Co-extrusion plastic-wood texture molding device

Abstract

The utility model discloses a co-extrusion plastic wood grain shaping device which comprises a compression molding structure, capsule-shaped groove bodies 112 are symmetrically formed in the positions, on the input side and the output side of the upper side of a conveying belt, of a front wall plate and a rear wall plate of a conveyor in the compression molding structure, and a first bearing seat is arranged in the groove body 112 on the input side in a sliding mode and rotationally connected with a veneering rolling pipe; the veneering rolling pipe is communicated with the heat preservation liquid channel through a heat preservation connecting pipe; a second bearing seat is arranged in the output side groove body 112 in a sliding mode, fixes a spring piston and is rotationally connected with an embossing roller, a lifting hole channel where the spring piston is located is communicated with the heat preservation liquid channel, and a rolling and sticking brush is arranged on the upper side of the embossing roller and movably arranged above the output side of the conveyor through a third bearing seat. The device can dynamically adjust the pressure of the embossing roller in real time according to the temperature change of a co-extrusion material through the cooperation of the veneering rolling pipe, the heat preservation liquid channel and the spring piston, solves the texture problem caused by the temperature change in the traditional process, and improves the texture quality and stability of a co-extrusion plastic wood product.

Description

Technical Field

[0001] This utility model relates to the field of building materials production technology, specifically a co-extruded wood-plastic texture shaping device. Background Technology

[0002] With the increasing demand for environmentally friendly, aesthetically pleasing, and durable building decoration materials, wood-plastic composite (WPC) materials have emerged. However, traditional WPC materials differ from natural wood in texture and feel, making it difficult to meet the market's pursuit of high-quality decorative effects. Against this backdrop, the research and application of co-extrusion WPC texture shaping technology has become particularly important. It aims to simulate realistic wood textures through various advanced technologies, allowing WPC materials to not only retain their own advantages such as environmental friendliness, ease of processing, and corrosion resistance, but also perfectly replicate the beauty of natural wood textures in appearance. This enhances their decorative appeal and market competitiveness, enabling their widespread application in interior and exterior decoration, landscaping, and other fields, bringing new changes and development to the building decoration industry.

[0003] In the current online embossing process for co-extruded wood-plastic textures, the temperature of the co-extruded raw materials inevitably fluctuates. When the embossing rollers press the texture, existing equipment lacks the ability to make real-time dynamic adjustments based on temperature feedback. When the temperature of the co-extruded material is too high, the material softens excessively, and under the action of the rollers, it is very easy for the texture to be distorted and deformed. These texture defects caused by temperature fluctuations seriously affect the production quality of the product.

[0004] To address these issues, this invention provides a co-extruded wood grain molding device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a co-extruded wood-plastic texture shaping device, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a co-extruded wood grain molding device, comprising a compression molding structure, wherein the compression molding structure comprises a conveyor, and the surfaces of the front and rear wall panels of the conveyor are symmetrically provided with capsule-shaped grooves on the upper input and output sides of the conveyor belt;

[0007] The input side tank is equipped with a first bearing seat that slides inside. A surface roller is rotatably connected between the first bearing seats. The surface roller is sealed and connected to one of the ports of the insulation liquid channel through an insulation connecting pipe.

[0008] The output side tank is equipped with a second bearing seat that slides inside. At least one spring piston is fixedly mounted on the upper surface of the second bearing seat. The lower end of the lifting channel where the spring piston is located is connected to the heat preservation liquid channel. An embossing roller is rotatably connected between the second bearing seats.

[0009] Preferably, at least one pressure spring is fixedly provided on the upper surface of the first bearing seat, and the upper end of the pressure spring is fixed above the inside of the groove.

[0010] Preferably, the interior of the veneer roller stores a thermally expanding fluid, and a through hole of a specified diameter is opened at the axial position of the veneer roller. The interior of the front and rear sidewalls of the conveyor has a heat-insulating liquid channel on the inner wall of the capsule-shaped trough corresponding to the through hole of the veneer roller, and one end of the heat-insulating liquid channel is sealed and connected to the through hole of the veneer roller through a heat-insulating connecting pipe.

