Automatic feed plastic pulverizer

Abstract

The utility model relates to the technical field of plastic pulverizer, and disclose a kind of automatic feeding's plastic pulverizer, including pulverizer body, cleaning structure includes the first connecting seat of fixed installation in support seat bottom, rotatingly connected with fixed assembly in the middle of first connecting seat, fixed assembly one end is connected with driving assembly, fixed assembly outside is equipped with sleeve, sleeve outer circumferential surface is equipped with several bristles, support seat bottom is opened and is equipped with through opening, sleeve is located below through opening.The utility model cleaning structure is through the continuous contact of rotating bristle and the lower surface of conveying belt, effectively removes the plastic dust and chippings adsorbed on the surface of conveying belt, prevents its accumulation and forms briquetting, the rotating cleaning action of bristle can peel off adhered impurities in time, avoid the material conveying block caused by chippings accumulation, to ensure that plastic bottle and broken material piece are smoothly moved on conveying belt, completely solve the problem of material blocking and accumulation caused by chippings accumulation.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic crushers, specifically an automatic feeding plastic crusher. Background Technology

[0002] A plastic crusher is a mechanical device specifically designed to crush plastic products (such as bottles, films, pipes, injection molding waste, etc.) into small particles or fragments. It is widely used in waste plastic processing, recycling of renewable resources, and crushing of injection molding scraps.

[0003] Existing plastic crushers generally have a conveyor belt at the feed inlet to achieve automatic feeding. However, during continuous operation, plastic dust and debris will inevitably be adsorbed on the surface of the conveyor belt. These accumulated dust and debris, especially after forming large clumps, will significantly hinder the smooth movement of plastic bottles or broken parts on the conveyor belt, directly causing material jamming or accumulation, and destroying the continuity and efficiency of feeding. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic feeding plastic crusher to solve the problem that the conveyor belt of the existing automatic feeding plastic crusher will inevitably absorb plastic dust and debris during continuous operation. In particular, after forming large clumps, it will significantly hinder the smooth movement of plastic bottles or fragments on the conveyor belt, directly causing material jamming or accumulation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an automatic feeding plastic crusher, comprising a crusher body, a support base at one end of the crusher body, a conveyor belt installed inside the support base, one end of the conveyor belt extending to the feed inlet of the crusher body, a cleaning structure at the lower end of the crusher body, the cleaning structure including a first connecting seat fixedly installed at the bottom of the support base, a fixing component rotatably connected to the middle of the first connecting seat, a drive component connected to one end of the fixing component, a sleeve sleeved on the outside of the fixing component, a plurality of bristles fixed on the outer circumferential surface of the sleeve, an opening at the bottom of the support base, the sleeve located below the opening, and the tips of the bristles penetrating the opening and contacting the lower surface of the conveyor belt.

[0007] Furthermore, a connecting frame is fixedly connected to the outside of the support base, and a threaded hole is opened on the outside of the connecting frame. A one-way screw is threaded into the threaded hole. A handle is fixedly installed at one end of the one-way screw, and a second connecting seat is connected to the other end through a bearing. A rotating shaft is rotatably connected to the middle of the second connecting seat, and the rotating shaft is interference-fitted into the sleeve.

[0008] Furthermore, a guide rod is fixedly connected to the outside of the second connecting seat. One end of the guide rod passes through the connecting frame and extends outward. A reinforcing plate is fixedly connected to the top of the connecting frame, and the other end of the reinforcing plate is fixedly connected to the outside of the support seat.

[0009] Furthermore, a collection box is provided below the support base, the inlet of the collection box is directly opposite the brush cleaning trajectory of the sleeve, a collection container is embedded in the collection box, and a handle is fixedly connected to the outside of the collection container.

[0010] Furthermore, the fixing assembly includes a cylindrical outer shell with one open end, a cover plate fixedly installed at the open end, a connecting shaft fixedly connected to the outer side of the cover plate, an air intake channel axially opened on the connecting shaft, an air intake nozzle embedded in the air intake channel, a rubber airbag disposed inside the outer shell, a cover body fixedly installed at one end of the rubber airbag, an air intake hole communicating with the rubber airbag on the outer side of the cover body, a plurality of keys fixedly installed circumferentially on the rubber airbag, one end of each key protruding from the outer surface of the outer shell and abutting against the inner wall of the sleeve, anti-slip stripes on the surface of the key, an outlet end of the air intake nozzle abutting against a sealing plate, and the outer side of the sealing plate being connected to the cover body by a spring.

[0011] Furthermore, the drive assembly includes a motor fixedly mounted on one side of the support base, a drive wheel fixedly mounted on the motor output shaft, a driven wheel fixedly mounted on the connecting shaft, and the drive wheel and the driven wheel connected by a belt drive.

