CN112642531A

CN112642531A - Waste recovery system for plastic cup forming machine

Info

Publication number: CN112642531A
Application number: CN202011612991.0A
Authority: CN
Inventors: 李卫国; 尚晓宝; 王娴
Original assignee: Huanggang Shuangjian Packaging Co ltd
Current assignee: Huanggang Shuangjian Packaging Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-13

Abstract

The application relates to a waste recovery system for a plastic cup forming machine, and relates to a waste recovery device of the forming machine. The waste recovery system comprises a traction device, a crushing device, an air conveying device, a separating device and a collecting device which are sequentially arranged, wherein the crushing device is used for crushing waste, the air conveying device is used for conveying the crushed waste, the separating device is used for separating the crushed waste and air, and the collecting device is used for collecting the separated crushed waste; draw gear includes stand, guide roll, carry over pinch rolls, swing support and driving piece, the stand sets up in the breaker top, the guide roll rotates with the stand to be connected, swing support one end and guide roll fixed connection, the carry over pinch rolls rotates with the swing support other end to be connected, the axis of guide roll and carry over pinch rolls is parallel, the driving piece is used for driving the swing support around the reciprocal swing of axis of rotation of guide roll. This application has the effect that improves the recovery efficiency of waste material.

Description

Waste recovery system for plastic cup forming machine

Technical Field

The application relates to a waste recovery device of a forming machine, in particular to a waste recovery system for a plastic cup forming machine.

Background

The forming process is mainly characterized in that thermoplastic plastic sheets such as PVC, PET, PETG, APTT, PP, PE, PS and the like which are heated and softened are subjected to vacuum forming by a vacuum suction force generated by a vacuum pump through a mould to form vacuum covers in various shapes or are attached to the surfaces of products in various shapes. The blister is divided into a thin blister and a thick blister according to the thickness of the sheet. The plastic suction molding equipment comprises a clamping system, a heating system, a vacuum and compressed air system, a molding mold and the like.

The related art discloses a full-automatic multistation plastic sheet make-up machine, including frame and the sheet transport mechanism of setting in the frame, still be equipped with unwinding mechanism, heating mechanism, forming mechanism, the mechanism of punching a hole, die-cutting mechanism, finished product feeding mechanism and winding mechanism in the frame in proper order, its characterized in that: finished product feeding mechanism is including conveyor and pile up the device, piles up the device setting in the conveyor top, pile up the device including elevating platform, adsorption element and driver part, the elevating platform is gone up and down by the driver part transmission, and a plurality of adsorption element set up on the elevating platform, conveyor and pile up still are equipped with between the device and hold in the palm the material part, hold in the palm and be equipped with the finished product on the material part and fall the mouth, adsorption element can move and stretch into the finished product and fall a mouthful to conveyor, it is equipped with the material part to hold in the palm material part both sides top.

In view of the above-mentioned related art, the forming machine merely stacks and collects finished products, but is inconvenient to recycle waste materials, and the inventor believes that there is a defect of low waste material recycling efficiency.

Disclosure of Invention

In order to improve the recovery efficiency of waste materials, the application provides a waste material recovery system for a plastic cup forming machine.

The application provides a waste recovery system for plastics cup make-up machine adopts following technical scheme:

a waste recovery system for a plastic cup forming machine comprises a traction device, a crushing device, an air conveying device, a separating device and a collecting device which are sequentially arranged, wherein the crushing device is used for crushing waste materials, the air conveying device is used for conveying the crushed waste materials, the separating device is used for separating the crushed waste materials from air, and the collecting device is used for collecting the separated crushed waste materials;

draw gear includes stand, guide roll, carry over pinch rolls, swing support and driving piece, the stand sets up in the breaker top, the guide roll rotates with the stand to be connected, swing support one end and guide roll fixed connection, the carry over pinch rolls rotates with the swing support other end to be connected, the axis of guide roll and carry over pinch rolls is parallel, the driving piece is used for driving the swing support around the reciprocal swing of axis of rotation of guide roll.

