Hot pressing device

Abstract

The invention discloses a hot pressing device, and relates to the technical field of plastic pressing, the hot pressing device comprises a fixing assembly, a plurality of pressing heads and a transmission assembly, the fixing assembly comprises a first fixing piece, a second fixing piece and a pressing head fixing piece which are stacked in the first direction; the plurality of pressure heads are movably arranged on the pressure head fixing piece; the transmission assembly comprises 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, one end of each first guide rod penetrates through the second fixing piece to be connected with one pressing head, the second guide rods are movably arranged on the second fixing piece, each second guide rod is connected with one pressing head, and the first guide rods and the second guide rods are arranged in a staggered mode in the first direction; on the section perpendicular to the first direction, at least part of the sectional area of the first guide rod and at least part of the sectional area of the second guide rod are larger than the sectional area of the pressing head. According to the technical scheme, the arrangement density of the pressing heads is increased, and the pressing efficiency is improved.

Description

Technical Field

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

[0002] In the assembly process of film materials and carriers, since there are pits on the carrier, after the film materials and the carrier are attached, the film materials need to be pressed into the pits of the carrier by a pressing device so that the film materials and the pit walls are tightly attached. However, the pits of the carrier are small in size and densely distributed. Due to the limitation of the pressing structure size, the pressing device cannot press all the pits at the same time, which seriously affects the processing efficiency. Summary of the invention

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

[0004] In order to achieve the above object, the present invention provides a hot pressing device, which 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 comprising a plurality of first guide rods and a plurality of second guide rods, one end of each of the first guide rods being movably disposed on the first fixing member, the other end of each of the first guide rods passing through the second fixing member and connected to a pressure head, one end of each of the second guide rods being movably disposed on the second fixing member, the other end of each of the second guide rods being connected to a pressure head, and the first guide rods and the second guide rods being staggered along 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.

[0005] In one embodiment, 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 cavities and the second movable cavities are staggered along the first direction, one end of each of the first guide rods is movably provided in one of the first movable cavities, the other end of each of the first guide rods is movably passed through the connecting cavity and is connected to the pressure head, and one end of each of the second guide rods is movably provided in the second movable cavity.

[0006] In one embodiment, the second active chamber and the connecting chamber are arranged alternately and at intervals along a second direction, and the second direction is arranged at an angle to the first direction; And / or, projections of the first active cavity and the second active cavity in the first direction at least partially overlap.

[0007] 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 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.

[0008] In one embodiment, the second guide rod 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.

[0009] In one embodiment, 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.

[0010] In one embodiment, 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.

[0011] 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.

[0012] 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.

[0013] 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; 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.

[0014] The hot pressing device in the technical solution of the present invention is stacked along the first direction by arranging the first fixing member, the second fixing member and the pressure head fixing member, and movably arranging the first guide rod and the second guide rod on the first fixing member and the second fixing member, respectively, so that the first fixing member and the second fixing member provide support and protection for the first guide rod and the second guide rod, respectively, and one end of each first guide rod passes through the second fixing member and is connected to a pressure head movably arranged on the pressure head fixing member, and one end of each second guide rod is connected to a pressure head movably arranged on the pressure head fixing member, and the pressure head can be driven to move relative to the pressure head fixing member by driving the first guide rod and the second guide rod to achieve the pressing of the material. At the same time, on 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 pressure head, so that the stability of driving the first guide rod and the second guide rod to drive the pressure head to move can be ensured. In order to increase the density of the pressure head, the first fixing member, the second fixing member and the pressure head fixing member are stacked and arranged along the first direction, so that the first guide rod and the second guide rod are arranged in layers in the first direction, and at the same time, the first guide rod and the second guide rod are staggered in the first direction, that is, the projections of the first guide rod and the second guide rod in the first direction are at least partially non-overlapping. In this way, it can be avoided that the first guide rod and the second guide rod hinder each other's connection with the pressure head, and then the density of the pressure head can be increased, so that the density of the pressure head can be consistent with the density of the holes on the carrier plate, and by driving all the first guide rods and the second guide rods, multiple pressure heads can be driven to press all the holes on the carrier plate at the same time, 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