[0012] This utility model has the following beneficial effects:

[0013] (1) The cleaning structure of this utility model effectively removes plastic dust and debris adsorbed on the surface of the conveyor belt by continuous contact between the rotating bristles and the lower surface of the conveyor belt, preventing them from accumulating and forming clumps. The rotating sweeping action of the bristles can promptly peel off the adhering impurities, avoiding material conveying obstruction caused by debris accumulation, thereby ensuring the smooth movement of plastic bottles and broken parts on the conveyor belt and completely solving the problem of material jamming and accumulation caused by debris accumulation.

[0014] (2) When the compressed gas is injected through the air inlet, the gas pressure pushes the sealing plate to compress the spring, causing the rubber airbag to expand and drive the key to extend outward radially, forming a tight anti-slip contact with the inner wall of the sleeve to achieve reliable fixation. When disassembling, the ejector pin pushes open the sealing plate to release the gas, and the rubber airbag contracts to cause the key to retract and release the lock on the sleeve, thus realizing the quick installation and disassembly of the sleeve and brush bristles.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the support base, collection box, and cleaning structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the fixing component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of an existing automatic feeding plastic crusher;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Crusher body; 2. Support base; 3. Conveyor belt; 4. Cleaning structure; 401. First connecting seat; 4021. Outer shell; 4022. Cover plate; 4023. Connecting shaft; 4024. Air inlet; 4025. Rubber air bag; 4026. Cover; 4027. Key; 4028. Sealing plate; 4029. Spring; 4031. Motor; 4032. Drive wheel; 4033. Driven wheel; 4034. Belt; 404. Sleeve; 405. Brush bristles; 406. Connecting frame; 4061. Reinforcing plate; 407. One-way screw; 408. Handle; 409. Second connecting seat; 4010. Rotating shaft; 4011. Guide rod; 5. Collection box; 6. Collection container; 7. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5As shown, this utility model is an automatic feeding plastic crusher, including a crusher body 1, a support base 2 at one end of the crusher body 1, a conveyor belt 3 installed inside the support base 2, one end of the conveyor belt 3 extending to the feed port of the crusher body 1, a cleaning structure 4 at the lower end of the crusher body 1, the cleaning structure 4 including a first connecting seat 401 fixedly installed at the bottom of the support base 2, a fixing component rotatably connected to the middle of the first connecting seat 401, a driving component connected to one end of the fixing component, a sleeve 404 sleeved on the outside of the fixing component, a plurality of bristles 405 fixed on the outer circumferential surface of the sleeve 404, an opening at the bottom of the support base 2, the sleeve 404 located below the opening, and the top of the bristles 405 penetrating the opening and contacting the lower surface of the conveyor belt 3;

[0026] The sleeve 404 and the bristles 405 rotate in the opposite direction to the conveying direction of the conveyor belt 3. The cleaning structure 4 effectively removes plastic dust and debris adsorbed on the surface of the conveyor belt 3 through continuous contact between the rotating bristles 405 and the lower surface of the conveyor belt 3, preventing them from accumulating and forming clumps. The rotating cleaning action of the bristles 405 can promptly peel off the adhering impurities, avoiding material conveying obstruction caused by debris accumulation, thereby ensuring the smooth movement of plastic bottles and broken parts on the conveyor belt 3 and completely solving the problem of material jamming and accumulation caused by debris accumulation.

[0027] A connecting bracket 406 is fixedly connected to the outside of the support base 2. A threaded hole is opened on the outside of the connecting bracket 406. A one-way screw 407 is threaded into the threaded hole. A handle 408 is fixedly installed at one end of the one-way screw 407. The other end is connected to a second connecting base 409 through a bearing. A rotating shaft 4010 is rotatably connected to the middle of the second connecting base 409. The rotating shaft 4010 is interference-fitted into the sleeve 404.

[0028] When rotating the handle 408, the one-way screw 407 moves along the axis of the threaded hole, driving the second connecting seat 409 and the rotating shaft 4010 to move synchronously, so that the interference fit rotating shaft 4010 extends or retracts axially from the sleeve 404.

[0029] A guide rod 4011 is fixedly connected to the outside of the second connecting seat 409. One end of the guide rod 4011 passes through the connecting frame 406 and extends outward. A reinforcing plate 4061 is fixedly connected to the top of the connecting frame 406. The other end of the reinforcing plate 4061 is fixedly connected to the outside of the support seat 2.

[0030] The guide rod 4011 moves synchronously with the second connecting seat 409 and slides precisely within the guide hole of the connecting frame 406, forming a stable linear constraint. This structure effectively limits the radial offset of the second connecting seat 409 during the adjustment process, ensuring that the rotating shaft 4010 always moves precisely along the axis of the sleeve 404, avoiding fit deviations or jamming caused by lateral displacement.

