Wood-plastic forming mold capable of achieving rapid demolding
By combining modular demolding components with cooling airflow, the problem of unsmooth demolding in wood-plastic molding molds is solved, achieving a fast and non-destructive demolding effect.
Patent Information
- Application Number
- CN202422984291.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing wood-plastic molding molds have a large contact area between the die head and the extruded wood-plastic product during demolding, which leads to unsmooth demolding and can easily damage the product or the mold.
A combined demolding assembly is adopted, including a first demolding template and a second demolding module. Through the synergistic action of the lifting and pushing components, the contact area between the wood-plastic product and the mold head is reduced, and the low-temperature airflow sprayed by the cooling air pump is used to reduce adhesion, thereby achieving rapid demolding.
It enables rapid and smooth demolding of wood-plastic products, avoiding product damage and mold wear, and improving production efficiency.
Smart Images
Figure CN223618199U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wood-plastic molding mold technology, specifically relating to a wood-plastic molding mold for quick demolding. Background Technology
[0002] Wood-plastic molding molds are molds used to produce wood-plastic products using wood-plastic materials. Wood-plastic materials, also known as wood-plastic composites, are composite materials made by mixing polymer resins (such as high-density polyethylene or polypropylene) and wood fiber materials (such as wood chips, bamboo powder, rice husks, straw, etc.) in a certain proportion and adding special additives, and then processing them through high temperature, extrusion, molding, and other processes. There are many types of wood-plastic molding molds, one of which is extrusion molding molds, used to produce flooring, profiles, doors and windows, boards, sheets, and other products. Wood-plastic molding molds mainly include extrusion molds, molding mold bases, and extrusion mold heads.
[0003] When using wood-plastic composite (WPC) molding dies, the WPC material enters the extruder. The screw is heated to a molten state, and the molten material enters the WPC extrusion die under high pressure. The material first enters the extrusion die, then the forming die base, and finally is extruded from the forming die head. During extrusion, the temperature and pressure should be determined according to the different product types to avoid product deformation or quality degradation. In this operation, one end of the formed WPC product remains inside the forming die head. Due to the high temperature of the extruded WPC product, manual demolding is inconvenient. Demolding is usually done by clamping, but the large contact area between the WPC product and the extrusion die head prevents smooth demolding. Forced demolding may cause product damage, die wear, or deformation. Furthermore, some WPC molding dies lack a design that reduces the contact area of the extruded WPC product for smooth demolding.
[0004] Existing plastic molding molds have the problem that the die head does not have a design to reduce the contact area of the extruded wood-plastic product to facilitate smooth demolding. To address this, this application proposes a wood-plastic molding mold for rapid demolding. Utility Model Content
[0005] The purpose of this invention is to provide a wood-plastic molding die for rapid demolding, in order to solve the problem mentioned in the background art that the die head does not have a design to reduce the contact area of the extruded wood-plastic product to facilitate smooth demolding.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wood-plastic molding die for rapid demolding, comprising...
[0007] The wood-plastic molding die assembly for extruded wood-plastic product A includes an extrusion die, a molding die base fixed to the extrusion die by bolts, and an discharge die head fixed to the molding die base by bolts;
[0008] The demolding assembly includes a demolding head fixed to the discharge die head by bolts, a first demolding template and a second demolding module combined with the demolding head, wherein an air vent is provided on the inner side wall of the first demolding template and a demolding opening is provided inside the demolding head;
[0009] The lifting assembly includes a stabilizing plate mounted on the demolding head and a lifting cylinder mounted between the stabilizing plate and the second demolding head.
[0010] The pushing assembly includes a pushing cylinder mounted on the demolding head, a pushing plate connected to the upper slide of the pushing cylinder, and a cooling air pump mounted on the pushing plate.
[0011] Preferably, the stabilizing plate has a "U" shaped structure, the outer surface of the second detachment module matches the inner sidewall of the stabilizing plate, and a lifting plate penetrating the stabilizing plate is provided on one side surface of the second detachment module.
[0012] Preferably, a sensor corresponding to the lifting plate is provided on the side of one end of the stabilizing plate.
[0013] Preferably, the interior of the first demolding template is provided with an air storage cavity that communicates with the air outlet.
[0014] Preferably, the push plate is provided with an air inlet a, the air inlet end of the cooling air pump is connected to the air inlet a, and the air storage chamber is connected to the air inlet a.
[0015] Preferably, the inner sidewall of the first demolding template is provided with a connected airflow channel b1 and an airflow channel b2, and the air outlet is connected to the airflow channel b1.
[0016] Preferably, the inner wall of the first demolding template matches the demolding opening, and the inner wall of the second demolding template matches the demolding opening.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] In this invention, the discharge die head is designed to reduce the contact area of the extruded wood-plastic product to facilitate smooth demolding. The first demolding template and the second demolding module are combined with the demolding head. Under the coordinated action of the lifting component and the pushing component, the first demolding template and the second demolding module move outward, which can reduce the contact area of the outer side of the wood-plastic product A and achieve the effect of rapid demolding. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section B;
[0021] Figure 3This is a side view of the demolding head of this utility model.
