Hot pressing device

Abstract

The present invention discloses a hot pressing device, which relates to the technical field of plastic pressing. The hot pressing device includes a fixing component, a plurality of pressing heads and a transmission component. The fixing component includes a first fixing piece, a second fixing piece and a pressing head fixing piece which are stacked in a first direction; the plurality of pressing heads are movably arranged on the pressing head fixing piece; the transmission component includes a plurality of first guide rods and a plurality of second guide rods. The first guide rods are movably arranged on the first fixing piece, and one end of each first guide rod penetrates through the second fixing piece and is connected to a pressing head. The second guide rods are movably arranged on the second fixing piece, and each second guide rod is connected to a pressing head. The first guide rods and the second guide rods are arranged in a staggered manner along the first direction; wherein, in a cross-section perpendicular to the first direction, at least part of the cross-sectional area of the first guide rods and at least part of the cross-sectional area of the second guide rods are larger than the cross-sectional area of the pressing heads. The technical solution provided by the present invention aims to increase the setting density of the pressing heads and improve the pressing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic pressing, and particularly relates to a hot pressing device. Background Art

[0002] In the assembly process of film-like materials and carrier plates, since there are cavities on the carrier plates, after the film-like materials and the carrier plates are adhered, a pressing device is required to press the film-like materials into the cavities of the carrier plates so that the film-like materials are closely adhered to the cavity walls. However, the cavity sizes of the carrier plates are small and densely distributed. Due to the limitation of the pressing structure size, the pressing device cannot press all the cavities simultaneously, seriously affecting the processing efficiency. Summary of the Invention

[0003] The main object of the present invention is to propose a hot pressing device, aiming to increase the setting density of the pressing heads and improve the pressing efficiency.

[0004] To achieve the above object, a hot pressing device proposed by the present invention includes:

[0005] A fixing component, the fixing component includes a first fixing member, a second fixing member, and a pressing head fixing member stacked along a first direction;

[0006] A plurality of pressing heads, the plurality of pressing heads are movably arranged on the pressing head fixing member and are arranged at intervals; and

[0007] A transmission component, the transmission component includes a plurality of first guide rods and a plurality of second guide rods. One end of each first guide rod is movably arranged on the first fixing member, the other end of each first guide rod penetrates through the second fixing member and is connected to a pressing head, one end of each second guide rod is movably arranged on the second fixing member, the other end of each second guide rod is connected to a pressing head, and the first guide rods and the second guide rods are arranged in a staggered manner along the first direction;

[0008] Wherein, in a cross-section perpendicular to the first direction, at least a part of the cross-sectional area of the first guide rod and at least a part of the cross-sectional area of the second guide rod are larger than the cross-sectional area of the pressing head.

[0009] In an embodiment, the first fixing member is provided with a plurality of first moving cavities, the second fixing member is provided with a plurality of second moving cavities and a plurality of communication cavities, the first moving cavities and the second moving cavities are arranged in a staggered manner along the first direction, one end of each first guide rod is movably arranged in a first moving cavity, the other end of each first guide rod movably passes through the communication cavity and is connected to the pressing head, and one end of each second guide rod is movably arranged in the second moving cavity.

[0010] In one embodiment, the second active chamber and the communication chamber are alternately and spaced apart along a second direction, and the second direction is set at an angle to the first direction;

[0011] And / or, the projections of the first active chamber and the second active chamber in the first direction at least partially overlap.

[0012] In one embodiment, each of the first guide rods includes a first piston and a first connecting rod. The first piston is movably disposed in the first active chamber. One end of the first connecting rod is connected to the first piston, and the other end of the first connecting rod movably passes through the communication chamber and is connected to the pressing head;

[0013] Wherein, in a cross-section perpendicular to the first direction, the cross-sectional area of the first piston is larger than the cross-sectional area of the pressing head.

[0014] In one embodiment, each of the second guide rods includes a second piston and a second connecting rod. The second piston is movably disposed in the second active chamber. One end of the second connecting rod is connected to the second piston, and the other end of the second connecting rod is connected to the pressing head;

[0015] Wherein, in a cross-section perpendicular to the first direction, the cross-sectional area of the second piston is larger than the cross-sectional area of the pressing head.

[0016] In one embodiment, in a cross-section perpendicular to the first direction, the cross-sectional area of the first connecting rod is smaller than the cross-sectional area of the first piston;

[0017] And / or, in a cross-section perpendicular to the first direction, the cross-sectional area of the second connecting rod is smaller than the cross-sectional area of the second piston.

[0018] In one embodiment, a first storage groove is provided on the circumferential side surface of the first piston. The first storage groove is used for storing a lubricating substance. A first sealing ring is sleeved on the part of the first connecting rod extending out of the first active chamber. The first sealing ring is used to prevent the leakage of the lubricating substance;

[0019] And / or, a second storage groove is provided on the circumferential side surface of the second piston. The second storage groove is used for storing a lubricating substance. A second sealing ring is sleeved on the part of the second connecting rod extending out of the second active chamber. The second sealing ring is used to prevent the leakage of the lubricating substance.

[0020] In one embodiment, the hot pressing device also includes a pressure regulating air source, and the fixing assembly also includes a third fixing member, the third fixing member is connected to the side of the first fixing member facing away from the second fixing member, the third fixing member is provided with an air cavity, the first fixing member is provided with an air passage connected to the second active cavity, the air cavity is connected to the air passage and the first active cavity, and the output end of the pressure regulating air source is connected to the air cavity.

