Flexible strip product laminating device

Abstract

The present invention relates to the technical field of laminating devices, and specifically to a laminating device for flexible strip products, which aims to solve the technical problem that bubbles are easily generated during mechanical laminating of existing flexible strip products. The following technical scheme is adopted: it includes a frame, on which a rolling mechanism and two sliding adsorption mechanisms are arranged, and the two sliding adsorption mechanisms are distributed left and right; the sliding adsorption mechanism includes a first linear pair and a first vacuum suction head, the fixed part of the first linear pair is fixed on the frame and the moving part moves up and down, and the first vacuum suction head is fixed to the lower end of the moving part of the first linear pair; the rolling mechanism includes a pressing wheel and a driving part, the driving part is installed on the frame, and the pressing wheel is rotatably installed on the driving part and is used to roll the flexible strip product.

Description

Technical Field

[0001] The invention relates to the technical field of laminating devices, in particular to a laminating device for flexible belt-shaped products. Background Art

[0002] Flexible strip products that need to be attached can be seen everywhere in life, such as single-sided tape, double-sided tape, etc. For example, in the liquid crystal display industry, double-sided tape is attached to the backlight panel. The existing flexible strip products are mostly attached manually, which is inefficient, and the position accuracy of the product attachment is difficult to accurately control, and bubbles are easily generated during the bonding process; in a few cases, mechanical bonding is used, and the corresponding bonding device includes a rolling mechanism and an adsorption mechanism. The rolling mechanism and the adsorption mechanism move in an integrated manner in the left and right directions. First, the adsorption mechanism adsorbs the flexible strip product, and then the pressure wheel is pressed down. The pressure wheel and the adsorption mechanism move to the right as a whole to bond the flexible strip product. Compared with manual bonding, the bonding efficiency is greatly improved, but because the adsorption mechanism slides on the surface of the product, it is easy to leak air between the adsorption mechanism and the flexible strip product, causing the flexible strip product to fall, thereby generating bubbles and other undesirable problems. Summary of the invention

[0003] The invention aims to solve the technical problem that bubbles are easily generated during mechanical bonding of existing flexible strip products.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The flexible strip product laminating device comprises a frame, on which a rolling mechanism and two sliding adsorption mechanisms are arranged, and the two sliding adsorption mechanisms are distributed on the left and right; the sliding adsorption mechanism comprises a first linear pair and a first vacuum suction head, a fixed part of the first linear pair is fixed on the frame and a moving part moves up and down, and the first vacuum suction head is fixed to the lower end of the moving part of the first linear pair; the rolling mechanism comprises a pressure wheel and a driving part, the driving part is installed on the frame, and the pressure wheel is rotatably installed on the driving part and is used to roll the flexible strip product.

[0006] The present invention also provides another improved flexible strip product laminating device, which replaces the sliding adsorption mechanism at the end of the product with a rotating adsorption mechanism, the rotating adsorption mechanism includes a rotating plate and a second vacuum suction head, the middle part of the rotating plate is hinged to the frame and the hinge axis is arranged front to back, the second vacuum suction head is fixed to the lower end of the rotating plate and is located on the right side of the first vacuum suction head during adsorption, a first impact rod located below its hinge axis is fixed to the rotating plate, and a second impact rod is also fixed to the rolling mechanism, and when the rolling mechanism approaches the rotating adsorption mechanism, the second impact rod pushes the first impact rod to rotate the rotating plate.

[0007] Furthermore, the lower end surfaces of the first vacuum suction head and the second vacuum suction head are both U-shaped groove structures, and the width of the U-shaped groove is equal to the width of the flexible strip product to be bonded.

[0008] The beneficial effects of the present invention are:

[0009] 1) The flexible strip product laminating device provided by the present invention is provided with two sliding adsorption mechanisms and a rolling mechanism. The flexible strip product is adsorbed by the two sliding adsorption mechanisms, and the rolling mechanism moves to make the flexible strip product closely laminating. Compared with the existing mechanical laminating, the suction head does not need to move a long distance on the product surface, which greatly reduces the probability of the suction head being separated from the product, thereby solving the problem of bubbles being easily generated in the existing mechanical laminating;

