CN118024458B - TPU film rim charge recycling and crushing equipment - Google Patents

Abstract

The present invention relates to the technical field of film edge material recycling and crushing, and discloses a TPU film edge material recycling and crushing device, including an air supply component installed on the outer side of a shell, and the feed component drives the air supply component through a crank structure. The air supply component of the present invention is arranged so that when the rotating shaft of the first driving roller rotates, the crank structure drives the air supply component to operate, and the air supply component supplies air to the shell on the one hand, and the airflow passes through the channel formed by the outer cover, and the air inlet enters the airflow, and a part of the airflow of the inclined plate blows out the crushed materials along the outlet, and the other part of the airflow blows to the other side of the inner wall of the shell along the arc, so that the airflow flows in a circular manner, and the airflow passes through the two crushing rollers to dissipate heat, and the heat is blown out through the outlet at the bottom of the shell, thereby reducing the loss of the cutting mechanism caused by the heat generated during cutting.

Description

A TPU film edge material recycling and crushing equipment

Technical Field

The invention relates to the technical field of film edge material recovery and crushing equipment, in particular to a TPU film edge material recovery and crushing equipment.

Background Art

Slitting machine is a mechanical device that cuts wide paper, mica tape or film into multiple narrow materials. It is commonly used in papermaking machinery, wire and cable mica tape and printing and packaging machinery. Slitting machine is mainly used for: non-woven fabrics; mica tape, paper, insulation materials and various film materials, especially suitable for narrow tape (non-woven fabrics, paper, insulation materials, mica tape, film, etc.). When the film is cut by the film slitting machine, there are side materials on both sides of the film, which need to be rolled up by the side corner winding device.

The Chinese patent specification with application number 2022108025196 discloses a film edge material recovery device for film slitting, including a support box and a first motor, the top and bottom ends of the support box are fixedly installed with first brackets, and winding elements are rotatably installed on the two first brackets; the present invention drives the winding element to rotate by a driving mechanism, and the winding element gradually winds up the film edge material when rotating. When more film edge material is wound on the winding element, the driving mechanism is separated from the winding element, and then the support box is driven to rotate by the first motor to make the two winding rollers exchange positions, and then the driving mechanism is controlled to be connected with the winding element located above for transmission, and then the film roll is cut off by the cutting mechanism, and then the driving mechanism continues to drive the winding element to wind up the film edge material, thereby realizing the disassembly of the film edge material roll without stopping for unloading, the edge material recovery efficiency is high, and it is more convenient to use.

Although such a setting can remove the film edge material roll without stopping the machine for unloading, the edge material recovery efficiency is high and it is more convenient to use. However, in the process of repeated cutting by the cutting mechanism, the tool in the cutting mechanism repeatedly cuts the edge material, which will generate a certain amount of heat. When the equipment operates for a long time, the heat will accumulate, and the high temperature and friction may cause the tool to wear more severely, reducing the cutting performance and life. Long-term high temperature may cause the components of the cutting mechanism to deform, affecting the accuracy and stability of the equipment.

Summary of the invention

The purpose of the present invention is to provide a TPU film edge material recovery and crushing device to solve the problems raised in the above background technology.

To solve the above technical problems, the present invention is achieved through the following technical solutions:

The present invention is a TPU film edge material recycling and crushing device, comprising a support assembly, the support assembly comprises a bracket, a driving assembly is installed on the outer side of the bracket, two crushing rollers are installed on the inner side of the bracket, a shell is arranged on the outer side of the two crushing rollers, the two crushing rollers are driven by the driving assembly, and a collecting box is installed at the bottom of the bracket;

A cleaning assembly is installed on the inner side of the shell, and the purpose of such arrangement is to clean the inside of the shell through the cleaning assembly, and the collection box is used to collect the debris;

Two mounting rods are installed at one end of the top of the bracket, a feeding assembly is installed between the two mounting rods, and the driving assembly drives the feeding assembly through a transmission structure.

An air supply assembly is installed on the outer side of the shell, and the feeding assembly drives the air supply assembly through a crank structure.

