Cutting device for nylon products

Abstract

The utility model discloses a cutting device for a nylon product, which relates to the field of cutting, achieves the purpose of measuring the length of the nylon product during cutting and improves the cutting accuracy, and adopts the technical scheme that the cutting device comprises a working table and a stand column, the stand column is positioned above the working table and is vertically and fixedly connected with the working table; the stand column is slidably connected with a moving rod and provided with a first driving piece for driving the moving rod to slide in the height direction of the stand column. The second driving piece comprises a dovetail block connected to the moving rod in a sliding mode, the cutting knife is arranged on the dovetail block, a pointer located in the same plane with the cutting knife is arranged on the dovetail block, the plane where the cutting knife and the pointer are located is perpendicular to the length direction of the nylon tube to be cut, and the dovetail block is connected with the pointer through a telescopic piece. The pointer abuts against the upper end face of the workbench and is used for indicating the scale marks.

Description

Technical Field

[0001] The utility model relates to the field of cutting, and more specifically, to a cutting device for nylon products. Background Art

[0002] Nylon is a synthetic fiber, a name for nylon, which can support long fibers and short fibers. It is extremely stable in nature. In daily life, nylon products often need to be processed using cutting devices, and there are many types of cutting devices.

[0003] At present, a Chinese patent application number CN201922223311.5 on the market discloses a cutting device for nylon pipe processing, comprising a support table and a first hydraulic telescopic cylinder, a fixed clamping block is installed on one side of the upper surface of the support table, and a movable clamping block is slidably installed on the other side of the upper surface of the support table, a clamping plate is provided on the side of the movable clamping block away from the fixed clamping block, the clamping plate is fixed to the support table, and a clamping groove is linearly opened on the clamping plate, a fixed plate is inserted in the clamping groove, the first hydraulic telescopic cylinder is fixed on the side of the fixed plate close to the movable clamping block, and the telescopic end of the first hydraulic telescopic cylinder is rotatably connected to the movable clamping block;

[0004] A support column is arranged on one side of the fixed clamping block away from the movable clamping block, the support column is fixed on the support platform, a top plate is fixed on the top of the support column, a cavity is arranged at the bottom of the top plate, an adjusting screw rod is rotatably installed in the cavity, a mounting block is installed on the adjusting screw rod, and a cutting device is fixed on the bottom end of the mounting block.

[0005] At present, there is a nylon tube cutting device on the market with application number CN201921958376.8, which includes a fixed catheter and a cutter. The cutter is arranged above the fixed catheter, and the nylon tube passes through the fixed catheter, and the nylon tube is cut by the cutter. A positioning mechanism is arranged on the outside of the entrance end of the fixed catheter, one end of the positioning mechanism is designed as an inlet, and the other end is designed as an outlet. A groove is opened on the inner wall of the positioning mechanism along its length extension direction, and a mounting seat is arranged on the side of the groove close to the inlet. A stop rod is hinged on the mounting seat, and a rubber pad is arranged on the end of the stop rod.

[0006] The above two devices can solve the problems of working efficiency and position deviation during the cutting process of nylon products, but cannot measure the length of the nylon products when they are cut, resulting in inaccurate cutting. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model aims to provide a cutting device for nylon products, which has the function of measuring the length of the nylon products when they are cut, thereby improving the cutting accuracy.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A cutting device for nylon products, comprising a workbench and a column, wherein the column is located above the workbench and vertically fixedly connected to the workbench, a moving rod is slidably connected to the column, and a first driving member for driving the moving rod to slide along the height direction of the column is provided on the column;

[0010] A cutting knife is provided on one side of the moving rod facing the workbench, and a second driving member is provided on the moving rod to drive the cutting knife to slide along the length direction of the moving rod;

[0011] The workbench is provided with a fixing piece for fixing the nylon tube to be cut;

[0012] The workbench is provided with scale lines, the second driving member includes a dovetail block slidably connected to the moving rod, the cutting knife is arranged on the dovetail block, the dovetail block is provided with a pointer located in the same plane as the cutting knife, the plane where the cutting knife and the pointer are located is perpendicular to the length direction of the nylon tube to be cut, the dovetail block is connected to the pointer through a telescopic member, the pointer contacts the upper end surface of the workbench and is used to indicate the scale lines; a first baffle is fixedly connected to the workbench, the first baffle is located between the column and the fixing member close to the column, and the first baffle is distributed on the 0 scale line corresponding to the scale line;

[0013] The dovetail block is provided with a power piece for driving the cutting knife to rotate.

