阅读说明：本技术 显示面板用薄膜的夹紧装置 (Clamping device for film for display panel ) 是由 朴永旭 于 2020-03-17 设计创作，主要内容包括：本发明的显示面板用薄膜的夹紧装置包括：第一及第二夹紧部,安装在移送机器人手臂的手指部的一侧而分别夹紧显示面板用薄膜的一侧两端部；第三及第四夹紧部,安装在所述手指部的另一侧而分别夹紧所述显示面板用薄膜的另一侧两端部。据此,在用于大型显示面板装置的面积大且厚度薄的薄膜的移载操作时,防止薄膜的两端翘曲的现象,提高大型薄膜移载的效率。(The film clamping device for the display panel comprises: first and second clamping parts mounted on one side of the finger part of the transfer robot arm for clamping two end parts of one side of the film for the display panel; and third and fourth clamping portions attached to the other side of the finger portion and clamping both ends of the other side of the display panel film, respectively. Therefore, when the film transfer device is used for transferring a thin film with a large area of a large-sized display panel device, the phenomenon that two ends of the film are warped is prevented, and the efficiency of transferring the large-sized film is improved.)

1. A clamping device of a film for a display panel, comprising:

first and second clamping parts mounted on one side of the finger part of the transfer robot arm for clamping two end parts of one side of the film for the display panel;

and third and fourth clamping portions attached to the other side of the finger portion and clamping both ends of the other side of the display panel film, respectively.

2. The film clamping device for display panel according to claim 1,

the first to fourth clamping portions respectively include:

a fixed pressing part, wherein one surface of each two end parts of the film is positioned at the position;

and a movable pressing part which is formed in a movable state corresponding to the fixed pressing part and presses and clamps the other surface of the two end parts of the film.

3. The film clamping device for display panel according to claim 1,

the first and second clamping parts are respectively arranged at one side front end part of the finger part and form a straight line in the length direction,

the third and fourth clamping portions are mounted on the finger portion in a state of being located on the other side surface of the finger portion, respectively.

4. The film clamping device for display panel according to claim 1,

the finger part is a double finger part positioned at two outermost sides of the plurality of finger parts.

5. The film clamping device for display panel according to claim 1,

the first to fourth clamping portions respectively include:

a cylinder;

a piston;

a cylinder block connected to the cylinder through the piston;

and a movable pressurizing part which is linked with the cylinder block to pressurize and clamp the film.

6. The film clamping device for display panel according to claim 5,

the first to fourth clamping portions further include: a moving block rotatably connected to the cylinder block by a connecting rod,

the moving pressing portion is connected to a front end of the moving block.

7. The film clamping device for display panel according to claim 5,

the first to fourth clamping portions further include: a fastening block mounted on the finger part,

a fixed pressing part is fixedly formed at one position of the fastening block,

and the movable pressurizing part contacts the upper side surface of the fixed position of the fixed pressurizing part when moving through the air cylinder.

8. The film clamping apparatus for display panel according to claim 6,

with respect to the first to fourth clamping portions,

two side surfaces of the moving block are respectively and rotatably connected to one side of the inclined connecting part,

the other side of the inclined connecting part connects both side surfaces of a fixed block formed on the lower side of the moving block in a fixed state.

Technical Field

The present invention relates to a clamping device for a film for a display panel, and more particularly, to a device capable of clamping a film for a display panel in a large size when transferring the film.

Background

Flexible materials such as films and sheets (sheets) are widely used for packaging materials, electronic components, display panel devices, and the like.

In general, various tests and inspections are performed on a flexible material such as a film used for an electronic device, and an assembling and pasting process is required.

In this case, a transfer device is required for supplying and returning the soft material.

Conventionally, as a method of transferring a soft material, a method of forming grooves with a constant interval at the edge of a soft material such as a film or a sheet and transferring the soft material by engaging the grooves with a transfer means such as a gear has been employed.

