Extrusion die for wood plastic lined steel sheet or fiberglass cloth

By introducing die body components, die head, irregularly shaped filler blocks, and an automated control system into the extrusion die, the problem of the die being unable to adapt to products of different specifications has been solved, achieving efficient production and stable product quality.

CN224588573UActive Publication Date: 2026-08-04HUBEI GAOXIN WPC EXTRUSION CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI GAOXIN WPC EXTRUSION CO LTD
Filing Date
2025-05-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing extrusion dies require significant modifications or redesigns when producing wood-plastic composite lined with steel plates or fiberglass cloth of different specifications or shapes, making them inconvenient to use.

Method used

An extrusion mold for wood-plastic composite lined with steel plate or fiberglass cloth was designed, comprising a mold body assembly, a die head, a shaped filler block, a laser rangefinder sensor, and an automated control system. The laser rangefinder sensor monitors the position of the shaped filler block in real time, and the main control unit controls pneumatic and electric telescopic rods to adjust the flow channel structure, ensuring uniform material distribution and sealing.

Benefits of technology

This enables the mold to adapt to the production of products of different specifications, improves production efficiency and product quality, ensures uniform material distribution and sealing, and reduces the complexity of modifications and designs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224588573U_ABST
    Figure CN224588573U_ABST
Patent Text Reader

Abstract

The utility model provides an extrusion die of wood -plastic lining steel sheet or glass fibre cloth relates to extrusion die technical field, including the special-shaped filler, the inside of special-shaped filler is provided with the wood -plastic runner of wood -plastic material guiding, the one end intercommunication of wood -plastic runner has the drainage groove, the inside of wood -plastic runner is provided with the block. The utility model has the advantages of: setting up several different sizes special-shaped filler in the die head inside extrusion die forms the annular structure of different diameters, and setting up the wood -plastic runner of wood -plastic material in the inside special-shaped filler, in the process of forming can according to the size control each special-shaped filler and form the required forming runner structure of activity, and make the wood -plastic runner between each special-shaped filler intercommunication, be convenient for according to the demand of use to adjust the size and structure of runner inside mould, be favorable to the production and processing of different structure's product, improve the convenience of extrusion die use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of extrusion die technology, and in particular to extrusion dies for wood-plastic composite lined with steel plates or fiberglass cloth. Background Technology

[0002] Wood-plastic composite (WPC) is a new type of composite material that combines the advantages of wood and plastic, possessing a variety of excellent properties and finding wide application in multiple fields. To enhance the performance of WPC, steel plates are typically glued to the internal cavities or specific areas of the WPC board, or fiberglass cloth is bonded to the WPC material through a specific process. The fiberglass cloth can be laid flat on the surface of the WPC board or sandwiched in the middle layer of the WPC material. Extrusion molds are required for shaping during the production of the inner steel plate or fiberglass cloth lining.

[0003] However, when existing extrusion molds are needed to produce wood-plastic products with steel plates or fiberglass cloth linings of different specifications or shapes, the cavity of the mold that accommodates the steel plate or fiberglass cloth needs to be significantly modified or redesigned and manufactured, which is very inconvenient. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose an extrusion mold for wood-plastic composite lining steel plate or fiberglass cloth, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides an extrusion mold for wood-plastic composite lined with steel plate or fiberglass cloth, including a mold body assembly for support. The mold body assembly has a die head inside that defines the shape of the extruded product. The die head has a flow channel inside that accommodates material. The flow channel has a plurality of linearly arrayed irregularly shaped filler blocks inside. Each irregularly shaped filler block has a wood-plastic flow channel inside that guides the flow of wood-plastic material. One end of each wood-plastic flow channel is connected to a channel for injecting wood-plastic material. A blocking block is provided inside the wood-plastic flow channel to seal it. The blocking block is signal-connected to a main control unit for automated control. The main control unit is signal-connected to a laser rangefinder sensor for detecting the irregularly shaped filler blocks. A pressing sheet is provided on one side of the die head to seal and compress the irregularly shaped filler blocks.

[0006] Preferably, in any of the above embodiments, the mold assembly has a fixing groove for fixing the mold head inside, and the mold head has a movable groove for accommodating and adjusting the irregularly shaped filling block inside.

