Local rapid plastic suction equipment for plastic products

Abstract

The utility model discloses a kind of local rapid blistering equipment of plastic product, belong to plastic product processing technical field, including blistering mould, the support plate is fixedly connected with symmetry above the blistering mould, the mounting plate is fixedly connected with above the support plate, the overall suction cup is fixedly connected with above the blistering mould, the local suction cup is fixedly connected with inside the overall suction cup above the blistering mould, the vacuum adsorption component that is communicated with inside the overall suction cup and the local suction cup is arranged outside the blistering mould, the vacuum adsorption component can suck out air in inside the overall suction cup and the local suction cup, the compaction heating assembly for compacting plastic plate and heating local position of plastic plate is arranged in one side of the mounting plate, the utility model solves the problem that existing blistering equipment cannot heat locally plastic plate, in turn leading to equipment energy consumption, efficiency is low, forming precision is insufficient and material waste.

Description

Technical Field

[0001] This utility model belongs to the field of plastic product processing technology, and in particular relates to a local rapid vacuum forming device for plastic products. Background Technology

[0002] Currently, in the processing of thin plastic sheets for non-metallic dining tables, such as those for concealed dining tables in automobiles, high-speed trains, and airplane seats, a vacuum forming process is commonly used to shape the plastic sheets. This process involves placing the entire plastic sheet inside a vacuum forming machine, heating it to soften it, and then using vacuum suction to adhere the entire plastic sheet to the corresponding mold. After cooling and setting, the final shape is achieved. The principle is to utilize the plasticity of the plastic after it has softened from heat, and to use external force (vacuum suction) to deform it and adhere it to the mold, thereby obtaining the desired shape.

[0003] The following problems are still commonly found in the actual use of existing thermoforming equipment:

[0004] 1. High energy consumption: Because the entire plastic sheet needs to be heated, but only a local part needs to be formed, a lot of energy is wasted.

[0005] 2. Low efficiency: The overall heating time is relatively long, which prolongs the production cycle and reduces production efficiency.

[0006] 3. Insufficient molding precision: When the whole is heated, it is difficult to control the temperature of each part of the plastic sheet precisely. In particular, the temperature difference between the part to be molded and other parts is small, resulting in low dimensional and shape precision of the local molding, which is difficult to meet the needs of products such as concealed dining table panels that have high requirements for local structure.

[0007] 4. Material waste: During the overall vacuum forming process, the non-forming areas of the plastic sheet will also undergo certain deformation or loss due to heating, which increases material waste. Utility Model Content

[0008] To address the problems existing in the prior art, this utility model provides a local rapid vacuum forming device for plastic products, which has the advantages of reducing energy consumption, improving production efficiency, enhancing local forming accuracy, and reducing material waste. It solves the problems of existing vacuum forming equipment being unable to locally heat the plastic sheet, resulting in high energy consumption, low efficiency, insufficient forming accuracy, and material waste.

[0009] This invention is implemented as follows: a localized rapid vacuum forming device for plastic products includes a vacuum forming mold, a support plate symmetrically fixedly connected above the vacuum forming mold, an mounting plate fixedly connected above the support plate, an overall suction cup fixedly connected above the vacuum forming mold, a localized suction cup fixedly connected above the vacuum forming mold inside the overall suction cup, a vacuum adsorption assembly connected to the interior of the overall suction cup and the localized suction cup on the outside of the vacuum forming mold, the vacuum adsorption assembly being able to extract air from inside the overall suction cup and the localized suction cup, and a compaction heating assembly for compacting the plastic sheet and heating a localized area of ​​the plastic sheet on one side of the mounting plate.

[0010] As a preferred embodiment of the present invention, the vacuum adsorption assembly includes a vacuum pump disposed outside the blister mold, the blister mold having a plurality of vacuum suction holes, and the vacuum pump being connected to the interior of the overall suction cup and the partial suction cup respectively through pipes and the vacuum suction holes.