In particular, since a display panel device such as a TV, which is in a trend of increasing in size, has a large size of a plurality of films attached to a display panel, a plurality of techniques for fixing the films at the time of supply and return are being popularized and developed.

Korean patent laid-open publication No. 10-1168491 discloses a "printed circuit board and film transfer and press system using a robot", in which a system for transferring a film using a horizontal articulated robot is disclosed.

Grippers are provided on both sides of the arm of the robot, and the film can be transferred and pressed by applying tension to both sides of the film by a plurality of horizontal grippers on both sides.

However, such a conventional structure is suitable for a film to be attached to a relatively small electronic device such as a printed circuit board.

Korean laid-open patent publication No. 10-2006-0059906 discloses a "thin plate support" for supporting a plurality of ridgelines formed on a glass substrate for a large-sized liquid crystal display device when the glass substrate for a large-sized liquid crystal display device is bent by its own weight, the thin plate support being similar to a fork-shaped end effector of a robot, and at least one or more suction means being formed on the support.

That is, a film or a glass substrate having a bending property used for a large-sized display device is prevented from being bent by an adsorption means and prevented from being floated when being transferred.

However, even if a plurality of films are sucked by suction means attached to a robot arm fork, the film is still difficult to feed and transfer due to the phenomenon of the end of the film waving or warping.

[ Prior art documents ]

[ patent document ]

Patent documents: korean granted patent gazette No. 10-1168491

Patent documents: korean laid-open patent publication No. 10-2006-0059906

Patent documents: korean granted patent gazette No. 10-1924430

Disclosure of Invention

(technical problem to be solved)

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a clamping device capable of preventing both ends from being warped during a transfer operation due to a thin film for a display panel.

(means for solving the problems)

The film clamping device for a display panel according to the present invention for solving the above-described problems includes: first and second clamping parts mounted on one side of the finger part of the transfer robot arm for clamping two end parts of one side of the film for the display panel; and third and fourth clamping portions attached to the other side of the finger portion and clamping both ends of the other side of the display panel film, respectively.

Wherein the first to fourth clamping portions respectively include: a fixed pressing portion where one of both end portions of the film is located; and a movable pressing part which is formed in a movable state corresponding to the fixed pressing part and presses and clamps the other surface of the two end parts of the film.

The first and second clamping portions are respectively mounted at one side front end portion of the finger portion to form a straight line in the length direction, and the third and fourth clamping portions are respectively mounted at the finger portion in a state of being located at the other side surface of the finger portion.

The finger part is a double-finger part positioned at two sides of the outermost side of the plurality of finger parts.

Wherein, preferably, the first to fourth clamping parts respectively include: a cylinder; a piston; a cylinder block connected to the cylinder through the piston; and a movable pressurizing part which is linked with the cylinder block to pressurize and clamp the film.

Wherein, further preferably, the first to fourth clamping portions respectively include: and a moving block rotatably connected to the cylinder block through a connecting rod, wherein the moving pressurizing part is connected to a front end of the moving block.

Wherein, further preferably, the first to fourth clamping portions respectively include: a fastening block mounted on the finger portion; a fixed pressing portion is fixedly formed at one position of the fastening block, and the movable pressing portion contacts (abuts, meets) the upper side of the position where the fixed pressing portion is fixed when the movable pressing portion moves by the air cylinder.

For the first to fourth clamping portions, both side surfaces of the moving block are rotatably connected to one side of an inclined connecting portion, respectively, and the other side of the inclined connecting portion connects both side surfaces of a fixed block formed on the lower side of the moving block in a fixed state, respectively, so that the clockwise or counterclockwise rotation of the moving block is achieved.

(Effect of the invention)

According to an embodiment of the present invention, there is provided a clamping device capable of preventing both ends from warping during a transfer operation due to a thin film for a display panel.

