Extrusion die for processing plastic profiles
By introducing a support device into the extrusion die for processing plastic profiles, the problem of plastic bending under gravity during extrusion is solved, the plastic is stabilized and cooled and solidified, and the performance of the die is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN LUMEI BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-21
AI Technical Summary
The lack of support when plastic is extruded from inside the mold body into the cooling pool makes it easy for the plastic to bend under gravity, affecting cooling and solidification, and thus affecting the performance of the extrusion mold.
Design an extrusion die for processing plastic profiles, equipped with a support device. The lower end of the extruded plastic is supported by a support plate. The support device consists of a square tube, a first bolt, a fixing plate, a second bolt, and a support plate. The movement and fixation of the support plate are achieved by threaded connection.
It effectively prevents plastic from bending under gravity during extrusion, improves the cooling and curing quality of plastic, and thus enhances the performance of the extrusion die.
Smart Images

Figure CN224527951U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molds, and in particular to an extrusion mold for processing plastic profiles. Background Technology
[0002] Extrusion molds are used to extrude heated raw materials through a die with a specific shape to form continuous profiles or products. They are widely used in industries such as plastics, metals, and rubber.
[0003] When processing irregularly shaped plastic materials, a screw or piston forces molten plastic into a mold body under high pressure. The plastic then forms the shape through the mold's orifice, undergoes extrusion, and is finally cooled, solidified, and cut into the required length. However, when the plastic is extruded from the mold body and reaches the cooling tank, the lack of support makes it susceptible to bending under gravity. This can hinder subsequent cooling and solidification, ultimately affecting the performance of the extrusion mold. Utility Model Content
[0004] The technical problem this invention aims to solve is that when plastic is extruded from inside the mold body and reaches the cooling pool, the extruded plastic is not supported, causing it to be easily bent by gravity, which in turn affects the subsequent cooling and solidification of the plastic, thus affecting the performance of the extrusion mold.
[0005] The technical solution adopted by this utility model to solve its technical problem is: an extrusion mold for processing plastic profiles, including a mold body, a support device provided on one side of the mold body, and the support device supporting the lower end of the extruded plastic through a support plate.
[0006] The effect achieved by the above components is as follows: when processing plastic irregular materials, the hot melted plastic is squeezed into the mold body under high pressure by the screw or piston, and formed through the orifice of the mold body, and then extruded. At this time, a support device is used to support the lower end of the plastic extruded from the mold body. Finally, the material is cooled, solidified, and cut into products of the required length.
[0007] Preferably, the support device includes a square tube, a first bolt, a fixing plate, a second bolt, and a support plate. The square tube is located on one side of the mold body. The first bolt is inserted into one side of the square tube to connect with the fixing plate. The second bolt is inserted into one side of the fixing plate, and one side of the second bolt rotates on the side of the support plate.
[0008] The effect achieved by the above components is as follows: When using the support device, move the fixed plate so that one side of the fixed plate is inserted into the square tube fixed on one side of the mold body. Then rotate the first bolt so that the first bolt passes through the square tube and is threadedly fixed to the fixed plate. Then rotate the second bolt so that the second bolt rotates threadedly inside the fixed plate and rotates on one side of the support plate, thereby driving the support plate to move upward and reach the lower end of the plastic extruded from the mold body to support the plastic. By using the support device, the lower end of the plastic extruded from the mold body can be supported, preventing the plastic from being easily bent by gravity and affecting the subsequent cooling and solidification of the plastic, thereby improving the performance of the extrusion mold.
[0009] Preferably, a washer is provided on the side of the first bolt near the square tube to increase the contact area of the first bolt near the square tube.
[0010] The effect achieved by the above components is to increase the contact area between the first bolt and the square tube by abutting the gasket, thereby enabling the first bolt to better fix the fixing plate.
[0011] Preferably, a plurality of anti-slip blocks are provided on one side of the second bolt to increase the friction on one side of the second bolt.
[0012] The effect achieved by the above components is to increase the friction on one side of the second bolt by fixing it with several anti-slip blocks, thereby making the second bolt easier to rotate.
[0013] Preferably, the support plate has a stabilizing plate on the side near the fixing plate, and the fixing plate has a through hole on one side, through which the stabilizing plate passes.
