CN220097942U - Material taking device and Mylar laminating jig - Google Patents

Abstract

The utility model discloses a material taking device and a Mylar attaching jig. This extracting device includes: a support structure; the adsorption structure is connected with the support structure; and a stretching structure connected with the supporting structure and the adsorption structure, wherein the material taking device is used for adsorbing and carrying sheet materials, and the adsorption structure comprises: the sliding rail comprises a first sliding rail and a second sliding rail which are arranged in parallel along a first direction; the sliding platform is connected with the first sliding rail and the second sliding rail and comprises a first sliding platform and a second sliding platform, and the first sliding platform and the second sliding platform are controlled by the stretching structure to slide back on the sliding rail along the first direction; and a plurality of suction nozzles arranged on the sliding platform. The stretching structure drives the first sliding platform and the second sliding platform to reversely slide along the first direction, so that the sheet material adsorbed by the adsorption structure is stretched in the first direction, and the problem of wrinkling caused by the sheet material in the adsorption process is solved.

Description

Material taking device and Mylar laminating jig

Technical Field

The utility model relates to the technical field of display, in particular to a material taking device and a Mylar laminating jig.

Background

With the rapid development of light, thin and miniaturized electronic products, various portable electronic products mostly use a liquid crystal display panel as a display panel, and particularly, the liquid crystal display panel is an important component in products such as video cameras, notebook computers, desktop computers, smart televisions, mobile terminals or personal digital processors. Since the liquid crystal itself does not emit light, a light source is required to be provided by a light emitting tube behind the liquid crystal display panel, but a frame region of the display screen is not required. If the shielding is not good, light leakage can occur, and contrast and brightness of the liquid crystal display screen can be affected. In order to prevent the occurrence of the light leakage phenomenon, a light-shielding mylar tape is generally used to fix the liquid crystal display and shield the frame area of the liquid crystal display.

At present, the bonding operation of Mylar tends to be automatic gradually, and single-piece material taking is needed in the operation process, however, the pressing and adsorbing actions usually exist in the material taking process in the prior art, so that material deformation and wrinkling often occur in the adsorbing process, and the attaching process directly acts on a product, so that poor attachment (such as wrinkling and tilting) can be further caused, and the yield of the product is reduced.

Disclosure of Invention

In view of the above problems, an object of the present utility model is to provide a material taking device and a mylar attaching jig, which are used for stretching a sheet material after the sheet material is adsorbed, so as to avoid a reduction in product yield caused by wrinkling of the sheet material.

According to an aspect of the present utility model, there is provided a material taking apparatus, comprising: a support structure; the adsorption structure is connected with the support structure; and a stretching structure connected with the supporting structure and the adsorption structure, wherein the material taking device is used for adsorbing and carrying sheet materials, and the adsorption structure comprises: the sliding rail comprises a first sliding rail and a second sliding rail which are arranged in parallel along a first direction; the sliding platform is connected with the first sliding rail and the second sliding rail and comprises a first sliding platform and a second sliding platform, and the first sliding platform and the second sliding platform are controlled by the stretching structure to reversely slide along the first direction; and a plurality of suction nozzles arranged on the sliding platform.

Optionally, a plurality of the suction nozzles are movably arranged on the sliding platform in a magnetic attraction manner.

Optionally, the sliding platform further comprises a third sliding platform arranged between the first sliding platform and the second sliding platform.

Optionally, the support structure comprises: the support frame is connected with the adsorption structure; and the support rods comprise a first support rod and a second support rod, and the first support rod and the second support rod are arranged at two ends of the support frame along the first direction and are respectively connected with the stretching structure.

Optionally, the adsorption structure further comprises: the reference beam comprises a first reference beam and a second reference beam, the first reference beam and the second reference beam are respectively connected with the supporting frame, the first reference beam and the second reference beam are parallel to the first direction, the first sliding rail is arranged on the first reference beam, and the second sliding rail is arranged on the second reference beam.

Optionally, the stretching structure comprises: the cylinder comprises a cylinder barrel and a piston; the first stretching unit is connected with the piston, the first supporting rod and the first sliding platform; and the second stretching unit is connected with the piston, the second supporting rod and the second sliding platform, wherein the first stretching unit and the second stretching unit are symmetrically arranged relative to the air cylinder.

