A stepped pre-press mechanism for a press

Abstract

The utility model relates to the field of laminated board processing discloses a kind of stepped pre-pressing mechanism for laminated board, including base and pressing assembly, the top of the base is provided with lifting plate, the top of the base is provided with lifting assembly, the pressing assembly includes pressing plate one, pressing plate two and pressing plate three, the lower inner wall of lifting plate is slidably connected in the pressing plate one, the top of the pressing plate one is fixedly connected with slide bar, the inner wall of lifting plate is slidably connected in the slide bar, the top of the pressing plate one is elastically connected with the inner wall of lifting plate by spring one. In the utility model, by setting the pressing plate one, pressing plate two and pressing plate three of different heights in the bottom of lifting plate, lifting plate is driven to descend by lifting assembly, by stepped pre-pressing mode, laminated board is subjected to different degrees of pressure in different stages, avoid the deformation or damage of plate material due to the instantaneous excessive pressure, ensure that the pressing effect is uniform and compact simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of press plate processing, and in particular to a stepped pre-pressing mechanism for press plates. Background Technology

[0002] The manufacturing process of multi-layer boards generally involves first creating the inner layer pattern, then using printing and etching to create a single- or double-sided substrate, which is then inserted into the designated interlayer. After heating, pressurizing, and bonding, the subsequent drilling is done in the same way as the plated hole method for double-sided boards. Due to the unique structure of the interlaced arrangement of multi-layer solid wood flooring, it has excellent stability, so there is little need to worry about the flooring warping due to moisture.

[0003] In the prior art, traditional pressing devices for laminated plates typically employ a single uniform pressing method, that is, applying constant pressure to the entire plate through a single pressing component. However, single pressing is difficult to adapt to the material characteristics differences between the edge and center areas of the plate, which can easily lead to insufficient edge pressure or overload in the center area, causing problems such as local deformation and interlayer misalignment of the plate. This can also easily cause local stress concentration, thereby reducing the pressing effect. To address these issues, a stepped pre-pressing mechanism for laminated plates is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a stepped pre-pressing mechanism for press plates, which aims to improve the problem in the prior art that "single pressurization is difficult to adapt to the material property differences between the edge and center areas of the plate, reducing the pressing effect".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stepped pre-pressing mechanism for pressing plates, comprising a base and a pressing assembly. A lifting plate is provided on the top of the base, and the pressing assembly is provided on the top of the base. The pressing assembly includes a first pressing plate, a second pressing plate, and a third pressing plate. The first pressing plate is slidably connected to the lower inner wall of the lifting plate, and a sliding rod is fixedly connected to the top of the first pressing plate. The sliding rod is slidably connected to the inner wall of the lifting plate, and the top of the first pressing plate is elastically connected to the inner wall of the lifting plate via a first spring. The second pressing plate is slidably connected to the lower inner wall of the lifting plate, and a connecting rod is hinged to the top of the second pressing plate. A moving block is hinged to the end of the connecting rod away from the second pressing plate. A guide rod is fixedly connected to the inner wall of the lifting plate, and the moving block is slidably connected to the outer wall of the guide rod. A limit ring is fixedly connected to the outer wall of the guide rod, and the limit ring is elastically connected to the moving block via a second spring. The third pressing plate is fixedly connected to the bottom of the lifting plate.

[0006] As a further description of the above technical solution:

[0007] The lifting assembly includes a top plate, and a column is fixedly connected to the bottom of the top plate. The bottom of the column is fixedly connected to the top of the base.

[0008] As a further description of the above technical solution:

[0009] The lifting assembly also includes an electric cylinder, which is fixedly connected to the bottom of the top plate, and the bottom of the output shaft of the electric cylinder is fixedly connected to the top of the lifting plate.

[0010] As a further description of the above technical solution:

[0011] The lifting plate is slidably connected to the outer wall of the column.