[0014] The effect achieved by the above components is as follows: by fixing the stabilizing plate to the side of the support plate near the fixed plate, and by having the stabilizing plate pass through the side of the fixed plate, it is slidably connected to the fixed plate, thereby limiting the movement trajectory of the support plate and making the support plate move more stably.
[0015] Preferably, baffles are provided on both sides of the support plate to block the sides of the support plate.
[0016] The effect achieved by the above components is that the baffles fixed on both sides of the support plate block the two sides of the support plate, thereby protecting the plastic sides at the top of the support plate.
[0017] Preferably, the support plate has several rollers on the side away from the second bolt to reduce the size of one side of the support plate.
[0018] The effect achieved by the above components is that by having several rollers roll on one side of the support plate, the contact area between the support plate and the plastic is reduced, making it easier for the plastic to move along the support plate.
[0019] Preferably, a control frame is provided on one side of the support plate to increase the size of one side of the support plate.
[0020] The effect achieved by the above components is to make the support plate easier to move and install by fixing the control frame near the second bolt, thereby improving the performance of the support plate.
[0021] In summary, the beneficial effects of this utility model are as follows: By using a support device, the lower end of the plastic extruded from inside the mold body can be supported, preventing the plastic from easily bending under gravity and affecting the subsequent cooling and solidification of the plastic, thereby improving the performance of the extrusion mold. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the support device of this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the three-dimensional structure viewed from below; Figure 4 This utility model Figure 3 Enlarged view of point A.
[0024] Legend: 1. Mold body; 2. Support device; 21. Square tube; 22. First bolt; 23. Fixing plate; 24. Second bolt; 25. Support plate; 26. Shim; 27. Anti-slip block; 28. Stabilizing plate; 29. Through hole; 210. Baffle; 211. Circular roller; 212. Control frame. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Figures 1 to 4 The extrusion die shown includes a die body 1, with a support device 2 on one side of the die body 1. The support device 2 supports the lower end of the extruded plastic through a support plate 25. During the processing of the plastic profile, molten plastic is forced into the die body 1 under high pressure by a screw or piston, and formed through the orifice of the die body 1 before extrusion. The support device 2 supports the lower end of the plastic extruded from the die body 1. Finally, the material is cooled, solidified, and cut into products of the required length.
[0028] Figures 1 to 4 The support device 2 shown includes a square tube 21, a first bolt 22, a fixing plate 23, a second bolt 24 and a support plate 25. The square tube 21 is located on one side of the mold body 1. The first bolt 22 is inserted into one side of the square tube 21 and connected to the fixing plate 23. The second bolt 24 is inserted into one side of the fixing plate 23 and rotates on one side of the support plate 25. When using the support device 2, move the fixed plate 23 so that one side of the fixed plate 23 is inserted into the square tube 21 fixed on one side of the mold body 1. Then rotate the first bolt 22 so that the first bolt 22 passes through the square tube 21 and is threadedly fixed to the fixed plate 23. Then rotate the second bolt 24 so that the second bolt 24 rotates threadedly inside the fixed plate 23 and rotates on one side of the support plate 25, thereby driving the support plate 25 to move upward and reach the lower end of the plastic extruded from the mold body 1 to support the plastic. By using the support device 2, the lower end of the plastic extruded from the mold body 1 can be supported, preventing the plastic from being easily bent by gravity and affecting the subsequent cooling and solidification of the plastic, thereby improving the performance of the extrusion mold.
[0029] Figures 1 to 4 The first bolt 22 shown has a washer 26 on the side near the square tube 21 to increase the contact area of the first bolt 22 near the square tube 21. The washer 26 abuts against the first bolt 22 and the square tube 21, increasing the contact area and allowing the first bolt 22 to better secure the fixing plate 23. The second bolt 24 has several anti-slip blocks 27 on one side to increase the friction on that side. The anti-slip blocks 27 secure the second bolt 24, further increasing the friction and making it easier to rotate the second bolt 24.
