Uniform force pressure maintaining device

Abstract

The utility model relates to the technical field of flexible circuit boards and pressure swing adsorption and temperature swing adsorption pressing, in particular to a uniform-force pressure maintaining device which comprises an upper die provided with a plurality of pressure maintaining mechanisms and a lower die used for placing materials to be processed, and when the upper die and the lower die are closed, the pressure maintaining mechanisms press the materials to be processed at corresponding positions in a point mode. The pressure maintaining mechanism comprises a pressure maintaining head and an elastic piece arranged on the top of the pressure maintaining head, the compression amount of the elastic piece is changed through an adjusting piece, and the pressure applied by the pressure maintaining head to the to-be-machined material is changed. A plurality of pressure maintaining mechanisms are arranged on the upper die, each pressure maintaining mechanism comprises a pressure maintaining head, a pressure sensor, an elastic piece and an adjusting piece, the telescopic amount of the elastic pieces is adjusted through screwing of the adjusting pieces, the height of the bottom pressure maintaining head and the magnitude of pressure applied to the outside are changed, and therefore the height consistency and the pressure consistency of all the pressure maintaining heads are kept; and the pressure can be flexibly adjusted according to the pressure requirement of the to-be-processed material, and the compatibility is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible circuit board and pressure swing adsorption and temperature swing adsorption press technology field, especially relate to even force pressure maintaining device. BACKGROUND

[0002] Flexible circuit board (Flexible Printed Circuit, FPC board for short) is made of polyimide or polyester film as base material and is a kind of highly reliable, excellent flexible printed circuit board with the characteristics of high wiring density, light weight and thin thickness.

[0003] In the reinforcing sheet production process currently used in flexible board, glue is usually covered first and then punched. In the process of glue sticking operation using pressure swing adsorption (PSA) and temperature swing adsorption (TSA) technology, the flexible board is usually loaded onto a jig, and the flexible board is firmly bonded with the back glue through upper die pressing to realize pressure maintaining. A one-piece flexible board is small in size and light in weight, and multiple flexible boards are placed on the jig plate after being pasted with back glue for pressing, but multiple pressing heads are arranged in an array in the upper die structure, corresponding to the multiple back glue pieces of one-time loading, and due to different specifications of the driving members of the pressing heads, different pressures are applied, and there are problems such as height deviation between the pressing heads, which can easily lead to uneven pressing quality between the material pieces under the same pressing action.

[0004] Based on the problems in the prior art, the utility model provides an even force pressure maintaining device. UTILITY MODEL CONTENTS

[0005] The utility model aims at: providing even force pressure maintaining device, to solve the technical problems of inconsistent height and inconsistent pressure of pressure maintaining head in the prior art.

[0006] The technical scheme of the utility model is: even force pressure maintaining device, comprising an upper die provided with a plurality of pressure maintaining mechanisms, and a lower die for placing material to be processed, when the upper die and the lower die are closed, the pressure maintaining mechanism point-presses the material to be processed at the corresponding position;

[0007] Preferably, the elastic member is a spring, the axis of the spring is consistent with the force direction of the pressure maintaining head, the adjusting member comprises a screw rod and a screw, the upper and lower ends of the elastic member are connected to a workpiece and a base, the base is fixedly connected to the pressure maintaining head through a pressure sensor, the elastic member is coaxially sleeved with the screw rod, and the screw is installed on the rod body of the screw rod protruding through the top of the workpiece.

[0008] Preferably, the elastic member is a spring, the axis of the spring is consistent with the force direction of the pressure maintaining head, the adjusting member comprises a screw rod and a screw, the upper and lower ends of the elastic member are connected to a workpiece and a base, the base is fixedly connected to the pressure maintaining head through a pressure sensor, the elastic member is coaxially sleeved with the screw rod, and the screw is installed on the rod body of the screw rod protruding through the top of the workpiece.

[0009] Preferably, the workpiece is connected and mounted on a slider of a linear guide rail, the extension direction of which is parallel to the force application direction of the pressure holding head.

[0010] Preferably, the upper mold includes a pair of parallel first mounting plates and second mounting plates. The first support plate and the second mounting plates are connected by support guide posts. Positioning posts are installed at the four corners of the bottom of the second mounting plate. When the mold is closed, the positioning posts are inserted into the guide sleeves on the lower mold. The bottom end of the positioning posts is lower than the lowest point of the pressure holding head.

