Membrane material clamping and pre-folding mechanism

Abstract

The invention discloses a membrane material clamping and pre-folding mechanism which comprises a rack and a table plate arranged on the rack. 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] The invention relates to the technical field of mechanical manufacturing, in particular to a film material clamping and pre-folding mechanism. Background Art

[0002] In the field of curved screen assembly, the preforming of film materials in curved surface bonding is an important process in this field. The preforming of film materials is essential for curved surface bonding equipment. If the film materials are not preformed, when the curved surface is bonded, the film materials are easy to contact the edges first, and the bubbles in the middle cannot be discharged.

[0003] The traditional bonding method is to simply clamp the film material on the surface of the silicone PAD (silicone PAD is a silicone pad), and only rely on the shape of the silicone PAD itself to squeeze the film material. It is difficult for the film material to completely cover the CG surface (CG surface is a surface model generated by computer graphics technology. This surface is not only used for precise scientific calculations and engineering design, but also widely used in modern consumer electronic products, especially in the design of curved screens). In particular, the edges around the CG are prone to contact with the film material first, resulting in the inability to discharge bubbles in the middle of the film, resulting in bubbles. Summary of the invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a film material clamping pre-folding mechanism. The purpose of designing the mechanism is to improve the fit between the film material and the silicone PAD when the film material is laminated with the CG, pre-form the film material, avoid the film material from contacting the edge of the CG first, and reduce the generation of bubbles.

[0005] In order to solve the above technical problems, the present invention is implemented by the following scheme: A film material clamping and pre-folding mechanism of the present invention comprises a frame and a table plate arranged on the frame, and the film material clamping and pre-folding mechanism also comprises:

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

[0007] A plurality of groups of long side clamp assemblies for clamping the long sides of the product, a plurality of groups of short side clamp assemblies for clamping the short sides of the product and a plurality of groups of corner clamp assemblies for clamping the corners of the product are fixed to the table surface and distributed around the processing area. According to the shape of the product, the long side clamp assemblies, the short side clamp assemblies and the corner clamp assemblies are arranged sequentially or randomly alternately.

[0008] Further, the long side clip assembly and the short side clip assembly have the same driving structure and different clamping parts, wherein 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 comprises an upper clamp and a lower clamp which are arranged one above the other.

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

[0011] Furthermore, the driving structure includes:

[0012] A first power mechanism, fixed to the table;

[0013] A first-direction movable part drivingly connected to the first power mechanism and driven by the first power mechanism to move horizontally in a first direction, wherein the first-direction movable part is fixed with a bracket, and the bracket includes two first vertical plates, and the two first vertical plates are fixed on both sides of the plate surface of the first-direction movable part;

[0014] A second power mechanism is installed on the bracket, and the lower clamp is drivingly connected to the second power mechanism and driven by the second power mechanism to perform a lifting action;

[0015] A driving part is connected to the upper clamp and can drive the upper clamp to avoid the action in the first direction and drive the upper clamp to rise and fall to achieve a clamping action. The driving part is arranged on the bracket.

[0016] Furthermore, the first power mechanism comprises:

[0017] A first direction double-row guide rail is arranged on the first bottom plate, and the first direction movable part is fixed on a slide seat of the first direction double-row guide rail;

[0018] A first motor is installed on the first bottom plate, and the first motor drives and connects to the first direction movable part.

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

[0020] The opposite sides of the two first vertical plates are provided with first Z-axis guide rails, 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, a driving shaft of the second motor is upwardly connected to a lifting member, and a side of the lifting member is connected to the connecting block.

[0022] Furthermore, the driving unit includes:

[0023] A Z-axis cylinder, the driving shaft of which is upwardly connected to a horizontal plate, and the shell of which is fixed to the bracket;

[0024] A first linear guide rail is provided on a first direction of a top surface of the horizontal plate;

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

[0026] Furthermore, the corner clip assembly includes:

[0027] A second bottom plate and a second vertical plate connected vertically;

[0028] A Z-axis power mechanism, fixed to the first surface of the second vertical plate;

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

[0030] A linear drive mechanism installed on the Z-axis movable part;

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

[0032] Furthermore, the second vertical plate has a long hole for the Z-axis movable part to pass through, and the second surface thereof is provided with a second Z-axis guide rail distributed in double rows;

[0033] The power source of the Z-axis power mechanism is a third motor, the driving shaft of the third motor drives upward to connect the Z-axis movable part, the Z-axis movable part passes through the long hole and is slidably connected to the second Z-axis guide rail, and 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 placed fourth motor, which is fixed to the Z-axis movable part and drives a connecting slider, and the slider is slidably connected to 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 and connected to a cylinder seat, on which a clamping cylinder is fixed. The clamping cylinder is driven and connected to corner clamps distributed up and down.

