Raw material pretreatment device with anti-blocking mechanism for plastic product processing

By designing an anti-blocking mechanism, the blockage problem caused by obstruction in existing devices is solved, enabling more efficient feeding and discharging, and improving the practicality and convenience of the raw material pretreatment device for plastic product processing.

CN223989651UActive Publication Date: 2026-03-13NINGBO YISHIDA MOLD MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In existing raw material pretreatment devices for plastic product processing, the screw and protective shell can obstruct the feed funnel, affecting feeding efficiency and potentially causing blockages, thus reducing raw material pretreatment efficiency.

Method used

An anti-clogging mechanism was designed. By rotating the rotating rod, the clamp rod is disengaged from the clamp seat, and the baffle plate is pulled to slide, increasing the opening area at the top of the processing tank to avoid blockage. The discharge pipe is also unblocked by the unblocking mechanism, thereby improving the feeding and discharging efficiency.

Benefits of technology

It improves the efficiency of feeding plastic raw materials into the processing tank, avoids blockages, enhances the practicality and convenience of the device, and simplifies the unblocking operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic product processing raw material pretreatment device with an anti-blocking mechanism, which comprises a treatment tank, and the top of the treatment tank is fixedly connected with a fixed plate. According to the raw material pretreatment device with the anti-blocking mechanism for plastic product processing, the clamping rod can be separated from the right-angle clamping seat by rotating the rotating rod, and then the rotating rod can be pulled to enable the moving block and the T-shaped rail to slide in the supporting frame, so that a top opening of the treatment tank is exposed in a relatively large area; after the moving block is pulled to a certain position in the supporting frame, the shielding plate can rotate relative to the moving block to be in a vertical state, then the rotating rod is loosened, the clamping rod can be clamped into the clamping groove under the action of the elastic force of the torsional spring, the position of the shielding plate is limited to a certain degree, and the position of the shielding plate can be adjusted by increasing the exposed area of the top opening of the treatment tank. The efficiency of feeding plastic raw material particles into the treatment tank is improved, and meanwhile the situation that the plastic particles block the feeding port is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of plastic product processing technology, and in particular to a raw material pretreatment device for plastic product processing with an anti-clogging mechanism. Background Technology

[0002] The processing of plastic products requires many related production equipment, such as cutting devices, labeling devices, crushing devices, softening devices, mixing devices, raw material pretreatment equipment, etc. Among them, the raw material pretreatment equipment is mainly to ensure the quality and uniformity of plastic products. During the addition of ingredients, the materials are stirred and mixed to meet the requirements of the product molding process.

[0003] For example, Chinese utility model patent (CN215790950U) discloses a raw material pretreatment device for plastic product processing with an anti-clogging mechanism. It describes: "In use, the motor drives a rotating rod to rotate, which in turn drives a stirring rod to rotate. The stirring rod stirs the material. The rotating rod also drives a second grooved wheel fixedly connected to it to rotate. The second grooved wheel drives a first grooved wheel to rotate via a belt. The first grooved wheel drives a screw to rotate. When the screw rotates, it accelerates the material flow in the inner cavity of the feeding funnel, preventing blockage. Compared with existing technologies, this device eliminates the need for operators to clear blockages, significantly reducing labor and facilitating processing." It also addresses the technical problem that "existing raw material pretreatment devices for plastic product processing often experience blockages at the feed inlet during material mixing, affecting processing and requiring labor to clear blockages, which is time-consuming and labor-intensive."

