Injection molding machine with returned material utilization function for plastic film production

Abstract

The invention relates to the technical field of injection molding, in particular to an injection molding machine with a returned material utilization function for plastic film production. The top of an injection molding extrusion cylinder is fixedly connected with a feeding bin, one end of the injection molding extrusion cylinder is fixedly connected with an extrusion motor, and the end, away from the extrusion motor, of the injection molding extrusion cylinder is fixedly connected with a treatment bin; a heating bottom bin is fixedly connected to the bottom of the treatment bin, an extrusion plate is fixedly connected to the side, away from the injection molding extrusion cylinder, of the treatment bin, a cooling bin is fixedly connected to the interior of the extrusion plate, two side mounting boxes are fixedly connected to the outer side of the treatment bin, and a conveying motor is fixedly connected to one side of one side mounting box; according to the plastic film production equipment, through the ingenious design, effective recycling and reutilization of waste materials in plastic film production are achieved, the cyclic utilization rate of resources is increased, and the environmental protection pressure is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding, and specifically relates to an injection molding machine for plastic film production with a function of recycling recycled materials. Background Art

[0002] An injection molding machine is an injection molding device that uses a plastic molding die to make thermoplastic or thermosetting plastics into plastic parts, and is widely used in various fields such as national defense, electromechanics, automobiles, transportation, building materials, packaging, agriculture, culture, education, health, and people's daily lives.

[0003] In the prior art, during the production process of plastic films, in order to ensure the flatness of the edges of the plastic films, edge trimming is generally carried out after extrusion. However, this process generates too much waste, and these wastes are often directly discarded, which not only causes waste of resources but also increases the environmental burden. Therefore, the present invention provides an injection molding machine for plastic film production with a function of recycling recycled materials. Summary of the Invention

[0004] The purpose of the present invention is to provide an injection molding machine for plastic film production with a function of recycling recycled materials, so as to solve the problems raised in the above background art.

[0005] The technical solution of the present invention is: an injection molding machine for plastic film production with a function of recycling returned materials, including an injection extrusion barrel. The top of the injection extrusion barrel is fixedly connected with a feed bin. One end of the injection extrusion barrel is fixedly connected with an extrusion motor. The end of the injection extrusion barrel away from the extrusion motor is fixedly connected with a treatment bin. The bottom of the treatment bin is fixedly connected with a heating bottom bin. One side of the treatment bin away from the injection extrusion barrel is fixedly connected with an extrusion plate. The inside of the extrusion plate is fixedly connected with a cooling bin. The outside of the treatment bin is fixedly connected with two side mounting boxes. One side of one side mounting box is fixedly connected with a transport motor. The inside of the two side mounting boxes is rotatably connected with a transport main shaft. The inside of the two side mounting boxes is rotatably connected with a transport auxiliary shaft. The outside of the transport main shaft is fixedly connected with a transport main roller. The outside of the transport auxiliary shaft is fixedly connected with a transport auxiliary roller. The outside of the transport auxiliary roller is fixedly connected with two cutting blades. The outside of the transport main roller is fixedly connected with two transport pressing teeth. There is an annular groove on the outside of the transport main roller, and the cutting blades are clamped in the annular groove of the transport main roller. Both ends of the transport auxiliary shaft are fixedly connected with auxiliary gears. Both ends of the transport main shaft are fixedly connected with main gears. The main gears and the auxiliary gears mesh with each other, and the main gears and the auxiliary gears are installed inside the side mounting boxes. The end of the injection extrusion barrel is fixedly connected with an adjustment bin. Two inner sliding columns are slidably clamped inside the adjustment bin. Return springs are installed at the top and bottom of the inner sliding columns. The outside of the inner sliding columns is fixedly connected with a connecting sliding plate. One end of the connecting sliding plate away from the inner sliding column is fixedly connected with a mounting plate. Both sides of the mounting plate are fixedly connected with sliding scraping blades. The sliding scraping blades are closely attached to the bottom of the transport pressing teeth; during use: the material enters the inside of the injection extrusion barrel through the feed bin. The injection extrusion barrel is started by the extrusion motor to inject the material into a film shape and extrude it. After micro-cooling and shaping behind the injection extrusion barrel, the transport motor is started to drive the transport main shaft to rotate, drive the main gear to rotate, drive the auxiliary gear and the transport auxiliary shaft to rotate synchronously, drive the transport main roller and the transport auxiliary roller to rotate synchronously, so that the plastic film passes between the transport main roller and the transport auxiliary roller. The edge of the plastic film is trimmed by the cutting blades to make the edge of the plastic film flat. The edge plastic film is pressed and held by the transport pressing teeth and rotates downward. It is resisted by the sliding scraping blades to make the edge plastic film fall off. Through the setting of the return spring, the connecting sliding plate moves up and down adaptively, so that the sliding scraping blades always resist the outer edge of the transport pressing teeth. The bottom of the treatment bin is heated by the heating bottom bin to melt the edge plastic film into a liquid state. The trimmed plastic film is cooled and solidified by the cooling bin and then discharged.