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of a hot pressing device in one embodiment of the present invention; Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0017] Description of Figure Numbers: 100. Hot pressing device; 1. Fixing assembly; 11. First fixing member; 111. First movable chamber; 112. Airway; 12. Second fixing member; 121. Second movable chamber; 122. Connecting chamber; 13. Pressure head fixing member; 131. Fixing hole; 132. Vacuum chamber; 14. Third fixing member; 141. Air chamber; 2. Pressure head; 21. Limiting structure; 3. Transmission assembly; 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.

[0018] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0021] 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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] Please combine Figure 1 and Figure 2 As shown, the present invention proposes a hot pressing device 100, which includes a fixing assembly 1, a plurality of pressing heads 2 and a transmission assembly 3. The fixing assembly 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 arranged at intervals; the transmission assembly 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 passes 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, the other end of each second guide rod 32 is connected to a pressing head 2, and the first guide rod 31 and the second guide rod 32 are staggered along the first direction; wherein, on a cross section perpendicular to the first direction, at least a partial cross-sectional area of ​​the first guide rod 31 and at least a partial cross-sectional area of ​​the second guide rod 32 are larger than a cross-sectional area of ​​the pressing head 2.

[0023] In this embodiment, the first guide rod 31 and the second guide rod 32 are movably arranged on the first fixing member 11 and the second fixing member 12, respectively, so that the first fixing member 11 and the second fixing member 12 provide support and protection for the first guide rod 31 and the second guide rod 32, respectively, and one end of each first guide rod 31 passes through the second fixing member 12 and is connected to a pressure head 2 movably arranged on the pressure head fixing member 13, and one end of each second guide rod 32 is connected to a pressure head 2 movably arranged on the pressure head fixing member 13, and the pressure head 2 can be driven to move relative to the pressure head fixing member 13 by driving the first guide rod 31 and the second guide rod 32 to achieve the pressing of the material. At the same time, on the 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 pressure head 2, so that the stability of driving the first guide rod 31 and the second guide rod 32 to drive the pressure head 2 to move can be ensured. In order to increase the setting density of the pressure head 2, the first fixing member 11, the second fixing member 12 and the pressure head fixing member 13 are stacked in the first direction, so that the first guide rod 31 and the second guide rod 32 are arranged in layers in the first direction. At the same time, the first guide rod 31 and the second guide rod 32 are staggered in the first direction, that is, the projections of the first guide rod 31 and the second guide rod 32 in the first direction are at least partially non-overlapping. In this way, it can be avoided that the first guide rod 31 and the second guide rod 32 hinder each other from connecting with the pressure head 2, and then the setting density of the pressure head 2 can be increased, so that the setting density of the pressure head 2 can be consistent with the setting density of the holes on the carrier plate. By driving all the first guide rods 31 and the second guide rods 32, multiple pressure heads 2 can be driven to press all the holes on the carrier plate at the same time, and the whole plate pressing of the material is completed at one time, which effectively improves the pressing efficiency of the material.