Further, by attaching the clamp device to the arm of the transfer robot used for transferring the film for display panel, the clamp device is not attached to a separate clamp device but is attached to the arm of the transfer robot.

Drawings

Fig. 1 is a structural view of a film clamping device for a display panel and a transfer robot arm according to the present invention.

Fig. 2 is a combined structure view of the clamping device at both ends of one end of the clamping device of the film for the display panel and the arm of the transfer robot.

Fig. 3 is a coupling structure view of the other end of the film clamping device for a display panel according to the present invention and the arm of the transfer robot.

Fig. 4 is a detailed configuration diagram of the clamping device of the film for the display panel of the present invention.

Fig. 5 is an operation state diagram of the clamping device of the film for the display panel of the present invention.

Reference numerals

10: arm part 20: film(s)

30a, 30b, 30c, 30 d: clamping part

111: the finger joint block 112: finger part

113: lateral support wing 114: vacuum adsorption part

211: fastening holes 311a, 311 b: fastening plate

312: fastening screw tap 313: cylinder

314: the cylinder block 315: connecting rod

316: the inclined connecting portion 317: piston

318: moving block 319: movable pressurization part

320: fixing block 321: fixed pressure-applying part

Detailed Description

The structure and the effect of the film clamping device for a display panel according to the present invention will be described with reference to the accompanying drawings.

Advantages and features of the present invention and methods for achieving them will become apparent with reference to the drawings and detailed description of embodiments. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms which only enable the present disclosure to be complete and enable one of ordinary skill in the art to fully understand the scope of the present invention, which is defined only by the claims.

The terminology used in the description herein is for the purpose of describing embodiments only and is not intended to be limiting of the invention. In this specification, the singular form also includes the plural form. Unless specifically stated otherwise, the terms "comprises" and/or "comprising" mean that the referenced components, steps, operations, and/or elements do not preclude the presence or addition of one or more other components, steps, operations, and/or elements.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a meaning that can be commonly understood by one of ordinary skill in the art to which the present invention belongs. Also, unless explicitly defined, terms defined in commonly used dictionaries are not to be interpreted as ideally or excessively.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, the same reference numerals are used for the same components, and repeated description of the same components is omitted.

Fig. 1 is a structural view of a film clamping device for a display panel and a transfer robot arm according to the present invention.

As shown in fig. 1, the clamping device for a film for a display panel and the transfer robot arm of the present invention include an arm part 10 attached to a transfer robot (not shown) and first to fourth clamping parts 30a to 30 d.

The arm 10 attached to the transfer robot is composed of a finger joint block 111 connected to a joint of the transfer robot and receiving a mechanical operation and a control signal in a linked manner, and two or more finger parts 112 horizontally attached to the tip end of the finger joint block 111.

Since a thin film to be transferred has a small thickness and is warped such as sagging and buckling, it is necessary to flatten and maintain tension by various members.

Therefore, in order to prevent the sagging or warping of the film 20, a plurality of lateral support wings 113 are disposed on each of the plurality of finger parts 112, and are disposed at equal intervals on the upper end surfaces of the finger parts 112 so as to be perpendicular to the finger parts 112.

And, a vacuum suction part 114 is formed at a space between the lateral support wing part 113 and the lateral support wing part 113, so that the vacuum suction part 114 is connected to an external vacuum device through an inner space of the finger part 112 by vacuum sucking the film 20.

First and second pinching parts 30a, 30b for pinching one end of the film 20 are attached to the tips of the finger parts 112a, 112b located on the outermost sides, and third and fourth pinching parts 30c, 30d for pinching the other end of the film 20 are attached to one side surfaces of the finger parts 112a, 112b located on the outermost sides.

The lateral support wing portions 113 attached to the finger portions 112 prevent the position of the film 20 from sagging when the film 20 is transferred, and the vacuum suction portions 114 formed on the finger portions 112 clamp both ends of the film 20 at the time of transferring to prevent both ends of the film 20 from warping when the film 20 is sucked and fixed by the film 20.