[0004] In summary, existing technologies utilize rotating screws to accelerate material flow within the feed hopper cavity and prevent blockage. However, this approach presents the following technical problems: the screw and protective shell in the aforementioned devices can obstruct the feed hopper, potentially affecting the efficiency of material feeding into the cylinder and consequently reducing the efficiency of raw material pretreatment. Therefore, this application proposes a raw material pretreatment device for plastic product processing with an anti-blocking mechanism, providing a new technical solution to address the technical problems mentioned in the aforementioned patents. Utility Model Content

[0005] Based on this, it is necessary to address the aforementioned technical problems by providing a raw material pretreatment device for plastic product processing with an anti-clogging mechanism. By rotating the rotating rod, the clamping rod can be disengaged from the right-angle clamping seat, which in turn pulls the rotating rod to slide the baffle plate within the support frame. This allows both the moving block and the T-shaped rail to slide within the support frame, thereby exposing a relatively large area of ​​the top opening of the processing tank. After the moving block is pulled to a certain position within the support frame, the baffle plate can be rotated to a vertical position relative to the moving block. Then, releasing the rotating rod allows the clamping rod to engage with the clamping slot under the action of the torsion spring, thus restricting the position of the baffle plate. By increasing the exposed area of ​​the top opening of the processing tank, the efficiency of feeding plastic raw material granules into the processing tank is improved, while avoiding the clogging of the feed inlet by plastic granules, thus improving the practicality of the device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A raw material pretreatment device with an anti-clogging mechanism for processing plastic products is used in the processing of plastic products.

[0008] The raw material pretreatment device for plastic product processing with an anti-clogging mechanism specifically includes:

[0009] The processing tank has a fixed plate fixedly connected to its top, a drive motor fixedly installed on the top of the fixed plate, a stirring rod fixedly connected to the output end of the drive motor, the stirring rod being rotatably connected to the inner wall of the fixed plate, a discharge pipe fixedly connected to the bottom of the processing tank, a shielding mechanism on the processing tank, and a clearing mechanism on the discharge pipe.

[0010] The shielding mechanism includes a support frame, a movable block, a shielding component, a rotating component, and a snap-fit ​​component. The support frame is fixedly connected to the outer wall of the treatment tank near the top edge, and two movable blocks are slidably connected to the outer wall of the support frame.

[0011] As a preferred embodiment of the raw material pretreatment device for plastic product processing with anti-blocking mechanism provided by this utility model, the shielding component includes a shielding plate, two movable blocks are rotatably connected to the outer wall of the shielding plate, and T-shaped rails are fixedly connected to the sides of the two movable blocks that are far apart from each other, and the two T-shaped rails are slidably connected to the inner wall of the support frame.

[0012] In a preferred embodiment of the raw material pretreatment device for plastic product processing with anti-clogging mechanism provided by this utility model, the rotating assembly includes a housing, the outer wall of the baffle plate is fixedly connected to the housing, the inner wall of the housing is rotatably connected to a rotating rod, the rotating rod is rotatably connected to the inner wall of the baffle plate, the outer wall of the rotating rod is fixedly connected to a fixing ring, the outer wall of the fixing ring is fixedly connected to a locking rod, and a torsion spring is sleeved on the outside of the rotating rod, with both ends of the torsion spring fixedly connected to the outer wall of the fixing ring and the inner wall of the housing, respectively.

[0013] As a preferred embodiment of the raw material pretreatment device for plastic product processing with anti-clogging mechanism provided by this utility model, the snap-fit ​​assembly includes a right-angle snap-fit ​​seat, the outer wall of the support frame is fixedly connected to the right-angle snap-fit ​​seat, the snap-fit ​​rod is movably snapped into the right-angle snap-fit ​​seat, and the processing tank is provided with a snap-fit ​​groove, the snap-fit ​​rod is movably snapped into the snap-fit ​​groove.

[0014] As a preferred embodiment of the raw material pretreatment device for plastic product processing with anti-clogging mechanism provided by this utility model, the unblocking mechanism includes a limiting ring. The limiting ring is fixedly connected to the outer wall of the discharge pipe. A plurality of U-shaped rods are slidably connected to the inner wall of the limiting ring. A sliding ring is slidably connected to the outer wall of the discharge pipe. One end of each of the plurality of U-shaped rods located outside the discharge pipe is fixedly connected to the outer wall of the sliding ring. A spring is sleeved on the outside of each of the plurality of U-shaped rods. The two ends of the springs are respectively fixedly connected to the outer walls of the sliding ring and the limiting ring. A top ball is fixedly connected to one end of each of the plurality of U-shaped rods located inside the discharge pipe.

