Recycled plastic recycling and crushing device

By combining a two-stage crushing system with a sieve screen, the problem of uneven crushing caused by the gaps between multi-stage grinding wheels is solved, achieving uniform crushing and efficient production of plastic particles.

CN223719924UActive Publication Date: 2025-12-26GUIZHOU RONGQIAN NEW ENERGY CO LTD
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Patent Information

Application Number
CN202423290688.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-26
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In existing technologies, gaps exist between multi-stage grinding wheels, resulting in some plastics not being completely crushed, leading to uneven crushing and affecting the quality and production efficiency of recycled plastics.

Method used

A two-stage crushing system is adopted, which uses a combination of large and small grinding wheels and a screen for screening. The initial and fine crushing of plastics is achieved by motor-driven gear linkage, and the screen position is stabilized by a fixing mechanism to ensure uniform crushing.

Benefits of technology

This method achieves uniform crushing of plastic granules, improves crushing efficiency and product quality, ensures that the crushed plastic granules meet the requirements, and reduces the need for rework.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of recycled plastic recycling, and discloses a recycled plastic recycling and crushing device which comprises a crushing box, a feeding port is fixedly connected to the top of the crushing box, a first motor is fixedly connected to the top of the rear side of the crushing box, and two first connecting rods are fixedly connected to the top end of the rear side in the crushing box. And gears are fixedly connected to the rear sides of the outer walls of the two first connecting rods, large grinding wheels are fixedly connected to the outer walls of the two first connecting rods, a second motor is fixedly connected to the middle of the rear side of the crushing box, and two second connecting rods are fixedly connected to the rear side of the interior of the crushing box. According to the plastic crushing device, the first motor is linked with the gear to enable the large grinding wheel to rotate, plastic is crushed into small blocks, the second motor drives the small grinding wheel to process large particles, the crushed plastic falls onto the leakage net, the small particles directly enter the charging box, the large particles are left on the net, the leakage net is taken out and poured back to the feeding port to be crushed again, and therefore uniform crushing of the plastic is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of recycling plastic, especially to a recycling plastic recycling and crushing device. BACKGROUND

[0002] Recycled plastic refers to the plastic raw material obtained by pretreatment, melt granulation, modification and other physical or chemical methods for processing and treating waste plastics. Compared with virgin plastic, the production cost of recycled plastic is lower because it utilizes waste plastic resources, reduces the dependence on virgin resources of petroleum, reduces the pollution of waste plastics to the environment, reduces energy consumption and carbon dioxide emissions, and has significant environmental benefits. Because recycled plastic needs to be pretreated, a recycled plastic recycling and crushing device is needed.

[0003] Because of the large differences in shape, size and texture of waste plastics, the size of the plastic particles after crushing in the crusher is not uniform. This not only affects the efficiency of subsequent cleaning, screening and granulation processes, but also may cause the quality of recycled plastic to be unstable, resulting in inconsistent product performance when used to produce recycled plastic products, affecting product quality. The existing technology uses multi-stage crushing grinding wheels to crush the plastic in multiple stages, making the size of the crushed plastic uniform. However, in actual use, because there is still a gap between the multi-stage grinding wheels, some of the plastic entering the multi-stage crushing is not completely crushed, leading to uneven crushing. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a recycled plastic recycling and crushing device, aiming to improve the problem of uneven crushing caused by the gap between the multi-stage grinding wheels, which still has some plastic that has not been completely crushed entering the multi-stage crushing.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a recycled plastic recycling and crushing device, comprising a crushing box, the top of the crushing box is fixedly connected with an inlet, the top of the rear side of the crushing box is fixedly connected with a motor one, the inside rear top end of the crushing box is fixedly connected with two connecting rods one, the outer wall rear side of the two connecting rods one is fixedly connected with a gear, the outer wall of the two connecting rods one is fixedly connected with a large grinding wheel, the middle part of the rear side of the crushing box is fixedly connected with a motor two, the inside rear side of the crushing box is fixedly connected with two connecting rods two, the outer wall of the two connecting rods two is fixedly connected with a small grinding wheel, the inside middle and lower part of the crushing box is provided with a mesh screen, the inside bottom of the crushing box is fixedly connected with a charging box, the left and right sides of the mesh screen are provided with a fixing mechanism, and the fixing mechanism is used to fix the mesh screen.