[0024] It can be understood that in order for the pressure head 2 to accurately press the film material into the pit of the carrier plate, the size of the pressure head 2 should be consistent with the size of the pit. The size of the pit is very small, so the size of the pressure head 2 is also very small, and it is very difficult to directly drive the pressure head 2. By using the larger first guide rod 31 and the second guide rod 32 to drive the pressure head 2 to move, the driving difficulty of the pressure head 2 can be effectively reduced and the processing efficiency can be improved. However, due to the size limitation of the first guide rod 31 and the second guide rod 32, when only the first guide rod 31 or the second guide rod 32 is set, even if the distance between two adjacent first guide rods 31 or the adjacent second guide rods 32 is set very small, the distance between the two pressure heads 2 connected thereto is greater than the distance between two adjacent pits of the carrier plate. Therefore, the present application layers and staggers the first guide rod 31 and the second guide rod 32 so that the parts with larger cross-sectional dimensions of the first guide rod 31 and the second guide rod 32 avoid each other. In this way, at least one pressure head 2 connected to the second guide rod 32 can be added between the pressure heads 2 connected to the two adjacent first guide rods 31, thereby increasing the setting density of the pressure heads 2 and meeting the requirements of whole-plate pressing of the material. In the present application, each first guide rod 31 corresponds to a pressure head 2, and each second guide rod 32 corresponds to a pressure head 2. In this way, the connection structure between each pressure head 2 and the transmission assembly 3 is relatively independent. When the pressure head 2 needs to be repaired or replaced, the damaged pressure head 2 can be repaired or replaced in a targeted manner, reducing the difficulty of repairing or replacing the pressure head 2, thereby reducing the maintenance cost of the hot pressing device 100.

[0025] In actual implementation, the first direction in this application refers to Figure 1 Y-axis direction. The first guide rod 31 and the second guide rod 32 in this embodiment both extend toward the first direction to connect with the pressure head 2 set on the pressure head fixing member 13. In the projection along the first direction, the first fixing member 11 and the second fixing member 12 are both arranged in an array, and the array can be arranged in a rectangular, circular, triangular or other shape. 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 along the second direction and the third direction, and in the projection along the first direction, the second direction and the third direction are arranged vertically. The first fixing member 11 and the second fixing member 12 can be staggered only along the second direction, or staggered only along the third direction, or staggered along 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 set on the first fixing member 11 and the second fixing member 12 respectively by means of sliding holes or sliding rails, and the pressure head 2 can also be set on the pressure head fixing member 13 by means of sliding holes or sliding rails. At least a portion of the first guide rod 31 extends out of the first fixing member 11 to be connected to the pressing head 2, and at least a portion of the second guide rod 32 extends out of the second fixing member 12 to be connected to the pressing head 2. The first guide rod 31 and the second guide rod 32 can be driven by hydraulic pressure or pneumatic pressure to drive all the pressing heads 2 to move at the same time.

[0026] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the first fixing member 11 is provided with a plurality of first active cavities 111, the second fixing member 12 is provided with a plurality of second active cavities 121 and a plurality of connecting cavities 122, the first active cavities 111 and the second active cavities 121 are staggered along the first direction, one end of each first guide rod 31 is movably provided in a first active cavity 111, the other end of each first guide rod 31 is movably provided through a connecting cavity 122 and is connected to the pressure head 2, and one end of each second guide rod 32 is movably provided in a second active cavity 121.

[0027] In this embodiment, the first movable cavity 111 of the first fixing member 11 and the second movable cavity 121 of the second fixing member 12 are staggered along the first direction, that is, in the projection of the first movable cavity 111 and the second movable cavity 121 along the first direction, the first movable cavity 111 and the second movable cavity 121 are at least partially non-overlappingly arranged, so that the first guide rod 31 arranged in the first movable cavity 111 and the second guide rod 32 arranged in the second movable cavity 121 can be staggered along the first direction. The first guide rod 31 and the second guide rod 32 can move along the first movable cavity 111 and the second movable cavity 121 respectively, and the first movable cavity 111 and the second movable cavity 121 respectively limit and guide the first guide rod 31 and the second guide rod 32, so that the first guide rod 31 and the second guide rod 32 move along the preset direction to drive the pressing head 2 to move along the preset direction, so as to avoid the pressing head 2 from being offset, resulting in inadequate 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 connecting cavity 122 connected to the first active cavity 111. The connecting cavity 122 serves as a avoidance for the first guide rod 31 so that one end of the first guide rod 31 can pass through the second fixing member 12 and be connected to the pressure head 2.

