A separating device for a stack of sheet-like materials

Abstract

The utility model discloses a kind of separating devices of sheet material stacking layer, including first separating machine, second separating machine and thickness measuring device, first separating machine and second separating machine are oppositely arranged at the both ends of sheet material in conveying direction, first separating machine includes first telescopic machine and the first clamping piece connected on first telescopic machine, first telescopic machine can reciprocate along vertical direction, first separating machine can reciprocate along the conveying direction of sheet material, the separating device structure of the utility model is simple, and automation separation can be realized.

Description

Technical Field

[0001] This utility model relates to a device for separating stacked layers of sheet materials. Background Technology

[0002] Copper-clad laminate prepreg (PP sheet) is a core material in the manufacture of printed circuit boards (PCBs) and is typically stored in multi-layer stacks. During production, the stacked PP sheets need to be separated one by one and their thickness measured to ensure the accuracy of subsequent lamination processes. Traditional separation methods rely on manual separation, which is prone to issues such as excess or insufficient PP, contamination, or electrostatic adsorption, resulting in low separation efficiency and poor consistency. Furthermore, after separating each stacked PP sheet, its thickness still needs to be measured, but existing thickness measuring devices are mostly offline sampling inspections and cannot be linked to the separation process. This makes it difficult to provide real-time thickness data and reject defective products, leading to unstable production quality. Utility Model Content

[0003] The purpose of this invention is to solve the problems of low separation efficiency and unstable production quality of existing copper-clad laminate prepreg sheets. It provides a separation device and method for stacked sheet materials. This invention offers high separation efficiency and allows for the detection of sheet material thickness during the separation process, enabling timely removal of defective products and improving production quality.

[0004] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0005] This utility model provides a separation device for stacked sheet materials, which includes a first separator, a second separator, and a thickness measuring device;

[0006] The first separator and the second separator are positioned opposite each other at both ends of the sheet material in the conveying direction;

[0007] The first separator includes a first telescopic mechanism and a first clamping member connected to the first telescopic mechanism. The first telescopic mechanism is capable of reciprocating in a vertical direction. The first separator is also capable of reciprocating in a conveying direction of the sheet material.

[0008] The second separator includes a second telescopic mechanism and a second clamping member connected to the second telescopic mechanism. The second telescopic mechanism is capable of reciprocating in a vertical direction; the second separator is capable of reciprocating in a conveying direction of the sheet material.

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

[0010] In this invention, the first clamping member and the second clamping member are used to clamp sheet-like materials.

[0011] Preferably, the first clamping member and / or the second clamping member includes a fixed part, a movable part, and a scooping part. The fixed part is connected to the first telescopic mechanism, and the movable part can move closer to and further away from the fixed part. A clamping opening for clamping the sheet material is formed between the movable part and the fixed part. The scooping part is movably connected to the side of the fixed part and can rotate about the side of the fixed part. In this preferred embodiment, since the scooping part is movably connected to the fixed part, during the clamping process, as the first separator and / or the second separator moves along the conveying direction of the sheet material or in the opposite direction, the scooping part scoops up the end of the sheet material. The scooping part is acted upon by the stack of sheet material below it, causing the upper surface of the scooping part to gradually become flush with the upper surface of the fixed part, allowing the sheet material to smoothly enter the clamping opening between the fixed part and the movable part.

[0012] Preferably, the movable connection is a hinge, and the scooping part and the fixed part form a "hing" structure.

[0013] Preferably, both the movable part and the fixed part are plate parts with flat surfaces to reduce scratches and abrasions on the sheet material.

[0014] Preferably, the movable part is connected to a servo motor, which drives the movable part to move closer to and away from the fixed part. This preferred embodiment can further improve clamping stability, while also facilitating control of the clamping force and reducing or preventing the movable part and fixed part from scratching the sheet material.

[0015] Preferably, the movable part is located above the fixed part, which facilitates the up-and-down movement of the movable part.