[0015] As a preferred embodiment of the raw material pretreatment device for plastic product processing with anti-clogging mechanism provided by this utility model, the unblocking mechanism further includes an internal threaded cover, and the outer wall of the limiting ring is detachably connected to the internal threaded cover by threads.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a raw material pretreatment device with an anti-clogging mechanism for processing plastic products. By rotating the rotating rod, the clamping rod can be disengaged from the right-angle clamping seat. Subsequently, the rotating rod can be pulled to drive the baffle plate to slide within the support frame, allowing both the moving block and the T-shaped rail to slide within the support frame. This exposes a relatively large area of ​​the top opening of the processing tank. After the moving block is pulled to a certain position within the support frame, the baffle plate can be rotated to a vertical position relative to the moving block. Then, the rotating rod is released, and the clamping rod is engaged in the clamping groove under the action of the torsion spring, thereby restricting the position of the baffle plate. By increasing the exposed area of ​​the top opening of the processing tank, the efficiency of feeding plastic raw material granules into the processing tank is improved, while avoiding the situation of plastic granules clogging the feed inlet, thus improving the practicality of the device.

[0018] This utility model provides a raw material pretreatment device with an anti-clogging mechanism for plastic product processing. By rotating the inner threaded cover, the inner threaded cover can be separated from the limiting ring, allowing the mixed plastic raw material in the processing tank to flow out through the discharge pipe. When the discharge pipe is blocked by plastic raw material particles, the sliding ring can be pulled up and down, which in turn drives multiple U-shaped rods to move up and down. The U-shaped rods moving up and down in the discharge pipe can then clear the material in the discharge pipe. This operation is relatively simple, improving the convenience of clearing the discharge pipe and thus enhancing the practicality of the device. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the raw material pretreatment device with anti-clogging mechanism for processing plastic products provided by this utility model;

[0021] Figure 2 A schematic diagram of the internal structure of the processing tank of the raw material pretreatment device with anti-clogging mechanism for plastic product processing provided by this utility model;

[0022] Figure 3 A partially enlarged schematic diagram of the raw material pretreatment device with an anti-clogging mechanism for processing plastic products provided by this utility model;

[0023] Figure 4 The present invention provides a raw material pretreatment device with an anti-clogging mechanism for processing plastic products. Figure 3 Enlarged view of A in the middle;

[0024] Figure 5 An exploded view of part of the structure of the raw material pretreatment device for processing plastic products with an anti-blocking mechanism provided by this utility model.

[0025] Figure 6 An enlarged structural diagram of the unblocking mechanism of the raw material pretreatment device with anti-clogging mechanism for plastic product processing provided by this utility model.

[0026] The markings in the diagram are explained as follows:

[0027] 1. Processing tank; 2. Fixing plate; 3. Drive motor; 4. Stirring rod; 5. Discharge pipe; 6. Baffle mechanism; 7. Unblocking mechanism; 8. Support frame; 9. Moving block; 10. Baffle plate; 11. T-rail; 12. Housing; 13. Rotating rod; 14. Fixing ring; 15. Torsion spring; 16. Locking rod; 17. Right-angle locking seat; 18. Locking groove; 19. Restricting ring; 20. Internal threaded cover; 21. U-shaped rod; 22. Sliding ring; 23. Spring; 24. Top ball. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] As described in the background art, however, the screw and protective shell in the above-mentioned device may obstruct the feed hopper to a certain extent, which may affect the efficiency of feeding materials into the cylinder and thus reduce the efficiency of raw material pretreatment.

[0030] To solve this technical problem, this utility model provides a raw material pretreatment device with an anti-clogging mechanism for plastic product processing, which is applied to plastic product processing.

