Pressure maintaining mechanism for thin film rotating disc

Abstract

The utility model relates to the technical field of membrane electrode production and processing, and discloses a pressure maintaining mechanism for a thin film rotating disc. The pressure maintaining mechanism comprises a rotating device, a multi-station rotating disc connected with the rotating device, a plurality of jigs arranged on the multi-station rotating disc and a pressing assembly arranged on one side of the multi-station rotating disc. The pressing assembly comprises a rack, a lifting device arranged on the rack and a pressing plate connected with the lifting device. A bearing table is arranged in the rack; the jig in the working state is located between the pressing plate and the bearing table. And a positioning mechanism is arranged between the pressing plate and the jig in the working state. According to the pressure maintaining mechanism for the thin film rotary table, positioning is achieved when the pressing plate presses the jig downwards, the jig is prevented from deviating, and the good pressure maintaining effect is achieved.

Description

Technical Field

[0001] This utility model relates to a thin film turntable pressure holding mechanism, belonging to the field of membrane electrode manufacturing and processing technology. Background Technology

[0002] In the production of membrane electrodes, the top film, electrode sheet, and bottom film need to be bonded together sequentially to form a complete product. During the production process, the thin film sheet product is generally placed on a jig on a multi-station turntable. Then, the multi-station turntable rotates the jig containing the product to the pressure holding station, where the pressing component in the pressure holding station presses down on the jig to achieve pressure holding and pressing.

[0003] Currently, this type of diaphragm rotary pressure holding mechanism has the following drawbacks:

[0004] 1. Lack of positioning can easily cause the fixture to shift when the pressing component is pressed down.

[0005] 2. Even with a positioning mechanism, inaccurate positioning still exists.

[0006] 3. Ordinary fixtures are difficult to adapt to pressing components with pressing force of several tons, which can easily cause damage to the product or the fixture. Utility Model Content

[0007] The present invention aims to provide a thin film turntable pressure holding mechanism to solve the problem that the original mechanism is prone to jig displacement when pressing down due to lack of positioning.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A film turntable pressure holding mechanism includes a rotating device, a multi-station turntable connected to the rotating device, a plurality of fixtures disposed on the multi-station turntable, and a pressing assembly disposed on one side of the multi-station turntable; the pressing assembly includes a frame, a lifting device disposed on the frame, and a pressure plate connected to the lifting device; a support platform is provided inside the frame; the fixtures in the working state are located between the pressure plate and the support platform; a positioning mechanism is provided between the pressure plate and the fixtures in the working state.

[0010] When the rotating device drives the multi-station turntable to rotate, thereby moving the fixture containing the product to the pressure holding station (i.e., the middle of the pressure plate and the support platform), the lifting device drives the pressure plate to press down. During the pressing down, the positioning mechanism makes the pressure plate and the fixture position and fit together to achieve pressure holding, thus solving the problem that the original mechanism is prone to fixture displacement during pressing due to lack of positioning.

[0011] Furthermore, the pressure plate is provided with a plurality of positioning posts, and the fixture is provided with a plurality of positioning holes that cooperate with the positioning posts, and the positioning posts and positioning holes constitute a positioning mechanism.

[0012] Furthermore, the fixture is provided with a plurality of compensation holes, and the fixture is movably connected to the multi-station turntable through the compensation holes, wherein the compensation holes are oblong holes.

[0013] Furthermore, the bottom of the fixture is provided with a pressing plate that penetrates the multi-station turntable, and the support platform is provided with an elastic plate that cooperates with the pressing plate.

[0014] Furthermore, the fixture and the multi-station turntable are connected by springs and linear bearings.

[0015] Furthermore, the fixture has an auxiliary plate at its bottom and several compensation holes on it. The fixture is movably connected to the auxiliary plate through the compensation holes, which are oblong holes. The auxiliary plate is connected to the multi-station turntable through springs and linear bearings, and the pressing plate is fixed to the bottom of the auxiliary plate.

