Laminating device for laminated glass production

By introducing a balancing mechanism and lifting components into the laminated glass bonding device, the problem of uneven force on the glass sheet and the device is solved, achieving uniform force on the glass sheet and structural stability of the device, thereby improving the lamination effect and production efficiency.

CN223835199UActive Publication Date: 2026-01-27HUBEI DINGJI GLASS TECH CO LTD
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Patent Information

Application Number
CN202423240463.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-01-27
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing laminated glass bonding devices suffer from uneven stress on the glass sheets and uneven stress on the entire device, which affects the bonding effect.

Method used

A glass-jointing device is designed, comprising a glass-jointing base, a glass-jointing plate, a balancing mechanism, a fixing mechanism, and a lifting part. The device achieves uniform force on the glass plate through a balancing column, a hydraulic cylinder, and a pressure-compensating diversion valve, and enables the glass-jointing plate to be lifted and flipped. The lifting column and rotating components ensure the structural strength and stability of the device.

Benefits of technology

This resulted in uniform stress on the glass plate, improved the lamination effect, enhanced the structural strength of the device, reduced mechanical wear, increased production efficiency, and lowered costs.

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Abstract

The utility model provides a laminating device for laminated glass production, which comprises a horizontally arranged laminating base and a laminating plate arranged above the laminating base, a first fixing mechanism capable of fixing glass is arranged on the laminating plate, and a second fixing mechanism capable of fixing the glass is arranged on the laminating plate. Lifting parts capable of enabling the laminating plate to horizontally move up and down relative to the laminating base are arranged on the two sides of the laminating base, a rotating part capable of enabling the laminating plate to turn over is further arranged on one side of the laminating plate, and a balancing mechanism capable of balancing stress of the laminating plate and a second fixing mechanism capable of fixing glass are arranged on the laminating base; the balance mechanism comprises two pairs of balance columns which are movably embedded in the top surface of the lamination base, and the balance columns synchronously move up and down through a pressure balance device arranged in the lamination base; a plurality of locking holes are formed in the face, where glass is fixed, of the sheet combining plate, locking mechanisms are arranged in the locking holes, the locking mechanisms can lock the balance columns in the locking holes, and when the two pairs of balance columns move downwards, the sheet combining plate can vertically face downwards in a balanced mode.
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Description

Technical Field

[0001] This utility model relates to the field of laminated glass, and in particular to a laminating device for the production of laminated glass. Background Technology

[0002] Laminated glass is a safety glass product made by bonding two or more panes of glass with one or more layers of organic polymer interlayer. Based on the melting point of the interlayer, it can be classified as low-temperature, high-temperature, and insulated laminated glass. When this type of glass breaks, the PVB film holds it together, preventing it from forming sharp fragments, thus providing excellent safety performance.

[0003] However, in the production process of laminated glass, especially in the lamination stage, workers often need to manually support the glass to ensure accuracy, which is not only inefficient but also costly. Therefore, it is particularly important to develop a lamination device that can effectively reduce manual intervention. Consequently, some have designed a lamination device for laminated glass production, such as Chinese Patent Application No. 202322909161.X. This patent proposes a lamination device for laminated glass production, including a substrate, a first placement plate, a second placement plate, and a guide frame. The second placement plate is located on top of the guide frame, next to the first placement plate. A second glass sheet is placed at the top center of the second placement plate, and a limiting mechanism is used to center and fix the second glass sheet to be lamination. By cooperating with the swing arm, the second adapter shaft, the gear, the double-sided gear plate, the guide rail, the third drive component, the double-sided lead screw, the second threaded block, the column, and the rubber sleeve, the possibility of the second glass sheet body shifting during the assembly process can be effectively reduced. By cooperating with the guide frame, the first drive component, the traction lead screw, the first threaded block, the second drive component, the trigger module, the first adapter shaft, the worm gear, the level monitoring module, and the worm, the second glass sheet body can be automatically flipped and assembled during the fixing period.

