Film sticking device and production line

Abstract

The present invention relates to the technical field of film pasting equipment, and specifically discloses a film pasting device and a production line, wherein the film pasting device comprises: a bracket; a driving member connected to the bracket; a pressure head connected to the output end of the driving member, and the driving member can drive the pressure head to move back and forth in the vertical direction; an attachment head assembly, used to press the diaphragm; the attachment head assembly is movably connected to the pressure head, and can move relative to the pressure head in the vertical direction, and can move back and forth with the pressure head in the vertical direction; a pressure detection member, connected to the upper end of the attachment head assembly, when the attachment head assembly and the diaphragm are provided with a spacing, the attachment head assembly is connected to the pressure head, and the pressure head and the pressure detection member are provided with a preset spacing; when the attachment head assembly drives the diaphragm to contact the product, the pressure head slides relative to the attachment head assembly in the vertical direction, or the pressure head presses against the pressure detection member. The film pasting device provided by the present invention can accurately control the pressure of the attachment head assembly on the diaphragm, and avoid damage to the product or the phenomenon that the diaphragm is not firmly bonded.

Description

Technical Field

[0001] The present invention relates to the technical field of film pasting equipment, and in particular to a film pasting device and a production line. Background Art

[0002] In the prior art, in the production process of products such as glass panels and substrates, it is often necessary to use a film sticking device to stick a film on the surface of the product to protect the product. When sticking the film, it is often necessary to press the film down and keep it for a certain time so that the film can be firmly attached. Therefore, the film sticking device usually includes a driving member and an attaching head. The driving member is connected to the attaching head and is used to drive the attaching head to press against the film. In order to avoid the damage of the product due to excessive pressure of the attaching head pressing against the product, and to avoid the film being not firmly bonded due to too little pressure, the film sticking device also includes a pressure detection member. In the prior art, the pressure detection member and the attaching head are often movably connected, directly fixedly connected or connected by a spring. However, the direct fixed connection method in the prior art itself will cause the pressure detection member to generate a pressure value, causing noise to the pressure detection value; and for the pressure detection member connected by the spring, when the pressure applied by the attaching head increases linearly, the pressure value detected by the pressure detection member increases nonlinearly, resulting in the detected pressure value not being consistent with the actual pressure value, causing damage to the product or poor adhesion of the film. Summary of the invention

[0003] An object of the present invention is to provide a film sticking device to avoid noise, product damage or loose film adhesion.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A film sticking device, comprising:

[0006] Bracket;

[0007] A driving member connected to the bracket;

[0008] A pressure head connected to the output end of the driving member, and the driving member can drive the pressure head to reciprocate in the vertical direction;

[0009] An attaching head assembly, used for pressing the membrane; the attaching head assembly is movably connected to the pressure head, and can move relative to the pressure head along the vertical direction, and can reciprocate along the vertical direction with the pressure head;

[0010] A pressure detection component is connected to the upper end of the attachment head assembly. When a distance is set between the attachment head assembly and the diaphragm, the attachment head assembly is clamped on the pressure head, and a preset distance is set between the pressure head and the pressure detection component. When the attachment head assembly drives the diaphragm to contact the product, the pressure head slides in a vertical direction relative to the attachment head assembly, or the pressure head presses against the pressure detection component.

[0011] Preferably, the attachment head assembly includes a clamping piece and an attachment head body assembly, the lower end of the clamping piece is connected to the attachment head body assembly, the clamping piece is provided with a clamping hole that penetrates the clamping piece along the vertical direction, the pressure head is slidably clamped in the clamping hole along the vertical direction, and the pressure detection piece is connected to the attachment head body assembly and accommodated in the clamping hole.

[0012] Preferably, the inner wall of the clamping hole is provided with a flange, and the lower surface of the flange can abut against the upper end surface of the pressure head.

[0013] Preferably, the clamping member comprises:

[0014] The first plate and the second plate are arranged at an interval;

[0015] The top plate is in a U-shaped structure and is connected to the upper ends of the first plate and the second plate. The first plate, the second plate and the top plate surround the clamping hole, and the lower side of the top plate forms the flange.