[0016] Furthermore, the fixture includes a fixture base plate and a fixture cover plate disposed on the fixture base plate.

[0017] Furthermore, the rotating device is an intermittent rotating device, and the intermittent rotating device employs a cam divider.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The film turntable pressure holding mechanism of this utility model achieves positioning when the pressure plate presses down on the fixture by setting a positioning mechanism, namely, setting a positioning post on the pressure plate and a positioning hole on the fixture, thereby preventing the fixture from shifting and having a good pressure holding effect.

[0020] 2. The film turntable pressure holding mechanism of this utility model, by setting a positioning mechanism and compensation holes, enables the pressure plate and fixture to be pressed together and positioned by the positioning mechanism, so that the fixture has a certain amount of movement or deflection compensation, thereby achieving precise positioning.

[0021] 3. The film turntable pressure holding mechanism of this utility model sets a pressing plate through the multi-station turntable at the bottom of the fixture and sets an elastic plate on the bearing platform. When the fixture with the product is pressed down by the pressing plate, the pressing plate and the elastic plate are in contact, so that the fixture can adapt to the pressing component with a pressing force of several tons, and avoid the product or fixture from being deformed or damaged by pressure.

[0022] 4. The film turntable pressure holding mechanism of this utility model further enhances the pressure bearing capacity of the fixture by setting a pressing plate that penetrates the multi-station turntable at the bottom of the fixture, setting an elastic plate on the bearing platform, and setting a spring and a linear bearing between the fixture and the multi-station turntable. This enables the fixture to adapt to the pressing force of several tons during pressure holding, thus avoiding damage to the product or the fixture. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Side view;

[0025] Figure 3 This is an exploded view of a partial structure of the present invention at the multi-station turntable;

[0026] Figure 4 This is a three-dimensional structural diagram of the pressing component described in this utility model.

[0027] In the figure

[0028] 1. Cam divider; 2. Four-position turntable; 3. Fixture; 31. Fixture base plate; 32. Fixture cover plate; 4. Pressing assembly; 41. Frame; 42. Lifting device; 43. Pressure plate; 44. Bearing platform; 5. Positioning column; 6. Positioning hole; 7. Compensation hole; 8. Auxiliary plate; 9. Spring; 10. Linear bearing; 11. Elastic plate; 12. Pressing plate. Detailed Implementation

[0029] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "up," "down," "left," and "right" appearing below only indicate that they correspond to the up, down, left, and right directions in the accompanying drawings and do not limit the structure.

[0030] like Figures 1 to 4As shown, the thin-film turntable pressure holding mechanism of this embodiment is widely used in industries such as lithium batteries and hydrogen batteries for the production and processing of membrane electrodes. The thin-film turntable pressure holding mechanism of this embodiment includes a rotating device, a multi-station turntable connected to the rotating device, several fixtures 3 disposed on the multi-station turntable, and a pressing assembly 4 disposed on one side of the multi-station turntable. The fixture 3 includes a fixture base plate 31 disposed on the multi-station turntable and a fixture cover plate 32 disposed on the fixture base plate 31. The pressing assembly 4 includes a frame 41, a lifting device 42 disposed on the frame 41, and a pressure plate 43 connected to the lifting device 42. A support platform 44 is provided inside the frame 41, and the support platform 44 is a horizontal platform surface. A positioning post 5 is provided around the bottom of the pressure plate 43. The fixture 3, in its working state, is located between the pressure plate 43 and the support platform 44; that is, when pressed down or in its working state, the fixture 3 is located in the exact middle of the pressure plate 43 and the support platform 44, with the bottom of the fixture 3 or the bottom of the multi-station turntable in this location in contact with the surface of the support platform 44. The fixture 3 is provided with several compensation holes 7 for movable connection with the multi-station turntable and several positioning holes 6 for cooperating with the positioning pins 5. A positioning mechanism is provided between the pressure plate 43 and the fixture 3 in its working state, and the positioning pins 5 and the positioning holes 6 form the positioning mechanism. There are four positioning holes 6, which are respectively located around the fixture cover plate 32 and around the fixture base plate 31. Each positioning hole 6 penetrates the fixture cover plate 32 and extends into the fixture base plate 31, or each positioning hole 6 penetrates the fixture cover plate 32 and the fixture base plate 31 sequentially from top to bottom. The compensation hole 7 is a waist-shaped hole, which allows the fixture 3 to extend and retract longitudinally and offset laterally. There are four waist-shaped holes, which are respectively set around the base plate 31 of the fixture.

