Silicon block gluing pressing rod device and silicon block gluing method

Abstract

The invention relates to a silicon block adhesive pressing rod device and a silicon block adhesive method, the silicon block adhesive pressing rod device comprises a profile support, a back plate is arranged at the top of the profile support, the back plate is connected with a pressing plate through a hinge, and a cylinder supporting rod is connected between the back plate and the pressing plate; a panel is arranged at the top of the profile bracket; a middle hole is formed in the middle of the panel; a silicon block jacking device is mounted at the middle opening; the silicon block jacking device comprises a rack, a jacking air cylinder is arranged on the rack, the jacking air cylinder is used for driving the table top of the crystal support workpiece plate to move up and down, a crystal support workpiece plate clamping groove is formed in the top face of the table top of the crystal support workpiece plate, the crystal support workpiece plate clamping groove is used for fixing the crystal support workpiece plate, and a resin plate is arranged on the crystal support workpiece plate and used for containing silicon crystals. According to the invention, a traditional low-efficiency mode of manually placing the counter weight and pressing the bar by using gravity is broken through by using a bar pressing mode of the pressing plate and the cylinder action. Counterweights do not need to be carried, the labor intensity of workers is relieved, the labor efficiency is improved, and the labor cost is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic silicon wafer manufacturing, and particularly relates to a silicon block gluing and pressing rod device and a silicon block gluing method. Background Art

[0002] In the process of photovoltaic silicon wafer cutting and manufacturing, the square silicon rod needs to be suspended upside down and placed in a slicer to be cut into thin silicon wafers. In order to ensure that the square silicon rod does not fall after being suspended and cut into silicon wafers, the silicon crystal rod, resin plate and crystal support workpiece plate need to be bonded in the upper and lower order. The traditional bonding method is to first apply glue to the crystal support workpiece plate with the smooth surface facing up and bond the resin plate to the crystal support workpiece plate, then apply glue on the resin plate and place the silicon block on the bonded silicon crystal rod, and finally press a certain number of 20KG-30KG iron blocks on the silicon crystal rod according to the length of the silicon rod for rod pressing, let it stand and wait for the glue to solidify, and finally remove the counterweight iron block. The iron block's own gravity counterweight presses the rod to eliminate the remaining air bubbles in the adhesive surface to ensure that the silicon block and the resin plate, the resin plate and the workpiece plate are firmly bonded and there is no empty glue. In this method, when the silicon rods are fully loaded, 4 20KG-30KG iron blocks need to be placed on the rods to balance the weight. Generally, they are carried up and down manually, which is laborious. Too many times of carrying will affect production efficiency. At the same time, when the glue is not solidified, the glue between the contact surfaces of the crystal support workpiece plate and the resin plate, and the resin plate and the silicon rod will slip, thus affecting the position accuracy of the bonding. The traditional method has discontinuous processes, too many times of carrying wastes human resources, and multiple times of carrying heavy objects increase safety hazards, making it difficult to ensure the yield and safety.

[0003] This invention patent solves the above-mentioned problems of the traditional silicon crystal rod gluing production line. It adopts a new gluing device and process, saves the time of multiple handling of counterweights, and realizes the gluing stable rod pressing process, which greatly improves production efficiency and yield rate, reduces labor costs, and greatly improves production safety. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a silicon block gluing rod pressing device and a silicon block gluing method. The present invention breaks the traditional inefficient method of manually placing counterweights and using gravity to press rods by using a pressing plate and a cylinder. There is no need to carry counterweights, which reduces manual labor intensity, improves labor efficiency, and greatly reduces labor costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A silicon block gluing and pressing rod device and a silicon block gluing method, comprising a profile bracket, a back plate is provided on the top of the profile bracket, the back plate is connected to the pressing plate through a hinge, and a cylinder support rod is connected between the back plate and the pressing plate; A panel is provided on the top of the profile bracket, and a middle opening is provided in the middle of the panel; a silicon block lifting device is installed at the middle opening; The silicon block lifting device includes a frame, on which a lifting cylinder is provided. The lifting cylinder is used to drive the crystal support workpiece plate table to move up and down. The top surface of the crystal support workpiece plate table is provided with a crystal support workpiece plate slot, which is used to fix the crystal support workpiece plate. A resin plate is provided on the crystal support workpiece plate, and the resin plate is used to place silicon crystals.

[0006] Preferably, a rotary connector is provided on the end surface of the pressure plate, the rotary connector is rotatably connected to the hook-shaped rod, the hook-shaped rod is matched with a hook clip, and the hook clip is installed on the profile bracket; the hook-shaped rod is located on the opposite side of the back plate.

