Pretreatment equipment used before plastic raw material processing

Abstract

The utility model relates to the technical field of plastic raw material processing, in particular to pretreatment equipment before plastic raw material processing. The utility model aims to provide the pretreatment equipment for the plastic raw material before processing, which can prevent the filter screen from being blocked. Pretreatment equipment used before plastic raw material processing comprises a processing charging barrel, a discharging pipe, a first rotating frame, a cover plate, a drying assembly, a material screening net and the like, the discharging pipe is fixedly connected to the lower portion of the processing charging barrel, the first rotating frame is clamped to the upper portion of the processing charging barrel, the cover plate is rotatably connected to the top of the first rotating frame, and the drying assembly is fixedly connected to the front side of the processing charging barrel. Plastic raw materials are ground through the material screening net and the grinding block on the second rotating frame, plastic powder is prevented from caking to affect the machining quality, the plastic raw materials blocked in the material screening net are automatically removed through the movable disc and the material inserting plate, blocked material screening net holes are combed, and the machining quality is improved. And the practicability of the pretreatment equipment before plastic raw material processing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic raw material processing, in particular to a pre-treatment device for plastic raw materials before processing. Background Technique

[0002] Plastic powder, also known as plastic powder or granules, is a powdery polymer material and one of the raw materials for plastic products. Its main components include resin, stabilizer, filler, color powder, etc. Plastic powder can freely change its shape. After heating, it softens, cools, and forms, and can be made into various shaped plastic products. Plastic powder is widely used in the production of various plastic products, such as injection molded products, extruded plastic materials, films, sheets, pipes, etc. If the thickness of the plastic powder is inconsistent, it will affect the production quality of various plastic products.

[0003] For example, the patent with the authorized publication number CN117839791A and the publication date of April 9, 2024 discloses a plastic material pre-treatment device, including: a vertical platform, including four legs set on the ground, a first mounting plate fixedly connected to the tops of the four legs, and a second mounting plate fixedly connected to the middle parts of the four legs; a primary screening device fixedly connected to the first mounting plate; a conveying barrel, the outer wall of which is fixedly connected to the second mounting plate, arranged at the bottom of the primary screening device and communicated with the primary screening device; a secondary screening device fixedly connected to the bottom of the conveying barrel and communicated with the conveying barrel; in the above device, the brush only slightly stirs after passing through the sieve holes and cannot stir down the powder blocked on the filter screen, and it is necessary to manually comb down the blocked materials, with low versatility.

[0004] Based on the above situation, the utility model proposes a pre-treatment device for plastic raw materials before processing to prevent the filter screen from being blocked. Summary of the Invention

[0005] In order to overcome the disadvantage that the existing brush only slightly stirs after passing through the sieve holes and cannot stir down the powder blocked on the filter screen, and it is necessary to manually comb down the blocked materials, with low versatility, the purpose of the utility model is to provide a pre-treatment device for plastic raw materials before processing to prevent the filter screen from being blocked.

[0006] The technical solution is as follows: A pre-treatment device for plastic raw materials before processing, which includes a processing barrel, a feeding pipe, a first rotating frame, a cover plate, a drying component, a screening mesh, a second rotating frame, a fixed shell, a rotating rod, a double-headed motor, a moving plate, a feeding plate and a limiting frame. The lower part of the processing barrel is fixedly connected with the feeding pipe, the upper part of the processing barrel is clamped with the first rotating frame, the top of the first rotating frame is rotatably connected with the cover plate, the front side of the processing barrel is fixedly connected with the drying component, the middle and upper part of the processing barrel is fixedly connected with the screening mesh, the upper part of the processing barrel is fixedly connected with the fixed shell through a connecting rod, the bottom of the fixed shell is connected with the double-headed motor, the lower output shaft of the double-headed motor is connected with the rotating rod through a coupling, the lower part of the rotating rod is connected with the second rotating frame, the second rotating frame is rotatably connected with the screening mesh, the lower part of the rotating rod is threadedly connected with the moving plate, the moving plate is fixedly connected with a plurality of feeding plates circumferentially and evenly, the feeding plates correspond to the holes of the screening mesh, and the bottom of the screening mesh is fixedly connected with the limiting frame.