[0011] Preferably, the surface of the embossing roller is integrally provided with a wood grain pattern, and the connecting end of the embossing roller is connected to the drive motor with a universal joint.

[0012] Preferably, the upper side of the embossing roller is provided with a soft sliding contact brush, and the two ends of the brush are movably positioned above the output side of the conveyor in conjunction with the third bearing seat.

[0013] Preferably, the third bearing housing consists of an upper bearing portion and a lower mounting portion, and the upper bearing portion and the lower mounting portion are connected and defined by at least one movable spring rod.

[0014] Preferably, the rear end of the roller adhesive brush extends through the third bearing housing and is fixed to the output end of the movable electric actuator fixed on the surface of the third bearing housing.

[0015] Beneficial effects

[0016] This invention provides a co-extruded wood grain molding device. Compared with the prior art, it has the following advantages:

[0017] (1) The co-extruded wood-plastic texture shaping device, by setting up a synergistic structure of a veneer roller for storing thermal expansion fluid, a heat-insulating liquid channel and a spring piston, enables the device to dynamically adjust the pressure of the embossing roller in real time according to the temperature change of the co-extruded material. When the temperature of the co-extruded material fluctuates, the thermal expansion fluid expands and contracts with temperature changes, and transmits the pressure change through the heat-insulating liquid channel, which drives the spring piston to drive the embossing roller to rise and fall. This effectively solves the problem in the traditional process that the material softens or has poor fluidity due to temperature changes, which in turn causes the texture to be distorted, deformed or too shallow. It greatly improves the quality and stability of the texture of co-extruded wood-plastic products and ensures that the product can more realistically simulate the texture of natural wood in appearance.

[0018] (2) The co-extruded wood-plastic texture shaping device has a roller-adhesive brush set on the upper side of the embossing roller. The roller-adhesive brush is movably set at both ends with a third bearing seat connected and limited by a movable spring rod. The roller-adhesive brush is driven to move back and forth by a movable electric push rod. This ensures that the roller-adhesive brush can always adhere to the surface of the embossing roller during the operation of the embossing roller. When the embossing roller rotates, the roller-adhesive brush is driven to rotate. At the same time, the movable electric push rod controls its back and forth movement, which can effectively remove the co-extruded material debris and other impurities remaining on the surface of the embossing roller. This not only keeps the surface of the embossing roller clean, but also avoids impurities from affecting the clarity and integrity of the subsequent roller-pressed texture. Attached Figure Description

[0019] Figure 1 This is a three-dimensional perspective view of the present invention;

[0020] Figure 2 This is a structural disassembly diagram of this utility model;

[0021] Figure 3 This is a side view of the structure of this utility model.

[0022] In the diagram: 1. Compression molding structure; 11. Conveyor; 111. Insulation liquid channel; 112. Tank; 12. Surface-applying roller; 121. First bearing seat; 122. Pressure spring; 123. Insulation connecting pipe; 13. Embossing roller; 131. Second bearing seat; 132. Spring piston; 14. Adhesive roller brush; 141. Third bearing seat; 142. Movable spring rod; 143. Movable electric actuator. Detailed Implementation

[0023] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-3 A co-extruded wood-plastic texture shaping device includes a compression molding structure 1, which includes a conveyor 11. The front and rear wall panels of the conveyor 11 are symmetrically provided with capsule-shaped grooves 112 on the upper input and output sides of the conveyor belt.

[0025] The right input side tank 112 has a first bearing seat 121 slidably disposed inside. At least one pressure spring 122 is fixedly disposed on the upper surface of the first bearing seat 121, and the upper end of the pressure spring 122 is fixed above the inside of the tank 112, thereby limiting the lifting and lowering of the first bearing seat 121. A facing roller 12 is rotatably connected between the first bearing seats 121, and assists the facing roller 12 to always move and roll on the surface of the co-extruded material. The facing roller 12 stores thermal expansion fluid inside, and a through hole of a specified diameter is opened at the axial position of the facing roller 12. The inner wall of the front and rear side walls of the conveyor 11 has a heat preservation liquid channel 111 opened on the inner wall of the capsule-shaped tank 112 corresponding to the through hole of the facing roller 12. One end of the heat preservation liquid channel 111 is sealed and connected to the through hole of the facing roller 12 through a heat preservation connecting pipe 123.