[0028] It can be understood that the first active cavity 111 and the second active cavity 121 are respectively arranged to pass through the surfaces of the first fixing member 11 and the second fixing member 12 at one end close to the pressure head fixing member 13, and the connecting cavity 122 is arranged to pass through 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 active cavity 111 and passes through the connecting cavity 122 to be connected with the pressure head 2, and one end of the second guide rod 32 extends out of the second active cavity 121 to be connected with the pressure head 2.

[0029] In actual implementation, the first active cavity 111 is arranged in a one-to-one correspondence with the first guide rod 31, the connecting cavity 122 is also arranged in a one-to-one correspondence with the first guide rod 31, and the second active cavity 121 is arranged in a one-to-one correspondence with the second guide rod 32. The cavity wall of the active cavity and the first guide rod 31 are clearance-matched, the cavity wall of the connecting cavity 122 is also clearance-matched with the first guide rod 31, and the cavity wall of the second active cavity 121 and the second guide rod 32 are clearance-matched, so as to further ensure the limiting and guiding effect of the first active cavity 111 and the connecting cavity 122 on the first guide rod 31 and the limiting and guiding effect of the second active cavity 121 on the second guide rod 32, and maintain the movement resistance of the first guide rod 31 and the second guide rod 32 within a reasonable range.

[0030] Optionally, the first active chamber 111 and the second active chamber 121 are both extended 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 the cross section perpendicular to the first direction, the first guide rod 31 and the first active chamber 111 have the same cross-sectional shape and are not circular, and the second guide rod 32 and the second active chamber 121 have the same cross-sectional shape and are not circular, such as an ellipse or a polygon or other shape, 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 from rotating around the axis during the transmission process, thereby reducing the stability of driving the pressure head 2 to move and affecting the pressing effect on the material.

[0031] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the second active cavity 121 and the connecting cavity 122 are alternately and spaced along the second direction, and the second direction is arranged at an angle with the first direction. The first direction and the second direction can be respectively referred to Figure 1 The Y-axis direction and the X-axis direction.

[0032] In this embodiment, the second active cavity 121 and the connecting cavity 122 are alternately arranged along the second direction so that in the projection along the first direction, the positions of the connecting cavity 122 and the first active cavity 111 are correspondingly arranged, so that one end of the first guide rod 31 passes through the connecting cavity 122 along the second direction to connect with the pressure head 2.

[0033] Optionally, the connecting chamber 122 and the second movable chamber 121 are coaxially arranged along the first direction, so that the first guide rod 31 is extended and movable along the first direction, thereby preventing the first guide rod 31 from being deflected during the movement, resulting in an increase in the movement resistance of the first guide rod 31 in the second movable chamber 121 and the connecting chamber 122, and even causing the pressing position of the pressure head 2 to be deflected, resulting in uneven force on the film material and reduced pressing quality of the material.

[0034] It can be understood that the second direction in this application refers to Figure 1The second direction in this embodiment is any direction in the plane where the second fixing member 12 is located. In the projection along the first direction, the second active cavity 121 and the connecting cavity 122 are alternately arranged along the second direction, that is, the second active cavity 121 and the first active cavity 111 are alternately arranged along the second direction. Optionally, the second direction is arranged perpendicular to the first direction.

[0035] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the projections of the first active cavity 111 and the second active cavity 121 in the first direction at least partially overlap.

[0036] It can be understood that the second active cavity 121 does not need to completely avoid the first active cavity 111 in the projection in the first direction. The second active cavity 121 only needs to avoid the portion of the first guide rod 31 extending out of the first active cavity 111, and in the cross-section perpendicular to the first direction, the cross-sectional area of ​​the portion of the first guide rod 31 extending out of the first active cavity 111 can be smaller than the cross-sectional area of ​​the first active cavity 111, and the cross-sectional area of ​​the portion of the second guide rod 32 extending out of the second active cavity 121 can be smaller than the cross-sectional area of ​​the second active cavity 121. Therefore, the projections of the first active cavity 111 and the second active 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 pressure head 2, so that the pressure head 2 can meet the requirements of higher density pressing.

