Plastic particle crushing and feeding device for shoe sole injection molding

By designing a plastic granule crushing and feeding device for shoe sole injection molding, the problem of poor feeding caused by residue during the crushing process of plastic granules was solved, maximizing resource utilization and equipment operation stability, and reducing maintenance costs and workload.

CN224012762UActive Publication Date: 2026-03-20WENZHOU HUADELI SHOES CO LTD
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Patent Information

Application Number
CN202520671493.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-20
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

During the plastic pellet crushing process, some pellets remain at the feed inlet, causing feeding difficulties, affecting the operation of the crusher, increasing maintenance costs and the labor intensity of the staff.

Method used

A plastic granule crushing and feeding device for shoe sole injection molding was designed, including an inclined feeding box, a guiding component, a distributing component and a crushing component. Residual granules are cleaned by channels, push plates, springs and pull plates. Particles are processed in batches by motor-driven guide rollers and limit plates. Gear and rack work together to crush the granules, and the discharge slope improves the discharge efficiency.

Benefits of technology

It maximizes resource utilization, reduces the frequency of manual cleaning, lowers the risk of equipment blockage and wear, improves crushing efficiency and equipment lifespan, and reduces the labor intensity of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of plastic particle processing, and particularly relates to a plastic particle crushing and feeding device for sole injection molding, which comprises a crushing box, a maintenance box is assembled in the middle of the side wall of the crushing box; by arranging the channel, the push plate, the spring, the connecting rod and the pull plate, plastic particles remaining on the side wall of the feeding box can be cleaned into the pulverizer and converted into available plastic powder or particles, maximum utilization of resources is achieved, meanwhile, workers do not need to frequently and manually clean the particles on the side wall of the feeding box, and the labor intensity of workers is reduced. The plastic particles on the side wall of the feeding box are regularly cleaned, so that the burden on the body is reduced, the labor intensity of workers is reduced, and if the plastic particles on the side wall of the feeding box are accumulated for a long time, the feeding box is blocked or worn, and the maintenance cost of the crusher is increased, so that the plastic particles on the side wall of the feeding box are regularly cleaned, and the crushing efficiency is improved. And a good operation state of the crusher can be kept, and the maintenance cost caused by equipment failure is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plastic particle processing, and specifically relates to a plastic particle crushing and feeding device for sole injection molding. BACKGROUND

[0002] Plastic particles, also known as plastic particles, are a form of high molecular organic compounds, are basic raw materials in the plastic industry, and are small granular substances processed from plastic raw materials through specific processes. Due to its unique physical and chemical properties, such as density, water absorption, fluidity, stability, and oxidation resistance, and usually also has the characteristics of small specific gravity, light weight, high strength, good insulation, chemical corrosion resistance, and good sound insulation effect, it is widely used in various processing technologies.

[0003] In the prior art, the staff will crush the plastic particles and then melt them. The melted plastic is injected into the sole mold through the injection device of the injection molding machine. Then, the cooled and solidified sole is taken out of the mold, and the excess burrs and flash are removed to obtain a sole that meets the standard.

[0004] After long-term use and observation, it is found that during the process of processing and crushing the plastic particles, part of the plastic particles will be left in the feeding port, causing the feeding of the crusher to be not smooth.

[0005] Therefore, the utility model provides a plastic particle crushing and feeding device for sole injection molding. Utility model content

[0006] In order to make up for the shortcomings of the prior art and solve at least one problem in the background art, a plastic particle crushing and feeding device for sole injection molding is provided.

