Plastic crushing device

Abstract

The utility model discloses a plastic crushing device and relates to the technical field of plastic crushing. The top of the treatment bin is fixedly provided with a crushing bin; the top of the crushing bin is fixedly provided with a feeding hopper; a primary crushing mechanism is arranged in the crushing bin; a screening mechanism is arranged below the primary crushing mechanism in the treatment bin; and a second crushing roller group is rotationally mounted on the inner walls of the front and rear sides of the treatment bin and below the discharging plate. The screening mechanism and the second smashing roller set are used in cooperation, so that the device can conduct secondary smashing operation on plastic which cannot be used while conducting screening, and therefore it is effectively guaranteed that the plastic can reach the needed use standard after being smashed, the situation of secondary machining is avoided, and the use efficiency is improved. And normal proceeding of the next injection molding machining operation is guaranteed, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic crushing, in particular to a plastic crushing device. Background Art

[0002] A Chinese patent with the announcement number CN213321147U discloses a plastic waste crushing device. The utility model discloses a plastic waste crushing device, including an extrusion box, the interior of the extrusion box is a hollow structure, the upper surface of the extrusion box is connected to a feed hopper connected to the interior, the upper surface of the extrusion box is fixedly connected to a crushing box connected to the interior, the interior of the crushing box is a hollow structure, two crushing barrels are arranged inside the crushing box, the front and rear ends of the two crushing barrels rotate and penetrate the front and back inner walls of the crushing box respectively, and the front of the crushing box is fixedly connected to a power box. The plastic waste crushing device, by providing a connecting rod, a moving block and an extrusion block, achieves the effect that the extrusion block squeezes the plastic when moving to the right so that the plastic is easy to enter between the two crushing barrels, and solves the problem that the waste plastic products are of various shapes and sizes, and the plastic is not easy to enter between the two crushing barrels for crushing, resulting in low work efficiency.

[0003] However, the above device, by setting the connecting rod, the moving block and the extrusion block, achieves the effect that the extrusion block squeezes the plastic when moving to the right to make the plastic easier to enter between the two crushing barrels, thereby facilitating feeding and crushing. However, after crushing, the plastic needs to be crushed into particles of a certain size for use in injection molding processing. The above device only performs simple crushing and cannot guarantee that the crushed particles meet the use requirements.

[0004] For this reason, a plastic pulverizing device is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing plastic crushing device cannot ensure that the size of the crushed plastic particles meets the use requirements of the injection molding machine. The utility model provides a plastic crushing device.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A plastic crushing device comprises a processing bin, a crushing bin is fixedly installed on the top of the processing bin, a feed hopper is fixedly installed on the top of the crushing bin, a primary crushing mechanism is built in the crushing bin, a screening mechanism is arranged below the primary crushing mechanism in the processing bin, a feeding plate is fixedly installed on the inner side wall of the processing bin at the discharge end of the screening mechanism, a second crushing roller group is rotatably installed on the front and rear inner walls of the processing bin below the feeding plate, a first motor is fixedly installed on the front side wall of the processing bin, an output end of the first motor laterally penetrates the processing bin and is fixedly connected to the rotating shaft of the second crushing roller group; specifically, in some embodiments, when plastic crushing operation is required, the plastic raw material is preferentially placed in the feed hopper, at which time the user drives the primary crushing mechanism to crush the plastic, at which time the crushed plastic enters the screening mechanism for screening, and the unqualified plastic is pushed by the screening mechanism into the second crushing roller group for secondary processing and crushing operation.

[0008] Furthermore, the primary crushing mechanism includes a second motor, a guide plate and a first crushing roller group. The first crushing roller group is rotatably installed on the front and rear inner walls of the crushing bin, and the second motor is fixedly installed on the front side wall of the crushing bin. The output end of the second motor transversely penetrates the crushing bin and is fixedly connected to the rotating shaft of one of the first crushing roller groups. Specifically, when the second motor is driven, the first crushing roller group rotates, and the first crushing roller group can crush the raw materials.

[0009] Furthermore, guide plates are fixedly installed on the inner walls of both sides of the crushing bin located on the top of the first crushing roller group, and the number of the guide plates is two groups and they are arranged in parallel and correspondingly.

