Screw combination device for producing high-strength PA (polyamide) reinforced material

By replacing traditional bolt fixing with an inner sleeve and clamping block structure in the thread extrusion equipment, the problem of insufficient connection strength between the screw and the mandrel is solved, thereby improving the structural strength of the mandrel and extending the service life of the equipment.

CN224256023UActive Publication Date: 2026-05-19WEIR NEW MATERIALS (ANHUI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIR NEW MATERIALS (ANHUI) CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing threaded extrusion equipment, the screw and mandrel are fixed by multiple bolts, which damages the structural strength of the mandrel and affects the service life of the equipment.

Method used

The inner sleeve and locking block structure replaces the traditional bolt fixing, and the mandrel and outer block are fixed by spline connection, which reduces the number of screw holes and enhances the structural strength of the mandrel.

Benefits of technology

The structural strength of the mandrel was improved, the number of screw holes was reduced, and the service life of the equipment was extended.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224256023U_ABST
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Abstract

The utility model relates to the technical field of PA (Polyamide) reinforced material production equipment, in particular to a screw combination device for producing a high-strength PA reinforced material, which is used for producing the high-strength PA reinforced material and comprises a mandrel main body, an outer sleeve for sealing and protecting the outer sleeve is sleeved on the outer wall of the mandrel main body, and the outer sleeve is sleeved on the outer wall of the mandrel main body. In the production process of the high-strength PA reinforced material, the inner sleeve and the clamping block are fixed on the outer wall of the core shaft main body to replace the inner sleeve and the clamping block to be fixedly connected with the core shaft outer sleeve block, so that the high-strength PA reinforced material is produced. A worker only needs to arrange several bolts to fix the inner sleeve and the outer wall of the core shaft body, compared with the mode that the core shaft outer sleeve block is directly fixed, the worker does not need to be provided with many threaded holes for fixing, and therefore the influence on the structural strength of the core shaft body can be avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of PA reinforced material production equipment, specifically to a screw assembly device for producing high-strength PA reinforced materials. Background Technology

[0002] High-strength PA (polyamide) reinforced materials refer to composite materials in which the strength and properties of polyamide are improved by adding reinforcing agents (such as glass fiber, carbon fiber, etc.). Polyamide, as an engineering plastic, is widely used due to its excellent mechanical properties, wear resistance, chemical resistance, and good insulation properties. The addition of reinforcing materials can significantly improve its mechanical properties and thermal stability, making it suitable for more complex and demanding working environments.

[0003] Existing high-strength PA (polyamide) reinforced materials are mostly produced by extrusion using threaded extrusion equipment. In the existing threaded extrusion equipment, the working blocks on the screw are usually fixed to the outer wall of the mandrel by bolts. However, the working blocks are usually fixed to the mandrel by multiple bolts, and each mandrel needs to be equipped with multiple working blocks for use. This results in multiple threaded holes being opened on the mandrel for connection, which affects the structural strength of the mandrel. As a result, it is easy to be damaged due to the transmission of torque after long-term use, so there are certain shortcomings.

[0004] In summary, it is necessary to invent a screw assembly device for producing high-strength PA reinforced materials. Utility Model Content

[0005] To address this issue, this utility model provides a screw assembly device for producing high-strength PA reinforced materials. This device solves the problem that the working blocks and mandrels are usually fixed by multiple bolts, and each mandrel needs to be equipped with multiple working blocks for use. This results in multiple screw holes being opened on the mandrel for connection, which affects the structural strength of the mandrel and makes it prone to damage due to torque transmission after long-term use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screw assembly device for producing high-strength PA reinforced materials, which is used for producing high-strength PA reinforced materials, including a mandrel body, an outer sleeve for sealing and protecting the outer sleeve on the outer wall of the mandrel body, and a conveying component for conveying and processing materials on the outer wall of the mandrel body.