[0006] Further description of the above technical scheme:

[0007] The fixing mechanism comprises two fixing frames, the left and right sides of the two fixing frames are fixedly connected to the left and right sides of the middle and lower parts of the inner side of the crushing box, the front bottom of the two fixing frames is fixedly connected with two hinges I, the top of the plurality of hinges I is fixedly connected with a baffle, the top of the two baffles is fixedly connected with a pipe clamp.

[0008] As a further description of the above technical solution:

[0009] The front side of the crushing box is fixedly connected with a cover plate, and the front right end of the cover plate is fixedly connected with a handle.

[0010] As a further description of the above technical solution:

[0011] The left side of the cover plate is fixedly connected with two hinges II, and the rear side of the two hinges II is fixedly connected to the front bottom of the crushing box.

[0012] As a further description of the above technical solution:

[0013] The bottom of the crushing box is fixedly connected with a support column at four corners, and the bottom of the plurality of support columns is fixedly connected with an anti-skid sleeve.

[0014] As a further description of the above technical solution:

[0015] The bottom of the motor I and the motor II is fixedly connected with a support plate, and the left side of the two support plates is fixedly connected to the rear side of the crushing box.

[0016] As a further description of the above technical solution:

[0017] The bottom of the two support plates is fixedly connected with two inclined struts, and the bottom of the plurality of inclined struts is fixedly connected to the rear side of the crushing box.

[0018] As a further description of the above technical solution:

[0019] The inside of the two gears is fixedly connected to the rear side of the outer wall of the connecting rod I at equal intervals, and the inside of the two large grinding wheels is fixedly connected to the outer wall of the connecting rod I.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, motor one starts, gear linkage makes big grinding wheel synchronous high -speed rotation, and the preliminary broken small block of feeding plastic is formed, motor two drives small grinding wheel fine processing big particle, and the plastic after crushing falls to the mesh net, and the mesh size is screened, and the small particle is directly put into the loading box, and the big particle is left in the net, and the mesh net is taken out and crushed again in the feeding port, and the particle is put into the box until the particle reaches the standard, so that the uniform crushing of plastic is realized.

[0022] 2. In the utility model, the fixed frame and the baffle are connected through hinge one, the baffle can be opened and closed, the buckle fixer is closely matched with the pipe clamp, the baffle is locked to make it unable to rotate, when the mesh net is taken out, the buckle is manually opened, the baffle is turned down around the hinge, the mesh net is exposed, the big particle plastic is conveniently taken out for secondary crushing, under the vibration of the machine operation, the baffle can be effectively prevented from being accidentally opened, so that the mesh net is conveniently taken out and fixed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A perspective view of a regenerated plastic recycling and crushing device is proposed for the utility model;

[0024] Figure 2 A front view of a regenerated plastic recycling and crushing device is proposed for the utility model;

[0025] Figure 3 A right view of a regenerated plastic recycling and crushing device is proposed for the utility model;

[0026] Figure 4 A sectional view of the gear of a regenerated plastic recycling and crushing device is proposed for the utility model;

[0027] Figure 5 A split view of the hinge of a regenerated plastic recycling and crushing device is proposed for the utility model.

[0028] LEGEND:

[0029] 1, crushing box; 2, fixed mechanism; 201, fixed frame; 202, hinge one; 203, baffle; 204, buckle fixer; 205, pipe clamp; 3, feeding port; 4, motor one; 5, connecting rod one; 6, gear; 7, big grinding wheel; 8, motor two; 9, connecting rod two; 10, small grinding wheel; 11, mesh net; 12, loading box; 13, cover plate; 14, handle; 15, hinge two; 16, support column; 17, anti -skid sleeve; 18, support plate; 19, inclined strut. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts are within the protection scope of the present application.