[0007] The utility model solves its technical problem adopts the technical scheme: A kind of plastic granule crushing and feeding device for shoe sole injection molding, including crushing box;The maintenance box is assembled in the middle part of the side wall of the crushing box;The fixed box is assembled in the middle part of the side wall of the crushing box;The inlet box is fixedly connected in the middle part of the side wall of the crushing box;The inlet box is provided with inclined structure;The outlet box is fixedly connected in the middle part of the side wall of the crushing box;The crushing box, inlet box and outlet box are all hollow and are communicated;The inlet box inner side wall middle part is equipped with feeding assembly;The fixed rod is fixed in the middle part of the inner side wall of the top of the inlet box;The movable plate is rotatably connected in the middle part of the side wall of the fixed rod;Torsion spring is equipped between the movable plate and the fixed rod;The guide component is equipped in the middle part of the inner side wall of the crushing box;The distribution component is equipped in the middle part of the inner side wall of the crushing box;The distribution component is below guide component;The crushing component is equipped in the middle part of the inner side wall of the crushing box;The crushing component is below distribution component;The feeding assembly includes channel;The channel is a pair of and symmetrically set on the side wall of inlet box;The push plate is slidably connected in the middle part of the inner side wall of the channel;The plurality of springs are fixed in the middle part of the side wall of the push plate;The plurality of springs are fixed between push plate and inlet box;The pair of connecting rods are fixed in the middle part of the side wall of the spring;The pair of connecting rods are respectively arranged in the inside of channel;The pull plate is fixed in the other end of the connecting rod;The pull plate slides in the inside of channel;This step is by setting channel, push plate, spring, connecting rod and pull plate, can the plastic granule remaining on the side wall of inlet box is cleaned to crusher, it is converted into usable plastic powder or granule, realizes the maximization utilization of resource, improves overall production efficiency, simultaneously this setting no longer needs staff to clean the granule on the side wall of inlet box frequently manually, reduces the action of long time bending, squatting etc. The burden to body is caused, reduce the labor intensity of staff, and the plastic granule on the side wall of inlet box is accumulated for a long time, can cause the blockage or wear of inlet box, increase the maintenance cost of crusher, therefore regularly clean the granule on the side wall of inlet box, can keep the good running state of crusher, reduce the repair cost caused by equipment failure.

[0008] Preferably, the material guiding assembly comprises a motor; the motor is fixed on the side wall of the crushing box; the motor is arranged in the fixed box; the output end of the motor is drivingly connected with a synchronous belt; the inner side wall of the synchronous belt is drivingly connected with a first movable shaft; the side wall of the first movable shaft is fixed with a material guiding roller; the material guiding roller rotates in the crushing box; the side wall of the material guiding roller is provided with a material groove; a pair of limiting plates are fixed on the inner side wall of the crushing box; the limiting plates and the material guiding roller are slidingly connected; this step can crush the plastic particles in batches by arranging the motor, the synchronous belt, the first movable shaft, the material guiding roller and the material groove, so that part of the plastic particles will first enter the spring in the push plate after being poured into the crushing box, so that the crushing box can process an appropriate amount of plastic particles during each crushing process, thereby maintaining the best crushing state and efficiency, reducing the poor crushing effect caused by excessive plastic particles at one time, and guiding the plastic particles that are not accurately dropped into the material groove during the rotation of the material guiding roller, so that the plastic particles are guided into the material groove.

[0009] Preferably, the material guiding assembly comprises a second movable shaft; the second movable shaft is fixed on the inner wall of the crushing box; a guide plate is rotatably connected to the middle of the side wall of the second movable shaft; the guide plate is arranged below the material guiding roller; a shunt plate is fixed to the middle of the side wall of the guide plate; the shunt plate is arranged in a circumferential array on the side wall of the guide plate; this step can pour the crushing assembly in batches into the crushing assembly, so that the crushing assembly can maintain appropriate load during each crushing process, reduce overload or idle operation, thereby improving the crushing efficiency, and the batch pouring of plastic particles can reduce the amount of material for each crushing, thereby reducing the wear speed of the crusher and prolonging the service life.

[0010] Preferably, the crushing assembly comprises a first gear; the first gear is fixed to the output end of the motor; the first gear is arranged in the fixed box; a first crushing roller is fixed to the middle of the side wall of the first gear; the first crushing roller rotates in the crushing box; the first crushing roller is arranged below the guide plate; the first gear is meshingly provided with a second gear; the second gear is fixed to the middle of the side wall of the second gear; a second crushing roller is fixed to the second gear; the second crushing roller rotates in the crushing box; the second crushing roller is arranged below the guide plate; this step can crush the plastic particles by the mutual extrusion and grinding action of the first crushing roller and the second crushing roller, so that the plastic particles are crushed into more uniform particles, which is beneficial to the needs of subsequent processing and utilization, and improves the quality and stability of the product.