[0004] However, the aforementioned laminated glass bonding device has the following problems: 1. Uneven force on the glass plate: Relying solely on the guide frame to press down the second placement plate results in uneven force on the glass plate, thus affecting the lamination effect. 2. Uneven force distribution within the device: The second placement plate is only connected to the guide frame on one side, which reduces the structural strength of the entire device and easily leads to a situation where one end is higher than the other, which also affects the lamination effect. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a lamination device for the production of laminated glass, which solves the problems of uneven overall force on the device and uneven force on the glass plate in the prior art.

[0006] The technical solution is as follows:

[0007] A laminating device for laminated glass production includes a horizontally arranged laminating base and a laminating plate arranged above the laminating base. The laminating plate is provided with a first fixing mechanism for fixing the glass. The laminating base has lifting parts on both sides that allow the laminating plate to move up and down relative to the laminating base. The laminating plate also has a rotating part on one side that allows the laminating plate to flip relative to the laminating base. The laminating base is provided with a balancing mechanism for balancing the forces on the laminating plate and a second fixing mechanism for fixing the glass.

[0008] The balancing mechanism includes two pairs of balancing columns that are vertically and movably embedded on the top surface of the composite base. The balancing columns move up and down synchronously through a pressure balancing device provided in the composite base.

[0009] The side of the laminated plate that holds the glass has several locking holes, and a locking mechanism is provided in each locking hole. The locking mechanism can lock the balance column in the locking hole. When the balance column moves downward, the two pairs of balance columns can make the laminated plate receive a balanced vertical downward force.

[0010] Furthermore, the pressure balancing device includes two pressure compensation diversion valves installed in the composite base. The pressure compensation diversion valves are connected to a pair of hydraulic cylinders vertically embedded in the composite base. The pressure compensation diversion valves enable the pair of hydraulic cylinders to move up and down synchronously. The top end face of the hydraulic cylinder is coaxially and fixedly connected to the balance column. The hydraulic cylinder can drive the balance column to move up and down synchronously.

[0011] Furthermore, the first fixing mechanism includes several pairs of movable through holes opened on the laminated plate, and several movable columns are provided in the movable through holes. The axis of the movable columns is perpendicular to the surface of the laminated plate, and both ends of the movable columns protrude from the surface of the laminated plate. The end of the movable column away from the glass plate is fixedly connected to the first cylinder, and the movable columns are distributed on both sides of the glass plate. When the first cylinder moves, it can drive the movable columns to clamp the glass plate.

[0012] Furthermore, the top surface of the composite base is provided with several clearance grooves. When the composite plate is close to the composite base, the moving column is inserted into the clearance groove without contacting the top surface of the composite base.

[0013] Furthermore, the second fixing mechanism includes several pairs of ratchet grooves opened on the top surface of the composite base. The grooves of the ratchet grooves are parallel to the top surface of the composite base, and the ratchet grooves are provided with adjustable locking blocks. The locking blocks can be unidirectionally translated along the ratchet grooves relative to the center of the composite base. The locking blocks are provided with a release mechanism that can release the locking blocks, so that the locking blocks can be freely translated in the ratchet grooves. The glass plate can be fixed on the top surface of the composite base by several locking blocks.

[0014] Furthermore, the release mechanism includes an elastic protrusion movably embedded below the locking block. A spring is provided between the elastic protrusion and the locking block. When the locking block moves towards the glass side, the elastic protrusion is pushed back into the locking block by a ratchet. When moving in the opposite direction, the spring causes the elastic protrusion to protrude out of the locking block and be locked by the ratchet. A pull ring is provided above the locking block, connecting the locking block and the elastic protrusion. Pulling the pull ring compresses the spring, thereby allowing the elastic protrusion to retract into the locking block.

[0015] Furthermore, the lifting unit includes lifting columns vertically arranged on both sides of the composite base. Each lifting column has a guide groove with an opening facing the opposite lifting column. The guide groove is perpendicular to the composite base. A vertical lead screw is provided in the guide groove of one side of the lifting column. A moving block is sleeved on the lead screw, and the output shaft of the first drive motor is coaxially connected to the bottom of the lead screw. When the lead screw rotates about its own axis, it can drive the moving block to move up and down in the guide groove. A moving block is also provided in the other side of the lifting column. The moving block can move up and down freely in the guide groove. The two sides of the composite plate are movably connected to the moving blocks in the guide grooves on both sides. The composite plate can rotate about the straight line formed by the connection points of the two sides and the moving blocks as the axis. When the lead screw rotates, the composite plate moves vertically as a whole.