[0031] For details, please refer to Figures 1-2 The raw material pretreatment device for plastic product processing with an anti-clogging mechanism specifically includes:

[0032] The processing tank 1 has a fixed plate 2 fixedly connected to its top. A drive motor 3 is fixedly installed on the top of the fixed plate 2. A stirring rod 4 is fixedly connected to the output end of the drive motor 3. The stirring rod 4 is rotatably connected to the inner wall of the fixed plate 2. A discharge pipe 5 is fixedly connected to the bottom of the processing tank 1. A shielding mechanism 6 is provided on the processing tank 1. A clearing mechanism 7 is provided on the discharge pipe 5.

[0033] The shielding mechanism 6 includes a support frame 8, a movable block 9, a shielding component, a rotating component, and a snap-fit ​​component. The support frame 8 is fixedly connected to the outer wall of the treatment tank 1 near the top edge, and two movable blocks 9 are slidably connected to the outer wall of the support frame 8.

[0034] The present invention provides a raw material pretreatment device for plastic product processing with an anti-clogging mechanism. By rotating the rotating rod 13, the clamping rod 16 can be disengaged from the right-angle clamping seat 17. Subsequently, the rotating rod 13 can be pulled to drive the baffle plate 10 to slide within the support frame 8, so that both the moving block 9 and the T-shaped rail 11 can slide within the support frame 8. This exposes a relatively large area of ​​the top opening of the processing tank 1. After the moving block 9 is pulled to a certain position within the support frame 8, the baffle plate 10 can be rotated to a vertical position relative to the moving block 9. Then, the rotating rod 13 is released, and the clamping rod 16 can be engaged into the clamping groove 18 under the elastic force of the torsion spring 15, thereby restricting the position of the baffle plate 10. By increasing the exposed area of ​​the top opening of the processing tank 1, the efficiency of feeding plastic raw material granules into the processing tank 1 is improved, while avoiding the situation of plastic granules clogging the feed inlet, thus improving the practicality of the device.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] Please refer to Figures 1-5 A raw material pretreatment device for processing plastic products with an anti-clogging mechanism, comprising:

[0038] The processing tank 1 has a fixed plate 2 fixedly connected to its top. A drive motor 3 is fixedly installed on the top of the fixed plate 2. A stirring rod 4 is fixedly connected to the output end of the drive motor 3. The stirring rod 4 is rotatably connected to the inner wall of the fixed plate 2. A discharge pipe 5 is fixedly connected to the bottom of the processing tank 1. A shielding mechanism 6 is provided on the processing tank 1. A clearing mechanism 7 is provided on the discharge pipe 5.

[0039] The shielding mechanism 6 includes a support frame 8, a movable block 9, a shielding component, a rotating component, and a snap-fit ​​component. The support frame 8 is fixedly connected to the outer wall of the treatment tank 1 near the top edge, and two movable blocks 9 are slidably connected to the outer wall of the support frame 8.

[0040] The shielding assembly includes a shielding plate 10, two movable blocks 9 which are rotatably connected to the outer wall of the shielding plate 10, and T-shaped rails 11 which are fixedly connected to the opposite sides of the two movable blocks 9. The two T-shaped rails 11 are slidably connected to the inner wall of the support frame 8. The movable blocks 9 and the shielding plate 10 are rotatably connected by hinges. The shielding plate 10 can shield the top opening of the processing tank 1, reducing the splashing of material when the plastic raw material particles are stirred in the processing tank 1.

[0041] The rotating assembly includes a housing 12. The outer wall of the baffle 10 is fixedly connected to the housing 12. The inner wall of the housing 12 is rotatably connected to a rotating rod 13. The rotating rod 13 is rotatably connected to the inner wall of the baffle 10. The outer wall of the rotating rod 13 is fixedly connected to a fixing ring 14. The outer wall of the fixing ring 14 is fixedly connected to a locking rod 16. A torsion spring 15 is sleeved on the outside of the rotating rod 13. The two ends of the torsion spring 15 are fixedly connected to the outer wall of the fixing ring 14 and the inner wall of the housing 12, respectively. The rotating assembly can restrict the baffle 10 from covering the top opening of the processing tank 1 and from being in a vertical position after opening. The housing 12 has a notch to restrict the movement direction of the locking rod 16.