[0011] Preferably, a plurality of elastic cloths are fixedly connected to the middle part of the inner side wall of the groove; the elastic cloth is of elastic material; this step can tightly fit the edge of the groove by setting the elastic cloth to form an effective barrier, thereby reducing the situation that the plastic particles enter the inside of the groove and cause jamming.

[0012] Preferably, a discharge slope is fixedly connected to the inner side wall of the bottom of the discharge box; the discharge slope is of an inclined structure; this step can make the plastic particles after being crushed flow more smoothly from the crushing box to the discharge box by gravity, thereby reducing the risk of accumulation and blockage of the particles during the discharging process and improving the discharging efficiency.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The shoe sole injection molding plastic particle crushing and feeding device, by setting the groove, the push plate, the spring, the connecting rod and the pull plate, can clean the plastic particles remaining on the side wall of the feeding box into the crusher, convert them into usable plastic powder or particles, realize the maximum utilization of resources, improve the overall production efficiency, and at the same time, this setting no longer needs the staff to manually clean the particles on the side wall of the feeding box frequently, reduces the action of long-time bending, squatting and other actions that cause burden to the body, reduces the labor intensity of the staff, and if the plastic particles on the side wall of the feeding box are accumulated for a long time, the feeding box will be blocked or worn, increasing the maintenance cost of the crusher, therefore, regularly cleaning the particles on the side wall of the feeding box can keep the crusher in good running state and reduce the maintenance cost caused by equipment failure.

[0015] 2. The shoe sole injection molding plastic particle crushing and feeding device, by setting the motor, the synchronous belt, the first movable shaft, the guide roller and the trough, can crush the plastic particles poured into the inside of the crushing box in batches, part of the plastic particles will first enter the spring inside the push plate after being poured, so that the inside of the crushing box processes an appropriate amount of plastic particles each time of crushing, thereby keeping the best crushing state and efficiency, and reducing the situation that the crushing effect is poor due to too much plastic particles being put in at one time, and by setting the limiting plate, the plastic particles not accurately falling into the trough during the rotation of the guide roller can be guided, so that the part of the plastic particles are guided into the trough. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings.

[0017] Figure 1 is the perspective view of the utility model;

[0018] Figure 2 is the sectional view of the crushing box in the utility model;

[0019] Figure 3is a cooperation structure diagram of the material guide roller and the crushing roller in the utility model;

[0020] Figure 4 is a sectional view of the material inlet box in the utility model.

[0021] Legend:

[0022] 1, crushing box; 11, maintenance box; 12, fixed box; 13, material inlet box; 14, fixed rod; 15, movable plate; 16, discharge box; 2, channel; 21, push plate; 22, spring; 23, connecting rod; 24, pull plate; 3, motor; 31, synchronous belt; 32, first movable shaft; 33, material guide roller; 34, trough; 35, limiting plate; 4, second movable shaft; 41, guide plate; 42, shunt plate; 5, first gear; 51, first crushing roller; 52, second gear; 53, second crushing roller; 6, elastic cloth; 7, discharge slope. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The specific embodiments are given below.

