Extrusion forming device

Abstract

The utility model provides an extrusion forming device and relates to the technical field of forming dies, the extrusion forming device comprises a rack, a forming die, a feeding system and an extrusion machine head, the forming die is installed on the rack, a forming cavity is formed in the forming die, the feeding system is provided with a feeding structure and a multi-stage heating structure, the feeding structure is installed on the rack, and the multi-stage heating structure is installed on the rack. The multi-stage heating structure is installed on the machine frame, connected with the forming mold and used for feeding materials to the multi-stage heating structure, the multi-stage heating structure is installed on the machine frame, connected with the forming mold and used for conveying materials heated into a fluid state into the forming cavity, and the extrusion machine head is installed on the machine frame, located above the forming mold and used for being combined with the forming mold and extruding and forming products. The multi-stage extrusion forming device is simple in structure and reasonable in design, uniform and effective heating is achieved by adopting multi-stage heating and increasing the heating temperature stage by stage, materials are fully heated into fluid, and better extrusion forming is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of forming dies, and in particular to an extrusion forming device. Background Art

[0002] Extrusion molding is a widely used polymer processing technology. For example, rubber-coated connectors are formed by squeezing heated, fluid materials around the connector's sides using an extrusion molding device. Currently used extrusion molding devices typically consist of the following key components: a frame, a feeding system, an extrusion die, and a molding die. These components work together to complete the extrusion molding process.

[0003] However, most existing extrusion molding devices use a single-shot material heating method, which causes uneven heating during the material heating process. Due to the uneven heating, the quality and performance of the product after extrusion molding vary, affecting the product yield and consistency. Especially when processing rubber-coated joints with complex shapes and sizes, the problem of uneven heating is more prominent, making the product unable to meet the high-precision and high-quality production requirements.

[0004] In view of this, the present application aims to provide an extrusion molding device to better solve the above technical problems. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide an extrusion molding device, which can solve the technical problem of uniform heating of materials in the extrusion molding device.

[0006] An embodiment of the present application provides an extrusion molding device, including a frame, a molding die, a feeding system and an extrusion head, wherein the molding die is installed on the frame, and the molding die has a molding cavity. The feeding system is provided with a feeding structure and a multi-stage heating structure. The feeding structure is installed on the frame for feeding material to the multi-stage heating structure. The multi-stage heating structure is installed on the frame and connected to the molding die for conveying material heated into a fluid state into the molding cavity. The extrusion head is installed on the frame and located above the molding die for closing the mold with the molding die to extrude and mold a product.

[0007] Furthermore, the multi-stage heating structure includes a first heating chamber, a second heating chamber and a third heating chamber arranged in sequence from top to bottom, and the heating temperatures of the first heating chamber, the second heating chamber and the third heating chamber are set to increase in sequence from top to bottom.

[0008] Furthermore, the first heating chamber, the second heating chamber and the third heating chamber are respectively provided with a temperature sensing structure for sensing temperature.

[0009] Furthermore, the first heating chamber, the second heating chamber and the third heating chamber respectively adopt streamlined cavity structures to reduce the flow resistance of the heated material.

[0010] Furthermore, the first heating chamber is provided with a stirring mechanism, and the stirring mechanism is driven by a variable frequency motor.

[0011] Furthermore, the feeding structure is provided with a hopper, the bottom end of the hopper is connected with the first heating chamber through a chute, and a control valve is provided at the bottom end of the hopper.

[0012] Furthermore, a feeding pipe is provided at the bottom end of the third heating chamber, and the extrusion head is provided with an avoidance groove for the feeding pipe to pass through.

[0013] Furthermore, a first lifting movable platform and a second lifting movable platform are provided on the frame, the feeding system is installed on the first lifting movable platform, and the extrusion head is installed on the second lifting movable platform.

[0014] Furthermore, a cylinder push rod and a cylinder blocking plate are provided on opposite sides of the molding cavity.

