Separation device and separation method for sheet material stacking layer

Abstract

The invention discloses a separation device and method for sheet material stacked layers, the separation device for the sheet material stacked layers comprises a first separator, a second separator and a thickness measuring device, the first separator and the second separator are oppositely arranged at the two ends, in the conveying direction, of sheet materials, and the thickness measuring device is used for measuring the thickness of the sheet materials. The first separator comprises a first telescopic machine and a first clamping piece connected to the first telescopic machine, the first telescopic machine can move in a reciprocating mode in the vertical direction, the first separator can move in a reciprocating mode in the conveying direction of the flaky materials, and the separation device is simple in structure and capable of achieving automatic separation; according to the separation method, the separation efficiency is high, the thickness of the flaky material can be detected in real time in the separation process, unqualified products are removed in time, and the consistent flaky material can be obtained.

Description

Technical Field

[0001] The present invention relates to a separating device and a separating method for a stacked layer of sheet materials. Background Art

[0002] The prepreg (PP sheet) of copper clad laminate is the core material for manufacturing printed circuit boards and is usually stored in a multi-layer stacked form. During the production process, it is necessary to separate the stacked PP sheets one by one and detect their thicknesses to ensure the accuracy of the subsequent lamination process. The traditional separation method relies on manual separation, which is prone to causing too many or too few PP sheets, contamination, or electrostatic adsorption, resulting in low separation efficiency and poor consistency. Moreover, after the stacked PP sheets are separated one by one, their thicknesses need to be measured. However, most of the existing thickness measuring devices are off-line sampling inspections, unable to be linked with the separation process, making it difficult to provide real-time feedback of thickness data and reject unqualified products, leading to unstable production quality. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems of low separation efficiency and unstable production quality of the existing prepreg of copper clad laminate. A separating device and a separating method for a stacked layer of sheet materials are provided. The separating device and method of the present invention have high separation efficiency, and can detect the thickness of the sheet material during the separation process to timely reject unqualified products and improve production quality.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides a separating device for a stacked layer of sheet materials, which includes a first separator, a second separator, and a thickness measuring device;

[0006] The first separator and the second separator are oppositely arranged at both ends of the sheet material in the conveying direction;

[0007] The first separator includes a first telescopic machine and a first clamping member connected to the first telescopic machine. The first telescopic machine can reciprocate vertically; the first separator can reciprocate in the conveying direction of the sheet material;

[0008] The second separator includes a second telescopic machine and a second clamping member connected to the second telescopic machine. The second telescopic machine can reciprocate vertically; the second separator can reciprocate in the conveying direction of the sheet material;

[0009] The thickness measuring device is used to measure the thickness of the sheet material, and the thickness measuring device is arranged on the first separator.

[0010] In the present invention, the first clamping member and the second clamping member are used to clamp the sheet material.

[0011] Preferably, the first clamping member and / or the second clamping member includes a fixed portion, a movable portion, and a material shoveling portion. The fixed portion is connected to the first telescoping machine. The movable portion can approach and move away from the fixed portion. A clamping opening for clamping the sheet material is formed between the movable portion and the fixed portion. The material shoveling portion is movably connected to the side portion of the fixed portion, and the material shoveling portion can rotate about the side portion of the fixed portion. In this preferred solution, since the material shoveling portion is movably connected to the fixed portion, during the clamping process, as the first separating machine and / or the second separating machine moves along the conveying direction of the sheet material or in the direction opposite to the conveying direction of the sheet material, the material shoveling portion shovels up the end of the sheet material. The material shoveling portion is affected by the stacked layer of sheet materials below it, so that the upper surface of the material shoveling portion gradually becomes flush with the upper surface of the fixed portion, enabling the sheet material to smoothly enter the clamping opening between the fixed portion and the movable portion.

[0012] Preferably, the movable connection is a hinge connection, and the material shoveling portion and the fixed portion form a "hinge" structure.

[0013] Preferably, both the movable portion and the fixed portion are plate members, and the plate surfaces of the plate members are flat, reducing scraping and scratching of the sheet material.