[0025] As Figures 1 to 4As shown, the utility model discloses a kind of plastic granule crushing and feeding device for shoe sole injection molding, including crushing box 1;Crushing box 1 side wall middle part is equipped with access box 11;Crushing box 1 side wall middle part is equipped with fixed box 12;Crushing box 1 side wall middle part is fixedly connected with inlet box 13;Inlet box 13 is arranged in inclined structure;Crushing box 1 side wall middle part is fixedly connected with discharge box 16;Crushing box 1, inlet box 13 and discharge box 16 are all hollowly arranged and are communicated;Inlet box 13 inner side wall middle part is equipped with feeding assembly;Inlet box 13 top inner side wall middle part is fixed with fixed rod 14;Fixed rod 14 side wall middle part is rotatably connected with movable plate 15;Between movable plate 15 and fixed rod 14, torsion spring is equipped;Crushing box 1 inner side wall middle part is equipped with guide component;Crushing box 1 inner side wall middle part is equipped with distribution component;Distribution component is equipped below guide component;Crushing box 1 inner side wall middle part is equipped with crushing component;Crushing component is equipped below distribution component;When working, staff pours the plastic granule for shoe sole injection molding to be crushed into inlet box 13 inside, because inlet box 13 is arranged in inclined structure, plastic granule will slide along inlet box 13 and push open movable plate 15, at this time movable plate 15 will rotate on fixed rod 14 side wall, so that plastic granule passes movable plate 15 and enters crushing box 1 inside, and movable plate 15 will push feeding assembly when rotating, and feeding assembly will push plastic granule remaining at the bottom of inlet box 13 into crushing box 1 inside, when plastic granule enters crushing box 1 and no longer pushes movable plate 15, feeding assembly will return to original position, when plastic granule enters crushing box 1, plastic granule will first enter guide component, and guide component will batch pour plastic granule on distribution component, and distribution component will scatter the plastic granule that falls, and then scattered plastic granule will be crushed by crushing component, and finally crushed plastic granule is collected by discharge box 16.

[0026] As Figures 2 to 4As shown, the feeding assembly includes a channel 2; the channel 2 is a pair and symmetrically arranged on the side wall of the feeding box 13; the middle part of the inner side wall of the channel 2 is slidingly connected with a push plate 21; the middle part of the side wall of the push plate 21 is fixed with a plurality of springs 22; the plurality of springs 22 are fixed between the push plate 21 and the feeding box 13; the middle part of the side wall of the spring 22 is fixed with a pair of connecting rods 23; the pair of connecting rods 23 are respectively arranged inside the channel 2; the other end of the connecting rod 23 is fixed with a pull plate 24; the pull plate 24 slides inside the channel 2; during work, when the plastic particles slide along the feeding box 13 and push open the movable plate 15, the movable plate 15 will rotate on the side wall of the fixed rod 14, so that the plastic particles pass through the movable plate 15 and enter the inside of the crushing box 1, and the movable plate 15 will push the pull plate 24 when rotating, so that the pull plate 24 slides inside the channel 2 with the connecting rods 23 on both sides, and the connecting rod 23 will push the push plate 21 to slide along the bottom of the feeding box 13 when moving, pushing the plastic particles remaining on the side wall of the feeding box 13 into the inside of the crushing box 1, when the plastic particles no longer push the movable plate 15, the movable plate 15 returns to the original position, and the push plate 21 and the pull plate 24 also return to the original position under the action of the plurality of springs 22, this step can clean the plastic particles remaining on the side wall of the feeding box 13 into the crusher by setting the channel 2, the push plate 21, the spring 22, the connecting rod 23 and the pull plate 24, convert them into usable plastic powder or particles, maximize the use of resources, improve the overall production efficiency, at the same time, this setting no longer needs the staff to manually clean the particles on the side wall of the feeding box 13 frequently, reduces the action of long-time bending, squatting and other actions that cause burden to the body, reduces the labor intensity of the staff, and if the plastic particles on the side wall of the feeding box 13 accumulate for a long time, it will cause blockage or wear of the feeding box 13, increase the maintenance cost of the crusher, therefore, regular cleaning of the particles on the side wall of the feeding box 13 can keep the crusher in good running state and reduce the repair cost caused by equipment failure.

