Circulating crushing device for plastic production

Abstract

The utility model discloses a circulating crushing device for plastic production, and relates to the technical field of plastic production equipment. The crushing device comprises a crushing box and a moving plate slidably connected to the lower portion of the interior of the crushing box, a moving groove is formed in one side of the interior of the moving plate, a pushing assembly is arranged in the moving groove, and a distribution assembly is arranged above the moving plate. Raw materials which do not conform to specifications can be conveniently and rapidly pushed out through the material pushing assembly to be subjected to follow-up cyclic crushing, the working efficiency is high, follow-up screening and equipment use are prevented from being affected, the distribution assembly can drive the multiple sets of supporting plates on the movable plate to move, the multiple shifting rods on the supporting plates move, and the working efficiency is improved. And raw materials on the surface of the filter screen can be shifted to be flat, the screening efficiency and effect of the raw materials are improved, and the situation that the screening efficiency is affected due to the fact that the raw materials are accumulated at one position is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic production equipment, and in particular relates to a circulating crushing device for plastic production. Background Technology

[0002] Plastics are high molecular weight compounds polymerized from monomers through addition or condensation reactions. They are mainly composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. Their excellent properties have led to their widespread use in various industries. Plastics can be produced and processed through methods such as film pressing, lamination, injection molding, extrusion, and blow molding. Before plastic production and processing, a circulating crushing device is needed to pulverize the raw materials to improve subsequent production and processing efficiency and product quality.

[0003] A search revealed CN211616257U, filed on December 24, 2019, which discloses a waste plastic crushing device for producing automotive sun visors. This device belongs to the technical field of crushing devices and includes a crushing box with a feed hopper at the top and a discharge hopper at the bottom. A sliding groove is provided on the inner wall of the crushing box. By installing a screen within the crushing box, further screening after crushing is avoided, reducing processing steps and costs. The device uses a motor to drive a crank-rocker, which in turn drives a screening plate to vibrate back and forth via a connecting frame. The slider of the screening plate slides within the groove on the inner wall of the crushing box. This device features high vibration frequency, large vibration amplitude, fast screening speed, and good screening effect, leaving larger crushed particles on the screen while qualified crushed particles are discharged from the discharge hopper. The screen is secured with clips, making it simple, reliable, easy to install and disassemble, and convenient for cleaning.

[0004] However, it still has the following drawbacks in practical use:

[0005] 1. The waste plastic crushing device used for producing car sun visors described above filters crushed particles through a screen during use. However, in this way, crushed particles that do not meet the screening specifications will remain on the screen surface, which will affect subsequent screening and make it inconvenient to process crushed particles that do not meet the specifications.

[0006] 2. The aforementioned waste plastic crushing device for producing car sun visors uses a screening mechanism to drive screen vibration to improve screening efficiency. However, this method causes crushed particles to accumulate on one side of the screen, resulting in prolonged vibration screening time and reduced work efficiency. Therefore, we provide a circulating crushing device for plastic production to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this utility model is to provide a circulating crushing device for plastic production. By setting a pushing component, raw materials that do not meet the specifications on the surface of the filter screen can be pushed from the discharge rack into the conveying cylinder for subsequent circulating crushing operations. This facilitates the rapid discharge of raw materials that do not meet the specifications for subsequent circulating crushing, resulting in high working efficiency and avoiding impact on subsequent screening and equipment use. Furthermore, the distribution component can drive multiple sets of support plates on the moving plate to move, causing multiple levers on the support plates to move and move the raw materials on the surface of the filter screen, leveling the raw materials on the filter screen, accelerating the screening efficiency and effect, and preventing raw materials from accumulating in one place and affecting screening efficiency.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model is a circulating crushing device for plastic production, including a crushing box and a moving plate slidably connected to the lower part of the box. A moving groove is provided on one side of the moving plate, a pushing component is provided inside the moving groove, and a distributing component is provided above the moving plate.

[0010] The feeding assembly includes a fixed plate fixed to one side of the inner wall of the moving trough, and a second motor installed on one side of the fixed plate;

[0011] The sorting assembly includes a fixed frame fixed to the rear end face of the crushing chamber and a slider slidably connected to the inner wall of the fixed frame.

[0012] The present invention is further configured such that a crushing mechanism is provided at the top of the inside of the crushing box, a discharge pipe is provided at the center of the bottom of the crushing box, and a discharge rack is provided on one side of the outer wall of the crushing box.

