CN114798946A

CN114798946A - Numerical control punch press garbage collection device

Info

Publication number: CN114798946A
Application number: CN202210344397.0A
Authority: CN
Inventors: 许姚
Original assignee: Nantong Zhongde Machinery Manufacturing Co ltd
Current assignee: Ningbo Jiapeng Machinery Equipment Manufacturing Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-29
Anticipated expiration: 2042-03-31
Also published as: CN114798946B

Abstract

The invention discloses a numerical control punch waste collecting device which comprises a base, wherein the base is of a U-shaped structure, and a collecting mechanism is rotatably connected to the base; collect the mechanism including rotating the first pole of connection in the base, first pole lateral wall is fixed with cylinder and face cam in proper order, the cylinder is fixed with three box body along the circumference equipartition, the box body inner wall is fixed with a plurality of elastic airbag, elastic airbag's one end is fixed with the arc, a plurality of cavitys have been seted up to the arc inner wall, the cavity inner wall runs through sealed sliding connection and chooses the stick, box body inner wall symmetry has seted up the sliding chamber, there is the slider through conductive spring elastic connection in the sliding chamber. According to different plate materials, the output end of the motor and the first rod are driven by the controller to rotate by different angles, so that a first box body is in a vertical state, waste materials and scraps falling from punching enter the first box body, and the waste materials with different punching shapes are classified and collected.

Description

Numerical control punch press garbage collection device

Technical Field

The invention relates to the technical field of relevant equipment of punching machines, in particular to a waste collecting device of a numerical control punching machine.

Background

The punch press is a stamping type press, and is widely applied to stamping and forming of hardware parts and the like of electronics, communication, computers, household appliances, furniture, transportation tools, (automobiles, motorcycles and bicycles).

Through search, patent with application number CN 201821346108.6: the utility model provides a numerical control punch's waste recovery device, transports the waste material that the punching press produced to the collecting box, and the collecting box is placed in workstation side below, conveniently takes out the waste material to take out the collection thing drawer and handle the collection thing drawer then after collecting full, need not to dismantle whole collecting box, conveniently take out the waste material, but also have some not enough:

the waste materials generated after punching are disorderly accumulated in the collection box, so that more space is occupied, the scattered waste materials are not beneficial to subsequent transportation, meanwhile, scraps are generated in the punching process, the scraps are not treated and doped in the waste materials, and the scraps are easy to scatter in the subsequent collection and transportation process, so that the environmental pollution is caused; moreover, the current numerical control punch press mainly punches holes in plates, such as aluminum plates, aluminum-coated zinc plates, stainless steel plates and the like, and the patent only plays a role in recycling waste materials when punching the plates, cannot collect the waste materials according to the types of the waste materials, and is not beneficial to recycling.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a waste collecting device of a numerical control punch.

In order to achieve the purpose, the invention adopts the following technical scheme:

a numerical control punch waste collecting device comprises a base, wherein the base is of a U-shaped structure, and a collecting mechanism is rotatably connected to the base;

the collecting mechanism comprises a first rod which is rotatably connected in a base, a cylinder and a face cam are sequentially fixed on the side wall of the first rod, three box bodies are uniformly distributed and fixed on the cylinder along the circumferential direction, a plurality of elastic air bags are fixed on the inner wall of each box body, an arc plate is fixed at one end of each elastic air bag, a plurality of cavities are formed in the inner wall of the arc plate, picking rods are connected with the inner wall of each cavity in a penetrating and sealing and sliding mode, sliding cavities are symmetrically formed in the inner wall of each box body, sliding blocks are elastically connected in the sliding cavities through conductive springs, the inner wall of the upper end of each sliding cavity is fixedly communicated with the cavities through hoses, a filter screen is fixed on the inner wall of each box body, a sucking and removing mechanism for collecting punching scraps is arranged on the inner wall of the bottom of each box body, a first box body is fixed on the inner side wall of the base, a moving block is connected with the inside of the first box body in a sealing and sliding mode, and an L-shaped rod is fixed on the side wall of the moving block, the L-shaped rod penetrates through one end of the first box body, and is rotatably connected with a matching wheel, the L-shaped rod is elastically connected with the inner wall of the first box body through a first spring, and the inner wall, close to the cylinder, of the first box body is fixedly communicated with the elastic air bag through a communicating pipe.