[0031] A collection box 5 is provided below the support base 2. The inlet of the collection box 5 is directly opposite the cleaning path of the brush bristles 405 of the sleeve 404. The collection box 5 is fitted with a collection container 6, and a handle 7 is fixedly connected to the outside of the collection container 6.

[0032] The brush bristles 405 rotate and sweep away the debris, which is thrown tangentially into the inlet of the collection box 5. Under the action of gravity, the debris falls naturally into the collection box 6. When cleaning is required, the collection box 6 can be taken out and emptied by pulling out the handle 7. This design realizes the automatic collection and centralized treatment of debris, avoids secondary pollution, and simplifies maintenance.

[0033] The fixing assembly includes a cylindrical outer shell 4021 with one open end, a cover plate 4022 fixedly installed at the open end, a connecting shaft 4023 fixedly connected to the outer side of the cover plate 4022, an air intake channel axially opened on the connecting shaft 4023, an air intake nozzle 4024 embedded in the air intake channel, a rubber airbag 4025 disposed inside the outer shell 4021, a cover body 4026 fixedly installed at one end of the rubber airbag 4025, an air intake hole communicating with the rubber airbag 4025 opened on the outer side of the cover body 4026, a plurality of keys 4027 fixedly installed circumferentially on the rubber airbag 4025, one end of each key 4027 protruding from the outer surface of the outer shell 4021 and abutting against the inner wall of the sleeve 404, anti-slip stripes on the surface of the key 4027, the outlet end of the air intake nozzle 4024 abutting against a sealing plate 4028, and the outer side of the sealing plate 4028 being connected to the cover body 4026 by a spring 4029;

[0034] When compressed gas is injected through the air inlet 4024, the gas pressure pushes the sealing plate 4028 to compress the spring 4029, causing the rubber airbag 4025 to expand and drive the key 4027 to extend outward radially, forming a tight anti-slip contact with the inner wall of the sleeve 404 to achieve reliable fixation. When disassembling, the ejector pin pushes open the sealing plate 4028 to release the gas, and the rubber airbag 4025 contracts to cause the key 4027 to retract, releasing the lock on the sleeve 404.

[0035] The drive assembly includes a motor 4031 fixedly mounted on one side of the support base 2. The output shaft of the motor 4031 is fixedly mounted with a drive wheel 4032, and the connecting shaft 4023 is fixedly mounted with a driven wheel 4033. The drive wheel 4032 and the driven wheel 4033 are connected by a belt 4034.

[0036] Among them, the motor 4031 drives the drive wheel 4032 to rotate, and drives the driven wheel 4033 to rotate synchronously through the belt 4034, which in turn causes the connecting shaft 4023 to drive the entire fixed assembly and sleeve 404 to make circumferential motion. This transmission structure realizes the continuous rotation and cleaning of the brush bristles 405, ensuring that the surface of the conveyor belt 3 is cleaned evenly.

[0037] In use, motor 4031 drives drive wheel 4032 to rotate, which in turn drives driven wheel 4033 to rotate synchronously via belt 4034. Connecting shaft 4023 moves in a circular motion with driven wheel 4033, transmitting power to the entire fixed assembly, causing sleeve 404 and brush 405 to rotate continuously at a set speed. The rotation direction of sleeve 404 is opposite to the running direction of conveyor belt 3. When conveyor belt 3 carries plastic bottles or scraps towards the feed inlet, brush 405 continuously sweeps across the lower surface of conveyor belt 3 in the opposite direction. The high-speed rotating tips of brush 405 penetrate the dust layer, directly peeling off loosely attached debris, applying alternating stress to sticky clumps, and breaking their bond with conveyor belt 3 through repeated brushing. The debris stripped off by the rotating brush 405 is thrown tangentially into the inlet of collection box 5 and falls naturally into collection box 6 under gravity. When cleaning is required, collection box 6 can be removed and emptied by pulling out handle 7.