[0007] Preferably, the conveying component includes a material conveying section, a material mixing section, and a material shearing section. The material conveying section is sleeved on both ends of the outer wall of the mandrel body. The material mixing section is disposed between the material conveying sections and located on the left side of the outer wall of the mandrel body. The material shearing section is disposed on the right side of the outer wall of the mandrel body and located between the material mixing section and the right-side material conveying section.

[0008] Preferably, the material shearing section includes a second mandrel outer sleeve block, and a sleeve slot is provided through the center of both sides of the outer wall of the second mandrel outer sleeve block, the diameter of the sleeve slot being larger than the diameter of the mandrel body.

[0009] Preferably, an inner sleeve is provided on the outer wall of the mandrel body at a position corresponding to the sleeve slot. The outer wall of the inner sleeve is connected to the spline of the mandrel body, and a locking block is fixed to the side of the outer wall of the inner sleeve.

[0010] Preferably, the multiple card blocks are evenly arranged in a ring array, and the inner wall of the sleeve slot is provided with a clearance slot at the position corresponding to the card block. The outer wall of the card block is slidably connected to the inner wall of the clearance slot.

[0011] Preferably, an arc-shaped slot is provided on the outer wall side of the second mandrel outer sleeve block and on the outside of the sleeve slot. The multiple arc-shaped slots are evenly arranged in a ring array. On the other side of the outer wall of the second mandrel outer sleeve block and at the position corresponding to the arc-shaped slot, an arc-shaped plug is fixed for insertion. The arc-shaped plug is slidably connected to the inner wall of the corresponding arc-shaped slot.

[0012] Preferably, each of the outer wall sides of the second mandrel outer sleeve block is fixed with a shearing block for shearing the material, and the plurality of shearing blocks are evenly arranged in an array on the outer wall of the second mandrel outer sleeve block, with the ends of the plurality of shearing blocks being staggered.

[0013] Preferably, the material conveying section includes a first mandrel outer sleeve block, the structure of the first mandrel outer sleeve block is the same as that of the second mandrel outer sleeve block, and the outer wall side of the first mandrel outer sleeve block is fixed with a conveying thread for conveying materials.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, during the production of high-strength PA reinforced material, an inner sleeve and a locking block are fixed to the outer wall of the mandrel body instead of connecting and fixing it to the outer sleeve of the mandrel body. Personnel only need to set a few bolts to fix the inner sleeve to the outer wall of the mandrel body. Compared with directly fixing the outer sleeve of the mandrel body, personnel do not need to open a lot of threaded holes for fixing, which can avoid affecting the structural strength of the mandrel body and make it more convenient for personnel to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the present invention viewed from the front.

[0017] Figure 2 This is a schematic diagram of the connection between the conveying component and the mandrel body of this utility model;

[0018] Figure 3 This is a side view of the cross-sectional structure of the material conveying section in this utility model.

[0019] Figure 4 This is a side view schematic diagram of the material shearing section in this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the mandrel outer sleeve block of this utility model from a side view.

[0021] In the diagram: 100, outer sleeve; 110, mandrel body; 200, material conveying section; 210, first mandrel outer sleeve block; 220, material conveying thread; 300, material mixing section; 400, material shearing section; 410, second mandrel outer sleeve block; 420, sleeve slot; 430, arc-shaped groove; 440, shearing block; 500, inner sleeve; 510, locking block. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] See attached document Figures 1-5 The present invention provides a screw assembly device for producing high-strength PA reinforced materials, which is used for producing high-strength PA reinforced materials. It includes a mandrel body 110, and an outer sleeve 100 is provided on the outer wall of the mandrel body 110 to seal and protect the outer sleeve 100.

