Membrane material clamping and pre-folding mechanism

Abstract

The utility model discloses a membrane material clamping and pre-folding mechanism which comprises a machine frame and a platen arranged on the machine frame. The membrane material clamping and pre-folding mechanism further comprises a machining area arranged in the center of the platen, a plurality of sets of long edge clamp assemblies used for clamping the long edges of products, a plurality of sets of short edge clamp assemblies used for clamping the short edges of the products and a plurality of sets of corner clamp assemblies used for clamping the corners of the products, wherein the long edge clamp assemblies, the short edge clamp assemblies and the corner clamp assemblies are fixed to the plate face of the platen and distributed on the periphery of the machining area. According to the shape of a product, the long-edge clamp assembly, the short-edge clamp assembly and the corner clamp assembly are sequentially arranged or irregularly and alternately arranged. According to the membrane material clamping and pre-folding mechanism, a membrane material clamping structure is provided, the tensile force and the pre-folding shape of the membrane material are accurately controlled, the membrane material clamping and pre-folding mechanism is more flexible to apply to products, and the problem that bubbles are generated due to the fact that the membrane material makes contact with the edge of a CG firstly when the CG curved surface is attached is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a membrane material clamping and pre-folding mechanism. Background Technology

[0002] In the field of curved screen assembly, film preforming during curved surface lamination is a crucial process. Film preforming is indispensable for curved surface lamination equipment. If the film is not preformed, it is easy for the film to come into contact with the edges first during curved surface lamination, and air bubbles in the middle cannot be expelled.

[0003] Traditional bonding methods simply clamp the film material onto the surface of a silicone pad (a silicone pad is a silicone mat), relying solely on the shape of the silicone pad to compress the film material. This makes it difficult for the film material to completely cover the CG curved surface (a CG curved surface is a curved surface model generated by computer graphics technology. This type of surface is not only used for precise scientific calculations and engineering design, but is also widely used in modern consumer electronics products, especially in the design of curved screens). In particular, the edges of the CG surface tend to come into contact with the film material first, causing air bubbles in the middle of the film material to be unable to escape, resulting in air bubbles. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a pre-folding mechanism for clamping film materials. The purpose of this mechanism is to improve the adhesion between the film material and the silicone pad when the film material is bonded to the CG (Chip-Coated Graphite), pre-form the film material, prevent the film material from contacting the edge of the CG first, and reduce the generation of air bubbles.

[0005] To solve the above-mentioned technical problems, this utility model achieves the following solution: A film material clamping and pre-folding mechanism of this utility model includes a frame and a platform disposed on the frame. The film material clamping and pre-folding mechanism further includes:

[0006] The processing area is located in the center of the worktable;

[0007] Multiple sets of long-side clamp assemblies for clamping the long side of the product, multiple sets of short-side clamp assemblies for clamping the short side of the product, and multiple sets of corner clamp assemblies for clamping the corners of the product are fixed to the surface of the table and distributed around the processing area. Depending on the shape of the product, the long-side clamp assemblies, short-side clamp assemblies, and corner clamp assemblies are arranged sequentially or alternately in an irregular manner.

[0008] Furthermore, the driving structure of the long-side clip assembly and the short-side clip assembly is the same, but the clamping parts are different. The width of the clamping part of the long-side clip assembly is greater than the width of the clamping part of the short-side clip assembly.

[0009] The clamping part includes an upper clamp and a lower clamp arranged vertically.

[0010] Furthermore, the clamping surfaces of both the upper and lower clamps are coated with adhesive.

[0011] Furthermore, the driving structure includes:

[0012] The first power mechanism is fixed to the platform;

[0013] A first directional movable part is driven and connected to the first power mechanism and driven by the first power mechanism to move horizontally in a first direction. The first directional movable part is fixed with a support. The support includes two first upright plates, which are fixed on both sides of the plate surface of the first directional movable part.

[0014] The second power mechanism is installed on the bracket, and the lower clamp is driven to perform lifting and lowering actions by the second power mechanism.

[0015] A drive unit connected to the upper clamp and capable of driving the upper clamp to perform a first-direction avoidance action and driving the upper clamp to rise and fall to achieve a clamping action is provided on the bracket.