Generally, since the film used for a large display panel device has a very thin thickness of 0.1mm to 0.3mm and a large area, both ends of the film 20 are warped during the transfer operation, which may cause problems in the transfer and loading.

Such a problem can also be solved by the first to fourth clamping portions 30a to 30d of the present invention.

FIG. 2 is a view showing a structure of a combination of a transfer robot arm and a clamp device on both sides of one end of a clamp device for a film for a display panel according to the present invention, FIG. 3 is a view showing a structure of a combination of a transfer robot arm and a clamp device on both sides of the other end of a clamp device for a film for a display panel according to the present invention,

the clamping device of the present invention is composed of four clamping parts 30a to 30d, and clamps 4 edges of the two ends of the quadrangular film 20 to prevent the two ends of the film 20 from warping during the transfer operation.

The 4 gripping portions 30a to 30d are not separately provided, but are attached to the arm portion 10, to be precise, the finger portion 112 of the transfer robot used in the conventional transfer operation.

First and second gripping portions 30a, 30b for gripping both sides of one end of the film 20 are attached to the distal ends of the finger portions 112 as shown in fig. 2, and third and fourth gripping portions 30c, 30d for gripping both sides of the other end of the film 20 are attached to the sides of the finger portions 112 as shown in fig. 3.

Referring to fig. 2, the first and second clamping parts 30a and 30b are mounted through fastening grooves 211 formed at the distal ends of the finger parts 112a and 112b, respectively, and fastening taps 312 of fastening blocks 311a of the first and second clamping parts 30a and 30b, respectively, wherein the finger parts 112a and 112b to which the first and second clamping parts 30a and 30b are mounted correspond to finger parts located at both outermost sides.

Referring to fig. 3, the third and fourth clamping portions 30c and 30d may be configured to be mounted in the side end directions of the finger portions 112a and 112b, respectively, and may be mounted by fastening grooves 211 formed in the upper surfaces of the finger portions 112a and 112b and fastening taps 312 of fastening blocks 311b of the third and fourth clamping portions 30c and 30d, respectively.

The finger parts 112a and 112b to which the third and fourth pinching parts 30c and 30d are attached correspond to the finger parts located on both outermost sides.

The condition of mounting the first to fourth pinching members 30a to 30d on the finger portions 112a, 112b located on both sides of the outermost side is to pinch the edges of both ends maximally in consideration of the width of the film 20.

Also, the third and fourth clamping parts 30c and 30d are located at the side other than the ends of the finger parts unlike the first and second clamping parts 30a and 30b because one ends of the finger parts 112a and 112b are not connected to anything but the other ends are mounted at the side by the finger joint block 111.

Fig. 4 is a detailed configuration diagram of the clamping device of the film for the display panel of the present invention.

The clamping device shown in fig. 4 is described based on the first and second clamping portions 30a, 30b, since the third and fourth clamping portions 30c, 30d are the same as the first and second clamping portions 30a, 30b, and the fastening blocks 311a, 311b are different in shape.

The first and second clamping portions 30a and 30b include a fastening block 311a, a fastening tap 312, a cylinder 313, a cylinder block 314, a connecting rod 315, an inclined connecting portion 316, a piston 317, a moving block 318, a moving pressing portion 319, a fixing block 320, and a fixing pressing portion 321, respectively.

The fastening block 311a is a member that is inserted into or overlapped with the finger part 112, and is attached to the finger part 112 through the fastening hole 211 of the finger part 112 and the fastening tap 312.

Since the first and second clamping portions 30a, 30b are attached to the ends of the finger portions 112a, 112b, respectively, the finger portions are aligned in the longitudinal direction, and the fastening piece 311a is a linear plate.

Since the third and fourth clamping portions 30c and 30d are respectively mounted on the side ends of the finger portions 112a and 112b and are located on the side surfaces of the finger portions, the clamping block 311b (see fig. 3) is bent in a reversed-l shape.