Further, the gettering mechanism is including seting up the three gettering chamber at the cylinder inner wall, every the gettering chamber is all through the fixed intercommunication of a plurality of check pipes I and a box body that corresponds, the intracavity sliding connection that getters on has the screen frame, the inner wall that conductive spring was kept away from in smooth chamber is through check pipe II and the fixed intercommunication in gettering chamber.

Further, the base lateral wall is fixed with the motor, the output and the first pole coaxial fixation of motor, the inside that first box is close to communicating pipe carries hydraulic oil, cooperation wheel and face cam offset the slip, a plurality of recesses have been seted up to the box body inner wall, every the elasticity gasbag is fixed in a corresponding recess, face cam is right trapezoid structure from the side, slider sealing sliding connection is in the sliding cavity.

Further, collect the mechanism and still include the second pole of rotating the connection at the base inner wall, second pole lateral wall is fixed with first gear, the face cam lateral wall is fixed with annular toothed belt, annular toothed belt and first gear engagement are connected, second pole lateral wall is fixed with the action wheel, the base lateral wall rotates and is connected with from the driving wheel, the action wheel with pass through the conveyer belt from the driving wheel and connect, the conveyer belt is located under the box body position, just the width of conveyer belt is greater than the width of box body.

Further, collect the mechanism still including seting up the spout at the base inner wall, the spout inside wall is fixed with a plurality of second springs, sliding connection has the collection box in the spout, the spout is kept away from the inside wall of second spring and is seted up the dead slot, sealed sliding connection has the roof in the dead slot, the dead slot keeps away from the fixed intercommunication of inner wall of communicating pipe through one-way pipe III and first box, the one-way venthole of second has been seted up to the dead slot inner wall.

Further, collect the mechanism still including seting up the rectangular channel at the box body roof, the rectangular channel internal rotation is connected with the pinion, the slider roof is fixed with first rack, sliding connection has the pinion rack through the rectangular channel inner wall, pinion rack and first rack dislocation set, pinion rack and pinion meshing, first rack and pinion meshing.

Furthermore, a first air leakage hole is formed in the inner wall of the cavity, and a first one-way air inlet hole and a first one-way air outlet hole are formed in the inner walls of the two ends of the sliding cavity respectively.

The invention has the following advantages:

1. according to different plate materials, the output end of the motor and the first rod are driven by the controller to rotate by different angles, so that one first box body is in a vertical state, waste materials and scraps falling from punching enter the first box body together, and the waste materials with different punching shapes are classified and collected;

2. after the punching operation is completed, the conductive spring is electrified through the controller, and then the conductive spring contracts to drive the sliding block to slide upwards in a sealing manner along the inner wall of the cavity, on one hand, the toothed plate horizontally moves to abut against the inner side wall of the first box body, so that the inside of the first box body is in a closed state, on the other hand, the sliding block extrudes part of gas in the sliding cavity into the cavity through the hose, further, the compressed gas pushes the picking rod to slide in the cavity in a sealing manner, the picking rod is inserted into the waste materials, adjacent waste materials move to generate gaps, waste chips accumulated on the waste materials can conveniently drop, the subsequent absorption and collection of the waste chips are convenient, and negative pressure can be pumped in the absorption cavity through a one-way pipe II, so that the absorption cavity sucks the waste chips falling from the filter screen in the first box body into the absorption cavity through a plurality of one-way pipes I, and the waste chips are collected by the filter screen frame;

3. when the surface cam rotates, hydraulic oil in the first box body is extruded into the elastic air bag through the matching wheel, the L-shaped rod and the moving block and then is drawn out, so that the elastic air bag intermittently drives the corresponding arc-shaped plates to extrude and form waste materials from different angles, the occupied space of the waste materials is reduced, the collection amount of the collection box is increased, and the collection and transportation capacity of the waste materials in the later period is improved;

4. after the plurality of arc-shaped plates are extruded, the conductive springs and the motors are powered off successively through the controller, so that waste materials extruded in the box body fall onto the conveying belt and then fall into the collecting box through the conveying of the conveying belt;

5. when moving the piece and sealing the slip in first box, still will push into the dead slot through one-way tube III with gaseous extrusion and promote the sealed slip of roof, make the continuous striking of roof collect the box and produce elastic collision with the second spring, shake the extruded waste material in collecting the box, further reduce the space that the waste material occupy in collecting the box, improve the loading capacity of collecting the box.