[0007] The above technical solution provides a stable mounting position for the die head through the fixed groove inside the die body assembly, ensuring that the die head will not shake during operation and guaranteeing the accuracy of the extruded products. The movable groove inside the die head provides space for the irregularly shaped filler blocks to move, making it convenient to store and adjust them according to production needs, so that the mold can adapt to the production of products of different specifications.

[0008] Preferably, in any of the above schemes, the flow channel is configured as a stepped guide groove, the flow channel is located inside the mold assembly, and inlet and outlet ports located inside the mold assembly are opened on both sides of the flow channel.

[0009] The above technical solution is adopted: the flow channel is set as a stepped guide groove, which helps to guide wood-plastic materials, steel plates or fiberglass cloth to flow in the mold head along a specific path, ensuring uniform material distribution and improving product quality. The flow channel is located inside the mold assembly, and the inlet and outlet ports on both sides facilitate the entry of raw materials and the discharge of molded products, optimizing the production process and improving production efficiency.

[0010] Preferably, in any of the above embodiments, the irregular filling block includes a pneumatic telescopic rod connected to the main control unit and an adjusting mold head forming a ring structure. The pneumatic telescopic rod is fixedly installed inside the mold head, and one end of the pneumatic telescopic rod is fixedly installed with the adjusting mold head that moves inside the mold head.

[0011] The above technical solution is adopted: the pneumatic telescopic rod is controlled by the main control unit and installed inside the mold head. When it is necessary to adjust the flow channel structure, the main control unit controls the pneumatic telescopic rod to extend and retract, driving the adjusting mold head to move inside the mold head. Multiple adjusting heads surround to form a ring structure, and different combinations are used to form ring structures of different diameters, thereby changing the size and shape of the flow channel to meet the production needs of different products.

[0012] Preferably, in any of the above embodiments, the wood-plastic flow channel is formed inside the adjusting mold head, the adjusting mold head has a sealing groove that communicates with the wood-plastic flow channel, and the flow channel is formed inside the mold body assembly.

[0013] The above technical solution is adopted: the wood-plastic flow channel is opened inside the adjusting mold head, providing a channel for the wood-plastic material to flow evenly into the mold. The sealing groove inside the adjusting mold head is connected to the wood-plastic flow channel, which enhances the sealing performance of the wood-plastic flow channel and prevents material leakage. The flow channel introduces the wood-plastic material into the wood-plastic flow channel, ensuring the smooth supply of wood-plastic material.

[0014] Preferably, in any of the above embodiments, the blocking block includes an electric telescopic rod connected to the main control unit and a sealing block for sealing. The electric telescopic rod is fixedly installed inside the adjusting mold head, and a sealing block that moves inside the adjusting mold head is fixedly installed at one end of the electric telescopic rod.

[0015] The above technical solution is adopted as follows: When it is necessary to control the flow or stop of wood-plastic material, the main control unit controls the extension and retraction of the electric telescopic rod, which drives the sealing block to move in the adjusting mold head. The sealing block can close the wood-plastic flow channel, accurately control the flow path and filling amount of wood-plastic material, and ensure the stability of product quality.

[0016] Preferably, in any of the above embodiments, the laser rangefinder is fixedly installed inside the adjusting mold head, the pressing plate includes a pressing spring for support and a pressing plate for compression, the pressing spring is fixedly installed inside the mold assembly, and one end of the pressing spring is fixedly installed with a pressing plate that moves inside the mold assembly.

[0017] The above technical solution involves a laser rangefinder sensor fixed inside the adjusting mold head to monitor the position of the irregularly shaped filler block in real time and feed the data back to the main control unit. The main control unit then precisely controls the pneumatic telescopic rod based on this data, improving the accuracy of the irregularly shaped filler block adjustment. The pressing spring of the pressing plate is installed inside the mold assembly to provide elasticity for the pressing plate. The pressing plate moves within the mold assembly to seal and compress the irregularly shaped filler block, enhancing its airtightness during operation, preventing material leakage, and ensuring the molding effect of the product.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0019] 1. Several irregularly shaped filler blocks of different sizes are set inside the die head of the extrusion mold to form annular structures of different diameters. Wood-plastic material flow channels are opened inside the irregularly shaped filler blocks. During the molding process, the movement of each irregularly shaped filler block can be controlled according to the size of the molding structure to form the required molding flow channel structure. The wood-plastic flow channels between each irregularly shaped filler block are connected, which makes it easy to adjust the size and structure of the flow channels inside the mold according to the needs of use. This is beneficial for the production and processing of products with different structures and improves the convenience of using the extrusion mold.