[0036] Furthermore, the corner clips are provided with a bread glue clamp.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows: the film material clamping and pre-folding mechanism of the present invention provides a film material clamping structure, accurately controls the film material tensioning force and the pre-folding shape, is more flexible in applicable products, and effectively solves the problem of bubbles generated when the film material contacts the CG edge first during CG curved surface bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is an overall structural diagram of the film material clamping and pre-folding mechanism of the present invention.

[0039] Figure 2 It is a structural diagram of a long side clamp assembly or a short side clamp assembly of the membrane material clamping pre-folding mechanism of the present invention.

[0040] Figure 3 This is a structural diagram of the corner clip assembly of the membrane material clamping pre-folding mechanism of the present invention.

[0041] Markings in the accompanying drawings: 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 rails 3, second motor 4, first vertical 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 member 14, second base plate 15, second vertical 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 cylinder 23, cylinder seat 24, clamping cylinder 25, corner clamp 26. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. Obviously, the embodiments described in the present invention are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] Embodiment 1: The specific structure of the present invention is as follows:

[0045] Please refer to the attached Figure 1-3 The present invention provides a film material clamping and pre-folding mechanism, comprising a frame and a table disposed on the frame, and the film material clamping and pre-folding mechanism also comprises a processing area, the processing area is disposed in the center of the table, and the processing area is used to place products. The film material clamping and pre-folding mechanism also comprises a plurality of groups of long side clamp assemblies 200 for clamping the long sides of the product, a plurality of groups of short side clamp assemblies 300 for clamping the short sides of the product, and a plurality of groups of corner clamp assemblies 100 for clamping the corners of the product, which are fixed to the table surface and distributed around the processing area. According to the shape of the product, the long side clamp assemblies 200, the short side clamp assemblies 300 and the corner clamp assemblies 100 are arranged sequentially or randomly and alternately.

[0046] like Figure 1As shown, the long side clip assemblies 200 of the present invention are provided in two groups and are arranged opposite to each other, and the short side clip assemblies 300 are provided in two groups and are arranged opposite to each other, and the two groups of long side clip assemblies 200 and the two groups of short side clip assemblies 300 are distributed in a "cross" shape. The corner clip assemblies 100 are provided in four groups, and the four groups of corner clip assemblies 100 are respectively arranged in the angle area between the long side clip assemblies 200 and the short side clip assemblies 300. Figure 1 As shown, four groups of corner clip assemblies 100, two groups of long side clip assemblies 200 and two groups of short side clip assemblies form a "M"-shaped structure.

[0047] The long side clip assembly 200 and the short side clip assembly 300 have the same driving structure, but different clamping parts, wherein 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 coated with rubber, and the rubber-coated upper clip 13 and the lower clip 10 increase the friction between the upper clip 13 and the lower clip 10 and the film material to prevent the upper clip 13 and the lower clip 10 from not clamping the film material tightly.

[0048] The driving structure includes a first power mechanism, a second power mechanism, and a driving unit which is drivingly connected to the upper clamp 13 and can drive the upper clamp 13 to perform an evasive action in a first direction and drive the upper clamp 13 to rise and fall to achieve a clamping action.

[0049] The first power mechanism is fixed to the table; the first power mechanism includes a first direction double-row guide rail 3 arranged on the first base plate 1, a first motor 2, and a first direction movable part 8 that is driven and connected to the first power mechanism and driven by the first power mechanism to move horizontally in the first direction, and the first direction movable part 8 is fixed on the slide seat of the first direction double-row guide rail 3; the first motor 2 is installed on the first base plate 1, and the first motor 2 is driven and connected to the first direction movable part 8, and the first direction movable part 8 is fixed with a bracket, and the driving part is arranged on the bracket.