[0037] In one embodiment of the present invention, Figure 1 and Figure 2 As 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 movable chamber 111. One end of the first connecting rod 312 is connected to the first piston 311. The other end of the first connecting rod 312 moves through the connecting chamber 122 and is connected to the pressure head 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 pressure head 2.

[0038] In this embodiment, the first piston 311 and the pressure head 2 are connected by the first connecting rod 312, and the first piston 311 can drive the pressure head 2 to move through the first connecting rod 312. In actual implementation, the first piston 311 and the first connecting rod 312 can be set as one piece, or can be detachably connected by a structure such as a bolt or a buckle. The first piston 311 is matched with the cavity wall gap of the first movable cavity 111, and the first connecting rod 312 is penetrated in the connecting cavity 122 and matched with the cavity wall gap of the connecting cavity 122, so that the first piston 311 can drive the pressure head 2 to move along the preset direction through the first connecting rod 312, thereby improving the stability of the first piston 311 and the first connecting rod 312 when moving. The first connecting rod 312 and the pressure head 2 can be detachably connected by a structure such as a bolt or a buckle, so as to facilitate the maintenance or replacement of the pressure head 2. The first piston 311 can be driven by hydraulic pressure or pneumatic pressure, and then drive the pressure head 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 a material with a certain rigidity, such as stainless steel or aluminum alloy, to ensure the driving accuracy of the pressure head 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 pressure head 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 pressure head 2.

[0039] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, each second guide rod 32 includes a second piston 321 and a second connecting rod 322. The second piston 321 is movably arranged in the second movable chamber 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 pressure head 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 pressure head 2.

[0040] In this embodiment, the second piston 321 and the pressure head 2 are connected by a second connecting rod 322. The second piston 321 can drive the pressure head 2 to move through the second connecting rod 322. In actual implementation, the second piston 321 and the second connecting rod 322 can be arranged in one piece, or can be detachably connected by structures such as bolts or buckles. The second piston 321 is matched with the cavity wall gap 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 arranged in one piece, or the second piston 321 and the second connecting rod 322 can be detachably connected by structures such as bolts or buckles. The second connecting rod 322 and the pressure head 2 can be detachably connected by structures such as bolts or buckles to facilitate the maintenance or replacement of the pressure head 2. The second piston 321 can be driven by hydraulic pressure or pneumatic pressure, and then drive the pressure head 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 pressure head 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 pressure head 2, so that the second piston 321 is more stable when moving, and the pressing quality of the pressure head 2 is improved.

[0041] Optionally, in the 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 the 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 pressure head 2, and the cross-sectional area of ​​the connecting cavity 122 is equivalent to the cross-sectional area of ​​the first connecting rod 312, so that the two adjacent second active cavities 121 can be arranged closer, thereby increasing the arrangement density of the pressure head 2.

[0042] On 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. On 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 pressure head 2, so as to facilitate the connection between the second connecting rod 322 and the pressure head 2, and at the same time, it can be avoided that the spacing between the adjacent second connecting rod 322 and the first connecting rod 312 is too small, which increases the difficulty of setting the first connecting rod 312 and the second connecting rod 322, and reduces the transmission stability of the first connecting rod 312 and the second connecting rod 322.

[0043] In one embodiment of the present invention, Figure 1 and Figure 2As shown, a first storage groove is provided on the peripheral side of the first piston 311, and the first storage groove is used to store lubricating substances. The portion of the first connecting rod 312 extending out of the first active cavity 111 is sleeved with a first sealing ring 313, and the first sealing ring 313 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 321, and the second storage groove is used to store lubricating substances. The portion of the second connecting rod 322 extending out of the second active cavity 121 is sleeved with a second sealing ring 323, and the second sealing ring 323 is used to prevent leakage of the lubricating substances.

