Hot press molding mold

Abstract

The utility model discloses hot press forming die, including heat conduction middle plate, upper die and lower die, the bottom of upper die has the pressing column of contact heat conduction middle plate, one side of heat conduction middle plate is connected with lower die rotation, and the bottom of upper die has the top contact column of top contact heat conduction middle plate, when hot press forming die closes, heat conduction middle plate is located between upper die and lower die, and heat conduction middle plate and upper die form the upper cavity that encloses, and heat conduction middle plate and lower die form the lower cavity that encloses. This hot press forming die production efficiency is high, can effectively reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, and in particular to hot pressing molding die. Background Technology

[0002] Hot pressing is a process that heats and applies pressure to shape a material. Specifically, it uses heat to soften the material, and then, under pressure, forces the material to flow and deform in a mold to obtain a product of the desired shape and size. Alternatively, it softens the material and allows it to fully bond with another material to create a multi-layered composite product. The materials can be thermoplastics, thermosetting plastics, composite materials, etc.

[0003] With the continuous development of industrial production, thermoforming technology has been widely used in many fields, such as automotive parts manufacturing, electronic device housing molding, and aerospace composite material component production. Existing thermoforming molds generally include mating lower and upper molds, forming a cavity between them for molding the product. In current technology, this cavity is a single-layer structure, and each thermoforming operation can only form a maximum of multiple products on the same layer. This design, to some extent, limits the improvement of processing efficiency and makes it difficult to meet the urgent needs of large-scale, high-efficiency production. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a hot pressing molding die with high production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a hot pressing molding die, comprising:

[0006] Thermally conductive middle plate;

[0007] The upper mold has a pressure post at its bottom that abuts against the heat-conducting middle plate;

[0008] The lower mold has a heat-conducting middle plate rotatably connected to one side of the lower mold, and the bottom of the upper mold has a top abutment post that abuts against the heat-conducting middle plate;

[0009] When the hot pressing mold is closed, the heat-conducting middle plate is located between the upper mold and the lower mold, and the heat-conducting middle plate and the upper mold enclose the upper cavity to form the lower cavity.

[0010] In one embodiment, the upper mold is provided with an upper contour groove, and a surface of the heat-conducting middle plate is provided with a first contour groove corresponding to the upper contour groove, the upper contour groove and the first contour groove cooperate to form the upper cavity; and / or, the lower mold is provided with a lower contour groove, and the other surface of the heat-conducting middle plate opposite to the lower contour groove is provided with a second contour groove corresponding to the lower contour groove, the lower contour groove and the second contour groove cooperate to form the lower cavity.

[0011] In one embodiment, the upper cavity and the lower cavity are arranged in a one-to-one correspondence.

[0012] In one embodiment, at least a portion of the top abutment is vertically movable relative to the lower mold, and the assembly also includes an elastic element that contacts both the top abutment and the lower mold to drive the top abutment upward.

[0013] In one embodiment, the pressing column and the top pressing column are arranged in a one-to-one correspondence.

[0014] In one embodiment, the number of the heat-conducting plates is one or more.

[0015] In one embodiment, a stop plate is provided on the lower mold, the stop plate being used to limit the flipping angle of the heat-conducting middle plate.

[0016] In one embodiment, the stop plate is provided with a magnet for magnetically attracting the heat-conducting middle plate.

[0017] In one embodiment, the stop plate includes a fixed part and a stop part connected together. The fixed part is fixedly connected to the lower mold, and the stop part is located on the side of the fixed part away from the lower mold. The fixed part is provided with a hinge, and the heat-conducting middle plate is indirectly connected to the lower mold through the hinge.

[0018] In one embodiment, the lower mold is provided with a positioning block for positioning the heat-conducting middle plate.