[0016] Furthermore, the rotating part includes a second drive motor disposed on one side of the moving block. The output shaft of the second drive motor passes through the moving block and the lifting column and is connected to the composite plate, so that the composite plate can rotate about the straight line formed by the connection points of the two sides with the moving block as the axis.

[0017] Furthermore, the lifting column where the second drive motor is located has a clearance opening, which is located on the opposite side of the guide groove of the lifting column so that the output shaft can be connected to the connecting plate. A support block is also provided below the second drive motor. The support block is movably disposed in the clearance opening and can move up and down along the axis of the lifting column. The support block can support the second drive motor and share the pressure on the output shaft.

[0018] Furthermore, the locking mechanism includes a pop-out pin disposed in the locking hole, the axis of the pop-out pin being perpendicular to the pop-out pin, the pop-out pin being coaxially connected to a second cylinder, and a locking through hole being provided on the balance column. After the balance column is inserted into the locking hole, the pop-out pin can be coaxially inserted into the locking through hole, thereby locking the balance column.

[0019] This invention has the following advantages: To address the problem of uneven force on the glass, a pressure balancing device is installed on the laminating base. When the laminating plate descends to the designated position via the lifting column, unilateral drive may still cause uneven force. However, after the balancing column is inserted into the locking hole and descends, the internal pressure balancing diversion valve can balance the forces of the pair of balancing columns, thus ensuring uniform force on the glass. To address the problem of uneven force on the device, the laminating base in this invention has lifting columns on both sides. The laminating plate is positioned between movable blocks movably disposed within the lifting columns on both sides, relatively dispersing the force on the lead screw and reducing mechanical wear. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 This is a schematic diagram of the hydraulic cylinder structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the balance column of this utility model;

[0023] Figure 4 This is a cross-sectional view of the ratchet groove of this utility model.

[0024] In the above-mentioned attached figures: 1. Assembly base; 2. Assembly plate; 3. Balance column; 12. Oil cylinder; 22. Moving through hole; 23. Moving column; 24. First cylinder; 4. Glass plate; 13. Ratchet; 14. Locking block; 141. Release mechanism; 142. Elastic protrusion; 143. Pull ring; 144. Spring; 5. Lifting column; 51. Lead screw; 52. Moving block; 511. Guide groove; 6. First drive motor; 7. Second drive motor; 53. Relief port; 54. Support block; 25. Locking hole; 26. Pop-out pin; 27. Locking through hole; 28. Second cylinder; 8. Relief groove. Detailed Implementation

[0025] The present invention will now be described with reference to the accompanying drawings:

[0026] like Figure 1 As shown, a laminating device for laminated glass production includes a horizontally arranged laminating base 1 and a laminating plate 2 arranged above the laminating base 1. The laminating plate 2 is provided with a first fixing mechanism for fixing the glass. The laminating base 1 has lifting parts on both sides that allow the laminating plate 2 to move up and down relative to the laminating base 1. The laminating plate 2 also has a rotating part on one side that allows the laminating plate 2 to flip relative to the laminating base 1. The laminating base 1 is provided with a balancing mechanism for balancing the force on the laminating plate 2 and a second fixing mechanism for fixing the glass.

[0027] The balancing mechanism includes two pairs of balancing columns 3 vertically and movably embedded on the top surface of the composite base 1. The balancing columns 3 move up and down synchronously through a pressure balancing device provided in the composite base 1.

[0028] like Figure 1 and Figure 3 As shown, the side of the laminated plate 2 that fixes the glass has several locking holes 25. A locking mechanism is provided in the locking holes 25. The locking mechanism can lock the balance column 3 in the locking holes 25. When the balance column 3 moves downward, the two pairs of balance columns 3 can make the laminated plate 2 be subjected to a balanced vertical downward force.