[0010] 2) The flexible strip product laminating device provided by the present invention is also provided with a rotating adsorption mechanism. Through the cooperation of the rotating plate, the first impact rod and the second impact rod, when the pressure head rolls to the end of the flexible strip product, the second vacuum suction head will make an arc motion along the surface of the flexible strip product to lift the product. When the product falls off from the suction head, the time for the end of the product to fall is extended, providing sufficient time for the pressure wheel to roll, simulating the operation of human hands, thereby avoiding the generation of bubbles at the end of the product;

[0011] 3) The flexible strip product laminating device provided by the present invention is also provided with a rotating adsorption mechanism. Through the cooperation of the rotating plate, the first impact rod and the second impact rod, when the pressure head rolls to the end of the flexible strip product, the second vacuum suction head will make a circular motion along the surface of the flexible strip product to rotate and swing the product to lift it. Compared with the vertical lifting scheme, the deformation of the product end after lifting is reduced, so that the S-shape of the product end is transformed into an arc with a large radius, which relatively increases the contact area between the product and the suction head, reduces the possibility of the product falling, and thus reduces the possibility of bubbles.

[0012] 4) The flexible strip product laminating device provided by the present invention, under the action of the striker, when rolling to a specific position at the end of the product, the second vacuum suction head will automatically rotate to the right without any control and drive, with ingenious design, simple structure and reliable performance;

[0013] 5) In the flexible strip product laminating device provided by the present invention, the lower end surface of the suction head is set as a U-shaped groove structure, which can limit the position of the flexible strip product, effectively avoiding the deviation and tilt of the flexible strip product during laminating, thereby ensuring the position accuracy of the product laminating. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 is a schematic diagram of the structural state of the laminating device of the present invention before laminating;

[0016] Figure 2 It is a schematic diagram of the structural state of the laminating device of the present invention when rolling to the end of the product;

[0017] Figure 3 It is a schematic structural diagram of the vacuum suction head of the present invention.

[0018] In the figure:

[0019] 1┄ sliding adsorption mechanism; 11┄ first linear pair; 12┄ first vacuum suction head;

[0020] 2┄ rolling mechanism; 21┄ pressing wheel; 22┄ second linear pair; 23┄ third linear pair; 24┄ second impact rod;

[0021] 3┄ Strip board;

[0022] 4┄rotating adsorption mechanism; 41┄rotating plate; 42┄second vacuum suction head; 43┄first impact rod; 44┄tension spring; 45┄limiting member; 46┄connecting plate;

[0023] 5┄ rack. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] Reference Figures 1 to 3The flexible strip product laminating device of the present invention comprises a frame 5, on which a rolling mechanism 2 and two sliding adsorption mechanisms 1 are arranged, and the two sliding adsorption mechanisms 1 are distributed on the left and right; the sliding adsorption mechanism 1 comprises a first linear pair 11 and a first vacuum suction head 12, the fixing part of the first linear pair 11 is fixed on the frame 5 and the moving part moves up and down, and the first vacuum suction head 12 is fixed to the lower end of the moving part of the first linear pair 11; the rolling mechanism 2 comprises a pressing wheel 21 and a driving part, the driving part is installed on the frame 5, and the pressing wheel 21 is rotatably installed on the driving part and is used to roll the flexible strip product. During specific implementation, the linear pair can adopt any linear structure commonly used in the mechanical field, such as a cylinder, a linear motor, a linear guide, etc., but no matter which method is adopted, it includes a fixed part and a movable part, and the movable part is slidably arranged on the fixed part. For example, when a cylinder is used, the fixed part is the cylinder body, and the movable part is the piston and the piston rod; the first vacuum suction head 12 needs to be connected to the vacuum pump; the fixed part of the first linear pair 11 can be fixed to the frame 5 directly or indirectly through other parts; the pressure wheel 21 should be located in the working plane of the suction head so that the product can be pressed down; the driving part can adopt a linear driving mechanism commonly used in this field, such as a cylinder, a motor synchronous belt, a linear guide, a screw pair, and their combinations. When in use, first control the two first vacuum suction heads 12 to be at the same suction level, absorb and lift the flexible strip product to just above the attached accessory, and leave a certain gap with the product bonding plane (note that the suction head at the head end of the product should leave a certain distance from the head end of the product for the initial rolling), and then the pressing wheel 21, under the action of the driving member, presses down the head end of the product exposed at the suction head to bond it to the attachment to be bonded, the first vacuum suction head 12 at the head end of the product is de-vacuumed and stops adsorption, the moving part moves upward, so that the first vacuum suction head 12 is separated from the product surface and makes room for the movement of the pressing wheel 21, and the pressing wheel 21 continues to move at a uniform speed toward the end of the product to roll and bond the product, and when approaching the end of the product, the first vacuum suction head 12 of the sliding adsorption mechanism 1 at the end of the product is de-vacuumed and stops adsorption, the moving part moves upward, so that the first vacuum suction head 12 is separated from the product surface and makes room for the movement of the pressing wheel 21, and the pressing wheel 21 continues to move at a uniform speed toward the end of the product until all the flexible strip products are rolled and bonded.

