Single-point constant-force pressing device

Abstract

The utility model relates to the technical field of production equipment of flexible printed circuit boards, in particular to a single-point constant-force pressing device which comprises an upper die single plate and a plurality of pressing plates arranged in an array mode, and each pressing plate is correspondingly and fixedly installed on the upper die single plate through a pressing head power piece. A single-point pressing head is installed at the bottom of the pressing plate, and the pressing plate moves in the direction close to and away from the lower die mechanism through a pressing head power piece so as to press materials. The upper die single plate is arranged to be a confluence plate, airflow channels are distributed in the upper die single plate, an air path distributor connected with an air path of the pressure head power piece is installed on the upper die single plate, and the air path distributor is provided with an electric proportional valve to control pressure applied by the pressure head power piece to the pressing plate. According to the utility model, the gas circuit distributor is arranged on the upper die single plate on which the pressing plate is mounted, and the electric proportional valve is arranged to control the pressure applied by the pressing head power piece to the pressing plate, so that the pressure output to materials by all single-point pressing heads is kept consistent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production equipment technical field of flexible printed circuit board, especially in single point constant -force compression device. BACKGROUND

[0002] Flexible printed circuit board is with polyimide or polyester film as base material makes a kind of highly reliable, excellent flexible printed circuit board, simply called soft board or FPCB, with the characteristics of high wiring density, light weight, thin thickness.

[0003] In the reinforcing sheet production process used in the current flexible board, glue is usually covered first and then punched. In the glue sticking operation, the flexible board is usually fed to the jig, and the upper die is pressed to make the flexible board and the back glue adhere firmly. A piece of flexible board is small in size and light in weight, and multiple flexible boards are placed on the jig plate after being stuck with back glue and then pressed, but multiple pressing heads are arranged in array in the upper die structure, corresponding to the pressing of multiple back glue pieces in one feeding, due to different specifications of the driving members of the pressing heads, different pressures applied, and height deviation between the pressing heads, etc. The pressing quality of the material pieces is uneven under the same pressing action.

[0004] Based on the problems in the prior art, the utility model provides a single point constant force compression device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a single point constant force compression device to solve the technical problem that the pressures provided by multiple single point pressing heads are different, resulting in inconsistent pressing quality of materials in the prior art.

[0006] The technical scheme of the utility model is: a single point constant force compression device, comprising an upper die single plate and a plurality of pressing plates arranged in array, each pressing plate is fixedly installed on the upper die single plate through a pressing head power member; a single point pressing head is installed at the bottom of the pressing plate, and the pressing plate moves towards and away from the direction of the lower die mechanism through the pressing head power member to press the material;

[0007] The upper die single plate is arranged as a bus plate, and airflow channels are distributed inside, a gas path distributor connected with the pressing head power member gas path is installed on the upper die single plate, and the gas path distributor is configured with an electrical proportional valve to control the pressure applied to the pressing plate by the pressing head power member.

[0008] Preferably, the pressing head power member adopts a combination of air cylinder and linear slide rail, including pen-shaped air cylinder, base and support frame.

[0009] The support frame is at least a half-enclosing structure, a pressure sensor is connected to the top of the pen-shaped air cylinder through an air cylinder installation adapter plate, the pressure sensor is fixedly installed in the enclosing area of the support frame, the top of the support frame is fixedly connected with the upper die single plate, and the base is in sliding connection with the support frame and can adjust the height of the single-point pressing head.

[0010] Preferably, the base is in a T shape as a whole, comprising a horizontal seat plate and a vertical connecting plate, the pen-shaped air cylinder is fixedly installed on a fixed socket on the vertical connecting plate through an air cylinder floating joint, and the support frame slides along the vertical connecting plate through a straight line sliding rail.

[0011] Preferably, the lower die mechanism comprises a carrier plate and a jig plate, a lower die silica gel is arranged on the carrier plate, the lower die silica gel is extruded through a profiling groove on the jig plate and cooperates with the single-point pressing head.

[0012] Preferably, a heating plate is arranged at the top of the pressing plate, and the heating plate is fixedly connected with the base through a heat insulation plate.