[0044] In this embodiment, the first piston 311 and the second piston 321 are respectively provided with a first storage groove and a second storage groove on their circumferential sides, and the cavity wall of the first active cavity 111 and the cavity wall of the second active cavity 121 are respectively covered with the notch of the first storage groove and the notch of the second storage groove, and the first storage groove and the second storage groove are filled with lubricating material to reduce the friction resistance between the first piston 311 and the cavity wall of the first active cavity 111 and the friction resistance between the second piston 321 and the cavity wall of the second active cavity 121, so as to avoid stagnation of the first piston 311 and the second piston 321 when moving, thereby affecting the pressing quality of the pressure head 2.

[0045] In actual implementation, one or more first storage grooves and second storage grooves may be provided, and multiple first storage grooves are arranged at intervals along the circumference of the first piston 311, and multiple second storage grooves are arranged at intervals along the circumference of the second piston 321. The number of the first storage groove and the second storage groove may be one, two, three, four or other numbers.

[0046] It is understandable that the lubricating substance may be grease or carbon powder, etc., which is not specifically limited here. In order to prevent the lubricating substance from leaking from the first active cavity 111 and the second active cavity 121, a sealing ring is provided at the cavity opening of the first active cavity 111 and the second active cavity 121 near one end of the pressure head 2. The sealing ring is located between the inner wall of the cavity opening of the first active cavity 111 and the first connecting rod 312 and between the inner wall of the cavity opening of the second active cavity 121 and the second connecting rod 322 to prevent the lubricating substance from leaking from the inner wall of the cavity opening of the first active cavity 111 and the first connecting rod 312 and the inner wall of the cavity opening of the second active cavity 121, causing the lubricating substance to contaminate the hot pressing device 100, or even drip onto the material to contaminate the material.

[0047] In this embodiment, the portion of the first connecting rod 312 extending out of the first active cavity 111 is sleeved with a first sealing ring 313, and the portion of the second connecting rod 322 extending out of the second active cavity 121 is sleeved with a second sealing ring 323. The arrangement 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 pressure head 2, and dripping from the gap between the pressure head 2 and the pressure head fixing part 13 onto the material and contaminating the material.

[0048] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the hot pressing device 100 also includes a pressure regulating gas source 4, and the fixing assembly 1 also includes a third fixing member 14, the third fixing member 14 is connected to the 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 channel 112 connected to the second active cavity 121, the air cavity 141 is connected to the air channel 112 and the first active cavity 111, and the output end of the pressure regulating gas source 4 is connected to the air cavity 141.

[0049] In this embodiment, the pressure regulating gas source 4 is connected to the first active cavity 111 and the second active 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, and the output end of the pressure regulating gas source 4 is connected to the inlet of the air cavity 141. The air cavity 141 is provided with an outlet corresponding to each of the first active cavity 111 and the second active cavity 121. Since the third fixing member 14 is arranged on the side of the first fixing member 11 away from the second fixing member 12, the air cavity 141 can be directly connected to the first active cavity 111, and connected to the second active cavity 121 through the air channel 112 on the first fixing member 11. In this way, the pressure regulating gas source 4 can simultaneously drive all the first guide rods 31 and the second guide rods 32 to drive all the pressing heads 2 to move, so as to press the material into the whole plate, and at the same time, it can also be beneficial to the synchronization and pressure consistency of all the pressing heads 2, thereby improving the pressing quality of the pressing heads 2.