[0010] The gear train is a gear train that is mounted on a first slide block, a second ... A double-axis motor is fixedly installed on one side wall of the sieve plate, a connecting rod is fixedly installed on the output end of the double-axis motor, a first gear is fixedly installed on the free end of the connecting rod, and the first gear is meshed with the second gear. A bracket is fixedly installed on the front and rear inner walls of the processing bin, a third motor is fixedly installed on the top of the bracket, a cam is fixedly installed on the output end of the third motor, a protrusion is fixedly installed on the bottom of the sieve plate, and the outer wall of the protrusion is fitted with the cam, a mounting block is fixedly installed on the top of the bracket, a guide rod is fixedly installed on one side wall of the mounting block, a positioning block is fixedly installed on the bottom of the sieve plate, the positioning block is sleeved on the guide rod and slidably connected with the guide rod, and a return spring is fixedly installed on the corresponding side walls of the positioning block and the mounting block; specifically, when the crushed plastic enters the sieve plate, the third motor is driven to rotate, causing the sieve plate to reciprocate laterally to perform a screening operation. After the screening operation is completed, the user drives the double-axis motor to cause the push plate to push the plastic into the second crushing roller group for secondary crushing.

[0011] Furthermore, a fixing block is fixedly mounted on one side wall of the screen plate, and the fixing block is sleeved on the connecting rod and is slidably connected to the connecting rod.

[0012] Furthermore, the first gear and the second gear have the same size and structure and are both bevel gears.

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

[0014] 1. The utility model sets a screening mechanism and a second crushing roller group for use, so that the device can perform a secondary crushing operation on unusable plastics while screening, thereby effectively ensuring that the plastics can meet the required use standards after crushing, avoiding the situation of secondary processing, ensuring the normal progress of the next injection molding process, and greatly improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the position structure of the screen plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the position of the guide plate of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the screening mechanism of the utility model;

[0019] Figure numerals: 1, feed hopper; 2, crushing bin; 3, processing bin; 4, first motor; 5, second motor; 6, sieve plate; 7, first crushing roller group; 8, guide plate; 9, threaded rod; 10, unloading plate; 11, second crushing roller group; 12, first slide; 13, second slide; 14, push plate; 15, connecting rod; 17, bracket; 18, cam; 19, bump; 20, third motor; 21, mounting block; 22, reset spring; 23, guide rod; 24, fixing block; 25, positioning block; 26, first gear; 27, second gear; 28, first slider; 29, second slider; 30, slide rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4 As shown, a plastic crushing device comprises a processing bin 3, a crushing bin 2 is fixedly installed on the top of the processing bin 3, a feed hopper 1 is fixedly installed on the top of the crushing bin 2, a primary crushing mechanism is built in the crushing bin 2, a screening mechanism is arranged below the primary crushing mechanism in the processing bin 3, a blanking plate 10 is fixedly installed on the inner side wall of the processing bin 3 at the discharge end of the screening mechanism, a second crushing roller group 11 is rotatably installed on the front and rear inner walls of the processing bin 3 below the blanking plate 10, a first motor 4 is fixedly installed on the front side wall of the processing bin 3, an output end of the first motor 4 transversely penetrates the processing bin 3 and is fixedly connected to the rotating shaft of the second crushing roller group 11; specifically, in some embodiments, when plastic crushing operation is required, the plastic raw material is preferentially placed in the feed hopper 1, at this time, the user drives the primary crushing mechanism to crush the plastic, at this time, the crushed plastic enters the screening mechanism for screening, and the unqualified plastic is pushed by the screening mechanism into the second crushing roller group 11 for secondary processing and crushing operation.

[0025] like Figures 1 to 4 As shown, the primary crushing mechanism includes a second motor 5, a guide plate 8 and a first crushing roller group 7. The first crushing roller group 7 is rotatably installed on the front and rear inner walls of the crushing bin 2, and the second motor 5 is fixedly installed on the front side wall of the crushing bin 2. The output end of the second motor 5 transversely penetrates the crushing bin 2 and is fixedly connected to the rotating shaft of one group of the first crushing roller groups 7; specifically, when the second motor 5 is driven, the first crushing roller group 7 rotates, and the first crushing roller group 7 can crush the raw material.

[0026] like Figures 1 to 4 As shown, guide plates 8 are fixedly installed on the inner walls of both sides of the crushing bin 2 at the top of the first crushing roller group 7, and the number of the guide plates 8 is two groups and they are arranged in parallel and correspondingly.