[0013] Compared with the prior art, the advantages of the single-point constant force pressing device are as follows:

[0014] The air path distributor is arranged on the upper die single plate of the installation pressing plate, and an electrical proportional valve is configured, so that the pressure exerted on the pressing plate by the pressing head power member is controlled, thereby keeping the pressure output to the material by all single-point pressing heads consistent, and greatly reducing the pressing quality difference between the materials under the same pressing action. BRIEF DESCRIPTION OF DRAWINGS

[0015] The single-point constant force pressing device will be further described below in combination with the drawings and embodiments:

[0016] Figure 1 It is a three-dimensional structure schematic view of the single-point constant force pressing device;

[0017] Figure 2 It is an axial side schematic view of the upper die mechanism of the pressing device;

[0018] Figure 3 It is a schematic view of the lower die mechanism of the pressing device;

[0019] Figure 4 It is a structure schematic view of the pressing head power member;

[0020] Wherein: 1, pressing head power member; 2, pressing plate; 3, upper die single plate; 4, carrier plate; 5, air path distributor; 6, electrical proportional valve; 7, heating plate; 8, heat insulation plate; 9, jig plate; 10, lower die silica gel;

[0021] 11, base; 12, pen-shaped cylinder; 13, support frame; 14, cylinder mounting adapter plate; 15, pressure sensor; 16, cylinder floating joint; 17, linear slide; 20, single-point pressure head;

[0022] 111, horizontal seat plate; 112, vertical connecting plate; 113, fixed socket. DETAILED DESCRIPTION

[0023] The content of the present application will be further described in detail below in combination with specific embodiments:

[0024] As shown in the drawings, the present application provides a single-point constant force pressing device, which comprises an upper die mechanism and a lower die mechanism. Figure 1 The upper die mechanism comprises an upper die single plate 3, and a plurality of pressing plates 2 are arranged at the bottom of the upper die single plate 3, and each pressing plate 2 is fixedly installed on the upper die single plate 3 through a pressure head power piece 1.

[0025] Referring to the drawings, Figure 1 The lower die mechanism comprises a carrier plate 4 and a jig plate 9 arranged in a stack, and a single-point pressure head 20 is installed at the bottom of the pressing plate 2. The pressing plate 2 moves in the direction of approaching and moving away from the lower die mechanism through the pressure head power piece 1 to press the material; as shown in the drawings, Figure 3 A lower die silica gel 10 for supporting the pad is arranged on the carrier plate 4; a plurality of silica gel blocks are arranged on the lower die silica gel 10, and the lower die silica gel 10 passes through the profiling groove on the jig plate 9 and cooperates with the single-point pressure head 20 to extrude the material. The number and position of the single-point pressure head 20, the pressing plate 2 and the pressure head power piece 1 are one-to-one corresponding.

[0026] Among them, referring to the drawings, Figure 2 The upper die single plate 3 is arranged as a bus plate, and airflow channels (not shown in the drawings) are distributed inside. An air path distributor 5 connected with the pressure head power piece 1 is installed on the upper die single plate 3, and the air path distributor 5 is configured with an electrical proportional valve 6, and the air path distributor 5 is in communication with the airflow channels in the upper die single plate 3.

[0027] The pressure head power piece 1 can adopt a combination of a motor and a linear module, or a combination of a cylinder and a linear slide. In one or other embodiments, the pressure head power piece 1 adopts a combination of a cylinder and a linear slide.

[0028] Specifically, the pressure head power piece 1 comprises a pen-shaped cylinder 12, a base 11 and a support frame 13.

[0029] The pen-shaped cylinder 12 is at least a semi-enclosed structure, as shown in the drawings, Figure 4As shown in the figure, the support frame 13 is L-shaped (may be U-shaped) as a whole, the pen-shaped cylinder 12 is connected with a pressure sensor 15 at the top thereof through a cylinder mounting adapter plate 14, the pressure sensor 15 is fixedly installed in the surrounding area of the support frame 13, the top of the support frame 13 is fixedly connected with the upper die single plate 3, the pen-shaped cylinder 12 is operated to drive the base 11, the pressing plate 2 and the single-point pressing head 20 at the bottom to move and press the material, and the pressure applied by the pressing head power component 1 to the pressing plate 2 is controlled through the electric proportional valve 6.