[0012] As a further description of the above technical solution:

[0013] The spring is fitted onto the outside of the slide rod.

[0014] As a further description of the above technical solution:

[0015] The bottom of the pressure plate three is provided with anti-slip texture, and the pressure plate three is located at the bottom center of the lifting plate.

[0016] As a further description of the above technical solution:

[0017] The number of pressure plates two is set to two sets, and the two sets of pressure plates two are symmetrically arranged on the left and right sides of pressure plate three. The number of pressure plates one is set to two sets, and the two sets of pressure plates one are symmetrically arranged on the left and right sides of pressure plate two.

[0018] As a further description of the above technical solution:

[0019] The bottom of the second pressure plate is lower than the bottom horizontal plane of the third pressure plate, and the bottom of the first pressure plate is lower than the bottom horizontal plane of the second pressure plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, pressure plates one, two and three at different heights are set at the bottom of the lifting plate. The lifting plate is driven to descend by the lifting assembly. Through the step-type pre-pressing method, the pressing plate is subjected to different degrees of pressure at different stages, which avoids deformation or damage of the plate due to excessive pressure at any moment, and at the same time ensures that the pressing effect is uniform and tight.

[0022] 2. In this utility model, the core area of ​​the pressing plate is pressed by the pressure plate three. The anti-slip texture on the bottom of the pressure plate three can increase the friction with the pressing plate, prevent the pressing plate from slipping during the pressing process, and improve the stability and reliability of the pressing. The pressure plate two is located between the pressure plate one and the pressure plate three. It is linked with the moving block through the connecting rod. The spring two provides secondary pressure adjustment, gradually compacting the middle area of ​​the pressing plate and improving the pressing quality. Attached Figure Description

[0023] Figure 1 This is a top view of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a bottom view of the overall three-dimensional structure of this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the lifting plate and pressing assembly in this utility model;

[0026] Figure 4 This is a three-dimensional cross-sectional view of the lifting plate and pressing assembly in this utility model;

[0027] Figure 5 This utility model Figure 4 A magnified three-dimensional structural diagram at point A in the middle.

[0028] Legend:

[0029] 1. Base; 2. Lifting plate; 101. Top plate; 102. Electric cylinder; 103. Column; 10. Lifting assembly; 11. Pressing assembly; 111. Pressure plate one; 112. Slide rod; 113. Spring one; 114. Pressure plate two; 115. Connecting rod; 116. Moving block; 117. Guide rod; 118. Limiting ring; 119. Spring two; 120. Pressure plate three. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3This utility model provides an embodiment of a stepped pre-compression mechanism for pressing plates, comprising a base 1 and a compression assembly 11. A lifting plate 2 is disposed on the top of the base 1, and a lifting assembly 10 is also disposed on the top of the base 1. The base 1 serves as the support frame of the mechanism. The lifting plate 2 achieves vertical movement through the lifting assembly 10, driving the compression assembly 11 to gradually press down. The compression assembly 11 includes a first pressure plate 111, a second pressure plate 114, and a third pressure plate 120. The first pressure plate 111 is located on the outermost side and provides initial elastic support through a first spring 113, preferentially... Contact the edge of the plate to initially fix the position of the pressing plate and prevent it from shifting during subsequent operations. The pressing plate 111 is slidably connected to the lower inner wall of the lifting plate 2. The pressing plate 111 slides up and down. The top of the pressing plate 111 is fixedly connected to the slide rod 112, which is slidably connected to the inner wall of the lifting plate 2. By setting the slide rod 112, the pressing plate 111 can slide stably and will not fall off the inner wall of the lifting plate 2. The top of the pressing plate 111 is elastically connected to the inner wall of the lifting plate 2 through the spring 113. The spring 113 is sleeved on the outside of the slide rod 112.

