Chip-discharge/dust-collection device for circular sawing machine

Chip removal and dust collection device of circular sawing machine

<p>20. . . Workbench</p><p>twenty two. . . Pivot</p><p>222. . . First pivot block</p><p>224. . . Stoppers</p><p>231. . . First end</p><p>twenty four. . . Return spring</p><p>26. . . Stop post</p><p>31. . . First shelf</p><p>312. . . Ministry of Freedom</p><p>32. . . Second shelf</p><p>322. . . Ministry of Freedom</p><p>324. . . Inner wall</p><p>34. . . Saw blade</p><p>40. . . Power unit</p><p>42. . . Power Parts</p><p>43. . . Knot combination</p><p>51. . . The first bearing seat</p><p>53. . . First driven shaft</p><p>532. . . Second end</p><p>541. . . First end</p><p>55. . . Drive wheel</p><p>57. . . Second driven wheel</p><p>59. . . Second belt</p><p>twenty one. . . Pivot unit</p><p>221. . . Bottom block</p><p>223. . . Second pivot</p><p>twenty three. . . Pivot</p><p>232. . . Second end</p><p>25. . . Limit rod</p><p>30. . . Saw blade carrier unit</p><p>311. . . Pivot</p><p>313. . . Outer wall</p><p>321. . . Pivot</p><p>323. . . Outer wall</p><p>33. . . Lock</p><p>35. . . handle</p><p>41. . . Fixed block</p><p>421. . . transmission shaft</p><p>50. . . Drive unit</p><p>52. . . Second bearing seat</p><p>531. . . First end</p><p>54. . . Second driven shaft</p><p>542. . . Second end</p><p>56. . . First driven wheel</p><p>58. . . First belt</p><p>60. . . Chip and dust collecting device</p><p>61. . . Baffle</p><p>63. . . First wall</p><p>64. . . Fan assembly</p><p>642. . . Second side panel</p><p>644. . . Sleeve</p><p>646. . . Taper</p><p>66. . . Chip connector</p><p>68. . . The first crumb chamber</p><p>70. . . Grinding device</p><p>711. . . Enclosure</p><p>713. . . Third chip hole</p><p>716. . . Chip guide</p><p>721. . . Turning wheel</p><p>73. . . Placement table assembly</p><p>732. . . Support column</p><p>734. . . Bearing block</p><p>736. . . Adjusting bolt</p><p>75. . . Lock</p><p>80. . . Buffer unit</p><p>82. . . Cylinder</p><p>83. . . Linked combination</p><p>91. . . Saw blade guard</p><p>94. . . Fixed block</p><p>96. . . Guard plate</p><p>62. . . First chip hole</p><p>631. . . Crumb mouth</p><p>641. . . First side board</p><p>643. . . blade</p><p>645. . . Locking pieces</p><p>65. . . Cover</p><p>67. . . Chip collection room</p><p>69. . . Lock</p><p>71. . . Chip guide unit</p><p>712. . . Second chip hole</p><p>714. . . Second wall</p><p>72. . . Grinding wheel assembly</p><p>722. . . sandpaper</p><p>731. . . Sleeve</p><p>733. . . Placement table</p><p>735. . . Arc hole</p><p>74. . . Cover</p><p>76. . . Second crumb chamber</p><p>81. . . Fixed frame</p><p>821. . . Piston rod</p><p>90. . . Protection unit</p><p>92. . . Link plate</p><p>95. . . link</p><p>98. . . Limit button</p><p>100. . . Debris dust</p><p>101. . . Debris dust</p><p>102. . . Crumb bag</p>

Figure 1 is an external view of a conventional circular sawing machine;

Figure 2 is a front view illustrating a preferred embodiment of the new chip removal and dust collection device installed in a circular sawing machine;

Figure 3 is a rear view of the preferred embodiment;

Figure 4 is an exploded perspective view of the preferred embodiment, illustrating a dust removal device and a grinding device;

Figure 5 is an exploded perspective view of the preferred embodiment, illustrating a transmission unit and a protection unit;

Figure 6 is a partial rear view of the preferred embodiment, illustrating the transmission unit;

Figure 7 is a partial top cross-sectional view of the preferred embodiment, illustrating the state of chip removal and dust collection; and

Fig. 8 is a partial longitudinal cross-sectional view of the preferred embodiment, illustrating the state of chip removal and dust collection.