[0022] Figure 4 For the present utility model Figure 3 A side view of the first template removal structure in the process;
[0023] Figure 5 This is a side view of the discharge die head of this utility model.
[0024] Figure 6 This is a cross-sectional view of the demolding head of this utility model;
[0025] In the diagram: 11. Extrusion die; 12. Forming die base; 13. Discharge die head; 21. Demolding head; 22. First demolding plate; 23. Second demolding plate; 31. Stabilizing plate; 32. Lifting cylinder; 33. Sensor; 41. Pushing cylinder; 42. Pushing plate; 43. Cooling air pump; 211. Demolding port; 221. Air outlet; 222. Air storage chamber; 231. Lifting plate. Detailed Implementation
[0026] 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. Example
[0027] Please see Figures 1 to 6This utility model provides a technical solution: a wood-plastic molding die for rapid demolding, comprising a wood-plastic molding die assembly for extruding wood-plastic product A, including an extrusion die 11, a molding die base 12 fixed to the extrusion die 11 by bolts, and a discharge die head 13 fixed to the molding die base 12 by bolts. The structure and principle of the wood-plastic molding die assembly are conventional technologies and will not be described in detail in this application; the demolding assembly includes a demolding head 21 fixed to the discharge die head 13 by bolts, a first demolding template 22 and a second demolding template 23 combined with the demolding head 21, and the inner wall of the first demolding template 22... The demolding head 21 has an air outlet 221 and a demolding opening 211 inside. The demolding opening 211 is aligned with the discharge die head 13. The wood-plastic product A extruded from the discharge die head 13 passes through the demolding opening 211 of the demolding head 21, with one end of the wood-plastic product A placed inside the demolding opening 211. The first demolding template 22 and the second demolding module 23 are combined with the demolding head 21. The first demolding template 22 and the second demolding module 23 can move outward to reduce the contact area of the wood-plastic product A on the outside, which is conducive to rapid demolding. The lifting assembly includes a stabilizing plate 31 installed on the demolding head 21 and a lifting mechanism installed on the stabilizing plate. The lifting cylinder 32 between the demolding head 21 and the second demolding module 23, and the stabilizing plate 31 are connected to the demolding head 21 and the lifting cylinder 32 by screws. The lifting cylinder 32 is activated and changes from an extended state to a shortened state. The lifting cylinder 32 drives the second demolding module 23 to move vertically, and the second demolding module 23 separates from the wood-plastic product A from the contact state, reducing the contact area; the pushing assembly includes a pushing cylinder 41 mounted on the demolding head 21, a pushing plate 42 connected to the upper slide of the pushing cylinder 41, and a cooling air pump 43 mounted on the pushing plate 42. The pushing cylinder 41 and the demolding head 21 are connected to the second demolding module 23. The head 21 and the push plate 42 are fixed with screws. The push plate 42 is fixed with the first demolding template 22 with screws. The push cylinder 41 is started, which drives the first demolding template 22 to move. The first demolding template 22 and the wood-plastic product A move outward, reducing the contact area of the wood-plastic product A and allowing it to detach from the inside of the demolding head 21 for quick demolding. The cooling air pump 43 is started to inject low-temperature airflow. The low-temperature airflow enters the inside of the first demolding template 22 and is then sprayed on the surface of the wood-plastic product A to achieve the effect of cooling the wood-plastic product A, reducing the adhesion of the wood-plastic product A, and facilitating demolding.
[0028] In this embodiment, the stabilizing plate 31 has a "U" shaped structure. The outer surface of the second release module 23 matches the inner sidewall of the stabilizing plate 31. The second release module 23 is constrained by the stabilizing plate 31. A lifting plate 231 penetrating the stabilizing plate 31 is provided on one side surface of the second release module 23. The stabilizing plate 31 is provided with a sliding groove for the lifting plate 231 to slide. The lifting plate 231 is slidably connected to the stabilizing plate 31. The lifting plate 231 moves in the same direction as the second release module 23. A sensor 33 corresponding to the lifting plate 231 is provided on the side of one end of the stabilizing plate 31. The sensor 33 is connected to the stabilizing plate 31 by screws. When the lifting plate 231 is raised to a suitable position, the sensor 33 senses the change in the position of the lifting plate 231. The sensor 33 of the conventional equipment sends a signal to push the cylinder 41 to start adjustment. When the cylinder 41 receives the corresponding signal, it starts.
[0029] In this embodiment, the first demolding template 22 has an air storage chamber 222 connected to the air outlet 221 inside. The push plate 42 has an air inlet a. The air inlet end of the cooling air pump 43 is connected to the air inlet a. The air storage chamber 222 is connected to the air inlet a. The inner side wall of the first demolding template 22 has a connected airflow channel b1 and airflow channel b2. The air outlet 221 is connected to the airflow channel b1. When the cooling air pump 43 is started, a low-temperature airflow is injected into the push plate 42. The low-temperature airflow enters the interior of the first demolding template 22. Then, the low-temperature airflow is sprayed out from the air outlet 221. The low-temperature airflow is sprayed onto the surface of the wood-plastic product A. Then, the low-temperature gas flows out from the airflow channel b1 and airflow channel b2, achieving the effect of cooling the wood-plastic product A, reducing the adhesion of the wood-plastic product A, and facilitating demolding.