[0007] Further explanation: It also includes a connecting shell, a third rotating frame, a vibrating rod, an elastic member and a corrugated ring. The connecting shell is arranged inside the fixed shell. The upper output shaft of the double-headed motor is connected with the third rotating frame through a coupling. The lower part of the front side of the third rotating frame is slidably connected with the vibrating rod. The elastic member is wound around the vibrating rod, and the two ends of the elastic member are respectively connected to the vibrating rod and the third rotating frame. The middle of the connecting shell is fixedly connected with the corrugated ring.

[0008] Further explanation: It also includes a collecting frame, a guiding rod and a baffle. The upper left part of the processing barrel is fixedly connected with the collecting frame, the top of the collecting frame is fixedly connected with the guiding rod, and the top of the guiding rod is slidably connected with the baffle.

[0009] Further explanation: The bottom of the second rotating frame is circumferentially and evenly connected with grinding blocks.

[0010] Further explanation: The material of the screening mesh is stainless steel.

[0011] Further explanation: The overall shape of the fixed shell is conical, and the upper part is semi-circular.

[0012] Beneficial effects: 1. The utility model realizes the grinding of plastic raw materials through the screening mesh and the grinding blocks on the second rotating frame, preventing the plastic powder from agglomerating and affecting the processing quality. Through the moving plate and the feeding plates, the blocked plastic raw materials in the screening mesh are automatically removed, and the blocked screening mesh holes are dredged, improving the practicability of the pre-treatment device for plastic raw materials before processing.

[0013] 2. The utility model realizes the vibration of the materials on the screening mesh through components such as the vibrating rod and the corrugated ring, and is beneficial to screening the ground plastic raw materials, improving the user experience of the pre-treatment device for plastic raw materials before processing.

[0014] 3. Through components such as a collection box and a baffle, the utility model eliminates the need for manual collection of large plastic raw material particles, thus enhancing the practicality of the pre-treatment equipment for plastic raw materials before processing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is a cross-sectional three-dimensional structural schematic diagram of components such as the processing barrel, the first rotating frame, and the cover plate of the utility model.

[0017] Figure 3 is a cross-sectional three-dimensional structural schematic diagram of components such as the screening mesh, the second rotating frame, and the fixed shell of the utility model.

[0018] Figure 4 is a cross-sectional three-dimensional structural schematic diagram of components such as the fixed shell, the rotating rod, and the double-headed motor of the utility model.

[0019] Figure 5 is a cross-sectional three-dimensional structural schematic diagram of components such as the connecting shell, the third rotating frame, and the vibrating rod of the utility model.

[0020] Figure 6 is a three-dimensional structural schematic diagram of components such as the screening mesh, the collection box, and the guide rod of the utility model.

[0021] Figure 7 is a three-dimensional structural schematic diagram of components such as the screening mesh and the limiting frame of the utility model.

[0022] The meanings of the reference numerals in the drawings: 1: processing barrel, 2: blanking pipe, 3: first rotating frame, 4: cover plate, 5: drying component, 6: screening mesh, 7: second rotating frame, 8: fixed shell, 9: rotating rod, 10: double-headed motor, 11: moving disk, 12: inserting plate, 13: limiting frame, 14: connecting shell, 15: third rotating frame, 16: vibrating rod, 17: elastic member, 18: wave ring, 19: collection box, 20: guide rod, 21: baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0024] A pre-treatment device for plastic raw materials before processing, as Figures 1 - 5 and Figure 7As shown in the figure, it includes a processing barrel 1, a feeding pipe 2, a first rotating frame 3, a cover plate 4, a drying component 5, a screening mesh 6, a second rotating frame 7, a fixed shell 8, a rotating rod 9, a double-headed motor 10, a moving disk 11, a feeding plate 12 and a limiting frame 13. A feeding pipe 2 is fixedly connected to the lower part of the processing barrel 1. The feeding pipe 2 is used for discharging the plastic raw materials ground to the appropriate fineness. A first rotating frame 3 is clamped to the upper part of the processing barrel 1. The top of the first rotating frame 3 is rotatably connected with a cover plate 4. The cover plate 4 is used to enclose the plastic raw materials during grinding in the processing barrel 1 to prevent sundries from falling into the processing barrel 1. A drying component 5 is fixedly connected to the front side of the processing barrel 1. The drying component 5 is used for drying the plastic raw materials. A screening mesh 6 is fixedly connected to the middle and upper part of the processing barrel 1. A fixed shell 8 is fixedly connected to the upper part of the processing barrel 1 through a connecting rod. A double-headed motor 10 is connected to the bottom of the fixed shell 8. The lower output shaft of the double-headed motor 10 is connected with a rotating rod 9 through a coupling. The lower part of the rotating rod 9 is connected with a second rotating frame 7. The second rotating frame 7 is rotatably connected with the screening mesh 6. The lower part of the rotating rod 9 is threadedly connected with a moving disk 11. A plurality of feeding plates 12 are fixedly connected to the moving disk 11 in a circumferentially uniform manner. The feeding plates 12 correspond to the holes of the screening mesh 6. The feeding plates 12 are used for removing the blocked plastic raw materials in the screening mesh 6. A limiting frame 13 is fixedly connected to the bottom of the screening mesh 6.