[Technical field to which the new model belongs]

The new model relates to a sawing machine tool, in particular to a circular sawing machine that can effectively discharge debris and dust.

[Prior Art]

As shown in FIG. 1, the conventional circular saw machine 10 has a worktable 11, a set of pivot seats 12 provided at one end of the worktable 11, and a pivot member 13 is pivotally pivoted on the pivot seat. The saw blade holder 14 of 12 is a saw blade 15 rotatably installed on the saw blade holder 14, a motor 16 fixed on the saw blade holder 14 and capable of driving the saw blade 15, and a fixed A handle 17 provided on the saw blade support 14, a return spring 18 set on the pivot 13, and a chip removal pipe 19 provided on a top surface of the saw blade support 14.

When the operator holds the handle 17 and presses it down, the saw blade 15 can be driven to descend and perform a sawing operation on a workpiece (not shown) placed on the worktable 11. The chips can be thrown into the chip pipe 19 and discharged by the rotation of the saw blade 15.

Although the debris generated during the sawing process can be thrown into the chip removal pipe 19 by the rotation of the saw blade 15, in fact, there is insufficient rejection power, resulting in poor chip removal effect and often falling chips. Falling and flying will seriously affect the health of the operator and the lack of cutting quality.

[New Content]

Therefore, the purpose of the present invention is to provide a dust-removing and dust-collecting device of a circular sawing machine that can effectively discharge the debris and dust to maintain the health of the operator and the cutting quality of the saw.

Therefore, the new chip removal and dust collection device is installed on a circular sawing machine, the circular sawing machine has a worktable, a saw blade support unit pivotally pivoted to the worktable, and a set of The saw blade support unit is driven by a power unit; the saw blade support unit includes two spaced apart and pivoted on the worktable, a first support and a second support, and a A saw blade rotatably installed between the two supports; the transmission unit has a first driven shaft rotatably passing through the first support frame, and a saw blade rotatably passing through the The second supporting frame can drive the second driven shaft of the saw blade.

The chip removal and dust collection device includes a baffle plate fixed between the first and second supporting frames and located on the top side of the saw blade and the first driven shaft, and a baffle plate arranged on the first supporting frame and along the first supporting frame. A first chip-entry hole expanded radially by the driven shaft, a first wall body fixed on the first support frame and located outside the first chip-entry hole and formed with a chip outlet, and a set is attached to the The first driven shaft is located in the fan assembly in the first wall, a cover plate covering the first wall, and a set of chip discharge joints arranged on the two supporting frames and connected with the chip outlet, The first supporting frame cooperates with the first wall and the cover to define a debris collection chamber, and the baffle cooperates with the first supporting frame and the second supporting frame to define a first debris chamber.

With the above composition, the debris and dust generated by the sawing operation can be thrown into the first debris chamber due to the rotation of the saw blade, and the rotation of the fan assembly can absorb the debris and dust into the first The chip enters the chip hole and enters the chip collection chamber, and finally enters the chip discharge joint through the chip outlet for centralized discharge.

[Implementation mode]

The foregoing and other technical content, characteristics and power dissipation of the chip removal and dust collection device of the new circular saw machine will be clearly understood in the following detailed description of a preferred embodiment with reference to the drawings.

As shown in Figures 2, 3, 4, and 5, a preferred embodiment of the new type of chip removal and dust collection device is installed on a circular sawing machine, the circular sawing machine has a worktable 20, a hinge unit 21 is a saw blade support unit 30 pivotally pivoted to the worktable 20, a power unit 40 fixed to the pivot unit 21 and capable of driving a saw blade 34 by a transmission unit 50, and A buffer unit 80 and a protection unit 90 are provided between the pivot unit 21 and the saw blade support unit 30.

The workbench 20 is for placing a workpiece (not shown).

The pivot unit 21 includes a pivot base 22 that is locked to the workbench 20 by a plurality of locks, a pivot rod 23 transversely passing through the pivot base 22, and a return spring 24 set on the pivot rod 23 , And a limit rod 25.

The pivot base 22 has a bottom block 221, a first pivot block 222 and a second pivot block 223 extending from the bottom block 221 toward the top and parallel to each other, and a first pivot block 222 and a second pivot block 223 fixed to the first pivot block 222 and the second pivot block 223. The block 224 between the two pivot blocks 223.

The restoring spring 24 is a torsion spring in this embodiment, and has two end legs respectively abutting against the blocking post 26 and the blocking block 224 located on an inner wall surface of the pivot portion 311.