[0006] Preferably, a feed support pillar is fixedly connected to the bottom of the processing bin, and a discharge support pillar is connected to the bottom of the injection extrusion cylinder. A hot liquid bin is fixedly connected to the outer sides of the feed support pillar and the discharge support pillar. A transport thin cylinder is connected to the bottoms of the feed support pillar and the discharge support pillar. Installation inner plates are fixedly connected to the interiors of the feed support pillar and the discharge support pillar. A compression spring is fixedly connected to one side of the installation inner plate. One end of the compression spring away from the installation inner plate is fixedly connected to a trapezoidal inclined block. A limiting outer cylinder is fixedly connected to one side of the trapezoidal inclined block. A limiting inner ring is fixedly connected to the interior of the limiting outer cylinder. A limiting inner column is fixedly connected to one side of the installation inner plate. A limiting outer ring is fixedly connected to the outer side of the limiting inner column. A limiting inner ring is fixedly connected to the interior of the limiting outer cylinder. The limiting outer ring is slidably clamped inside the limiting outer cylinder. The limiting inner ring is slidably clamped to the outside of the limiting inner column. The trapezoidal inclined blocks inside the feed support pillar and the discharge support pillar are opposite in the up-and-down direction. A transport motor is fixedly connected to the end of the transport thin cylinder. The output end of the transport motor is fixedly connected to a transport rotating shaft. A limiting column is fixedly connected to the interior of the transport thin cylinder. A push-pull plug is slidably clamped to the outside of the transport rotating shaft. The limiting column is slidably clamped to the push-pull plug. Corrugated grooves are formed in the outside of the transport rotating shaft. A positioning ball is fixedly connected to the inner wall of the push-pull plug. The positioning ball is slidably clamped inside the corrugated grooves. When in use: The melted material passes through the interior of the feed support pillar. By starting the transport motor, the transport rotating shaft is driven to rotate. The push-pull plug is limited by the limiting column, so that the positioning ball moves along the corrugated grooves of the transport rotating shaft, causing the push-pull plug to perform a reciprocating motion. When the push-pull plug retracts, the material squeezes the inclined surface of the trapezoidal inclined block, sucking the material into the interior of the transport thin cylinder. The two trapezoidal inclined blocks are opposite in the up-and-down direction. Because the other direction of the trapezoidal inclined block is a vertical surface, the material cannot pass through. Therefore, conversely, when the push-pull plug extends, the material will be extruded through the discharge support pillar and enter the interior of the injection extrusion cylinder.

[0007] The present invention provides an injection molding machine for plastic film production with a function of recycling and reusing materials through improvement. Compared with the prior art, it has the following improvements and advantages:

[0008] First, the present invention discloses an injection molding machine for producing plastic film with a recycling function. The material enters the interior of the injection molding extruder through a feed bin, and the injection molding extruder is started by an extrusion motor to inject and extrude the material into a film shape. The material is shaped by micro-cooling behind the injection molding extruder. The transport motor is started to drive the transport main shaft to rotate, drive the main gear to rotate, drive the sub-gear and the transport sub-shaft to rotate synchronously, drive the transport main roller and the transport sub-roller to rotate synchronously, so that the plastic film passes between the transport main roller and the transport sub-roller, and trims the edge of the plastic film through a cutting blade to make the edge of the plastic film flat. The edge plastic film is squeezed and pressed by the transport pressing teeth, rotated downward, and resisted by a sliding scraper to scrape off the edge plastic film. The setting of a reset spring enables the connecting slide plate to move up and down adaptively, so that the sliding scraper always resists the outer edge of the transport pressing teeth, and the bottom of the heat treatment bin is heated by the heating bottom bin to melt the edge plastic film into a liquid state. The trimmed plastic film is cooled and solidified by the cooling bin and then discharged.