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts are within the protection scope of the present application. Figure 1 Figure 4 The present application provides an embodiment: a regenerated plastic recycling and crushing device, comprising a crushing box 1, a feed inlet 3 is fixedly connected to the top of the crushing box 1, which is used for putting plastic, a motor one 4 is fixedly connected to the top of the rear side of the crushing box 1, two connecting rods one 5 are fixedly connected to the top of the rear side inside of the crushing box 1, the motor one 4 drives the right connecting rod one 5 to rotate, the outer wall rear side of the two connecting rods one 5 is fixedly connected with a gear 6, the outer wall of the two connecting rods one 5 is fixedly connected with a large grinding wheel 7, the right connecting rod one 5 rotates to make the right gear 6 rotate, which drives the gear 6 connected on the side to rotate, so that the large grinding wheel 7 rotates and crushes the plastic, a motor two 8 is fixedly connected to the middle of the rear side of the crushing box 1, two connecting rods two 9 are fixedly connected to the rear side inside of the crushing box 1, the outer wall of the two connecting rods two 9 is fixedly connected with a small grinding wheel 10, the motor two 8 drives the connecting rod two 9 to make the small grinding wheel 10 rotate, which secondarily crushes the plastic not crushed by the large grinding wheel 7, a mesh screen 11 is arranged at the middle and lower part of the inner side of the crushing box 1, which is used for screening smaller plastic, larger plastic is left on the mesh screen 11, the larger plastic is taken out of the mesh screen 11 and poured into the feed inlet 3 for second crushing, a charging box 12 is fixedly connected to the bottom of the inner side of the crushing box 1, the smaller plastic enters into the charging box 12, a fixing mechanism 2 is arranged at the left and right sides of the mesh screen 11, which is used for fixing the mesh screen 11;

[0032] ​Specifically, the plastic to be broken is put into the crushing box 1 from the feed inlet 3, the motor 4 is started, the motor 4 drives the right connecting rod 5 to rotate, since the outer walls of the two connecting rods 5 are fixedly connected with the mutually meshing gears 6, when the right connecting rod 5 rotates, the gears 6 meshed with the right connecting rod 5 rotate, and in turn drive the two large grinding wheels 7 to rotate synchronously, so that the plastic entering the crushing box 1 is preliminarily crushed, under the action of the large grinding wheels 7, most of the plastic is broken into smaller blocks, but some larger plastic blocks are not completely crushed, the motor 8 is started, the motor 8 drives the connecting rod 9 to rotate, so that the two small grinding wheels 10 rotate, and the plastic not crushed by the large grinding wheels 7 is crushed again, after two times of crushing, the size of the plastic particles is more uniform, the crushed plastic particles fall on the screen 11, the smaller plastic particles pass through the screen holes of the screen 11 and directly fall into the charging box 12 at the bottom of the inside of the crushing box 1, and the larger plastic particles are left on the screen 11, when it is necessary to process the larger plastic particles left on the screen 11, the screen 11 can be taken out, the larger plastic particles are poured into the feed inlet 3, and crushing is performed again until all the plastic particles can pass through the screen 11 and enter the charging box 12, so that the plastic can be effectively crushed into smaller particles.

[0033] Referring to Figure 5 The fixing mechanism 2 comprises two fixed frames 201, the left and right sides of the two fixed frames 201 are fixedly connected to the left and right sides of the middle lower part of the inside of the crushing box 1, the front bottoms of the two fixed frames 201 are fixedly connected with two hinges 202, the top of the plurality of hinges 202 is fixedly connected with a baffle 203, the baffle 203 can be opened and closed through the hinges 202, the top front of the two fixed frames 201 is fixedly connected with a buckle fastener 204, the top of the two baffles 203 is fixedly connected with a pipe clamp 205, the buckle fastener 204 can clamp the pipe clamp 205, so that the baffle 203 cannot be opened;

[0034] Specifically, the two fixed frames 201 are fixed to the left and right sides of the middle lower part of the inside of the crushing box 1, the front bottoms of the fixed frames 201 are provided with two hinges 202 respectively, the top of the hinges 202 is connected with the baffle 203, so that the baffle 203 can be easily opened and closed, and the screen 11 can be easily taken out, and the top front of the fixed frame 201 is fixedly connected with a buckle fastener 204, and the top of the baffle 203 is fixedly connected with a pipe clamp 205 which is accurately matched, when the buckle fastener 204 clamps the pipe clamp 205, the baffle 203 is fixed, so that the screen 11 cannot fall off due to the vibration generated by the start of the machine.