[0050] It can be understood that the air channel 112 is arranged in a one-to-one correspondence with the second active cavity 121. Optionally, the air channel 112 and the first active cavity 111 are arranged alternately and spaced along the second direction. In the cross section of the first direction, the cross-sectional area of ​​the air channel 112 is smaller than the cross-sectional area of ​​the second active cavity 121, so as to reduce the distance between two adjacent first active cavities 111, increase the arrangement density of the first guide rod 31, and thus ensure the arrangement density of the pressure head 2. The first active cavity 111 and the second active cavity 121 are both open at both ends, and the airway 112 is arranged to penetrate the two 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, and the sealing rings are arranged around the outlet of the air cavity 141 and the first active cavity 111 or the airway 112. A plurality of sealing rings are arranged between the first fixing member 11 and the second fixing member 12, and the sealing rings are arranged around the airway 112 or the second active cavity 121; or, a sealing gasket is arranged between the third fixing member 14 and the first fixing member 11, and the sealing gasket is provided with a connecting hole corresponding to the outlet of the air cavity 141 and the airway 112, and a connecting hole is provided corresponding to the outlet of the air cavity 141 and the first active cavity 111, and a sealing gasket is arranged between the first fixing member 11 and the second fixing member 12, and the sealing gasket is provided with a connecting hole corresponding to the airway 112 and the second active cavity 121.

[0051] In actual implementation, the pressure regulating gas 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 by supplying and exhausting air, thereby driving the pressure head 2 to descend or lift up, and realizing multiple pressing. The pressure regulating gas source 4 also includes an electrical proportional valve arranged at the output end of the air pump or the compressor to accurately control the flow rate of the air flow, thereby accurately controlling the pressure transmitted to the pressure head 2 by the transmission component 3, and effectively ensuring the pressing quality of the pressure head 2.

[0052] In actual implementation, the hot pressing device 100 also includes a heating module, such as a heating tube, a heating plate, a heating wire, etc. The heating module can be arranged on the third fixing member 14, or a containing groove is arranged on the third fixing member 14, and the heating module is arranged in the containing groove. The heating module heats 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 by heating the third fixing member 14, and then heats the pressing head 2, so that the pressing head 2 can soften and activate the film material when pressing the material, and the film material and the pit wall on the carrier plate are more closely attached, effectively improving the pressing quality. Optionally, a heating element for heating gas, such as a heating tube, a heating plate, a heating wire, etc., can be arranged at the input end of the pressure regulating gas source 4 to preheat the gas entering the hot pressing device 100 to prevent the gas from taking away the heat of the hot pressing device 100 and affecting the pressing effect.

[0053] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the hot pressing device 100 also includes a guide member 5, which is arranged between the second fixing member 12 and the pressing head fixing member 13. The guide member 5 is provided with a plurality of guide holes 51. Each first guide rod 31 is passed through a guide hole 51 and is connected to a pressing head 2. Each second guide rod 32 is passed through a guide hole 51 and is connected to a pressing head 2.

[0054] In this embodiment, the guide member 5 is provided with a guide hole 51 for providing guidance for the first guide rod 31 and the second guide rod 32. The setting of the guide hole 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 transfer the pressure to the pressing head 2, thereby ensuring the pressing quality of the pressing head 2.

[0055] Optionally, the guide hole 51 is coaxially arranged with the first active cavity 111 or the second active cavity 121, and is arranged one-to-one with the pressure head 2. The guide hole 51 is used for 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 guide member 5 is connected to the second fixing member 12 and is stacked with the second fixing member 12. The first connecting rod 312 and the second connecting rod 322 are passed through the guide hole 51.

[0056] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the pressure head fixing member 13 is provided with a vacuum chamber 132 and a fixing hole 131 connected to the vacuum chamber 132. One end of the pressure head 2 is movable 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 also includes a vacuum air source 7, and the output end of the vacuum air source 7 is connected to the vacuum chamber 132.

[0057] In this embodiment, the pressure head 2 is limited in the fixing hole 131, and the fixing hole 131 guides the pressure head 2 to ensure that the pressure head 2 can move up and down accurately. The fixing holes 131 are arranged one by one with the pressure head 2, and the vacuum chamber 132 is located on the side of the fixing hole 131 close to the second fixing member 12, and is connected with all the fixing holes 131. The vacuum air source 7 is connected with the vacuum chamber 132, and continuously pumps air out of the vacuum chamber 132, so that the worn debris of the first guide rod 31, the second guide rod 32 and the pressure head 2 or the lubricating substance or other impurities coated on the first guide rod 31, the second guide rod 32 and the pressure head 2 can be adsorbed, and the debris, lubricating substance or other impurities can be prevented from leaking from the gap between the pressure head 2 and the pressure head fixing member 13, falling onto the material, and contaminating the material. Optionally, the vacuum air source 7 can be an air pump or a compressor, which is not specifically limited here.