[0014] By adopting the above technical solution, the nylon tube to be cut is fixed on the workbench through the fixing member. At this time, one end of the nylon tube to be cut conflicts with the first baffle. The dovetail block can slide along the length direction of the moving rod through the second driving member. At this time, the cutting knife is rotated by the power member. When the dovetail block moves to the required length of the nylon tube, the scale line pointed by the pointer is the required length of the nylon tube. At the same time, the first driving member causes the moving rod to slide along the height direction of the column, thereby solving the problem of the cutting knife descending and sliding, and realizing the measurement of the length of the nylon tube when being cut, thereby improving the cutting accuracy.

[0015] Preferably: the second driving member also includes a dovetail groove opened on the moving rod, and the dovetail block is slidably connected through the dovetail groove, a second screw rod is rotatably connected to the groove wall in the dovetail groove, and the dovetail block is threadedly connected to the second screw rod, and the moving rod is provided with a third motor that drives the dovetail block to slide along the length direction of the moving rod.

[0016] Preferably: the telescopic member includes a fixed rod arranged on the dovetail block, the fixed rod is provided with a fourth slide groove, the fixed rod is slidably connected to the fourth slider through the fourth slide groove, the end of the fourth slider away from the dovetail block is fixedly connected to the connecting rod, the end of the connecting rod away from the fourth slider is fixedly connected to the pointer, the two sides of the end of the fourth slide groove away from the dovetail block are respectively fixedly connected with the second baffle plates, and the diameter of the connecting rod is smaller than the distance between the two second baffle plates, when the upper end surface of the connecting rod is located at the bottom of the fourth slide groove, there is a gap between the connecting rod and the workbench, and the lower end of the connecting rod extends out of the notch of the fourth slide groove.

[0017] Preferably: the first driving member includes a first slide groove opened on the column, and the first slide groove is distributed along the height direction of the column, a first slider is slidably connected in the first slide groove, and the first slider is fixedly connected to the moving rod, a connecting groove connected to the first slide groove is opened on the outer wall of the column, the connecting groove is for the moving rod to slide, and the moving rod is kept horizontal with the workbench, a first screw rod is provided on the upper and lower relative groove walls of the first slide groove, and the first screw rod is rotatably connected to the first slide groove, the first slider is threadedly connected to the first screw rod, and a first motor that drives the first screw rod to rotate is provided on the column.

[0018] Preferably: the power part includes a connecting plate arranged on the dovetail block, and the connecting plate is vertically fixedly connected to the moving rod, a first rotating shaft is fixedly connected to the cutting knife, the first rotating shaft is rotatably connected to the connecting plate, and the connecting plates are respectively extended from both ends of the first rotating shaft, and a second motor is provided on the workbench to drive the first rotating shaft to rotate.

[0019] Preferably: the workbench is provided with a groove facing the cutting knife, the fixing part includes fixing blocks arranged at both ends of the groove, and each of the fixing blocks is fixedly connected to the workbench, the upper end surface of each of the fixing blocks is provided with a first arc groove matching with the lower end surface of the nylon tube, and each of the two ends of the first arc groove is fixedly connected with a fixing tube, a pressing plate is passed between the two fixing tubes, the pressing plate is provided with a second arc groove matching with the upper end surface of the nylon tube, and a fixing plate is respectively provided at one end of the pressing plate away from the second arc groove, and each of the fixing plates is threadedly connected to the fixing tube.

[0020] Preferably, two rotating rollers supporting the nylon tube to be cut are rotatably connected to the workbench respectively, and the upper end surface of each of the rotating rollers is flush with the first arc groove of the fixed block.

[0021] Preferably: a pulley is fixedly connected below the workbench, and there are four pulleys respectively distributed at four corner points of the workbench.

[0022] Preferably: two third slide grooves are opened at the bottom of the workbench, and a third slider is slidably connected to the groove wall of each of the third slide grooves. A collection box is provided at the bottom of the workbench, and the two ends of the collection box are respectively fixedly connected to the two third sliders, and a hole connected to the collection box is opened at the bottom of the groove.