By adopting the technical scheme, the waste materials after plastic suction molding are hollow sheets, the waste materials sequentially pass through the lower part of the guide roller and then are wound on the upper part of the traction roller and then enter the crushing device for crushing, and the sheets and the waste materials move intermittently during molding of the molding machine, so that the driving piece drives the swing bracket to swing up and down and further drives the traction roller to swing up and down, so that the waste materials and the sheets of the molding machine synchronously move, the molding machine is not influenced, and the waste materials can stably enter the crushing device; broken waste material passes through the pneumatic conveyor and sends separator, and the broken waste material after being separated gets into collection device, carries out recycle, because waste recovery system is synchronous with the make-up machine, can improve the recovery efficiency of waste material.

Optionally, still including the controlling means who is used for controlling driving piece action, controlling means includes swing piece, proximity switch and controller, swing piece and guide roll's pivot fixed connection, proximity switch's one end is towards swing piece, proximity switch is connected with the stand, proximity switch is connected with the controller electricity, the controller is used for controlling the driving piece action.

Through adopting above-mentioned technical scheme, proximity switch passes through the position of response swing piece, gives the controller with signal transmission, and the controller control driving piece drive swing support swing drives the swing piece swing through the guide roll, and proximity switch transmits the position signal of swing piece for the controller once more to the control driving piece drives the carry over pinch rolls reciprocal swing.

Optionally, breaker includes broken fill, two feed rollers, two crushing rollers, screen cloth, cushion, vibrating motor, drive feed roller pivoted drive assembly and drive crushing roller pivoted runner assembly, two the feed roller rotates with broken fill inner wall to be connected, two the crushing roller is located the below of feed roller, two the crushing roller rotates with broken fill inner wall to be connected, screen cloth and broken fill inner wall sliding connection just are located one side that the feed roller was kept away from to the crushing roller, the slip direction of screen cloth is on a parallel with the feed direction, the cushion is connected between screen cloth and broken fill inner wall, the deformation direction of cushion is the same with the slip direction of screen cloth, vibrating motor is connected with the lower surface of screen cloth.

Through adopting above-mentioned technical scheme, the waste material gets into broken back of fighting, through two feed rollers, drive assembly drive feed roller rotates, drives the waste material again and gets into between two crushing rollers, and the runner assembly drives the crushing roller and rotates and smash the waste material, and the waste material after the breakage is when the screen cloth, and vibrating motor drives the screen cloth vibration to sieve the waste material, the qualified waste material of particle diameter is sent away by the pneumatic conveying device through the screen cloth, and the great waste material of particle diameter continues to be smashed by the crushing roller, improves the recovery efficiency of waste material.

Optionally, the air supply device comprises a fan and a conveying pipe, an air inlet of the fan is communicated with a discharge port of the crushing hopper, an air outlet of the fan is communicated with the conveying pipe, and the conveying pipe conveys the crushed waste materials to the separation device.

Through adopting above-mentioned technical scheme, the conveyer pipe is sent to with the waste material when the fan operation, sends separator to again and separates.

Optionally, the separating device comprises a cyclone separator, a filter screen, an exhaust pipe and a dust removal cloth pipe, wherein one end of the conveying pipe, away from the fan, is communicated with the feed inlet of the cyclone separator, the exhaust pipe is communicated with the exhaust port of the cyclone separator, the filter screen is positioned between the conveying pipe and the exhaust pipe, the filter screen is connected with the inner wall of the cyclone separator, one end of the dust removal cloth pipe is communicated with one end of the exhaust pipe, away from the cyclone separator, and the other end of the dust removal cloth pipe, away from the exhaust pipe, is sealed.

Through adopting above-mentioned technical scheme, after air and waste material got into cyclone, high density waste material sinks and arranges to collection device from cyclone's discharge gate, and the air that contains a small amount of dust gets into the blast pipe after the filtration of filter screen, reentrant dust removal stringing, and after the secondary filtration of dust removal stringing, the dust is stayed in the dust removal stringing, and clean air discharges, is convenient for quickly separating gas and waste material.

Optionally, an opening is formed in the top end of the exhaust pipe, a cover plate is detachably connected to the opening, and the filter screen is detachably connected with the cyclone separator.

By adopting the technical scheme, the filter screen is easy to block after a period of time, and the filter screen can be detached to be cleaned or replaced after the cover plate is opened.