[0016] Preferably, the preset distance between the pressure head and the pressure detection component is 0.1mm-0.2mm.

[0017] Preferably, the lower end of the pressure head is a spherical structure.

[0018] Preferably, the attachment head body assembly comprises:

[0019] A connecting block connected to the clamping member;

[0020] The rubber-coated attachment head is connected to the connection block and is used to press the diaphragm.

[0021] Preferably, the film sticking device further comprises a guide assembly, and the guide assembly comprises:

[0022] A guide rail connected to one of the bracket and the attachment head body assembly and extending along the vertical direction;

[0023] The slide block is provided with a slide groove and is connected to the other of the bracket and the attachment head body assembly. The guide rail is slidably arranged in the slide groove.

[0024] Preferably, the driving member is a cylinder, the film sticking device further comprises a proportional valve, and the cylinder is connected to the proportional valve.

[0025] Another object of the present invention is to provide a production line to reduce the damage rate of products and avoid the phenomenon of loose adhesion of membranes.

[0026] To achieve this object, the present invention adopts the following technical solutions:

[0027] A production line comprises the above-mentioned film sticking device.

[0028] Beneficial effects of the present invention:

[0029] The pressure of the attaching head assembly on the diaphragm is equal to the sum of the pressure value of the pressure detection component, the gravity of the detection component and the gravity of the attaching head assembly. Because the diaphragm adsorbed by the attaching head assembly is spaced from the pressure head and the pressure detection component before it contacts the product, the pressure detection component detects a value of zero. Only when the pressure head applies pressure to the pressure detection component will the pressure head contact the pressure detection component, and the pressure value detected by the pressure detection component will be greater than zero. Therefore, the film attaching device itself will not cause noise interference to the detection of the pressure detection component, and the pressure detection component can accurately detect the pressure value of the pressure head. The pressure head directly presses the pressure detection component to generate a pressure value, that is, the pressure value displayed by the pressure detection component is the actual pressure applied by the pressure head. When the pressure applied by the pressure head increases linearly, the pressure detected by the pressure detection component also increases linearly. Since the sum of the gravity of the detection component and the gravity of the attaching head assembly is a constant value, the pressure value received by the diaphragm also increases linearly. The film attaching device provided by the present invention has no noise interference, can provide linear pressure detection, and can accurately control the pressure of the attaching head assembly on the diaphragm, avoiding damage to the product or the phenomenon of loose adhesion of the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a film sticking device provided by an embodiment of the present invention;

[0031] Figure 2 is a structural schematic diagram of a film sticking device provided by an embodiment of the present invention from another perspective;

[0032] Figure 3 It is a schematic diagram of the structure of the clamping member provided in an embodiment of the present invention.

[0033] In the figure:

[0034] 1. Bracket; 2. Driving part; 3. Press head;

[0035] 4. Attachment head assembly; 41. Snap-on piece; 411. Snap-on hole; 413. First plate; 414. Second plate; 415. Top plate; 4151. Flange; 42. Connection block; 43. Rubber-coated attachment head;

[0036] 5. Pressure testing parts;

[0037] 6. Guide assembly; 61. Guide rail; 62. Slider;

[0038] 7. Proportional valve;

[0039] 10. Diaphragm. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It is also necessary to explain that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all.

[0041] Some directional words are defined in the present invention. Unless otherwise specified, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used to facilitate understanding and therefore do not constitute a limitation on the scope of protection of the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] This embodiment provides a film pasting device for accurately detecting the pressure of the film pasting device on the product during the film pasting process of a product such as a glass panel or a substrate, so as to achieve accurate control of the pressure of the film pasting device and avoid damage to the product or loose adhesion of the film 10.

[0045] like Figure 1As shown, the film attaching device provided in this embodiment includes a bracket 1, a driving member 2, a pressure head 3, an attaching head assembly 4 and a pressure detection member 5. The bracket 1 is used to support various components, and the driving member 2 is used to drive the pressure head 3, the attaching head assembly 4 and the pressure detection member 5 to move in the vertical direction. The lower end of the attaching head assembly 4 is used to press the film 10, and the pressure head 3 is used to press against the pressure detection member 5 to accurately detect the pressure of the film attaching device on the film 10.

