Plastic heat insulation structure of vacuum forming machine
By designing up and downward movable cooling blocks and back-shaped pads in the vacuum forming machine to cool and cool the plastic, the problem of plastic stretching and thinning and white edges during heating is solved, and efficient forming of materials and reducing production costs are achieved.
Patent Information
- Application Number
- CN202421872798.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the plastic molding process of existing vacuum forming machines, plastics are prone to stretching, thinning or whitening when they are heated, resulting in waste of materials and increased production costs.
A plastic insulation structure of a vacuum forming machine is designed to cool the plastic through up and down cooling blocks and back-shaped pads to avoid the plastic's extension and thinning and white edges when heating.
It effectively avoids the extension, thinning and white edges of plastics when heating, reduces material waste and production costs, and improves the sealing properties of plastics.
Smart Images
Figure CN222875293U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum forming machine equipment, in particular to a plastic heat insulation structure of a vacuum forming machine. Background Art
[0002] In the field of plastic processing, vacuum forming machine is a key equipment widely used in the manufacture of various plastic products. It realizes the three-dimensional shape of the product through the steps of heating, softening and vacuum adsorption forming of thermoplastic plastic sheets.
[0003] When the existing vacuum forming machine is in use, the plastic sheet is pressed by the pressing structure and then heated and softened by the heating component. The vacuum equipment is further evacuated to make the plastic material fit the mold. Since the plastic material is softened by the heating component, the pressed position is prone to stretching, thinning, or whitening during molding, resulting in waste of plastic material and increased production costs. Therefore, a plastic heat insulation structure of a vacuum forming machine is proposed to solve this problem. Utility Model Content
[0004] In view of this, the utility model provides a plastic heat insulation structure for a vacuum forming machine, which can cool down the plastic material in the incoming direction through the cooling block that moves up and down in cooperation with the U-shaped pad, thereby preventing the plastic material from being softened, stretched, thinned, and having white edges in this area when being heated.
[0005] In order to solve the above technical problems, the utility model provides a plastic insulation structure of a vacuum forming machine, including a U-shaped base, a clamping structure movably arranged above the U-shaped base, and a U-shaped pad matching the U-shaped base. The clamping structure includes a cooling block movably arranged up and down corresponding to the U-shaped pad, and a pressing frame is connected to the lower part of the cooling block, and the distance from the bottom of the cooling block to the bottom of the pressing frame is equal to the distance from the upper base surface of the U-shaped pad to the upper base surface of the U-shaped base.
[0006] The cooling block comprises a main body, a material pressing frame is connected to the lower part of the main body, a first cooling circulation pipeline is embedded in the main body, and connecting blocks are arranged on the base surfaces on both sides of the main body.
[0007] A guide rod is fixedly provided on the U-shaped base, a guide sliding hole matching the guide rod is provided on the connecting block, a tension spring is sleeved on the outer periphery of the guide rod between the U-shaped base and the connecting block, and a limiting protrusion is fixedly provided on the upper end surface of the guide rod.
[0008] A second cooling circulation pipeline is embedded in the U-shaped cushion block.
[0009] A thickened cushion block is also arranged on the upper base surface of the pressing frame away from the main body, and the upper base surface of the thickened cushion block is arranged flush with the upper base surface of the main body.
[0010] The main body and the U-shaped pad are both made of copper.
[0011] The beneficial effects of the above technical solution of the utility model are as follows:
[0012] 1. The cooling block that moves up and down cooperates with the U-shaped pad to cool down the plastic material in the incoming direction, thereby preventing the plastic material from being softened, stretched, thinned, and having white edges in this area when being heated.
[0013] 2. The first cooling circulation pipeline and the second cooling circulation pipeline are both connected to the external cooling circulation equipment, and the U-shaped base is fixed to the processing station of the vacuum forming machine. The plastic material further passes through the gap between the cooling block and the U-shaped pad, that is, from one end of the cooling block to the other end. The lifting and lowering heating structure is set corresponding to the U-shaped pad. When it presses down to heat the plastic material, its frame first contacts with the main body of the cooling block and the thickened pad, so that the main body and the pressing frame are pressed down, thereby pressing the plastic material, and then the vacuum equipment is started to vacuum, so that the plastic material and the mold are fitted together for forming.
[0014] 3. The main body of the cooling block and the U-shaped pad are both made of copper, which has good thermal conductivity. The heat can be taken away by the first cooling circulation pipeline and the second cooling circulation pipeline, thereby preventing the plastic material in this area from being stretched and thinned due to heat and causing white edges.
[0015] 4. The upper base surface of the thickened pad is flush with the upper base surface of the main body, so that when the force is pressed downward, the lower pressing frame can be evenly stressed, so that the plastic material has better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the main structure of the plastic heat insulation structure of the vacuum forming machine of the utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the utility model from another perspective;
[0018] Figure 3 It is an enlarged view of structure A of the present utility model.