[0016] Preferably, the surfaces of the fixed part and the movable part used to form the clamping opening are parallel to each other and are inclined surfaces. The inclined surfaces slope downward from away from the shovel part to near the shovel part. The inclined surfaces can reduce excessive bending when the sheet material is clamped.

[0017] Preferably, the shovel part is a shovel plate, the width of which gradually decreases in the direction away from the fixing part, and the thickness of which gradually decreases in the direction away from the fixing part, so that the shovel plate forms a wedge-shaped block structure. This preferred solution facilitates shoveling up sheet materials while reducing scratches on the sheet materials.

[0018] In this invention, the thickness measuring device can be any existing sensor capable of measuring thickness, preferably a split-type displacement sensor, such as the W-DCS500 split-type displacement sensor, which offers high measurement accuracy. When using a split-type displacement sensor, the probe of the sensor is connected to the first telescopic mechanism, converting the change in distance between the sensor and the surface of the object being measured into a quantifiable electrical signal output.

[0019] In this invention, the number of the first separators is preferably at least two, for example, three. The multiple first separators are arranged at equal intervals along the direction perpendicular to the movement of the sheet material, which can better clamp the sheet material and improve the flatness and stability of the sheet material when it is extracted.

[0020] In this invention, the number of the second separators is preferably at least two, for example, three. The multiple second separators are arranged at equal intervals along the direction perpendicular to the movement of the sheet material, which can better clamp the sheet material and improve the flatness and stability of the sheet material when it is extracted.

[0021] In this invention, when there are at least three first separators, the thickness measuring device is installed on the first separator located in the middle.

[0022] In this invention, the separation device for the stacked sheet material preferably further includes a crossbeam, the length direction of which is the same as the conveying direction of the sheet material; one end of the first telescopic machine is connected to the crossbeam, and the other end of the first telescopic machine is connected to the first clamping member, the first telescopic machine being able to reciprocate along the length direction of the crossbeam; one end of the second telescopic machine is connected to the crossbeam, and the other end of the second telescopic machine is connected to the second clamping member, the second telescopic machine being able to reciprocate along the length direction of the crossbeam.

[0023] In this invention, the separation device for the sheet material stack layer preferably further includes a storage platform, which is disposed below the first separator and the second separator, and is used to place the sheet material stack layer.

[0024] Preferably, the bottom of the storage platform is also provided with a lifting mechanism, which is preferably a hydraulic lifting mechanism.

[0025] In this invention, the separation device for the sheet material stack layer preferably further includes a counter, which is disposed above the sheet material stack layer and is used to count the number of sheet materials separated.

[0026] In this invention, the sheet material stacking separation device preferably further includes a PLC controller (i.e., a programmable logic controller). 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 along the vertical direction, the reciprocating movement of the second telescopic machine along 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] Preferably, the PLC controller is also 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. When the set threshold is not met, the PLC controller controls the first separator to transport the sheet material to a designated area.

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

[0029] When the separation device for the stacked sheet material of this utility model further includes the aforementioned counter, the PLC controller is also connected to the counter. The PLC controller is used to control the counter to start counting once every time a sheet of the stacked sheet material is removed from the stacked sheet material.

[0030] Preferably, the PLC controller is also connected to the aforementioned lifting mechanism, and the PLC controller is used to control the lifting and lowering of the lifting mechanism and the lifting distance.

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

[0032] In this invention, the thickness of the sheet material is a common thickness for sheet materials in the art, preferably 0.1~50mm.

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

[0034] When the aforementioned sheet material stack separation device is used to separate the sheet material stack, the sheet material stack separation method specifically includes the following steps: wherein the sheet materials in the sheet material stack are stacked in a staggered manner in sequence;

[0035] Step 1: Determine whether the end of the current sheet material closest to the first separator in the stacked sheet material layer is misaligned to the point that the lower sheet material is exposed. If yes, proceed to Step 2; otherwise, proceed to Step 3.