[0029] like Figure 1 and Figure 2 As shown, preferably, the pressure balancing device includes two pressure compensation diversion valves provided in the composite base 1. The pressure compensation diversion valves are connected to a pair of hydraulic cylinders 12 vertically embedded in the composite base 1. The pressure compensation diversion valves enable the pair of hydraulic cylinders 12 to rise and fall synchronously. The top end face of the hydraulic cylinder 12 is coaxially fixedly connected to the balance column 3. The hydraulic cylinder 12 can drive the balance column 3 to move up and down synchronously.

[0030] like Figure 1 As shown, preferably, the first fixing mechanism includes several pairs of movable through holes 22 opened on the composite plate 2. Several movable columns 23 are provided in the movable through holes 22. The axis of the movable columns 23 is perpendicular to the surface of the composite plate 2, and both ends of the movable columns 23 protrude from the surface of the composite plate 2. The end of the movable column 23 away from the glass plate 4 is fixedly connected to the first cylinder 24, and the movable columns 23 are distributed on both sides of the glass plate 4. When the first cylinder 24 moves, it can drive the movable columns 23 to clamp the glass plate 4.

[0031] like Figure 1 As shown, preferably, the top surface of the composite base 1 is provided with several clearance grooves 8. When the composite plate 2 is close to the composite base 1, the moving column 23 is inserted into the clearance groove 8 without contacting the top surface of the composite base 1.

[0032] like Figure 1 and Figure 4 As shown, preferably, the second fixing mechanism includes several pairs of ratchet grooves 13 formed on the top surface of the composite base 1. The grooves of the ratchet grooves 13 are parallel to the top surface of the composite base 1, and the ratchet grooves 13 are provided with adjustable locking blocks 14. The locking blocks 14 can be unidirectionally translated along the ratchet grooves 13 relative to the center of the composite base 1. The locking blocks 14 are provided with a release mechanism 141 that can release the locking blocks 14, so that the locking blocks 14 can be freely translated in the ratchet grooves 13. The glass plate 4 can be fixed to the top surface of the composite base 1 by several locking blocks 14 and cannot be horizontally displaced.

[0033] like Figure 1 and Figure 4As shown, preferably, the release mechanism 141 includes an elastic protrusion 142 movably embedded below the locking block 14. A spring 144 is provided between the elastic protrusion 142 and the locking block 14. When the locking block 14 moves towards the glass side, the elastic protrusion 142 can be pushed back into the locking block 14 by the ratchet 13. When moving in the opposite direction, the spring 144 causes the elastic protrusion 142 to protrude out of the locking block 14 and be locked by the ratchet 13. A pull ring 143 is provided above the locking block 14, which passes through the locking block 14 and connects the elastic protrusion 142. Pulling the pull ring 143 compresses the spring 144, thereby allowing the elastic protrusion 142 to retract into the locking block 14.

[0034] like Figure 1 As shown, preferably, the lifting part includes lifting columns 5 vertically arranged on both sides of the composite base 1. The lifting columns 5 have guide grooves 511 with openings facing the opposite lifting column 5. The guide grooves 511 are perpendicular to the composite base 1. A vertical lead screw 51 is provided in the guide groove 511 of one side of the lifting column 5. A moving block 52 is sleeved on the lead screw 51. The bottom of the lead screw 51 is coaxially connected to the output shaft of the first drive motor 6. When the lead screw 51 rotates about its own axis, it can drive the moving block 52 to move up and down in the guide groove 511. A moving block 52 is also provided in the lifting column 5 on the other side. The moving block 52 can move up and down freely in the guide groove 511. The two sides of the composite plate 2 are movably connected to the moving blocks 52 in the guide grooves 511 on both sides. The composite plate 2 can rotate about the straight line formed by the connection points of the two sides and the moving blocks 52 as the axis. When the lead screw 51 rotates, it causes the composite plate 2 to move vertically as a whole.

[0035] like Figure 1 As shown, preferably, the rotating part includes a second drive motor 7 disposed on one side of the moving block 52. The output shaft of the second drive motor 7 passes through the moving block 52 and the lifting column 5 and is connected to the composite plate 2, so that the composite plate 2 can rotate about the straight line formed by the connection points of the two sides with the moving block 52 as the axis.