[0020] 2. A laser rangefinder is installed at one end of the irregular-shaped filler block to monitor its position in real time. This allows for position adjustment of different irregular-shaped filler blocks based on the detected data, improving the accuracy and convenience of adjustment. A compression plate is installed on one side of the irregular-shaped filler block to seal and compress it, improving the airtightness of the irregular-shaped filler block during operation.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;

[0024] Figure 2 This is a partial structural schematic diagram according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the irregular-shaped filling block according to an embodiment of the present utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of the mold assembly according to an embodiment of the present utility model;

[0027] Figure 5 This is a cross-sectional structural diagram of the irregularly shaped filling block according to an embodiment of the present utility model;

[0028] Among them: 1-mold body assembly, 2-mold head, 3-flow channel, 4-irregular filling block, 41-pneumatic telescopic rod, 42-adjusting mold head, 5-wood-plastic flow channel, 6-drainage groove, 7-blocking block, 71-electric telescopic rod, 72-sealing block, 8-laser range sensor, 9-pressing sheet, 91-pressing spring, 92-pressing sheet. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0030] like Figure 1-5 As shown, the extrusion mold for the wood-plastic composite inner lining steel plate or fiberglass cloth of this utility model embodiment includes a mold body assembly 1 for support. The mold body assembly 1 is provided with a die head 2 that defines the shape of the extruded product. The die head 2 is provided with a material flow channel 3 inside. The flow channel 3 is provided with a plurality of linearly arrayed irregularly shaped filler blocks 4 inside. The irregularly shaped filler blocks 4 are provided with wood-plastic flow channels 5 for guiding the wood-plastic material inside. One end of the wood-plastic flow channel 5 is connected to a guide groove 6 for injecting wood-plastic material. The wood-plastic flow channel 5 is provided with a block 7 to seal it inside. The block 7 is signal-connected to a main control unit for automatic control. The main control unit is signal-connected to a laser rangefinder sensor 8 for detecting the irregularly shaped filler blocks 4. A pressing sheet 9 is provided on one side of the die head 2 to seal and compress the irregularly shaped filler blocks 4.

[0031] Preferably, in any of the above solutions, the mold assembly 1 has a fixing groove for fixing the mold head 2, and the mold head 2 has a movable groove for storing and adjusting the irregular filling block 4.

[0032] The above technical solution is adopted: the fixing groove inside the mold assembly 1 provides a stable installation position for the mold head 2, ensuring that the mold head 2 will not shake during operation and guaranteeing the accuracy of the extruded products. The movable groove inside the mold head 2 provides a space for the irregular filling block 4 to move, making it convenient to store and adjust it according to production needs, so that the mold can adapt to the production of products of different specifications.

[0033] Preferably, the flow channel 3 is configured as a stepped material guide groove, the flow channel 3 is located inside the mold assembly 1, and the flow channel 3 has inlet and outlet ports located inside the mold assembly 1 on both sides.

[0034] The above technical solution is adopted: the flow channel 3 is set as a stepped guide groove, which helps to guide wood-plastic materials, steel plates or fiberglass cloth to flow in the mold head 2 along a specific path, ensuring uniform material distribution and improving product quality. The flow channel 3 is located inside the mold assembly 1, and the inlet and outlet ports on both sides facilitate the entry of raw materials and the discharge of molded products, optimize the production process and improve production efficiency.

[0035] Preferably, in any of the above schemes, the irregular filling block 4 includes a pneumatic telescopic rod 41 connected to the main control unit and an adjusting mold head 42 forming a ring structure. The pneumatic telescopic rod 41 is fixedly installed inside the mold head 2, and one end of the pneumatic telescopic rod 41 is fixedly installed with the adjusting mold head 42 that moves inside the mold head 2.