The piston 317 is linearly reciprocated by the cylinder 313, and the cylinder block 314 connected to the piston 317 is also linearly reciprocated in conjunction therewith. The cylinder 313 is installed under the fastening block 311 a.

The upper end of the center of the cylinder block 314 and the rear end of the center of the moving block 318 are connected to each other by a connecting rod 315, and the cylinder block 314 and the moving block 318 are connected to each other in a rotatable state by the connecting rod 315.

The fixed block 320 is located at a lower side of the moving block 318, left and right sides of the moving block 318 and left and right sides of the fixed block 320 are connected to each other by the inclined connection portion 316, and the fixed block 320 is connected to one position of the rear end of the fastening block 311 a.

Preferably, the inclined connection portion 316 is configured to be double right and left or double right.

The inclined connecting portion 316 is rotatably connected to the moving block 318 and fixedly connected to the fixed block 320, and the moving block 318 is rotated left and right with reference to the fixed block 320 to move up and down and left and right through the inclined connecting portion 316.

The inclined connection portion 316 is inclined in the left-right position, and in the vertical linear state, the moving block 318 reaches the highest point position with reference to the fixed block 320, and moves from the highest point to a lower position when rotating left and right.

The other end of the moving block 318 is connected to a moving pressurizing unit 319, and the moving pressurizing unit 319 acts to pressurize and hold the end of the thin film 20 in conjunction with the rotational movement of the moving block 318.

A fixed pressing portion 321 is formed at a position above the fastening block 311 and the end of the film 20 is positioned between the moving pressing portion 319 and the fixed pressing portion 321, that is, when the end of the film 20 is positioned between the fixed pressing portions 321, the moving pressing portion 319 presses by rotation to be positioned above the end of the film 20, thereby clamping the film 20.

The moving pressing portion 319 and the fixing pressing portion 321 are respectively located below and above the thin film 20, and clamp the thin film 20 by pressing each other, and thus should be a material having a high friction force, and for example, may be made of rubber, a silicone material, or a flexible plastic material.

Fig. 5 is an operation state diagram of the clamping device of the film for the display panel of the present invention.

A shows a state before the film 20 is clamped, and B shows a state after the film 20 is clamped.

First, referring to a, the finger portion 112 of the arm portion 10 is located at the position of the film 20, the cylinder block 314 is located at the rearmost end by the cylinder 313, and the moving block 318 is located at the right portion by the inclined connection portion 316 in the counterclockwise direction by drawing the radius of rotation.

Thereafter, referring to B, in order to clamp the film 20, the cylinder 313, the piston 317, and the cylinder block 314 start to operate, the moving block 318 and the moving pressing portion 319 move to the left side by drawing a rotation radius in the clockwise direction through the connecting rod 315 and the inclined connecting portion 316, and the end of the film 20 is accurately clamped between the moving pressing portion 319 and the fixed pressing portion 321.

As described above, the clamping device of the present invention can prevent the end warping phenomenon caused by a large area and a small thickness in the transfer operation of the film for large display panels.

The clamping device of the present invention is a member for clamping four corner portions at both ends of a film 20, and is respectively attached to a finger portion of a hand portion of a transfer robot, and one pair of clamping portions is connected to the ends of the finger portion and the other pair of clamping portions is connected to the finger portion in a state of being located at a side surface of the finger portion, so that it is possible to directly use an existing transfer robot arm without additionally providing a separate clamping device.

Further, the clamping device of the present invention is not in the form of a clamp, but can clamp the film by pressing the film surface in situ by the movable pressing portion and the fixed pressing portion, and therefore, does not require a high-precision design and is easy to manufacture.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, it can be understood by those skilled in the art that the present invention can be embodied in other specific forms without changing the technical idea or essential features of the invention. The embodiments described above are therefore to be understood as illustrative in all respects and not restrictive.