[0014] Preferably, the movable portion is connected to a servo motor, and the servo motor drives the movable portion to approach and move away from the fixed portion. This preferred solution can further improve the clamping stability, and at the same time is conducive to controlling the magnitude of the clamping force, reducing or avoiding scratching of the sheet material by the movable portion and the fixed portion.

[0015] Preferably, the movable portion is located above the fixed portion, facilitating the up and down movement of the movable portion.

[0016] Preferably, the surfaces of the fixed portion and the movable portion for forming the clamping opening are parallel to each other and are inclined surfaces. The inclined surfaces are inclined downward from being away from the material shoveling portion to being close to the material shoveling portion. The setting of the inclined surfaces can reduce excessive bending of the sheet material when it is clamped.

[0017] Preferably, the material shoveling portion is a material shoveling plate. The width of the material shoveling plate gradually decreases in the direction away from the fixed portion, and the thickness of the material shoveling plate gradually decreases in the direction away from the fixed portion, so that the material shoveling plate forms a wedge-shaped block structure. This preferred solution facilitates shoveling up the sheet material and at the same time reduces scratching of the sheet material.

[0018] In the present invention, the thickness measuring device may be an existing sensor capable of measuring thickness, preferably a split displacement sensor, such as the split displacement sensor of model W-DCS500, which has high measurement accuracy. When using the split displacement sensor, the probe of the split displacement sensor is connected to the first telescopic machine, and the change in the distance between the sensor and the surface of the object to be measured is converted into a quantifiable electrical signal output.

[0019] In the present invention, the number of the first separating machines is preferably at least 2, such as 3. A plurality of the first separating machines are arranged at equal intervals in sequence along the direction perpendicular to the movement direction of the sheet material, which can better clamp the sheet material and improve the flatness and stability when the sheet material is pulled out.

[0020] In the present invention, the number of the second separating machines is preferably at least 2, such as 3. A plurality of the second separating machines are arranged at equal intervals in sequence along the direction perpendicular to the movement direction of the sheet material, which can better clamp the sheet material and improve the flatness and stability when the sheet material is pulled out.

[0021] In the present invention, when there are at least 3 first separating machines, the thickness measuring device is arranged on the middle first separating machine.

[0022] In the present invention, the separating device for the sheet material stacking layer preferably further includes a cross beam, the length direction of the cross beam is the same as the conveying direction of the sheet material; one end of the first telescopic machine is connected to the cross beam, the other end of the first telescopic machine is connected to the first clamping member, and the first telescopic machine can reciprocate along the length direction of the cross beam; one end of the second telescopic machine is connected to the cross beam, the other end of the second telescopic machine is connected to the second clamping member, and the second telescopic machine can reciprocate along the length direction of the cross beam.

[0023] In the present invention, the separating device for the sheet material stacking layer preferably further includes a storage table, the storage table is arranged below the first separating machine and the second separating machine, and the storage table is used for placing the sheet material stacking layer.

[0024] Wherein, a lifting mechanism is preferably further arranged at the bottom of the storage table, and the lifting mechanism is preferably a hydraulic lifting mechanism.

[0025] In the present invention, the separating device for the sheet material stacking layer preferably further includes a counter, the counter is arranged above the sheet material stacking layer and is used for calculating the number of the separated sheet materials.

[0026] In the present invention, the separating device for the stacked sheet material layer preferably further includes a PLC controller (programmable logic controller), and the PLC controller is connected to the first separator, the first telescopic machine, the first clamping member, the second separator, the second telescopic machine, and the second clamping member. The PLC controller is used to control the reciprocating movement of the first separator along the conveying direction of the sheet material, the reciprocating movement of the second separator along the conveying direction of the sheet material, the reciprocating movement of the first telescopic machine in the vertical direction, the reciprocating movement of the second telescopic machine in the vertical direction, and the clamping and opening of the first clamping member and the second clamping member, so as to better achieve automation.

[0027] Wherein, the PLC controller is preferably further connected to the thickness measuring device, and the PLC controller is used to compare the thickness value detected by the thickness measuring device with a set threshold value. When the set value is not satisfied, the first separator is controlled to convey the sheet material to a specified area.