[0036] Step 2: Clamp the current sheet material near one end of the first separator using the first clamping member, and measure the thickness of the current sheet material using the thickness measuring device; then use the first separator to extract the current sheet material from the stack of sheet materials.

[0037] Step 3: The current sheet material is clamped at one end near the second separator by the second clamping member, and then the current sheet material is moved a set distance from the stack of sheet materials by the second separator, so that the end of the current sheet material near the first separator is misaligned to expose the lower sheet material.

[0038] The first clamping member holds one end of the current sheet material close to the first separator, and the thickness of the current sheet material is measured by the thickness measuring device; the second clamping member is opened, and the current sheet material is then extracted from the stack of sheet materials by the first separator;

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

[0040] In this utility model, step 2 preferably includes the following steps:

[0041] Step 2.1, Initial state: The first separator is in the waiting position, and the first clamping member remains in the open state. The waiting position refers to the position where the first separator is located diagonally above the end of the current sheet material closest to the first separator.

[0042] The first separator is moved to the end of the current sheet material that is close to the first separator, and the current sheet material is clamped by the first clamping member; and the thickness of the current sheet material is measured by the thickness measuring device;

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

[0044] In this utility model, step 3 preferably includes the following steps:

[0045] Step 3.1, 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 in the open state; the waiting position of the first separator refers to the position where the first separator is located diagonally above the end of the current sheet material closest to the first separator, and the waiting position of the second separator refers to the position where the second separator is located diagonally above the end of the current sheet material closest to the second separator;

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

[0047] Step 3.2: The current sheet material is moved a set distance from the stack of sheet materials using the second separator;

[0048] Step 3.3: Move the first separator to the end of the current sheet material close to the first separator, 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 discharge position; after discharge is completed, the first separator and the first clamping member are readjusted to the initial state.

[0051] In this invention, the set distance in step 3 can be set according to the required misalignment amount in actual working conditions, for example, 10cm. The misalignment amount refers to the distance between the ends of two adjacent sheet materials.

[0052] In this invention, step 2 and / or step 3, after measuring the thickness of the current sheet material by the thickness measuring device, may further include the following steps: determining whether the thickness of the current sheet material is at a set threshold; if so, moving the current sheet material to the first discharge position by the first separator; otherwise, moving the current sheet material to the second discharge position by the first separator.

[0053] Preferably, the set threshold is a range from a set thickness minus 0.08 mm to a set thickness plus 0.08 mm.

[0054] This utility model also provides a separation and correction device for a stack of sheet materials, which includes the aforementioned separation device for the stack of sheet materials and a sheet material pushing and correction machine arranged sequentially along the conveying direction of the sheet materials; the sheet material pushing and correction machine is used to correct the position of the separated sheet materials and push the position-corrected sheet materials downstream.

[0055] In this invention, the push-correction machine can be a conventional infrared correction machine in the field.

[0056] The positive and progressive effects of this utility model are as follows:

[0057] The separation device of this utility model has a simple structure and can achieve automated separation;

[0058] The separation method of this utility model has high separation efficiency and can detect the thickness of the sheet material in real time during the separation process, and promptly remove unqualified products to obtain consistent sheet material. In the embodiments of this utility model, the separation and thickness measurement success rate is ≥99.5%. Attached Figure Description

[0059] Figure 1 This is a front view of the separation device for the stacked sheet material layer described in the embodiment of this utility model.

[0060] Figure 2 This is a side view of the separation device for the stacked sheet material layer described in an embodiment of the present invention.

[0061] Figure 3 This is a schematic diagram of the structure of the first separator described in an embodiment of the present invention.

[0062] Figure 4 This is a schematic diagram of the material shovel section as described in an embodiment of the present utility model.

[0063] Figure 5 This is a schematic diagram of the separation method described in an embodiment of the present utility model.