[0009] Second, the present invention discloses an injection molding machine for producing plastic films with a recycling function. The molten material passes through the inside of the feed support and is started by the transport motor to drive the transport shaft to rotate. The push-pull plug is limited by the limit column, so that the positioning ball moves along the corrugated groove of the transport shaft, and the push-pull plug reciprocates. When the push-pull plug is recovered, the material squeezes the inclined surface of the trapezoidal inclined block, so that the material is sucked into the inside of the transport thin tube. The two trapezoidal inclined blocks are in opposite directions up and down. Because the other direction of the trapezoidal inclined block is a vertical plane, the material cannot pass through. Therefore, on the contrary, when the push-pull plug is extended, the material will be squeezed out through the discharge support and enter the inside of the injection extrusion tube;

[0010] Summary: The present invention discloses an injection molding machine for plastic film production with a material recycling function. The present invention realizes the effective recycling and reuse of waste materials in plastic film production through ingenious design, which not only improves the recycling rate of resources, but also reduces environmental pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the structure of the hot liquid warehouse of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the transport thin tube of the present invention;

[0015] Figure 4 It is a schematic diagram of the structure of the transport motor of the present invention;

[0016] Figure 5 It is a schematic diagram of the structure of the injection molding extrusion barrel of the present invention;

[0017] Figure 6 is a schematic structural view of the processing bin of the present invention;

[0018] Figure 7 is a schematic structural view of the auxiliary transport roller of the present invention;

[0019] Figure 8 is a schematic structural view of the adjustment bin of the present invention;

[0020] Figure 9 is a schematic structural view of the discharge support column of the present invention;

[0021] Figure 10 is a schematic structural view of the trapezoidal inclined block of the present invention.

[0022] Explanation of reference numerals:

[0023] 1, injection and extrusion barrel; 2, feed bin; 3, extrusion motor; 4, processing bin; 5, extrusion plate; 6, heating bottom bin; 7, side mounting box; 8, hot liquid bin; 9, transport motor; 10, transport thin barrel; 11, transport rotating shaft; 12, push-pull plug; 13, positioning ball; 14, limiting column; 15, transport motor; 16, transport main shaft; 17, main gear; 18, auxiliary gear; 19, auxiliary transport shaft; 20, transport main roller; 21, transport pressing teeth; 22, auxiliary transport roller; 23, cutting piece; 24, cooling bin; 25, adjustment bin; 26, inner sliding column; 27, return spring; 28, connecting sliding plate; 29, mounting plate; 30, sliding scraping piece; 31, feed support column; 32, discharge support column; 33, inner mounting plate; 34, trapezoidal inclined block; 35, compression spring; 36, limiting inner column; 37, limiting outer cylinder; 38, limiting outer ring; 39, limiting inner ring. Detailed implementation manners

[0024] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The present invention provides an injection molding machine for plastic film production with a function of recycling materials by improvement. The technical solution of the present invention is as follows:

[0026] Such as Figures 1 - 10As shown in the figure, an injection molding machine for plastic film production with a function of recycling recycled materials includes an injection extrusion barrel 1. A feed bin 2 is fixedly connected to the top of the injection extrusion barrel 1. An extrusion motor 3 is fixedly connected to one end of the injection extrusion barrel 1. A processing bin 4 is fixedly connected to the end of the injection extrusion barrel 1 away from the extrusion motor 3. A heating bottom bin 6 is fixedly connected to the bottom of the processing bin 4. An extrusion plate 5 is fixedly connected to the side of the processing bin 4 away from the injection extrusion barrel 1. A cooling bin 24 is fixedly connected to the inside of the extrusion plate 5. Two side mounting boxes 7 are fixedly connected to the outside of the processing bin 4. A transport motor 15 is fixedly connected to one side of one side mounting box 7. A transport main shaft 16 is rotatably connected to the inside of the two side mounting boxes 7. A transport sub-shaft 19 is rotatably connected to the inside of the two side mounting boxes 7. A transport main roller 20 is fixedly connected to the outside of the transport main shaft 16. A transport sub-roller 22 is fixedly connected to the outside of the transport sub-shaft 19. Two cutting blades 23 are fixedly connected to the outside of the transport sub-roller 22. Two transport pressing teeth 21 are fixedly connected to the outside of the transport main roller 20. An annular groove is provided on the outside of the transport main roller 20. The cutting blade 23 is clamped in the annular groove of the transport main roller 20. Both ends of the transport sub-shaft 19 are fixedly connected with sub-gears 18. Both ends of the transport main shaft 16 are fixedly connected with main gears 17. The main gear 17 meshes with the sub-gear 18. The main gear 17 and the sub-gear 18 are installed inside the side mounting box 7. An adjustment bin 25 is fixedly connected to the end of the injection extrusion barrel 1. Two inner sliding columns 26 are slidably clamped inside the adjustment bin 25. Return springs 27 are installed at the top and bottom of the inner sliding column 26. A connecting slide plate 28 is fixedly connected to the outside of the inner sliding column 26. One end of the connecting slide plate 28 away from the inner sliding column 26 is fixedly connected with a mounting plate 29. Sliding scraping blades 30 are fixedly connected to both sides of the mounting plate 29. The sliding scraping blades 30 are closely attached to the bottom of the transport pressing teeth 21. When in use: Materials enter the inside of the injection extrusion barrel 1 through the feed bin 2. The injection extrusion barrel 1 is started by the extrusion motor 3 to inject the materials into a film shape and extrude them. Through micro-cooling and shaping behind the injection extrusion barrel 1, the transport motor 15 is started to drive the transport main shaft 16 to rotate, drive the main gear 17 to rotate, drive the sub-gear 18 and the transport sub-shaft 19 to rotate synchronously, drive the transport main roller 20 and the transport sub-roller 22 to rotate synchronously, so that the plastic film passes between the transport main roller 20 and the transport sub-roller 22. The edge of the plastic film is trimmed by the cutting blade 23 to make the edge of the plastic film flat. The edge plastic film is pressed and held by the transport pressing teeth 21 and rotated downward. It is resisted by the sliding scraping blade 30 to make the edge plastic film fall off. Through the setting of the return spring 27, the connecting slide plate 28 moves up and down adaptively, so that the sliding scraping blade 30 always resists the outer edge of the transport pressing teeth 21. The bottom of the processing bin 4 is heated by the heating bottom bin 6 to melt the edge plastic film into a liquid state. The trimmed plastic film is cooled and solidified through the cooling bin 24 and then discharged.