[0028] The set threshold value is preferably in the range of the set thickness minus 0.08 mm to the set thickness plus 0.08 mm.

[0029] Wherein, when the separating device for the stacked sheet material layer of the present invention further includes the aforementioned counter, the PLC controller is also connected to the counter, and the PLC controller is used to control the counter to start counting once for each sheet material withdrawn from the stacked sheet material layer.

[0030] Wherein, the PLC controller is preferably further connected to the aforementioned lifting mechanism, and the PLC controller is used to control the lifting and the lifting distance of the lifting mechanism.

[0031] In the present invention, the sheet materials in the stacked sheet material layer are preferably stacked in a staggered manner in sequence.

[0032] In the present invention, the thickness of the sheet material is the common thickness of the conventional sheet materials in the art, preferably 0.1 - 50 mm.

[0033] In the present invention, the sheet material is conventional in the art, such as a prepreg of a copper clad laminate.

[0034] The present invention also provides a method for separating a stacked sheet material layer, which uses the aforementioned separating device for the stacked sheet material layer for separation. The sheet materials in the stacked sheet material layer are stacked in a staggered manner in sequence, and specifically include the following steps:

[0035] Step 1, determine whether one end of the current sheet material in the stacked sheet material layer close to the first separator is misaligned to expose the lower-layer sheet material. If so, proceed to step 2; otherwise, proceed to step 3;

[0036] Step 2: Clamp one end of the current sheet material close to the first separator by the first clamping member, and measure the thickness of the current sheet material by the thickness measuring device; then withdraw the current sheet material from the sheet material stack by the first separator.

[0037] Step 3: Clamp one end of the current sheet material close to the second separator by the second clamping member, and then move the current sheet material from the sheet material stack by the second separator by a set distance, so that one end of the current sheet material close to the first separator is misaligned to expose the lower sheet material.

[0038] Clamp one end of the current sheet material close to the first separator by the first clamping member, and measure the thickness of the current sheet material by the thickness measuring device; open the second clamping member, and then withdraw the current sheet material from the sheet material stack by the first separator.

[0039] Step 4: Repeat the above Steps 1 to 3 until all the sheet materials in the sheet material stack are separated.

[0040] In the present invention, Step 2 preferably includes the following steps:

[0041] Step 2.1: In the initial state, the first separator is in the waiting position, and the first clamping member remains open. The waiting position means that the first separator is located diagonally above one end of the current sheet material close to the first separator.

[0042] Move the first separator to one end of the current sheet material close to the first separator, and clamp the current sheet material by the first clamping member; and measure the thickness of the current sheet material by the thickness measuring device.

[0043] Step 2.2: Move the first separator to the discharging position; after discharging is completed, the first separator and the first clamping member are readjusted to the initial state.

[0044] In the present invention, Step 3 preferably includes the following steps:

[0045] Step 3.1: In the initial state, both the first separator and the second separator are in the waiting position, and both the first clamping member and the second clamping member remain open; the waiting position of the first separator means that the first separator is located diagonally above one end of the current sheet material close to the first separator, and the waiting position of the second separator means that the second separator is located diagonally above one end of the current sheet material close to the second separator.

[0046] Move the second separator to one end of the current sheet material close to the second separator, and clamp the current sheet material with the second clamping member;

[0047] Step 3.2, move the current sheet material a set distance from the stack of sheet materials by the second separator;

[0048] Step 3.3, move the first separator to one end of the current sheet material close to the first separator, and clamp the current sheet material with the first clamping member; and measure the thickness of the current sheet material with the thickness measuring device;

[0049] Step 3.4, open the second clamping member;

[0050] Step 3.5, move the first separator to the discharging position; after discharging is completed, the first separator and the first clamping member are readjusted to the starting state.

[0051] In the present invention, the set distance in step 3 can be set according to the required misalignment amount in the actual working condition, for example, 10 cm. The misalignment amount refers to the distance by which the ends of adjacent layers of sheet materials are offset.