[0013] The present invention is further configured such that a conveying cylinder is provided on one side of the crushing box, a guide plate is installed on the top of the outer wall of one side of the conveying cylinder, and a conveying mechanism is provided inside the conveying cylinder.

[0014] The present invention is further configured such that a filter screen is installed at the center of the upper surface of the moving plate, a first motor is installed on the outer wall of the other side of the crushing box, and a swing plate is installed on the output shaft of the first motor.

[0015] The present invention is further configured such that the other end of the swing plate is movably connected to the connecting plate via a hinge, and the other end of the connecting plate is movably connected to one side of the outer wall of the moving plate via a hinge.

[0016] The present invention is further configured such that the output shaft of the second motor passes through the bearing on the fixed plate and is connected to the threaded rod through the coupling, and the other end of the threaded rod passes through the threaded hole on the moving block and is connected to the bearing on the inner wall of the moving groove.

[0017] The present invention is further configured such that a first connecting rod is fixedly connected to the top center position of the movable block, and the other end of the first connecting rod passes through the limiting hole at the top of the movable groove and is connected to the push plate.

[0018] The present invention is further configured such that an iron block is embedded in the bottom of the fixed frame, an electromagnetic block is installed in the center of the slider, and a second connecting rod is fixedly connected to the center of the front end face of the electromagnetic block.

[0019] The present invention is further configured such that the other end of the second connecting rod passes through the limiting hole on the rear end face of the crushing box and is connected to the moving plate, and the other end face of the moving plate is evenly spaced with support plates in the horizontal direction, and the bottom of the support plates is arrayed with levers from front to back.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model, by setting up a pushing component, allows the second motor to drive the pusher plate to move horizontally, pushing the non-compliant raw materials from the filter screen surface from the discharge rack into the conveying cylinder for subsequent cyclic crushing operations. This facilitates the rapid discharge of non-compliant raw materials for subsequent cyclic crushing, resulting in high working efficiency and avoiding impact on subsequent screening and equipment use. It solves the problem of the aforementioned waste plastic crushing device used for producing car sun visors, where the screen filters the crushed particles, but non-compliant particles remain on the screen surface, affecting subsequent screening and making it inconvenient to process non-compliant particles.

[0022] 2. This utility model, by setting up a distributing component, can drive multiple sets of support plates on the moving plate to move under the combined action of the electromagnetic block and the iron block. This causes multiple levers on the support plates to move and can displace the raw material on the surface of the filter screen, leveling the raw material on the filter screen, thus accelerating the screening efficiency and effect of the raw material. It avoids the raw material accumulating in one place, which affects the screening efficiency. This solves the problem that the above-mentioned waste plastic crushing device used for producing car sun visors, which drives the screen to vibrate to improve screening efficiency through the screening mechanism, will cause the crushed particles to accumulate on the screen surface, resulting in a long vibration screening time and affecting work efficiency.

[0023] 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

[0024] 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.

[0025] Figure 1 This is a schematic diagram of a circulating crushing device for plastic production.

[0026] Figure 2 This is a cross-sectional view of a circulating crushing device for plastic production.

[0027] Figure 3 This is a structural diagram of the motion plate and the first motor.

[0028] Figure 4 This is a sectional view of the motion plate.

[0029] Figure 5 This is a structural diagram of the feeding assembly.

[0030] Figure 6 This is a disassembled diagram of the distribution component.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1-Grinding box, 101-Grinding mechanism, 102-Discharge pipe, 103-Discharge rack, 104-Conveying cylinder, 104a-Guiding plate, 105-Conveying mechanism, 106-Moving plate, 106a-Filter screen, 106b-Moving trough, 107-First motor, 107a-Swing plate, 107b-Connecting plate, 2-Pushing assembly, 201-Fixed plate, 202-Second motor, 202a-Threaded rod, 203-Moving block, 203a-First connecting rod, 204-Push plate, 3-Dividing assembly, 301-Fixed frame, 301a-Iron block, 302-Slider, 302a-Electromagnetic block, 303-Moving plate, 303a-Second connecting rod, 304-Support plate, 304a-Pulse lever. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1

[0035] Please see Figures 1 to 5This utility model is a circulating crushing device for plastic production, including a crushing box 1 and a moving plate 106 slidably connected to the lower part of the box. A moving groove 106b is provided on one side of the moving plate 106, and a pushing assembly 2 is provided inside the moving groove 106b. The pushing assembly 2 includes a fixing plate 201 fixed to one side of the inner wall of the moving groove 106b, and a second motor 202 installed on one side of the fixing plate 201.