[0050] The bracket includes two first vertical plates 5, which are fixed on both sides of the plate surface of the first direction movable part 8; the first direction is Figure 1 Neutralization Figure 2 The Y direction shown in the figure corresponds to the long side clip assembly 200 . The short side clip assembly 300 is arranged 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 .

[0051] The second power mechanism is installed on the bracket, and the lower clamp 10 is connected to the second power mechanism and driven by the second power mechanism to perform lifting and lowering actions. The second power mechanism is fixed between the two first vertical plates 5;

[0052] The opposite sides of the two first vertical plates 5 are provided with first Z-axis guide rails 7, 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 of the second power mechanism is the second motor 4, the driving shaft of the second motor 4 is upwardly connected to the lifting member 14, and the lifting member 14 is connected to the connecting block. The second motor 4 is a tandem motor, which can greatly save space and cost.

[0054] The driving unit comprises:

[0055] A Z-axis cylinder 6, the driving shaft of which is upwardly connected to a horizontal plate 9, and the shell of which is fixed to the bracket;

[0056] A first linear guide rail 11 is provided on a first direction of the upper surface of the horizontal plate 9;

[0057] The first direction cylinder 12 is fixed on the first direction of the upper surface of the horizontal plate 9 , and the upper clamp 13 is slidably connected to the first linear guide rail 11 , and the upper clamp 13 is also drivingly connected to the first direction cylinder 12 .

[0058] The corner clip assembly 100 comprises:

[0059] A second bottom plate 15 and a second vertical plate 16 connected vertically;

[0060] A Z-axis power mechanism, fixed to the first surface of the second vertical plate 16;

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

[0062] A linear drive mechanism installed on the Z-axis movable part;

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

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

[0065] The power source of the Z-axis power mechanism is the third motor 17, the driving shaft of the third motor 17 is driven upward to connect the Z-axis movable part 19, the Z-axis movable part 19 passes through the long hole and is slidably connected to the second Z-axis guide rail 18, and 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 placed fourth motor 22, which is fixed to the Z-axis movable portion 19 and drives a connecting slider 21, which is slidably connected to 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 and connected to a cylinder seat 24, on which a clamping cylinder 25 is fixed. The clamping cylinder 25 is driven and connected to corner clamps 26 distributed up and down.

[0068] The clamping adhesive of the corner clips 26 increases the friction between the two corner clips 26 and the membrane material to prevent the two corner clips 26 from not clamping the membrane material tightly.

[0069] Embodiment 2:

[0070] The following is the working process of the film material clamping pre-folding mechanism of the present invention:

[0071] Step 1: Each clamp assembly is withdrawn from the clamp by the cylinder, leaving a space for the silicone PAD to be placed, and the silicone PAD is placed into the processing area by the manipulator;

[0072] Step 2: Each clamp clamps the long side, short side and corner of the film material, and the long side and short side of the film material are respectively retracted outwards through the first power mechanism at the bottom of the long side clamp assembly 200 and the short side clamp assembly 300 to tension the film material;

[0073] The corners of the film material are clamped by the corner clips 26 of the four sets of corner clip assemblies 100, and then the four corners of the film material are tensioned by retreating the linear drive mechanism.

[0074] Step 3: Use the lifting structure of each clamp assembly to press the membrane material against the silicone PAD.

[0075] Step 4: Film pasting is completed.

[0076] The above structure is used to prevent bubbles in the product.

[0077] In summary, the film clamping and pre-folding mechanism of the present invention provides a film clamping structure, accurately controls the tensioning force and pre-folding shape of the film, is more flexible in applicable products, and effectively solves the problem of bubbles generated when the film contacts the CG edge first during CG curved surface bonding.

[0078] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A film material clamping and pre-folding mechanism, comprising a frame and a table arranged on the frame, characterized in that: The film material clamping pre-folding mechanism also includes: The processing area is located in the center of the platen; A plurality of groups of long side clamp assemblies (200) for clamping the long sides of products, a plurality of groups of short side clamp assemblies (300) for clamping the short sides of products, and a plurality of groups of corner clamp assemblies (100) for clamping the corners of products are fixed to the table surface and distributed around the processing area. According to the shape of the product, the long side clamp assemblies (200), the short side clamp assemblies (300) and the corner clamp assemblies (100) are arranged in sequence or randomly and alternately.