[0030] In detail, the base 11 is T-shaped as a whole, including a horizontal seat plate 111 and a vertical connecting plate 112, the pen-shaped cylinder 12 is fixedly installed on a fixed socket 113 on the vertical connecting plate 112 through a cylinder floating joint 16, and the support frame 13 slides along the vertical connecting plate 112 through a linear slide rail 17.

[0031] The support frame 13 moves relative to the base 11 through the linear slide rail 17, the length of the overlapping part of the support frame 13 and the base 11 is changed, the height of the single-point pressing head 20 can be adjusted, thereby reducing the height difference of all the single-point pressing heads 20, the output pressure controlled by the electric proportional valve is the same when all the pen cores adopt the same cylinder diameter, all the single-point pressing heads 20 press the material with the same constant force each time, the consistency of the material pressing effect is maintained, and the pressing quality of the material is uneven due to the large deviation of the pressing force between the single-point pressing heads.

[0032] In addition, a heating plate 7 is arranged at the top of the pressing plate 2, the heating plate 7 is fixedly connected with the base 11 through a heat insulation plate 8, the heating plate 7 is made of brass, a heating pipe, a thermocouple and a heating connecting line are arranged in the heating plate 7, the material can be hot-pressed through the arrangement of the heating plate 7, the adhesion of the adhesive sheet is excited, and the pressing effect of the material and the adhesive sheet is improved.

[0033] The above examples are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and 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 can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, no matter from which point of view, the embodiments 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. A single-point constant force pressing device, characterized in that: The invention comprises an upper die plate (3) and a plurality of pressing plates (2) arranged in an array, wherein each pressing plate (2) is fixedly mounted on the upper die plate (3) via a pressing head power member (1); a single-point pressing head (20) is mounted at the bottom of the pressing plate (2); the pressing plate (2) moves in a direction close to and away from a lower die mechanism via the pressing head power member (1) to press the material; The upper mold single plate (3) is configured as a manifold with air flow channels distributed therein. An air path distributor (5) connected to the air path of the pressure head power component (1) is installed on the upper mold single plate (3). The air path distributor (5) is equipped with an electric proportional valve (6) to control the pressure applied by the pressure head power component (1) to the pressure plate (2).

2. A single-point constant force pressing device according to claim 1, characterized in that: The pressure head power part (1) adopts a combination of a cylinder and a linear slide rail, and includes a pen-shaped cylinder (12), a base (11) and a support frame (13); The support frame (13) is at least a semi-enclosed structure; the top of the pen-shaped cylinder (12) is connected to a pressure sensor (15) via a cylinder mounting adapter plate (14); the pressure sensor (15) is fixedly mounted within the enclosed area of ​​the support frame (13); the top of the support frame (13) is fixedly connected to the upper mold plate (3); the base (11) is slidably connected to the support frame (13) and can adjust the height of the single-point pressure head (20).

3. A single-point constant force pressing device according to claim 2, characterized in that: The base (11) is T-shaped as a whole and includes a horizontal seat plate (111) and a vertical connecting plate (112). The pen-shaped cylinder (12) is fixedly mounted on a fixed socket (113) on the vertical connecting plate (112) via a cylinder floating joint (16). The support frame (13) slides along the vertical connecting plate (112) via a linear slide rail (17).

4. The single-point constant force pressing device according to claim 1, characterized in that: The lower mold mechanism comprises a carrier plate (4) and a fixture plate (9), a lower mold silica gel (10) is provided on the carrier plate (4), and the lower mold silica gel (10) passes through the contoured groove on the fixture plate (9) and cooperates with the single-point pressing head (20) to extrude the material.

5. The single-point constant force pressing device according to claim 2, characterized in that: A heating plate (7) is provided on the top of the pressing plate (2), and the heating plate (7) is fixedly connected to the base (11) via a heat insulation plate (8).

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