[0058] In one embodiment, the two ends of the ram 2 extend from the two ports of the fixing hole 131, and the protruding parts at both ends of the ram 2 are provided with a limiting structure 21, and the limiting structure 21 can cooperate with the ram fixing member 13 to limit the rising stroke and the falling stroke of the ram 2 to ensure the consistency of the stroke of all rams 2. The limiting structure 21 at one end of the ram 2 away from the transmission assembly 3 can also cooperate with the carrier to further limit the descending stroke of the ram 2. It can be understood that the upper surface of the limiting structure 21 can cooperate with the ram fixing member 13 to limit the lifting height of the ram 2, and the lower surface of the limiting structure 21 can cooperate with the surface of the carrier to limit the depth of the ram 2 pressed into the carrier pit. Optionally, the limiting structure 21 can be a protrusion arranged on the circumference of the ram 2, and the protrusion can be arranged in multiple intervals along the circumference of the ram 2, or arranged in a ring shape. The limiting structure 21 can be movably arranged on the ram 2, which is not specifically limited here.

[0059] In actual implementation, the pressure head 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 pressure head 2. The axial direction of the pressure head 2, the first guide rod 31 and the second guide rod 32 is the first direction, and the pressure head 2 rises or falls along the first direction.

[0060] In one embodiment of the present invention, Figure 1 and Figure 2As shown, the hot pressing device 100 also includes a mounting member 6, a third fixing member 14, a first fixing member 11, a second fixing member 12, a guide member 5, a mounting member 6 and a pressure head fixing member 13 are stacked in sequence. The mounting member 6 serves as a mounting platform for the entire hot pressing device 100, and is used for connecting the hot pressing device 100 with other mechanisms. The mounting member 6 is provided with a avoidance hole 61 corresponding to each first guide rod 31 and each second guide rod 32, so that one end of the first guide rod 31 and one end of the second guide rod 32 pass through the mounting member 6 to connect with the pressure head 2. The avoidance hole 61 can be clearance-matched with the first guide rod 31 and the second guide rod 32, and further guides 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 pressure head fixing member 13, and the vacuum air source 7 is arranged on the mounting member 6 and communicated with the vacuum chamber 132.

[0061] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are 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 comprising a plurality of first guide rods and a plurality of second guide rods, one end of each of the first guide rods being movably disposed on the first fixing member, the other end of each of the first guide rods passing through the second fixing member and connected to a pressure head, one end of each of the second guide rods being movably disposed on the second fixing member, the other end of each of the second guide rods being connected to a pressure head, and the first guide rods and the second guide rods being staggered along 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 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 cavities and the second movable cavities are staggered along the first direction, one end of each of the first guide rods is movably provided in one of the first movable cavities, the other end of each of the first guide rods movably passes through one of the connecting cavities and is connected to the pressure head, and one end of each of the second guide rods is movably provided in one of the second movable cavities.

3. The hot pressing device according to claim 2, characterized in that: The second active chambers and the connecting chambers are arranged alternately and at intervals along a second direction, and the second direction is arranged at an angle to the first direction; And / or, projections of the first active cavity and the second active cavity in the first direction at least partially overlap.

4. The hot pressing device according to claim 2, 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.

5. The hot pressing device according to claim 4, 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.

6. The hot pressing device according to claim 5, 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.

7. The hot pressing device according to claim 5, 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.

8. The hot pressing device according to claim 2, 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.

9. 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.

10. The hot pressing device according to any one of claims 1 to 9, 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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