[0032] Reference Figures 3-5 The second pressure plate 114 is slidably connected to the lower inner wall of the lifting plate 2. The second pressure plate 114 slides up and down, gradually increasing the pressure to compact the middle area of ​​the pressing plate and remove air between the layers of the pressing plate. The top of the second pressure plate 114 is hinged to a connecting rod 115 that is set in an inclined state. The end of the connecting rod 115 away from the second pressure plate 114 is hinged to a moving block 116. The inner wall of the lifting plate 2 is fixedly connected to a guide rod 117. The moving block 116 is slidably connected to the outer wall of the guide rod 117. The sliding direction of the moving block 116 is back and forth. The outer wall of the guide rod 117 is fixedly connected to a limit ring 118. The limit ring 118 is elastically connected to the moving block 116 through a second spring 119. The limit ring 118 plays a limiting role. The third pressure plate 120 is fixedly connected to the bottom of the lifting plate 2.

[0033] Reference Figure 3 , Figure 4The bottom of pressure plate 3 120 is provided with anti-slip texture. Pressure plate 3 120 is one of the main pressing components, pressing the core area of ​​the pressing plate. The anti-slip texture on the bottom of pressure plate 3 120 can increase the friction with the pressing plate, prevent the pressing plate from slipping during the pressing process, and improve the stability and reliability of the pressing. Pressure plate 3 120 is located at the bottom center of lifting plate 2. There are two sets of pressure plates 2 114, which are symmetrically arranged on the left and right sides of pressure plate 3 120. Pressure plates 2 114 are located between pressure plate 1 111 and pressure plate 3 120. The linkage 115 is linked with the moving block 116, and the second spring 119 provides secondary pressure adjustment to gradually compact the middle area of ​​the pressing plate. The number of the first pressure plate 111 is set to two sets, and the two sets of first pressure plates 111 are symmetrically arranged on the left and right sides of the second pressure plate 114. The bottom of the second pressure plate 114 is lower than the bottom horizontal plane of the third pressure plate 120, and the bottom of the first pressure plate 111 is lower than the bottom horizontal plane of the second pressure plate 114. The pressure is applied in stages and gradients to avoid local deformation or interlayer misalignment caused by a single high pressure. It is especially suitable for pressing scenarios with uneven thickness or large material differences.

[0034] Reference Figure 1 , Figure 2 The lifting assembly 10 includes a top plate 101, with a column 103 fixedly connected to the bottom of the top plate 101. The bottom of the column 103 is fixedly connected to the top of the base 1. The lifting assembly 10 also includes an electric cylinder 102, which drives the lifting plate 2 to rise and fall. The column 103 and the top plate 101 form a guide rail structure to ensure stability during the lifting process. The electric cylinder 102 is fixedly connected to the bottom of the top plate 101, and the bottom of the output shaft of the electric cylinder 102 is fixedly connected to the top of the lifting plate 2. The lifting plate 2 is slidably connected to the outer wall of the column 103. The column 103 provides guidance and support for the up and down sliding of the lifting plate 2, ensuring the movement stability and straightness of the lifting plate 2.

[0035] Working principle: In use, the pressing plate to be pressed is placed above the base 1, and then the electric cylinder 102 is activated. The output shaft of the electric cylinder 102 pushes the lifting plate 2 downward along the column 103. When the first pressing plate 111 first contacts the surface of the pressing plate, it continues to press down, and the first spring 113 is compressed. The first pressing plate 111 performs preliminary pre-pressing on the pressing plate, initially fixing the edge of the pressing plate and expelling internal air. As the lifting plate 2 continues to descend, the second pressing plate 114 also contacts the pressing plate, and the second pressing plate 114 moves upward relative to the lifting plate 2. The connecting rod 115 drives the moving block 116 to slide axially on the guide rod 117, thereby compressing the second spring 119. This causes the second pressure plate 114 to further pre-press the pressing plate, applying increasing pressure to the middle of the pressing plate to further compact the interlayer material. Finally, the third pressure plate 120 contacts the central area of ​​the pressing plate. Under the continuous downward pressure of the lifting plate 2, the high-pressure pressing of the entire area is finally completed, ensuring that each layer of the pressing plate is tightly bonded. The anti-slip texture on the bottom of the third pressure plate 120 can increase the friction between it and the pressing plate, ensuring stable pressing.