[0052] In the present invention, after measuring the thickness of the current sheet material with the thickness measuring device in step 2 and / or step 3, the following steps may further be included: judge whether the thickness of the current sheet material is a set threshold value, if so, move the current sheet material to the first discharging position by the first separator, otherwise, move the current sheet material to the second discharging position by the first separator.

[0053] Wherein, the set threshold value is preferably in the range of the set thickness minus 0.08 mm to the set thickness plus 0.08 mm.

[0054] The present invention also provides a separating and correcting device for a stack of sheet materials, which includes a separating device for the stack of sheet materials and a sheet material pushing and correcting machine arranged in sequence along the conveying direction of the sheet materials; the sheet material pushing and correcting machine is used for correcting the position of the separated sheet materials and pushing the sheet materials with corrected positions to the downstream.

[0055] In the present invention, the pushing and correcting machine can be a conventional infrared correcting machine in the art.

[0056] The positive and progressive effects of the present invention are as follows:

[0057] The separating device of the present invention has a simple structure and can realize automatic separation;

[0058] The separation method of the present invention has high separation efficiency, can detect the thickness of the sheet material in real time during the separation process, promptly remove unqualified products, and can obtain consistent sheet materials. In the embodiments of the present invention, the success rate of separation and thickness measurement is ≥99.5%. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a front view of the separation device for the stacked layer of sheet materials recorded in the embodiment of the present invention.

[0060] Figure 2 It is a side view of the separation device for the stacked layer of sheet materials recorded in the embodiment of the present invention.

[0061] Figure 3 It is a schematic structural diagram of the first separator recorded in the embodiment of the present invention.

[0062] Figure 4 It is a schematic structural diagram of the material shoveling part recorded in the embodiment of the present invention.

[0063] Figure 5 It is a schematic diagram of the separation method recorded in the embodiment of the present invention.

[0064] Description of the reference numerals:

[0065] 1 - First separator, 2 - Second separator, 3 - Cross beam, 4 - Storage table, 5 - Lifting mechanism;

[0066] 101 - First telescopic machine, 102 - First clamping member;

[0067] 201 - Second telescopic machine, 202 - Second clamping member;

[0068] 1021 - Fixed part, 1022 - Movable part, 1023 - Material shoveling part, 1024 - Clamping opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0069] The present invention will be further described below by way of examples, but the present invention is not limited to the scope of the described examples. For the experimental methods without specific conditions noted in the following examples, they are carried out according to conventional methods and conditions, or selected according to the product specifications.

[0070] Specific embodiments of the present invention disclose a separation device for a stacked layer of sheet materials, as Figure 1 and Figure 2 shown, which includes a first separator 1, a second separator 2 and a thickness measurement device; the first separator 1 and the second separator 2 are oppositely arranged at both ends of the sheet material in the conveying direction; the thickness measurement device is used to measure the thickness of the sheet material, and the thickness measurement device is arranged on the first separator 1.

[0071] In this embodiment, the number of the first separators 1 is 3, and multiple first separators are arranged at equal intervals in sequence along the direction perpendicular to the movement direction of the sheet material; the number of the second separators is also 3, and multiple second separators are arranged at equal intervals in sequence along the direction perpendicular to the movement direction of the sheet material.

[0072] As Figure 3 shown, the first separator 1 includes a first telescopic machine 101 and a first clamping member 102 connected to the first telescopic machine 101. The first clamping member 102 is used for clamping the sheet material, and the first telescopic machine 101 can reciprocate in the vertical direction; the first separator 1 can reciprocate along the conveying direction of the sheet material; the second separator 2 includes a second telescopic machine 201 and a second clamping member 202 connected to the second telescopic machine 201. The second telescopic machine 201 can reciprocate in the vertical direction; the second separator 2 can reciprocate along the conveying direction of the sheet material, and the second clamping member 202 is used for clamping the sheet material.

[0073] As a preferred solution of this embodiment, the first clamping member 102 includes a fixed part 1021, a movable part 1022 and a material shoveling part 1023. The fixed part 1021 is connected to the first telescopic machine 101. The movable part 1022 can approach and depart from the fixed part 1021, and a clamping opening 1024 for clamping the sheet material is formed between the movable part 1022 and the fixed part 1021.