[0019] The beneficial effects of this utility model are as follows:

[0020] A heat-conducting middle plate is rotated on the lower mold, forming an upper cavity and a lower cavity when the mold is closed. This allows two layers of products to be produced simultaneously in one hot pressing operation, thereby significantly improving production efficiency and effectively meeting the needs of large-scale, high-efficiency production.

[0021] The heat-conducting middle plate, which is rotatably connected to the lower mold, not only increases the number of cavities in the hot pressing mold, but also maintains the simplicity and ease of operation of the mold structure. It does not require large-scale modification of the existing hot pressing equipment and eliminates the risk of losing the heat-conducting middle plate.

[0022] This mold is suitable for hot pressing of various materials, such as thermoplastics, thermosetting plastics, and composite materials. It has wide applicability and good versatility, and can be widely used in automotive parts manufacturing, electronic device housing molding, and aerospace composite component production, providing strong technical support for the development of related industries and having significant economic and social benefits. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 Schematic diagram of hot pressing mold Figure 1 ;

[0025] Figure 2 Schematic diagram of the hot pressing mold Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the upper mold in a thermoforming die;

[0027] Figure 4 This is a schematic diagram of the structure of the lower mold and the heat-conducting middle plate in a hot pressing mold;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a partial sectional view of a thermoforming mold.

[0030] Explanation of icon numbers:

[0031] 1. Heat-conducting middle plate; 11. First contour groove; 12. Second contour groove;

[0032] 2. Upper mold; 21. Upper contour groove; 22. Positioning hole;

[0033] 3. Lower mold; 31. Lower contour groove; 32. Conical head positioning pin;

[0034] 4. Counterweight column;

[0035] 5. Top support column;

[0036] 6. Elastic components;

[0037] 7. Stop plate; 71. Fixing part; 72. Stop part;

[0038] 8. Magnet;

[0039] 9. Positioning block;

[0040] 10. Hinge. Detailed Implementation

[0041] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0042] 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.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0045] Furthermore, if the meaning of "and / or" in the entire text is to include three parallel solutions, taking "and A / or B" as an example, it includes solution A, solution B, and a solution that simultaneously satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] Example

[0048] Please combine Figures 1 to 4The hot pressing molding die includes a heat-conducting middle plate 1, an upper mold 2, and a lower mold 3. The bottom of the upper mold 2 has a pressing post 4 that abuts against the heat-conducting middle plate 1. One side of the heat-conducting middle plate 1 is rotatably connected to the lower mold 3. The bottom of the upper mold 2 has a pressing post 5 that abuts against the heat-conducting middle plate 1. When the hot pressing molding die is closed, the heat-conducting middle plate 1 is located between the upper mold 2 and the lower mold 3. The heat-conducting middle plate 1 and the upper mold 2 enclose each other to form an upper cavity, and the heat-conducting middle plate 1 and the lower mold 3 enclose each other to form a lower cavity. Specifically, the pressing post 4 abuts against one surface of the heat-conducting middle plate 1, and the pressing post 5 abuts against the opposite surface of the heat-conducting middle plate 1, thereby ensuring the dimensional stability of the upper cavity and the lower cavity, and thus ensuring the dimensional accuracy of the product.

[0049] To ensure more balanced force distribution on the heat-conducting platen 1 during mold closing in hot pressing, it is preferable that the pressure post 4 and the top pressure post 5 are arranged in a one-to-one correspondence. Please refer to... Figure 6 .

[0050] Optionally, the heat-conducting middle plate 1 is made of steel. In this embodiment, the heat-conducting middle plate 1 is made of NAK80 material, the lower mold 3 is made of steel, and the upper mold 2 is made of steel. In other embodiments, the heat-conducting middle plate 1 can also be made of other heat-conducting materials. Similarly, the lower mold 3 can also be made of other heat-conducting materials, and the upper mold 2 can also be made of other heat-conducting materials.