[0011] Preferably, the lower mold includes a fixture plate and a carrier plate. The fixture plate is provided with contoured grooves that correspond one-to-one with the pressure holding heads. The fixture plate is stacked on the bottom carrier plate, and the guide sleeve is disposed on the carrier plate or the fixture plate.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This invention features multiple pressure-holding mechanisms on the upper mold. Each pressure-holding mechanism includes a pressure-holding head, a pressure sensor, an elastic element, and an adjusting element. By rotating the adjusting element, the extension and retraction of the elastic element can be adjusted, thereby changing the height of the bottom pressure-holding head and the applied pressure, thus maintaining consistent height and pressure across all pressure-holding heads. Furthermore, it allows for flexible adjustment of the pressure according to the pressure requirements of the material being processed, resulting in greater compatibility. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the force equalization and pressure holding device described in this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the upper mold described in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the pressure-holding mechanism in one embodiment of the present invention;

[0018] Figure 4 This is an exploded view of the pressure-holding mechanism in another embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the lower mold described in this utility model;

[0020] Among them: 1. Upper mold;

[0021] 11. First mounting plate; 12. Second mounting plate; 13. Support guide post; 14. Positioning post;

[0022] 2. Lower mold;

[0023] 21, guide sleeve, 22, jig plate, 23, carrier plate; 24, profiling groove;

[0024] 3, pressure maintaining mechanism;

[0025] 31, pressure maintaining head, 32, elastic member, 33, adjusting member, 34, pressure sensor, 35, linear guide rail; 331, screw; 332, screw rod; 333, workpiece; 334, base. DETAILED DESCRIPTION

[0026] The content of the utility model will be further described in detail in combination with specific embodiments:

[0027] As Figure 1 shown, the uniform force pressure maintaining device comprises an upper die 1 and a lower die 2, the upper die 1 is provided with a plurality of pressure maintaining mechanisms 3, the workpiece to be processed is placed on the jig plate 22 of the lower die 2, and the jig plate 22 is installed on the carrier plate 23.

[0028] The jig plate 22 is provided with a profiling groove 24 corresponding to the pressure maintaining head 31, and the jig plate 22 is stacked on the carrier plate 23 at the bottom. When the size of the workpiece to be processed is small, the pressure maintaining mechanism 3 corresponds to the workpiece to be processed one by one, and when the size of the workpiece to be processed is large, the pressure maintaining mechanism 3 corresponds to the pressing points on the workpiece to be processed one by one.

[0029] Referring to the drawings Figure 2 The upper die 1 comprises a pair of first mounting plates 11 and second mounting plates 12 arranged in parallel, the first mounting plates 11 and the second mounting plates 12 are connected through support guide columns 13, the positioning columns 14 are installed at the bottom of the four corners of the second mounting plates 12, the bottom end of the positioning columns 14 is lower than the lowest point of the pressure maintaining mechanism 3, and when contacting the ground, the positioning columns 14 contact the ground first, thereby protecting the pressure maintaining head 31 of the pressure maintaining mechanism 3.

[0030] Referring to the drawings Figure 3 Referring to the drawings Figure 1 Referring to the drawings Figure 5 As shown in the drawings, when the upper die 1 and the lower die 2 are closed, the positioning columns 14 on the upper die 1 are connected to the guide sleeves 21 on the carrier plate 23 in a plug-in manner for guiding, and the pressure maintaining mechanism 3 contacts and presses the workpiece to be processed at the corresponding position.

[0031] Specifically, the pressure maintaining mechanism 3 comprises a pressure maintaining head 31, the pressure maintaining head 31 is made of hard plastic material or metal material, and the pressure maintaining head 31 is not easy to deform. A pressure sensor 34 and an elastic member 32 are arranged at the top of the pressure maintaining head 31, the pressure maintaining head 31 is fixedly installed at the bottom of the pressure sensor 34, and the elastic member 32 is arranged at the top of the pressure sensor 34. The compression amount of the elastic member 32 is changed through the adjusting member 33, so that the pressure applied by the pressure maintaining head 31 to the workpiece to be processed during the closing of the die is adjusted.

[0032] As shown in the accompanying Figure 3 and the accompanying Figure 4 , it shows a schematic diagram of a pressure maintaining mechanism 3 provided by the embodiment of the utility model, the relative position relationship or connection order of the pressure sensor 34, the adjusting part 33 and the elastic part 32 listed in the embodiment is only one way in numerous embodiments, not representing the unique connection order or relative position relationship, in the actual application process, the connection order and the relative position shown in the embodiment or the drawing can be implemented.