[0031] The product is placed inside fixture 3, specifically between fixture cover plate 32 and fixture base plate 31. When the rotating device drives the multi-station turntable to rotate and rotates fixture 3 containing the product to the pressure holding position (i.e., the exact middle between pressure plate 43 and support platform 44), lifting device 42 drives pressure plate 43 to press down. During pressing down, positioning is achieved by positioning mechanism, i.e., positioning pin 5 is inserted into positioning hole 6 to achieve positioning and fit between pressure plate 43 and fixture 3. Simultaneously, during the pressing down and insertion process, the fixture 3 is provided with compensation hole 7, which allows fixture 3 to have a certain amount of movement or deflection compensation, thereby enabling pressure plate 43 and fixture 3 to be accurately positioned and fit together to achieve pressure holding.

[0032] In practical applications, some embodiments of the fixture base plate 31 are provided with an auxiliary plate 8 at the bottom. The fixture base plate 31 is movably connected to the auxiliary plate 8 through compensation holes 7 around its perimeter. In implementation, four connecting pins are inserted into the four compensation holes 7 respectively, with the bottom end of the connecting pin fixed to the auxiliary plate 8 and the top end movably disposed in the compensation hole 7. The bottom perimeter of the auxiliary plate 8 is connected to the multi-station turntable through springs 9 and linear bearings 10 respectively. A pressing plate 12 is fixed at the middle position of the bottom of the auxiliary plate 8, penetrating the multi-station turntable. The support platform 44 is provided with an elastic plate 11 that cooperates with the pressing plate 12. When the product fixture 3 is pressed down by the pressure plate 43, the pressing plate 12 and the elastic plate 11 are in contact. The auxiliary plate 8 serves both to satisfy the installation of the fixture 3 and to simultaneously satisfy the simultaneous setting of the springs 9, linear bearings 10 and compensation holes 7 (i.e., simultaneously satisfying the needs of vertical buffering and horizontal compensation of the fixture 3). The springs 9 and linear bearings 10 act as buffers to protect the fixture 3 on the auxiliary plate 8. The pressing plate 12 and the elastic plate 11 serve to protect the fixture 3 on the auxiliary plate 8, enabling the fixture 3 to withstand the pressure of several tons during pressure holding, and preventing the product or fixture 3 from being deformed or damaged.

[0033] In practical applications, in some embodiments, the elastic plate 11 is a flat plate with elasticity. The bottom of the elastic plate 11 is fixed to the frame 41 or the support platform 44 on the frame 41. In practice, columnar structures can be set around the bottom of the elastic plate 11 for fixed support, and an elastic hemispherical structure can be set in the center of the bottom of the elastic plate 11 for elastic support. The elastic plate 11 is provided with a clearance groove that mates with the linear bearing 10. The clearance groove is used to prevent interference when the linear bearing 10 rotates as it moves in and out of the pressure holding station with the multi-station turntable.

[0034] In practical applications, some embodiments use intermittent rotation devices, which employ a cam divider 1 connected to the center of the bottom of a multi-station turntable. The multi-station turntable is a four-station turntable 2, i.e., a platform with four stations evenly distributed around the turntable. Each station is equipped with a fixture 3, and one station is always in a pressure-holding position. Using a multi-station turntable improves production efficiency.