Optionally, the first stretching unit includes: the device comprises a first connecting arm, a first transmission part and a second connecting arm, wherein one end of the first connecting arm is connected with the piston, and the other end of the first connecting arm is connected with the first transmission part; one end of the second connecting arm is connected with the first transmission part, and the other end of the second connecting arm is connected with the first sliding platform; the second stretching unit includes: the device comprises a piston, a first connecting arm, a second transmission part and a fourth connecting arm, wherein one end of the first connecting arm is connected with the piston, and the other end of the first connecting arm is connected with the first transmission part; one end of the fourth connecting arm is connected with the second transmission part, and the other end of the fourth connecting arm is connected with the second sliding platform.

Optionally, the first transmission part comprises a first gear and a second gear which are meshed with each other; the second transmission part comprises a third gear and a fourth gear which are meshed with each other.

Optionally, the material taking device further comprises a leveling structure connected between the adsorption structure and the supporting structure.

According to still another aspect of the present utility model, there is provided a mylar fitting jig, which includes the material taking device as set forth in any one of the above.

According to the material taking device, after the sheet material such as Mylar is absorbed, the absorption structure is driven by the stretching structure to stretch the sheet material, so that the wrinkling of the sheet material caused in the absorption process is improved, and the production abnormality is reduced; further, as the material taking device adopts the design that the sliding rail is matched with the magnetic attraction, the adjusting step of the material taking device when absorbing sheet materials with different sizes is simplified, the universality of the material taking device is improved, and the production efficiency is improved. Further, by grouping the suction nozzles, vacuum waste or vacuum leakage can be avoided.

Drawings

The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings, in which:

FIG. 1 shows a schematic block diagram of a reclaimer device of the present utility model;

FIG. 2 shows a schematic block diagram of the support structure shown in FIG. 1;

FIG. 3 shows a schematic structural view of the adsorption structure shown in FIG. 1;

FIG. 4 shows a schematic block diagram of the stretch structure shown in FIG. 1;

FIG. 5 shows a schematic block diagram of the first transmission shown in FIG. 4;

FIG. 6a shows a state of a pre-stretching structure of the take-off device of the present utility model for adsorbing a sheet material;

fig. 6b shows a state of the stretching structure after the sheet material is sucked by the take-out device of the present utility model.

Detailed Description

Various embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts. For clarity, the various features of the drawings are not drawn to scale.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model.

Also, certain terms are used throughout the description and claims to refer to particular components. It will be appreciated by those of ordinary skill in the art that a hardware manufacturer may refer to the same component by different names. The present patent specification and claims do not take the form of an element or components as a functional element or components as a rule.

Furthermore, it should be noted that relational terms such as first and second are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It will be appreciated that, unless expressly specified and limited otherwise, the terms "mounted," "configured to," "connected," and the like are to be construed broadly and include, for example, "connected" as well as fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The material taking device of the present utility model may be used with a moving unit such as a mechanical arm, an electric push rod, etc. for adsorbing and carrying a sheet material, and in the embodiment of the present utility model, a mylar is used as the sheet material, but it should be understood that the present utility model is not limited thereto, and the sheet material may be a PET film, for example. In addition, in this embodiment, the first direction, the second direction, and the third direction represent three dimensions perpendicular to each other, the third direction represents a direction in which the material taking device moves up and down along with the moving unit, the first direction represents a stretching direction of the mylar, and the second direction represents a direction perpendicular to a plane formed by the first direction and the third direction, where a plane formed by the first direction and the second direction is parallel to an adsorption plane of the mylar.

Fig. 1 shows a schematic block diagram of a reclaimer device of the present utility model. As shown, the reclaimer device 1 of the present utility model comprises a support structure 100, a stretching structure 200, and an adsorption structure 400. The supporting structure 100 is connected with a moving unit such as a mechanical arm, an electric push rod and the like, and plays a role in supporting and fixing the material taking device 1; the adsorption structure 400 is connected with the support structure 100 for contacting and adsorbing the mylar; the stretching structure 200 is connected with the supporting structure 100 and the adsorption structure 400, and controls the adsorption structure 400 to stretch after the mylar adsorption, thereby improving the wrinkling problem caused in the mylar adsorption process.