[0064] Explanation of reference numerals in the attached figures:

[0065] 1-First separator, 2-Second separator, 3-Crossbeam, 4-Storage platform, 5-Lifting mechanism;

[0066] 101 - First telescopic mechanism; 102 - First clamping component;

[0067] 201 - Second telescopic mechanism; 202 - Second clamping component;

[0068] 1021-Fixed part, 1022-Moving part, 1023-Shovel part, 1024-Clamping opening. Detailed Implementation

[0069] The present invention is further illustrated below by way of embodiments, but these embodiments do not limit the present invention to the scope of the embodiments described. Experimental methods in the following embodiments that do not specify specific conditions are performed according to conventional methods and conditions, or as selected according to the product instructions.

[0070] A specific embodiment of this utility model discloses a device for separating stacked layers of sheet materials, such as... Figure 1 and Figure 2 As shown, it includes a first separator 1, a second separator 2, and a thickness measuring device; the first separator 1 and the second separator 2 are arranged opposite each other at both ends of the sheet material in the conveying direction; the thickness measuring device is used to measure the thickness of the sheet material and is installed on the first separator 1.

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

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

[0073] As a preferred embodiment, the first clamping member 102 includes a fixed part 1021, a movable part 1022 and a scooping part 1023. The fixed part 1021 is connected to the first telescopic machine 101. The movable part 1022 can move closer to and further away from the fixed part 1021. A clamping opening 1024 for clamping sheet material is formed between the movable part 1022 and the fixed part 1021.

[0074] The scraping part 1023 is hinged to the side of the fixing part 1021, and the scraping part 1023 can rotate around the side of the fixing part 1021. Specifically, the scraping part and the fixing part form a "hing" 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 parts with flat surfaces. The surfaces in the fixed part 1021 and the movable part 1022 that form 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, which slope downwards from away from the shovel part 1023 to near the shovel part 1023.

[0076] The movable part 1022 is connected to a servo motor, which drives the movable part 1022 to move closer to and further away from the fixed part 1021.

[0077] The shovel section 1023 is a shovel plate, such as Figure 4 As shown, the width of the scraper plate gradually decreases in the direction away from the fixing part 1021, and the thickness of the scraper plate gradually decreases in the direction away from the fixing part 1021, so that the scraper 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 embodiment, the thickness measuring device is a split-type displacement sensor, specifically a W-DCS500 split-type displacement sensor. The split-type displacement sensor is connected to the first telescopic mechanism 101 of the intermediate first separator 1.

[0080] In another preferred embodiment of this utility model, the sheet material stacking separation device is further provided with a crossbeam 3 based on the above embodiment scheme. The length direction of the crossbeam 3 is the same as the conveying direction of the sheet material. One end of the first telescopic machine 101 is connected to the crossbeam 3, and the other end of the first telescopic machine 101 is connected to the first clamping member 102. The first telescopic machine 101 can reciprocate along the length direction of the crossbeam 3. One end of the second telescopic machine 201 is connected to the crossbeam 3, and the other end of the second telescopic machine 201 is connected to the second clamping member 202. The second telescopic machine 201 can reciprocate along the length direction of the crossbeam 3.

[0081] In another preferred embodiment of this utility model, the sheet material stacking separation device, based on the above-described embodiment, is further provided with a storage platform 4. The storage platform 4 is located below the first separator 1 and the second separator 2, and is used to hold the sheet material stacking layer. A lifting mechanism 5, which is a hydraulic lifting mechanism, is also provided at the bottom of the storage platform 4.

[0082] In another preferred embodiment of this utility model, the sheet material stacking separation device is further provided with a counter, which is set above the sheet material stacking layer and is used to calculate the number of sheet materials separated.

[0083] In another preferred embodiment of this utility model, the sheet material stacking separation device, based on the above-described embodiment, is further equipped with 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 sheet material conveying direction, the reciprocating movement of the second separator 2 along the sheet material conveying direction, the reciprocating movement of the first telescopic machine 101 along the vertical direction, the reciprocating movement of the second telescopic machine 201 along 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 also connected to the thickness measuring device. The PLC controller is used to compare the thickness value detected by the thickness measuring device with the set threshold. When the set threshold is not met, the PLC controller controls the first separator 1 to transport the sheet material to the designated area.