[0033] Referring to the accompanying Figure 3 , the elastic part 32 adopts a spring, the axis of the spring is consistent with the force direction of the pressure maintaining head 31, the spring shown in the drawing is vertically arranged, the adjusting part 33 includes a screw rod 332 and a screw 331, the top end of the elastic part 32 is fixed through a boss-shaped workpiece 333, and the bottom end of the elastic part 32 is fixedly installed through a base 334. The workpiece 333 is L-shaped as a whole, the pressure sensor 34 is installed in the inner surrounding area of the workpiece 333, the top end of the elastic part 32 is fixedly connected on the pressure sensor 34, and the screw 331 is installed on the rod body of the screw rod 332 penetrating and protruding the top workpiece 333.

[0034] The workpiece 333, the pressure sensor 34, the base 334 and the pressure maintaining head 31 are arranged along the vertical direction, a linear guide rail 35 is arranged at the side, the workpiece 333 is connected and installed on the sliding block of the linear guide rail 35, and the extension direction of the linear guide rail 35 is parallel to the force direction of the pressure maintaining head 31.

[0035] As shown in the accompanying Figure 3 , in one embodiment or other implementation mode, the two ends of the elastic part 32 are directly fixedly installed on the workpiece 333 and the base 334, the screw 331 is tightly attached to the upper surface of the workpiece 333, the screw 331 is screwed, the top workpiece 333 and the screw 331 move together along the screw rod 332 (with threads), the elastic part 32 is pressed down, and the pressure of the bottom pressure maintaining head 31 to the outside is increased.

[0036] And, due to the compression of the elastic part 32, the length is shortened, not only the pressure applied by the bottom pressure maintaining head 31 to the outside can be adjusted, but also the height of the pressure maintaining head 31 can be adjusted, the machining error is compensated, the height consistency between the pressure maintaining mechanisms 3 is maintained, and the pressure applied by the pressure maintaining mechanism 3 to the outside is consistent.

[0037] As shown in the accompanying Figure 4 , in another embodiment or other implementation mode, the elastic part 32 is coaxially sleeved with the screw rod 332, the two ends of the elastic part 32 are fixed on the screw rod 332, the screw rod 332 penetrates the workpiece 333, and the screw 331 is fixed on the screw rod 332, taking the screw 331 as the force point, the screw rod 332 (the screw rod has two segments and is connected together in section) is screwed, the compression amount of the elastic part 32 thereon is changed, and thus the pressure of the bottom pressure maintaining head 31 to the outside is changed.

[0038] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the examples should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. An equalizing pressure retaining device characterized by, The application relates to a mold device, which comprises an upper mold (1) provided with a plurality of pressure maintaining mechanisms (3) and a lower mold (2) for placing materials to be processed, wherein the upper mold (1) and the lower mold (2) are combined, and the pressure maintaining mechanisms (3) point-press the materials to be processed in corresponding positions. The pressure maintaining mechanism (3) comprises a pressure maintaining head (31) and an elastic member (32) arranged on the top of the pressure maintaining head (31), and the compression amount of the elastic member (32) is changed through an adjusting member (33), so that the pressure applied by the pressure maintaining head (31) to the materials to be processed during the combination of the molds is adjusted.

2. The equalizing pressure device according to claim 1, characterized by The elastic member (32) is a spring, the axis of the spring is consistent with the force applying direction of the pressure maintaining head (31), the adjusting member (33) comprises a screw rod (332) and a screw (331), the upper and lower ends of the elastic member (32) are connected with a workpiece (333) and a base (334), the base (334) is fixedly connected with the pressure maintaining head (31) through a pressure sensor (34), the elastic member (32) is coaxially sleeved with the screw rod (332), and the screw (331) is arranged on the rod body of the screw rod (332) penetrating through and protruding from the top of the workpiece (333).

3. The equalizing device of claim 2, wherein The workpiece (333) is connected and arranged on a sliding block of a linear guide rail (35), and the extending direction of the linear guide rail (35) is parallel to the force applying direction of the pressure maintaining head (31).

4. The equalizing device of claim 1, wherein The upper mold (1) comprises a pair of first mounting plates (11) and second mounting plates (12) arranged in parallel, the first mounting plates (11) and the second mounting plates (12) are connected through supporting guide columns (13), positioning columns (14) are arranged on the bottom of the second mounting plates (12) at four corners, the positioning columns (14) are connected with guide sleeves (21) on the lower mold (2) in a plug-in mode during the combination of the molds, and the bottom end of the positioning columns (14) is lower than the lowest point of the pressure maintaining head (31).

5. The equalizing device of claim 4, wherein The lower mold (2) comprises a jig plate (22) and a carrier plate (23), the jig plate (22) is provided with a plurality of profiling grooves (24) corresponding to the pressure maintaining head (31), the jig plate (22) is stacked on the carrier plate (23) at the bottom, and the guide sleeve (21) is arranged on the carrier plate (23) or the jig plate (22).

Images