[0074] The material shoveling part 1023 is hinged to the side part of the fixed part 1021, and the material shoveling part 1023 can rotate around the side part of the fixed part 1021. Specifically, the material shoveling part and the fixed part form a "hinge" structure.

[0075] The movable part 1022 is located above the fixed part 1021. Both the movable part 1022 and the fixed part 1021 are plate members, and the plate surfaces are flat. The surfaces of the fixed part 1021 and the movable part 1022 for forming the clamping opening 1024 are parallel to each other and are inclined surfaces. Specifically, the upper surface of the fixed part 1021 and the lower surface of the movable part 1022 are parallel inclined surfaces, and the inclined surfaces are inclined downward from far away from the material shoveling part 1023 to close to the material shoveling part 1023.

[0076] The movable part 1022 is connected to a servo motor, and the servo motor is used to drive the movable part 1022 to approach and depart from the fixed part 1021.

[0077] The material shoveling part 1023 is a material shoveling plate. As Figure 4 shown, the width of the material shoveling plate gradually decreases along the direction away from the fixed part 1021, and the thickness of the material shoveling plate gradually decreases along the direction away from the fixed part 1021, so that the material shoveling plate forms a wedge-shaped block structure.

[0078] The structure of the second clamping member 202 is the same as that of the first clamping member 102.

[0079] As a preferred solution of this embodiment, the thickness measuring device is a split displacement sensor, specifically a split displacement sensor of model W-DCS500. The split displacement sensor is connected to the first telescopic machine 101 of the first separator 1 in the middle.

[0080] In another preferred embodiment of the present invention, based on the above embodiment, the separating device for the stacked sheet material layer further includes a cross beam 3. The length direction of the cross beam 3 is the same as the conveying direction of the sheet material. One end of the first telescopic machine 101 is connected to the cross beam 3, and the other end is connected to the first clamping member 102. The first telescopic machine 101 can reciprocate along the length direction of the cross beam 3. One end of the second telescopic machine 201 is connected to the cross beam 3, and the other end is connected to the second clamping member 202. The second telescopic machine 201 can reciprocate along the length direction of the cross beam 3.

[0081] In another preferred embodiment of the present invention, based on the above embodiment, the separating device for the stacked sheet material layer further includes a storage table 4. The storage table 4 is arranged below the first separator 1 and the second separator 2, and is used for placing the stacked sheet material layer. A lifting mechanism 5 is further arranged at the bottom of the storage table 4, and the lifting mechanism 5 is a hydraulic lifting mechanism.

[0082] In another preferred embodiment of the present invention, based on the above embodiment, the separating device for the stacked sheet material layer further includes a counter. The counter is arranged above the stacked sheet material layer and is used for calculating the number of separated sheet materials.

[0083] In another preferred embodiment of the present invention, based on the above embodiment, the separating device for the stacked sheet material layer further includes a PLC controller. The PLC controller is connected to the first separator 1, the first telescopic machine 101, the first clamping member 102, the second separator 2, the second telescopic machine 201, and the second clamping member 202. The PLC controller is used to control the reciprocating movement of the first separator 1 along the conveying direction of the sheet material, the reciprocating movement of the second separator 2 along the conveying direction of the sheet material, the reciprocating movement of the first telescopic machine 101 in the vertical direction, the reciprocating movement of the second telescopic machine 201 in the vertical direction, and the clamping and opening of the first clamping member 102 and the second clamping member 202.

[0084] In this embodiment, the PLC controller is further connected to the thickness measuring device. The PLC controller is used to compare the thickness value detected by the thickness measuring device with a set threshold value. When the set value is not satisfied, it controls the first separator 1 to convey the sheet material to a specified area.

[0085] In this embodiment, the PLC controller is further connected to the counter. The PLC controller is used to control the counter to start counting once for each sheet material withdrawn from the stacked sheet material layer.

[0086] In this embodiment, the PLC controller is also connected to the lifting mechanism 5, and the PLC controller is used to control the lifting and lifting distance of the lifting mechanism 5.