[0026] Furthermore, the lower end surface of the first vacuum suction head 12 is a U-shaped groove structure, and the width of the U-shaped groove is equal to the width of the flexible strip product to be bonded. In specific implementation, the vacuum adsorption hole is opened at the bottom of the U-shaped groove. When attaching, the flexible strip product is stuck in the U-shaped groove, and the two side walls of the U-shaped groove will limit the front and rear deviation of the product, thereby ensuring the position accuracy of the product bonding.

[0027] Furthermore, a strip plate 3 is fixed on the frame 5, the long side of the strip plate 3 is arranged in the left-right direction, and two strip holes are provided on the strip plate 3, the long side of each strip hole is arranged in the left-right direction, and the two strip holes are distributed up and down, and the fixing part of the first linear pair 11 is fixed on the strip plate 3 by two bolts respectively inserted in the two strip holes. The distance between the two sliding adsorption mechanisms 1 is adjusted by the movement of the bolts in the strip holes, so that it is suitable for the bonding of products of different lengths. Furthermore, the first vacuum suction head 12 is detachably mounted on the moving part of the sliding adsorption mechanism 1, and by replacing different first vacuum suction heads 12, it can be suitable for the bonding of products of different widths.

[0028] Preferably, the driving member is located behind the sliding adsorption mechanism 1 when it moves, and the driving member includes a second linear pair 22 and a third linear pair 23, the fixing member of the second linear pair 22 is fixed on the frame 5, the moving member of the second linear pair 22 moves left and right, the fixing member of the third linear pair 23 is fixed on the moving member of the second linear pair 22, the moving member of the third linear pair 23 moves up and down, and the pressure wheel 21 is rotatably mounted on the lower end of the moving member of the third linear pair 23 and the rotating shaft is arranged front and back. With this structure, the spatial layout of each component is more reasonable and the performance is reliable.

[0029] The present invention also provides an improved structure based on the above-mentioned laminating device, in which the sliding adsorption mechanism 1 at the end of the product is replaced by a rotating adsorption mechanism 4, the rotating adsorption mechanism 4 includes a rotating plate 41 and a second vacuum suction head 42, the middle part of the rotating plate 41 is hinged on the frame 5 and the hinge axis is arranged front and back, the second vacuum suction head 42 is fixed to the lower end of the rotating plate 41 and is located on the right side of the first vacuum suction head 12 during adsorption, a first striker 43 located below its hinge axis is fixed on the rotating plate 41, and a second striker 24 is also fixed on the rolling mechanism 2, and when the rolling mechanism 2 approaches the rotating adsorption mechanism 4, the second striker 24 pushes the first striker 43 to rotate the rotating plate 41. In specific implementation, the rotating plate 41 can be directly hinged on the frame 5, or hinged on other components fixed on the frame 5; the second vacuum suction head 42 needs to be connected to a vacuum pump; the structure and relative position setting of the first striker 43 and the second striker 24 are easy to design by those skilled in the art, as long as it is ensured that when the pressing mechanism approaches the rotating adsorption mechanism 4, the first striker 43 and the second striker 24 contact and drive the rotating plate 41 to rotate. When in use, the first part of the process is the same as that of the above-mentioned bonding device. When approaching the end of the product, the second impact rod 24 will collide with the first impact rod 43, driving the rotating plate 41 to rotate around its hinge axis, and the second vacuum suction head 42 will slide a small distance along the surface of the product, while swinging and lifting the end of the product. As the pressing wheel 21 moves, the height of the swing and lifting becomes larger and larger, until the second vacuum suction head 42 slides out of the product surface and the product falls. There are three clever points in this improved structure: First, when rolling to the end of the product, the product will be sucked and lifted by the second vacuum suction head 42, which prolongs the time for the product to fall. Since the pressing wheel 21 moves very fast, this extended time will cause the product to be attached to the attached accessory due to the downward pressure of the pressing wheel 21, rather than freely falling to the attached accessory, avoiding the generation of bubbles caused by the first fall and the subsequent rolling; second, if the aforementioned device is used for vertical lifting operation, although it will also prolong the falling time of the product, there is a problem. When vertically lifting, the product will not fall freely to the attached accessory due to the downward pressure of the pressing wheel 21, and the product will not fall freely to the attached accessory due to the first fall and the subsequent rolling. When the product end is S-shaped, air leakage between the suction head and the product may cause the product to fall, which is not worth the loss. Compared with the vertical lifting scheme, the improved structure reduces the deformation of the product end after lifting, so that the S-shape of the product end is transformed into an arc with a large radius, which relatively increases the contact area between the product and the suction head, reduces the possibility of product falling, and thus reduces the possibility of bubble generation; thirdly, when the improved structure is rolled to a specific position at the end of the product under the action of the collision rod, the second vacuum suction head 42 will rotate to the right by itself without any control and drive, and has a simple structure and reliable performance.