[0021] In one embodiment, the hot pressing device also includes a guide member, which is arranged between the second fixing member and the pressure head fixing member, and the guide member is provided with a plurality of guide holes, each of the first guide rods is passed through one of the guide holes and connected to one of the pressure heads, and each of the second guide rods is passed through one of the guide holes and connected to one of the pressure heads.

[0022] In one embodiment, the pressure head fixing member is provided with a vacuum chamber and a fixing hole connected to the vacuum chamber, and one end of the pressure head movably passes through the fixing hole and extends into the vacuum chamber to be connected to the first guide rod or the second guide rod;

[0023] The hot pressing device also includes a vacuum air source, and an output end of the vacuum air source is connected to the vacuum chamber.

[0024] In the hot pressing device of the technical solution of the present invention, the first fixing member, the second fixing member and the punch fixing member are stacked along the first direction, and the first guide rod and the second guide rod are respectively movably arranged on the first fixing member and the second fixing member. Thus, the first fixing member and the second fixing member respectively provide support and protection for the first guide rod and the second guide rod, and one end of each first guide rod penetrates through the second fixing member and is connected to a punch movably arranged on the punch fixing member, and one end of each second guide rod is connected to a punch movably arranged on the punch fixing member. By driving the first guide rod and the second guide rod, the punch can be driven to move relative to the punch fixing member to realize the pressing of the material. At the same time, in the cross-section perpendicular to the first direction, at least part of the cross-sectional area of the first guide rod and at least part of the cross-sectional area of the second guide rod are larger than the cross-sectional area of the punch, so as to ensure the stability of driving the first guide rod and the second guide rod to drive the punch to move. In order to increase the setting density of the punch, the first fixing member, the second fixing member and the punch fixing member are stacked along the first direction, so that the first guide rod and the second guide rod are arranged in layers in the first direction. At the same time, the first guide rod and the second guide rod are arranged in a staggered manner in the first direction, that is, at least part of the projections of the first guide rod and the second guide rod in the first direction do not overlap. In this way, the connection between the first guide rod and the second guide rod and the punch can be avoided from interfering with each other, and then the setting density of the punch can be increased, so that the setting density of the punch can be consistent with the setting density of the cavities on the carrier plate. By driving all the first guide rods and the second guide rods, a plurality of punches can be driven to simultaneously press the corresponding cavities on the entire carrier plate, and the whole-plate pressing of the material can be completed at one time, effectively improving the pressing efficiency of the material. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic structural diagram of a hot pressing device in an embodiment provided by the present invention;

[0027] Figure 2 is Figure 1 a partial enlarged view of part A in.

[0028] Explanation of the reference numerals in the drawings:

[0029] 100. Hot pressing device; 1. Fixing component; 11. First fixing member; 111. First movable cavity; 112. Air passage; 12. Second fixing member; 121. Second movable cavity; 122. Connecting cavity; 13. Indenter fixing member; 131. Fixing hole; 132. Vacuum cavity; 14. Third fixing member; 141. Air cavity; 2. Indenter; 21. Limiting structure; 3. Transmission component; 31. First guide rod; 311. First piston; 312. First connecting rod; 313. First sealing ring; 32. Second guide rod; 321. Second piston; 322. Second connecting rod; 323. Second sealing ring; 4. Pressure regulating air source; 5. Guide member; 51. Guide hole; 6. Mounting member; 61. Avoidance hole; 7. Vacuum air source.

[0030] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can 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 protection scope required by the present invention.

[0034] Please refer to Figure 1 and Figure 2As shown in the figure, the present invention provides a hot pressing device 100, which includes a fixing component 1, a plurality of pressing heads 2 and a transmission component 3. The fixing component 1 includes a first fixing member 11, a second fixing member 12 and a pressing head fixing member 13 stacked along a first direction; the plurality of pressing heads 2 are movably arranged on the pressing head fixing member 13 and are spaced apart; the transmission component 3 includes a plurality of first guide rods 31 and a plurality of second guide rods 32. One end of each first guide rod 31 is movably arranged on the first fixing member 11, the other end of each first guide rod 31 penetrates through the second fixing member 12 and is connected to a pressing head 2, each second guide rod 32 is movably arranged on the second fixing member 12, and the other end of each second guide rod 32 is connected to a pressing head 2. The first guide rods 31 and the second guide rods 32 are arranged in a staggered manner along the first direction; wherein, in a cross-section perpendicular to the first direction, at least part of the cross-sectional area of the first guide rod 31 and at least part of the cross-sectional area of the second guide rod 32 are larger than the cross-sectional area of the pressing head 2.