Drawings

FIG. 1 is a schematic structural diagram of a scrap collecting apparatus of a numerical control press according to the present invention;

FIG. 2 is a schematic top view of a scrap collecting apparatus for a CNC punch press according to the present invention;

FIG. 3 is an enlarged view of the structure of part A in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure of part B of FIG. 1;

fig. 5 is a schematic perspective view of a cylinder and a box in the scrap collecting device of a numerical control press according to the present invention.

In the figure: 1 base, 201 first rod, 202 face cam, 203 first box, 204 moving block, 205L-shaped rod, 206 matching wheel, 207 elastic air bag, 208 cavity, 209 picking rod, 210 sliding cavity, 211 arc-shaped plate, 212 conductive spring, 213 slide block, 214 filter screen, 216 one-way pipe I, 217 communicating pipe, 218 box, 219 cylinder, 301 first rack, 302 pinion, 303 toothed plate, 304 rectangular groove, 401 annular toothed belt, 402 first gear, 403 second rod, 404 driving wheel, 405 driven wheel, 406 conveyor belt, 501 empty groove, 502 top plate, 503 sliding groove, 504 second spring, 505 collecting box and 6 motor.

Detailed Description

Referring to fig. 1-5, a numerical control punch waste collecting device comprises a base 1, wherein the base 1 is of a U-shaped structure, and a collecting mechanism is rotatably connected to the base 1;

the collecting mechanism comprises a first rod 201 which is rotatably connected in a base 1, a cylinder 219 and a face cam 202 are sequentially fixed on the side wall of the first rod 201, three box bodies 218 are uniformly distributed and fixed on the cylinder 219 along the circumferential direction, a plurality of elastic air bags 207 are fixed on the inner wall of the box bodies 218, an arc-shaped plate 211 is fixed at one end of each elastic air bag 207, a plurality of cavities 208 are formed in the inner wall of each arc-shaped plate 211, picking rods 209 are connected to the inner wall of each cavity 208 in a penetrating and sealing and sliding mode, sliding cavities 210 are symmetrically formed in the inner wall of each box body 218, sliding blocks 213 are elastically connected in the sliding cavities 210 through conductive springs 212, the inner wall of the upper end of each sliding cavity 210 is fixedly communicated with the cavity 208 through a hose, a filter screen 214 is fixed on the inner wall of the bottom of each box body 218, a sucking and removing mechanism for collecting punched scraps is arranged on the inner wall of the base 1, a moving block 204 is connected in a sealing and sliding mode, and an L-shaped rod 205 is fixed on the side wall of the moving block 204, one end of the L-shaped rod 205 penetrating through the first box 203 is rotatably connected with a matching wheel 206, the L-shaped rod 205 is elastically connected with the inner wall of the first box 203 through a first spring, the inner wall of the first box 203 close to the cylinder 219 is fixedly communicated with an elastic air bag 207 through a communicating pipe 217, after the punching operation is finished, the conductive spring 212 is electrified through a controller, and the conductive spring 212 contracts to drive the sliding block 213 to slide upwards and hermetically along the inner wall of the sliding cavity 210, so that the toothed plate 303 moves horizontally and abuts against the inner side wall of the box body 218 to enable the interior of the box body 218 to be in a closed state, on the other hand, the sliding block 213 extrudes part of the gas in the sliding cavity 210 into the cavity 208 through a hose, the compressed gas pushes the picking rod 209 to slide in the cavity 208 in a sealing way, the picking rod 209 is inserted into the waste material, make adjacent waste material motion and produce the space, be convenient for pile up the sweeps on the waste material and drop, make things convenient for follow-up absorption to the sweeps to collect.

The suction mechanism is including seting up the three suction chamber at cylinder 219 inner wall, every suction chamber all through a plurality of one-way pipe I216 and the fixed intercommunication of a box body 218 that corresponds, suction intracavity sliding connection has the screen frame, the inner wall that conductive spring 212 was kept away from to smooth chamber 210 passes through one-way pipe II and the fixed intercommunication of suction chamber, when slider 213 upwards sealed the slip in smooth chamber 210, still can take out the negative pressure to the suction chamber through one-way pipe II, make the suction chamber inhale the suction intracavity through the sweeps that a plurality of one-way pipe I216 screened by filter screen 214 in with first box body 218, collect by the screen frame, the screen frame can conveniently be taken out.