[0051] The number of heat-conducting intermediate plates 1 in the hot-press forming mold can be one or more. To improve production efficiency, it is preferable that the number of heat-conducting intermediate plates 1 is multiple, such as... Figure 2 and Figure 4 As shown, in this embodiment, two heat-conducting plates 1 are respectively connected to both sides of the lower mold 3.

[0052] In one or more embodiments, please refer to Figure 3 and Figure 4 The upper mold 2 is provided with an upper contour groove 21, and a surface of the heat-conducting middle plate 1 is provided with a first contour groove 11 corresponding to the upper contour groove 21. The upper contour groove 21 and the first contour groove 11 cooperate to form the upper cavity; and / or, please combine Figure 4 The lower mold 3 is provided with a lower contour groove 31, and the opposite surface of the heat-conducting middle plate 1 is provided with a second contour groove 12 corresponding to the lower contour groove 31. The lower contour groove 31 and the second contour groove 12 cooperate to form the lower cavity. Of course, in some embodiments, the surface of the heat-conducting middle plate 1 can also be flat, and the design can be selectively made according to the contour of the hot-pressed product.

[0053] In other embodiments, the upper cavity and the lower cavity can be staggered, and the upper cavity and the lower cavity can have different dimensions, so that the upper cavity and the lower cavity can produce products of different sizes and shapes. However, in this embodiment, the upper cavity and the lower cavity have the same size, and the upper cavity and the lower cavity produce products of the same size and shape. In this case, it is preferable that the upper cavity and the lower cavity are arranged in a one-to-one correspondence. Taking a product composed of a fiberglass layer and a leather surface as an example, the leather surface of the product located in the upper cavity and the leather surface of the product located in the lower cavity respectively contact the heat-conducting plate 1. This placement of the product helps to optimize the heat transfer path and improve the consistency of product production. Specifically, the upper mold 2 and the lower mold 3 are heated simultaneously, and the heat transfer path is: upper mold 2 / lower mold 3 → fiberglass layer of the product in the upper cavity / fiberglass layer of the product in the lower cavity → leather surface of the product in the upper cavity / leather surface of the product in the lower cavity → heat-conducting plate 1. That is to say, the heat-conducting plate 1 simultaneously receives heat transferred from the upper mold 2 and heat transferred from the lower mold 3.

[0054] Please combine Figure 6 At least a portion of the top abutment post 5 is vertically adjustable relative to the lower mold 3. The hot press forming mold also includes an elastic element 6, which contacts both the top abutment post 5 and the lower mold 3 to drive the top abutment post 5 upwards. This allows the heat-conducting middle plate 1 to be automatically lifted after the hot press forming mold opens, thus improving the separation of the heat-conducting middle plate 1 and the lower mold 3. In this embodiment, the top abutment post 5, located away from the connection point between the heat-conducting middle plate 1 and the lower mold 3, is vertically adjustable relative to the lower mold 3. Please refer to... Figure 5 .

[0055] Please combine Figure 6 In some embodiments, the elastic element 6 may be a spring or the like sleeved on the top abutment post 5.

[0056] Please combine Figure 1 , Figure 2 and Figure 4 To prevent the heat-conducting plate 1 from rotating beyond its range and causing damage or inconvenience to the operator, in some embodiments, the lower mold 3 is provided with a stop plate 7. The stop plate 7 is used to limit the flipping angle of the heat-conducting plate 1. When the heat-conducting plate 1 is flipped to the maximum angle position, the heat-conducting plate 1 contacts the stop plate 7.

[0057] Optionally, the stop plate 7 includes a fixed part 71 and a stop part 72 connected together. The fixed part 71 is fixedly connected to the lower mold 3, and the stop part 72 is located on the side of the fixed part 71 away from the lower mold 3. A hinge 10 is provided on the fixed part 71, and the heat-conducting middle plate 1 is indirectly connected to the lower mold 3 through the hinge 10. In this embodiment, the stop plate 7 is generally obtuse-angled, which allows the heat-conducting middle plate 1 to have a sufficiently large flipping angle to facilitate the loading and unloading of material in the lower cavity. In other embodiments, the stop plate 7 can also be generally right-angled.