Optionally, the collecting device comprises a collecting box, a collecting hopper, a valve and a discharging pipe, the discharging port of the cyclone separator is communicated with the top of the collecting box, the collecting hopper is connected with the inner wall of the collecting box, one end of the discharging pipe is communicated with the outlet of the collecting hopper, and the valve is connected between the collecting hopper and the discharging pipe.

Through adopting above-mentioned technical scheme, broken waste material gets into in the collection fill through the collection of collecting box, opens the valve back, and broken waste material gets into the discharging pipe, collect in the export of discharging pipe can, be convenient for collect broken waste material.

Optionally, one side of the collecting box close to the discharge pipe is provided with a plurality of support rods, and the support rods are used for hanging packaging bags containing broken waste materials.

Through adopting above-mentioned technical scheme, when collecting broken waste material, hang the wrapping bag on the bracing piece, wrapping bag is stretched into to discharging pipe one end, fills the back when the wrapping bag, takes away the wrapping bag and changes empty wrapping bag, realizes retrieving in succession, improves recovery efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the waste materials sequentially pass through the lower part of the guide roller and then are wound on the upper part of the traction roller and then enter the crushing device for crushing, the driving piece drives the swing bracket to swing up and down so as to drive the traction roller to swing up and down, so that the waste materials and sheets of the forming machine move synchronously, the forming of the forming machine is not influenced, and the waste materials can stably enter the crushing device; the broken waste materials are conveyed to the separating device through the air conveying device, the separated broken waste materials enter the collecting device for recycling, and the waste material recycling system and the forming machine are synchronous, so that the recycling efficiency of the waste materials can be improved;

2. through the arrangement of the screen and the vibrating motor, after the waste materials enter the crushing hopper, the waste materials pass through the two feeding rollers, the driving assembly drives the feeding rollers to rotate and then drives the waste materials to enter the space between the two crushing rollers, the rotating assembly drives the crushing rollers to rotate to crush the waste materials, when the crushed waste materials pass through the screen, the vibrating motor drives the screen to vibrate, so that the waste materials are screened, the waste materials with qualified particle sizes are conveyed away through the screen by the air conveying device, the waste materials with larger particle sizes are continuously crushed by the crushing rollers, and the recovery efficiency of the waste materials is improved;

3. through setting up separator, after air and waste material got into cyclone, high density waste material sinks and arranges to collection device from cyclone's discharge gate, and the air that contains a small amount of dust gets into the blast pipe after the filtration of filter screen, reentrant dust removal stringing, and after the secondary filtration of dust removal stringing, the dust is stayed in the dust removal stringing, and clean air discharges, is convenient for quickly separating gas and waste material.

Drawings

Fig. 1 is a schematic structural diagram of a waste recovery system for a plastic cup molding machine according to an embodiment of the present application.

Fig. 2 is a schematic structural view of the traction device.

Fig. 3 is a schematic view of the structure of the crushing apparatus.

Fig. 4 is a partial cross-sectional view of a crushing device.

Fig. 5 is a schematic structural view of the air supply device and the separation device.

Fig. 6 is a partial cross-sectional view of the separation device.

Fig. 7 is a schematic view of the structure of the collecting device.

Description of reference numerals: 1. a traction device; 101. a column; 102. a guide roller; 103. a traction roller; 104. a swing bracket; 105. a drive member; 2. a crushing device; 21. a crushing hopper; 22. a feed roller; 23. a crushing roller; 24. screening a screen; 25. an elastic pad; 26. a vibration motor; 27. a drive assembly; 271. a drive motor; 272. a driving gear; 273. a driven gear; 28. a rotating assembly; 281. rotating the motor; 282. a main gear; 283. a pinion gear; 3. an air conveying device; 31. a fan; 32. a delivery pipe; 4. a separation device; 41. a cyclone separator; 42. a filter screen; 43. an exhaust pipe; 44. dust removal cloth pipes; 5. a collection device; 51. a collection box; 52. a collecting hopper; 53. a valve; 54. a discharge pipe; 6. a control device; 61. a swing block; 62. a proximity switch; 63. a controller; 7. a guide ring; 8. a traction ring; 9. a protective cover; 10. a cover plate; 11. a support bar; 12. a reinforcing strip; 13. and (7) supporting legs.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a waste recovery system for a plastic cup forming machine. Referring to fig. 1, the waste recycling system comprises a traction device 1, a crushing device 2, an air conveying device 3, a separating device 4 and a collecting device 5 which are sequentially arranged, the waste after plastic suction forming is a hollowed-out sheet, the traction device 1 is used for drawing the waste, the crushing device 2 is used for crushing the waste, the air conveying device 3 is used for conveying the crushed waste, the separating device 4 is used for separating the crushed waste and air, and the collecting device 5 is used for collecting the separated crushed waste.