[0046] Specifically, the driving member 2 is connected to the bracket 1 , and the pressure head 3 is connected to the output end of the driving member 2 . The driving member 2 can drive the pressure head 3 to move back and forth in the vertical direction.

[0047] The attaching head assembly 4 is movably connected to the pressure head 3, and can move in the vertical direction relative to the pressure head 3, and can reciprocate in the vertical direction with the pressure head 3. The pressure detection part 5 is connected to the upper end of the attaching head assembly 4. When the attaching head assembly 4 and the diaphragm 10 are spaced apart, the attaching head assembly 4 is connected to the pressure head 3, and a preset distance is provided between the pressure head 3 and the pressure detection part 5. When the attaching head assembly 4 drives the diaphragm 10 to contact the product, the pressure head 3 slides in the vertical direction relative to the attaching head assembly 4, or the pressure head 3 presses against the pressure detection part 5. It should be noted that the attaching head assembly 4 provided in this embodiment is provided with a vacuum adsorption hole, and the attaching head assembly 4 first adsorbs the diaphragm 10, and then drives the diaphragm 10 to be attached to the product. In the process of attaching the diaphragm 10 to the product, the diaphragm 10 first contacts the product, and then the attaching head assembly 4 provides downward pressure to the diaphragm 10, and maintains the pressure for a certain period of time so that the diaphragm 10 is bonded to the product.

[0048] The pressure applied by the attaching head assembly 4 to the film 10 in the film attaching device provided in this embodiment is transmitted to the attaching head assembly 4 by the pressure of the pressure head 3 through the pressure detection member 5. When the film 10 adsorbed by the attaching head assembly 4 is spaced apart from the product, the attaching head assembly 4 is clamped on the pressure head 3, and the pressure head 3 and the pressure detection member 5 are spaced apart by a preset distance, thereby ensuring that the pressure of the pressure detection member 5 returns to zero before the film 10 adsorbed by the attaching head assembly 4 is pressed against the product. Furthermore, since the attachment head assembly 4 is clamped on the pressure head 3 at this time, the driving member 2 drives the pressure head 3 to move downward, and the attachment head assembly 4 will also move downward with the pressure head 3. When the diaphragm 10 adsorbed by the attachment head assembly 4 just contacts the product, the attachment head assembly 4 is limited by the product and cannot move further. However, since the pressure head 3 and the pressure detection member 5 are provided with a preset spacing, the driving member 2 still drives the pressure head 3 to slide downward until the pressure head 3 presses against the pressure detection member 5. The driving member 2 continues to drive the pressure head 3 to press the pressure detection member 5 until the pressure value of the pressure detection member 5 reaches the preset value. The pressure detection member 5 transmits the pressure to the attachment head assembly 4, and the attachment head assembly 4 presses down the diaphragm 10. The pressure of the attachment head assembly 4 on the diaphragm 10 is equal to the sum of the pressure value of the pressure detection member 5, the gravity of the pressure detection member 5, and the gravity of the attachment head assembly 4.

[0049] Because before the film 10 adsorbed by the attaching head assembly 4 contacts the product, there is a gap between the pressure head 3 and the pressure detection member 5, and the detection value of the pressure detection member 5 is zero. Only when the pressure head 3 applies pressure to the pressure detection member 5, the pressure head 3 will contact the pressure detection member 5, and the pressure value detected by the pressure detection member 5 will be greater than zero. Therefore, the film attaching device itself will not cause noise interference to the detection of the pressure detection member 5, and the pressure detection member 5 can accurately detect the pressure value of the pressure head 3. The pressure head 3 directly presses the pressure detection member 5 to generate a pressure value, that is, the pressure value displayed by the pressure detection member 5 is the actual pressure applied by the pressure head 3. When the pressure applied by the pressure head 3 increases linearly, the pressure detected by the pressure detection member 5 also increases linearly. Since the sum of the gravity of the detection assembly and the gravity of the attaching head assembly 4 is a constant value, the pressure value of the film 10 also increases linearly. The film attaching device provided in this embodiment has no noise interference, can provide linear pressure detection, can accurately control the pressure of the attaching head assembly 4 on the film 10, and avoid damage to the product or the phenomenon of the film 10 not being firmly bonded.