[0027] Furthermore, a feeding support column 31 is fixedly connected to the bottom of the processing bin 4, and a discharging support column 32 is connected to the bottom of the injection molding and extrusion barrel 1. A hot liquid bin 8 is fixedly connected to the outer sides of the feeding support column 31 and the discharging support column 32. A transportation thin barrel 10 is connected to the bottoms of the feeding support column 31 and the discharging support column 32. Installation inner plates 33 are fixedly connected to the interiors of the feeding support column 31 and the discharging support column 32. A compression spring 35 is fixedly connected to one side of the installation inner plate 33. One end of the compression spring 35 far from the installation inner plate 33 is fixedly connected to a trapezoidal inclined block 34. A limiting outer cylinder 37 is fixedly connected to one side of the trapezoidal inclined block 34. A limiting inner ring 39 is fixedly connected to the interior of the limiting outer cylinder 37. A limiting inner column 36 is fixedly connected to one side of the installation inner plate 33. A limiting outer ring 38 is fixedly connected to the outer side of the limiting inner column 36. The limiting inner ring 39 is fixedly connected to the interior of the limiting outer cylinder 37. The limiting outer ring 38 is slidably clamped inside the limiting outer cylinder 37. The limiting inner ring 39 is slidably clamped to the outer side of the limiting inner column 36. The trapezoidal inclined blocks 34 inside the feeding support column 31 and the discharging support column 32 are opposite in the up and down directions. A transportation motor 9 is fixedly connected to the end of the transportation thin barrel 10. The output end of the transportation motor 9 is fixedly connected to a transportation rotating shaft 11. A limiting column 14 is fixedly connected to the interior of the transportation thin barrel 10. A push-pull plug 12 is slidably clamped to the outer side of the transportation rotating shaft 11. The limiting column 14 and the push-pull plug 12 are slidably clamped. A corrugated groove is formed on the outer side of the transportation rotating shaft 11. A positioning ball 13 is fixedly connected to the inner wall of the push-pull plug 12. The positioning ball 13 is slidably clamped inside the corrugated groove. When in use: The molten material passes through the interior of the feeding support column 31. By starting the transportation motor 9, the transportation rotating shaft 11 is driven to rotate. The push-pull plug 12 is limited by the limiting column 14, so that the positioning ball 13 moves along the corrugated groove of the transportation rotating shaft 11, causing the push-pull plug 12 to perform a reciprocating motion. When the push-pull plug 12 retracts, the material presses against the inclined surface of the trapezoidal inclined block 34, sucking the material into the interior of the transportation thin barrel 10. The two trapezoidal inclined blocks 34 are opposite in the up and down directions. Because the other direction of the trapezoidal inclined block 34 is a vertical surface and the material cannot pass through, conversely, when the push-pull plug 12 extends, the material will be extruded through the discharging support column 32 and enter the interior of the injection molding and extrusion barrel 1.

[0028] Working principle: the material enters the injection molding extruder 1 through the feed bin 2, the injection molding extruder 1 is started by the extrusion motor 3, the material is injected into a film, and is shaped by micro-cooling behind the injection molding extruder 1. The transport motor 15 is started, driving the transport main shaft 16 to rotate, driving the main gear 17 to rotate, driving the sub-gear 18 and the transport sub-shaft 19 to rotate synchronously, driving the transport main roller 20 and the transport sub-roller 22 to rotate synchronously, so that the plastic film passes between the transport main roller 20 and the transport sub-roller 22, and the edge of the plastic film is trimmed by the cutting blade 23 to make the edge of the plastic film flat. The edge plastic film is squeezed and pressed by the transport pressing teeth 21, rotated downward, and resisted by the sliding scraper 30 to scrape off the edge of the plastic film. The setting of the reset spring 27 makes the connecting slide plate 28 move up and down adaptively, so that the sliding scraper 30 always resists the transport The outer edge of the pressing tooth 21 is heated by the heating bottom bin 6 to heat the bottom of the treatment bin 4, so that the edge plastic film is melted into a liquid state. The trimmed plastic film is cooled and solidified through the cooling bin 24 and then discharged. The molten material passes through the inside of the feed support 31 and is started by the transport motor 9 to drive the transport shaft 11 to rotate. The push-pull plug 12 is limited by the limit column 14, so that the positioning ball 13 moves along the corrugated groove of the transport shaft 11, so that the push-pull plug 12 reciprocates. When the push-pull plug 12 is recovered, the material squeezes the inclined surface of the trapezoidal inclined block 34, so that the material is sucked into the inside of the transport thin tube 10. The two trapezoidal inclined blocks 34 are in opposite directions up and down. Because the other direction of the trapezoidal inclined block 34 is a vertical plane, the material cannot pass through. Therefore, on the contrary, when the push-pull plug 12 is extended, the material will be squeezed out through the discharge support 32 and enter the inside of the injection extrusion tube 1.