[0035] Referring to Figure 1 and Figure 2The front side of the crushing box 1 is fixedly connected with a cover plate 13, the front side right end of the cover plate 13 is fixedly connected with a handle 14, which is used for opening the cover plate 13 and taking out the screen 11, the left side of the cover plate 13 is fixedly connected with two hinges two 15, the rear side of the two hinges two 15 is fixedly connected on the front side bottom of the crushing box 1, the cover plate 13 is opened and closed through the hinges two 15, the bottom of the crushing box 1 is fixedly connected with a support column 16 at four corners, the bottom of the plurality of support columns 16 is fixedly connected with an anti-skid sleeve 17, which prevents the machine from moving when starting;

[0036] Specifically, the front part of the crushing box 1 is provided with a cover plate 13 connected with the crushing box 1 to provide protection for the inside of the equipment, the front side right end of the cover plate 13 is fixed with a handle 14, when it is necessary to take out the screen 11 for cleaning or handle larger plastic particles, the operator only needs to hold the handle 14 to conveniently open the cover plate 13, on the left side of the cover plate 13, two hinges two 15 are connected with the front side bottom of the crushing box 1, and the cover plate 13 is smoothly opened and closed by virtue of the flexible rotating characteristics of the hinges two 15, the bottom of the crushing box 1 is fixed with a support column 16 at four corners, and the anti-skid sleeve 17 at the bottom of the support column 16 can effectively increase the friction to avoid the machine from being randomly displaced when working.

[0037] Referring to Figure 3 The bottom of the motor one 4 and the motor two 8 is fixedly connected with a support plate 18, the left side of the two support plates 18 is fixedly connected on the rear side of the crushing box 1, which is used for supporting the motor one 4 and the motor two 8, the bottom of the two support plates 18 is fixedly connected with two inclined struts 19, the bottom of the plurality of inclined struts 19 is fixedly connected on the rear side of the crushing box 1, which increases the support of the two support plates 18, the inside of the two gears 6 is fixedly connected on the rear side of the outer wall of the connecting rod one 5 at equal intervals, and the inside of the two large grinding wheels 7 is fixedly connected on the outer wall of the connecting rod one 5 at equal intervals;

[0038] Specifically, the bottom of the motor one 4 and the motor two 8 is fixed with a support plate 18, the left side of the support plate 18 is connected on the crushing box 1 to provide stable support for the motor one 4 and the motor two 8, and ensure that the motor one 4 and the motor two 8 do not shake during operation, the bottom of the two support plates 18 further extends downward two inclined struts 19, the bottom of the inclined struts 19 is fixed on the rear side of the crushing box 1, which further strengthens the support of the support plate 18, the two gears 6 are accurately fixed on the rear side of the outer wall of the connecting rod one 5 at equal intervals, and the two large grinding wheels 7 are also fixed on the outer wall of the connecting rod one 5 at equal intervals, which cooperates to realize efficient crushing.

[0039] Working principle: the motor 4 starts to drive the right connecting rod 5 to rotate, since the outer wall of the two connecting rods 5 is fixedly connected with the mutually meshing gear 6, when the right connecting rod 5 rotates, the meshing gear 6 on the side will rotate, realizing the synchronous rotation of the two large grinding wheels 7, when the plastic enters the crushing box 1 from the feeding port 3, under the high-speed rotation of the large grinding wheel 7, most of the plastic is crushed into smaller blocks, the motor 8 is started, the motor 8 drives the connecting rod 9 to rotate, and then drives the two small grinding wheels 10 to rotate, and the larger plastic blocks are crushed more finely, the plastic particles are further refined, after two times of crushing, the size of the plastic particles is more uniform, the crushing effect and efficiency are improved, the crushed plastic particles fall on the screen 11, the mesh size of the screen 11 is designed according to the size of the plastic particles to be crushed, the smaller plastic particles can pass through the mesh of the screen 11 and directly fall into the charging box 12 at the bottom of the inside of the crushing box 1, while the larger plastic particles are left on the screen 11 and cannot pass through the mesh, when it is needed to process the larger plastic particles left on the screen 11, the screen 11 can be taken out, the larger plastic particles are poured into the feeding port 3 and crushed again until all the plastic particles can pass through the screen 11 and enter the charging box 12, the charging box 12 collects the smaller plastic particles meeting the requirements, thereby realizing the uniform crushing of the plastic;

