A dynamic pressure equalization device for multi-thickness material stacks

Abstract

The utility model discloses a kind of dynamic pressure balancing devices of multi-thickness material lamination, it includes: inner platform, perpendicular to the direction of its upper end surface is up-down direction;Outer platform, its sleeve is located in the outer side of inner platform, it includes outer frame, lower drive part for driving outer frame relative to the up-down movement of inner platform;Upper pressure head, it includes upper support, upper pressing plate installed on upper support, the lower end surface of upper pressing plate is equipped with several negative pressure suction holes;Pressure sensing part, for detecting the pressure magnitude of upper pressing plate to inner platform;When the pressure of upper pressing plate to inner platform is less than set value, lower drive part drives outer frame to go down, until the pressure that upper pressing plate exerts to inner platform reaches set value. Utilize pressure sensing part and pass through the transmission of inner platform, real-time sensing the pressure of upper pressing plate to stacked ceramic sheet, and then realize the real-time monitoring of ceramic sheet pressing condition, fast and accurate control upper pressing plate downstroke, complete pressing.

Description

Technical Field

[0001] This utility model relates to a dynamic pressure balancing device for multi-thickness material stacks. Background Technology

[0002] Ceramic encapsulation production requires stacking and pressing multiple thin ceramic sheets. The current pressing method involves bonding an outer frame that roughly matches the ceramic sheet's outline to the ceramic sheet using tape, followed by pressing by a robotic arm with a pressing function. However, different ceramic encapsulation specifications correspond to different ceramic sheet sizes. Therefore, with a fixed outer frame size, the position of the top surface of the ceramic sheet relative to the top surface of the outer frame will differ. Before pressing, the top surface of the uppermost ceramic sheet should be roughly flush with the top surface of the uppermost outer frame. Simultaneously, as the pressing process proceeds, the outer frame should gradually descend along with the top surface of the uppermost ceramic sheet to ensure that the outer frame does not exert significant pulling force on the ceramic sheet. Currently, to achieve this, the relative positional relationship between the outer frame and the ceramic sheet needs to be determined manually by visual inspection or calculation, and the height of the outer frame needs to be manually adjusted. This method is not only inefficient but also lacks sufficient precision. Summary of the Invention

[0003] The purpose of this invention is to provide a dynamic pressure balancing device for multi-thickness material stacks, which can adjust the relative position of the material frame and ceramic sheet in real time, making the pressing more precise and faster.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a dynamic pressure balancing device for multi-thickness material stacks, comprising:

[0005] The direction perpendicular to the upper surface of the inner platform is the vertical direction;

[0006] An outer platform, which is fitted onto the outside of the inner platform, includes an outer frame and a lower drive unit for driving the outer frame to move up and down relative to the inner platform.

[0007] The upper pressure head includes an upper bracket and an upper pressure plate mounted on the upper bracket. The lower end face of the upper pressure plate is provided with a plurality of negative pressure suction holes.

[0008] The pressure sensor is used to detect the pressure exerted by the upper pressure plate on the inner platform. When the pressure exerted by the upper pressure plate on the inner platform is less than a set value, the lower drive unit drives the outer frame to move downward until the pressure exerted by the upper pressure plate on the inner platform reaches the set value.

[0009] Another implementation method includes a dynamic pressure balancing device that further includes an air pump for creating negative pressure inside the negative pressure suction hole.

[0010] Another implementation method is that the lower end face of the upper pressure plate matches the contour of the outer frame.

[0011] Another implementation method is that the pressure sensing unit includes a first pressure sensor installed on the inner platform. When the inner platform is squeezed by the upper pressure plate, the first pressure sensor can sense the change in pressure of the upper pressure plate on the inner platform.

[0012] Another implementation method is that the inner platform includes an inner platform plate and an inner bracket for supporting the inner platform plate. The first pressure sensor is attached to the lower end surface of the inner platform plate and is a piezoelectric ceramic sensor.