[0085] In this embodiment, the PLC controller is also connected to a counter. The PLC controller is used to control the counter to start counting once every time a sheet of material is removed from the stack of sheet materials.

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

[0087] Another embodiment of this utility model discloses a method for separating sheet material stacks, which uses the sheet material stack separation device described in the above embodiment for separation.

[0088] In this embodiment, the sheet materials in the sheet material stack layer are stacked in a staggered manner, and the sheet materials are copper-clad laminate semi-cured sheets.

[0089] The separation method in this embodiment specifically includes the following steps, the clamping process as follows: Figure 5 As shown.

[0090] Step 1: Determine whether the end of the current sheet material closest to the first separator 1 in the stacked sheet material layer is misaligned to the point that the lower sheet material is exposed. If yes, proceed to Step 2; otherwise, proceed to Step 3.

[0091] Step 2: The first clamping member 102 clamps one end of the current sheet material close to the first separator 1, and the thickness of the current sheet material is measured by the thickness measuring device; then the first separator 1 extracts the current sheet material from the stack of sheet materials; specifically, it includes the following steps:

[0092] Step 2.1, 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 means that the first separator 1 is located diagonally above the end of the current sheet material that is close to the first separator 1.

[0093] 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 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 crossbeam 3, move the first separator 1 to the discharge position, and open the first clamping member 102 to discharge the material; after the material is discharged, the first separator 1 and the first clamping member 102 are readjusted to the initial state.

[0095] Step 3: The second clamping member 202 clamps the end of the current sheet material near the second separator 2, and the second separator 2 moves the current sheet material a set distance from the stack of sheet materials, so that the end of the current sheet material near the first separator 1 is misaligned to expose the lower sheet material; the first clamping member 102 clamps the end of the current sheet material near the first separator 1, and the thickness of the current sheet material is measured by a thickness measuring device; the second clamping member 202 is opened, and the first separator 1 removes the current sheet material from the stack of sheet materials; specifically, the following steps are included:

[0096] Step 3.1, Initial state: Both the first separator 1 and the second separator 2 are in the waiting position, and both the first clamping member 102 and the second clamping member 202 remain in the open state; the waiting position of the first separator 1 means that the first separator 1 is located diagonally above the end of the current sheet material closest to the first separator 1, and the waiting position of the second separator 2 means that the second separator 2 is located diagonally above the end of the current sheet material closest 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 mechanism 201 to move along the crossbeam 3, moving the current sheet material a set distance from the stack of sheet materials. The set distance can be set according to the required misalignment in actual working conditions. In this embodiment, it is 10cm. The misalignment refers to the distance between the ends of two adjacent layers of sheet material.

[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 with the first clamping member 102, and measure the thickness of the current sheet material with the thickness measuring device.

[0100] Step 3.4, open the second clamp 202;

[0101] Step 3.5: Adjust the first telescopic machine 101 to move along the crossbeam 3, move the first separator 1 to the discharge position, and open the first clamping member 102 to discharge the material; after the material is discharged, the first separator 1 and the first clamping member 102 are readjusted to the initial state.

[0102] In steps 2 and 3, after measuring the thickness of the current sheet material using the thickness measuring device, the following steps are also included: determining whether the thickness of the current sheet material is within a set threshold. If so, the current sheet material is moved to the first discharge position using the first separator 1; otherwise, the current sheet material is moved to the second discharge position using the first separator 1. The set threshold is the range from a set thickness minus 0.08 mm to a set thickness plus 0.08 mm.

[0103] Step 4: Repeat steps 1 to 3 above until all sheet materials in the stacked sheet material layers are separated.