[0040] Moreover, the hinge one 202 at the bottom of the front side of the fixed frame 201 connects the baffle 203 and the fixed frame 201, the hinge one 202 has the rotatable characteristic, so that the baffle 203 can be opened and closed around the hinge one 202, when the baffle 203 is in the closed position, the buckle fixing device 204 at the top of the front side of the fixed frame 201 is matched with the pipe buckle 205 at the top of the baffle 203, when the buckle fixing device 204 clamps the pipe buckle 205, the baffle 203 cannot rotate, when it is needed to take out the screen 11, the buckle fixing device 204 can be manually opened from the pipe buckle 205, the baffle 203 is turned down around the hinge one 202 and opened, so that the position of the screen 11 is exposed, and the screen 11 can be taken out to crush the larger plastic particles again, after the machine is started, vibration will be generated, since the buckle fixing device 204 is matched with the pipe buckle 205, it is ensured that the baffle 203 will not be accidentally opened due to the vibration, and it is ensured that the screen 11 is always in the stable position during the crushing process.

[0041] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A recycling plastic recovery crushing device comprising a crushing box (1), characterized in that: The top of the crushing box (1) is fixedly connected with a feeding port (3), the top of the rear side of the crushing box (1) is fixedly connected with a motor one (4), the inside rear top end of the crushing box (1) is fixedly connected with two connecting rods one (5), the outer wall rear side of two connecting rods one (5) is fixedly connected with a gear (6), the outer wall of two connecting rods one (5) is fixedly connected with a large grinding wheel (7), the rear middle of the crushing box (1) is fixedly connected with a motor two (8), the inside rear side of the crushing box (1) is fixedly connected with two connecting rods two (9), the outer wall of two connecting rods two (9) is fixedly connected with a small grinding wheel (10), the inside middle and lower part of the crushing box (1) is provided with a screen (11), the inside bottom of the crushing box (1) is fixedly connected with a charging box (12), the left and right sides of the screen (11) are provided with a fixing mechanism (2), and the fixing mechanism (2) is used for fixing the screen (11).

2. A recycled plastic recycling and crushing device according to claim 1, characterized in that: The fixing mechanism (2) comprises two fixing frames (201), the left and right sides of two fixing frames (201) are fixedly connected to the inside middle and lower parts of the left and right sides of the crushing box (1), the front bottom of two fixing frames (201) is fixedly connected with two hinges one (202), the top of a plurality of hinges one (202) is fixedly connected with a baffle (203), the top front side of two fixing frames (201) is fixedly connected with a buckle fixing device (204), and the top of two baffles (203) is fixedly connected with a pipe clamp (205).

3. The recycled plastic recycling and crushing device according to claim 1, characterized in that: The front side of the crushing box (1) is fixedly connected with a cover plate (13), and the front right end of the cover plate (13) is fixedly connected with a handle (14).

4. A recycled plastic recycling and crushing device according to claim 3, characterized in that: The left side of the cover plate (13) is fixedly connected with two hinges two (15), and the rear side of two hinges two (15) is fixedly connected to the front bottom of the crushing box (1).

5. The recycled plastic recycling and crushing device according to claim 1, characterized in that: The bottom of the crushing box (1) is fixedly connected with a support column (16), and the bottom of a plurality of support columns (16) is fixedly connected with an anti-skid sleeve (17).

6. A recycled plastic recycling and crushing device according to claim 1, characterized in that: The bottom of the motor one (4) and the motor two (8) is fixedly connected with a support plate (18), and the left side of two support plates (18) is fixedly connected to the rear side of the crushing box (1).

7. A recycled plastic recycling and crushing device according to claim 6, characterized in that: The bottom of two support plates (18) is fixedly connected with two inclined struts (19), and the bottom of a plurality of inclined struts (19) is fixedly connected to the rear side of the crushing box (1).

8. The recycled plastic recycling and crushing device according to claim 1, characterized in that: The inside of two gears (6) is fixedly connected to the outer wall rear side of the connecting rod one (5) at equal intervals, and the inside of two large grinding wheels (7) is fixedly connected to the outer wall of the connecting rod one (5).