[0013] Another implementation method involves an upper support having a columnar guide groove and a columnar limiting groove coaxially arranged with the guide groove. The diameter of the limiting groove is larger than that of the guide groove. A guide post passing through the guide groove is provided on the upper end surface of the upper pressure plate. A limiting ring is provided around the circumference of the guide post and is located within the limiting groove. The pressure sensor includes a second pressure sensor located within the limiting groove and on the upward path of the limiting ring, and a third pressure sensor located on the downward path of the limiting ring. The upper pressure plate first adsorbs material. Depending on the pressure of the limiting ring on the third pressure sensor before and after adsorbing the material, the weight of the material can be determined. After the upper pressure plate adsorbs the material and moves downward to place the material on another material, it continues to move downward. The limiting ring then moves upward to press the second pressure sensor. The second pressure sensor can sense the pressure of the material on the material below in real time.

[0014] Another implementation method is that the lower drive unit includes a support guide rail, a linear motor installed between the support guide rail and the outer frame, and the outer frame is slidably connected to the support guide rail.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: by using the first pressure sensor to transmit through the inner platform, the pressure of the upper pressure plate on the stacked ceramic sheets is sensed in real time, thereby realizing real-time monitoring of the ceramic sheet pressing situation, and quickly and accurately controlling the downward stroke of the upper pressure plate to complete the pressing. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a side view of the present invention when the upper pressure head is not pressed down;

[0018] Figure 3 This is a side view of the present invention after the upper pressure head is pressed down. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] See Figure 1-3 As shown, a dynamic pressure balancing device for multi-thickness material stacks is used to press materials. The material consists of an outer frame A and a ceramic sheet B. The inner contour of the outer frame A roughly matches the outer contour of the ceramic sheet B. The outer frame A and the ceramic sheet B are bonded together with adhesive tape. The dynamic pressure balancing device includes: an inner platform, an outer platform, an upper pressure head 1, a pressure sensing unit, and an air pump for creating negative pressure inside the negative pressure suction hole. The air pump is not the focus of this utility model and will not be described in detail here.

[0021] The inner platform includes an inner platform plate 4 and an inner support 5 for supporting the inner platform plate 4. The direction perpendicular to the upper surface of the inner platform plate 4 is the up and down direction.

[0022] The outer platform is fitted outside the inner platform and includes an outer frame 6 and a lower drive unit 7 for driving the outer frame 6 to move up and down relative to the inner platform. The lower drive unit 7 includes a support rail 8 and a linear motor 9 installed between the support rail 8 and the outer frame 6. The outer frame 6 is slidably connected to the support rail 8, and the upper end face contour of the outer frame 6 is the same as the lower end face contour of the outer frame A.

[0023] The upper pressure head 1 includes an upper support 2 and an upper pressure plate 3 mounted on the upper support 2. The lower end face of the upper pressure plate 3 is provided with several negative pressure suction holes. The lower end face of the upper pressure plate 3 matches the outline of the outer frame 6. The upper support 2 is driven by a downward-pressing robotic arm. The robotic arm is not the focus of this utility model and will not be described in detail here.

[0024] The pressure sensing unit is used to detect the pressure exerted by the upper pressure plate 3 on the inner platform. When the pressure exerted by the upper pressure plate 3 on the inner platform is less than a set value, the lower drive unit 7 drives the outer frame 6 downward, reducing the supporting force of the outer frame on the material's outer frame A on the upper pressure plate 3. This causes the pressure of the ceramic sheet B of the material on the upper pressure plate 3 on the inner platform and the ceramic sheet B of other materials on the inner platform to gradually increase until the pressure exerted by the upper pressure plate 3 on the inner platform reaches the set value. The pressure sensing unit includes a first pressure sensor mounted on the inner platform. When the inner platform is squeezed by the upper pressure plate 3, the first pressure sensor can sense the change in pressure exerted by the upper pressure plate 3 on the inner platform. The first pressure sensor is attached to the lower end surface of the inner platform plate 4 and is a piezoelectric ceramic sensor.