Referring to fig. 2, the traction device 1 includes a vertical column 101, guide rollers 102, traction rollers 103, swing brackets 104 and driving members 105, the vertical column 101 has two parts and is located above the crushing device 2, two ends of the guide rollers 102 are rotatably connected with the vertical column 101 through bearings, the guide rollers 102 are horizontally arranged, the swing brackets 104 are provided with two parts and are rectangular, the two swing brackets 104 are located at two ends of the guide rollers 102, one end of the swing bracket 104 is welded with the end part of the guide roller 102, the length direction of the swing bracket 104 is perpendicular to the axial direction of the guide rollers 102, two ends of the traction rollers 103 are rotatably connected with the swing bracket 104 through bearings, the axial lines of the guide rollers 102 and the traction rollers 103 are parallel, the driving members 105 are used for driving the swing bracket 104 to swing up and down and back and forth around the rotation axis of the guide rollers 102, the driving members 105 are air cylinders, in another embodiment, the, traction roller 103 both ends all weld the traction ring 8 of coaxial setting, and the probability of waste material off tracking can be reduced to guide ring 7 and traction ring 8. When the forming machine is used for forming, the sheet material intermittently moves, and the waste material also intermittently moves, so that the driving piece 105 drives the swing bracket 104 to swing up and down, and further drives the traction roller 103 to swing up and down, so that the waste material and the sheet material of the forming machine synchronously move, the forming of the forming machine is not influenced, and the waste material is favorably and stably fed into the crushing device 2; broken waste material passes through pneumatic means 3 and sends separator 4, and the broken waste material after being separated gets into collection device 5, carries out recycle, because waste recovery system is synchronous with the make-up machine, can improve the recovery efficiency of waste material.

Referring to fig. 2, the scrap recycling system further includes a control device 6 for controlling the driving member 105 to operate, the control device 6 includes a swinging block 61, a proximity switch 62 and a controller 63, the swinging block 61 is rectangular, one end of a rotating shaft of the guide roller 102 penetrates through the upright column 101 and is rotatably connected with the upright column 101, the swinging block 61 and one end of the rotating shaft of the guide roller 102 penetrate through the upright column 101 and are welded, one end of the proximity switch 62 faces the swinging block 61, the proximity switch 62 is vertically arranged, the proximity switch 62 is connected with the upright column 101 through a bolt, the controller 63 is a PLC controller 63, the proximity switch 62 is electrically connected with the controller 63, and the controller 63 is used for controlling the driving member 105 to operate. The proximity switch 62 senses the position of the swing block 61 and transmits a signal to the controller 63, the controller 63 controls the driving piece 105 to drive the swing bracket 104 to swing, the swing block 61 is driven to swing through the guide roller 102, the proximity switch 62 transmits the position signal of the swing block 61 to the controller 63 again, and therefore the driving piece 105 is controlled to drive the traction roller 103 to swing in a reciprocating mode.