Furthermore, a base is fixedly connected to the outer wall of the bracket, the driving assembly includes a motor, the motor is installed on the upper surface of the base, the output shaft of the motor passes through the bracket and extends to a side away from the base, the output shaft of the motor is rotatably connected to the bracket, a driving gear is installed at the output end of the motor, a driven gear is meshed on the outer wall of the driving gear, the driven gear is rotatably connected to the outer wall of the bracket through a rotating shaft, the two crushing rollers are respectively installed on the output shaft of the motor and the rotating shaft of the driven gear, and cutting teeth are provided on the outer walls of the two crushing rollers;

The purpose of such arrangement is that the output shaft of the motor drives the driving gear to rotate, drives the driven gear to rotate, and thus drives the two crushing rollers to rotate.

Furthermore, the housing includes a shell, the shell is connected to the inner walls on both sides of the bracket, and the output shaft of the motor and the rotating shaft of the driven gear respectively penetrate the shell and are rotatably connected;

An air inlet is provided on an outer wall of one side of the shell close to the air supply assembly, the air inlet extends to the interior of the shell, and an inclined plate is connected to the bottom outer wall of the shell;

The top of the shell is provided with an inlet, and the bottom is provided with an outlet;

The purpose of this arrangement is that part of the airflow of the inclined plate blows out the crushed materials along the outlet, and the other part of the airflow follows the arc and blows to the other side of the inner wall of the shell, so that the airflow flows in a circular manner, the inlet is used for feeding, and the outlet is used for discharging.

Further, the feeding assembly comprises a first driving roller, which is rotatably connected between two mounting rods via a rotating shaft;

Two pulleys are installed on the outer wall of one end of the first driving roller, and a pulley is installed on the end of the driven gear close to the first driving roller. A first transmission belt is connected between the pulley of the driven gear and the pulley of the first driving roller, and the transmission structure consists of the first transmission belt, the second transmission belt and the pulley;

The purpose of such arrangement is that when the driven gear rotates, the pulley where the first driving roller is located and the first driving roller are driven to rotate through the pulley and the first transmission belt.

Furthermore, the inner walls on both sides of the top of the bracket are rotatably connected by a second driving roller, a pulley is installed on the outer wall of the rotating shaft of the second driving roller, and the pulley of the first driving roller is connected to the pulley of the second driving roller through a second transmission belt;

Two fixed blocks are installed on the upper surface of the bracket, a rotating rod is rotatably connected between the two fixed blocks, two connecting plates are connected to the outer wall of the rotating rod, a rotating wheel is rotatably connected between the two connecting plates, the rotating wheel and the surface of the second driving roller are close to each other, and the rotating wheel and the second driving roller are located at the top inlet of the shell;

The purpose of this arrangement is that when the pulley on which the first driving roller is located rotates, the pulley of the second driving roller and the second driving roller are driven to rotate through the second transmission belt, and the film edge material is transmitted through the first driving roller, and then through the friction transmission between the rotating wheel and the second driving roller, the film edge material is sent into the interior of the shell through the top inlet of the shell for crushing.

Further, the air supply assembly includes an outer cover, a fixed plate and a rotating shaft, the outer cover is installed between the inner walls on both sides, a plurality of fixed plates are installed on the outer wall of the rotating shaft, the fixed plates are rotatably connected between the outer cover and the inner walls on both sides of the bracket through the rotating shaft, and the fixed plates and the rotating shaft are driven by a crank structure;

The air inlet of the outer cover extends downward to the outside of the bracket, and the air outlet extends to the inside of the outer shell;

The purpose of this arrangement is to use the air supply component to supply air to the shell to dissipate the heat of the two crushing drums on the one hand, and on the other hand, through the air supply and the cleaning structure, the crushed materials remaining on the outer walls of the two crushing drums are blown out through the bottom outlet of the shell.

Further, the crank structure includes a second rotating disk, a third rotating disk and a rotating shaft, the rotating shaft of the first driving roller passes through the mounting rod and is rotatably connected to the mounting rod, the second rotating disk is mounted on the rotating shaft of the first driving roller, the rotating shaft passes through the inner wall of the bracket and extends to the outside, the third rotating disk is mounted on the outer wall of the rotating shaft, and the two ends of the rotating shaft are rotatably connected to the outer walls of the second rotating disk and the third rotating disk respectively;

The purpose of such arrangement is to drive the air supply assembly to operate through the crank structure while the rotating shaft of the first driving roller rotates.