[0087] Another embodiment of the present invention discloses a method for separating a stacked layer of sheet materials, which uses the separating device for a stacked layer of sheet materials described in the above embodiment for separation.

[0088] In this embodiment, the sheet materials in the stacked layer of sheet materials are stacked in a staggered manner in sequence, and the sheet materials are copper clad laminate prepregs.

[0089] The separation method of this embodiment specifically includes the following steps, and the clamping process is as Figure 5 shown.

[0090] Step 1, determine whether one end of the current sheet material in the stacked layer of sheet materials is misaligned to expose the lower-layer sheet material near the first separator 1. If so, proceed to Step 2; otherwise, proceed to Step 3;

[0091] Step 2, clamp one end of the current sheet material near the first separator 1 through the first clamping member 102, and measure the thickness of the current sheet material through the thickness measuring device; then withdraw the current sheet material from the stacked layer of sheet materials through the first separator 1; specifically including the following steps:

[0092] Step 2.1, in the initial state, the first separator 1 is in the waiting position, and the first clamping member 102 remains in the open state. The waiting position refers to the position where the first separator 1 is obliquely above one end of the current sheet material near the first separator 1;

[0093] Adjust the first telescopic machine 101 to move along the cross beam 3, move the first separator 1 to one end of the current sheet material near the first separator 1, and clamp the current sheet material through the first clamping member 102; and measure the thickness of the current sheet material through the thickness measuring device;

[0094] Step 2.2, adjust the first telescopic machine 101 to move along the cross beam 3, move the first separator 1 to the discharging position, and open the first clamping member 102 to discharge the material; after the discharging is completed, the first separator 1 and the first clamping member 102 are readjusted to the initial state.

[0095] Step 3, clamping the end of the current sheet material close to the second separator 2 by the second clamping member 202, and then moving the current sheet material from the sheet material stacking layer by the second separator 2 by a set distance, so that the end of the current sheet material close to the first separator 1 is displaced to expose the lower sheet material; clamping the end of the current sheet material close to the first separator 1 by the first clamping member 102, and measuring the thickness of the current sheet material by a thickness measuring device; opening the second clamping member 202, and then extracting the current sheet material from the sheet material stacking layer by the first separator 1; specifically comprising the following steps:

[0096] Step 3.1, starting state, the first separator 1 and the second separator 2 are both in the waiting position, and the first clamp 102 and the second clamp 202 are both kept in the open state; the waiting position of the first separator 1 means that the first separator 1 is located at a position obliquely above one end of the current sheet material close to the first separator 1, and the waiting position of the second separator 2 means that the second separator 2 is located at a position obliquely above one end of the current sheet material close to the second separator 2;

[0097] Adjust the second telescopic machine 201 to move along the crossbeam 3, move the second separator 2 to the end of the current sheet material close to the second separator 2, and clamp the current sheet material through the second clamping member 202;

[0098] Step 3.2, adjust the second telescopic machine 201 to move along the beam 3, and move the current sheet material from the sheet material stacking layer by a set distance. The set distance can be set according to the required offset amount in the actual working condition, which is 10 cm in this embodiment. The offset amount refers to the distance between the ends of two adjacent layers of sheet materials.

[0099] Step 3.3, adjust the first telescopic machine 101 to move along the crossbeam 3, move the first separator 1 to the end of the current sheet material close to the first separator 1, clamp the current sheet material by the first clamping member 102; and measure the thickness of the current sheet material by the thickness measuring device;

[0100] Step 3.4, opening the second clamping member 202;

[0101] Step 3.5, adjust the first telescopic machine 101 to move along the beam 3, move the first separator 1 to the discharge position, open the first clamping member 102 to discharge the material; after the discharge is completed, the first separator 1 and the first clamping member 102 are readjusted to the starting state.

[0102] In steps 2 and 3, after measuring the thickness of the current sheet material by a thickness measuring device, the following steps are further included: determining whether the thickness of the current sheet material is a set threshold value; if so, moving the current sheet material to the first discharging position by the first separator 1; otherwise, moving the current sheet material to the second discharging position by the first separator 1. Wherein, the set threshold value is in the range of the set thickness minus 0.08 mm to the set thickness plus 0.08 mm.