[0015] Beneficial effects of the utility model:

[0016] The extrusion molding device provided by the utility model includes a frame, a molding die, a feeding system and an extrusion head. The molding die is installed on the frame, and a molding cavity is provided on the molding die. The feeding system is provided with a feeding structure and a multi-stage heating structure. The feeding structure is installed on the frame for feeding the multi-stage heating structure. The multi-stage heating structure is installed on the frame and connected to the molding die for conveying the material heated into a fluid state into the molding cavity. The extrusion head is installed on the frame and is located above the molding die for closing the mold with the molding die to extrude and mold the product. The utility model has a simple structure and a reasonable design. By adopting multi-stage heating and gradually increasing the heating temperature, uniform and effective heating can be achieved, so that the material is fully heated into a fluid, thereby achieving better extrusion molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of some embodiments of the present utility model;

[0019] Figure 2 This is a schematic diagram of the arrangement of the molding cavity, the cylinder push rod, and the cylinder blocking plate in some embodiments of the present invention.

[0020] The reference numerals are:

[0021] Frame 1, forming mold 2, forming cavity 21, cylinder push rod 22, cylinder blocking plate 23, feeding system 3, feeding structure 31, hopper 311, chute 312, control valve 313, multi-stage heating structure 32, first heating cavity 321, second heating cavity 322, third heating cavity 323, stirring mechanism 324, feeding pipe 325, extrusion head 4. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0027] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] See also Figure 1-Figure 2 As shown, the extrusion molding device described in this embodiment includes a frame 1, a molding die 2, a feeding system 3 and an extrusion head 4. The molding die 2 is installed on the frame 1. The molding die 2 has a molding cavity 21. The feeding system 3 is provided with a feeding structure 31 and a multi-stage heating structure 32. The feeding structure 31 is installed on the frame 1 for feeding the multi-stage heating structure 32. The multi-stage heating structure 32 is installed on the frame 1 and connected to the molding die 2 for conveying the material heated into a fluid state into the molding cavity 21. The extrusion head 4 is installed on the frame 1 and is located above the molding die 2. It is used to close the mold with the molding die 2 to extrude and mold the product.

[0029] This embodiment has a simple structure and a reasonable design. By adopting multi-stage heating and gradually increasing the heating temperature, uniform and effective heating is achieved, so that the material is fully heated into a fluid, thereby achieving better extrusion molding.

[0030] Based on the above embodiment, the multi-stage heating structure 32 includes a first heating chamber 321, a second heating chamber 322 and a third heating chamber 323 arranged in sequence from top to bottom, and the heating temperatures of the first heating chamber 321, the second heating chamber 322 and the third heating chamber 323 are set to increase in sequence from top to bottom.

[0031] In this embodiment, it is specifically shown that heating is performed by setting a three-stage heating structure with gradually increasing temperature to achieve a more uniform and sufficient material heating effect. The first heating chamber 321, the second heating chamber 322 and the third heating chamber 323 can respectively adopt electric heating plates in the prior art for heating, and in order to improve durability, the inner wall of the heating chamber is made of high-temperature resistant and corrosion-resistant materials.

[0032] In some embodiments, the first heating chamber 321 , the second heating chamber 322 , and the third heating chamber 323 are respectively provided with a temperature sensing structure for sensing temperature.

[0033] In this embodiment, a temperature sensing structure is provided to detect the temperature during the heating process, thereby facilitating temperature adjustment during the multi-stage heating process and achieving a more adequate heating effect.

[0034] In some embodiments, the first heating chamber 321 , the second heating chamber 322 , and the third heating chamber 323 each adopt a streamlined cavity structure to reduce flow resistance of the heated material.

[0035] Specifically, the first heating chamber 321 is provided with a stirring mechanism 324 , and the stirring mechanism 324 is driven by a variable frequency motor.

[0036] In this embodiment, the heating chamber with a streamlined cavity structure can improve the smoothness of the flow of the material after heating, and the setting of the stirring mechanism 324 can stir the material to ensure a more uniform and sufficient heating process.