[0016] Furthermore, the first power mechanism includes:

[0017] A first-direction double-row guide rail is provided on the first base plate, and the first-direction movable part is fixed on the slide of the first-direction double-row guide rail;

[0018] A first motor is mounted on the first base plate, and the first motor drives the first directional movable part.

[0019] Furthermore, the second power mechanism is fixed between the two first upright plates;

[0020] The two first vertical plates are each provided with a first Z-axis guide rail on their opposite sides, and the lower clamp is slidably connected to the two first Z-axis guide rails through a connecting block;

[0021] The power source of the second power mechanism is a second motor, and the drive shaft of the second motor is connected to a lifting component facing upwards. The lifting component is connected to the connecting block on one side.

[0022] Furthermore, the drive unit includes:

[0023] Z-axis cylinder, the drive shaft of which is connected to a horizontal plate facing upwards, and its housing is fixed to a bracket;

[0024] The first linear guide rail is disposed on the surface of the horizontal plate in a first direction;

[0025] The first directional cylinder is fixed to the first direction of the horizontal plate, the upper clamp is slidably connected to the first linear guide rail, and the upper clamp is also driven by the first directional cylinder.

[0026] Furthermore, the corner clip assembly includes:

[0027] The second base plate and the second vertical plate are vertically connected;

[0028] The Z-axis power mechanism is fixed to the first side of the second vertical plate;

[0029] A Z-axis movable part that is connected to and driven by a Z-axis power mechanism to perform lifting and lowering movements;

[0030] Linear drive mechanism installed in the Z-axis movable part;

[0031] A corner clamping mechanism that is connected to and driven by the linear drive mechanism to perform linear movements.

[0032] Furthermore, the second vertical plate has an elongated hole for the Z-axis movable part to pass through, and its second surface is provided with a second Z-axis guide rail distributed in two rows.

[0033] The power source of the Z-axis power mechanism is a third motor. The drive shaft of the third motor is driven upward to drive the Z-axis movable part. The Z-axis movable part passes through the elongated hole and slides on the second Z-axis guide rail. The Z-axis movable part is provided with a second linear guide rail.

[0034] The power source of the linear drive mechanism is a horizontally positioned fourth motor, which is fixed to the Z-axis movable part and drives the connected slider, which slides on the second linear guide rail.

[0035] The power source of the corner clamping mechanism is a slide cylinder, which is fixed to the slider. The slide cylinder is driven by a cylinder seat, and a clamping cylinder is fixed on the cylinder seat. The clamping cylinder is driven by corner clamps distributed vertically.

[0036] Furthermore, the corner clips are equipped with a bread-like gripping material.

[0037] Compared with the prior art, the beneficial effects of this utility model are: the membrane material clamping and pre-folding mechanism of this utility model provides a membrane material clamping structure, accurately controls the membrane material tension and pre-folding shape, makes the applicable products more flexible, and effectively solves the problem of air bubbles being generated when the membrane material contacts the edge of the CG surface first during CG surface lamination. Attached Figure Description

[0038] Figure 1 This is an overall structural diagram of the membrane material clamping and pre-folding mechanism of this utility model.

[0039] Figure 2 This is a structural diagram of the long-side clamp assembly or the short-side clamp assembly of the membrane material clamping and pre-folding mechanism of this utility model.

[0040] Figure 3 This is a structural diagram of the corner clip assembly of the membrane material clamping and pre-folding mechanism of this utility model.

[0041] The attached diagram is labeled as follows: corner clamp assembly 100, long side clamp assembly 200, short side clamp assembly 300, first base plate 1, first motor 2, first direction double row guide rail 3, second motor 4, first upright plate 5, Z-axis cylinder 6, first Z-axis guide rail 7, first direction movable part 8, horizontal plate 9, lower clamp 10, first linear guide rail 11, first direction cylinder 12, upper clamp 13, lifting component 14, second base plate 15, second upright plate 16, third motor 17, second Z-axis guide rail 18, Z-axis movable part 19, second linear guide rail 20, slider 21, fourth motor 22, slide table cylinder 23, cylinder seat 24, clamping cylinder 25, corner clamp 26. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0043] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0044] Example 1: The specific structure of this utility model is as follows:

[0045] Please refer to the appendix. Figure 1-3 This utility model discloses a membrane material clamping and pre-folding mechanism, including a frame and a platform mounted on the frame. The mechanism also includes a processing area located at the center of the platform, used for placing products. The mechanism further includes multiple sets of long-side clamp assemblies 200 fixed to the platform surface and distributed around the processing area for clamping the long sides of the product, multiple sets of short-side clamp assemblies 300 for clamping the short sides of the product, and multiple sets of corner clamp assemblies 100 for clamping the corners of the product. Depending on the product shape, the long-side clamp assemblies 200, short-side clamp assemblies 300, and corner clamp assemblies 100 are arranged sequentially or alternately without a fixed pattern.

[0046] As shown in FIG. 1, there are two sets of long-side clip assemblies 200 of the present utility model, which are arranged oppositely. There are two sets of short-side clip assemblies 300, which are arranged oppositely. The two sets of long-side clip assemblies 200 and the two sets of short-side clip assemblies 300 are distributed in a "cross" shape. There are four sets of corner clip assemblies 100, and the four sets of corner clip assemblies 100 are respectively arranged in the included angle areas between the long-side clip assemblies 200 and the short-side clip assemblies 300. As Figure 1 shown, the four sets of corner clip assemblies 100, the two sets of long-side clip assemblies 200 and the two sets of short-side clip assemblies form a "rice" shaped structure.

[0047] The drive structures of the long-side clip assembly 200 and the short-side clip assembly 300 are the same, but the clamping parts are different. Among them, the width of the clamping part of the long-side clip assembly 200 is greater than the width of the clamping part of the short-side clip assembly 300; the clamping part includes an upper clip 13 and a lower clip 10 arranged up and down. The clamping surfaces of the upper clip 13 and the lower clip 10 are both rubber-coated. The rubber-coated upper clip 13 and lower clip 10 increase the friction with the film material and prevent the upper clip 13 and the lower clip 10 from not clamping the film material tightly.

[0048] The drive structure includes a first power mechanism, a second power mechanism, and a drive part that is drivingly connected to the upper clip 13 and can drive the upper clip 13 to make an avoidance movement in a first direction and drive the upper clip 13 to lift to achieve a clamping action.

[0049] The first power mechanism is fixed to the platen; the first power mechanism includes a first-direction double-row guide rail 3 provided on a first bottom plate 1, a first motor 2, and a first-direction movable part 8 that is drivingly connected to the first power mechanism and is driven by the first power mechanism to make a horizontal movement in the first direction. The first-direction movable part 8 is fixed to the slide of the first-direction double-row guide rail 3; the first motor 2 is installed on the first bottom plate 1, and the first motor 2 is drivingly connected to the first-direction movable part 8. A bracket is fixed to the first-direction movable part 8, and the drive part is provided on the bracket.

[0050] The bracket includes two first vertical plates 5, and the two first vertical plates 5 are fixed on both sides of the plate surface of the first-direction movable part 8; the above-mentioned first direction is Figure 1 the Y direction shown in Figure 2 and

[0051] corresponds to the long-side clip assembly 200. The short-side clip assembly 300 is perpendicular to the long-side clip assembly 200, and the X direction of its power mechanism is perpendicular to the direction of the power mechanism of the short-side clip assembly 300.

[0052] The two first vertical plates 5 are each provided with a first Z-axis guide rail 7 on their opposite sides, and the lower clamp 10 is slidably connected to the two first Z-axis guide rails 7 through a connecting block.

[0053] The power source for the second power mechanism is a second motor 4. A lifting member 14 is connected to the upward-facing drive shaft of the second motor 4, and the lifting member 14 is connected to the connecting block. The second motor 4 is a tandem motor, which significantly saves space and cost.

[0054] The drive unit includes:

[0055] Z-axis cylinder 6, the drive shaft of which is connected to a horizontal plate 9 facing upwards, and its housing is fixed to the bracket;

[0056] The first linear guide rail 11 is located on the upper surface of the horizontal plate 9 in the first direction;

[0057] The first directional cylinder 12 is fixed to the upper surface of the horizontal plate 9 in a first direction. The upper clamp 13 is slidably connected to the first linear guide rail 11 and is also driven by the first directional cylinder 12.