[0050] like Figure 1 and Figure 2 As shown, the attachment head assembly 4 includes a clamping member 41 and an attachment head body assembly, the lower end of the clamping member 41 is connected to the attachment head body assembly, a clamping hole 411 is provided on the clamping member 41 and passes through the clamping member 41 in the vertical direction, the pressure head 3 is slidably clamped in the clamping hole 411 in the vertical direction, and the pressure detection member 5 is connected to the attachment head body assembly and accommodated in the clamping hole 411. The attachment head assembly 4 is movably clamped with the pressure head 3 through the clamping hole 411, and the clamping structure is simple.

[0051] like Figure 2 and Figure 3 As shown, specifically, the inner wall of the clamping hole 411 is provided with a flange 4151, and the lower surface of the flange 4151 can abut against the upper end surface of the pressure head 3. When the diaphragm 10 adsorbed by the attaching head assembly 4 is spaced apart from the product, the attaching head assembly 4 is suspended on the pressure head 3 under the action of its own gravity, that is, the lower surface of the flange 4151 can abut against the upper end surface of the pressure head 3, so that the clamping member 41 moves back and forth along the vertical direction with the pressure head 3. When the diaphragm 10 adsorbed by the attaching head assembly 4 just contacts the product, the attaching head assembly 4 is limited by the product and cannot move further, but since the pressure head 3 and the pressure detection member 5 are spaced apart by a preset distance, the driving member 2 still drives the pressure head 3 to continue to slide downward in the clamping hole 411 until the pressure head 3 abuts against the pressure detection member 5. After the pressure is maintained, the driving member 2 drives the ram 3 to slide upward in the clamping hole 411 until the upper end surface of the ram 3 abuts against the lower surface of the flange 4151, and the driving member 2 continues to drive the ram 3 to move upward, and the ram 3 will drive the clamping member 41 to move upward.

[0052] In order to reduce the impact force of the pressure head 3 on the pressure detection part 5 and reduce the impact force of the attachment head body assembly on the diaphragm 10, the preset spacing between the pressure head 3 and the pressure detection part 5 is 0.1mm-0.2mm. In order to reduce the contact area between the pressure head 3 and the pressure detection part 5 and ensure a gap value of 0.1mm-0.2mm to avoid generating noise pressure, the lower end of the pressure head 3 is a spherical structure.

[0053] like Figure 3 As shown, the clamping member 41 includes a top plate 415, a first plate 413 and a second plate 414. The first plate 413 and the second plate 414 are arranged at intervals. The top plate 415 is a U-shaped structure. Furthermore, the cross section of the top plate 415 is U-shaped, and the top plate 415 is connected to the upper ends of the first plate 413 and the second plate 414. The first plate 413, the second plate 414 and the top plate 415 surround the clamping hole 411. Furthermore, the space between the first plate 413 and the second plate 414 and the U-shaped structure of the top plate 415 surround the above-mentioned clamping hole 411. The lower side of the top plate 415 forms a flange 4151. When the clamping member 41 is installed, the output shaft of the driving member 2 can pass through the opening of the top plate 415 of the U-shaped structure, and the pressure head 3 can pass through the space between the first plate 413 and the second plate 414, and the clamping member 41 is hung on the pressure head 3. Preferably, the clamping member 41 is an integrally formed structure.

[0054] like Figure 1 As shown, further, the attachment head body assembly includes a connection block 42 and a rubber-coated attachment head 43. The connection block 42 is connected to the clamping member 41. The rubber-coated attachment head 43 is connected to the lower end of the connection block 42 and is used to press the diaphragm 10.

[0055] The driving member 2 is a cylinder. In order to better control the pressure of the driving member 2, preferably, the film sticking device also includes a proportional valve 7. The cylinder is connected to the proportional valve 7. Specifically, the cylinder is connected to the proportional valve 7 through a pipeline (not shown in the figure). Furthermore, the proportional valve 7 and the cylinder are both connected to the compressed air circuit. When the cylinder is pressed down, the proportional valve 7 is connected to the compressed air circuit, and the air circuit of the cylinder is connected to the proportional valve 7. When the cylinder contracts, the air circuit of the cylinder is disconnected from the proportional valve 7 and directly connected to the compressed air circuit.