[0035] In this embodiment, the first guide rods 31 and the second guide rods 32 are respectively movably arranged on the first fixing member 11 and the second fixing member 12, so as to respectively provide support and protection for the first guide rods 31 and the second guide rods 32 by using the first fixing member 11 and the second fixing member 12, and one end of each first guide rod 31 penetrates through the second fixing member 12 and is connected to a pressing head 2 movably arranged on the pressing head fixing member 13, and one end of each second guide rod 32 is connected to a pressing head 2 movably arranged on the pressing head fixing member 13. By driving the first guide rods 31 and the second guide rods 32, the pressing head 2 can be driven to move relative to the pressing head fixing member 13 to realize the pressing of the material. At the same time, in a cross-section perpendicular to the first direction, at least part of the cross-sectional area of the first guide rod 31 and at least part of the cross-sectional area of the second guide rod 32 are larger than the cross-sectional area of the pressing head 2, so as to ensure the stability of driving the first guide rods 31 and the second guide rods 32 to drive the pressing head 2 to move. In order to increase the setting density of the pressing heads 2, the first fixing member 11, the second fixing member 12 and the pressing head fixing member 13 are stacked along the first direction, so that the first guide rods 31 and the second guide rods 32 are arranged in layers in the first direction. At the same time, the first guide rods 31 and the second guide rods 32 are also arranged in a staggered manner in the first direction, that is, at least part of the projections of the first guide rods 31 and the second guide rods 32 in the first direction do not overlap. In this way, the connection between the first guide rods 31 and the second guide rods 32 and the pressing head 2 can be prevented from interfering with each other, and further the setting density of the pressing heads 2 can be increased, so that the setting density of the pressing heads 2 can be consistent with the setting density of the carrier plate cavities. By driving all the first guide rods 31 and the second guide rods 32, a plurality of pressing heads 2 can be driven to simultaneously press the corresponding cavities on the entire carrier plate, and the whole-plate pressing of the material can be completed at one time, effectively improving the pressing efficiency of the material.

[0036] It can be understood that in order to accurately press the film material into the cavity of the carrier plate by the indenter 2, the size of the indenter 2 should be consistent with the size of the cavity. Since the size of the cavity is very small, the size of the indenter 2 is also very small. It is very difficult to directly drive the indenter 2. By driving the indenter 2 to move with the help of the larger-sized first guide rod 31 and second guide rod 32, the driving difficulty of the indenter 2 can be effectively reduced, and the processing efficiency can be improved. Due to the size limitation of the first guide rod 31 and the second guide rod 32, in the case of only setting the first guide rod 31 or the second guide rod 32, even if the distance between two adjacent first guide rods 31 or two adjacent second guide rods 32 is set very small, the distance between the two indenters 2 connected to them is still greater than the distance between two adjacent cavities of the carrier plate. Therefore, in this application, the first guide rod 31 and the second guide rod 32 are arranged in layers and staggered, so that the parts with larger cross-sectional sizes of the first guide rod 31 and the second guide rod 32 avoid each other. In this way, at least one indenter 2 connected to the second guide rod 32 can be added between the indenters 2 connected by two adjacent first guide rods 31, thereby increasing the setting density of the indenters 2 and meeting the requirements of the whole-plate pressing of the material. In this application, each first guide rod 31 is arranged corresponding to one indenter 2, and each second guide rod 32 is arranged corresponding to one indenter 2. In this way, the connection structure of each indenter 2 and the transmission component 3 is relatively independent. When the indenter 2 needs to be repaired or replaced, the damaged indenter 2 can be repaired or replaced specifically, reducing the difficulty of repairing or replacing the indenter 2, and thus reducing the maintenance cost of the hot pressing device 100.

[0037] In actual implementation, the first direction in this application refers to Figure 1 the Y-axis direction of. In this embodiment, both the first guide rod 31 and the second guide rod 32 extend in the first direction to be connected to the indenter 2 provided on the indenter fixing member 13. In the projection along the first direction, both the first fixing member 11 and the second fixing member 12 are arranged in an array, and the array can be arranged in a rectangle, a circle, a triangle or other shapes. When the first fixing member 11 and the second fixing member 12 are arranged in a matrix, the first fixing member 11 and the second fixing member 12 are arranged in the second direction and the third direction. In the projection along the first direction, the second direction and the third direction are perpendicular to each other. The first fixing member 11 and the second fixing member 12 can be staggered only in the second direction, or only in the third direction, or staggered in both the second direction and the third direction at the same time, which is not specifically limited here. The first guide rod 31 and the second guide rod 32 can be slidably arranged on the first fixing member 11 and the second fixing member 12 respectively through slide holes or slide rails, etc., and the indenter 2 can also be arranged on the indenter fixing member 13 through slide holes or slide rails, etc. At least part of the first guide rod 31 extends out of the first fixing member 11 to be connected to the indenter 2, and at least part of the second guide rod 32 extends out of the second fixing member 12 to be connected to the indenter 2. The first guide rod 31 and the second guide rod 32 can be driven by hydraulic pressure or air pressure to facilitate driving all the indenters 2 to move simultaneously.

[0038] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the first fixing member 11 is provided with a plurality of first moving cavities 111, the second fixing member 12 is provided with a plurality of second moving cavities 121 and a plurality of communicating cavities 122. The first moving cavities 111 and the second moving cavities 121 are arranged in a staggered manner along the first direction. One end of each first guide rod 31 is movably arranged in a first moving cavity 111, the other end of each first guide rod 31 movably passes through a communicating cavity 122 and is connected to the pressing head 2. One end of each second guide rod 32 is movably arranged in a second moving cavity 121.

[0039] In this embodiment, the first moving cavities 111 of the first fixing member 11 and the second moving cavities 121 of the second fixing member 12 are arranged in a staggered manner along the first direction, that is, in the projection along the first direction of the first moving cavities 111 and the second moving cavities 121, the first moving cavities 111 and the second moving cavities 121 are at least partially non-overlappingly arranged. In this way, the first guide rods 31 arranged in the first moving cavities 111 and the second guide rods 32 arranged in the second moving cavities 121 can be arranged in a staggered manner along the first direction. The first guide rods 31 and the second guide rods 32 can move along the first moving cavities 111 and the second moving cavities 121 respectively. The first moving cavities 111 and the second moving cavities 121 respectively play a role in limiting and guiding the first guide rods 31 and the second guide rods 32, so that the first guide rods 31 and the second guide rods 32 move along a preset direction to drive the pressing head 2 to move along the preset direction, avoiding the pressing head 2 from shifting, resulting in incomplete pressing or damage to the material. At the same time, since the second fixing member 12 is located between the first fixing member 11 and the second fixing member 12, the second fixing member 12 is also provided with a communicating cavity 122 communicating with the first moving cavity 111. The communicating cavity 122 plays an avoidance role for the first guide rod 31, so that one end of the first guide rod 31 can penetrate the second fixing member 12 and be connected to the pressing head 2.