[0023] In summary, the utility model has the following beneficial effects: when the nylon tube to be cut is located on the fixed part on the workbench and is located at the first baffle on the 0 scale line, the first driving part at one end of the column is driven to drive the screw to rotate, so that the moving rod can slide along the height direction of the column, and the second driving part can be driven to realize the sliding of the cutting knife on the dovetail block along the length direction of the moving rod. At this time, the pointer connected to the dovetail block by the telescopic part is located in the same horizontal plane as the cutting knife, and keeps the length direction perpendicular to the nylon tube to be cut, and then the power part is driven to realize the rotation of the cutting knife, so as to realize the measurement of the length of the nylon tube when cutting, and improve the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of this embodiment;

[0025] Figure 2 is a schematic diagram of the structure of the telescopic member of this embodiment;

[0026] Figure 3 is a schematic structural diagram of the third slider in this embodiment;

[0027] Figure 4 This is a schematic diagram of the structure of the working table from a top view in this embodiment;

[0028] Figure 5 It is a schematic diagram of the structure of the fixing member of this embodiment.

[0029] In the figure: 1, workbench; 2, column; 3, scale line; 4, first slide; 5, first screw rod; 6, first slider; 7, first motor; 8, moving rod; 9, connecting groove; 10, cutting knife; 11, dovetail groove; 12, dovetail block; 13, connecting plate; 14, first rotating shaft; 15, second motor; 16, groove; 17, fixing rod; 18, pointer; 19, fixing block; 20, first arc groove; 21, roller; 22, pulley; 23, third slide; 24, first baffle; 25, third slider; 26, collecting box; 27, fourth slide; 28, second baffle; 29, fixing tube; 30, pressing plate; 31, fixing plate; 32, fourth slider; 33, second arc groove; 34, hole; 36, third motor; 37, second screw rod; 371, connecting rod. DETAILED DESCRIPTION

[0030] Reference Figures 1 to 5The embodiments of the utility model are further described.

[0031] A cutting device for nylon products, such as Figure 1 , comprising a workbench 1 and a column 2, the column 2 is located above the workbench 1 and is vertically fixedly connected to the workbench 1, a moving rod 8 is slidably connected to the column 2, and a first driving member for driving the moving rod 8 to slide along the height direction of the column 2 is provided on the column 2;

[0032] A cutting knife 10 is provided on one side of the moving rod 8 facing the workbench 1, and a second driving member for driving the cutting knife 10 to slide along the length direction of the moving rod 8 is provided on the moving rod 8;

[0033] like Figure 5 , the workbench 1 is provided with a fixing piece for fixing the nylon tube to be cut;

[0034] The workbench 1 is provided with scale lines 3, and the scale lines 3 are distributed along the length direction of the nylon tube. The second driving member includes a dovetail block 12 slidably connected to the moving rod 8. The cutting knife 10 is arranged on the dovetail block 12. The dovetail block 12 is provided with a pointer 18 located in the same plane as the cutting knife 10. The plane where the cutting knife 10 and the pointer 18 are located is perpendicular to the length direction of the nylon tube to be cut. The dovetail block 12 is connected to the pointer 18 through a telescopic member. The pointer 18 contacts the upper end surface of the workbench 1 and is used to indicate the scale lines 3.

[0035] A first baffle 24 is fixedly connected to the workbench 1. The first baffle 24 is located between the column 2 and a fixing member close to the column 2. The first baffle 24 is distributed on the 0 scale line of the scale line 3. At this time, one end of the nylon tube to be cut is in contact with the first baffle 24. The position indicated by the pointer 18 is the length of the nylon tube to be cut.

[0036] The dovetail block 12 is provided with a power member for driving the cutting knife 10 to rotate.

[0037] like Figure 1 and Figure 4 , fix the nylon tube to be cut on the workbench 1 through a fixing member. At this time, one end of the nylon tube to be cut conflicts with the first baffle 24. The dovetail block 12 can slide along the length direction of the moving rod 8 through the second driving member. At this time, the cutting knife 10 is rotated by the power member. When the dovetail block 12 moves to the required length of the nylon tube, the scale line pointed by the pointer 18 is the required length of the nylon tube. At the same time, the first driving member causes the moving rod 8 to slide along the height direction of the column 2, thereby solving the problem of the cutting knife 10 falling and sliding, and realizing the measurement of the length of the nylon tube when cutting, thereby improving the cutting accuracy.