Specifically, referring to fig. 2, the support structure 100 includes a support bracket 110 for supporting the adsorption structure 400 and a support bar 120 for supporting the tension structure 200. In some embodiments, the support frame 110 is a hollow structure. In this embodiment, the supporting frame 110 is a frame structure, and the shape of the supporting frame 110 is shown in fig. 2, in which the supporting frame 110 is a quadrangular prism in the upper half and a truncated quadrangular pyramid in the lower half. The support frame 110 includes a first frame 111, a second frame 112, a third frame 113, a plurality of first connecting rods 114, and a plurality of second connecting rods 115. Specifically, in the present embodiment, the first frame 111, the second frame 112, and the third frame 113 are all rectangular, and the first frame 111 and the second frame 112 are the same in shape and size and have each side length smaller than each side length of the third frame. The first frame 111, the second frame 112 and the third frame 113 are coaxially and parallelly disposed along the third direction (i.e. the z-axis direction in the drawing), and a plurality of first connecting rods 114 are disposed parallel to the third direction (i.e. the z-axis direction in the drawing) for connecting the first frame 111 and the second frame 112, for example, in the present embodiment, four first connecting rods 114 are included for connecting four vertices of the first frame 111 and the second frame 112 respectively; the plurality of second connecting rods 115 are used for connecting the second frame 112 and the third frame 113, for example, in the present embodiment, four second connecting rods 115 are included for connecting four vertices of the second frame 112 and the third frame 113, respectively. It should be understood that the particular shape of the support bracket 110 of the present utility model is not limited thereto, and may be, for example, generally truncated pyramid-shaped or otherwise.

The support bar 120 is connected to the support frame 110 for supporting the stretching structure 200. The support bar 120 includes a first support bar 121 and a second support bar 122, in this embodiment, the first support bar 121 and the second support bar 122 are disposed at two ends of the support frame 110 along a first direction (i.e. an x-axis direction shown in the figure), and are respectively connected to the stretching structure 200 for supporting the stretching structure 200.

Fig. 3 shows a schematic structural view of the adsorption structure shown in fig. 1. Referring to fig. 3, the suction structure 400 includes a plurality of sliding platforms, a plurality of reference beams, a plurality of sets of sliding rails, and a plurality of suction nozzles. Wherein the plurality of reference beams comprises a first reference beam 411 and a second reference beam 412 parallel to a first direction (i.e., the x-axis direction in the figure). The first reference beam 411 and the second reference beam 412 are respectively connected to the support frame 110 for providing a fixed reference for each sliding platform. The plurality of sets of sliding rails include a first sliding rail 421 and a second sliding rail 422. The first slide rail 421 and the second slide rail 422 are disposed on the first reference beam 411 and the second reference beam 412 parallel to the first direction (i.e., x-axis direction as shown).

The sliding platforms are connected to the first sliding rail 421 and the second sliding rail 422, and can slide along the sliding rails in the first direction. Wherein the plurality of sliding platforms includes a first sliding platform 430 and a second sliding platform 440. In this embodiment, the first sliding platform 430 and the second sliding platform 440 are rectangular, and two ends of the first sliding platform 430 and the second sliding platform 440 along the second direction (i.e. the y-axis direction in the drawing) are respectively connected to the first sliding rail 421 and the second sliding rail 422, so that the first sliding platform 430 and the second sliding platform 440 are controlled by the stretching structure 200 to be capable of sliding along the sliding rails in the first direction (i.e. the x-axis direction in the drawing) in a reverse direction, thereby realizing the stretching of the mylar. Further, in some embodiments, the versatility of the material taking device 1 is enhanced by adjusting the rough positions of the first sliding platform 430 and the second sliding platform 440 on the sliding rails, so that the position and the size of the adsorption structure 400 in the first direction correspond to the mylar.

A plurality of suction nozzles 460 are provided on each sliding platform, and each suction nozzle is connected with a vacuum pipeline (not shown in the figure) for sucking mylar. In some embodiments, the plurality of suction nozzles may be arranged, for example, in a matrix. In some embodiments, the plurality of suction nozzles 460 are movably connected to the sliding platform in a magnetic attraction manner, so that the positions of the plurality of suction nozzles 460 on the respective sliding platforms can be adjusted according to the size of the mylar, so that the positions and the sizes of the suction structures 400 in the second direction correspond to the mylar (in this case, the second direction is perpendicular to the first direction on the sliding platform), thereby increasing the versatility of the material taking device. Further, in some embodiments, the suction nozzles 460 on each sliding platform are designed in groups, for example, referring to fig. 3, on the first sliding platform 430 and the second sliding platform 440, 2 suction nozzles 460 are grouped, and each group of suction nozzles is partially opened or closed according to the size of the mylar, so as to avoid vacuum waste or vacuum leakage.