Referring to fig. 3 and 4, the crushing device 2 comprises a crushing bucket 21, two feed rollers 22, two crushing rollers 23, a screen 24, cushion 25, vibrating motor 26, drive feed roller 22 pivoted drive assembly 27 and drive crushing roller 23 pivoted runner assembly 28, the bottom of stand 101 and the upper surface welding of broken fill 21, the cylinder body of driving piece 105 is articulated with the top of broken fill 21, the piston rod of driving piece 105 is articulated with the middle part of swing bracket 104, the articulated axis at driving piece 105 both ends is parallel with guide roll 102's axis, two feed rollers 22 pass through the bearing rotation with broken fill 21 inner wall and are connected, two feed rollers 22 level and interval set up, two crushing rollers 23 are located the below of feed roller 22, two crushing rollers 23 pass through the bearing rotation with broken fill 21 inner wall and are connected, two crushing rollers 23 interval sets up, crushing roller 23 is parallel with the axis of feed roller 22. The driving assembly 27 comprises a driving motor 271, a driving gear 272 and a driven gear 273, the shell of the driving motor 271 is connected with the outer wall of the crushing hopper 21 through a bolt, the driving gear 272 is connected with the rotating shaft key of the driving motor 271, the rotating shaft of the driving motor 271 is connected with the rotating shaft of one of the feeding rollers 22 through a coupler, the driven gear 273 is connected with the rotating shaft key of the other feeding roller 22, and the driving gear 272 is meshed with the driven gear 273. The rotating assembly 28 comprises a rotating motor 281, a main gear 282 and a secondary gear 283, the shell of the rotating motor 281 is connected with the outer wall of the crushing hopper 21 through bolts, the main gear 282 is in key connection with the rotating shaft of the rotating motor 281, the rotating shaft of the rotating motor 281 is connected with the rotating shaft of one crushing roller 23 through a coupler, the secondary gear 283 is in key connection with the rotating shaft of the other crushing roller 23, and the main gear 282 is meshed with the secondary gear 283. The screen mesh 24 and the crushing bucket 21 inner wall sliding connection just are located one side that the feed roller 22 was kept away from to crushing roller 23, the screen mesh 24 level sets up, the slip direction of screen mesh 24 is on a parallel with the direction of feed, cushion 25 is made for rubber materials, cushion 25 is cylindrical, cushion 25 passes through bolted connection between screen mesh 24 and the crushing bucket 21 inner wall, the deformation direction of cushion 25 is the same with the slip direction of screen mesh 24, vibrating motor 26 passes through bolted connection with the lower surface of screen mesh 24, be provided with safety cover 9 around vibrating motor 26, safety cover 9 passes through bolted connection with screen mesh 24. After the waste material got into broken hopper 21, through two feed rollers 22, driving motor 271 drive feed roller 22 rotates, it gets into between two crushing rollers 23 to drive the waste material again, it drives crushing roller 23 and rotates the waste material breakage to rotate motor 281, the waste material after the breakage is when screen cloth 24, vibrating motor 26 drives the vibration of screen cloth 24, thereby sieve the waste material, the qualified waste material of particle diameter is sent away by pneumatic conveying device 3 through screen cloth 24, the great waste material of particle diameter continues to be smashed by crushing roller 23, the recovery efficiency of waste material is improved.

Referring to fig. 5 and 6, the air supply device 3 includes a blower 31 and a delivery pipe 32, an air inlet of the blower 31 is communicated with a discharge port of the crushing hopper 21, an air outlet of the blower 31 is communicated with the delivery pipe 32, and the delivery pipe 32 delivers the crushed waste material to the separation device 4. The fan 31 is operated to feed the waste material to the duct 32 and then to the separating apparatus 4 for separation. Separator 4 includes cyclone 41, filter screen 42, blast pipe 43, dust removal stringing 44, the one end that fan 31 was kept away from to conveyer pipe 32 communicates with cyclone 41's feed inlet, blast pipe 43 communicates with cyclone 41's gas vent, filter screen 42 is located between conveyer pipe 32 and blast pipe 43, blast pipe 43 top is equipped with the opening, there is apron 10 at the opening part through bolted connection, filter screen 42 passes through bolted connection with cyclone 41 inner wall, cyclone 41's one end intercommunication is kept away from to dust removal stringing 44 and blast pipe 43, dust removal stringing 44 passes through the clamp with blast pipe 43 and is connected, the one end that dust removal stringing 44 kept away from blast pipe 43 adopts rope ligature to seal, dust removal stringing 44 adopts the cloth that has the filtering action to make.

After the air and the waste material enter the cyclone separator 41, the high-density waste material sinks to be discharged to the collecting device 5 from the discharge port of the cyclone separator 41, the air containing a small amount of dust enters the exhaust pipe 43 after being filtered by the filter screen 42, then enters the dust-removing cloth pipe 44, the dust is left in the dust-removing cloth pipe 44 after being filtered again by the dust-removing cloth pipe 44, and the clean air is discharged to facilitate the rapid separation of the air and the waste material. After the filter screen 42 is clogged over a period of time, the filter screen 42 can be removed for cleaning or replacement after the cover plate 10 is opened.