[0036] Specifically, a crushing mechanism 101 is installed at the top of the inside of the crushing box 1; a discharge pipe 102 is installed at the center of the bottom of the crushing box 1; a discharge rack 103 is installed on one outer wall of the crushing box 1; a conveying cylinder 104 is installed on one side of the crushing box 1; a guide plate 104a is installed on the top of one outer wall of the conveying cylinder 104; a conveying mechanism 105 is installed inside the conveying cylinder 104; a filter screen 106a is installed at the center of the upper surface of the moving plate 106; a first motor 107 is installed on the other outer wall of the crushing box 1; a swing plate 107a is installed on the output shaft of the first motor 107; the swing plate 107a... The other end of a is movably connected to the connecting plate 107b via a hinge. The other end of the connecting plate 107b is movably connected to the outer wall of one side of the moving plate 106 via a hinge. The output shaft of the second motor 202 passes through the bearing on the fixed plate 201 and is connected to the threaded rod 202a via a coupling. The other end of the threaded rod 202a passes through the threaded hole on the moving block 203 and is connected to the bearing on the inner wall of the moving groove 106b. The first connecting rod 203a is fixedly connected to the top center position of the moving block 203. The other end of the first connecting rod 203a passes through the limiting hole at the top of the moving groove 106b and is connected to the push plate 204.

[0037] Furthermore, the moving plate 106 can slide and reciprocate inside the crushing box 1. The crushing mechanism 101, conveying mechanism 105, etc. are all existing technologies, so they will not be described in detail here. The filter screen 106a can screen the crushed raw materials. The first motor 107, swing plate 107a, connecting plate 107b, hinge, etc. are all existing technologies. They can drive the moving plate 106 to perform cyclic reciprocating motion. The external thread on the outer wall of the threaded rod 202a is helically engaged with the internal thread in the threaded hole wall of the moving block 203, which plays a role in transmission. The first connecting rod 203a drives the moving block 203 and the push plate 204 to connect, which plays a role in connection and transmission.

[0038] The operation process of this embodiment is as follows: After the raw material is screened on the surface of the filter screen 106a, the raw material that does not meet the screening requirements will accumulate on the surface of the filter screen 106a. Then, the second motor 202 is started. The output shaft of the second motor 202 rotates and drives the threaded rod 202a to rotate through the coupling. The external thread on the outer wall of the threaded rod 202a is screwed into the internal thread in the threaded hole wall of the moving block 203. Therefore, when the threaded rod 202a rotates, it can drive the moving block 203 to move in the horizontal direction. Under the action of the first connecting rod 203a, it drives the push plate 204 to move. The movement of the push plate 204 can push the raw material that does not meet the specifications on the surface of the filter screen 106a from the discharge rack 103 into the conveying cylinder 104 for subsequent cyclic crushing operations. This facilitates the rapid processing of raw materials that do not meet the specifications and subsequent cyclic crushing, resulting in high working efficiency and avoiding impact on subsequent screening and equipment use.

[0039] Example 2

[0040] Please see Figure 2 and Figure 6 Based on Embodiment 1, unlike the first embodiment, a sorting component 3 is provided. The sorting component 3 includes a fixed frame 301 fixed on the rear end face of the crushing box 1 and a slider 302 slidably connected to the inner wall of the fixed frame 301. This solves the problem that in the existing waste plastic crushing device used for producing car sun visors, the screen vibration is driven by the screening mechanism to improve the screening efficiency. However, in this way, the crushed particles will accumulate on the screen surface, resulting in a long vibration screening time and affecting the working efficiency.

[0041] Specifically, an iron block 301a is embedded in the bottom of the fixed frame 301, an electromagnetic block 302a is installed in the center of the slider 302, a second connecting rod 303a is fixedly connected to the center of the front end face of the electromagnetic block 302a, the other end of the second connecting rod 303a passes through the limiting hole on the rear end face of the crushing box 1 and is connected to the moving plate 303, and a support plate 304 is evenly spaced along the horizontal direction on the other end face of the moving plate 303, and a lever 304a is arranged in an array from front to back on the bottom of the support plate 304.

[0042] Furthermore, the slider 302 can slide and adjust its position on the inner wall of the fixed frame 301. By adjusting the current of the electromagnetic block 302a, the slider 302 can move in conjunction with the iron block 301a. The slider 302 and the moving plate 303 are connected by the second connecting rod 303a, which plays the role of connecting and transmitting. Multiple support plates 304 are provided, and a lever 304a is provided at the bottom. The levers 304a at the bottom of adjacent support plates 304 are alternately arranged.