[0038] like Figure 1The second driving member also includes a dovetail groove 11 opened on the moving rod 8, and the dovetail block 12 is slidably connected through the dovetail groove 11, and a second screw rod 37 is rotatably connected to the groove wall in the dovetail groove 11, and the dovetail block 12 is threadedly connected to the second screw rod 37. The moving rod 8 is provided with a third motor 36 for driving the dovetail block 12 to slide along the length direction of the moving rod 8. When the third motor 36 is driven, the second screw rod 37 is rotated, and the dovetail block 12 threadedly connected to the second screw rod 37 is driven to slide in the dovetail groove 11 at the same time, so that the dovetail block 12 slides along the length direction of the moving rod 8.

[0039] like Figure 2 The telescopic member includes a fixed rod 17 arranged on the dovetail block 12, a fourth slide groove 27 is provided on the fixed rod 17, the fixed rod 17 is slidably connected to a fourth slider 32 through the fourth slide groove 27, an end of the fourth slider 32 away from the dovetail block 12 is fixedly connected to a connecting rod 371, an end of the connecting rod 371 away from the fourth slider 32 is fixedly connected to the pointer 18, and both sides of the end of the fourth slide groove 27 away from the dovetail block 12 are respectively fixedly connected to the second baffle 28, and the diameter of the connecting rod 371 is smaller than the distance between the two second baffles 28. At the same time, when the connecting rod 371 is connected to the pointer 18, the second baffle 28 is fixedly connected to the pointer 18. When the upper end surface of the connecting rod 371 is located at the bottom of the fourth slide groove 27, there is a gap between the connecting rod 371 and the workbench 1, and the lower end of the connecting rod 371 extends out of the notch of the fourth slide groove 27. When the nylon tube to be cut is located on the fixing part, the fixing rod 17 descends with the sliding of the moving rod 8. Since the pointer 18 is always in conflict with the workbench, when measuring, the pointer 18 squeezes the fourth slider 32 and moves upward along the fourth slide groove 27, and the second baffle 28 limits the fourth slider 32 from sliding out. This setting can measure the length of the nylon tube and improve the cutting accuracy.

[0040] like Figure 1 The first driving member includes a first slide groove 4 provided on the column 2, and the first slide groove 4 is distributed along the height direction of the column 2, a first slider 6 is slidably connected in the first slide groove 4, and the first slider 6 is fixedly connected to the moving rod 8, a connecting groove 9 connected to the first slide groove 4 is provided on the outer wall of the column 2, the connecting groove 9 is provided for the moving rod 8 to slide, and the moving rod 8 is kept horizontal with the workbench 1, a first screw rod 5 is provided on the upper and lower relative groove walls of the first slide groove 4, and the first screw rod 5 is rotatably connected to the first slide groove 4, the first slider 6 is threadedly connected to the first screw rod 5, and a first motor 7 that drives the first screw rod 5 to rotate is provided on the column 2. When the first motor 7 is started, the rotation of the first screw rod 5 drives the first slider 6 to slide along the height direction of the column 2, the first slider 6 is fixedly connected to the moving rod 8, and the connecting groove 9 provided at the same time can realize the sliding of the moving rod 8 along the height direction of the column 2.

[0041] like Figure 2The power part includes a connecting plate 13 arranged on the dovetail block 12, and the connecting plate 13 is vertically fixedly connected to the moving rod 8. The setting of this position relationship can realize better cutting of the nylon tube by the cutting knife 10 when it rotates. A first rotating shaft 14 is fixedly connected to the cutting knife 10, and the first rotating shaft 14 is rotatably connected to the connecting plate 13, and the connecting plates 13 are respectively extended from both ends of the first rotating shaft 14. A second motor 15 that drives the first rotating shaft 14 to rotate is provided on the workbench 1. When the second motor 15 is started, the rotation of the first rotating shaft 14 drives the rotation of the cutting knife 10 on the connecting plate 13 to complete the cutting.