2. A film material clamping and pre-folding mechanism according to claim 1, characterized in that: The long side clip assembly (200) and the short side clip assembly (300) have the same driving structure but different clamping parts, wherein 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 portion comprises an upper clamp (13) and a lower clamp (10) which are arranged one above the other.

3. A film 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 rubber.

4. A film material clamping and pre-folding mechanism according to claim 2, characterized in that: The driving structure comprises: A first power mechanism, fixed to the table; A first-direction movable part (8) is connected to the first power mechanism and driven by the first power mechanism to move horizontally in a first direction, the first-direction movable part (8) being fixed with a bracket, the bracket comprising two first vertical plates (5), the two first vertical plates (5) being fixed on both sides of the plate surface of the first-direction movable part (8); A second power mechanism is installed on the bracket, and the lower clamp (10) is drivingly connected to the second power mechanism and driven by the second power mechanism to perform a lifting action; A driving unit is connected to the upper clamp (13) and is capable of driving the upper clamp (13) to perform an evasive action in a first direction and driving the upper clamp (13) to rise and fall to achieve a clamping action. The driving unit is arranged on the bracket.

5. A film material clamping and pre-folding mechanism according to claim 4, characterized in that: The first power mechanism comprises: A first-direction double-row guide rail (3) is arranged on the first bottom plate (1), and the first-direction movable part (8) is fixed on a slide seat of the first-direction double-row guide rail (3); A first motor (2) is mounted on the first base plate (1), and the first motor (2) is driven and connected to the first direction movable part (8).

6. The film material clamping and pre-folding mechanism according to claim 4, characterized in that: The second power mechanism is fixed between the two first vertical plates (5); The opposite sides of the two first vertical plates (5) are each provided with a first Z-axis guide rail (7), and the lower clamp (10) is slidably connected to the two first Z-axis guide rails (7) via a connecting block; The power source of the second power mechanism is a second motor (4), the driving shaft of the second motor (4) is upwardly connected to a lifting member (14), and the lifting member (14) is connected to the connecting block.

7. A film material clamping and pre-folding mechanism according to claim 4, characterized in that: The driving unit comprises: A Z-axis cylinder (6), the driving shaft of which is upwardly connected to a horizontal plate (9), and the shell of which is fixed to the bracket; A first linear guide rail (11) is arranged in a first direction on the upper surface of the horizontal plate (9); The first direction cylinder (12) is fixed on the first direction of the upper plate surface of the horizontal plate (9); the upper clamp (13) is slidably connected to the first linear guide rail (11); and the upper clamp (13) is also drivingly connected to the first direction cylinder (12).

8. The film material clamping and pre-folding mechanism according to claim 2, characterized in that: The corner clip assembly (100) comprises: A second bottom plate (15) and a second vertical plate (16) connected vertically; A Z-axis power mechanism, fixed to the first surface of the second vertical plate (16); A Z-axis movable part (19) which is drivingly connected to the Z-axis power mechanism and driven by the Z-axis mechanism to perform a lifting action; A linear drive mechanism installed on the Z-axis movable part; A corner clamping mechanism is drivably connected to the linear drive mechanism and driven by the linear drive mechanism to perform linear motion.

9. The film material clamping and pre-folding mechanism according to claim 8, characterized in that: The second vertical plate (16) has a long hole for the Z-axis movable part to pass through, and its second surface is provided with a second Z-axis guide rail (18) distributed in double rows; The power source of the Z-axis power mechanism is a third motor (17), the driving shaft of the third motor (17) is driven upward to connect the Z-axis movable part (19), the Z-axis movable part (19) passes through the long hole and is slidably connected to the second Z-axis guide rail (18), and 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 placed fourth motor (22), which is fixed to the Z-axis movable part (19) and drives a connecting slider (21), and the slider (21) is slidably connected to 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), on which a clamping cylinder (25) is fixed, and the clamping cylinder (25) is driven to connect to corner clamps (26) distributed up and down.

10. A film material clamping and pre-folding mechanism according to claim 9, characterized in that: The corner clips (26) are provided for holding the bread glue.

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