[0030] Furthermore, the lower end surfaces of the first vacuum suction head 12 and the second vacuum suction head 42 are both U-shaped groove structures, and the width of the U-shaped groove is equal to the width of the flexible strip product to be bonded. In specific implementation, the vacuum adsorption hole is opened at the bottom of the U-shaped groove. When attaching, the flexible strip product is stuck in the U-shaped groove, and the two side walls of the U-shaped groove will limit the front and rear deviation of the product, thereby ensuring the position accuracy of the product bonding.

[0031] Furthermore, the rotating adsorption mechanism 4 also includes a tension spring 44 and a limiter 45. The upper end of the tension spring 44 is fixed on the frame 5, and the lower end of the tension spring 44 is fixed on the upper end of the rotating plate 41. The elastic force of the tension spring 44 causes the rotating plate 41 to generate a clockwise torque around the hinge axis. The limiter 45 is fixed on the frame 5 and is used to limit the clockwise rotation of the rotating plate 41. When the rotating plate 41 contacts the limiter 45, the second vacuum suction head 42 is in a vertical state. The above-mentioned corresponding structure mainly relies on gravity to fall back to the vertical state, but the friction at the hinge axis will increase with the use time, and it may not be able to return to the vertical state. This structure solves this problem. In the natural state, the tension spring 44 drives the rotating plate 41 to rotate clockwise around the hinge axis, but due to the limit of the limiter 45, the rotating plate 41 can only rotate clockwise until it contacts the limiter plate, and at this time the second vacuum suction head 42 is just in the vertical state. Even if there are other factors such as friction, the second vacuum suction head 42 can be reset under the elastic force of the tension spring 44. When the second impact rod 24 and the first impact rod 43 collide, the rotating plate 41 will rotate counterclockwise around the hinge axis under the forward driving force of the rolling mechanism 2.

[0032] Furthermore, a strip plate 3 is fixed on the frame 5, the long side of the strip plate 3 is arranged in the left-right direction, and two strip holes are provided on the strip plate 3, the long side of each strip hole is arranged in the left-right direction, and the two strip holes are distributed up and down, the fixing member of the first linear pair 11 is fixed on the strip plate 3 by two bolts respectively inserted in the two strip holes, the rotating adsorption mechanism 4 also includes a connecting plate 46, the connecting plate 46 is fixed on the strip plate 3 by two bolts respectively inserted in the two strip holes, the rotating plate 41 is hinged on the connecting plate 46, the upper end of the tension spring 44 is fixed on the connecting plate 46, and the limiter 45 is fixed on the connecting plate 46. The distance between the sliding adsorption mechanism 1 and the rotating adsorption mechanism 4 is adjusted by the movement of the bolts in the strip holes, so as to be suitable for the bonding of products of different lengths. Furthermore, the first vacuum suction head 12 and the second vacuum suction head 42 are detachably mounted on the moving part of the sliding adsorption mechanism 1, and by replacing different vacuum suction heads, it can be suitable for the bonding of products of different widths.