[0029] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An injection molding machine for plastic film production with a function of recycling materials, including an injection extrusion barrel (1), characterized in that: The top of the injection extrusion cylinder (1) is fixedly connected with a feed bin (2). One end of the injection extrusion cylinder (1) is fixedly connected with an extrusion motor (3). The end of the injection extrusion cylinder (1) far from the extrusion motor (3) is fixedly connected with a processing bin (4). The bottom of the processing bin (4) is fixedly connected with a heating bottom bin (6). One side of the processing bin (4) far from the injection extrusion cylinder (1) is fixedly connected with an extrusion plate (5). The inside of the extrusion plate (5) is fixedly connected with a cooling bin (24). Two side mounting boxes (7) are fixedly connected to the outside of the processing bin (4). One side of one side mounting box (7) is fixedly connected with a transport motor (15). A transport main shaft (16) is rotatably connected to the inside of the two side mounting boxes (7). A transport sub-shaft (19) is rotatably connected to the inside of the two side mounting boxes (7). A transport main roller (20) is fixedly connected to the outside of the transport main shaft (16). A transport sub-roller (22) is fixedly connected to the outside of the transport sub-shaft (19). Two cutting blades (23) are fixedly connected to the outside of the transport sub-roller (22). Two transport pressing teeth (21) are fixedly connected to the outside of the transport main roller (20). An annular groove is provided on the outside of the transport main roller (20), and the cutting blade (23) is clamped in the annular groove of the transport main roller (20).

2. The injection molding machine for plastic film production with the function of recycling materials according to claim 1, characterized in that: Both ends of the transport sub-shaft (19) are fixedly connected with sub-gears (18). Both ends of the transport main shaft (16) are fixedly connected with main gears (17). The main gear (17) meshes with the sub-gear (18), and the main gear (17) and the sub-gear (18) are installed inside the side mounting box (7).

3. The injection molding machine for plastic film production with a function of recycling materials according to claim 2, characterized in that: An adjustment bin (25) is fixedly connected to the end of the injection extrusion cylinder (1). Two inner sliding columns (26) are slidably clamped inside the adjustment bin (25). Return springs (27) are installed at the top and bottom of the inner sliding column (26). A connecting slide plate (28) is fixedly connected to the outside of the inner sliding column (26). One end of the connecting slide plate (28) far from the inner sliding column (26) is fixedly connected with a mounting plate (29). Sliding scraping blades (30) are fixedly connected to both sides of the mounting plate (29), and the sliding scraping blades (30) are closely attached to the bottom of the transport pressing teeth (21).

4. An injection molding machine for plastic film production with a function of recycling materials, as claimed in claim 3, wherein: A feed support column (31) is fixedly communicated with the bottom of the processing bin (4). A discharge support column (32) is communicated with the bottom of the injection extrusion cylinder (1). A hot liquid bin (8) is fixedly connected to the outside of the feed support column (31) and the discharge support column (32). A transport thin cylinder (10) is communicated with the bottoms of the feed support column (31) and the discharge support column (32).

5. An injection molding machine for plastic film production with a function of recycling materials, characterized in that: Mounting inner plates (33) are fixedly connected to the inside of the feed support column (31) and the discharge support column (32). A compression spring (35) is fixedly connected to one side of the mounting inner plate (33). A trapezoidal inclined block (34) is fixedly connected to the end of the compression spring (35) far from the mounting inner plate (33).

6. An injection molding machine for plastic film production with a function of recycling materials, characterized in that: One side of the trapezoidal inclined block (34) is fixedly connected with a limiting outer cylinder (37), the inside of the limiting outer cylinder (37) is fixedly connected with a limiting inner ring (39), one side of the mounting inner plate (33) is fixedly connected with a limiting inner column (36), the outside of the limiting inner column (36) is fixedly connected with a limiting outer ring (38), the inside of the limiting outer cylinder (37) is fixedly connected with a limiting inner ring (39), the limiting outer ring (38) is slidably clamped inside the limiting outer cylinder (37), the limiting inner ring (39) is slidably clamped outside the limiting inner column (36), and the up-and-down directions of the trapezoidal inclined blocks (34) inside the feeding support column (31) and the discharging support column (32) are opposite.

7. An injection molding machine for plastic film production with a function of recycling materials, as claimed in claim 6, wherein: One end of the transportation thin cylinder (10) is fixedly connected with a transportation motor (9), the output end of the transportation motor (9) is fixedly connected with a transportation rotating shaft (11), the inside of the transportation thin cylinder (10) is fixedly connected with a limiting column (14), a push-pull plug (12) is slidably clamped outside the transportation rotating shaft (11), the limiting column (14) is slidably clamped with the push-pull plug (12), a corrugated groove is formed on the outside of the transportation rotating shaft (11), a positioning ball (13) is fixedly connected to the inner wall of the push-pull plug (12), and the positioning ball (13) is slidably clamped in the corrugated groove.

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