Claims

1. A device for separating stacked layers of sheet material, characterized in that, It includes a first separator, a second separator, and a thickness measuring device; The first separator and the second separator are positioned opposite each other at both ends of the sheet material in the conveying direction; The first separator includes a first telescopic mechanism and a first clamping member connected to the first telescopic mechanism. The first telescopic mechanism is capable of reciprocating in a vertical direction. The first separator is also capable of reciprocating in a conveying direction of the sheet material. The second separator includes a second telescopic mechanism and a second clamping member connected to the second telescopic mechanism. The second telescopic mechanism is capable of reciprocating in a vertical direction; the second separator is capable of reciprocating in a conveying direction of the sheet material. The thickness measuring device is used to measure the thickness of sheet materials, and the thickness measuring device is installed on the first separator.

2. The separation device for sheet material stacks as described in claim 1, characterized in that, The first clamping member and / or the second clamping member includes a fixed part, a movable part, and a scooping part. The fixed part is connected to the first telescopic mechanism. The movable part can move closer to and further away from the fixed part. A clamping opening for clamping the sheet material is formed between the movable part and the fixed part. The scooping part is movably connected to the side of the fixed part. The scooping part can rotate about the side of the fixed part.

3. The separation device for sheet material stacks as described in claim 2, characterized in that, The movable part is connected to a servo motor, which drives the movable part to move closer to or away from the fixed part. And / or, the movable part is located above the fixed part.

4. The separation device for sheet material stacks as described in claim 2, characterized in that, The surfaces of the fixed part and the movable part used to form the clamping opening are parallel to each other and are inclined surfaces, and the inclined surfaces slope downward from away from the shovel part to near the shovel part; And / or, the shovel part is a shovel plate, the width of the shovel plate gradually decreases in the direction away from the fixing part, and the thickness of the shovel plate gradually decreases in the direction away from the fixing part.

5. The separation device for sheet material stacks as described in 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 two, and multiple first separators are arranged at equal intervals along a direction perpendicular to the movement of the sheet material; And / or, the number of the second separators is at least two, and multiple second separators are arranged at equal intervals in sequence along the direction perpendicular to the movement of the sheet material.

6. The separation device for sheet material stacks as described in claim 1, characterized in that, The separation device for the stacked sheet material further includes a crossbeam, the length direction of which is the same as the conveying direction of the sheet material; one end of the first telescopic machine is connected to the crossbeam, and the other end of the first telescopic machine is connected to the first clamping member, the first telescopic machine being able to reciprocate along the length direction of the crossbeam; one end of the second telescopic machine is connected to the crossbeam, and the other end of the second telescopic machine is connected to the second clamping member, the second telescopic machine being able to reciprocate along the length direction of the crossbeam.

7. The separation device for sheet material stacks as described in claim 1, characterized in that, The separation device for the sheet material stack layer also includes a storage platform, which is located below the first separator and the second separator, and is used to place the sheet material stack layer; The bottom of the storage platform is also equipped with a lifting mechanism, which is preferably a hydraulic lifting mechanism.

8. The separation device for sheet material stacks as described in claim 1, characterized in that, The separation device for the sheet material stack also includes a counter, which is disposed above the sheet material stack and is used to count the number of sheet materials to be separated.

9. The separation device for sheet material stacks as described in claim 1, characterized in that, The separation device for the stacked sheet material 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 along the vertical direction, the reciprocating movement of the second telescopic machine along the vertical direction, and the clamping and opening of the first clamping member and the second clamping member.

10. The separation device for sheet material stacks as described in claim 9, characterized in that, The PLC controller is also connected to the thickness measuring device; And / or, the separation device for the sheet material stack layer further includes a counter, which is disposed above the sheet material stack layer and is used to count the number of sheet materials separated, and the PLC controller is also connected to the counter; And / or, the separation device for the sheet material stack layer further includes a storage platform, which is located below the first separator and the second separator. The storage platform is used to place the sheet material stack layer, and a lifting mechanism is provided at the bottom of the storage platform. The PLC controller is connected to the lifting mechanism.

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