[0007] Preferably, a row of positioning support rods is provided on the side of the back plate.

[0008] Preferably, a fixing bolt is provided at the bottom of the profile bracket, and a cylinder control switch is provided at the side of the profile bracket.

[0009] Preferably, the lifting cylinder is mounted on the top of the frame via a cylinder fixing plate.

[0010] Preferably, a plurality of balancing cylinders are provided on the top of the frame, and the plurality of balancing cylinders are evenly distributed around the lifting cylinder.

[0011] Preferably, a magnetic ring switch is provided on the lifting cylinder.

[0012] Preferably, the telescopic rod of the lifting cylinder is connected to the crystal support workpiece plate table through an adjusting bolt.

[0013] Preferably, the rotating connecting member is a rotating motor, and the rotating motor is used to drive the hook-shaped rod to rotate.

[0014] A silicon block gluing method of a silicon block gluing and pressing device comprises the following steps: S1. Open and rotate the two hook-shaped rods, and then push the pressing plate upwards. The pressing plate is supported by the cylinder support rod and will not fall down. S2, placing the crystal support workpiece plate on the crystal support workpiece plate table, and clamping it between the crystal support workpiece plate clamping slots; S3, apply the first glue on the crystal support workpiece plate and then place the resin plate on it; S4, after applying glue for the second time on the resin board, place the square silicon crystal; S5. The square silicon crystal sticks close to the positioning support rod to prevent the square silicon crystal sticks from sliding when the glue is not dry; S6. After gluing is completed, pull down the pressing plate, and then rotate the two hook-shaped rods to hook the two hooks at the front end of the profile bracket; S7, twist the cylinder control switch to start the lifting cylinder to lift up; the lifting cylinder is forced upward by the crystal support workpiece plate table surface, and the pressure plate is forced downward by the square silicon crystal, thereby playing the role of adhesive pressing rod; S8. After waiting for the glue to solidify, twist the cylinder control switch to reset the lifting cylinder downward, open the two hook-shaped rods, flip up the pressure plate, and take out the crystal support assembly with the glue solidified; after a single operation is completed, proceed to glue the next silicon crystal block.

[0015] The present invention can achieve the following beneficial effects: 1) By using the pressing plate and cylinder action pressing rod method, the traditional inefficient method of placing counterweights manually and using gravity to press rods is broken. There is no need to carry counterweights, which reduces the labor intensity, improves labor efficiency, and greatly reduces labor costs.

[0016] 2) The crystal support workpiece plate clamping groove in the device positions the crystal support workpiece plate to prevent displacement of the crystal support workpiece plate, ensuring that each crystal support is bonded at a fixed point, thereby improving the accuracy of gluing.

[0017] 3) The positioning support rod in this device can prevent the sliding displacement of the silicon crystal block when the glue is not dry. It effectively locates the horizontal position of the square rod crystal silicon. The front end material of the positioning support rod is selected from soft materials such as PP, PVC, rubber, bakelite, etc., which can effectively prevent the use of metal materials to scratch the silicon block.

[0018] 4) This device does not need to carry the counterweight, which not only saves heavy physical labor but also reduces the safety hazards caused by carrying the iron counterweight back and forth. It completely avoids the risk of people being injured by the counterweight falling when carrying the counterweight manually.

[0019] 5) Using a balancing cylinder can disperse the force on a single point of the cylinder, so that the force between the entire silicon block and the workpiece plate is even, ensuring that the entire silicon crystal block is firmly glued.

[0020] 6) The lifting cylinder can be controlled by the cylinder control switch to facilitate manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a structural diagram of the pressing plate device of the present invention; Figure 2 This is a structural diagram of the jacking device of the present invention; Figure 3 Schematic diagram of the operation of the present invention Figure 1 ; Figure 4 Schematic diagram of the operation of the present invention Figure 2 .

[0022] In the figure: fixing bolt 1, profile bracket 2, panel 3, middle opening 4, cylinder support rod 5, positioning support rod 6, pressure plate 7, hinge 8, back plate 9, rotating connector 10, hook rod 11, hook card 12, cylinder control switch 13, frame 14, balancing cylinder 15, lifting cylinder 16, magnetic ring switch 17, cylinder fixing plate 18, adjusting bolt 19, crystal support workpiece plate slot 20, crystal support workpiece plate platform 21, crystal support workpiece plate 22, resin plate 23, silicon crystal 24. DETAILED DESCRIPTION

[0023] In the sticking process of silicon wafer slicing, after the silicon sticks are glued, multiple counterweights are needed to rely on the gravity of the heavy objects to press the workpiece board, resin board, and silicon crystal block. The counterweights are used to press the sticks to eliminate the remaining air bubbles in the glue surface to ensure that the silicon block and the resin board, the resin board and the workpiece board are firmly bonded and there is no empty glue. The counterweights are generally 20-30KG iron blocks. After each group of silicon sticks are glued, 3-4 counterweights are required to press on the silicon crystal stick to ensure that the glue surface of the entire silicon block is evenly stressed.