[0024] The outer wall of the mandrel body 110 is provided with a conveying component for conveying and processing materials. The conveying component includes a material conveying section 200, a material mixing section 300, and a material shearing section 400. The material conveying section 200 is sleeved at both ends of the outer wall of the mandrel body 110. The material mixing section 300 is located between the material conveying sections 200 and on the left side of the outer wall of the mandrel body 110. The material shearing section 400 is located on the right side of the outer wall of the mandrel body 110 and between the material mixing section 300 and the right-side material conveying section 200. The material shearing section 400 includes a second mandrel outer sleeve block 410. A sleeve slot 420 is provided through the center of both sides of the outer wall of the second mandrel outer sleeve block 410. The diameter of the sleeve slot 420 is larger than the diameter of the mandrel body 110. The second mandrel outer sleeve block 410 can be inserted through the sleeve slot. The slot 420 is first fitted onto the outer wall of the spindle body 110. An inner sleeve 500 is provided on the outer wall of the spindle body 110 and at the corresponding position of the sleeve slot 420. The outer wall of the inner sleeve 500 is splined to the spindle body 110. A locking block 510 is fixed to the side of the outer wall of the inner sleeve 500. The inner sleeve 500 and the locking block 510 can be fixed as a whole. The inner sleeve 500 and the locking block 510 can replace the outer wall of the spindle body 110 and fix it to the second spindle outer sleeve block 410. The spline connection between the inner sleeve 500 and the locking block 510 can ensure that the spindle body 110 can drive the inner sleeve 500 to rotate together when it rotates. The inner sleeve 500 and the locking block 510 can drive the second spindle outer sleeve block 410 to rotate through the sleeve slot 420.

[0025] Multiple locking blocks 510 are evenly arranged in a ring array. The inner wall of the sleeve slot 420, corresponding to the locking blocks 510, is provided with clearance slots. The outer walls of the locking blocks 510 are slidably connected to the inner walls of the clearance slots. Personnel can fix the inner sleeve 500 to the outer wall of the outer sleeve 100 using a few bolts. Compared to directly fixing the second mandrel outer sleeve block 410, fewer bolts are needed because the mandrel body 110 can transmit power through the spline structure between its outer wall and the inner wall of the inner sleeve 500. The outer wall of the second mandrel outer sleeve block 410, located on the outer side of the sleeve slot 420, has an arc-shaped locking groove 430. Multiple arc-shaped locking grooves 430 are evenly arranged in a ring array. The outer wall of the second mandrel outer sleeve block 410... On the other side, at positions corresponding to the arc-shaped slot 430, there are fixed arc-shaped plugs for insertion. The arc-shaped plugs are slidably connected to the inner wall of the arc-shaped slot 430 at the corresponding positions. The arc-shaped plugs and the arc-shaped slots 430 are provided to align and connect the second mandrel outer sleeve block 410 with other, such as the first mandrel outer sleeve block 210. The outer wall of the second mandrel outer sleeve block 410 is fixed with shearing blocks 440 for cutting materials. Multiple shearing blocks 440 are evenly arranged in an array on the outer wall of the second mandrel outer sleeve block 410. The ends of the multiple shearing blocks 440 are staggered, and the angle between the shearing blocks 440 is set to an obtuse angle. It can rotate with the mandrel body 110, thereby cutting the passing materials.

[0026] The material conveying section 200 includes a first mandrel outer sleeve block 210, the structure of which is the same as that of the second mandrel outer sleeve block 410. The outer wall side of the first mandrel outer sleeve block 210 is fixed with a material conveying thread 220 for conveying materials. The first mandrel outer sleeve block 210 and the second mandrel outer sleeve block 410 can be sealed and connected by an arc-shaped insert and an arc-shaped groove 430.