[0027] As Figure 2 and Figure 3As shown, the motor 3 is arranged inside the fixed box 12; the output end of the motor 3 is drivingly connected with a synchronous belt 31; the inner side wall of the synchronous belt 31 is drivingly connected with a first movable shaft 32; the side wall of the first movable shaft 32 is fixed with a material guide roller 33; the material guide roller 33 rotates inside the crushing box 1; the side wall of the material guide roller 33 is provided with a material groove 34; a pair of limiting plates 35 are fixed on the inner side wall of the crushing box 1; the limiting plates 35 and the material guide roller 33 are slidingly connected; during operation, the plastic particles to be crushed are poured into the crushing box 1 from the feeding box 13, at this time, the poured plastic particles will be first accumulated in the material groove 34 under the limitation of the pair of limiting plates 35, then the motor 3 is started, the output end of the motor 3 will drive the synchronous belt 31 to rotate, so that the synchronous belt 31 drives the first movable shaft 32 to rotate, the first movable shaft 32 will rotate with the material guide roller 33 inside the crushing box 1, during the rotation of the material guide roller 33, when the material groove 34 provided on the side wall of the material guide roller 33 rotates to the bottom of the material guide roller 33, the plastic particles in the material groove 34 will be poured onto the material distribution assembly below, through the arrangement of the motor 3, the synchronous belt 31, the first movable shaft 32, the material guide roller 33 and the material groove 34, the poured plastic particles in the crushing box 1 can be crushed in batches, part of the plastic particles will first enter the spring 22 inside the push plate 21 after being poured, so that the crushing box 1 processes an appropriate amount of plastic particles during each crushing, thereby maintaining the best crushing state and efficiency, and reducing the situation that the crushing effect is poor due to too much plastic particles being poured at one time, through the arrangement of the limiting plates 35, the plastic particles that are not accurately dropped into the material groove 34 during the rotation of the material guide roller 33 can be guided, so that the plastic particles are guided into the material groove 34.

[0028] As shown in Figure 2 and Figure 3 , the material distribution assembly comprises a second movable shaft 4; the second movable shaft 4 is fixed on the inner wall of the crushing box 1; the side wall of the second movable shaft 4 is rotatably connected with a flow guide plate 41; the flow guide plate 41 is arranged below the material guide roller 33; the side wall of the flow guide plate 41 is fixedly connected with a shunt plate 42; the shunt plate 42 is a plurality of and arranged in a circumferential array on the side wall of the flow guide plate 41; during operation, the plastic particles to be crushed are poured onto the side wall of the flow guide plate 41 from the material groove 34, at this time, the plastic particles will fall onto the surface of the flow guide plate 41 and fall into different shunt plates 42, and the flow guide plate 41 will start to rotate under the gravity of the plastic particles, so that the flow guide plate 41 will pour the plastic particles in the shunt plate 42 into the crushing assembly during rotation, through the arrangement of the second movable shaft 4, the flow guide plate 41 and the shunt plate 42, the crushing assembly can be poured into the crushing assembly in batches, so that the crushing assembly can maintain appropriate load during each crushing, reducing overload or idle running, thereby improving the crushing efficiency, and the batch pouring of plastic particles can reduce the amount of material crushed each time, thereby reducing the wear speed of the crusher and prolonging the service life.

[0029] As shown in Figure 2and Figure 3 As shown, the crushing assembly includes a first gear 5; the first gear 5 is fixedly connected to the output end of the motor 3; the first gear 5 is located inside the fixed box 12; a first crushing roller 51 is fixedly connected to the middle of the side wall of the first gear 5; the first crushing roller 51 rotates inside the crushing box 1; the first crushing roller 51 is located below the guide plate 41; a second gear 52 is meshed with the first gear 5; a second crushing roller 53 is fixedly connected to the middle of the side wall of the second gear 52; the second crushing roller 53 rotates inside the crushing box 1; the second crushing roller 53 is located below the guide plate 41; during operation, when the motor 3 rotates, the output end of the motor 3 drives the first gear 5 to rotate. When gear 5 rotates, it will cause the first crushing roller 51 to rotate inside the crushing chamber 1. Because the first gear 5 and the second gear 52 are meshed, when the first gear 5 rotates, it will drive the second gear 52 to rotate. When the second gear 52 rotates, it will drive the second crushing roller 53 to rotate simultaneously inside the crushing chamber 1. This step of setting the first gear 5, the first crushing roller 51, the second gear 52 and the second crushing roller 53 can crush the plastic particles into a more uniform particle size through the mutual squeezing and grinding action of the first crushing roller 51 and the second crushing roller 53, which is beneficial to the needs of subsequent processing and utilization, and improves the quality and stability of the product.