[0036] After the pressing work is completed, the electric cylinder 102 reverses, causing the lifting plate 2 to rise. The pressure plate 111 and the pressure plate 114 are released from the pressing plate in sequence under the reset action of the spring 113 and the spring 119, completing a complete stepped pre-pressing cycle. This stepped pre-pressing method allows the pressing plate to be subjected to different degrees of pressure at different stages, avoiding deformation or damage to the plate due to excessive pressure at any moment, while ensuring that the pressing effect is uniform and tight.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stepped pre-clamping mechanism for a press plate, comprising a base (1) and a clamping assembly (11), characterized in that: The top of the base (1) is provided with a lifting plate (2), and the top of the base (1) is provided with a lifting assembly (10); The pressing assembly (11) includes a first pressing plate (111), a second pressing plate (114), and a third pressing plate (120). The first pressing plate (111) is slidably connected to the lower inner wall of the lifting plate (2). A sliding rod (112) is fixedly connected to the top of the first pressing plate (111). The sliding rod (112) is slidably connected to the inner wall of the lifting plate (2). The top of the first pressing plate (111) is elastically connected to the inner wall of the lifting plate (2) through a spring (113). The second pressing plate (114) is slidably connected to the lower inner wall of the lifting plate (2). A connecting rod (115) is hinged to the top of the lifting plate (2). A moving block (116) is hinged to the end of the connecting rod (115) away from the pressure plate (2). A guide rod (117) is fixedly connected to the inner wall of the lifting plate (2). The moving block (116) is slidably connected to the outer wall of the guide rod (117). A limit ring (118) is fixedly connected to the outer wall of the guide rod (117). The limit ring (118) is elastically connected to the moving block (116) through a spring (119). The pressure plate (3) is fixedly connected to the bottom of the lifting plate (2).

2. The stepped pre-compression mechanism for a pressing plate according to claim 1, characterized in that: The lifting assembly (10) includes a top plate (101), and a column (103) is fixedly connected to the bottom of the top plate (101). The bottom of the column (103) is fixedly connected to the top of the base (1).

3. A stepped pre-compression mechanism for a pressing plate according to claim 2, characterized in that: The lifting assembly (10) also includes an electric cylinder (102), which is fixedly connected to the bottom of the top plate (101), and the bottom of the output shaft of the electric cylinder (102) is fixedly connected to the top of the lifting plate (2).

4. A stepped pre-compression mechanism for a pressing plate according to claim 3, characterized in that: The lifting plate (2) is slidably connected to the outer wall of the column (103).

5. A stepped pre-compression mechanism for a pressing plate according to claim 1, characterized in that: The spring (113) is sleeved on the outside of the slide bar (112).

6. A stepped pre-compression mechanism for a pressing plate according to claim 1, characterized in that: The bottom of the pressure plate three (120) is provided with anti-slip texture, and the pressure plate three (120) is located at the bottom center of the lifting plate (2).

7. A stepped pre-compression mechanism for a pressing plate according to claim 6, characterized in that: The number of pressure plates two (114) is set to two sets, and the two sets of pressure plates two (114) are symmetrically arranged on the left and right sides of pressure plate three (120). The number of pressure plates one (111) is set to two sets, and the two sets of pressure plates one (111) are symmetrically arranged on the left and right sides of pressure plate two (114).

8. A stepped pre-compression mechanism for a pressing plate according to claim 7, characterized in that: The bottom of the second pressure plate (114) is lower than the bottom horizontal plane of the third pressure plate (120), and the bottom of the first pressure plate (111) is lower than the bottom horizontal plane of the second pressure plate (114).

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