Furthermore, the cleaning structure includes a brush, a push plate and a mounting plate, the brush and the push plate are located inside the shell, the push plate is located outside the bottom of the shell, and the cleaning structure is distributed.

Further, a sliding groove is provided on the outer wall of the bracket, a sliding block is slidably connected to the inner wall of the sliding groove, a first turntable is rotatably connected to the outer wall of the sliding block, a first connecting rod is connected between the second turntable and the first turntable, and two ends of the first connecting rod are rotatably connected to the second turntable and the outer wall of the first turntable respectively;

The purpose of this arrangement is that while the shaft of the first driving roller rotates, the first connecting rod cooperates with the first turntable to perform angular deflection, and the sliding block is repeatedly pulled to allow the brush on the mounting plate to move left and right on the outside of the two crushing rollers, thereby generating friction and scraping off and cleaning the crushed materials remaining on the outer walls of the two crushing rollers.

Further, the sliding block extends to the outside of the bottom of the sliding groove, the bottom of the sliding block is connected to a first connecting rod, the two ends of the first connecting rod are respectively connected to two mounting plates, a plurality of brushes are mounted on the outer wall of the mounting plate, the brushes are close to the outer wall of the crushing drum, the push plate is mounted on an end of the second connecting rod away from the first connecting rod, and the push plate is located on the inner side of the collection box;

The purpose of this arrangement is that the shaft of the first driving roller rotates and the brush on the mounting plate moves left and right on the outside of the two crushing rollers, generating friction, which scrapes and cleans the crushed materials remaining on the outer walls of the two crushing rollers. At the same time, the push plate pushes the crushed materials discharged from the bottom outlet of the shell to the inner side of the collecting box and to the two ends of the collecting box to prevent the bottom outlet of the shell from being blocked.

The present invention has the following beneficial effects:

The present invention arranges an air supply component. When the pulley on which the first driving roller is located rotates, the second transmission belt drives the pulley of the second driving roller and the second driving roller to rotate. The film edge material is transmitted through the first driving roller, and then through the friction transmission between the rotating wheel and the second driving roller, the film edge material is sent into the interior of the shell through the top inlet of the shell to be crushed. In this process, while the rotating shaft of the first driving roller rotates, the air supply component is driven to operate through the crank structure. Through the air supply component, air is supplied to the shell on the one hand, and the air flow passes through the channel formed by the outer cover and enters the air inlet. A part of the air flow from the inclined plate blows out the crushed material along the outlet, and the other part of the air flow blows to the other side of the inner wall of the shell along the arc, so that the air flow flows in a circular shape. The air flow dissipates heat through the two crushing rollers and blows the heat out through the bottom outlet of the shell, thereby reducing the loss of the cutting mechanism caused by the heat generated during cutting.

Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned advantages at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments are briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic diagram of the drive and support structure of the present invention;

FIG3 is a schematic diagram of the housing structure of the present invention;

FIG4 is a schematic diagram of a cleaning structure of the present invention;

FIG5 is a schematic diagram of the crushing and air supply structure of the present invention;

FIG6 is a schematic diagram of a feeding structure of the present invention;

FIG7 is a schematic diagram of the air supply structure of the present invention;

In the accompanying drawings, the components represented by the reference numerals are listed as follows:

In the figure: 1. support assembly; 101. bracket; 102. sliding groove; 103. mounting rod; 104. base; 2. driving assembly; 201. motor; 202. driving gear; 203. driven gear; 204. first transmission belt; 205. second transmission belt; 3. feeding assembly; 30. first connecting rod; 31. first turntable; 32. sliding block; 301. first driving roller; 302. second turntable; 303. second driving roller; 304. fixing block; 305. connecting plate; 306. rotating wheel; 4. air supply assembly; 401. fixing plate; 402. third turntable; 403. rotating shaft; 5. crushing drum; 6. outer shell; 601. shell; 602. air inlet; 603. inclined plate; 701. first connecting rod; 702. second connecting rod; 703. brush; 704. push plate; 705. mounting plate.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Referring to FIG. 1 to FIG. 7 , the present invention is a TPU film edge material recycling and crushing device, comprising a support assembly 1, the support assembly 1 comprising a bracket 101, a driving assembly 2 is installed on the outer side of the bracket 101, two crushing rollers 5 are installed on the inner side of the bracket 101, a shell 6 is arranged on the outer side of the two crushing rollers 5, the two crushing rollers 5 are driven by the driving assembly 2, and a collecting box is installed at the bottom of the bracket 101;