Referring to fig. 7, the collecting device 5 includes a collecting box 51, a collecting hopper 52, a valve 53, and a discharging pipe 54, the collecting box 51 is rectangular, the discharging port of the cyclone separator 41 is communicated with the top of the collecting box 51, the top end of the collecting hopper 52 is welded to the inner wall of the collecting box 51, one end of the discharging pipe 54 is communicated with the outlet of the collecting hopper 52, the discharging pipe 54 is arranged obliquely downward, the valve 53 is a gate valve, and the valve 53 is connected between the collecting hopper 52 and the discharging pipe 54. Broken waste material gets into in the collection fill 52 through the collection of collecting box 51, opens valve 53 after, broken waste material gets into discharging pipe 54, collects at the export of discharging pipe 54 can, is convenient for collect broken waste material.

Referring to fig. 7, the welding of collection fill 52 bottom surface has four interval and the landing leg 13 of vertical setting, a side level that collecting box 51 is close to discharging pipe 54 is provided with 2 bracing pieces 11, bracing piece 11 one end passes through bolted connection with landing leg 13 lateral wall, the slope is provided with between bracing piece 11 and the landing leg 13 and strengthens strip 12, strengthen strip 12 one end and pass through bolted connection with landing leg 13, the other end passes through bolted connection with bracing piece 11, bracing piece 11 is used for hanging the wrapping bag of the broken waste material of splendid attire, the wrapping bag adopts ton bag. When collecting broken waste material, hang the rings of wrapping bag on bracing piece 11, discharging pipe 54 one end stretches into the wrapping bag, fills the back when the wrapping bag, takes away the wrapping bag and changes empty wrapping bag, realizes retrieving in succession, improves recovery efficiency.

The implementation principle of the waste recovery system for the plastic cup forming machine is as follows: waste materials sequentially pass below the guide roller 102 and are wound above the traction roller 103 and then enter between the two feeding rollers 22, the proximity switch 62 senses the position of the swinging block 61 and transmits signals to the controller 63, the controller 63 controls the driving piece 105 to drive the swinging support 104 to swing so as to drive the traction roller 103 to swing up and down, the guide roller 102 drives the swinging block 61 to swing, the proximity switch 62 transmits the position signals of the swinging block 61 to the controller 63 again, and therefore the driving piece 105 is controlled to drive the traction roller 103 to swing back and forth;

after the waste materials enter the crushing hopper 21, the waste materials pass through the two feeding rollers 22, the driving motor 271 drives the feeding rollers 22 to rotate and then drives the waste materials to enter between the two crushing rollers 23, the rotating motor 281 drives the crushing rollers 23 to rotate to crush the waste materials, when the crushed waste materials pass through the screen 24, the vibrating motor 26 drives the screen 24 to vibrate, so that the waste materials are screened, the waste materials with qualified particle sizes are sent away by the air conveying device 3 through the screen 24, and the waste materials with larger particle sizes are continuously crushed by the crushing rollers 23;

when the fan 31 is operated, the waste is conveyed to the conveying pipe 32, after the air and the waste enter the cyclone separator 41, the high-density waste sinks and is discharged to the collecting device 5 from the discharge port of the cyclone separator 41, the air containing a small amount of dust is filtered by the filter screen 42, enters the exhaust pipe 43 and then enters the dust-removing cloth pipe 44, after the air is filtered again by the dust-removing cloth pipe 44, the dust is remained in the dust-removing cloth pipe 44, and clean air is discharged;

hang the rings of wrapping bag on bracing piece 11, discharging pipe 54 one end stretches into the wrapping bag, and broken waste material gets into in collecting hopper 52 through the collection of collecting box 51, opens valve 53 back, and broken waste material gets into discharging pipe 54, gets into the wrapping bag again, and after the wrapping bag was filled, tak the wrapping bag and change empty wrapping bag, realize retrieving in succession, improve recovery efficiency.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A waste recovery system for a plastic cup forming machine, characterized in that: the waste material separating device comprises a traction device (1), a crushing device (2), an air conveying device (3), a separating device (4) and a collecting device (5) which are sequentially arranged, wherein the crushing device (2) is used for crushing waste materials, the air conveying device (3) is used for conveying the crushed waste materials, the separating device (4) is used for separating the crushed waste materials from air, and the collecting device (5) is used for collecting the separated crushed waste materials;

draw gear (1) includes stand (101), guide roll (102), carry over pinch rolls (103), swing support (104) and driving piece (105), stand (101) set up in breaker (2) top, guide roll (102) rotate with stand (101) and are connected, swing support (104) one end and guide roll (102) fixed connection, carry over pinch rolls (103) rotate with swing support (104) other end and are connected, the axis of guide roll (102) and carry over pinch rolls (103) is parallel, driving piece (105) are used for driving swing support (104) around the axis of rotation reciprocating swing of guide roll (102).