[0011] As a preferred embodiment of this invention, the compaction heating assembly includes a cylinder fixedly connected to one side of the mounting plate, and a forming pressure plate is fixedly connected to the output end of the cylinder.

[0012] As a preferred embodiment of this utility model, a heating tube is fixedly connected to the bottom of the mounting plate, and an exposed hole corresponding to the position of the heating tube is provided on the forming plate.

[0013] As a preferred embodiment of this invention, a temperature control module is provided below the vacuum forming mold.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. Reduced energy consumption: By heating only the area of ​​the plastic sheet to be thermoformed, energy loss caused by heating the entire plastic sheet is avoided.

[0016] 2. Improve production efficiency: Local heating greatly shortens the heating time, and each link can achieve automated collaborative operation, reducing the waiting time for manual operation and significantly improving production efficiency.

[0017] 3. Reduce material waste: The forming plate effectively shields and protects the non-forming areas, preventing the plastic sheet from unnecessary deformation or damage due to heating and adsorption forces. This significantly improves material utilization and forming accuracy. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram (with a plastic plate placed on it) provided by an embodiment of this utility model;

[0019] Figure 2This is a schematic diagram of the structure after removing the vacuum pump according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the cylinder and the mounting plate after disassembly provided in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the vacuum forming mold provided in this embodiment of the utility model.

[0022] In the diagram: 1. Vacuum forming mold; 2. Support plate; 3. Mounting plate; 4. Overall suction cup; 5. Partial suction cup; 6. Vacuum pump; 7. Vacuum suction hole; 8. Cylinder; 9. Forming plate; 10. Heating tube; 11. Exposed hole; 12. Constant temperature module. Detailed Implementation

[0023] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] refer to Figures 1 to 4 This utility model provides a localized rapid vacuum forming device for plastic products, including a vacuum forming mold 1. A support plate 2 is symmetrically fixedly connected to the top of the vacuum forming mold 1. An mounting plate 3 is fixedly connected to the top of the support plate 2. An overall suction cup 4 is fixedly connected to the top of the vacuum forming mold 1. A local suction cup 5 is fixedly connected to the top of the vacuum forming mold 1 inside the overall suction cup 4. A vacuum adsorption component is provided on the outside of the vacuum forming mold 1, communicating with the interior of the overall suction cup 4 and the local suction cup 5. The vacuum adsorption component can suck out the air inside the overall suction cup 4 and the local suction cup 5. A compaction heating component is provided on one side of the mounting plate 3 for compacting the plastic sheet and heating a localized area of ​​the plastic sheet.

[0026] In use, the plastic sheet is placed on the vacuum forming mold 1 (whose shape is consistent with the target shape of the part of the plastic sheet to be vacuum-formed) for positioning, and the vacuum adsorption component draws the entire suction cup 4 into a vacuum, thereby adsorbing and fixing the plastic sheet. Then, the compaction and heating component further compacts the plastic sheet and performs local heating. During this process, the vacuum adsorption component draws the internal part of the local suction cup 5 into a vacuum, thereby performing local vacuum forming of the plastic sheet. Through this setting, the problems of high energy consumption, low efficiency, insufficient forming accuracy and material waste caused by heating the entire plastic sheet can be effectively solved.

[0027] Furthermore, the vacuum adsorption assembly includes a vacuum pump 6 disposed outside the blister mold 1, and the blister mold 1 has a plurality of vacuum suction holes 7. The vacuum pump 6 is connected to the interior of the overall suction cup 4 and the partial suction cup 5 through pipes and the vacuum suction holes 7 respectively.

[0028] In use, the vacuum pump 6 draws air from the overall suction cup 4 and the partial suction cup 5 through the pipe (not shown in the figure) and the vacuum suction hole 7, thereby adsorbing and fixing the plastic sheet and performing vacuum forming.

