CN-121989351-A - Nondestructive separation method for wet blank of calcium silicate board

CN121989351ACN 121989351 ACN121989351 ACN 121989351ACN-121989351-A

Abstract

The invention provides a nondestructive separation method of a wet blank of a calcium silicate board, which comprises the following steps of S1 designing a vacuum adsorption device to have at least two flexible adsorption areas with differential deformation characteristics, S2 carrying out time-sequence negative pressure adjustment on each flexible adsorption area through a gas circuit control module to enable each flexible adsorption area to generate differential deformation, driving the wet blank to form non-uniform deformation of a preset shape and damage an adhesive layer of the wet blank and a bearing surface, S3 separating the wet blank from the bearing surface and transferring the wet blank to a target position, S4 relieving the negative pressure of each flexible adsorption area to enable the wet blank to be separated from an adsorption state and finishing separation. According to the invention, the flexible adsorption area design of differential deformation is matched with the air path control module to regulate the timing negative pressure of the flexible adsorption area, so that the non-uniform deformation of the wet blank is realized to damage the adhesive layer of the wet blank and the bearing surface, the purpose of nondestructive separation of the wet blank is achieved, the production efficiency is improved, meanwhile, the local stress concentration is effectively avoided, and the product quality is improved.

Inventors

WU JIANG
YU TING
LIU YONGYONG
LIU LINJIE
ZHOU BOTAO
DU HUIXIA
TAO YIN

Assignees

武汉建筑材料工业设计研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20260128

Claims (10)

1. The nondestructive separation method for the wet blank of the calcium silicate board is characterized by comprising the following steps of: s1, arranging a vacuum adsorption device in a to-be-separated area of a wet blank, wherein the vacuum adsorption device is provided with at least two flexible adsorption areas with differential deformation characteristics, and the flexible adsorption areas are in surface contact with the surface of the wet blank; S2, carrying out time-sequence negative pressure adjustment on each flexible adsorption area through the air path control module to enable each flexible adsorption area to generate differential deformation, and further driving the wet blank to form non-uniform deformation of a preset shape to damage an adhesive layer of the wet blank and a bearing surface; s3, separating the wet blank from the bearing surface and transferring the wet blank to a target position under the condition that the wet blank keeps in a non-uniform deformation state; S4, releasing the negative pressure of each flexible adsorption area to enable the wet blank to be separated from the adsorption state, and completing separation.
2. The method for nondestructively separating wet green calcium silicate boards according to claim 1, wherein in S1, two flexible adsorption areas are respectively a first adsorption area and a second adsorption area, wherein the deformability of the first adsorption area is greater than that of the second adsorption area, the first adsorption area is distributed at the end of the wet green, and the second adsorption area is distributed at the middle of the wet green.
3. The method of non-destructive separation of wet calcium silicate board blanks according to claim 2, wherein the first adsorption zone is a sponge adsorption member and the second adsorption zone is a foam adsorption member.
4. The method for non-destructive separation of wet green from calcium silicate board according to claim 1, wherein in S1, the contact area between the flexible adsorption region and the surface of the wet green is not less than 80% of the surface area of the wet green.
5. The method for nondestructively separating a wet blank of a calcium silicate board according to claim 2, wherein in the step S2, the non-uniform deformation of the preset shape of the wet blank is changed into the end tilting of the wet blank, the middle of the wet blank is kept relatively fixed, and the tilting height of the end of the wet blank is 10-25mm.
6. The method according to claim 5, wherein in S2, the time-series negative pressure adjustment is performed by applying negative pressure to the first adsorption area and then applying negative pressure to the second adsorption area.
7. The method according to claim 6, wherein the first adsorption area is divided into a plurality of adsorption units along the length direction of the wet blank according to the length of the wet blank, each adsorption unit is independently negative pressure-regulated by the air path control module, and when negative pressure is applied to the first adsorption area, the negative pressure is sequentially applied to the adsorption units close to the second adsorption area from the adsorption units far from the second adsorption area in the order of negative pressure application of each adsorption unit.
8. The nondestructive separation method of wet blank of calcium silicate board according to claim 1, wherein the gas circuit control module comprises a gas distribution cavity, an electromagnetic valve group and at least two cylinders, wherein the gas distribution cavity is provided with gas circuit channels which are independent and correspond to the flexible adsorption areas one by one, the cylinders are in one correspondence with the gas circuit channels one by one, the cylinders are electrically connected with the electromagnetic valve group, and the starting, stopping and action time sequence of the cylinders are controlled through the electromagnetic valve group, so that the on-off and negative pressure application time of the corresponding gas circuit channels are controlled.
9. The method of claim 1, wherein the position of the bearing surface is defined by a stop assembly to prevent synchronous deformation or displacement of the bearing surface with the wet blank when S2 and S3 are performed.
10. The method for nondestructively separating wet blanks of calcium silicate boards according to claim 9, wherein the limiting assembly is a pusher, and the screw rod of the pusher is adjusted according to wet blanks with different thicknesses so that the lower end of the pusher is abutted against the bearing surface.