The limiting rod 25 is screw-locked to the stop block 224 and can extend between the two pivot parts 311 and 321.

The saw blade support unit 30 has a first support 31 and a second support 32, a saw blade 34 and a handle 35 which are spaced and parallel to each other and locked by a plurality of locking members 33.

Each of the two supports 31 and 32 has a pivot portion 311 and 321 pivoted to the pivot seat 21 by the pivot rod 23 and a free portion 312 and 322 extending from the pivot portion 311 and 321.

The saw blade support unit 30 can be pivoted by the pivot rod 23 as a fulcrum, and can be automatically reset by the return spring 24.

In addition, the pivot rod 23 has a first end 231 located outside the first pivot block 222 and a second end 232 slightly out of the second pivot block 223.

The saw blade 34 is rotatably installed between the two free parts 312 and 322.

The handle 35 can be directly fixed on the free portion 322 of the second supporting frame 32.

The power unit 40 has a fixed block 41 fixed on the outer side of the second pivot block 223, and a power member 42 that is interlocked to the fixed block 41 by a plurality of locking assemblies 43 and has a transmission shaft 421.

The transmission unit 50 includes a bearing seat 51 and a second bearing seat 52 respectively locked on an outer wall surface 323 of the second support frame 32 and adjacent to the pivot portion 321 and the free portion 322, respectively. A first driven shaft 53 and a second driven shaft 54 in the two bearing seats 51, 52 are tethered to the transmission shaft 421, the first driven shaft 53, and the second driven shaft 54 respectively. A driving wheel 55, a first driven wheel 56, a second driven wheel 57, a first belt 58 hung between the driving wheel 55 and the first driven wheel 56, and a first belt 58 hung on the first driven wheel 56 The second belt 59 between the driven wheel 56 and the second driven wheel 57 (see FIG. 6).

The first driven shaft 53 has a first end 531 passing through the first supporting frame 31, and a second end located outside the second supporting frame 32 and sheathed with the first driven wheel 56 532.

The second driven shaft 54 has a first end 541 located between the two free portions 322 and 312 and assembled with the saw blade 34, and a first end 541 located outside the second supporting frame 32 and connected with the second The second end 542 of the driven wheel 57.

When the power member 42 is activated, the first driven shaft 53, the second driven shaft 54 and the saw blade 34 can be driven to rotate.

The buffer unit 80 has a fixing frame 81 that is locked outside the first pivot block 222, a pressure cylinder 82 that is longitudinally locked to the fixing frame 81 and has a piston rod 821 extending toward the top, and a set of equipment The first end 231 of the pivot rod 23 is simultaneously locked to the first bracket 31 and can press the linkage assembly 83 of the piston rod 821. With the buffer unit 80, the saw blade support unit 30 can be buffered during the reset process to reduce the component damage rate.

The protection unit 90 has a saw blade guard 91 rotatably sleeved on the second bearing seat 52, a set of interlocking discs 92 connected to the saw blade guard 91, and a second pivot block 223. The fixed block 94 is rotatably pivoted to the fixed block 94 and colluded with the connecting rod 95 of the linkage plate 92, and one is positioned on the outside of the second support frame 32 by a two-locking assembly and can shield the transmission unit 50 and a guard plate 96 for locking the handle 35, and a set of limit buckles 98 fixed on the second bearing seat 52 and blocked on the outside of the interlocking disc 92. When not sawing, the saw blade guard 91 can automatically hang down by gravity and just shield the saw blade 34 for protection. In addition, the saw blade guard 91 can rotate with the saw blade support unit 30 The saw blade 34 is exposed and can be used for sawing operations.

Because the buffer unit 80 and the protection unit 90 are not the features of the present invention and are not a necessary design of a circular saw, they will not be described in detail. As shown in Figures 2, 4, 7, and 8, the preferred embodiment of the chip removal and dust collection device 60 includes an inner wall surface 324 fixed on the second supporting frame 32 and facing the pivot from the free portion 322 The part 321 extends and is located on the top side of the two driven shafts 53, 54 of the baffle 61. A first chip-in hole 62 that expands outwards is fixed on an outer wall surface 313 of the first supporting frame 31 and is located outside the first chip-in hole 62, and a chip outlet is formed at the top of the pivot portion 311 The first wall 63 of the 631, a set of a fan assembly 64 that is connected to the first end 531 and located in the first wall 63, a cover plate 65 that covers the first wall 63, and a set The chip discharge joint 66 is arranged on the two supporting frames 31 and 32 and connected with the chip outlet 631. The first supporting frame 31 and the first wall 63 and the cover plate 65 cooperate to define a dust collecting chamber 67, and the baffle 61 is between the first supporting frame 31 and the second supporting frame 32. Then, it cooperates to define a first chip containing chamber 68 which is open at the bottom and communicates with the first chip hole 62.