The side wall of the base 1 is fixed with a motor 6, the output end of the motor 6 is coaxially fixed with the first rod 201, the first box 203 is loaded with hydraulic oil near the communicating pipe 217, the matching wheel 206 is abutted to the face cam 202 to slide, the inner wall of the box 218 is provided with a plurality of grooves, each elastic air bag 207 is fixed in a corresponding groove, the face cam 202 is in a right trapezoid structure when viewed from the side, a sliding block 213 is hermetically and slidably connected in a sliding cavity 210, the motor 6 drives the first rod 201, a cylinder 219 and the face cam 202 to rotate for a plurality of circles, under the elastic action of a first spring, the matching wheel 206 is always abutted to slide with the face cam 202, and further when the face cam 202 rotates, the matching wheel 206 and an L-shaped rod 205 drive a moving block 204 to hermetically and reciprocally slide in the first box 203, and further the moving block 204 extrudes the hydraulic oil in the first box 203 into the elastic air bag 207 through the communicating pipe 217 and then extracts the hydraulic oil, causing the elastic bladder 207 to intermittently elongate and shorten.

The collecting mechanism further comprises a second rod 403 rotatably connected to the inner wall of the base 1, a first gear 402 is fixed on the side wall of the second rod 403, an annular toothed belt 401 is fixed on the side wall of the face cam 202, the annular toothed belt 401 is meshed with the first gear 402, a driving wheel 404 is fixed on the side wall of the second rod 403, a driven wheel 405 is rotatably connected to the side wall of the base 1, the driving wheel 404 is connected with the driven wheel 405 through a transmission belt 406, the transmission belt 406 is positioned right below the box 218, the width of the transmission belt 406 is larger than that of the box 218, after the face cam 202 rotates, the first gear 402 is driven to rotate through the annular toothed belt 401, the second rod and the driving wheel 404 are driven to rotate by the first gear 402, the driving wheel 404 drives the transmission belt 406 to move through the driven wheel 405, after the plurality of arc plates 11 are extruded, the conductive spring 403 and the motor 6 are powered off through the controller, so that the extruded waste materials in the box 218 fall onto the transmission belt 406, and falls through the transport by the conveyor belt 406 into a collection box 505.

The collecting mechanism further comprises a sliding groove 503 arranged on the inner wall of the base 1, a plurality of second springs 504 are fixed on the inner side wall of the sliding groove 503, a collecting box 505 is connected in the sliding groove 503 in a sliding manner, a hollow groove 501 is formed in the inner side wall, away from the second springs 504, of the sliding groove 503, a top plate 502 is connected in the hollow groove 501 in a sealing and sliding manner, the hollow groove 501 is fixedly communicated with the inner wall, away from the communicating pipe 217, of the first box body 203 through a one-way pipe III, a second one-way air outlet hole is formed in the inner wall of the hollow groove 501, when the moving block 204 slides in the first box body 203 in a sealing manner, air is extruded into the hollow groove 501 through the one-way pipe III, so that the air pushes the top plate 502 to slide in a sealing manner, the top plate 502 continuously impacts the collecting box 505, the collecting box 505 elastically collides with the second springs 504, so that the collecting box 505 shakes left and right, wastes extruded in the collecting box 505 shake, space occupied by the wastes in the collecting box 505 is further reduced, the loading capacity of the collecting cassette 505 is improved.

The collection mechanism is still including offering the rectangular channel 304 at box 218 top wall, the internal rotation of rectangular channel 304 is connected with pinion 302, the slider 213 top wall is fixed with first rack 301, there is pinion 303 rectangular channel 304 inner wall through sliding connection, pinion 303 and the setting of first rack 301 dislocation, pinion 303 and pinion 302 mesh, first rack 301 and pinion 302 mesh, through switching on and switching off the power supply to electrically conductive spring 212, accessible slider 213, first rack 301 and pinion 302 drive pinion 303 and move, and then seal and open box 218 inner space through pinion 303.

The inner wall of the cavity 208 is provided with a first air release hole, and the inner walls of the two ends of the sliding cavity 210 are respectively provided with a first one-way air inlet hole and a first one-way air outlet hole.