[0040] It can be understood that one ends of the first moving cavities 111 and the second moving cavities 121 close to the pressing head fixing member 13 respectively penetrate the surfaces of the first fixing member 11 and the second fixing member 12, and the communicating cavities 122 penetrate the two side surfaces of the second fixing member 12, so that one end of the first guide rod 31 extends out of the first moving cavity 111, passes through the communicating cavity 122 and is connected to the pressing head 2, and one end of the second guide rod 32 extends out of the second moving cavity 121 and is connected to the pressing head 2.

[0041] In actual implementation, the first active cavity 111 and the first guide rod 31 are arranged in one-to-one correspondence, the communication cavity 122 is also arranged in one-to-one correspondence with the first guide rod 31, the second active cavity 121 and the second guide rod 32 are arranged in one-to-one correspondence. The cavity wall of the active cavity and the first guide rod 31 are in clearance fit, the cavity wall of the communication cavity 122 is also in clearance fit with the first guide rod 31, and the cavity wall of the second active cavity 121 and the second guide rod 32 are in clearance fit, so as to further ensure the limiting and guiding effects of the first active cavity 111 and the communication cavity 122 on the first guide rod 31 and the limiting and guiding effects of the second active cavity 121 on the second guide rod 32, and maintain the moving resistance of the first guide rod 31 and the second guide rod 32 within a reasonable range.

[0042] Optionally, both the first active cavity 111 and the second active cavity 121 extend along the first direction, and the first guide rod 31 and the second guide rod 32 drive the pressure head 2 to move along the first direction for pressing; in a cross-section perpendicular to the first direction, the cross-sectional shapes of the first guide rod 31 and the first active cavity 111 are the same and not circular, and the cross-sectional shapes of the second guide rod 32 and the second active cavity 121 are the same and not circular, such as oval or polygon or other shapes, so as to facilitate the positioning and installation of the first guide rod 31 and the second guide rod 32, and at the same time avoid the first guide rod 31 and the second guide rod 32 rotating around the axis during transmission, reducing the stability of driving the pressure head 2 to move and affecting the pressing effect on the material.

[0043] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the second active cavity 121 and the communication cavity 122 are alternately and spaced along the second direction, and the second direction is set at an angle with the first direction. The first direction and the second direction can respectively refer to Figure 1 the Y-axis direction and the X-axis direction in

[0044] In this embodiment, the second active cavity 121 and the communication cavity 122 are alternately arranged along the second direction, so that in the projection along the first direction, the position of the communication cavity 122 corresponds to that of the first active cavity 111, so as to facilitate one end of the first guide rod 31 to pass through the communication cavity 122 along the first direction and be connected to the pressure head 2.

[0045] Optionally, the communication cavity 122 and the second active cavity 121 are coaxially arranged along the first direction, so that the first guide rod 31 extends along the first direction and moves along the first direction, avoiding the first guide rod 31 being deflected during the movement, resulting in an increase in the moving resistance of the first guide rod 31 in the second active cavity 121 and the communication cavity 122, and even causing the pressing position of the pressure head 2 to be deflected, the film material to be unevenly stressed, and the pressing quality of the material to be reduced.

[0046] It can be understood that the second direction in this application refers to Figure 1in the X-axis direction. The second direction in this embodiment is any direction within the plane where the second fixing member 12 is located. In the projection along the first direction, the second moving cavity 121 and the communication cavity 122 are alternately arranged along the second direction, that is, the second moving cavity 121 and the first moving cavity 111 are alternately arranged along the second direction. Optionally, the second direction is perpendicular to the first direction.

[0047] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the projections of the first moving cavity 111 and the second moving cavity 121 in the first direction at least partially overlap.

[0048] It can be understood that the second moving cavity 121 does not need to completely avoid the first moving cavity 111 in the projection in the first direction. The second moving cavity 121 only needs to avoid the part where the first guide rod 31 extends out of the first moving cavity 111. In the cross-section perpendicular to the first direction, the cross-sectional area of the part where the first guide rod 31 extends out of the first moving cavity 111 can be smaller than the cross-sectional area of the first moving cavity 111, and the cross-sectional area of the part where the second guide rod 32 extends out of the second moving cavity 121 can be smaller than the cross-sectional area of the second moving cavity 121. Therefore, the projections of the first moving cavity 111 and the second moving cavity 121 in the first direction can be overlapped, further increasing the setting density of the first guide rod 31 and the second guide rod 32, and then increasing the setting density of the indenter 2, so that the indenter 2 can meet the pressing requirements with a greater density.

[0049] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, each first guide rod 31 includes a first piston 311 and a first connecting rod 312. The first piston 311 is movably arranged in the first moving cavity 111. One end of the first connecting rod 312 is connected to the first piston 311, and the other end of the first connecting rod 312 movably passes through the communication cavity 122 and is connected to the indenter 2; wherein, in the cross-section perpendicular to the first direction, the cross-sectional area of the first piston 311 is larger than the cross-sectional area of the indenter 2.