[0103] Step 4, repeat the above steps 1 to step 3 until the separation of all the sheet materials in the sheet material stack layer is completed.

Claims

1. A separating device for a stack of sheet materials, characterized in that, It includes a first separator, a second separator and a thickness measuring device; The first separator and the second separator are oppositely arranged at two ends of the sheet material in the conveying direction; The first separator includes a first telescopic machine and a first clamping member connected to the first telescopic machine. The first telescopic machine can reciprocate in the vertical direction; the first separator can reciprocate in the conveying direction of the sheet material; The second separator includes a second telescopic machine and a second clamping member connected to the second telescopic machine. The second telescopic machine can reciprocate in the vertical direction; the second separator can reciprocate in the conveying direction of the sheet material; The thickness measuring device is used to measure the thickness of the sheet material, and the thickness measuring device is arranged on the first separator.

2. The separating device for the stacked layers of sheet materials according to claim 1, characterized in that, The first clamping member and / or the second clamping member includes a fixed part, a movable part and a material shoveling part. The fixed part is connected to the first telescopic machine. The movable part can approach and move away from the fixed part. A clamping opening for clamping the sheet material is formed between the movable part and the fixed part; the material shoveling part is movably connected to the side part of the fixed part, and the material shoveling part can rotate around the side part of the fixed part.

3. The separating device for the stacked sheet materials according to claim 2, characterized in that, The movable part is connected to a servo motor, and the servo motor is used to drive the movable part to approach or move away from the fixed part; And / or, the movable part is located above the fixed part; And / or, the surfaces of the fixed part and the movable part for forming the clamping opening are parallel to each other and are inclined surfaces, and the inclined surfaces are inclined downward from far away from the material shoveling part to close to the material shoveling part; And / or, the material shoveling part is a material shoveling plate, the width of the material shoveling plate gradually decreases along the direction away from the fixed part, and the thickness of the material shoveling plate gradually decreases along the direction away from the fixed part.

4. The separating device for the stacked layers of sheet materials according to claim 1, characterized in that, The thickness measuring device is a split displacement sensor; And / or, the number of the first separators is at least 2, and multiple first separators are arranged at equal intervals in sequence along the direction perpendicular to the movement direction of the sheet material; And / or, the number of the second separators is at least 2, and multiple second separators are arranged at equal intervals in sequence along the direction perpendicular to the movement direction of the sheet material.

5. The separating device for the stacked sheet materials according to claim 1, characterized in that, The separating device for the sheet material stacking layer further includes a cross beam, and the length direction of the cross beam is the same as the conveying direction of the sheet material; one end of the first telescopic machine is connected to the cross beam, the other end of the first telescopic machine is connected to the first clamping member, and the first telescopic machine can reciprocate along the length direction of the cross beam; one end of the second telescopic machine is connected to the cross beam, the other end of the second telescopic machine is connected to the second clamping member, and the second telescopic machine can reciprocate along the length direction of the cross beam; And / or, the separating device for the sheet material stacking layer further includes a storage table, the storage table is arranged below the first separator and the second separator, and the storage table is used to place the sheet material stacking layer; preferably, a lifting mechanism is further arranged at the bottom of the storage table, and the lifting mechanism is preferably a hydraulic lifting mechanism; And / or, the separating device for the stacked sheet material layers further includes a counter, which is arranged above the stacked sheet material layers and is used to count the number of separated sheet materials.