[0026] A second bearing seat 131 is slidably disposed inside the left output side tank 112. At least one spring piston 132 is fixedly disposed on the upper surface of the second bearing seat 131, and the piston end of the spring piston 132 is slidably inserted into a convex lifting channel opened directly below the tank 112 inside the conveyor 11. The lower end of the lifting channel is connected to the heat preservation liquid channel 111. An embossing roller 13 is rotatably connected between the second bearing seats 131. The surface of the embossing roller 13 is integrally provided with a wood grain pattern, and the connecting end of the embossing roller 13 is equipped with... The universal joint is connected to the drive motor. The upper side of the embossing roller 13 is softly sliding contacted with a roller adhesive brush 14. The two ends of the roller adhesive brush 14 are movably disposed above the output side of the conveyor 11 in conjunction with the third bearing seat 141. The third bearing seat 141 consists of an upper bearing part and a lower mounting part, and the upper bearing part and the lower mounting part are connected and limited by at least one movable spring rod 142. The rear end of the roller adhesive brush 14 extends out of the third bearing seat 141 and is rotatably positioned with the output end of the movable electric push rod 143 fixed on the surface of the third bearing seat 141.

[0027] During operation, the drive motor is turned on, and the embossing roller 13 is rotated through the universal joint. The co-extruded material is conveyed to the conveyor 11. The embossing roller 13 presses the wood grain onto the material surface at a specified speed. The veneer roller 12 is in close contact with the co-extruded material under the action of the pressure spring 122. The thermal expansion fluid inside expands and contracts due to heat transfer. When the temperature increases, the co-extruded material conducts more heat. The expansion of the thermal expansion fluid pushes the spring piston 132 upward, which drives the second bearing seat 131 and the embossing roller 13 to move upward, reducing the pressure of the embossing roller 13 on the material and preventing the texture from twisting or deforming. During the embossing process, the roller adhesive brush 14 is attached to the upper side of the embossing roller 13 under the action of the third bearing seat 141. It is rotated by the friction of the roller. At the same time, the movable electric push rod 143 drives the roller adhesive brush 14 to move back and forth, removing debris and impurities from the surface of the embossing roller 13, keeping its surface clean, and ensuring the stability of the subsequent roller pressing texture.