[0030] like Figures 1 to 4 As shown, multiple elastic fabrics 6 are fixed to the middle of the inner wall of the channel 2; the elastic fabrics 6 are made of elastic material; this step, by setting the elastic fabrics 6, can closely fit the edge of the channel 2, forming an effective barrier, reducing the possibility of plastic particles entering the channel 2 and causing jamming.

[0031] like Figures 1 to 3 As shown, a discharge slope 7 is fixed to the inner side wall of the bottom of the discharge box 16; the discharge slope 7 is an inclined structure; by setting the discharge slope 7, this step allows the crushed plastic particles to flow more smoothly from the crushing box 1 to the discharge box 16 by gravity, reducing the risk of particle accumulation and blockage during the discharge process and improving the discharge efficiency.

[0032] Working principle: the staff will be pulverized into the bottom of the injection molding of plastic particles into the inside of the feed tank 13, because the feed tank 13 is inclined structure, plastic particles will slide along the feed tank 13 and open the movable plate 15, at this time the movable plate 15 will rotate on the side wall of the fixed rod 14, so that the plastic particles through the movable plate 15 into the inside of the crushing box 1, and the movable plate 15 will push the feeding assembly when rotating, feeding assembly will push the plastic particles left in the bottom of the feed tank 13 into the inside of the crushing box 1, when the plastic particles into the crushing box 1 no longer push the movable plate 15, the feeding assembly will return to the original position, when the plastic particles into the crushing box 1, the plastic particles will first enter the guide assembly, the guide assembly will batch the plastic particles on the distribution assembly, the distribution assembly will scatter the plastic particles, and then the plastic particles will be crushed by the crushing assembly, and the crushed plastic particles are finally collected by the discharge tank 16. When the plastic particles slide along the feed tank 13 and open the movable plate 15, the movable plate 15 will rotate on the side wall of the fixed rod 14, so that the plastic particles through the movable plate 15 into the inside of the crushing box 1, and the movable plate 15 will push the pull plate 24 when rotating, so that the pull plate 24 with the connecting rod 23 on both sides slides in the channel 2, the connecting rod 23 moves will push the push plate 21 along the bottom of the feed tank 13, the plastic particles left in the side wall of the feed tank 13 will be pushed into the inside of the crushing box 1, when the plastic particles no longer push the movable plate 15, the movable plate 15 returns to the original position, and the push plate 21 and the pull plate 24 also return to the original position under the action of the spring 22. The plastic particles to be pulverized are poured from the feed tank 13 into the inside of the crushing box 1, and at this time the poured plastic particles will be first accumulated in the chute 34 under the limitation of a pair of limit plates 35, and then the motor 3 is started. The output end of the motor 3 will drive the synchronous belt 31 to rotate, so that the synchronous belt 31 drives the first movable shaft 32 to rotate, and the first movable shaft 32 rotates will make the guide roller 33 rotate in the crushing box 1. In the process of rotating the guide roller 33, when the chute 34 opened on the side wall of the guide roller 33 rotates to the bottom of the guide roller 33, the plastic particles in the chute 34 will fall on the distribution assembly below. The plastic particles to be pulverized are poured from the chute 34 onto the side wall of the flow guide plate 41, at this time the plastic particles will fall on the surface of the flow guide plate 41 and fall into different flow distribution plates 42, and the flow guide plate 41 will start to rotate under the gravity of the plastic particles, so that the flow guide plate 41 will pour the plastic particles in the flow distribution plate 42 into the crushing assembly when rotating. When the motor 3 rotates, the output end of the motor 3 will drive the first gear 5 to rotate, and the first gear 5 will rotate when the first gear 5 rotates will make the first crushing roller 51 rotate in the crushing box 1, because the first gear 5 and the second gear 52 are meshing, when the first gear 5 rotates will drive the second gear 52 to rotate, and the second gear 52 will rotate when the second gear 52 rotates will make the second crushing roller 53 rotate in the crushing box 1 at the same time.