[0030] In this embodiment, the inner wall of the first demolding template 22 matches the demolding opening 211, and the inner wall of the second demolding module 23 matches the demolding opening 211. The extruded wood-plastic product A is located inside the demolding head 21, and the first demolding template 22 and the second demolding module 23 match the wood-plastic product A.
[0031] Working principle and usage process of this utility model:
[0032] When wood-plastic product A is extruded, one end of wood-plastic product A is placed inside the demolding opening 211;
[0033] Within the preset program, the lifting cylinder 32 is activated and changes from an extended state to a shortened state. The lifting cylinder 32 drives the second release module 23 to move vertically, and the second release module 23 separates from the wood-plastic product A from the contact state, reducing the contact area.
[0034] The cooling air pump 43 is started, and low-temperature airflow is injected into the interior of the push plate 42. The low-temperature airflow enters the interior of the first demolding plate 22, and then the low-temperature airflow is sprayed out from the air outlet 221. The low-temperature airflow is sprayed onto the surface of the wood-plastic product A, and then the low-temperature gas flows out from the airflow channel b1 and airflow channel b2, achieving the effect of cooling the wood-plastic product A, reducing the adhesion of the wood-plastic product A, and facilitating demolding.
[0035] When the lifting plate 231 is raised to a suitable position, the sensor 33 senses the change in the position of the lifting plate 231. The sensor 33 of the conventional equipment sends a signal to push the cylinder 41 to start adjustment. When the cylinder 41 receives the corresponding signal, it starts.
[0036] The cylinder 41 is activated, which drives the push plate 42 and the first demolding plate 22 to move. The first demolding plate 22 and the wood-plastic product A move outward, reducing the contact area of the wood-plastic product A and allowing it to detach from the demolding head 21 for quick demolding.
[0037] In summary: The discharge die head 13 has a design to reduce the contact area of the extruded wood-plastic product to facilitate smooth demolding. The first demolding template 22 and the second demolding module 23 are combined with the demolding head 21. Under the coordinated action of the lifting component and the pushing component, the first demolding template 22 and the second demolding module 23 move outward, which can reduce the contact area of the outer side of the wood-plastic product A and achieve the effect of rapid demolding.
[0038] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 wood-plastic molding die for rapid demolding, characterized in that: include The wood-plastic molding die assembly for extruded wood-plastic product A includes an extrusion die (11), a molding die base (12) fixed to the extrusion die (11) by bolts, and an discharge die head (13) fixed to the molding die base (12) by bolts. The demolding assembly includes a demolding head (21) fixed to the discharge die head (13) by bolts, a first demolding template (22) combined with the demolding head (21), and a second demolding template (23). An air vent (221) is provided on the inner side wall of the first demolding template (22), and a demolding port (211) is provided inside the demolding head (21). The lifting assembly includes a stabilizing plate (31) mounted on the demolding head (21) and a lifting cylinder (32) mounted between the stabilizing plate (31) and the second demolding module (23). The pushing assembly includes a pushing cylinder (41) mounted on the demolding head (21), a pushing plate (42) connected to the slide of the pushing cylinder (41), and a cooling air pump (43) mounted on the pushing plate (42).
2. The wood-plastic molding die for rapid demolding according to claim 1, characterized in that: The stabilizing plate (31) has a "U" shaped structure. The outer surface of the second detachment module (23) matches the inner wall of the stabilizing plate (31). A lifting plate (231) penetrating the stabilizing plate (31) is provided on one side surface of the second detachment module (23).
3. The wood-plastic molding die for rapid demolding according to claim 2, characterized in that: A sensor (33) corresponding to the lifting plate (231) is provided on the side of one end of the stabilizing plate (31).
4. The wood-plastic molding die for rapid demolding according to claim 1, characterized in that: The first stripping template (22) has an internal air storage chamber (222) that communicates with the air outlet (221).
5. A wood-plastic molding die for rapid demolding according to claim 4, characterized in that: The push plate (42) is provided with an air inlet a, the air inlet end of the cooling air pump (43) is connected to the air inlet a, and the air storage chamber (222) is connected to the air inlet a.
6. A wood-plastic molding die for rapid demolding according to claim 5, characterized in that: The inner sidewall of the first demolding template (22) is provided with a connected airflow channel b1 and an airflow channel b2, and the air outlet (221) is connected to the airflow channel b1.
7. A wood-plastic molding die for rapid demolding according to claim 1, characterized in that: The inner wall of the first demolding template (22) matches the demolding opening (211), and the inner wall of the second demolding template (23) matches the demolding opening (211).