[0029] Furthermore, the compaction heating assembly includes a cylinder 8 fixedly connected to one side of the mounting plate 3, a forming pressure plate 9 fixedly connected to the output end of the cylinder 8, a heating tube 10 fixedly connected to the lower part of the mounting plate 3, and an exposed hole 11 corresponding to the position of the heating tube 10 on the forming pressure plate 9.

[0030] In use, the cylinder 8 is activated to press the forming plate 9 downwards to further fix the plastic sheet. At the same time, the forming plate 9 and the exposed hole 11 can position, cover and expose the area to be heated on the plastic sheet, so that the heating tube 10 can accurately heat the area to be heated on the plastic sheet by infrared heating.

[0031] Furthermore, a temperature control module 12 is provided below the thermoforming mold 1.

[0032] When in use, the constant temperature module 12 (which is existing technology, so it will not be described in detail here) can keep the temperature of the vacuum forming mold 1 constant, so that its temperature is stable within a certain range, thereby effectively improving the vacuum forming effect of the plastic sheet and avoiding excessive temperature difference of the plastic sheet from affecting its vacuum forming quality.

[0033] The working principle of this utility model:

[0034] First, the constant temperature module 12 is activated to stabilize the temperature of the vacuum forming mold 1 within the set range, ensuring a stable forming environment. Then, the plastic sheet is placed on the vacuum forming mold 1, and the overall suction cup 4 is used to position and fix the plastic sheet to ensure a firm adsorption. After this, the forming plate 9 is pressed down by the cylinder 8 to further fix the plastic sheet and cover the non-forming area, exposing the area to be partially vacuum formed. Then, the air inside the local suction cup 5 is sucked out through the pipe and vacuum suction hole 7, and the heating tube 10 is activated to locally heat the plastic sheet, thereby tightly adsorbing the heated and softened plastic sheet to the surface of the vacuum forming mold 1, making it conform to the shape of the mold. After the plastic sheet cools and sets, the overall suction cup 4 and the local suction cup 5 are de-vacuumed, and the cylinder 8 drives the forming plate 9 to reset, so that the vacuum-formed plastic sheet can be removed.

[0035] 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.

[0036] 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 localized rapid vacuum forming device for plastic products, comprising a vacuum forming mold (1), characterized in that: A support plate (2) is symmetrically fixedly connected above the blister mold (1). An mounting plate (3) is fixedly connected above the support plate (2). An overall suction cup (4) is fixedly connected above the blister mold (1). A partial suction cup (5) is fixedly connected inside the overall suction cup (4) above the blister mold (1). A vacuum adsorption component communicating with the interior of the overall suction cup (4) and the partial suction cup (5) is provided outside the blister mold (1). The vacuum adsorption component can suck out the air inside the overall suction cup (4) and the partial suction cup (5). A compaction heating component for compacting the plastic sheet and heating a local part of the plastic sheet is provided on one side of the mounting plate (3).

2. The local rapid vacuum forming equipment for plastic products as described in claim 1, characterized in that: The vacuum adsorption assembly includes a vacuum pump (6) disposed outside the blister mold (1). The blister mold (1) has several vacuum suction holes (7). The vacuum pump (6) is connected to the interior of the overall suction cup (4) and the partial suction cup (5) through pipes and the vacuum suction holes (7).

3. The partial rapid vacuum forming equipment for plastic products as described in claim 1, characterized in that: The compaction heating assembly includes a cylinder (8) fixedly connected to one side of the mounting plate (3), and a forming pressure plate (9) is fixedly connected to the output end of the cylinder (8).

4. The partial rapid vacuum forming equipment for plastic products as described in claim 3, characterized in that: A heating tube (10) is fixedly connected to the bottom of the mounting plate (3), and an exposed hole (11) corresponding to the position of the heating tube (10) is opened on the forming plate (9).

5. The partial rapid vacuum forming equipment for plastic products as described in claim 1, characterized in that: A temperature control module (12) is provided below the vacuum forming mold (1).

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