[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic granule crushing and feeding device for shoe sole injection molding, comprising a crushing box (1); characterized in that: A maintenance box (11) is installed in the middle of the side wall of the crushing box (1); a fixing box (12) is installed in the middle of the side wall of the crushing box (1); a feeding box (13) is fixedly connected to the middle of the side wall of the crushing box (1); the feeding box (13) is set with an inclined structure; a discharge box (16) is fixedly connected to the middle of the side wall of the crushing box (1); the crushing box (1), the feeding box (13) and the discharge box (16) are all hollow and connected; a feeding component is provided in the middle of the inner side wall of the feeding box (13); A fixing rod (14) is fixed in the middle of the inner side wall of the top of the feed box (13); a movable plate (15) is rotatably connected to the middle of the side wall of the fixing rod (14); a torsion spring is provided between the movable plate (15) and the fixing rod (14); a material guiding assembly is provided in the middle of the inner side wall of the crushing box (1); a material distributing assembly is provided in the middle of the inner side wall of the crushing box (1); the material distributing assembly is located below the material guiding assembly; a crushing assembly is provided in the middle of the inner side wall of the crushing box (1); the crushing assembly is located below the material distributing assembly.

2. The plastic granule crushing and feeding device for shoe sole injection molding according to claim 1, characterized in that: The feeding assembly includes a channel (2); the channel (2) is a pair and symmetrically opened on the side wall of the feed box (13); a push plate (21) is slidably connected to the middle of the inner side wall of the channel (2); a plurality of springs (22) are fixed to the middle of the side wall of the push plate (21); the plurality of springs (22) are fixed between the push plate (21) and the feed box (13); a pair of connecting rods (23) are fixed to the middle of the side wall of the springs (22); the pair of connecting rods (23) are respectively located inside the channel (2); a pull plate (24) is fixed to the other end of the connecting rod (23); the pull plate (24) slides inside the channel (2).

3. The plastic granule crushing and feeding device for shoe sole injection molding according to claim 1, characterized in that: The material guiding assembly includes a motor (3); the motor (3) is fixed on the side wall of the crushing box (1); the motor (3) is located inside the fixed box (12); the output end of the motor (3) is connected to a synchronous belt (31); the middle of the inner side wall of the synchronous belt (31) is connected to a first movable shaft (32); a guide roller (33) is fixed in the middle of the side wall of the first movable shaft (32); the guide roller (33) rotates inside the crushing box (1); a material trough (34) is opened in the middle of the side wall of the guide roller (33); a pair of limiting plates (35) are fixed in the middle of the inner side wall of the crushing box (1); the limiting plates (35) and the guide roller (33) are slidably connected.

4. The plastic granule crushing and feeding device for shoe sole injection molding according to claim 1, characterized in that: The material distribution assembly includes a second movable shaft (4); the second movable shaft (4) is fixed on the inner wall of the crushing box (1); a guide plate (41) is rotatably connected to the middle of the side wall of the second movable shaft (4); the guide plate (41) is located below the guide roller (33); a diverter plate (42) is fixed to the middle of the side wall of the guide plate (41); there are multiple diverter plates (42) and they are arranged in a circular array on the side wall of the guide plate (41).

5. The plastic granule crushing and feeding device for shoe sole injection molding according to claim 1, characterized in that: The crushing assembly includes a first gear (5); the first gear (5) is fixedly connected to the output end of the motor (3); the first gear (5) is located inside the fixed box (12); a first crushing roller (51) is fixedly connected to the middle of the side wall of the first gear (5); the first crushing roller (51) rotates inside the crushing box (1); the first crushing roller (51) is located below the guide plate (41); a second gear (52) is meshed with the first gear (5); a second crushing roller (53) is fixedly connected to the middle of the side wall of the second gear (52); the second crushing roller (53) rotates inside the crushing box (1); the second crushing roller (53) is located below the guide plate (41).

6. The plastic granule crushing and feeding device for shoe sole injection molding according to claim 2, characterized in that: Multiple elastic fabrics (6) are fixed to the middle of the inner wall of the channel (2); the elastic fabrics (6) are made of elastic material.

7. The plastic granule crushing and feeding device for shoe sole injection molding according to claim 1, characterized in that: The bottom inner wall of the discharge box (16) is fixed with a discharge slope (7); the discharge slope (7) is an inclined structure.