[0024] The present invention mainly solves the problem that the counterweight needs to be manually carried up and down in the process of gluing crystalline silicon slices in the silicon wafer production and manufacturing process. A silicon block gluing and pressing device is proposed, which can realize the function of pressing the glued silicon rod workpiece, eliminating bubbles on the gluing surface, preventing empty glue, and ensuring the firm gluing of the silicon block and the resin plate, and the resin plate and the workpiece plate. The present invention realizes the silicon block gluing and pressing function by using workpiece plate fixing device, cylinder mechanism, locking plate, silicon block alignment device, locking device, controller and other mechanisms. The specific scheme is as follows: The preferred solution is Figure 1 to Figure 2 As shown, a silicon block adhesive pressing device mainly includes a pressing plate device and a lifting device. The two forces of the pressing plate device and the lifting device mutually squeeze the crystal support workpiece plate and the silicon crystal rod to play the role of adhesive pressing rod, replacing the traditional counterweight pressing rod. The pressing plate device includes a profile support 2, a back plate 9 is provided on the top of the profile support 2, the back plate 9 is connected to the pressing plate 7 through a hinge 8, and a cylinder support rod 5 is connected between the back plate 9 and the pressing plate 7; a panel 3 is provided on the top of the profile support 2, and a middle opening 4 is provided in the middle of the panel 3; a silicon block lifting device is installed at the middle opening 4; The pressing plate device is mainly used to give downward force to the silicon crystal rod. The profile bracket 2, the pressing plate 7, and the panel 3 of the pressing plate device are all made of stainless steel, and the profile bracket 2 is an aluminum alloy profile bracket. The silicon block lifting device is used to be installed at the middle opening 4 to form a nested structure combination. The stainless steel panel and the stainless steel back plate are at a 90° angle. The height of the stainless steel back plate is consistent with the height of the silicon block and the crystal support workpiece plate assembly.

[0025] The upper end of the stainless steel back plate is connected to the stainless steel pressure plate through a combination hinge. A retractable cylinder support rod is set on each side of the stainless steel back plate to support the stainless steel pressure plate and facilitate the opening and closing of the stainless steel pressure plate. The opening and closing of the stainless steel pressure plate is completed by the hinge and the retractable cylinder support rod.

[0026] Two rotating connectors are configured on the upper end of the stainless steel pressure plate to connect the two stainless steel hook rods. There are two hooks at the front end of the aluminum alloy profile bracket, and the stainless steel pressure plate is fixed by hooking the stainless steel hook rods on the hooks. When the silicon crystal block is lifted up by the figure-mechanism, the stainless steel pressure plate is fixed and stressed, and the reaction force plays the role of a pressure rod.

[0027] The silicon block lifting device includes a frame 14, on which a lifting cylinder 16 is provided. The lifting cylinder 16 is used to drive a crystal support workpiece plate table 22 to move up and down. A crystal support workpiece plate clamping groove 20 is provided on the top surface of the crystal support workpiece plate table 22. The crystal support workpiece plate clamping groove 20 is used to fix a crystal support workpiece plate 21. A resin plate 23 is provided on the crystal support workpiece plate 21. The resin plate 23 is used to place silicon crystals.

[0028] The lifting device is used to give the crystal support workpiece plate an upward force. The crystal support workpiece plate table 22 of the lifting device is made of stainless steel, and the frame 14 is an aluminum alloy profile bracket. The stainless steel crystal support workpiece plate table and the stainless steel panel are on the same plane to form a gluing workbench. The frame 14 is fixed to the ground by fixing bolts.

[0029] The lower surface of the stainless steel pressing plate is attached with a soft material plate of the same size such as PP, PVC, rubber, bakelite, etc. to prevent the metal material from scratching the silicon crystal block.

[0030] Preferably, a rotating connector 10 is provided on the end face of the pressing plate 7 , and the rotating connector 10 is rotatably connected to a hook-shaped rod 11 , and the hook-shaped rod 11 is adapted to a hook card 12 , and the hook card 12 is installed on the profile bracket 2 ; the hook-shaped rod 11 is located on the opposite side of the back plate 9 .