[0058] The corner clip assembly 100 includes:

[0059] The second base plate 15 and the second vertical plate 16 are vertically connected;

[0060] The Z-axis power mechanism is fixed to the first side of the second vertical plate 16;

[0061] Z-axis movable part 19 is connected to and driven by the Z-axis power mechanism to perform lifting and lowering movements;

[0062] Linear drive mechanism installed in the Z-axis movable part;

[0063] A corner clamping mechanism that is connected to and driven by the linear drive mechanism to perform linear movements.

[0064] The second vertical plate 16 has an elongated hole for the Z-axis movable part to pass through, and its second surface is provided with a double-row distributed second Z-axis guide rail 18;

[0065] The power source of the Z-axis power mechanism is a third motor 17. The drive shaft of the third motor 17 is driven and connected to the Z-axis movable part 19. The Z-axis movable part 19 passes through the elongated hole and slides on the second Z-axis guide rail 18. The Z-axis movable part 19 is provided with a second linear guide rail 20.

[0066] The power source of the linear drive mechanism is a horizontally positioned fourth motor 22, which is fixed to the Z-axis movable part 19 and drives the connected slider 21, which slides on the second linear guide rail 20.

[0067] The power source of the corner clamping mechanism is a slide cylinder 23, which is fixed to the slider 21. The slide cylinder 23 is driven to connect to a cylinder seat 24, and a clamping cylinder 25 is fixed on the cylinder seat 24. The clamping cylinder 25 is driven to connect to corner clamps 26 distributed vertically.

[0068] The corner clips 26 are equipped with adhesive coating. The adhesive coating on the two corner clips 26 increases the friction between them and the film material, preventing the two corner clips 26 from failing to clamp the film material tightly. Example 2:

[0069] The following is the working process of the membrane material clamping and pre-folding mechanism of this utility model:

[0070] Step 1: Each clamp assembly is ejected by a cylinder to create clearance space for the silicone PAD to be inserted. The silicone PAD is then placed into the processing area by a robotic arm.

[0071] Step 2: Each clamp holds the long side, short side, and corner of the membrane material. The long side and short side of the membrane material are respectively pulled back outward and tensioned by the first power mechanism at the bottom of the long side clamp assembly 200 and the short side clamp assembly 300.

[0072] The edges and corners of the membrane material are held in place by the corner clips 26 of the four sets of corner clip assemblies 100, and then the four corners of the membrane material are tensioned by the retraction of the linear drive mechanism.

[0073] Step 3: Use the lifting structure of each clip assembly to attach the film material tightly to the silicone PAD.

[0074] Step four, screen protector application complete.

[0075] The above structure is used to prevent air bubbles in the product.

[0076] In summary, the membrane clamping and pre-folding mechanism of this utility model provides a membrane clamping structure, precisely controls the membrane tension and pre-folding shape, makes the applicable products more flexible, and effectively solves the problem of air bubbles caused by the membrane material contacting the edge of the CG surface first when bonding CG curved surfaces.

[0077] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A membrane material clamping and pre-folding mechanism, comprising a frame and a platform disposed on the frame, characterized in that, The membrane clamping and pre-folding mechanism also includes: The processing area is located in the center of the worktable; Multiple sets of long-side clamp assemblies (200) for clamping the long side of the product, multiple sets of short-side clamp assemblies (300) for clamping the short side of the product, and multiple sets of corner clamp assemblies (100) for clamping the corners of the product are fixed to the surface of the table and distributed around the processing area. Depending on the shape of the product, the long-side clamp assemblies (200), short-side clamp assemblies (300), and corner clamp assemblies (100) are arranged sequentially or alternately in an irregular manner.

2. The membrane material clamping and pre-folding mechanism according to claim 1, characterized in that, The long-side clamp assembly (200) and the short-side clamp assembly (300) have the same driving structure but different clamping parts. The width of the clamping part of the long-side clamp assembly (200) is greater than the width of the clamping part of the short-side clamp assembly (300). The clamping part includes an upper clamp (13) and a lower clamp (10) arranged vertically.