A cleaning assembly is installed on the inner side of the housing 6. The purpose of this arrangement is to clean the inside of the housing 6 through the cleaning assembly. The collection box is used to collect the debris.

Two mounting rods 103 are installed at one end of the top of the bracket 101, and a feeding assembly 3 is installed between the two mounting rods 103. The driving assembly 2 drives the feeding assembly 3 through the transmission structure.

An air supply assembly 4 is installed on the outer side of the housing 6, and the feeding assembly 3 drives the air supply assembly 4 through a crank structure.

The outer wall of the bracket 101 is fixedly connected with a base 104, and the driving assembly 2 includes a motor 201, which is installed on the upper surface of the base 104. The output shaft of the motor 201 passes through the bracket 101 and extends to a side away from the base 104. The output shaft of the motor 201 is rotatably connected with the bracket 101. A driving gear 202 is installed at the output end of the motor 201. A driven gear 203 is meshed on the outer wall of the driving gear 202. The driven gear 203 is rotatably connected to the outer wall of the bracket 101 through a rotating shaft. Two crushing rollers 5 are respectively installed on the output shaft of the motor 201 and the rotating shaft of the driven gear 203. The outer walls of the two crushing rollers 5 are provided with cutting teeth.

The purpose of such arrangement is that the output shaft of the motor 201 drives the driving gear 202 to rotate, drives the driven gear 203 to rotate, and thus drives the two crushing rollers 5 to rotate.

The housing 6 includes a shell 601, which is connected to the inner walls of both sides of the bracket 101. The output shaft of the motor 201 and the rotating shaft of the driven gear 203 respectively penetrate the shell 601 and are rotatably connected.

An air inlet 602 is provided on the outer wall of the housing 601 near the air supply assembly 4. The air inlet 602 extends into the interior of the housing 601. An inclined plate 603 is connected to the bottom outer wall of the housing 601.

The top of the housing 601 is provided with an inlet, and the bottom is provided with an outlet;

The purpose of this arrangement is that part of the airflow from the inclined plate 603 blows out the crushed materials along the outlet, and the other part of the airflow blows along the arc to the other side of the inner wall of the shell 601, so that the airflow flows in a circular manner, the inlet is used for feeding, and the outlet is used for discharging.

The feeding assembly 3 includes a first driving roller 301, which is rotatably connected between the two mounting rods 103 via a rotating shaft;

Two pulleys are installed on the outer wall of one end of the first driving roller 301, and a pulley is installed on the end of the driven gear 203 close to the first driving roller 301. A first transmission belt 204 is connected between the pulley of the driven gear 203 and the pulley of the first driving roller 301. The transmission structure consists of the first transmission belt 204, the second transmission belt 205 and the pulley;

The purpose of such arrangement is that when the driven gear 203 rotates, the pulley where the first driving roller 301 is located and the first driving roller 301 are driven to rotate through the pulley and the first transmission belt 204 .

The inner walls on both sides of the top of the bracket 101 are rotatably connected by a second driving roller 303. A pulley is installed on the outer wall of the rotating shaft of the second driving roller 303. The pulley of the first driving roller 301 is connected to the pulley of the second driving roller 303 through the second transmission belt 205.