6. The separating device for the stacked layer of sheet materials according to claim 1, characterized in that, The separating device for the stacked sheet material layers further includes a PLC controller, which is connected to the first separator, the first telescopic machine, the first clamping member, the second separator, the second telescopic machine, and the second clamping member; the PLC controller is used to control the reciprocating movement of the first separator along the conveying direction of the sheet material, the reciprocating movement of the second separator along the conveying direction of the sheet material, the reciprocating movement of the first telescopic machine in the vertical direction, the reciprocating movement of the second telescopic machine in the vertical direction, and the clamping and opening of the first clamping member and the second clamping member; Preferably, the PLC controller is further connected to the thickness measuring device, and the PLC controller is used to compare the thickness value detected by the thickness measuring device with a set threshold value. When the set value is not satisfied, it controls the first separator to extract the sheet material and convey it to a designated area; Preferably, the separating device for the stacked sheet material layers further includes a counter, which is arranged above the stacked sheet material layers and is used to count the number of separated sheet materials. The PLC controller is further connected to the counter, and the PLC controller is used to control the counter to start counting once for each sheet material extracted from the stacked sheet material layers; Preferably, the separating device for the stacked sheet material layers further includes a storage table, which is arranged below the first separator and the second separator. The storage table is used to place the stacked sheet material layers, and a lifting mechanism is further arranged at the bottom of the storage table; the PLC controller is further connected to the lifting mechanism, and the PLC controller is used to control the lifting and the lifting distance of the lifting mechanism.

7. A method for separating a stack of sheet materials, characterized in that, It uses the separating device for the stacked sheet material layers according to any one of claims 1 to 6 for separation. The sheet materials in the stacked sheet material layers are stacked in a staggered manner in sequence, and specifically includes the following steps: Step 1, determine whether one end of the current sheet material in the stacked sheet material layers close to the first separator is misaligned to expose the lower-layer sheet material. If so, proceed to Step 2; otherwise, proceed to Step 3; Step 2, clamp one end of the current sheet material close to the first separator through the first clamping member, and measure the thickness of the current sheet material through the thickness measuring device; then extract the current sheet material from the stacked sheet material layers through the first separator; Step 3, clamp one end of the current sheet material close to the second separator through the second clamping member, and then move the current sheet material from the stacked sheet material layers by a set distance through the second separator, so that one end of the current sheet material close to the first separator is misaligned to expose the lower-layer sheet material; Clamp one end of the current sheet material close to the first separator by the first clamping member, and measure the thickness of the current sheet material by the thickness measuring device; open the second clamping member, and then draw the current sheet material out of the sheet material stack by the first separator; Step 4: Repeat the above Steps 1 to 3 until all the sheet materials in the sheet material stack are separated.

8. The method for separating a stacked layer of sheet materials according to claim 7, characterized in that, Step 2 includes the following steps: Step 2.1: In the starting state, the first separator is at the waiting position, and the first clamping member remains open. The waiting position means that the first separator is located diagonally above one end of the current sheet material close to the first separator; Move the first separator to one end of the current sheet material close to the first separator, and clamp the current sheet material by the first clamping member; and measure the thickness of the current sheet material by the thickness measuring device; Step 2.2: Move the first separator to the discharging position; after discharging is completed, the first separator and the first clamping member are readjusted to the starting state.

9. The method for separating the stacked layers of sheet materials according to claim 7, characterized in that Step 3 includes the following steps: Step 3.1: In the starting state, both the first separator and the second separator are at the waiting positions, and both the first clamping member and the second clamping member remain open; the waiting position of the first separator means that the first separator is located diagonally above one end of the current sheet material close to the first separator, and the waiting position of the second separator means that the second separator is located diagonally above one end of the current sheet material close to the second separator; Move the second separator to one end of the current sheet material close to the second separator, and clamp the current sheet material by the second clamping member; Step 3.2: Move the current sheet material a set distance out of the sheet material stack by the second separator; Step 3.3: Move the first separator to one end of the current sheet material close to the first separator, and clamp the current sheet material by the first clamping member; and measure the thickness of the current sheet material by the thickness measuring device; Step 3.4: Open the second clamping member; Step 3.5: Move the first separator to the discharging position; after discharging is completed, the first separator and the first clamping member are readjusted to the starting state.

10. The method for separating a stack of sheet materials according to claim 7, characterized in that, In Step 2 and / or Step 3, after measuring the thickness of the current sheet material by the thickness measuring device, the following steps are further included: Judge whether the thickness of the current sheet material is the set threshold value. If so, move the current sheet material to the first discharging position by the first separator; otherwise, move the current sheet material to the second discharging position by the first separator.

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