[0030] Figures 1 to 4The support plate 25 shown has a stabilizing plate 28 on the side near the fixed plate 23. A through hole 29 is provided on one side of the fixed plate 23, and the stabilizing plate 28 passes through the through hole 29 on the side of the fixed plate 23. The stabilizing plate 28 is fixed to the support plate 25 on the side near the fixed plate 23, and since it passes through the fixed plate 23, it provides a sliding connection with the fixed plate 23, thus limiting the movement trajectory of the support plate 25 and making its movement more stable. Baffles 210 are provided on both sides of the support plate 25 to block the sides of the support plate 25. The baffles 210 fixed on both sides of the support plate 25 block the sides of the support plate 25, thus protecting the plastic sides of the upper end of the support plate 25.
[0031] Figures 1 to 4 The support plate 25 shown has several rollers 211 on the side away from the second bolt 24 to reduce the size of one side of the support plate 25. By having the rollers 211 roll along one side of the support plate 25, the contact area between the support plate 25 and the plastic is reduced, making it easier for the plastic to move along the support plate 25. A control frame 212 is provided on one side of the support plate 25 to increase its size. By fixing the control frame 212 to the side of the support plate 25 near the second bolt 24, the support plate 25 can be moved and installed more easily, thus improving its usability.
[0032] Working Principle: When processing shaped plastic materials, the molten plastic is forced into the mold body 1 under high pressure by a screw or piston. The plastic is then shaped through the orifice of the mold body 1 and extruded. A support device 2 is used to support the lower end of the plastic extruded from the mold body 1. Finally, the material is cooled, solidified, and cut into products of the required length. When using the support device 2, the fixed plate 23 is moved so that one side of the fixed plate 23 is inserted into the square tube 21 fixed to one side of the mold body 1. Then, the first bolt 22 is rotated, passing through the square tube 21 and threadedly fixed to the fixed plate 23. The second bolt 24 is then rotated, causing it to rotate threadedly inside the fixed plate 23 and also rotating on the support plate 25 side. This causes the support plate 25 to move upwards, reaching the lower end of the extruded plastic from the mold body 1 to support it. By using the support device 2, the lower end of the extruded plastic from the mold body 1 is supported, preventing the plastic from easily bending under gravity and affecting subsequent cooling and solidification, thus improving the performance of the extrusion mold.
[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the disclosed technical content and apply them to other fields. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.
Claims
1. An extrusion die for processing plastic profiles, comprising a die body (1), characterized in that: The mold body (1) is provided with a support device (2) on one side, and the support device (2) supports the lower end of the extruded plastic through the support plate (25).
2. The extrusion die for processing plastic profiles according to claim 1, characterized in that: The support device (2) includes a square tube (21), a first bolt (22), a fixing plate (23), a second bolt (24), and a support plate (25). The square tube (21) is located on one side of the mold body (1). The first bolt (22) is inserted on one side of the square tube (21) and connected to the fixing plate (23). The second bolt (24) is inserted on one side of the fixing plate (23), and one side of the second bolt (24) rotates on one side of the support plate (25).
3. An extrusion die for processing plastic profiles according to claim 2, characterized in that: The first bolt (22) is provided with a washer (26) on the side near the square tube (21) to increase the contact area of the first bolt (22) on the side near the square tube (21).
4. An extrusion die for processing plastic profiles according to claim 3, characterized in that: The second bolt (24) has several anti-slip blocks (27) on one side to increase the friction on one side of the second bolt (24).
5. An extrusion die for processing plastic profiles according to claim 4, characterized in that: The support plate (25) has a stabilizing plate (28) on the side near the fixing plate (23), and a through hole (29) is opened on one side of the fixing plate (23). The stabilizing plate (28) passes through the through hole (29) on one side of the fixing plate (23).
6. An extrusion die for processing plastic profiles according to claim 5, characterized in that: The support plate (25) is provided with baffles (210) on both sides to block the sides of the support plate (25).
7. An extrusion die for processing plastic profiles according to claim 6, characterized in that: The support plate (25) has several rollers (211) on the side away from the second bolt (24) to reduce the size of one side of the support plate (25).
8. An extrusion die for processing plastic profiles according to claim 7, characterized in that: A control frame (212) is provided on one side of the support plate (25) to increase the size of one side of the support plate (25).