[0042] like Figure 5 and Figure 1 The workbench 1 is provided with a groove 16 facing the cutting knife 10. When the cutting knife 10 is at the lowest position, the collision damage of the cutting knife 10 on the workbench 1 is reduced, and the nylon tube can be completely cut off. The fixing member includes fixing blocks 19 arranged at both ends of the groove 16, and each fixing block 19 is fixedly connected to the workbench 1. The upper end surface of each fixing block 19 is provided with a first arc groove 20 matched with the lower end surface of the nylon tube. This setting can better realize the contact area between the lower end surface of the nylon tube and the first arc groove 20, increase friction, and better fix each The two ends of the first arc groove 20 are respectively fixedly connected with fixed tubes 29, and a pressing plate 30 is inserted between the two fixed tubes 29. The pressing plate 30 is provided with a second arc groove 33 that matches the upper end surface of the nylon tube. This arrangement can better fix the nylon tube on the fixed block 19 and improve the cutting accuracy. The pressing plate 30 is respectively provided with a fixing plate 31 at one end away from the second arc groove 33, and each fixing plate 31 is threadedly connected to the fixed tube 29. The pressing plate 30 can be disassembled through the threaded connection, and can be adjusted according to the diameter of the nylon tube.

[0043] like Figure 1 and Figure 4 Two rollers 21 supporting the nylon tube to be cut are rotatably connected on the workbench 1, and the upper end surface of each roller 21 is flush with the first arc groove 20 of the fixed block 19. The nylon tube to be cut is transported to the fixed block 19 through the rotating roller 21, which can save manpower and is easy to operate.

[0044] like Figure 1 A pulley 22 is fixedly connected to the bottom of the workbench 1, and there are four pulleys 22 distributed at four corner points of the workbench 1. This setting can realize the location conversion of the workbench 1, which is labor-saving and easy and quick to operate.

[0045] like Figure 3 and Figure 1Two third chutes 23 are provided at the bottom of the workbench 1, and a third slider 25 is slidably connected to the groove wall of each third chute 23. A collecting box 26 is provided at the bottom of the workbench 1, and the two ends of the collecting box 26 are respectively fixedly connected to the two third sliders 25. A hole 34 connected to the collecting box 26 is provided at the bottom of the groove 16. When the nylon tube is cut, the waste generated will pass through the hole 34 at the bottom of the groove 16 and enter the collecting box 26. At the same time, the collecting box 26 can be disassembled by sliding the third slider 25 in the third chute 23, and the operation is convenient and quick.

[0046] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A cutting device for nylon products, comprising a workbench (1) and a column (2), wherein the column (2) is located above the workbench (1) and is vertically fixedly connected to the workbench (1), a moving rod (8) is slidably connected to the column (2), and a first driving member for driving the moving rod (8) to slide along the height direction of the column (2) is provided on the column (2); A cutting knife (10) is provided on a side of the moving rod (8) facing the workbench (1), and a second driving member for driving the cutting knife (10) to slide along the length direction of the moving rod (8) is provided on the moving rod (8); The workbench (1) is provided with a fixing member for fixing the nylon tube to be cut; its characteristics are: The workbench (1) is provided with a scale line (3), the second driving member comprises a dovetail block (12) slidably connected to the moving rod (8), the cutting knife (10) is arranged on the dovetail block (12), the dovetail block (12) is provided with a pointer (18) located in the same plane as the cutting knife (10), the plane where the cutting knife (10) and the pointer (18) are located is perpendicular to the length direction of the nylon tube to be cut, the dovetail block (12) is connected to the pointer (18) via a telescopic member, the pointer (18) contacts the upper end surface of the workbench (1) and is used to indicate the scale line (3); A first baffle (24) is fixedly connected to the workbench (1), the first baffle (24) is located between the column (2) and a fixing member close to the column (2), and the first baffle (24) is distributed on the 0 scale line corresponding to the scale line (3); The dovetail block (12) is provided with a power component for driving the cutting knife (10) to rotate.

2. A cutting device for nylon products according to claim 1, characterized in that: The second driving member also includes a dovetail groove (11) formed on the moving rod (8), and the dovetail block (12) is slidably connected via the dovetail groove (11); a second screw rod (37) is rotatably connected to the groove wall in the dovetail groove (11), and the dovetail block (12) is threadedly connected to the second screw rod (37); and a third motor (36) is provided on the moving rod (8) for driving the dovetail block (12) to slide along the length direction of the moving rod (8).