[0031] Preferably, a row of positioning support rods 6 are provided on the side of the back plate 9. A row of positioning support rods is provided in the middle of the stainless steel back plate to position the horizontal position of the silicon block. When in use, the silicon block is close to the positioning support rods to prevent the sliding displacement of the silicon block when the glue is not dry. The front end material of the positioning support rod is selected from soft materials such as PP, PVC, rubber, bakelite, etc. to prevent the use of metal materials to scratch the silicon block.

[0032] Preferably, a fixing bolt 1 is provided at the bottom of the profile bracket 2, and a cylinder control switch 13 is provided at the side of the profile bracket 2. The cylinder control switch of the aluminum alloy profile bracket is used to control the up and down movement of the jacking cylinder.

[0033] Preferably, the lifting cylinder 16 is mounted on the top of the frame 14 through a cylinder fixing plate 18. The cylinder fixing plate fixes a lifting cylinder, and provides an upward force to the wafer support workpiece plate through the lifting cylinder.

[0034] Preferably, a plurality of balancing cylinders 15 are provided on the top of the frame 14, and the plurality of balancing cylinders 15 are evenly distributed around the lifting cylinder 16. There are four balancing cylinders around the lifting cylinder. The balancing cylinder can disperse the upward force of the lifting cylinder to the surroundings, and the balancing cylinder and the lifting cylinder act simultaneously, so that the entire stainless steel crystal support workpiece plate table connected to the balancing cylinder and the lifting cylinder is evenly stressed.

[0035] Preferably, a magnetic ring switch 17 is provided on the lifting cylinder 16 .

[0036] Preferably, the telescopic rod of the lifting cylinder 16 is connected to the crystal support workpiece plate table 22 through an adjusting bolt 19. An adjusting bolt is provided at the connection between the lifting cylinder and the stainless steel crystal support workpiece plate table. The shaft length of the lifting cylinder can be adjusted by adjusting the bolt, thereby adjusting the height of the stainless steel crystal support workpiece plate table to ensure that the stainless steel crystal support workpiece plate table is at the same level as the stainless steel panel.

[0037] There is a crystal support workpiece plate clamping groove on the stainless steel crystal support workpiece plate table. The crystal support workpiece plate is clamped in the clamping groove and fixed in position. Using the crystal support workpiece plate clamping groove to position the crystal support workpiece plate can prevent the crystal support workpiece plate from sliding when the glue is not dry.

[0038] Preferably, the rotary connector 1 is a rotary motor, which is used to drive the hook rod 11 to rotate.

[0039] A silicon block gluing method of a silicon block gluing and pressing device comprises the following steps: S1. Open and rotate the two hook-shaped rods, and then push the pressing plate upwards. The pressing plate is supported by the cylinder support rod and will not fall down. S2, placing the crystal support workpiece plate on the crystal support workpiece plate table, and clamping it between the crystal support workpiece plate clamping slots; S3, apply the first glue on the crystal support workpiece plate and then place the resin plate on it; S4, after applying glue for the second time on the resin board, place the square silicon crystal; S5. The square silicon crystal sticks close to the positioning support rod to prevent the square silicon crystal sticks from sliding when the glue is not dry; S6. After gluing is completed, pull down the pressing plate, and then rotate the two hook-shaped rods to hook the two hooks at the front end of the profile bracket; S7, twist the cylinder control switch to start the lifting cylinder to lift up; the lifting cylinder is forced upward by the crystal support workpiece plate table surface, and the pressure plate is forced downward by the square silicon crystal, thereby playing the role of adhesive pressing rod; S8. After waiting for the glue to solidify, twist the cylinder control switch to reset the lifting cylinder downward, open the two hook-shaped rods, flip up the pressure plate, and take out the crystal support assembly with the glue solidified; after a single operation is completed, proceed to glue the next silicon crystal block.

[0040] The present invention can replace the traditional inefficient method of placing counterweights to press the rods for gluing. The present invention has made great progress in the traditional process. In the traditional process of gluing silicon rods, multiple counterweights are required to rely on the gravity of the heavy objects to press the workpiece plate, resin plate, and silicon block of the sticking rod. However, the present invention does not use the principle of gravity, but uses the upward force of the lifting cylinder and the downward reaction force of the stainless steel pressing plate to achieve the rod pressing function.