[0028] In summary, by setting up a synergistic structure of the bonding roller 12 storing the thermal expansion fluid, the heat-insulating liquid channel 111, and the spring piston 132, the device can dynamically adjust the pressure of the embossing roller 13 in real time according to the temperature changes of the co-extruded material. When the temperature of the co-extruded material fluctuates, the thermal expansion fluid expands and contracts with temperature changes, transmitting the pressure change through the heat-insulating liquid channel 111, which drives the spring piston 132 to move the embossing roller 13 up and down. This effectively solves the problem in traditional processes where material softening or poor fluidity due to temperature changes leads to texture distortion, deformation, or excessive shallowness, greatly improving the quality and stability of the texture of co-extruded wood-plastic composite products and ensuring that the product can more realistically simulate the texture in appearance. Natural wood texture; By setting a roller-adhesive brush 14 on the upper side of the embossing roller 13, and the roller-adhesive brush 14 is movably set at both ends with a third bearing seat 141 connected and defined by a movable spring rod 142, and is driven to move back and forth by a movable electric push rod 143, the roller-adhesive brush 14 can always be attached to the surface of the embossing roller 13 during the operation of the embossing roller 13. When the embossing roller 13 rotates, the roller-adhesive brush 14 is driven to rotate, and at the same time, the movable electric push rod 143 controls its back and forth movement, so as to remove the co-extrusion material debris and other impurities remaining on the surface of the embossing roller 13 in a timely and effective manner. This not only keeps the surface of the embossing roller 13 clean, but also avoids impurities from affecting the clarity and integrity of the subsequent roller-pressed texture.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Working Principle: During operation, the drive motor is first turned on, which drives the embossing roller 13 to rotate via the universal joint. When the co-extruded material is conveyed to the conveyor 11, the embossing roller 13 will imprint the wood grain onto the surface of the co-extruded material at a specified speed. Under the action of the pressure spring 122, the veneer roller 12 is always tightly and softly pressed against the surface of the co-extruded material. The thermal expansion fluid stored inside the veneer roller 12 will expand and contract due to heat transfer. The expanded thermal expansion fluid will act on the lower end of the spring piston 132 through the heat preservation liquid channel 111. At this time, if the temperature increases, more heat will be conducted from the co-extruded material to the thermal expansion fluid through the veneer roller 12. Then, after the thermal expansion fluid expands, the thrust applied to the lower end of the spring piston 132 will be greater, and it will break through the spring piston. The tension of the plug 132 on the embossing roller 13 and the gravity of the embossing roller 13 itself push the spring piston 132 to move upward, thereby driving the second bearing seat 131 and the embossing roller 13 to move upward. This reduces the pressure of the embossing roller 13 on the co-extruded material and prevents the texture from twisting or deforming. At the same time, during the embossing process of the embossing roller 13 on the co-extruded material, the roller adhesive brush 14 will adhere to the upper side of the embossing roller 13 under the action of the third bearing seat 141 and rotate under the rotation friction of the embossing roller 13. During the rotation of the roller adhesive brush 14, the movable electric push rod 143 will drive the roller adhesive brush 14 to move back and forth and offset, thereby removing the co-extruded material debris and other impurities remaining on the surface of the embossing roller 13, keeping the surface of the embossing roller 13 clean, and ensuring the stable texture quality of subsequent roller pressing.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A co-extruded wood-plastic texture shaping device, comprising a compression molding structure (1), wherein the compression molding structure (1) includes a conveyor (11), characterized in that: The front and rear walls of the conveyor (11) are symmetrically provided with capsule-shaped grooves (112). The right input side groove (112) is slidably provided with a first bearing seat (121), and a face roller (12) is rotatably connected between the first bearing seats (121). The face roller (12) is sealed and connected to one of the ports of the heat preservation liquid channel (111) through the heat preservation connecting pipe (123). The left output side tank (112) has a second bearing seat (131) slidably disposed inside. At least one spring piston (132) is fixedly disposed on the upper surface of the second bearing seat (131), and the lower end of the lifting channel where the spring piston (132) is located is connected to the heat preservation liquid channel (111). The second bearing seats (131) are rotatably connected to each other.

2. The co-extruded wood-plastic texture shaping device according to claim 1, characterized in that: At least one pressure spring (122) is fixedly provided on the upper surface of the first bearing seat (121), and the upper end of the pressure spring (122) is fixed above the inside of the groove (112).

3. The co-extruded wood-plastic texture shaping device according to claim 1, characterized in that: The interior of the veneer roller (12) stores a thermally expanding fluid, and a through hole is provided at the axial position of the veneer roller (12). The interior of the front and rear side walls of the conveyor (11) is provided with a heat-insulating liquid channel (111) on the inner wall of the capsule-shaped tank (112) corresponding to the through hole of the veneer roller (12), and one end of the heat-insulating liquid channel (111) is sealed and connected to the through hole of the veneer roller (12) through a heat-insulating connecting pipe (123).

4. The co-extruded wood-plastic texture shaping device according to claim 1, characterized in that: The surface of the embossing roller (13) is integrally provided with wood grain pattern, and the connecting end of the embossing roller (13) is connected to the drive motor with a universal joint.

5. The co-extruded wood-plastic texture shaping device according to claim 4, characterized in that: The upper side of the embossing roller (13) is provided with a roller adhesive brush (14), and the two ends of the roller adhesive brush (14) are movably arranged above the output side of the conveyor (11) in conjunction with the third bearing seat (141).

6. The co-extruded wood-plastic texture shaping device according to claim 5, characterized in that: The third bearing housing (141) consists of an upper bearing portion and a lower mounting portion, and the upper bearing portion and the lower mounting portion are connected and defined by at least one movable spring rod (142).

7. The co-extruded wood-plastic texture shaping device according to claim 6, characterized in that: The rear end of the roller adhesive brush (14) extends through the third bearing housing (141) and is fixed to the output end of the movable electric actuator (143) fixed on the surface of the third bearing housing (141).

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