[0027] like Figures 1 to 4As shown, the screening mechanism includes a sieve plate 6, a first slide groove 12, a second slide groove 13, a push plate 14, a connecting rod 15, a dual-axis motor 16, a fixed block 24, a bracket 17, a cam 18, a third motor 20, a protrusion 19, a mounting block 21, a return spring 22, a guide rod 23, a positioning block 25, a first gear 26, a second gear 27, a first slider 28, a second slider 29, a threaded rod 9, and a slide rod 30. The front and rear inner walls of the processing bin 3 are provided with a second slide groove 13, and the inner walls on both sides of the second slide groove 13 are fixedly installed with slide rods 30. The second slide groove 13 has a built-in second slider 29, and the second slider 29 is sleeved on The slide bar 30 is slidably connected with the slide bar 30, the corresponding side wall of the second slide block 29 is fixedly installed with the screen plate 6, the second slide block 29 is located in the middle of the second slide groove 13, the front and rear inner walls of the screen plate 6 are provided with a first slide groove 12, the inner walls on both sides of the first slide groove 12 are rotatably installed with a threaded rod 9, the first slide groove 12 has a first slide block 28 built in, the first slide block 28 is sleeved on the threaded rod 9 and is threadedly connected with the threaded rod 9, the corresponding side wall of the first slide block 28 is fixedly installed with a push plate 14, the threaded rod 9 horizontally penetrates the first slide groove 12 and extends to the outside of one side of the screen plate 6, and the threaded rod 9 is fixed at one end outside the screen plate 6 A second gear 27 is installed, a double-axis motor 16 is fixedly installed on one side wall of the sieve plate 6, a connecting rod 15 is fixedly installed on the output end of the double-axis motor 16, a first gear 26 is fixedly installed on the free end of the connecting rod 15, the first gear 26 is meshed with the second gear 27, a bracket 17 is fixedly installed on the front and rear inner walls of the processing bin 3, a third motor 20 is fixedly installed on the top of the bracket 17, a cam 18 is fixedly installed on the output end of the third motor 20, a protrusion 19 is fixedly installed on the bottom of the sieve plate 6, the outer side wall of the protrusion 19 is fitted with the cam 18, a mounting block 21 is fixedly installed on the top of the bracket 17, and the mounting block A guide rod 23 is fixedly installed on one side wall of 21, and a positioning block 25 is fixedly installed on the bottom of the sieve plate 6. The positioning block 25 is sleeved on the guide rod 23 and is slidably connected to the guide rod 23. A return spring 22 is fixedly installed on the corresponding side wall of the positioning block 25 and the mounting block 21; specifically, when the crushed plastic enters the sieve plate 6, the third motor 20 is driven to cause the cam 19 to rotate, causing the sieve plate 6 to reciprocate laterally to perform a screening operation. After the screening operation is completed, the user drives the dual-axis motor 16 to cause the push plate 14 to push the plastic into the second crushing roller group 11 for secondary crushing.

[0028] like Figures 1 to 4 As shown, a fixing block 24 is fixedly mounted on one side wall of the screen plate 6 , and the fixing block 24 is sleeved on the connecting rod 15 and is slidably connected to the connecting rod 15 .

[0029] like Figures 1 to 4 As shown, the first gear 26 and the second gear 27 have the same size and structure and are both bevel gears.

[0030] In summary: In some embodiments, when plastic crushing operations are required, the plastic raw materials are preferentially placed in the feed hopper 1. At this time, the user drives the crushing mechanism once to crush the plastic. At this time, the crushed plastic enters the screening mechanism for screening, and the unqualified plastic is pushed by the screening mechanism into the second crushing roller group 11 for secondary processing and crushing operations. When the crushed plastic enters the screen plate 6, the third motor 20 is driven to cause the cam 19 to rotate, causing the screen plate 6 to reciprocate laterally for screening operations. After the screening operation is completed, the user drives the dual-axis motor 16 to cause the push plate 14 to push the plastic to the second crushing roller group 11 for secondary crushing operations.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic crushing device, characterized in that: The invention comprises a processing bin (3), a crushing bin (2) is fixedly mounted on the top of the processing bin (3), a feeding hopper (1) is fixedly mounted on the top of the crushing bin (2), a primary crushing mechanism is built in the crushing bin (2), a screening mechanism is arranged below the primary crushing mechanism in the processing bin (3), a discharge plate (10) is fixedly mounted on the inner side wall of the processing bin (3) at the discharge end of the screening mechanism, a second crushing roller group (11) is rotatably mounted on the front and rear inner walls of the processing bin (3) below the discharge plate (10), a first motor (4) is fixedly mounted on the front side wall of the processing bin (3), and the output end of the first motor (4) transversely penetrates the processing bin (3) and is fixedly connected to the rotating shaft of the second crushing roller group (11).