Two fixed blocks 304 are installed on the upper surface of the bracket 101, a rotating rod is rotatably connected between the two fixed blocks 304, two connecting plates 305 are connected to the outer wall of the rotating rod, a rotating wheel 306 is rotatably connected between the two connecting plates 305, the rotating wheel 306 and the second driving roller 303 are close to each other, and the rotating wheel 306 and the second driving roller 303 are located at the top entrance of the shell 601;

The purpose of this arrangement is that when the pulley on which the first driving roller 301 is located rotates, the pulley of the second driving roller 303 and the second driving roller 303 are driven to rotate through the second transmission belt 205, and the film edge material is transmitted through the first driving roller 301, and then through the friction transmission between the rotating wheel 306 and the second driving roller 303, the film edge material is sent into the interior of the shell 601 through the top inlet of the shell 601 for crushing.

The air supply assembly 4 includes an outer cover, a fixed plate 401 and a rotating shaft 403. The outer cover is installed between the inner walls on both sides of the bracket 101. A plurality of fixed plates 401 are installed on the outer wall of the rotating shaft 403. The fixed plates 401 are rotatably connected between the inner walls on both sides of the outer cover and the bracket 101 through the rotating shaft 403. The fixed plates 401 and the rotating shaft 403 are driven by a crank structure.

The air inlet of the outer cover extends to the outside of the bracket 101 downward, and the air outlet extends to the inside of the housing 6;

The purpose of this arrangement is to supply air to the shell 601 through the air supply component 4 on the one hand to dissipate the heat of the two crushing rollers 5, and on the other hand, through the air supply and the cleaning structure, the crushed materials remaining on the outer walls of the two crushing rollers 5 are blown out through the bottom outlet of the shell 601.

The crank structure includes a second rotating disk 302, a third rotating disk 402 and a rotating shaft 403. The rotating shaft of the first driving roller 301 penetrates the mounting rod 103 and is rotatably connected to the mounting rod 103. The second rotating disk 302 is mounted on the rotating shaft of the first driving roller 301. The rotating shaft 403 penetrates the inner wall of the bracket 101 and extends to the outside. The third rotating disk 402 is mounted on the outer wall of the rotating shaft 403. Both ends of the rotating shaft 403 are rotatably connected to the outer walls of the second rotating disk 302 and the third rotating disk 402 respectively.

The purpose of such arrangement is to drive the air supply assembly 4 to operate through the crank structure while the rotating shaft of the first driving roller 301 rotates.

The cleaning structure includes a brush 703, a push plate 704 and a mounting plate 705. The brush 703 and the push plate 704 are located inside the housing 6, and the push plate 704 is located outside the bottom of the housing 6. The cleaning structure is distributed.

A sliding groove 102 is provided on the outer wall of the bracket 101, a sliding block 32 is slidably connected to the inner wall of the sliding groove 102, a first rotating disk 31 is rotatably connected to the outer wall of the sliding block 32, a first connecting rod 30 is connected between the second rotating disk 302 and the first rotating disk 31, and two ends of the first connecting rod 30 are rotatably connected to the outer walls of the second rotating disk 302 and the first rotating disk 31 respectively;

The purpose of this arrangement is that while the shaft of the first driving roller 301 rotates, the first connecting rod 30 cooperates with the first turntable 31 to perform angular deflection, and the sliding block 32 is repeatedly pulled to allow the brush 703 on the mounting plate 705 to move left and right outside the two crushing rollers 5 to generate friction, thereby scraping off and cleaning the crushed materials remaining on the outer walls of the two crushing rollers 5.

The sliding block 32 extends to the outside of the bottom of the sliding groove 102, and the bottom of the sliding block 32 is connected to a first connecting rod 701, and the two ends of the first connecting rod 701 are respectively connected to two mounting plates 705, and a plurality of brushes 703 are installed on the outer wall of the mounting plate 705, and the brushes 703 are close to the outer wall of the crushing drum 5. The push plate 704 is installed at one end of the second connecting rod 702 away from the first connecting rod 701, and the push plate 704 is located on the inner side of the collection box;

The purpose of this arrangement is that the rotating shaft of the first driving roller 301 rotates and the brush 703 on the mounting plate 705 moves left and right on the outside of the two crushing rollers 5, generating friction, which scrapes and cleans the debris remaining on the outer walls of the two crushing rollers 5. At the same time, the push plate 704 pushes the debris discharged from the bottom outlet of the shell 601 to the two ends of the collecting box on the inner side of the collecting box to prevent the bottom outlet of the shell 601 from being blocked.