[0038] When brush bristle 405 wear or cleaning efficiency decreases, first turn off the power to the equipment and ensure that the conveyor belt 3 stops running completely. The operator needs to prepare a new replacement sleeve 404 and a special ejector tool. Insert the ejector precisely into the center hole of the air inlet 4024 and apply appropriate pressure to open the sealing plate 4028. At this time, a clear airflow sound can be heard. The compressed gas in the rubber air bag 4025 is quickly discharged through the air inlet channel. As the air pressure decreases, the air bag gradually contracts, causing the circumferentially distributed keys 4027 to retract synchronously towards the axis. When all keys 4027 are completely disengaged from the inner wall of the sleeve 404, a clear loosening feeling will be felt, indicating that the pneumatic locking has been completely released. Keep the ejector in a continuous pressurized state, and hold the outer edge of the sleeve 404 with the other hand, and pull it outward smoothly along the axial direction. Since the shaft 4010 remains in an interference fit, the handle 408 must be rotated synchronously to cause the one-way screw 407 to gradually disengage the shaft 4010 from the sleeve 404. Once the shaft 4010 is completely disengaged, pull the sleeve 404 outwards to remove the old sleeve 404. Then, align the new sleeve 404 with the mounting opening of the outer casing 4021, ensuring the bristles 405 are facing correctly. Push the sleeve 404 in, and after confirming there is no jamming, rotate the handle 408 in the opposite direction to allow the shaft to rotate. Shaft 4010 is reinserted into sleeve 404. Finally, the ejector pin is pulled out, and the air source is connected to the air inlet 4024. Compressed air is slowly injected. When the pressure reaches the set threshold, the rubber air bladder 4025 expands evenly, pushing all keys 4027 to extend radially and tightly press against the inner wall of sleeve 404. Then, the injection of compressed air is stopped. At this time, spring 4029 pushes sealing plate 4028 to reset, forming a self-locking sealing structure. By manually rotating sleeve 404, it is confirmed that there is no relative slippage and the rotation is smooth.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic feeding plastic crusher, comprising a crusher body (1), wherein a support base (2) is provided at one end of the crusher body (1), a conveyor belt (3) is installed inside the support base (2), and one end of the conveyor belt (3) extends to the feed inlet of the crusher body (1), characterized in that: The lower end of the pulverizer body (1) is provided with a cleaning structure (4); The cleaning structure (4) includes a first connecting seat (401) fixedly installed at the bottom of the support base (2), a fixing component is rotatably connected to the middle of the first connecting seat (401), and a driving component is connected to one end of the fixing component; A sleeve (404) is fitted on the outside of the fixing component, and a plurality of bristles (405) are fixed on the outer circumferential surface of the sleeve (404); The support base (2) has an opening at its bottom, the sleeve (404) is located below the opening, and the top of the bristles (405) passes through the opening and contacts the lower surface of the conveyor belt (3).

2. The automatic feeding plastic crusher according to claim 1, characterized in that: The support base (2) is fixedly connected to the outer side of the connecting frame (406). The connecting frame (406) has a threaded hole on its outer side. A one-way screw (407) is threaded into the threaded hole. A handle (408) is fixedly installed at one end of the one-way screw (407), and a second connecting base (409) is connected to the other end through a bearing. The second connecting seat (409) is rotatably connected to a rotating shaft (4010) in the middle, and the rotating shaft (4010) is installed in the sleeve (404) with an interference fit.

3. The automatic feeding plastic crusher according to claim 2, characterized in that: A guide rod (4011) is fixedly connected to the outside of the second connecting seat (409), and one end of the guide rod (4011) passes through the connecting frame (406) and extends outward; The top of the connecting frame (406) is fixedly connected to a reinforcing plate (4061), and the other end of the reinforcing plate (4061) is fixedly connected to the outside of the support base (2).

4. The automatic feeding plastic crusher according to claim 1, characterized in that: A collection box (5) is provided below the support base (2), and the inlet of the collection box (5) is directly opposite the cleaning trajectory of the brush bristles (405) of the sleeve (404); The collection box (5) is fitted with a collection box (6), and a handle (7) is fixedly connected to the outside of the collection box (6).

5. The automatic feeding plastic crusher according to claim 1, characterized in that: The fixing component includes a cylindrical outer shell (4021) with one end open, and a cover plate (4022) is fixedly installed at the open end; The outer side of the cover plate (4022) is fixedly connected to a connecting shaft (4023), and the connecting shaft (4023) is axially provided with an air intake channel, and an air intake nozzle (4024) is embedded in the air intake channel; A rubber airbag (4025) is provided inside the outer shell (4021). A cover (4026) is fixedly installed at one end of the rubber airbag (4025). An air inlet is provided on the outer side of the cover (4026) to communicate with the rubber airbag (4025). The rubber airbag (4025) is circumferentially fixed with multiple key positions (4027). One end of each key position (4027) protrudes from the outer surface of the outer shell (4021) and abuts against the inner wall of the sleeve (404). The surface of the key position (4027) is provided with anti-slip stripes. The outlet end of the air inlet (4024) abuts against the sealing plate (4028), and the outer side of the sealing plate (4028) is connected to the cover (4026) by a spring (4029).

6. The automatic feeding plastic crusher according to claim 5, characterized in that: The drive assembly includes a motor (4031) fixedly mounted on one side of the support base (2), a drive wheel (4032) fixedly mounted on the output shaft of the motor (4031), a driven wheel (4033) fixedly mounted on the connecting shaft (4023), and the drive wheel (4032) and the driven wheel (4033) are connected by a belt (4034).

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