2. A scrap recycling system for a plastic cup forming machine, in accordance with claim 1, wherein: still including controlling means (6) that is used for controlling driving piece (105) to move, controlling means (6) are including swing piece (61), proximity switch (62) and controller (63), swing piece (61) and guide roll (102)'s pivot fixed connection, proximity switch (62) one end is towards swing piece (61), proximity switch (62) are connected with stand (101), proximity switch (62) are connected with controller (63) electricity, controller (63) are used for controlling driving piece (105) to move.

3. A scrap recycling system for a plastic cup forming machine, in accordance with claim 1, wherein: the crushing device (2) comprises a crushing hopper (21), two feeding rollers (22), two crushing rollers (23), a screen (24), an elastic cushion (25), a vibrating motor (26), a driving component (27) for driving the feeding rollers (22) to rotate and a rotating component (28) for driving the crushing rollers (23) to rotate, wherein the two feeding rollers (22) are rotatably connected with the inner wall of the crushing hopper (21), the two crushing rollers (23) are positioned below the feeding rollers (22), the two crushing rollers (23) are rotatably connected with the inner wall of the crushing hopper (21), the screen (24) is slidably connected with the inner wall of the crushing hopper (21) and positioned on one side of the crushing rollers (23) far away from the feeding rollers (22), the sliding direction of the screen (24) is parallel to the feeding direction, the elastic cushion (25) is connected between the screen (24) and the inner wall of the crushing hopper (21), and the deformation direction of the elastic cushion (25) is the same as the sliding direction of the screen (24), the vibration motor (26) is connected with the lower surface of the screen (24).

4. A scrap recycling system for a plastic cup forming machine, in accordance with claim 3, wherein: the air supply device (3) comprises a fan (31) and a conveying pipe (32), wherein an air inlet of the fan (31) is communicated with a discharge hole of the crushing hopper (21), an air outlet of the fan (31) is communicated with the conveying pipe (32), and the conveying pipe (32) conveys crushed waste materials to the separating device (4).

5. A scrap recycling system for a plastic cup forming machine, in accordance with claim 4, wherein: separator (4) include cyclone (41), filter screen (42), blast pipe (43), dust removal stringing (44), the one end that fan (31) were kept away from in conveyer pipe (32) and the feed inlet intercommunication of cyclone (41), the gas vent intercommunication of blast pipe (43) and cyclone (41), filter screen (42) are located between conveyer pipe (32) and blast pipe (43), filter screen (42) and cyclone (41) inner wall connection, the one end of dust removal stringing (44) and blast pipe (43) keep away from the one end intercommunication of cyclone (41), the one end that blast pipe (43) were kept away from in dust removal stringing (44) is sealed.

6. A scrap recycling system for a plastic cup forming machine, in accordance with claim 5, wherein: the top end of the exhaust pipe (43) is provided with an opening, the opening is detachably connected with the cover plate (10), and the filter screen (42) is detachably connected with the cyclone separator (41).

7. A scrap recycling system for a plastic cup forming machine, in accordance with claim 5, wherein: the collecting device (5) comprises a collecting box (51), a collecting hopper (52), a valve (53) and a discharging pipe (54), wherein the discharging port of the cyclone separator (41) is communicated with the top of the collecting box (51), the collecting hopper (52) is connected with the inner wall of the collecting box (51), one end of the discharging pipe (54) is communicated with the outlet of the collecting hopper (52), and the valve (53) is connected between the collecting hopper (52) and the discharging pipe (54).

8. A scrap recycling system for a plastic cup forming machine, in accordance with claim 7, wherein: one side of the collecting box (51) close to the discharge pipe (54) is provided with a plurality of supporting rods (11), and the supporting rods (11) are used for hanging packaging bags for containing broken waste materials.