When in use, the motor 201 is started, and the edge material passes through the first driving roller 301. The output shaft of the motor 201 drives the driving gear 202 to rotate, and drives the driven gear 203 to rotate, thereby driving the two crushing rollers 5 to rotate. When the driven gear 203 rotates, the pulley where the first driving roller 301 is located and the first driving roller 301 are driven to rotate through the pulley and the first transmission belt 204. When the pulley where the first driving roller 301 is located rotates, the pulley and the second driving roller 303 are driven to rotate through the second transmission belt 205. The film edge material is transmitted through the first driving roller 301, and then through the friction transmission between the rotating wheel 306 and the second driving roller 303, the film edge material is sent into the interior of the shell 601 through the top inlet of the shell 601 for crushing;

While the rotating shaft of the first driving roller 301 rotates, the crank structure drives the air supply assembly 4 to operate. The air supply assembly 4 supplies air to the housing 601 to dissipate heat from the two crushing rollers 5. On the other hand, the air supply cooperates with the cleaning structure to blow out the crushed materials remaining on the outer walls of the two crushing rollers 5 through the bottom outlet of the housing 601.

While the shaft of the first driving roller 301 rotates, the first connecting rod 30 cooperates with the first turntable 31 to perform angular deflection, and the sliding block 32 is repeatedly pulled to allow the brush 703 on the mounting plate 705 to move left and right on the outside of the two crushing rollers 5 to generate friction, so that the debris remaining on the outer walls of the two crushing rollers 5 are scraped off and cleaned. While the shaft of the first driving roller 301 rotates and the brush 703 on the mounting plate 705 moves left and right on the outside of the two crushing rollers 5 to generate friction, so that the debris remaining on the outer walls of the two crushing rollers 5 are scraped off and cleaned, the push plate 704 pushes the debris discharged from the bottom outlet of the shell 601 to the two ends of the collecting box on the inner side of the collecting box to prevent the bottom outlet of the shell 601 from being blocked.

The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims (8)