[0025] As Figure 2 and Figure 3 shown in the figure, a plurality of grinding blocks are circumferentially and uniformly connected to the bottom of the second rotating frame 7 for grinding the agglomerated plastic raw materials into powder.

[0026] As Figure 2 and Figure 3 shown in the figure, the screening mesh 6 is made of stainless steel and is used for screening and grinding plastic raw materials.

[0027] As Figure 3 and Figure 4 shown in the figure, the fixed shell 8 is in a conical shape as a whole, and the upper part is semi-circular, which is convenient for the plastic raw materials to be fed to the periphery of the screening mesh 6 and convenient for the second rotating frame 7 to grind the plastic raw materials.

[0028] Before processing the plastic raw materials, pretreatment is required to prevent the plastic powder from agglomerating and affecting the processing quality, resulting in substandard quality of the products produced from the plastic raw materials. First, manually rotate to open the cover plate 4, and then pour the plastic raw materials that need to be pretreated in advance into the processing barrel 1. The plastic raw materials are concentrated around the screening mesh 6 due to the blockage of the fixed shell 8. Manually control the double-headed motor 10 to drive, drive the rotating rod 9 to rotate, and the rotating rod 9 drives the second rotating frame 7 to rotate. The plastic raw materials are ground through the grinding blocks on the screening mesh 6 and the second rotating frame 7. When the grinding reaches a certain fineness, the plastic raw materials fall into the feeding pipe 2 through the holes of the screening mesh 6. Manually control the drying component 5 to start, and the ground plastic raw materials can be dried. During the rotation of the rotating rod 9, the moving disk 11 will move upward under the limiting action of the limiting frame 13. The upward movement of the moving disk 11 drives the inserting plate 12 to move upward. The inserting plate 12 is inserted into the screening mesh 6 to remove the plastic raw materials blocked in the holes of the screening mesh 6, avoiding affecting the feeding of the ground plastic raw materials. Then, reverse the double-headed motor 10, the rotating rod 9 drives the second rotating frame 7 to rotate in the reverse direction, and at the same time, the moving disk 11 and the inserting plate 12 are reset under the action of the rotating rod 9, thereby preventing the filter screen from being blocked while grinding the materials. Embodiment

[0029] On the basis of Embodiment 1, as Figures 3 - 5 shown, it further includes a connecting shell 14, a third rotating frame 15, a vibrating rod 16, an elastic member 17, and a corrugated ring 18. The connecting shell 14 is fixedly connected inside the fixed shell 8 through a connecting rod. The upper output shaft of the double-headed motor 10 is connected to the third rotating frame 15 through a coupling. The lower part of the front side of the third rotating frame 15 is slidably connected with the vibrating rod 16. The elastic member 17 is wound around the vibrating rod 16, and both ends of the elastic member 17 are respectively connected to the vibrating rod 16 and the third rotating frame 15. The middle part of the connecting shell 14 is fixedly connected with the corrugated ring 18.

[0030] When pouring the plastic raw materials that need to be pretreated in advance into the processing barrel 1, some plastic raw materials will remain on the fixed shell 8. In order to shake these plastic raw materials onto the screening mesh 6, manually control the double-headed motor 10 to start. The double-headed motor 10 drives the third rotating frame 15 to rotate. Immediately, the inclined surface of the vibrating rod 16 contacts the inclined surface of the corrugated ring 18, and the elastic member 17 is compressed. The third rotating frame 15 continues to rotate. Immediately, the inclined surface of the vibrating rod 16 will separate from the inclined surface of the corrugated ring 18. At this time, the elastic member 17 resets to make the vibrating rod 16 hit the corrugated ring 18 to generate vibration. The vibration is transmitted to the connecting shell 14 and then to the fixed shell 8, causing the plastic raw materials on the fixed shell 8 to fall onto the screening mesh 6, thereby realizing shaking the materials on the screening mesh 6.