[0036] like Figure 1 As shown, preferably, the lifting column 5 where the second drive motor 7 is located has a clearance opening 53. The clearance opening 53 is located on the opposite side of the guide groove of the lifting column 5 so that the output shaft can be connected to the connecting plate 2. A support block 54 is also provided below the second drive motor 7. The support block 54 is movably disposed in the clearance opening 53 and can move up and down along the axis of the lifting column 5. The support block 54 can support the second drive motor 7 and share the pressure on the output shaft.

[0037] like Figure 1 and Figure 3As shown, preferably, the locking mechanism includes a pop-out pin 26 disposed in the locking hole 25. The axis of the pop-out pin 26 is perpendicular to the pop-out pin 26. The pop-out pin 26 is coaxially connected to a second cylinder 28. The balance column 3 is provided with a locking through hole 27. After the balance column 3 is inserted into the locking hole 25, the pop-out pin 26 can be coaxially inserted into the locking through hole 27, thereby locking the balance column 3.

[0038] It should be noted that the power sources of each component of this utility model are not shown in the drawings, and the operation logic of each component is controlled by an unmarked controller. In addition, the utility model mentioned...

[0039] The specific practical method of this embodiment is as follows: First, the glass is fixed on the composite base 1 by the clamping block 14. Then, the side of the composite plate 2 with the glass fixed facing up is made to face upward by the rotating part. Then, the vertical position of the composite plate 2 is adjusted according to the actual situation to facilitate the placement of the glass. After the glass is placed, the first cylinder 24 is started to clamp the glass. Then, the composite plate 2 is moved upward and flipped to prevent interference with the composite base 1 during the rotation. After the composite plate 2 is flipped back to the correct position, the moving part controls the composite plate 2 to move downward. When the balance column 3 is inserted into the locking hole 25, the second cylinder 28 pushes the locking pin to be inserted into the locking through hole 27 and inserted into the opposite side wall of the locking hole 25 to complete the locking. At this time, the oil cylinder 12 pulls the composite plate 2 to clamp the composite base 1. Through the action of the pressure balancing hydraulic valve, each balance column 3 exerts force evenly on the composite plate 2.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A laminating device for laminated glass production, characterized in that: The assembly includes a horizontally arranged composite base (1) and a composite plate (2) arranged above the composite base (1). The composite plate (2) is provided with a first fixing mechanism for fixing the glass. The composite base (1) is provided with lifting parts on both sides that allow the composite plate (2) to move up and down relative to the composite base (1). The composite plate (2) is also provided with a rotating part on one side that allows the composite plate (2) to flip relative to the composite base (1). The composite base (1) is provided with a balancing mechanism for balancing the force on the composite plate (2) and a second fixing mechanism for fixing the glass. The balancing mechanism includes two pairs of balancing columns (3) vertically and movably embedded on the top surface of the composite base (1). The balancing columns move up and down synchronously through a pressure balancing device provided in the composite base. The side of the laminated plate (2) that holds the glass has several locking holes (25). The locking holes (25) are equipped with locking mechanisms that can lock the balance column (3) in the locking holes (25). When the balance column (3) moves downward, the two pairs of balance columns (3) can make the laminated plate (2) be subjected to a balanced vertical downward force.

2. The laminating device for laminated glass production according to claim 1, characterized in that: The pressure balancing device includes two pressure compensation diversion valves installed in the composite base (1). The pressure compensation diversion valves are connected to a pair of cylinders (12) vertically embedded in the composite base (1). The pressure compensation diversion valves enable the pair of cylinders (12) to rise and fall synchronously. The top end face of the cylinder (12) is coaxially fixedly connected to the balance column (3). The cylinder (12) can drive the balance column to move up and down synchronously.

3. The laminating device for laminated glass production according to claim 1, characterized in that: The first fixing mechanism includes several pairs of movable through holes (22) opened on the composite plate (2). Several movable columns (23) are provided in the movable through holes (22). The axis of the movable column (23) is perpendicular to the surface of the composite plate (2), and both ends of the movable column (23) protrude from the surface of the composite plate (2). The end of the movable column (23) away from the glass plate (4) is fixedly connected to the first cylinder (24), and the movable columns (23) are distributed on both sides of the glass plate (4). When the first cylinder (24) moves, it can drive the movable columns (23) to clamp the glass plate (4).