When the baffle 61 rotates with the saw blade support unit 30 to a preset position, it can be blocked by the limit rod 25, so that the design can make the saw blade support unit 30 reach the position and stop rotating.

The fan assembly 64 has a first side plate 641 and a second side plate 642 that are spaced apart and parallel to each other, and are fixed between the two side plates 641 and 642 and arranged radially with several blades 643, which are locked by two locks. A sleeve 644 fixed to the second side plate 642 and sleeved on the first end 531 of the first driven shaft 53, and a radially locked sleeve 644 and able to abut against the first end 531 In this way, the fan assembly 64 is assembled with the locking member 645 of the first driven shaft 53.

In addition, the first side plate 641 has a tapered hole portion 646 extending toward the first chip hole 62.

The cover plate 65 is locked to the first supporting frame 31 by a plurality of locking members 69 to obtain positioning.

It is worth noting that the circular saw machine further has a grinding device 70 with a chip guide unit 71, a grinding wheel assembly 72 and a placing table assembly 73.

The chip guide unit 71 has an enclosing body 711 formed in the reverse direction extending from the cover plate 65 toward the first wall 63, a second chip hole 712 provided at the proximal end of the cover plate 65, and A third chip-entry hole 713 arranged on the first carrier 31 and aligned with the second chip-entry hole 712, and a third chip-entry hole 713 fixed on the outer wall surface 313 of the first carrier 31 and located outside the third chip-entry hole 713 The second wall 714.

The grinding wheel assembly 72 has a rotating wheel 721 set on the first end 531 of the first driven shaft 53 and located in the enclosing body 711, and a sandpaper fixed on the outer wheel surface of the rotating wheel 721 722.

The placement platform assembly 73 has a sleeve 731 connected to the first end 231 of the pivot rod 23, a support column 732 extending from the sleeve 731 toward the top end, and a support column 732 fixed on the top end of the support column 732. A placing table 733 on which a workpiece (not shown) is placed, and a bearing block 734 provided with an arc-shaped hole 735. The bearing block 734 is placed at the bottom end of the placing table 733, and then an adjusting bolt 736 is inserted through the arc-shaped hole 735 and locked into the supporting column 732, so that the placing table 733 can be positioned on the grinding wheel 72 outside.

Preferably, the grinding device 70 further has a protective cover 74 that is locked on the bottom portion of the enclosure body 711 by a plurality of locking members 75. The protective cover 74 cooperates with the enclosing body 711 and the cover plate 65 to define a second chip containment chamber 76 with an open top side.

As shown in Figures 5, 6, 7, and 8, when the power is turned on, the power member 42 can drive the first driven shaft 53 and the second driven shaft 54 to rotate, and at the same time drive the assembly connected to the first driven shaft. The fan assembly 64 and the grinding wheel assembly 72 of the moving shaft 53 and the saw blade 34 assembled to the second driven shaft 54 also rotate.

When the sawing operation is performed, the debris and dust 100 generated during the sawing process will be thrown into the first debris chamber 68 due to the rapid rotation of the saw blade 34, and a suction force can be generated when the fan assembly 64 rotates. , The debris dust 100 located in the first debris chamber 68 can be smoothly sucked into the first debris inlet 62 and into the debris collection chamber 67, and then by the rotation of the fan assembly 64, The chip dust 100 can be introduced into the chip outlet 631, and finally enter the chip discharge joint 66 to be discharged in a concentrated manner.

When the grinding operation is performed, the debris and dust 101 generated during the grinding process will automatically fall into the second debris chamber 76, and the suction force generated by the rotation of the fan assembly 64 can sequentially pass through the second debris entry The hole 712 and the third chip-entry hole 713 enter the first chip-containing chamber 68, and then can enter the chip-collecting chamber 67 and finally discharged through the chip-removing joint 66.

As shown in FIG. 2, in practice, an air-permeable debris collection bag 102 can be assembled to the debris removal joint 66 to facilitate collection and processing of the debris dust 100 and 101.