[0035] The working principle of the thin-film turntable pressure-holding mechanism in this embodiment is as follows:

[0036] The four-position turntable 2 is driven to rotate intermittently by the cam divider 1, which moves the fixture 3 containing the product to the pressure holding position. The lifting device 42 drives the pressure plate 43 to press down. During the pressing down, the positioning pin 5 is inserted into the positioning hole 6 to make the pressure plate 43 and the fixture 3 position and fit together. At the same time, during the pressing down and insertion process, the fixture 3 is provided with a compensation hole 7, which allows the fixture 3 to have a certain amount of movement or deflection compensation, so that the pressure plate 43 and the fixture 3 can be accurately positioned and fitted together. During the fitting or pressing process, the pressing plate 12 fits with the elastic plate 11. That is, at this time, the fixture 3 achieves pressure holding by pressing together the upper pressure plate 43 and the auxiliary plate 8, the pressing plate 12 and the elastic plate 11 arranged from top to bottom.

[0037] The beneficial effects of this embodiment are as follows: The film turntable pressure holding mechanism of this embodiment achieves precise positioning of the pressure plate 43 and the fixture 3 during the pressing process by setting positioning posts 5 on the pressure plate 43 and positioning holes 6 and compensation holes 7 on the fixture 3. The film turntable pressure holding mechanism of this embodiment provides a pressing plate 12 penetrating the multi-station turntable at the bottom of the fixture 3, an elastic plate 11 on the support platform 44, and a spring 9 and a linear bearing 10 between the fixture 3 and the multi-station turntable, giving the fixture 3 a strong pressure-bearing capacity. This allows the fixture 3 to withstand several tons of pressing force during pressure holding, avoiding damage to the product or the fixture 3.

[0038] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A film turntable pressure holding mechanism, comprising a rotating device, a multi-station turntable connected to the rotating device, a plurality of fixtures (3) disposed on the multi-station turntable, and a pressing assembly (4) disposed on one side of the multi-station turntable; the pressing assembly (4) comprises a frame (41), a lifting device (42) disposed on the frame (41), and a pressure plate (43) connected to the lifting device (42); characterized in that, The frame (41) is provided with a support platform (44); the fixture (3) in working state is located between the pressure plate (43) and the support platform (44); a positioning mechanism is provided between the pressure plate (43) and the fixture (3) in working state.

2. The thin-film turntable pressure-holding mechanism according to claim 1, characterized in that, The pressure plate (43) is provided with a number of positioning posts (5), and the fixture (3) is provided with a number of positioning holes (6) that cooperate with the positioning posts (5). The positioning posts (5) and the positioning holes (6) form a positioning mechanism.

3. The thin-film turntable pressure-holding mechanism according to claim 1, characterized in that, The fixture (3) is provided with several compensation holes (7), and the fixture (3) is movably connected to the multi-station turntable through the compensation holes (7). The compensation holes (7) are waist-shaped holes.

4. The thin-film turntable pressure-holding mechanism according to claim 1, characterized in that, The fixture (3) has a pressing plate (12) that penetrates the multi-station turntable at the bottom, and the support platform (44) has an elastic plate (11) that cooperates with the pressing plate (12).

5. The thin-film turntable pressure-holding mechanism according to claim 4, characterized in that, The fixture (3) and the multi-station turntable are connected by a spring (9) and a linear bearing (10).

6. The thin-film turntable pressure-holding mechanism according to claim 5, characterized in that, The fixture (3) has an auxiliary plate (8) at its bottom. The fixture (3) has several compensation holes (7). The fixture (3) is movably connected to the auxiliary plate (8) through the compensation holes (7). The compensation holes (7) are waist-shaped holes. The auxiliary plate (8) is connected to the multi-station turntable through springs (9) and linear bearings (10). The pressing plate (12) is fixed to the bottom of the auxiliary plate (8).

7. The thin-film turntable pressure-holding mechanism according to any one of claims 1 to 6, characterized in that, The fixture (3) includes a fixture base plate (31) and a fixture cover plate (32) disposed on the fixture base plate (31).

8. The thin-film turntable pressure-holding mechanism according to claim 1, characterized in that, The rotating device is an intermittent rotating device, and the intermittent rotating device adopts a cam divider (1).

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