In the invention, the motor 6 and the conductive spring 212 are respectively electrically connected with an external controller, when an aluminum plate, an aluminum-zinc-coated plate or a stainless steel plate is punched, the output end of the motor 6 and the first rod 201 are driven by the controller to rotate by different angles according to the material of different plates, so that one of the first box bodies 218 is in a vertical state, waste materials and scraps falling from the punched holes enter the first box body 218 together, after the punching operation is finished, the conductive spring 212 is electrified through the controller, and then the conductive spring 212 contracts to drive the sliding block 213 to slide upwards and hermetically along the inner wall of the sliding cavity 210, on one hand, the toothed plate 303 horizontally moves and abuts against the inner side wall of the box body 218, so that the inside of the box body 218 is in a closed state, on the other hand, the sliding block 213 extrudes part of gas in the sliding cavity 210 into the cavity 208 through a hose, and then the compressed gas pushes the picking rod 209 to slide hermetically in the cavity 208, choose stick 209 to insert in the waste material for adjacent waste material motion and production space are convenient for pile up the sweeps on the waste material and drop, make things convenient for follow-up absorption to the sweeps to collect.

In addition, when the sliding block 213 slides upwards in the sliding cavity 210 in a sealing manner, negative pressure is pumped in the absorption cavity through the one-way pipe II, so that the absorption cavity sucks the scraps screened by the filter screen 214 in the first box body 218 into the absorption cavity through the one-way pipes I216, the scraps are collected by the filter screen frame, and the filter screen frame can be conveniently taken out and cleaned.

Then the controller makes the motor 6 drive the first rod 201, the cylinder 219 and the face cam 202 to rotate for several circles, under the elastic action of the first spring, the matching wheel 206 always pushes against the face cam 202 to slide, and then the face cam 202 rotates, the matching wheel 206 and the L-shaped rod 205 drive the moving block 204 to slide in the first box 203 in a sealing and reciprocating manner, and then the moving block 204 extrudes the hydraulic oil in the first box 203 into the elastic air bag 207 through the communicating pipe 217, and then the hydraulic oil is extracted out, so that the elastic air bag 207 intermittently extends and shortens, preferably, the elastic air bag 207 only extends or shortens along the same direction, and then the plurality of elastic air bags 207 all drive the corresponding arc-shaped plates 211 to extrude the waste materials from different angles, thereby reducing the occupied space of the waste materials, increasing the collection amount of the collection box 505, and improving the collection and transportation capacity of the waste materials at the later stage, which needs to be noted, in this process, choose excellent 209 also will receive external extrusion force, and be equipped with the relief valve in the first snuffle hole, and then make the gaseous downthehole discharge of first snuffle of follow in the cavity 208, choose excellent 209 and retract under the extrusion of waste material, play the guard action to choosing excellent 209.

And when face cam 202 rotated the back, drive first gear 402 through annular toothed belt 401 and rotate, and then first gear 402 drives second pole 403 and action wheel 404 and rotates for action wheel 404 drives the conveyer belt 406 motion through following driving wheel 405, when a plurality of arcs 11 accomplish the extrusion operation after, successively cut off the power supply to conducting spring 212 and motor 6 through the controller, make the waste material after the extrusion in box body 218 drop on conveyer belt 406, and then the transportation through conveyer belt 406 drops in collecting box 505.

When the moving block 204 slides in the first box 203 in a sealing manner, the gas is extruded into the empty slot 501 through the one-way pipe III, so that the gas pushes the top plate 502 to slide in a sealing manner, the top plate 502 continuously impacts the collecting box 505, the collecting box 505 elastically collides with the second spring 504, the collecting box 505 shakes right and left, waste materials extruded in the collecting box 505 shakes, the space occupied by the waste materials in the collecting box 505 is further reduced, and the loading capacity of the collecting box 505 is improved.