[0043] The operation process of this embodiment is as follows: Raw materials for plastic production are fed into the crushing box 1 through the feed inlet, and the raw materials are crushed by the crushing mechanism 101. The crushed raw materials fall onto the surface of the filter screen 106a on the moving plate 106. Then, the first motor 107 is started. The rotation of the output shaft of the first motor 107 can drive the swing plate 107a to rotate. Then, under the action of the hinge and the connecting plate 107b, the moving plate 106 can be driven to move back and forth in a cycle, causing the moving plate 106 to vibrate, thereby accelerating the filtration efficiency of the raw materials on the surface of the filter screen 106a. During the movement of the moving plate 106, the electromagnetic block 302a is energized, and the electromagnetic... When block 302a is energized, it will generate a magnetic attraction to the iron block 301a below the fixed frame 301. By changing the current of the electromagnetic block 302a, the position of the slider 302 in the fixed frame 301 can be adjusted. The second connecting rod 303a drives the moving plate 303 to move, causing multiple support plates 304 on the moving plate 303 to move. At this time, multiple levers 304a at the bottom of the support plate 304 will move. During the reciprocating motion of the moving plate 106, the raw material on the surface of the filter screen 106a can be moved. The raw material on the filter screen 106a can be leveled, which can speed up the screening efficiency and effect of the raw material and prevent the raw material from accumulating in one place and affecting the screening efficiency.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] 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, 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. A circulating crushing device for plastic production, comprising a crushing box (1) and a moving plate (106) slidably connected to its interior below, wherein a moving groove (106b) is provided on one side of the interior of the moving plate (106), characterized in that: The moving trough (106b) is provided with a pushing component (2), and the moving plate (106) is provided with a distributing component (3) above it; The pushing assembly (2) includes a fixing plate (201) fixed to one side of the inner wall of the moving groove (106b), and a second motor (202) installed on one side of the fixing plate (201); The sorting component (3) includes a fixed frame (301) fixed on the rear end face of the crushing box (1) and a slider (302) slidably connected to the inner wall of the fixed frame (301).

2. The circulating crushing device for plastic production according to claim 1, characterized in that, The crushing box (1) is provided with a crushing mechanism (101) at the top inside, a discharge pipe (102) is provided at the bottom center of the crushing box (1), and a discharge rack (103) is provided on one side of the outer wall of the crushing box (1).

3. The circulating crushing device for plastic production according to claim 2, characterized in that, A conveying cylinder (104) is provided on one side of the crushing box (1), and a guide plate (104a) is installed on the top of the outer wall of one side of the conveying cylinder (104). A conveying mechanism (105) is provided inside the conveying cylinder (104).

4. The circulating crushing device for plastic production according to claim 3, characterized in that, A filter screen (106a) is installed at the center of the upper surface of the moving plate (106), and a first motor (107) is installed on the outer wall of the other side of the crushing box (1). A swing plate (107a) is installed on the output shaft of the first motor (107).

5. A circulating crushing device for plastic production according to claim 4, characterized in that, The other end of the swing plate (107a) is movably connected to the connecting plate (107b) via a hinge, and the other end of the connecting plate (107b) is movably connected to one side outer wall of the moving plate (106) via a hinge.

6. The circulating crushing device for plastic production according to claim 1, characterized in that, The output shaft of the second motor (202) passes through the bearing on the fixed plate (201) and is connected to the threaded rod (202a) through a coupling. The other end of the threaded rod (202a) passes through the threaded hole on the moving block (203) and is connected to the bearing on the inner wall of the moving groove (106b).

7. A circulating crushing device for plastic production according to claim 6, characterized in that, The top center of the movable block (203) is fixedly connected to a first connecting rod (203a), and the other end of the first connecting rod (203a) passes through the limiting hole at the top of the movable groove (106b) and is connected to the push plate (204).

8. A circulating crushing device for plastic production according to claim 1, characterized in that, An iron block (301a) is embedded in the bottom of the fixed frame (301), an electromagnetic block (302a) is installed in the center of the slider (302), and a second connecting rod (303a) is fixedly connected to the center of the front end face of the electromagnetic block (302a).

9. A circulating crushing device for plastic production according to claim 8, characterized in that, The other end of the second connecting rod (303a) passes through the limiting hole on the rear end face of the crushing box (1) and is connected to the moving plate (303). The other end face of the moving plate (303) is evenly spaced with support plates (304) in the horizontal direction. The bottom of the support plate (304) is arranged with levers (304a) from front to back.

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