[0042] The snap-fit ​​assembly includes a right-angle snap-fit ​​seat 17. The outer wall of the support frame 8 is fixedly connected to the right-angle snap-fit ​​seat 17. The snap-fit ​​rod 16 is movably snap-fitted into the right-angle snap-fit ​​seat 17. The processing tank 1 is provided with a snap-fit ​​groove 18. The snap-fit ​​assembly, together with the rotating assembly, restricts the position of the baffle plate 10.

[0043] With the above structural design, when materials need to be added to the processing tank 1, the baffle 10 needs to be opened first. By rotating the rotating rod 13, the fixed ring 14 and the locking rod 16 can be moved, causing the torsion spring 15 to deform. Finally, the locking rod 16 is moved away from the right-angle locking seat 17. Then, the rotating rod 13 can be pulled to make the baffle 10 slide in the support frame 8, so that the moving block 9 and the T-shaped rail 11 can slide in the support frame 8. Then, the top opening of the processing tank 1 is exposed to a relatively large area. After the moving block 9 is pulled to a certain position in the support frame 8, the baffle 10 can be rotated to a vertical position relative to the moving block 9. Then, the rotating rod 13 is released, and under the action of the elastic force of the torsion spring 15, The clamping rod 16 is engaged in the slot 18, which restricts the rotation of the baffle plate 10 relative to the moving block 9. Then, the raw materials and related ingredients for plastic products can be added into the processing tank 1. Then, the rotating rod 13 is rotated to make the clamping rod 16 leave the slot 18. The baffle plate 10 is then rotated relative to the moving block 9 so that the baffle plate 10 and the moving block 9 are on the same horizontal plane. Then, the baffle plate 10 is pushed so that both the baffle plate 10 and the moving block 9 slide into the support frame 8. Then, the rotating rod 13 is released so that the clamping rod 16 is engaged in the right-angle clamping seat 17 under the elastic force of the torsion spring 15. Then, the drive motor 3 is controlled to drive the stirring rod 4 to rotate, so as to stir and mix the plastic raw materials and ingredients inside the processing tank 1.

[0044] Example 2:

[0045] The raw material pretreatment device for processing plastic products with an anti-clogging mechanism provided in Example 1 is further optimized, specifically, as follows: Figure 2 and Figure 6As shown, the unblocking mechanism 7 includes a limiting ring 19. The limiting ring 19 is fixedly connected to the outer wall of the discharge pipe 5. Multiple U-shaped rods 21 are slidably connected to the inner wall of the limiting ring 19. A sliding ring 22 is slidably connected to the outer wall of the discharge pipe 5. One end of each of the multiple U-shaped rods 21 located outside the discharge pipe 5 is fixedly connected to the outer wall of the sliding ring 22. A spring 23 is sleeved on the outside of each of the multiple U-shaped rods 21. The two ends of the spring 23 are fixedly connected to the outer walls of the sliding ring 22 and the limiting ring 19, respectively. A top ball 24 is fixedly connected to one end of each of the multiple U-shaped rods 21 located inside the discharge pipe 5. The unblocking mechanism 7 can unblock the blocked discharge pipe 5 to a certain extent. A handle is installed on the sliding ring 22 to facilitate pulling the sliding ring 22.

[0046] The unblocking mechanism 7 also includes an internal threaded cover 20. The outer wall of the limiting ring 19 is detachably connected to the internal threaded cover 20 by threads. The internal threaded cover 20 can prevent the material in the mixing process from flowing out of the treatment tank 1.

[0047] With the above structural design, after the materials and ingredients in the processing tank 1 are processed, when it is time to discharge, rotate the inner thread cover 20 to separate the inner thread cover 20 from the limiting ring 19. Then, pull the sliding ring 22 up and down, which will drive multiple U-shaped rods 21 to move up and down with the assistance of the corresponding springs 23. Then, the U-shaped rods 21 moving up and down in the discharge pipe 5 will clear the material in the discharge pipe 5. After the materials in the processing tank 1 are discharged, the inner thread cover 20 can be installed on the limiting ring 19.