[0027] The usage process of this utility model is as follows: Those skilled in the art can first assemble the device according to the above description. Then, first remove the material conveying section 200 and the corresponding inner sleeve 500. Next, move the inner sleeve 500 along the outer wall of the spindle body 110 to the corresponding position. Then, simply fix the inner sleeve 500 to the outer wall of the spindle body 110 with bolts. Then, personnel can remove the first spindle outer sleeve block 210 and fit it onto the outer wall of the inner sleeve 500 through the sleeve slot 420. The sleeve slot 420 and the inner sleeve 500 can be connected and fixed through an interference fit. After completion, personnel can remove the material mixing section 300 and... The material mixing section 300, the material shearing section 400, and the material conveying section 200 on the right side are fixed to the outer wall of the mandrel body 110 in the same way. Then, the personnel fix the material mixing section 300, the material shearing section 400, and the material conveying section 200 on the right side to the outer wall of the mandrel body 110 in sequence according to the above description. The two adjacent mandrel outer sleeve blocks can be connected together by the arc-shaped slot 430 and the arc-shaped insert. Finally, a stop block can be fixed on the right side of the outer wall of the mandrel body 110 to tighten and fix the right end of all the working blocks. After completion, the personnel can install the mandrel body 110 on the outer sleeve 100, and then drive the mandrel body 110 to rotate through the drive equipment, so that the conveying component can process and produce high-strength PA (polyamide) reinforced material when rotating.

[0028] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A screw assembly for producing high-strength PA reinforced materials, comprising a mandrel body (110), wherein the outer wall of the mandrel body (110) is fitted with an outer sleeve (100) for sealing and protecting an outer sleeve (100), characterized in that: The outer wall of the mandrel body (110) is provided with a conveying component for conveying and processing materials.

2. The screw assembly device for producing high-strength PA reinforced materials according to claim 1, characterized in that: The conveying component includes a material conveying section (200), a material mixing section (300), and a material shearing section (400). The material conveying section (200) is sleeved on both ends of the outer wall of the mandrel body (110). The material mixing section (300) is disposed between the material conveying sections (200) and located on the left side of the outer wall of the mandrel body (110). The material shearing section (400) is disposed on the right side of the outer wall of the mandrel body (110) and located between the material mixing section (300) and the right side of the material conveying section (200).

3. The screw assembly device for producing high-strength PA reinforced materials according to claim 2, characterized in that: The material shearing section (400) includes a second mandrel outer sleeve block (410). A sleeve slot (420) is provided through the center of both sides of the outer wall of the second mandrel outer sleeve block (410). The diameter of the sleeve slot (420) is larger than the diameter of the mandrel body (110).

4. The screw assembly device for producing high-strength PA reinforced materials according to claim 3, characterized in that: The outer wall of the mandrel body (110) and the corresponding position of the sleeve slot (420) are provided with an inner sleeve (500). The outer wall of the inner sleeve (500) is connected to the spline of the mandrel body (110). The outer side of the inner sleeve (500) is fixed with a locking block (510).

5. The screw assembly device for producing high-strength PA reinforced materials according to claim 4, characterized in that: The multiple card blocks (510) are evenly arranged in a ring array. The inner wall of the sleeve slot (420) and the position corresponding to the card block (510) are all provided with clearance slots. The outer wall of the card block (510) is slidably connected to the inner wall of the clearance slot.

6. The screw assembly device for producing high-strength PA reinforced materials according to claim 4, characterized in that: An arc-shaped slot (430) is provided on the outer side of the second mandrel outer sleeve block (410) and on the outside of the sleeve slot (420). The multiple arc-shaped slots (430) are evenly arranged in a ring array. On the other side of the outer wall of the second mandrel outer sleeve block (410) and at the position corresponding to the arc-shaped slot (430), an arc-shaped plug is fixed for insertion. The arc-shaped plug is slidably connected to the inner wall of the corresponding arc-shaped slot (430).

7. The screw assembly device for producing high-strength PA reinforced materials according to claim 6, characterized in that: The outer wall of the second mandrel outer sleeve block (410) is fixed with shearing blocks (440) for shearing materials. The multiple shearing blocks (440) are evenly arranged in an array on the outer wall of the second mandrel outer sleeve block (410), and the ends of the multiple shearing blocks (440) are staggered.

8. A screw assembly device for producing high-strength PA reinforced materials according to claim 4, characterized in that: The material conveying section (200) includes a first mandrel outer sleeve block (210), the structure of which is the same as that of the second mandrel outer sleeve block (410), and the outer wall side of the first mandrel outer sleeve block (210) is fixed with a material conveying thread (220) for conveying materials.