[0050] In this embodiment, the first piston 311 and the indenter 2 are connected by a first connecting rod 312. The first piston 311 can drive the indenter 2 to move through the first connecting rod 312. In actual implementation, the first piston 311 and the first connecting rod 312 can be integrally provided, or can be detachably connected by structures such as bolts or buckles. The first piston 311 is in clearance fit with the wall of the first movable cavity 111. The first connecting rod 312 is disposed in the communication cavity 122 and is in clearance fit with the wall of the communication cavity 122. In this way, it can be ensured that the first piston 311 drives the indenter 2 to move along the preset direction through the first connecting rod 312, and the stability of the first piston 311 and the first connecting rod 312 during movement is improved. The first connecting rod 312 and the indenter 2 can be detachably connected by structures such as bolts or buckles, so as to facilitate the maintenance or replacement of the indenter 2. The first piston 311 can be driven by hydraulic pressure or air pressure, and then drives the indenter 2 to move through the first connecting rod 312. It can be understood that the first piston 311 and the first connecting rod 312 are made of materials with a certain rigidity, such as stainless steel or aluminum alloy, to ensure the driving accuracy of the indenter 2. In the cross-section perpendicular to the first direction, the cross-sectional area of the first piston 311 is larger than the cross-sectional area of the indenter 2. The larger cross-sectional area of the first piston 311 can reduce the lateral swing and vibration of the first piston 311 during movement, improve the stability of the first piston 311 during movement, and ensure the pressing quality of the indenter 2.

[0051] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, each second guide rod 32 includes a second piston 321 and a second connecting rod 322. The second piston 321 is movably disposed in the second movable cavity 121. One end of the second connecting rod 322 is connected to the second piston 321, and the other end of the second connecting rod 322 is connected to the indenter 2; in the cross-section perpendicular to the second direction, the cross-sectional area of the second piston 321 is larger than the cross-sectional area of the indenter 2.

[0052] In this embodiment, the second piston 321 and the indenter 2 are connected by a second connecting rod 322. The second piston 321 can drive the indenter 2 to move through the second connecting rod 322. In actual implementation, the second piston 321 and the second connecting rod 322 can be integrally provided, or can be detachably connected by structures such as bolts or buckles. The second piston 321 has a clearance fit with the cavity wall of the second movable cavity 121 so that the second piston 321 can move along a preset direction through the second connecting rod 322. The second piston 321 and the second connecting rod 322 can be integrally provided, or the second piston 321 and the second connecting rod 322 are detachably connected by structures such as bolts or buckles. The second connecting rod 322 and the indenter 2 can be detachably connected by structures such as bolts or buckles to facilitate the repair or replacement of the indenter 2. The second piston 321 can be driven by hydraulic pressure or air pressure, and then drive the indenter 2 to move through the second connecting rod 322. It can be understood that the second piston 321 and the second connecting rod 322 are made of a material with a certain rigidity, such as stainless steel or aluminum alloy, to ensure the driving accuracy of the indenter 2. In a cross-section perpendicular to the second direction, the cross-sectional area of the second piston 321 is larger than the cross-sectional area of the indenter 2, so that the second piston 321 is more stable during movement and improves the pressing quality of the indenter 2.

[0053] Optionally, in a cross-section perpendicular to the first direction, the cross-sectional area of the first connecting rod 312 is smaller than the cross-sectional area of the first piston 311; in a cross-section perpendicular to the first direction, the cross-sectional area of the first connecting rod 312 is equivalent to the cross-sectional area of the indenter 2, and the cross-sectional area of the communication cavity 122 is equivalent to the cross-sectional area of the first connecting rod 312, so that two adjacent second movable cavities 121 can be arranged closer, thereby increasing the setting density of the indenter 2.

[0054] In a cross-section perpendicular to the first direction, the cross-sectional area of the second connecting rod 322 is smaller than the cross-sectional area of the second piston 321. In a cross-section perpendicular to the second direction, the cross-sectional area of the second connecting rod 322 is equivalent to the cross-sectional area of the indenter 2, which is convenient for the connection between the second connecting rod 322 and the indenter 2, and at the same time can prevent the distance between adjacent second connecting rods 322 and first connecting rods 312 from being too small, resulting in an increase in the setting difficulty of the first connecting rod 312 and the second connecting rod 322 and a decrease in the transmission stability of the first connecting rod 312 and the second connecting rod 322.

[0055] In an embodiment of the present invention, such as Figure 1 and Figure 2As shown in the figure, a first storage groove is provided on the circumferential side surface of the first piston 311. The first storage groove is used for storing lubricating substances. A first sealing ring 313 is sleeved on the part of the first connecting rod 312 that extends out of the first moving cavity 111. The first sealing ring 313 is used to prevent the leakage of lubricating substances; and / or, a second storage groove is provided on the circumferential side surface of the second piston 321. The second storage groove is used for storing lubricating substances. A second sealing ring 323 is sleeved on the part of the second connecting rod 322 that extends out of the second moving cavity 121. The second sealing ring 323 is used to prevent the leakage of lubricating substances.

[0056] In this embodiment, a first storage groove and a second storage groove are respectively provided on the circumferential side surfaces of the first piston 311 and the second piston 321. The cavity walls of the first moving cavity 111 and the second moving cavity 121 respectively cover the openings of the first storage groove and the second storage groove. The first storage groove and the second storage groove are filled with lubricating substances to reduce the frictional resistance between the first piston 311 and the cavity wall of the first moving cavity 111 and the frictional resistance between the second piston 321 and the cavity wall of the second moving cavity 121, and to prevent the first piston 311 and the second piston 321 from being stuck when moving, which may affect the pressing quality of the pressing head 2.