[0037] In some embodiments, the feeding structure 31 is provided with a hopper 311 , the bottom end of the hopper 311 is connected to the first heating chamber 321 through a chute 312 , and a control valve 313 is provided at the bottom end of the hopper 311 .

[0038] In this embodiment, by providing a hopper 311 and a control valve 313 at the bottom of the hopper 311, intermittent feeding can be achieved, thereby facilitating feeding control based on extrusion molding needs.

[0039] In some embodiments, a feeding pipe 325 is provided at the bottom end of the third heating chamber 323 , and the extrusion head 4 is provided with an avoidance groove for the feeding pipe 325 to pass through.

[0040] In this embodiment, by providing a feed pipe 325 and an avoidance groove, it is convenient to pass the feed pipe 325 through the avoidance groove to feed the heated fluid material into the molding cavity 21. In order to control the feeding amount, a high-temperature resistant metering electric control valve can be installed on the feed pipe 325 to realize the control of the feeding amount of the fluid material.

[0041] In some embodiments, a first lifting platform and a second lifting platform are provided on the frame 1 , the feeding system 3 is installed on the first lifting platform, and the extrusion head 4 is installed on the second lifting platform.

[0042] In this embodiment, the provision of two lifting movable platforms facilitates the transportation of heated materials by lifting, and after the heated materials are fed into the molding cavity 21, the extrusion head 4 and the molding mold 2 are driven to close the mold by lifting, and the fluid material is squeezed into the rubber-coated joint to realize product extrusion molding.

[0043] In some embodiments, a cylinder push rod 22 and a cylinder blocking plate 23 are provided on opposite sides of the molding cavity 21 .

[0044] In this embodiment, by arranging a cylinder push rod 22 and a cylinder blocking plate 23 on opposite sides of the molding cavity 21, and then cooperating with the extrusion head 4, the fluid material can be squeezed into the side of the joint to achieve better extrusion molding.

[0045] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An extrusion molding device, characterized in that: It includes a frame, a forming mold, a feeding system and an extrusion head. The forming mold is installed on the frame. The forming mold has a forming cavity. The feeding system is provided with a feeding structure and a multi-stage heating structure. The feeding structure is installed on the frame for feeding the multi-stage heating structure. The multi-stage heating structure is installed on the frame and connected to the forming mold for conveying the material heated into a fluid state into the forming cavity. The extrusion head is installed on the frame and is located above the forming mold. It is used to close the mold with the forming mold to extrude and form the product.

2. The extrusion molding device according to claim 1, characterized in that: The multi-stage heating structure includes a first heating chamber, a second heating chamber and a third heating chamber arranged in sequence from top to bottom, and the heating temperatures of the first heating chamber, the second heating chamber and the third heating chamber are set to increase in sequence from top to bottom.

3. The extrusion molding device according to claim 2, characterized in that: The first heating chamber, the second heating chamber and the third heating chamber are respectively provided with a temperature sensing structure for sensing temperature.

4. The extrusion molding device according to claim 2, characterized in that: The first heating chamber, the second heating chamber and the third heating chamber respectively adopt streamlined cavity structures to reduce the flow resistance of the heated material.

5. The extrusion molding device according to claim 2, characterized in that: The first heating chamber is provided with a stirring mechanism, and the stirring mechanism is driven by a variable frequency motor.

6. The extrusion molding device according to claim 2, characterized in that: The feeding structure is provided with a hopper, the bottom end of the hopper is communicated with the first heating chamber through a chute, and a control valve is provided at the bottom end of the hopper.

7. The extrusion molding device according to claim 2, characterized in that: A feeding pipe is provided at the bottom end of the third heating chamber, and an avoidance groove is provided on the extruder head for the feeding pipe to pass through.

8. The extrusion molding device according to claim 2, characterized in that: The frame is provided with a first lifting movable platform and a second lifting movable platform, the feeding system is installed on the first lifting movable platform, and the extrusion head is installed on the second lifting movable platform.

9. The extrusion molding device according to claim 1, characterized in that: A cylinder push rod and a cylinder blocking plate are provided on opposite sides of the molding cavity.

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