Description

Nondestructive separation method for wet blank of calcium silicate board Technical Field The invention belongs to the technical field of building material production, and particularly relates to a nondestructive separation method for wet blanks of calcium silicate boards. Background In the production flow of the calcium silicate board, wet blanks before steaming are extremely easy to adhere with a steel template or adjacent wet blanks in the stacking and conveying process due to low strength and fragile surface, and become core pain points for restricting the automatic pushing of production. In the prior art, wet blank separation mainly depends on manual operation, and workers need to manually peel adhered wet blanks at specific posts, so that the efficiency is low, high potential safety hazards exist, and meanwhile, the labor cost is greatly increased. In addition, when the problem of adhesion of a dried plate after steaming is solved, a round sucker can be utilized to suck the plate blank, and the two ends of the plate blank are tilted by utilizing an air cylinder or other physical machines, so that the separation effect is achieved, however, a wet blank which is not steamed yet is fragile because the round sucker which is conventionally used for separating the dried plate is directly applied to separating the wet blank, because the suction area of the round sucker is small and the suction force of the unit area is concentrated, the surface of the wet blank is easy to generate indentation or structural damage, and the nondestructive separation requirement of the wet blank cannot be met. Therefore, a method capable of realizing efficient, nondestructive and automatic separation of wet blanks is needed, and the long-standing technical problem is solved. Disclosure of Invention The invention aims to provide a nondestructive separation method for wet blank of a calcium silicate board, which can at least solve part of defects in the prior art. In order to achieve the above purpose, the invention adopts the following technical scheme: a non-destructive separation method for wet blank of calcium silicate board comprises the following steps: s1, arranging a vacuum adsorption device in a to-be-separated area of a wet blank, wherein the vacuum adsorption device is provided with at least two flexible adsorption areas with differential deformation characteristics, and the flexible adsorption areas are in surface contact with the surface of the wet blank; S2, carrying out time-sequence negative pressure adjustment on each flexible adsorption area through the air path control module to enable each flexible adsorption area to generate differential deformation, and further driving the wet blank to form non-uniform deformation of a preset shape to damage an adhesive layer of the wet blank and a bearing surface; s3, separating the wet blank from the bearing surface and transferring the wet blank to a target position under the condition that the wet blank keeps in a non-uniform deformation state; S4, releasing the negative pressure of each flexible adsorption area to enable the wet blank to be separated from the adsorption state, and completing separation. Further, in S1, the number of the flexible adsorption areas is two, namely a first adsorption area and a second adsorption area, the deformability of the first adsorption area is greater than that of the second adsorption area, the first adsorption area is distributed at the end of the wet blank, and the second adsorption area is distributed at the middle of the wet blank. Further, the first adsorption area is made of a sponge adsorption piece, and the second adsorption area is made of a foam adsorption piece. Further, in S1, the contact area between the flexible adsorption area and the surface of the wet blank is not less than 80% of the surface area of the wet blank. In the step S2, the non-uniform deformation of the preset shape of the wet blank is changed into the tilting of the end part and the middle part of the wet blank, which are kept relatively fixed, and the tilting height of the end part of the wet blank is 10-25mm. In the step S2, the time-series negative pressure adjustment process is to apply a negative pressure to the first adsorption area and then apply a negative pressure to the second adsorption area. When negative pressure is applied to the first adsorption area, the negative pressure is applied to the adsorption units of each section in sequence from the adsorption units far away from the second adsorption area to the adsorption units close to the second adsorption area. Further, the gas circuit control module comprises a gas distribution cavity, an electromagnetic valve group and at least two cylinders, wherein the gas distribution cavity is provided with gas circuit channels which are independent in one-to-one correspondence with the flexible adsorption areas, the cylinders are in one-to-one correspondence with the gas circuit channels, the cylinder