[0057] In actual implementation, one or more first storage grooves and second storage grooves can be provided. A plurality of first storage grooves are arranged at intervals along the circumferential direction of the first piston 311, and a plurality of second storage grooves are arranged at intervals along the circumferential direction of the second piston 321. The number of the first storage grooves and the second storage grooves can be one, two, three, four or other numbers.

[0058] It can be understood that the lubricating substance can be grease, carbon powder, etc., which are not specifically limited herein. To prevent the lubricating substance from leaking from the first moving cavity 111 and the second moving cavity 121, sealing rings are provided at the openings of the first moving cavity 111 and the second moving cavity 121 close to the pressing head 2. The sealing rings are located between the inner wall of the opening of the first moving cavity 111 and the first connecting rod 312 and between the inner wall of the opening of the second moving cavity 121 and the second connecting rod 322, so as to prevent the lubricating substance from leaking between the inner wall of the opening of the first moving cavity 111 and the first connecting rod 312 and the inner wall of the opening of the second moving cavity 121, resulting in the pollution of the hot pressing device 100 by the lubricating substance or even dripping onto the material to contaminate the material.

[0059] In this embodiment, a first sealing ring 313 is sleeved on the part of the first connecting rod 312 that extends out of the first moving cavity 111, and a second sealing ring 323 is sleeved on the part of the second connecting rod 322 that extends out of the second moving cavity 121. The settings of the first sealing ring 313 and the second sealing ring 323 can further prevent the lubricating substance from flowing along the first connecting rod 312 and the second connecting rod 322 to the pressing head 2 and dripping onto the material from the gap between the pressing head 2 and the pressing head fixing member 13 to contaminate the material.

[0060] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the hot pressing device 100 further includes a pressure regulating air source 4, and the fixing assembly 1 further includes a third fixing member 14. The third fixing member 14 is connected to a side of the first fixing member 11 away from the second fixing member 12. The third fixing member 14 is provided with an air cavity 141. The first fixing member 11 is provided with an air passage 112 communicating with the second moving cavity 121. The air cavity 141 is communicated with the air passage 112 and the first moving cavity 111. The output end of the pressure regulating air source 4 is communicated with the air cavity 141.

[0061] In this embodiment, the pressure regulating air source 4 is communicated with both the first moving cavity 111 and the second moving cavity 121 through the third fixing member 14. It can be understood that the third fixing member 14 is provided with an air cavity 141. The output end of the pressure regulating air source 4 is communicated with the inlet of the air cavity 141. The air cavity 141 is provided with an outlet corresponding to each of the first moving cavity 111 and the second moving cavity 121. Since the third fixing member 14 is arranged on a side of the first fixing member 11 away from the second fixing member 12, the air cavity 141 can be directly communicated with the first moving cavity 111 and communicated with the second moving cavity 121 through the air passage 112 on the first fixing member 11. In this way, the pressure regulating air source 4 can drive all the first guide rods 31 and the second guide rods 32 to drive all the pressing heads 2 to move simultaneously to perform a full-plate pressing on the material, and at the same time, it is also beneficial to the synchronism and pressure consistency of all the pressing heads 2, thereby improving the pressing quality of the pressing heads 2.

[0062] It can be understood that the air passages 112 are arranged in one-to-one correspondence with the second moving cavities 121. Optionally, the air passages 112 and the first moving cavities 111 are alternately arranged at intervals in the second direction. In a cross-section in the first direction, the cross-sectional area of the air passage 112 is smaller than the cross-sectional area of the second moving cavity 121 to reduce the distance between two adjacent first moving cavities 111 and increase the setting density of the first guide rods 31, thereby ensuring the setting density of the pressing heads 2. Both the first moving cavity 111 and the second moving cavity 121 are provided with openings at both ends. The air passage 112 penetrates through both side surfaces of the first fixing member 11. In order to prevent gas leakage during transmission, a plurality of sealing rings are arranged between the third fixing member 14 and the first fixing member 11. The sealing rings are arranged around the outlet of the air cavity 141 and the first moving cavity 111 or the air passage 112. A plurality of sealing rings are arranged between the first fixing member 11 and the second fixing member 12. The sealing rings are arranged around the air passage 112 or the second moving cavity 121; or, a sealing gasket is arranged between the third fixing member 14 and the first fixing member 11. The sealing gasket is provided with communication holes corresponding to the outlet of the air cavity 141 and the air passage 112, and communication holes corresponding to the outlet of the air cavity 141 and the first moving cavity 111. A sealing gasket is arranged between the first fixing member 11 and the second fixing member 12. The sealing gasket is provided with communication holes corresponding to the air passage 112 and the second moving cavity 121.

[0063] In actual implementation, the pressure regulating air source 4 includes an air pump or a compressor, which realizes the reciprocating drive of the first guide rod 31 and the second guide rod 32 through air delivery and air extraction, and then drives the pressure head 2 to descend or lift, so as to realize multiple pressings. The pressure regulating air source 4 further includes an electro-pneumatic proportional valve arranged at the output end of the air pump or the compressor to precisely control the air flow rate, and further precisely control the pressure transmitted by the transmission assembly 3 to the pressure head 2, effectively ensuring the pressing quality of the pressure head 2.