[0019] Explanation of the reference numerals: 1. U-shaped base; 11. Guide rod; 12. Tension spring; 13. Limiting protrusion; 2. Clamping structure; 21. Cooling block; 211. Main body; 212. First cooling circulation pipeline; 213. Connecting block; 2131. Guide slide hole; 22. Pressing frame; 221. Thickened pad; 3. U-shaped pad; 31. Second cooling circulation pipeline. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0021] like Figure 1-3 As shown:
[0022] The present embodiment provides a plastic heat-insulating structure of a vacuum forming machine, comprising a U-shaped base 1, a clamping structure 2 movably arranged up and down above the U-shaped base 1, a U-shaped pad 3 matching the U-shaped base 1 is also provided on the U-shaped base 1, the clamping structure 2 comprises a cooling block 21 movably arranged up and down corresponding to the U-shaped pad 3, a pressing frame 22 is connected to the lower part of the cooling block 21, and the distance from the bottom of the cooling block 21 to the bottom of the pressing frame 22 is equal to the distance from the upper base surface of the U-shaped pad 3 to the upper base surface of the U-shaped base 1.
[0023] When in use, the U-shaped base 1 is fixed to the processing station of the vacuum forming machine, and the plastic material passes through the gap between the cooling block 21 and the U-shaped pad 3, that is, from one end of the cooling block 21 to the other end. The lifting and lowering heating structure is arranged corresponding to the U-shaped pad 3. When it is pressed down to heat the plastic material, its frame first contacts the main body 211 of the cooling block 21 and the thickened pad 221, so that the main body 211 and the pressing frame 22 are pressed down, thereby pressing the plastic material, and then the vacuum equipment is started to vacuum, so that the plastic material and the mold are fitted together for forming.
[0024] like Figure 1 As shown, the cooling block 21 includes a main body 211, a pressing frame 22 is connected to the lower part of the main body 211, a first cooling circulation pipeline 212 is embedded in the main body 211, connecting blocks 213 are provided on the base surfaces on both sides of the main body 211, a guide rod 11 is also fixedly provided on the U-shaped base 1, a guide slide hole 2131 matching the guide rod 11 is provided on the connecting block 213, a tension spring 12 is sleeved on the outer periphery of the guide rod 11 between the U-shaped base 1 and the connecting block 213, after the plastic material processing is completed, the heating equipment is reset, and the tension spring 12 drives the connecting block 213 to make the main body 211 and the pressing frame 22 return to the initial height, a limiting protrusion 13 is also fixedly provided on the upper end surface of the guide rod 11, and a second cooling circulation pipeline 31 is embedded in the U-shaped pad 3.
[0025] like Figure 1 , 3As shown, a thickened pad 221 is provided on the upper base surface of the pressing frame 22 away from the main body 211, and the upper base surface of the thickened pad 221 is arranged flush with the upper base surface of the main body 211, so that when the pressing frame 22 is pressed downward, the lower part can be evenly stressed, so that the plastic material has better sealing performance.
[0026] like Figure 1 , 2 As shown in FIG. 3 , the main body 211 and the U-shaped pad 3 are both made of copper material, which has good thermal conductivity, so that the heat of the copper material can be quickly taken away by the first cooling circulation pipeline 212 and the second cooling circulation pipeline 31 embedded inside, thereby ensuring the usable performance of the plastic material in this area.
[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0028] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. The plastic heat insulation structure of the vacuum forming machine is characterized by: The invention comprises a U-shaped base (1), a clamping structure (2) movably arranged above the U-shaped base (1), the U-shaped base (1) is also provided with a U-shaped cushion block (3) matching with it, the clamping structure (2) comprises a cooling block (21) movably arranged above and below the U-shaped cushion block (3), the lower part of the cooling block (21) is connected to a material pressing frame (22), and the distance between the bottom of the cooling block (21) and the bottom of the material pressing frame (22) is equal to the distance between the upper base surface of the U-shaped cushion block (3) and the upper base surface of the U-shaped base (1).
2. The plastic heat insulation structure of the vacuum forming machine as claimed in claim 1, characterized in that: The cooling block (21) comprises a main body (211), the pressing frame (22) is connected to the lower part of the main body (211), a first cooling circulation pipeline (212) is embedded in the main body (211), and connecting blocks (213) are provided on the base surfaces on both sides of the main body (211).
3. The plastic heat insulation structure of the vacuum forming machine as claimed in claim 2, characterized in that: A guide rod (11) is also fixedly provided on the U-shaped base (1), a guide sliding hole (2131) matched with the guide rod (11) is provided on the connecting block (213), a tension spring (12) is sleeved on the outer periphery of the guide rod (11) between the U-shaped base (1) and the connecting block (213), and a limiting protrusion (13) is also fixedly provided on the upper end surface of the guide rod (11).
4. The plastic heat insulation structure of the vacuum forming machine as claimed in claim 3, characterized in that: The U-shaped cushion block (3) is embedded with a second cooling circulation pipeline (31).
5. The plastic heat insulation structure of the vacuum forming machine as claimed in claim 4, characterized in that: A thickened cushion block (221) is also provided on the upper base surface of the pressing frame (22) at a side away from the main body (211), and the upper base surface of the thickened cushion block (221) is arranged flush with the upper base surface of the main body (211).
6. The plastic heat insulation structure of the vacuum forming machine as claimed in claim 5, characterized in that: The main body (211) and the U-shaped pad (3) are both made of copper.