4. A laminating device for laminated glass production according to claim 3, characterized in that: The top surface of the composite base (1) is provided with several clearance grooves (8). When the composite plate (2) is close to the composite base (1), the moving column (23) is inserted into the clearance groove (8) without contacting the top surface of the composite base (1).

5. A laminating device for laminated glass production according to claim 1, characterized in that: The second fixing mechanism includes several pairs of ratchet grooves (13) opened on the top surface of the composite base (1). The grooves of the ratchet grooves (13) are parallel to the top surface of the composite base (1), and there are adjustable locking blocks (14) in the ratchet grooves (13). The locking blocks (14) can be unidirectionally translated relative to the center of the composite base (1) along the ratchet grooves (13). The locking blocks (14) are provided with a release mechanism (141) that can release the locking blocks (14), so that the locking blocks (14) can be freely translated in the ratchet grooves (13). The glass plate (4) can be fixed on the top surface of the composite base (1) by several locking blocks (14).

6. A laminating device for laminated glass production according to claim 5, characterized in that: The release mechanism (141) includes an elastic protrusion (142) movably embedded below the locking block (14). A spring (144) is provided between the elastic protrusion (142) and the locking block (14). When the locking block (14) moves towards the glass side, the elastic protrusion (142) is pushed back into the locking block (14) by the ratchet (13). When moving in the opposite direction, the spring (144) causes the elastic protrusion (142) to protrude out of the locking block (14) and be locked by the ratchet (13). A pull ring (143) is provided above the locking block (14) and connects the locking block (14) and the elastic protrusion (142). Pulling the pull ring (143) compresses the spring (144), thereby allowing the elastic protrusion (142) to retract into the locking block (14).

7. A laminating device for laminated glass production according to claim 1, characterized in that: The lifting unit includes lifting columns (5) vertically arranged on both sides of the composite base (1). Each lifting column (5) has a guide groove (511) with an opening facing the opposite lifting column (5). The guide groove (511) is perpendicular to the composite base (1). A vertical lead screw (51) is installed in the guide groove (511) of one side of the lifting column (5). A moving block (52) is sleeved on the lead screw (51), and the bottom of the lead screw (51) is coaxially connected to the output shaft of a first drive motor (6). When the lead screw (51) rotates about its own axis… The movable block (52) can move up and down in the guide groove (511). The other side of the lifting column (5) is also equipped with a movable block (52). The movable block (52) can move up and down freely in the guide groove (511). The two sides of the composite plate (2) are movably connected to the movable blocks (52) in the guide grooves (511) on both sides respectively. The composite plate (2) can rotate about the straight line formed by the connection points of the two sides and the movable blocks (52) as the axis. When the screw (51) rotates, the composite plate (2) moves as a whole in the vertical direction.

8. A laminating device for laminated glass production according to claim 1, characterized in that: The rotating part includes a second drive motor (7) disposed on one side of the moving block (52). The output shaft of the second drive motor (7) passes through the moving block (52) and the lifting column (5) and is connected to the composite plate (2), so that the composite plate (2) can rotate about the straight line formed by the connection points of the two sides with the moving block (52) as the axis.

9. A laminating device for laminated glass production according to claim 8, characterized in that: The lifting column (5) where the second drive motor (7) is located has a clearance opening (53). The clearance opening (53) is located on the opposite side of the guide groove (511) of the lifting column (5) so that the output shaft can be connected to the connecting plate (2). A support block (54) is also provided below the second drive motor (7). The support block (54) is movably arranged in the clearance opening (53) and can move up and down along the axis of the lifting column (5). The support block (54) can support the second drive motor (7) and share the pressure on the output shaft.

10. A laminating device for laminated glass production according to claim 1, characterized in that: The locking mechanism includes a pop-out pin (26) provided in the locking hole (25). The axis of the pop-out pin (26) is perpendicular to the pop-out pin (26). The pop-out pin (26) is coaxially connected to a second cylinder (28). The balance column (3) is provided with a locking through hole (27). After the balance column (3) is inserted into the locking hole (25), the pop-out pin (26) can be coaxially inserted into the locking through hole (27) to lock the balance column (3).

Citation Information

Patent Citations

  • Laminating device for laminated glass production

    CN221913633U