[0033] Preferably, the driving member is located behind the strip plate 3 when it moves, and the driving member includes a second linear pair 22 and a third linear pair 23, the fixing member of the second linear pair 22 is fixed to the frame 5, the moving member of the second linear pair 22 moves left and right, the fixing member of the third linear pair 23 is fixed to the moving member of the second linear pair 22, the moving member of the third linear pair 23 moves up and down, and the pressure wheel 21 is rotatably mounted on the lower end of the moving member of the third linear pair 23 and the rotating shaft is arranged front and back. With this structure, the spatial layout of each component is more reasonable and the performance is reliable.

[0034] The same or similar numbers in the drawings of the embodiments correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. Flexible strip product laminating device, characterized in that: The machine frame (5) is provided with a rolling mechanism (2), a sliding adsorption mechanism (1) arranged at the front end of the product, and a rotating adsorption mechanism (4) arranged at the rear end of the product; The rolling mechanism (2) comprises a pressing wheel (21) and a driving member, wherein the driving member is mounted on the frame (5), and the pressing wheel (21) is rotatably mounted on the driving member and is used to roll the flexible strip product; The sliding adsorption mechanism (1) comprises a first linear pair (11) and a first vacuum suction head (12); the fixed part of the first linear pair (11) is fixed on the frame (5) and the moving part moves up and down; the first vacuum suction head (12) is fixed to the lower end of the moving part of the first linear pair (11); The rotating adsorption mechanism (4) comprises a rotating plate (41) and a second vacuum suction head (42); the middle portion of the rotating plate (41) is hinged to the frame (5) and the hinge axis is arranged front to back; the second vacuum suction head (42) is fixed to the lower end of the rotating plate (41) and is located on the right side of the first vacuum suction head (12) during adsorption; a first impact rod (43) located below the hinge axis is fixed to the rotating plate (41); a second impact rod (24) is also fixed to the rolling mechanism (2); when the rolling mechanism (2) approaches the rotating adsorption mechanism (4), the second impact rod (24) pushes the first impact rod (43) to rotate the rotating plate (41).

2. The flexible strip product laminating device according to claim 1, characterized in that: The lower end surfaces of the first vacuum suction head (12) and the second vacuum suction head (42) are both U-shaped grooves, and the width of the U-shaped groove is equal to the width of the flexible strip product to be bonded.

3. The flexible strip product laminating device according to claim 2, characterized in that: The rotating adsorption mechanism (4) further comprises a tension spring (44) and a limiting member (45); the upper end of the tension spring (44) is fixed to the frame (5); the lower end of the tension spring (44) is fixed to the upper end of the rotating plate (41); the elastic force of the tension spring (44) causes the rotating plate (41) to generate a clockwise moment around the hinge axis; the limiting member (45) is fixed to the frame (5) and is used to limit the rotating plate (41) from rotating clockwise; when the rotating plate (41) contacts the limiting member (45), the second vacuum suction head (42) is in a vertical state.

4. The flexible strip product laminating device according to claim 3, characterized in that: A strip plate (3) is fixed on the frame (5), the long side of the strip plate (3) is arranged in the left-right direction, two strip holes are provided on the strip plate (3), the long side of each strip hole is arranged in the left-right direction, and the two strip holes are distributed up and down, the fixing member of the first linear pair (11) is fixed on the strip plate (3) by two bolts respectively inserted in the two strip holes, the rotating adsorption mechanism (4) further includes a connecting plate (46), the connecting plate (46) is fixed on the strip plate (3) by two bolts respectively inserted in the two strip holes, the rotating plate (41) is hinged on the connecting plate (46), the upper end of the tension spring (44) is fixed on the connecting plate (46), and the limit member (45) is fixed on the connecting plate (46).

5. The flexible strip product laminating device according to claim 4, characterized in that: When the driving member moves, it is located behind the strip plate (3). The driving member comprises a second linear pair (22) and a third linear pair (23). The fixing member of the second linear pair (22) is fixed on the frame (5). The moving member of the second linear pair (22) moves left and right. The fixing member of the third linear pair (23) is fixed on the moving member of the second linear pair (22). The moving member of the third linear pair (23) moves up and down. The pressure wheel (21) is rotatably mounted on the lower end of the moving member of the third linear pair (23) and the rotating shaft is arranged front and back.

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