[0064] In actual implementation, the hot pressing device 100 further includes a heating module, such as a heating tube, a heating sheet, a heating wire, etc. The heating module can be arranged on the third fixing member 14, or a receiving groove is arranged on the third fixing member 14, and the heating module is arranged in the receiving groove. The heating module heats the third fixing member 14, thereby heating the first fixing member 11, the second fixing member 12, and the first guide rod 31 and the second guide rod 32 arranged on the first fixing member 11 and the second fixing member 12, and further heating the hot pressing head 2, so that when the pressure head 2 presses the material, the film material can be softened and activated, and the film material fits more closely with the pit wall on the carrier plate, effectively improving the pressing quality. Optionally, a heating member for heating the gas, such as a heating tube, a heating sheet, a heating wire, etc., can be arranged at the input end of the pressure regulating air source 4 to preheat the gas entering the hot pressing device 100 and prevent the gas from taking away the heat of the hot pressing device 100 and affecting the pressing effect.

[0065] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the hot pressing device 100 further includes a guiding member 5. The guiding member 5 is arranged between the second fixing member 12 and the pressure head fixing member 13. The guiding member 5 is provided with a plurality of guiding holes 51. Each first guide rod 31 passes through a guiding hole 51 and is connected to a pressure head 2, and each second guide rod 32 passes through a guiding hole 51 and is connected to a pressure head 2.

[0066] In this embodiment, the guiding member 5 is provided with guiding holes 51 for guiding the first guide rod 31 and the second guide rod 32. The arrangement of the guiding holes 51 can further ensure the stability of the first guide rod 31 and the second guide rod 32 during movement, so that the first guide rod 31 and the second guide rod 32 can accurately transmit the pressure to the pressure head 2 and ensure the pressing quality of the pressure head 2.

[0067] Optionally, the guiding holes 51 are coaxially arranged with the first moving cavity 111 or the second moving cavity 121 and are arranged in one-to-one correspondence with the pressure heads 2. The guiding holes 51 are used for the parts of the first guide rod 31 extending out of the first cavity and the second guide rod 32 extending out of the second cavity to pass through. In actual implementation, the guiding member 5 is connected to the second fixing member 12 and is arranged in a stacked manner with the second fixing member 12. The first connecting rod 312 and the second connecting rod 322 pass through the guiding holes 51.

[0068] In an embodiment of the present invention, asFigure 1 and Figure 2 As shown in Figure 2 , the indenter fixing member 13 is provided with a vacuum chamber 132 and a fixing hole 131 communicating with the vacuum chamber 132. One end of the indenter 2 movably passes through the fixing hole 131 and extends into the vacuum chamber 132, and is connected to the first guide rod 31 or the second guide rod 32. The hot pressing device 100 further includes a vacuum source 7, and the output end of the vacuum source 7 communicates with the vacuum chamber 132.

[0069] In this embodiment, the indenter 2 is limited within the fixing hole 131, and the fixing hole 131 guides the indenter 2 to ensure that the indenter 2 can move up and down accurately. The fixing holes 131 are provided in one-to-one correspondence with the indenters 2. The vacuum chamber 132 is located on the side of the fixing hole 131 close to the second fixing member 12 and communicates with all the fixing holes 131. The vacuum source 7 communicates with the vacuum chamber 132 and continuously pumps air out of the vacuum chamber 132. In this way, the debris worn by the first guide rod 31, the second guide rod 32 and the indenter 2, or the lubricating substances coated on the first guide rod 31, the second guide rod 32 and the indenter 2, or other impurities can be adsorbed, avoiding the leakage of debris, lubricating substances or other impurities from the gap between the indenter 2 and the indenter fixing member 13 and falling onto the material to contaminate the material. Optionally, the vacuum source 7 can be an air pump or a compressor, which is not specifically limited herein.

[0070] In one embodiment, both ends of the indenter 2 extend out of the two end ports of the fixing hole 131, and limiting structures 21 are provided on the extending parts at both ends of the indenter 2. The limiting structures 21 can be in limiting cooperation with the indenter fixing member 13 to limit the upward and downward strokes of the indenter 2 and ensure the consistency of the strokes of all the indenters 2. The limiting structure 21 at the end of the indenter 2 far from the transmission assembly 3 can also cooperate with the carrier plate to further limit the downward stroke of the indenter 2. It can be understood that the upper surface of the limiting structure 21 can be in limiting cooperation with the indenter fixing member 13 to limit the upward lifting height of the indenter 2, and the lower surface of the limiting structure 21 can be in limiting cooperation with the surface of the carrier plate to limit the depth of the indenter 2 pressing into the pit of the carrier plate. Optionally, the limiting structure 21 can be a protrusion provided on the circumferential side of the indenter 2, and a plurality of protrusions can be arranged at intervals along the circumferential side of the indenter 2, or arranged in a ring shape. The limiting structure 21 can be movably provided on the indenter 2, which is not specifically limited herein.

[0071] During actual implementation, the indenter 2 is coaxially arranged with the first guide rod 31 or the second guide rod 32 to ensure the accuracy of the force transmission and displacement transmission of the first guide rod 31 or the second guide rod 32 to the indenter 2. The axial directions of the indenter 2, the first guide rod 31 and the second guide rod 32 are the first direction, and the indenter 2 rises or falls along the first direction.