2. A plastic crushing device according to claim 1, characterized in that: The primary pulverizing mechanism comprises a second motor (5), a guide plate (8) and a first pulverizing roller group (7); the first pulverizing roller group (7) is rotatably mounted on the front and rear inner walls of the pulverizing bin (2); the second motor (5) is fixedly mounted on the front wall of the pulverizing bin (2); the output end of the second motor (5) transversely penetrates the pulverizing bin (2) and is fixedly connected to a rotating shaft of one of the first pulverizing roller groups (7).

3. A plastic crushing device according to claim 2, characterized in that: Guide plates (8) are fixedly mounted on the inner walls of both sides of the crushing bin (2) at the top of the first crushing roller group (7), and the guide plates (8) are provided in two groups and are arranged in parallel and corresponding manner.

4. A plastic crushing device according to claim 1, characterized in that: The screening mechanism comprises a screen plate (6), a first slide groove (12), a second slide groove (13), a push plate (14), a connecting rod (15), a dual-axis motor (16), a fixing block (24), a bracket (17), a cam (18), a third motor (20), a protrusion (19), a mounting block (21), a return spring (22), a guide rod (23), a positioning block (25), a first gear (26), a second gear (27), a first slider (28), a second slider (29), a threaded rod (9), and a slide rod (30). The front and rear inner walls of the processing chamber (3) are provided with a second slide groove (13), and the inner walls on both sides of the second slide groove (13) are provided with a second slide groove (13). A slide bar (30) is fixedly installed, a second slide groove (13) has a second slider (29) built in, the second slider (29) is sleeved on the slide bar (30) and is slidably connected to the slide bar (30), a sieve plate (6) is fixedly installed on the corresponding side wall of the second slider (29), the second slider (29) is located in the middle of the second slide groove (13), the front and rear inner walls of the sieve plate (6) are provided with a first slide groove (12), the inner walls on both sides of the first slide groove (12) are rotatably installed with a threaded rod (9), the first slide groove (12) has a first slider (28) built in, the first slider (28) is sleeved on the threaded rod (9) and is threadedly connected to the threaded rod (9), the first A push plate (14) is fixedly installed on the corresponding side wall of the slider (28), a threaded rod (9) transversely penetrates the first slide groove (12) and extends to the outside of one side of the sieve plate (6), a second gear (27) is fixedly installed on one end of the threaded rod (9) located outside the sieve plate (6), a double-axis motor (16) is fixedly installed on one side wall of the sieve plate (6), a connecting rod (15) is fixedly installed on the output end of the double-axis motor (16), a first gear (26) is fixedly installed on the free end of the connecting rod (15), and the first gear (26) is meshed with the second gear (27), a bracket (17) is fixedly installed on the front and rear inner walls of the processing chamber (3), and the top of the bracket (17) is fixedly installed A third motor (20) is fixedly installed, a cam (18) is fixedly installed at the output end of the third motor (20), a convex block (19) is fixedly installed at the bottom of the sieve plate (6), the outer side wall of the convex block (19) is arranged in abutment with the cam (18), a mounting block (21) is fixedly installed at the top of the bracket (17), a guide rod (23) is fixedly installed on one side wall of the mounting block (21), a positioning block (25) is fixedly installed at the bottom of the sieve plate (6), the positioning block (25) is sleeved on the guide rod (23) and is slidably connected to the guide rod (23), and a return spring (22) is fixedly installed on the corresponding side walls of the positioning block (25) and the mounting block (21).

5. A plastic crushing device according to claim 4, characterized in that: A fixing block (24) is fixedly mounted on one side wall of the screen plate (6), and the fixing block (24) is sleeved on the connecting rod (15) and is slidably connected to the connecting rod (15).

6. A plastic crushing device according to claim 4, characterized in that: The first gear (26) and the second gear (27) are of the same size and structure and are both bevel gears.

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