[0056] like Figure 2 As shown, in order to improve the stability of the attachment head assembly 4 during the up and down movement, preferably, the film attachment device also includes a guide assembly 6, and the guide assembly 6 includes a guide rail 61 and a slider 62. The slider 62 is provided with a slide groove, and the guide rail 61 is slidably arranged in the slide groove. The guide rail 61 is connected to one of the bracket 1 and the attachment head body assembly, and extends in the vertical direction. The slider 62 is connected to the other of the bracket 1 and the attachment head body assembly. Specifically, the side of the connecting block 42 can be connected to the slider 62 or the guide rail 61.

[0057] This embodiment also provides a production line, including the above-mentioned film sticking device. The production line can reduce the damage rate of products and avoid the phenomenon of the film 10 being loosely adhered.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A film sticking device, characterized in that: include: Bracket (1); A driving member (2) connected to the bracket (1); A pressure head (3) connected to an output end of the driving member (2), wherein the driving member (2) is capable of driving the pressure head (3) to move back and forth in a vertical direction; An attaching head assembly (4) for pressing the diaphragm (10); the attaching head assembly (4) is movably connected to the pressing head (3), and is capable of moving relative to the pressing head (3) along the vertical direction, and is capable of reciprocating along the vertical direction with the pressing head (3); A pressure detection component (5) is connected to the upper end of the attachment head assembly (4); when a distance is provided between the attachment head assembly (4) and the diaphragm (10), the attachment head assembly (4) is snap-fitted onto the pressure head (3), and a preset distance is provided between the pressure head (3) and the pressure detection component (5); when the attachment head assembly (4) drives the diaphragm (10) to contact the product, the pressure head (3) slides in a vertical direction relative to the attachment head assembly (4), or the pressure head (3) presses against the pressure detection component (5); The attachment head assembly (4) comprises a clamping piece (41) and an attachment head body assembly, the lower end of the clamping piece (41) is connected to the attachment head body assembly, the clamping piece (41) is provided with a clamping hole (411) penetrating the clamping piece (41) along the vertical direction, the pressure head (3) is slidably clamped in the clamping hole (411) along the vertical direction, and the pressure detection piece (5) is connected to the attachment head body assembly and accommodated in the clamping hole (411); The inner wall of the clamping hole (411) is provided with a flange (4151), and the lower surface of the flange (4151) can abut against the upper end surface of the pressing head (3); The clamping member (41) comprises: The first plate (413) and the second plate (414) are arranged at intervals; A top plate (415) having a U-shaped structure and connected to the upper ends of the first plate (413) and the second plate (414); the first plate (413), the second plate (414) and the top plate (415) enclose the clamping hole (411); and the flange (4151) is formed on the lower side of the top plate (415); The lower end of the pressure head (3) is a spherical structure; The film sticking device further comprises a guide component (6), wherein the guide component (6) comprises: A guide rail (61) connected to the bracket (1) and one of the attachment head body components, and extending along the vertical direction; The slide block (62) is provided with a slide groove and is connected to the bracket (1) and the other of the attachment head body components, and the guide rail (61) is slidably disposed in the slide groove.

2. The film sticking device according to claim 1, characterized in that: The preset distance between the pressure head (3) and the pressure detection member (5) is 0.1 mm-0.2 mm.

3. The film sticking device according to claim 1, characterized in that: The attachment head body assembly comprises: A connecting block (42) connected to the clamping member (41); The rubber-coated attachment head (43) is connected to the connection block (42) and is used to press the diaphragm (10).

4. The film sticking device according to claim 1, characterized in that: The driving member (2) is a cylinder, and the film sticking device further comprises a proportional valve (7), and the cylinder is connected to the proportional valve (7).

5. A production line, characterized in that: The invention comprises the film sticking device as described in any one of claims 1 to 4.

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