[0072] In one embodiment of the present invention, as Figure 1 and Figure 2As shown, the hot pressing device 100 further includes a mounting member 6. The third fixing member 14, the first fixing member 11, the second fixing member 12, the guiding member 5, the mounting member 6, and the pressing head fixing member 13 are sequentially stacked. The mounting member 6 serves as the mounting platform of the entire hot pressing device 100 and is used for connecting the hot pressing device 100 to other mechanisms. The mounting member 6 is provided with avoidance holes 61 corresponding to each first guide rod 31 and each second guide rod 32 for one end of the first guide rod 31 and one end of the second guide rod 32 to pass through the mounting member 6 and be connected to the pressing head 2. The avoidance holes 61 can be in clearance fit with the first guide rod 31 and the second guide rod 32 to further guide the first guide rod 31 and the second guide rod 32. Optionally, the vacuum chamber 132 is formed by enclosing the mounting member 6 and the pressing head fixing member 13. The vacuum air source 7 is disposed on the mounting member 6 and is communicated with the vacuum chamber 132.

[0073] The above are only exemplary embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A hot pressing device, characterized in that: The hot pressing device comprises: A fixing assembly, the fixing assembly comprising a first fixing member, a second fixing member and a pressure head fixing member stacked along a first direction; A plurality of pressing heads, wherein the plurality of pressing heads are movably disposed on the pressing head fixing member and are arranged at intervals; and A transmission assembly, the transmission assembly includes a plurality of first guide rods and a plurality of second guide rods, one end of each of the first guide rods is movably arranged on the first fixing member, the other end of each of the first guide rods passes through the second fixing member and is connected to a pressure head, one end of each of the second guide rods is movably arranged on the second fixing member, the other end of each of the second guide rods is connected to a pressure head, and the first guide rod and the second guide rod are staggered along the first direction; the first fixing member is provided with a plurality of first movable cavities, the second fixing member is provided with a plurality of second movable cavities and a plurality of connecting cavities, the first movable cavity and the second movable cavity are staggered along the first direction, one end of each of the first guide rods is movably arranged in a first movable cavity, the other end of each of the first guide rods movably passes through a connecting cavity and is connected to the pressure head, and one end of each of the second guide rods is movably arranged in a second movable cavity; the second movable cavities and the connecting cavities are alternately and spaced along the second direction, and the second direction is arranged at an angle to the first direction; Wherein, in a cross section perpendicular to the first direction, at least a partial cross-sectional area of ​​the first guide rod and at least a partial cross-sectional area of ​​the second guide rod are larger than a cross-sectional area of ​​the pressure head.

2. The hot pressing device according to claim 1, characterized in that Projections of the first active cavity and the second active cavity in the first direction at least partially overlap.

3. The hot pressing device according to claim 1, characterized in that: Each of the first guide rods includes a first piston and a first connecting rod, the first piston is movably disposed in the first movable cavity, one end of the first connecting rod is connected to the first piston, and the other end of the first connecting rod movably passes through the communicating cavity and is connected to the pressure head; Wherein, in a cross section perpendicular to the first direction, a cross-sectional area of ​​the first piston is larger than a cross-sectional area of ​​the pressure head.

4. The hot pressing device according to claim 3, characterized in that: Each of the second guide rods includes a second piston and a second connecting rod, the second piston is movably disposed in the second movable chamber, one end of the second connecting rod is connected to the second piston, and the other end of the second connecting rod is connected to the pressure head; Wherein, in a cross section perpendicular to the first direction, a cross-sectional area of ​​the second piston is larger than a cross-sectional area of ​​the pressure head.

5. The hot pressing device according to claim 4, characterized in that In a cross section perpendicular to the first direction, a cross-sectional area of ​​the first connecting rod is smaller than a cross-sectional area of ​​the first piston; And / or, in a cross section perpendicular to the first direction, a cross-sectional area of ​​the second connecting rod is smaller than a cross-sectional area of ​​the second piston.

6. The hot pressing device according to claim 4, characterized in that: A first storage groove is provided on the peripheral side of the first piston, and the first storage groove is used to store lubricating substances. A first sealing ring is provided on the portion of the first connecting rod extending out of the first movable chamber, and the first sealing ring is used to prevent leakage of the lubricating substances. And / or, a second storage groove is provided on the peripheral side of the second piston, the second storage groove is used to store lubricating substances, and a second sealing ring is provided on the portion of the second connecting rod extending out of the second movable chamber, the second sealing ring is used to prevent leakage of the lubricating substances.

7. The hot pressing device according to claim 1, characterized in that: The hot pressing device also includes a pressure regulating air source, and the fixing assembly also includes a third fixing member, the third fixing member is connected to the side of the first fixing member facing away from the second fixing member, the third fixing member is provided with an air cavity, the first fixing member is provided with an air channel connected to the second active cavity, the air cavity is connected to the air channel and the first active cavity, and the output end of the pressure regulating air source is connected to the air cavity.

8. The hot pressing device according to claim 1, characterized in that: The hot pressing device also includes a guide member, which is arranged between the second fixing member and the pressure head fixing member. The guide member is provided with a plurality of guide holes. Each of the first guide rods is passed through one of the guide holes and connected to one of the pressure heads. Each of the second guide rods is passed through one of the guide holes and connected to one of the pressure heads.

9. The hot pressing device according to any one of claims 1 to 8, characterized in that: The pressure head fixing member is provided with a vacuum cavity and a fixing hole connected to the vacuum cavity, one end of the pressure head movably passes through the fixing hole and extends into the vacuum cavity to be connected with the first guide rod or the second guide rod; The hot pressing device also includes a vacuum air source, and an output end of the vacuum air source is connected to the vacuum chamber.

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