Preferably, the chip guide unit 71 further has a chip guide plate 716 fixed to the cover plate 65 and arranged obliquely from the second chip hole 712 toward the third chip hole 713, and has a chip guide plate 716 that can guide the The detritus dust 101 enters the first detritus chamber 68 more smoothly.

It is worth noting that by aligning the tapered hole portion 646 of the fan assembly 64 with the first chip inlet 62, the effect of sucking the chip dust 100, 101 can be improved.

Through the above description, the new circular sawing machine has the following effects and advantages, so it can indeed achieve the purpose of the new type:

1. Because the present model is provided with the chip removal and dust collection device 60, the chip dust 100, 101 generated by the sawing operation and grinding operation can be effectively sucked into the chip collection chamber 67, and then discharged through the chip removal joint 66. In practice, it has a good chip removal effect, which can effectively maintain the health of the operator and the effect and advantages of the sawing quality.

2. Since the grinding device 70 can still be provided with the grinding function of the present invention, it also has the functions of sawing and grinding, and has the functions and advantages of a machine with multiple functions.

Schematic description

Figure 1 is an external view of a conventional circular sawing machine;

Figure 2 is a front view illustrating a preferred embodiment of the new chip removal and dust collection device installed in a circular sawing machine;

Figure 3 is a rear view of the preferred embodiment;

Figure 4 is an exploded perspective view of the preferred embodiment, illustrating a dust removal device and a grinding device;

Figure 5 is an exploded perspective view of the preferred embodiment, illustrating a transmission unit and a protection unit;

Figure 6 is a partial rear view of the preferred embodiment, illustrating the transmission unit;

Figure 7 is a partial top cross-sectional view of the preferred embodiment, illustrating the state of chip removal and dust collection; and

Fig. 8 is a partial longitudinal cross-sectional view of the preferred embodiment, illustrating the state of chip removal and dust collection.

Symbol description of main components

20. . . Workbench

twenty two. . . Pivot

222. . . First pivot block

224. . . Stoppers

231. . . First end

twenty four. . . Return spring

26. . . Stop post

31. . . First shelf

312. . . Ministry of Freedom

32. . . Second shelf

322. . . Ministry of Freedom

324. . . Inner wall

34. . . Saw blade

40. . . Power unit

42. . . Power Parts

43. . . Knot combination

51. . . The first bearing seat

53. . . First driven shaft

532. . . Second end

541. . . First end

55. . . Drive wheel

57. . . Second driven wheel

59. . . Second belt

twenty one. . . Pivot unit

221. . . Bottom block

223. . . Second pivot

twenty three. . . Pivot

232. . . Second end

25. . . Limit rod

30. . . Saw blade carrier unit

311. . . Pivot

313. . . Outer wall

321. . . Pivot

323. . . Outer wall

33. . . Lock

35. . . handle

41. . . Fixed block

421. . . transmission shaft

50. . . Drive unit

52. . . Second bearing seat

531. . . First end

54. . . Second driven shaft

542. . . Second end

56. . . First driven wheel

58. . . First belt

60. . . Chip and dust collecting device

61. . . Baffle

63. . . First wall

64. . . Fan assembly

642. . . Second side panel

644. . . Sleeve

646. . . Taper

66. . . Chip connector

68. . . The first crumb chamber

70. . . Grinding device

711. . . Enclosure

713. . . Third chip hole

716. . . Chip guide

721. . . Turning wheel

73. . . Placement table assembly

732. . . Support column

734. . . Bearing block

736. . . Adjusting bolt

75. . . Lock

80. . . Buffer unit

82. . . Cylinder

83. . . Linked combination

91. . . Saw blade guard

94. . . Fixed block

96. . . Guard plate

62. . . First chip hole

631. . . Crumb mouth

641. . . First side board

643. . . blade

645. . . Locking pieces

65. . . Cover

67. . . Chip collection room

69. . . Lock

71. . . Chip guide unit

712. . . Second chip hole

714. . . Second wall

72. . . Grinding wheel assembly

722. . . sandpaper

731. . . Sleeve

733. . . Placement table

735. . . Arc hole

74. . . Cover

76. . . Second crumb chamber

81. . . Fixed frame

821. . . Piston rod

90. . . Protection unit

92. . . Link plate

95. . . link

98. . . Limit button

100. . . Debris dust

101. . . Debris dust

102. . . Crumb bag