[0036] The above technical solution is adopted: the pneumatic telescopic rod 41 is controlled by the main control unit and installed inside the mold head 2. When it is necessary to adjust the flow channel structure, the main control unit controls the pneumatic telescopic rod 41 to extend and retract, driving the adjusting mold head 42 to move inside the mold head 2. Multiple adjusting mold heads 42 surround to form a ring structure, and different diameter ring structures are formed through different combination methods, thereby changing the size and shape of the flow channel to meet the production needs of different products.

[0037] Preferably, in any of the above schemes, the wood-plastic flow channel 5 is opened inside the adjusting mold head 42, the adjusting mold head 42 is provided with a sealing groove that communicates with the wood-plastic flow channel 5, and the flow channel 6 is opened inside the mold body assembly 1.

[0038] The above technical solution is adopted: the wood-plastic flow channel 5 is opened inside the adjusting mold head 42, providing a guide channel for the wood-plastic material, so that the wood-plastic material can be evenly filled into the mold. The sealing groove inside the adjusting mold head 42 is connected to the wood-plastic flow channel 5, which enhances the sealing performance of the wood-plastic flow channel 5 and prevents material leakage. The flow channel 6 introduces the wood-plastic material into the wood-plastic flow channel 5, ensuring the smooth supply of wood-plastic material.

[0039] Preferably, in any of the above schemes, the block 7 includes an electric telescopic rod 71 connected to the main control unit and a sealing block 72 for sealing. The electric telescopic rod 71 is fixedly installed inside the adjusting mold head 42, and a sealing block 72 that moves inside the adjusting mold head 42 is fixedly installed at one end of the electric telescopic rod 71.

[0040] The above technical solution is adopted: when it is necessary to control the flow or stop of wood-plastic material, the main control unit controls the extension and retraction of the electric telescopic rod 71, which drives the sealing block 72 to move within the adjusting mold head 42. The sealing block 72 can seal the wood-plastic flow channel 5, accurately control the flow path and filling amount of wood-plastic material, and ensure the stability of product quality.

[0041] Preferably, in any of the above schemes, the laser rangefinder 8 is fixedly installed inside the adjusting mold head 42, and the pressing plate 9 includes a pressing spring 91 for support and a pressing plate 92 for compression. The pressing spring 91 is fixedly installed inside the mold assembly 1, and one end of the pressing spring 91 is fixedly installed with the pressing plate 92 that moves inside the mold assembly 1.

[0042] The above technical solution is adopted as follows: the laser rangefinder 8 is fixed inside the adjusting mold head 42 to monitor the position information of the irregular filling block 4 in real time and feed the data back to the main control unit. The main control unit accurately controls the pneumatic telescopic rod 41 based on the data to improve the accuracy of the adjustment of the irregular filling block 4. The pressing spring 91 of the pressing plate 9 is installed inside the mold assembly 1 to provide elasticity to the pressing plate 92. The pressing plate 92 moves inside the mold assembly 1 to seal and compress the irregular filling block 4, which enhances the airtightness of the irregular filling block 4 during operation, avoids material leakage, and ensures the molding effect of the product.

[0043] The working principle of the extrusion mold for wood-plastic composite lining with steel plate or fiberglass cloth of this utility model is as follows:

[0044] According to the specifications of the required product, the main control unit controls the pneumatic telescopic rod 41 of the irregular filling block 4 to extend and retract, driving the adjusting mold head 42 to move in the movable groove of the mold head 2, so that multiple irregular filling blocks 4 are combined to form a flow channel structure of specific size and shape. The steel plate or fiberglass cloth is placed in the appropriate position in the flow channel 3 of the mold head 2. The wood-plastic material flows into the wood-plastic flow channel 5 of the irregular filling block 4 through the flow channel 6 inside the mold body assembly 1. During the flow, the main control unit can control the electric telescopic rod 71 of the blocking block 7 to drive the sealing block 72 to close or open the wood-plastic flow channel 5, accurately controlling the flow and filling amount of the wood-plastic material. After the wood-plastic material is filled, the pressing spring 91 of the pressing plate 9 pushes the pressing plate 92 to seal and squeeze the irregular filling block 4, ensuring that the material is tightly bonded and improving the airtightness and molding quality of the product.