[0031] It also includes a collection box 19, a guide rod 20 and a baffle 21. A collection box 19 is fixedly connected to the upper left side of the processing barrel 1. The collection box 19 is used to collect large particle plastic raw materials that cannot be ground. A guide rod 20 is fixedly connected to the top of the collection box 19. The top of the guide rod 20 is slidably connected with a baffle 21. Under the action of the guide rod 20, the baffle 21 will not shift.

[0032] Some large particles that cannot be ground in the plastic raw materials will remain on the screening mesh 6. After the small particle plastic raw materials on the screening mesh 6 are filtered out, manually pull the baffle 21 to the left under the guiding action of the guide rod 20. Then, manually control the double-headed motor 10 to drive the second rotating frame 7 to rotate, and push the large particles remaining on the screening mesh 6 into the collection box 19, thereby facilitating the collection of larger particles of plastic raw materials.

[0033] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A pre-treatment device for plastic raw materials before processing, characterized in that: It includes a processing barrel (1), a feeding pipe (2), a first rotating frame (3), a cover plate (4), a drying assembly (5), a screening mesh (6), a second rotating frame (7), a fixed shell (8), a rotating rod (9), a double-headed motor (10), a moving disk (11), a material inserting plate (12) and a limiting frame (13). The lower part of the processing barrel (1) is fixedly connected with the feeding pipe (2), the upper part of the processing barrel (1) is clamped with the first rotating frame (3), the top of the first rotating frame (3) is rotatably connected with the cover plate (4), the front side of the processing barrel (1) is fixedly connected with the drying assembly (5), the middle upper part of the processing barrel (1) is fixedly connected with the screening mesh (6), the upper part of the processing barrel (1) is fixedly connected with the fixed shell (8) through a connecting rod, the bottom of the fixed shell (8) is connected with the double-headed motor (10), the lower output shaft of the double-headed motor (10) is connected with the rotating rod (9) through a coupling, the lower part of the rotating rod (9) is connected with the second rotating frame (7), the second rotating frame (7) is rotatably connected with the screening mesh (6), the lower part of the rotating rod (9) is threadedly connected with the moving disk (11), the moving disk (11) is circumferentially and evenly fixedly connected with a plurality of material inserting plates (12), the material inserting plates (12) correspond to the holes of the screening mesh (6), and the bottom of the screening mesh (6) is fixedly connected with the limiting frame (13).

2. The pre-treatment equipment for plastic raw materials before processing according to claim 1, wherein: It further includes a connecting shell (14), a third rotating frame (15), a vibrating rod (16), an elastic member (17) and a corrugated ring (18). The connecting shell (14) is arranged inside the fixed shell (8), the upper output shaft of the double-headed motor (10) is connected with the third rotating frame (15) through a coupling, the lower part of the front side of the third rotating frame (15) is slidably connected with the vibrating rod (16), the elastic member (17) is wound around the vibrating rod (16), and the two ends of the elastic member (17) are respectively connected to the vibrating rod (16) and the third rotating frame (15), and the middle part of the connecting shell (14) is fixedly connected with the corrugated ring (18).

3. A pre-treatment device for plastic raw materials before processing according to claim 2, characterized in that: It further includes a collection box (19), a guide rod (20) and a baffle (21). The upper left part of the processing barrel (1) is fixedly connected with the collection box (19), the top of the collection box (19) is fixedly connected with the guide rod (20), and the top of the guide rod (20) is slidably connected with the baffle (21).

4. The pre-treatment equipment for plastic raw materials before processing according to claim 3, characterized in that: The bottom of the second rotating frame (7) is circumferentially and evenly connected with grinding blocks.

5. The pre-treatment equipment for plastic raw materials before processing according to claim 4, characterized in that: The screening mesh (6) is made of stainless steel.

6. The pretreatment equipment for plastic raw materials before processing according to claim 5, characterized in that: The fixed shell (8) is integrally conical, and the upper part is semi-circular.

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