[0058] To prevent the heat-conducting middle plate 1 from accidentally closing with the lower mold 3, optionally, the stop plate 7 is provided with a magnet 8 for magnetically attracting the heat-conducting middle plate 1. Specifically, the magnet 8 is provided on the stop portion 72.

[0059] Please combine Figure 4 and Figure 5 To further ensure the dimensional accuracy of the hot-pressed products, in some embodiments, the lower mold 3 is provided with a positioning block 9 for positioning the heat-conducting middle plate 1. Since there is frictional loss between the heat-conducting middle plate 1 and the positioning block 9 during the flipping process, the positioning block 9 is preferably made of wear-resistant material. In this embodiment, the positioning block 9 is made of steel, which can extend the service life of the hot-pressing mold.

[0060] Please combine Figure 3 and Figure 4 The upper mold 2 is further provided with a positioning hole 22, and the lower mold 3 is further provided with a conical positioning pin 32 that mates with the positioning hole 22. The mating of the conical positioning pin 32 and the positioning hole 22 ensures the mold closing accuracy of the hot pressing mold, which is beneficial to further improving the dimensional accuracy of the hot-pressed product. In other embodiments, it is also acceptable for the positioning hole 22 to be located on the lower mold 3 and the conical positioning pin 32 to be located on the upper mold 2.

[0061] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A hot pressing mold, characterized in that: include Thermally conductive middle plate; The upper mold has a pressure post at its bottom that abuts against the heat-conducting middle plate; The lower mold has a heat-conducting middle plate rotatably connected to one side of the lower mold, and the bottom of the upper mold has a top abutment post that abuts against the heat-conducting middle plate; When the hot pressing mold is closed, the heat-conducting middle plate is located between the upper mold and the lower mold, and the heat-conducting middle plate and the upper mold enclose the upper cavity to form the lower cavity.

2. The hot pressing forming mold according to claim 1, characterized in that: The upper mold is provided with an upper contour groove, and one surface of the heat-conducting middle plate is provided with a first contour groove corresponding to the upper contour groove. The upper contour groove and the first contour groove cooperate to form the upper cavity; and / or, the lower mold is provided with a lower contour groove, and the other surface of the heat-conducting middle plate opposite to it is provided with a second contour groove corresponding to the lower contour groove. The lower contour groove and the second contour groove cooperate to form the lower cavity.

3. The hot pressing forming mold according to claim 1, characterized in that: The upper cavity and the lower cavity are configured in a one-to-one correspondence.

4. The hot pressing mold according to claim 1, characterized in that: At least a portion of the top abutment post is vertically movable relative to the lower mold, and the assembly also includes an elastic element that contacts both the top abutment post and the lower mold to drive the top abutment post upward.

5. The hot pressing forming mold according to claim 1, characterized in that: The pressure column and the top pressure column are arranged in a one-to-one correspondence.

6. The hot pressing mold according to claim 1, characterized in that: The number of the heat-conducting plates is one or more.

7. The hot pressing mold according to claim 1, characterized in that: The lower mold is provided with a stop plate, which is used to limit the flipping angle of the heat-conducting middle plate.

8. The hot pressing mold according to claim 7, characterized in that: The stop plate is equipped with magnets for magnetically attracting the heat-conducting middle plate.

9. The hot pressing mold according to claim 7, characterized in that: The stop plate includes a fixed part and a stop part connected together. The fixed part is fixedly connected to the lower mold. The stop part is located on the side of the fixed part away from the lower mold. The fixed part is provided with a hinge. The heat-conducting middle plate is indirectly connected to the lower mold through the hinge.

10. The hot pressing mold according to claim 1, characterized in that: The lower mold is provided with a positioning block for positioning the heat-conducting middle plate.

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