3. The cutting device for nylon products according to claim 1, characterized in that: The telescopic member comprises a fixed rod (17) arranged on the dovetail block (12), a fourth slide groove (27) being provided on the fixed rod (17), the fixed rod (17) being slidably connected to a fourth slider (32) via the fourth slide groove (27), one end of the fourth slider (32) away from the dovetail block (12) being fixedly connected to a connecting rod (371), one end of the connecting rod (371) away from the fourth slider (32) being fixedly connected to a pointer (18), two sides of one end of the fourth slide groove (27) away from the dovetail block (12) being fixedly connected to second baffles (28), respectively, and a diameter of the connecting rod (371) being smaller than a distance between two second baffles (28), and when an upper end surface of the connecting rod (371) is located at a groove bottom of the fourth slide groove (27), a gap exists between the connecting rod (371) and the workbench (1), and a lower end of the connecting rod (371) extends out of a notch of the fourth slide groove (27).

4. The cutting device for nylon products according to claim 1, characterized in that: The first driving member comprises a first slide groove (4) provided on the column (2), and the first slide groove (4) is distributed along the height direction of the column (2); a first slider (6) is slidably connected in the first slide groove (4), and the first slider (6) is fixedly connected to the moving rod (8); a connecting groove (9) connected to the first slide groove (4) is provided on the outer wall of the column (2); the connecting groove (9) is for the moving rod (8) to slide; the moving rod (8) is kept horizontal with the workbench (1); a first screw rod (5) is provided on the upper and lower relative groove walls of the first slide groove (4), and the first screw rod (5) is rotatably connected to the first slide groove (4); the first slider (6) is threadedly connected to the first screw rod (5); and a first motor (7) for driving the first screw rod (5) to rotate is provided on the column (2).

5. The cutting device for nylon products according to claim 1, characterized in that: The power member comprises a connecting plate (13) arranged on the dovetail block (12), and the connecting plate (13) is vertically fixedly connected to the moving rod (8); a first rotating shaft (14) is fixedly connected to the cutting knife (10), the first rotating shaft (14) is rotatably connected to the connecting plate (13), and both ends of the first rotating shaft (14) extend out of the connecting plate (13); and a second motor (15) is provided on the workbench (1) for driving the first rotating shaft (14) to rotate.

6. The cutting device for nylon products according to claim 1, characterized in that: The workbench (1) is provided with a groove (16) facing the cutting knife (10), the fixing member comprises fixing blocks (19) arranged at both ends of the groove (16), and each of the fixing blocks (19) is fixedly connected to the workbench (1), the upper end surface of each of the fixing blocks (19) is provided with a first arc groove (20) matching with the lower end surface of the nylon tube, and the two ends of each of the first arc grooves (20) are respectively fixedly connected with a fixing tube (29), a pressing plate (30) is passed between the two fixing tubes (29), the pressing plate (30) is provided with a second arc groove (33) matching with the upper end surface of the nylon tube, and a fixing plate (31) is respectively provided at one end of the pressing plate (30) away from the second arc groove (33), and each of the fixing plates (31) is threadedly connected to the fixing tube (29).

7. A cutting device for nylon products according to claim 6, characterized in that: Two rotating rollers (21) supporting the nylon tube to be cut are rotatably connected to the workbench (1), and the upper end surface of each rotating roller (21) is flush with the first arc groove (20) of the fixed block (19).

8. The cutting device for nylon products according to claim 1, characterized in that: A pulley (22) is fixedly connected below the workbench (1), and there are four pulleys (22) respectively distributed at four corner points of the workbench (1).

9. The cutting device for nylon products according to claim 6, characterized in that: The bottom of the workbench (1) is provided with two third slide grooves (23), and a third slider (25) is slidably connected to the groove wall of each of the third slide grooves (23). A collection box (26) is provided at the bottom of the workbench (1), and the two ends of the collection box (26) are respectively fixedly connected to the two third sliders (25). The bottom of the groove (16) is provided with a hole (34) connected to the collection box (26).

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