[0041] The present invention not only realizes the compaction of silicon rods and workpieces, eliminates bubbles on the adhesive surface, prevents empty adhesive, and ensures the firm adhesion between silicon crystal blocks and resin plates, and between resin plates and workpiece plates, but also, compared with the traditional rod pressing process, no longer requires manual lifting of heavy weight iron blocks, greatly reduces the work intensity, reduces labor costs, and improves work efficiency. Manual lifting of heavy objects is no longer required, avoiding the danger of weights falling during the lifting process, and greatly reducing the risk of personal injury. The whole device is simple to operate and has low training costs.

[0042] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A silicon block adhesive rod pressing device, characterized in that: It comprises a profile bracket (2), a back plate (9) is provided on the top of the profile bracket (2), the back plate (9) is connected to the pressing plate (7) via a hinge (8), and a cylinder support rod (5) is connected between the back plate (9) and the pressing plate (7); A panel (3) is provided on the top of the profile support (2), and a middle opening (4) is provided in the middle of the panel (3); a silicon block lifting device is installed at the middle opening (4); The silicon block lifting device comprises a frame (14), the frame (14) is provided with a lifting cylinder (16), the lifting cylinder (16) is used to drive a crystal support workpiece plate table (22) to move up and down, the top surface of the crystal support workpiece plate table (22) is provided with a crystal support workpiece plate clamping groove (20), the crystal support workpiece plate clamping groove (20) is used to fix the crystal support workpiece plate (21), and a resin plate (23) is provided on the crystal support workpiece plate (21), and the resin plate (23) is used to place silicon crystals.

2. The silicon block adhesive pressing device according to claim 1, characterized in that: The end surface of the pressing plate (7) is provided with a rotating connecting piece (10), the rotating connecting piece (10) is rotatably connected to a hook-shaped rod (11), the hook-shaped rod (11) is matched with a hook clamp (12), and the hook clamp (12) is installed on the profile bracket (2); the hook-shaped rod (11) is located on the side opposite to the back plate (9).

3. The silicon block glue pressing device according to claim 1, characterized in that: A row of positioning support rods (6) is provided on the side of the back plate (9).

4. The silicon block adhesive pressing device according to claim 1, characterized in that: A fixing bolt (1) is provided at the bottom of the profile bracket (2), and a cylinder control switch (13) is provided at the side of the profile bracket (2).

5. The silicon block glue pressing device according to claim 1, characterized in that: The lifting cylinder (16) is mounted on the top of the frame (14) via a cylinder fixing plate (18).

6. The silicon block glue pressing device according to claim 1, characterized in that: A plurality of balancing cylinders (15) are arranged on the top of the frame (14), and the plurality of balancing cylinders (15) are evenly distributed around the lifting cylinder (16).

7. The silicon block adhesive rod pressing device according to claim 1, characterized in that: A magnetic ring switch (17) is provided on the lifting cylinder (16).

8. The silicon block adhesive pressing device according to claim 1, characterized in that: The telescopic rod of the lifting cylinder (16) is connected to the crystal support workpiece plate table (22) through an adjusting bolt (19).

9. The silicon block adhesive pressing device according to claim 2, characterized in that: The rotary connecting member (10) is a rotary motor, and the rotary motor is used to drive the hook-shaped rod (11) to rotate.

10. The silicon block gluing method of the silicon block gluing and pressing device according to claim 1, characterized in that The following steps are involved: S1. Open and rotate the two hook-shaped rods, and then push the pressing plate upwards. The pressing plate is supported by the cylinder support rod and will not fall down. S2, placing the crystal support workpiece plate on the crystal support workpiece plate table, and clamping it between the crystal support workpiece plate clamping slots; S3, apply the first glue on the crystal support workpiece plate and then place the resin plate on it; S4, after applying glue for the second time on the resin board, place the square silicon crystal; S5. The square silicon crystal sticks close to the positioning support rod to prevent the square silicon crystal sticks from sliding when the glue is not dry; S6. After gluing is completed, pull down the pressing plate, and then rotate the two hook-shaped rods to hook the two hooks at the front end of the profile bracket; S7, twist the cylinder control switch to start the lifting cylinder to lift up; the lifting cylinder is forced upward by the crystal support workpiece plate table surface, and the pressure plate is forced downward by the square silicon crystal, thereby playing the role of adhesive pressing rod; S8. After waiting for the glue to solidify, twist the cylinder control switch to reset the lifting cylinder downward, open the two hook-shaped rods, flip up the pressure plate, and take out the crystal support assembly with the glue solidified; after a single operation is completed, proceed to glue the next silicon crystal block.

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