1. A TPU film edge material recovery and crushing device, characterized in that it comprises: A support assembly (1), the support assembly (1) comprising a bracket (101), a driving assembly (2) being mounted on the outer side of the bracket (101), two crushing rollers (5) being mounted on the inner side of the bracket (101), a shell (6) being arranged on the outer sides of the two crushing rollers (5), the two crushing rollers (5) being driven by the driving assembly (2), and a collecting box being mounted on the bottom of the bracket (101); A cleaning component is installed on the inner side of the housing (6); Two mounting rods (103) are installed at one end of the top of the bracket (101), a feeding assembly (3) is installed between the two mounting rods (103), and the driving assembly (2) drives the feeding assembly (3) through a transmission structure. An air supply assembly (4) is installed on the outer side of the housing (6), and the feeding assembly (3) drives the air supply assembly (4) via a crank structure. The outer wall of the bracket (101) is fixedly connected to a base (104); the driving assembly (2) comprises a motor (201); the motor (201) is mounted on the upper surface of the base (104); the output shaft of the motor (201) passes through the bracket (101) and extends to a side away from the base (104); the output shaft of the motor (201) is rotatably connected to the bracket (101); a driving gear (202) is mounted on the output end of the motor (201); a driven gear (203) is meshed on the outer wall of the driving gear (202); the driven gear (203) is rotatably connected to the outer wall of the bracket (101) via a rotating shaft; the two pulverizing rollers (5) are respectively mounted on the output shaft of the motor (201) and the rotating shaft of the driven gear (203); and cutting teeth are provided on the outer walls of the two pulverizing rollers (5); The feeding assembly (3) comprises a first driving roller (301), wherein the first driving roller (301) is rotatably connected between two mounting rods (103) via a rotating shaft; The crank structure comprises a second rotating disk (302), a third rotating disk (402) and a rotating shaft (403); the rotating shaft of the first driving roller (301) passes through the mounting rod (103) and is rotatably connected to the mounting rod (103); the second rotating disk (302) is mounted on the rotating shaft of the first driving roller (301); the rotating shaft (403) passes through the inner wall of the bracket (101) and extends to the outside; the third rotating disk (402) is mounted on the outer wall of the rotating shaft (403); and two ends of the rotating shaft (403) are rotatably connected to the outer walls of the second rotating disk (302) and the third rotating disk (402), respectively. 2. A TPU film edge material recycling and crushing device according to claim 1, characterized in that: the housing (6) comprises a shell (601), the shell (601) is connected to the inner walls on both sides of the bracket (101), and the output shaft of the motor (201) and the rotating shaft of the driven gear (203) respectively penetrate the shell (601) and are rotatably connected; An air inlet (602) is provided on an outer wall of one side of the shell (601) close to the air supply assembly (4), the air inlet (602) extends into the interior of the shell (601), and an inclined plate (603) is connected to the bottom outer wall of the shell (601); The shell (601) is provided with an inlet at the top and an outlet at the bottom. 3. A TPU film edge material recovery and crushing device according to claim 2, characterized in that: two pulleys are installed on the outer wall of one end of the first driving roller (301), and a pulley is installed on the end of the driven gear (203) close to the first driving roller (301), and a first transmission belt (204) is connected between the pulley of the driven gear (203) and the pulley of the first driving roller (301), and the transmission structure consists of the first transmission belt (204), the second transmission belt (205) and the pulley. 4. A TPU film edge material recycling and crushing device according to claim 3, characterized in that: the inner walls on both sides of the top of the bracket (101) are rotatably connected by a second driving roller (303), a pulley is installed on the outer wall of the rotating shaft of the second driving roller (303), and the pulley of the first driving roller (301) is connected to the pulley of the second driving roller (303) through a second transmission belt (205); Two fixed blocks (304) are installed on the upper surface of the bracket (101); a rotating rod is rotatably connected between the two fixed blocks (304); two connecting plates (305) are connected to the outer wall of the rotating rod; a rotating wheel (306) is rotatably connected between the two connecting plates (305); the surfaces of the rotating wheel (306) and the second driving roller (303) are close to each other; the rotating wheel (306) and the second driving roller (303) are located at the top entrance of the shell (601). 5. A TPU film edge material recovery and crushing device according to claim 4, characterized in that: the air supply component (4) comprises an outer cover, a fixed plate (401) and a rotating shaft (403), the outer cover is installed between the inner walls on both sides of the bracket (101), a plurality of fixed plates (401) are installed on the outer wall of the rotating shaft (403), the fixed plates (401) are rotatably connected between the outer cover and the inner walls on both sides of the bracket (101) through the rotating shaft (403), and the fixed plates (401) and the rotating shaft (403) are driven by a crank structure; The air inlet of the outer cover extends downward to the outside of the bracket (101), and the air outlet extends to the inside of the outer shell (6). 6. A TPU film edge material recovery and crushing device according to claim 5, characterized in that: the cleaning component comprises a brush (703), a push plate (704) and a mounting plate (705), the brush (703) and the mounting plate (705) are located inside the housing (6), and the push plate (704) is located outside the bottom of the housing (6). 7. A TPU film edge material recovery and crushing device according to claim 6, characterized in that: a sliding groove (102) is provided on the outer wall of the bracket (101), a sliding block (32) is slidably connected to the inner wall of the sliding groove (102), a first turntable (31) is rotatably connected to the outer wall of the sliding block (32), a first connecting rod (30) is connected between the second turntable (302) and the first turntable (31), and two ends of the first connecting rod (30) are rotatably connected to the outer walls of the second turntable (302) and the first turntable (31), respectively. 8. A TPU film edge material recovery and crushing device according to claim 7, characterized in that: the sliding block (32) extends to the outside of the bottom of the sliding groove (102), the bottom of the sliding block (32) is connected to a first connecting rod (701), the two ends of the first connecting rod (701) are respectively connected to two mounting plates (705), a plurality of brushes (703) are installed on the outer wall of the mounting plate (705), the brushes (703) are close to the outer wall of the crushing drum (5), the push plate (704) is installed at one end of the second connecting rod (702) away from the first connecting rod (701), and the push plate (704) is located on the inner side of the collecting box.