Claims

1. A numerical control punch waste collecting device comprises a base (1), wherein the base (1) is of a U-shaped structure, and is characterized in that a collecting mechanism is rotatably connected to the base (1);

the collecting mechanism comprises a first rod (201) which is rotatably connected in a base (1), wherein a cylinder (219) and a face cam (202) are sequentially fixed on the side wall of the first rod (201), three box bodies (218) are uniformly distributed along the circumferential direction on the cylinder (219), a plurality of elastic air bags (207) are fixed on the inner wall of each box body (218), an arc plate (211) is fixed at one end of each elastic air bag (207), a plurality of cavities (208) are formed in the inner wall of each arc plate (211), a picking rod (209) is connected to the inner wall of each cavity (208) in a penetrating, sealing and sliding mode, sliding cavities (210) are symmetrically formed in the inner wall of each box body (218), sliding blocks (213) are elastically connected in the sliding cavities (210) through conductive springs (212), the inner wall of the upper ends of the sliding cavities (210) is fixedly communicated with the cavities (208) through hoses, and filter screens (214) are fixed on the inner wall of each box body (218), box body (218) bottom inner wall is equipped with the absorption mechanism that collects the sweeps that punches a hole, base (1) inside wall is fixed with first box (203), first box (203) inner seal sliding connection has shifting block (204), shifting block (204) lateral wall is fixed with L shape pole (205), the one end swivelling joint that first box (203) was run through in L shape pole (205) has cooperation wheel (206), L shape pole (205) are through first spring and first box (203) inner wall elastic connection, the inner wall that first box (203) is close to cylinder (219) is through communicating pipe (217) and elastic airbag (207) fixed intercommunication.

2. The scrap collecting device for the numerical control punch press according to claim 1, wherein the suction mechanism comprises three suction chambers formed on the inner wall of the cylinder (219), each suction chamber is fixedly communicated with a corresponding box body (218) through a plurality of one-way pipes I (216), a filter screen frame is slidably connected in the suction chambers, and the inner wall of the sliding chamber (210) far away from the conductive spring (212) is fixedly communicated with the suction chambers through one-way pipes II.

3. The numerical control punch press waste collection device of claim 2, wherein a motor (6) is fixed on a side wall of the base (1), an output end of the motor (6) is coaxially fixed with the first rod (201), hydraulic oil is loaded in the first box body (203) close to the communicating pipe (217), the matching wheel (206) slides against the face cam (202), a plurality of grooves are formed in an inner wall of the box body (218), each elastic air bag (207) is fixed in a corresponding groove, the face cam (202) is in a right-angled trapezoid structure when viewed from the side, and the sliding block (213) is in sealed sliding connection in the sliding cavity (210).

4. A waste collecting device for a numerical control press according to claim 3, wherein the collecting mechanism further comprises a second rod (403) rotatably connected to the inner wall of the base (1), a first gear (402) is fixed to the side wall of the second rod (403), an annular toothed belt (401) is fixed to the side wall of the face cam (202), the annular toothed belt (401) is meshed with the first gear (402), a driving wheel (404) is fixed to the side wall of the second rod (403), a driven wheel (405) is rotatably connected to the side wall of the base (1), the driving wheel (404) and the driven wheel (405) are connected through a conveying belt (406), the conveying belt (406) is located at a position right below the box body (218), and the width of the conveying belt (406) is greater than that of the box body (218).

5. The numerical control punch press waste collection device of claim 4, wherein the collection mechanism further comprises a chute (503) formed in an inner wall of the base (1), a plurality of second springs (504) are fixed on an inner side wall of the chute (503), a collection box (505) is slidably connected in the chute (503), a hollow groove (501) is formed in the inner side wall, away from the second springs (504), of the chute (503), a top plate (502) is slidably connected in the hollow groove (501) in a sealing manner, the hollow groove (501) is fixedly communicated with the inner wall, away from the communication pipe (217), of the first box body (203) through a one-way pipe III, and a second one-way air outlet is formed in the inner wall of the hollow groove (501).

6. The scrap collecting device for the numerical control punch press according to claim 5, wherein the collecting mechanism further comprises a rectangular groove (304) formed in the top wall of the box body (218), the pinion (302) is rotatably connected in the rectangular groove (304), the top wall of the sliding block (213) is fixedly provided with a first rack (301), the inner wall of the rectangular groove (304) is connected with a toothed plate (303) in a penetrating and sliding manner, the toothed plate (303) and the first rack (301) are arranged in a staggered manner, the toothed plate (303) is meshed with the pinion (302), and the first rack (301) is meshed with the pinion (302).

7. The waste collecting device of numerical control press as claimed in claim 1, wherein the inner wall of said cavity (208) is opened with a first air release hole, and the inner walls of both ends of said sliding cavity (210) are opened with a first one-way air inlet hole and a first one-way air outlet hole, respectively.