3. The membrane material clamping and pre-folding mechanism according to claim 2, characterized in that, The clamping surfaces of the upper clamp (13) and the lower clamp (10) are both coated with adhesive.

4. The membrane material clamping and pre-folding mechanism according to claim 2, characterized in that, The driving structure includes: The first power mechanism is fixed to the platform; A first direction movable part (8) is driven and connected to the first power mechanism and driven by the first power mechanism to move horizontally in the first direction. The first direction movable part (8) is fixed with a bracket, which includes two first upright plates (5) and the two first upright plates (5) are fixed on both sides of the plate surface of the first direction movable part (8). The second power mechanism is installed on the bracket, and the lower clamp (10) is driven to be connected to the second power mechanism and driven by the second power mechanism to perform lifting and lowering actions; A drive unit is provided on the bracket. The drive unit is connected to the upper clamp (13) and is capable of driving the upper clamp (13) to perform a first-direction avoidance action and driving the upper clamp (13) to rise and fall to achieve a clamping action.

5. The membrane material clamping and pre-folding mechanism according to claim 4, characterized in that, The first power mechanism includes: A first direction double-row guide rail (3) is provided on the first base plate (1), and the first direction movable part (8) is fixed on the slide of the first direction double-row guide rail (3); The first motor (2) is mounted on the first base plate (1) and drives the first directional movable part (8).

6. The membrane material clamping and pre-folding mechanism according to claim 4, characterized in that, The second power mechanism is fixed between the two first upright plates (5); The two first vertical plates (5) are provided with first Z-axis guide rails (7) on their opposite sides, and the lower clamp (10) is slidably connected to the two first Z-axis guide rails (7) through a connecting block. The power source of the second power mechanism is the second motor (4), and the drive shaft of the second motor (4) is connected to the lifting member (14) facing upward. The lifting member (14) is connected to the connecting block on one side.

7. The membrane material clamping and pre-folding mechanism according to claim 4, characterized in that, The drive unit includes: Z-axis cylinder (6), the drive shaft of which is connected to a horizontal plate (9) facing upwards, and its housing is fixed to the bracket; The first linear guide rail (11) is located on the upper surface of the horizontal plate (9) in the first direction; The first directional cylinder (12) is fixed to the upper surface of the horizontal plate (9) in the first direction. The upper clamp (13) is slidably connected to the first linear guide rail (11) and the upper clamp (13) is also driven by the first directional cylinder (12).

8. The membrane material clamping and pre-folding mechanism according to claim 2, characterized in that, The corner clip assembly (100) includes: The second base plate (15) and the second vertical plate (16) are vertically connected. The Z-axis power mechanism is fixed to the first side of the second vertical plate (16); Z-axis movable part (19) is connected to and driven by the Z-axis power mechanism to perform lifting and lowering actions. Linear drive mechanism installed in the Z-axis movable part; A corner clamping mechanism that is connected to and driven by the linear drive mechanism to perform linear movements.

9. A membrane material clamping and pre-folding mechanism according to claim 8, characterized in that, The second vertical plate (16) has an elongated hole for the Z-axis movable part to pass through, and its second surface is provided with a second Z-axis guide rail (18) arranged in two rows. The power source of the Z-axis power mechanism is a third motor (17). The drive shaft of the third motor (17) is driven upward to drive the Z-axis movable part (19). The Z-axis movable part (19) passes through the elongated hole and slides on the second Z-axis guide rail (18). The Z-axis movable part (19) is provided with a second linear guide rail (20). The power source of the linear drive mechanism is a horizontally positioned fourth motor (22), which is fixed to the Z-axis movable part (19) and drives the connecting slider (21), which slides on the second linear guide rail (20). The power source of the corner clamping mechanism is a slide cylinder (23), which is fixed to the slider (21). The slide cylinder (23) is driven to connect to a cylinder seat (24). A clamping cylinder (25) is fixed on the cylinder seat (24). The clamping cylinder (25) is driven to connect to corner clamps (26) distributed vertically.

10. A membrane material clamping and pre-folding mechanism according to claim 9, characterized in that, The corner clip (26) has a gripping adhesive setting.

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