[0045] Compared with the prior art, the present invention has the following advantages:

[0046] 1. Several irregularly shaped filler blocks 4 of different sizes are set inside the die head 2 of the extrusion mold to form annular structures of different diameters. Wood-plastic material flow channels 5 are opened inside the irregularly shaped filler blocks 4. During the molding process, the movement of each irregularly shaped filler block 4 can be controlled according to the size of the molding structure to form the required molding flow channel structure, and the wood-plastic flow channels 5 between each irregularly shaped filler block 4 are connected. This makes it easy to adjust the size and structure of the flow channels inside the mold according to the needs of use, which is beneficial for the production and processing of products with different structures and improves the convenience of using the extrusion mold.

[0047] 2. A laser rangefinder 8 is installed at one end of the irregular-shaped filler block 4 to monitor its position in real time, so as to facilitate the adjustment of the position of different irregular-shaped filler blocks 4 according to the detection data, thereby improving the accuracy and convenience of adjusting the irregular-shaped filler block 4. A compression sheet 9 is installed on one side of the irregular-shaped filler block 4 to seal and compress it, thereby improving the airtightness of the irregular-shaped filler block 4 during operation.

Claims

1. Extrusion die for wood-plastic lined steel sheets or fiberglass cloths, comprising a die body assembly (1) supported, inside which a die head (2) is arranged which defines the shape of the extruded product, characterized in that: The mold head (2) has a material-accommodating flow channel (3) inside. The flow channel (3) has a number of linear array irregular filling blocks (4) inside. The irregular filling blocks (4) have a wood-plastic flow channel (5) for guiding the flow of wood-plastic material inside. One end of the wood-plastic flow channel (5) is connected to a flow channel (6) for injecting wood-plastic material. The wood-plastic flow channel (5) has a sealing block (7) inside. The sealing block (7) is connected to a main control unit for automatic control. The main control unit is connected to a laser range sensor (8) for detecting the irregular filling blocks (4). A pressing sheet (9) for sealing and squeezing the irregular filling blocks (4) is provided on one side of the mold head (2).

2. The extrusion die for wood plastic composite inner steel sheet or fiberglass cloth according to claim 1, characterized in that: The mold assembly (1) has a fixing groove for fixing the mold head (2) inside, and the mold head (2) has a movable groove for storing and adjusting the irregular filling block (4) inside.

3. The extrusion die for wood plastic composite inner steel sheet or fiberglass cloth according to claim 2, characterized in that: The flow channel (3) is configured as a stepped material guide groove. The flow channel (3) is located inside the mold assembly (1). The flow channel (3) has inlet and outlet ports located inside the mold assembly (1) on both sides.

4. The extrusion die for wood plastic composite inner steel sheet or glass cloth according to claim 3, characterized in that: The irregular filling block (4) includes a pneumatic telescopic rod (41) connected to the main control unit and an adjusting mold head (42) forming a ring structure. The pneumatic telescopic rod (41) is fixedly installed inside the mold head (2), and an adjusting mold head (42) that moves inside the mold head (2) is fixedly installed at one end of the pneumatic telescopic rod (41).

5. The extrusion die for wood plastic composite inner steel sheet or fiberglass cloth according to claim 4, characterized in that: The wood-plastic flow channel (5) is located inside the adjusting mold head (42), and the adjusting mold head (42) has a sealing groove connected to the wood-plastic flow channel (5). The flow channel (6) is located inside the mold assembly (1).

6. The extrusion die for wood plastic composite inner steel sheet or glass cloth according to claim 5, characterized in that: The block (7) includes an electric telescopic rod (71) connected to the main control unit signal and a sealing block (72) for sealing. The electric telescopic rod (71) is fixedly installed inside the adjusting mold head (42), and a sealing block (72) that moves inside the adjusting mold head (42) is fixedly installed at one end of the electric telescopic rod (71).

7. The extrusion die for wood plastic composite inner steel sheet or fiberglass cloth according to claim 6, characterized in that: The laser rangefinder (8) is fixedly installed inside the adjusting mold head (42). The pressing plate (9) includes a pressing spring (91) for support and a pressing plate (92) for compression. The pressing spring (91) is fixedly installed inside the mold assembly (1). One end of the pressing spring (91) is fixedly installed with a pressing plate (92) that moves inside the mold assembly (1).