[0025] To improve the pressure accuracy generated when the upper pressure head 1 moves downward, a columnar guide groove 12 and a columnar limiting groove 13 coaxially arranged with the guide groove 12 are provided on the upper support 2. The diameter of the limiting groove 13 is larger than the diameter of the guide groove 12. A guide post 14 passing through the guide groove 12 is provided on the upper end surface of the upper pressure plate 3. A limiting ring 15 is provided around the circumference of the guide post 14. The limiting ring 15 is located in the limiting groove 13. The pressure sensor includes a second pressure sensor 10 located in the limiting groove 13 and on the upward path of the limiting ring 15, and a pressure sensor 10 located on the downward path of the limiting ring 15. The third pressure sensor 11 on the upper platen 3 first adsorbs material. The pressure of the third pressure sensor 11 on the limiting ring 15 changes according to the adsorption of material. At this time, the weight of the material can be known. After the upper platen 3 adsorbs material and moves down to place the material on another material and continues to move down, the limiting ring 15 moves up to squeeze the second pressure sensor 10. The second pressure sensor can sense the squeezing force of the material on the upper side on the material on the lower side in real time. The first pressure sensor and the second pressure sensor 10 can be detected and calibrated synchronously, thereby improving the pressure accuracy generated when the upper pressure head 1 moves down.

[0026] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dynamic pressure balancing device for multi-thickness material stacks, characterized in that, It includes: The direction perpendicular to the upper surface of the inner platform is the vertical direction; An outer platform, which is fitted onto the outside of the inner platform, includes an outer frame and a lower drive unit for driving the outer frame to move up and down relative to the inner platform. The upper pressure head includes an upper bracket and an upper pressure plate mounted on the upper bracket. The lower end face of the upper pressure plate is provided with a plurality of negative pressure suction holes. A pressure sensor is used to detect the pressure exerted by the upper pressure plate on the inner platform.

2. The dynamic pressure balancing device for multi-thickness material stacks according to claim 1, characterized in that: The dynamic pressure balancing device also includes an air pump for creating negative pressure inside the negative pressure suction hole.

3. The dynamic pressure balancing device for multi-thickness material stacks according to claim 1, characterized in that: The lower end face of the upper pressure plate matches the contour of the outer frame.

4. The dynamic pressure balancing device for multi-thickness material stacks according to claim 1, characterized in that: The pressure sensing unit includes a first pressure sensor installed on the inner platform. When the inner platform is squeezed by the upper pressure plate, the first pressure sensor can sense the change in pressure exerted by the upper pressure plate on the inner platform.

5. The dynamic pressure balancing device for multi-thickness material stacks according to claim 4, characterized in that: The inner platform includes an inner platform plate and an inner bracket for supporting the inner platform plate. The first pressure sensor is attached to the lower end surface of the inner platform plate and is a piezoelectric ceramic sensor.

6. The dynamic pressure balancing device for multi-thickness material stacks according to claim 1, characterized in that: The upper support is provided with a columnar guide groove and a columnar limiting groove coaxially arranged with the guide groove. The diameter of the limiting groove is larger than the diameter of the guide groove. The upper end face of the upper pressure plate is provided with a guide post passing through the guide groove. A limiting ring is provided around the circumference of the guide post. The limiting ring is located in the limiting groove. The pressure sensor includes a second pressure sensor located in the limiting groove and on the upward path of the limiting ring and a third pressure sensor located on the downward path of the limiting ring.

7. The dynamic pressure balancing device for multi-thickness material stacks according to claim 1, characterized in that: The lower drive unit includes a support guide rail and a linear motor installed between the support guide rail and the outer frame, wherein the outer frame is slidably connected to the support guide rail.

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