Claims

1. A raw material pretreatment device for plastic product processing with a clogging prevention mechanism, comprising a treatment tank (1), characterized in that: The top of the processing tank (1) is fixedly connected with a fixed plate (2), the top of the fixed plate (2) is fixedly installed with a driving motor (3), the output end of the driving motor (3) is fixedly connected with a stirring rod (4), the stirring rod (4) is rotatably connected with the inner wall of the fixed plate (2), the bottom of the processing tank (1) is fixedly connected with a discharge pipe (5), the processing tank (1) is provided with a shielding mechanism (6), the discharge pipe (5) is provided with a dredging mechanism (7). The shielding mechanism (6) comprises a supporting frame (8), a moving block (9), a shielding assembly, a rotating assembly and a clamping assembly, the outer wall of the supporting frame (8) is fixedly connected with the outer wall of the processing tank (1) and is close to the top edge, and the outer wall of the supporting frame (8) is slidably connected with two moving blocks (9).

2. The raw material pretreatment device for plastic product processing with a clogging prevention mechanism according to claim 1, characterized by, The shielding assembly comprises a shielding plate (10), the outer wall of the shielding plate (10) is rotatably connected with the two moving blocks (9), and the side, away from each other, of the two moving blocks (9) is fixedly connected with a T-shaped rail (11) respectively.

3. The raw material pretreatment device for plastic product processing with a clogging prevention mechanism according to claim 2, characterized by, The rotating assembly comprises a sleeve (12), the outer wall of the shielding plate (10) is fixedly connected with the sleeve (12), the inner wall of the sleeve (12) is rotatably connected with a rotating rod (13), the rotating rod (13) is rotatably connected with the inner wall of the shielding plate (10), the outer wall of the rotating rod (13) is fixedly connected with a fixed ring (14), the outer wall of the fixed ring (14) is fixedly connected with a clamping rod (16), the outer part of the rotating rod (13) is sleeved with a torsional spring (15), and the two ends of the torsional spring (15) are fixedly connected with the outer wall of the fixed ring (14) and the inner wall of the sleeve (12) respectively.

4. The raw material pretreatment device for plastic product processing with a clogging prevention mechanism according to claim 3, characterized by, The clamping assembly comprises a right-angle clamping seat (17), the outer wall of the supporting frame (8) is fixedly connected with the right-angle clamping seat (17), the clamping rod (16) is movably clamped in the right-angle clamping seat (17), and the processing tank (1) is provided with a clamping groove (18).

5. The raw material pretreatment device for plastic product processing with a clogging prevention mechanism according to claim 1, characterized by, The dredging mechanism (7) comprises a limiting ring (19), the outer wall of the discharge pipe (5) is fixedly connected with the limiting ring (19), the inner wall of the limiting ring (19) is slidably connected with a plurality of U-shaped rods (21), the outer wall of the discharge pipe (5) is slidably connected with a sliding ring (22), one end, located outside the discharge pipe (5), of the plurality of U-shaped rods (21) is fixedly connected with the outer wall of the sliding ring (22), the outer part of the plurality of U-shaped rods (21) is sleeved with a spring (23), and the two ends of the spring (23) are fixedly connected with the outer wall of the sliding ring (22) and the limiting ring (19) respectively.

6. The raw material pretreatment device for plastic product processing with a clogging prevention mechanism according to claim 5, characterized by One end, located inside the discharge pipe (5), of the plurality of U-shaped rods (21) is fixedly connected with a top ball (24). The dredging mechanism (7) further comprises an internally-threaded cover (20), and the outer wall of the limiting ring (19) is detachably connected with the internally-threaded cover (20) in a threaded manner.

Citation Information

Patent Citations

  • Raw material pretreatment device with anti-blocking mechanism for plastic product processing

    CN215790950U