Fig. 4 shows a schematic structural view of the stretched structure shown in fig. 1. As shown in fig. 1, the stretching structure 200 includes a cylinder 210, a first stretching unit 220, and a second stretching unit 230. Specifically, referring to fig. 4, the cylinder 210 includes a cylinder tube 211 and a piston 212, and by varying the air pressure inside the cylinder 210, the piston 212 can be moved away from the cylinder tube 211 or extend into the cylinder tube 211 in a third direction (i.e., the illustrated z-axis direction). In some embodiments, the cylinder 211 is coupled to the support frame 110, which provides support, and in other embodiments, the cylinder 211 is coupled to a mobile unit, such as a robotic arm, a motorized push rod, or the like, which provides support. The first stretching unit 220 and the second stretching unit 230 are each connected to the piston 212, for example, in this embodiment, to an end remote from the cylinder tube 211, and are symmetrical with respect to the cylinder 210 in a first direction (i.e., x-axis direction in the drawing). Specifically, the first stretching unit 220 includes a first connection arm 221, a first transmission portion 222, and a second connection arm 223. The second stretching unit 230 includes a third connecting arm 231, a second transmission portion 232, and a fourth connecting arm 233. Specifically, referring to fig. 4, one end of the first connecting arm 221 is connected to one end of the piston 212 remote from the cylinder 211, the other end is connected to the first transmission part 222, one end of the second connecting arm 223 is connected to the first transmission part 222, and the other end is connected to the first sliding platform 430; one end of the third connecting arm 231 is connected to one end of the piston 212 away from the cylinder 211, the other end is connected to the second transmission portion 232, one end of the fourth connecting arm 233 is connected to the second transmission portion 232, and the other end is connected to the second sliding platform 440. In some embodiments, as shown in fig. 4, in the third direction (the z-axis direction is illustrated), the first transmission portion 222 and the second transmission portion 232 are the same distance from the adsorption structure 400 and are both h1; the distance h2 from the adsorption structure 400 at the end of the piston 212 away from the cylinder 211; when the material taking device 1 does not absorb the mylar, h1 is greater than h2, so that the first stretching unit 220 and the second stretching unit 230 are in an "M" shape as a whole.

In the present embodiment, the first transmission portion 222 includes a first gear 2221 and a second gear 2222; the second transmission part 232 includes a third gear and a fourth gear. Since the principle of the first transmission part 222 is the same as that of the second transmission part 232, the working principle of the transmission part will be further described by taking the first transmission part 222 as an example. In this embodiment, referring to fig. 5, the first gear 2221 is connected to the first connecting arm 221, so that the first connecting arm 221 can perform a point-around movement around the axis of the first gear 2221; the second gear 2222 is connected to the second connecting arm 223 such that the second connecting arm 223 can perform a point-around movement around the axis of the second gear 2222. The first gear 2221 is meshed with the second gear 2222, and the first gear 2221 and the second gear 2222 are moved in opposite directions through gear transmission, so that the movement of the first connecting arm 221 can drive the movement of the second connecting arm 223. Illustratively, when the first connecting arm 223 rotates the first gear 2221 clockwise, the second gear 2222 engaged with the first gear rotates counterclockwise, so that the second connecting arm 223 is driven to move the first sliding platform 430 in the direction indicated by the arrow. In some embodiments, a first gear 2221 is fixedly connected to the first support bar 121, and a third gear is fixedly connected to the second support bar 122 to provide support to the first stretching unit 220 and the second stretching unit 230; in the present embodiment, the second gear 2222 is fixedly connected to the first support rod 121, and the fourth gear is fixedly connected to the second support rod 122, for example, the axis of the second gear passes through the first support rod 121, and the axis of the fourth gear passes through the second support rod 122, so as to provide support for the first stretching unit 220 and the second stretching unit 230.

It should be understood that the first stretching unit 220 and the second stretching unit 230 are used to move the first sliding platform 430 and the second sliding platform 440 closer to or further away from each other along with the movement of the piston 212, and thus the specific structure of the first transmission portion 222 and the second transmission portion 232 should not be limited to the structure shown in fig. 5, for example, in some other embodiments, belt transmission or other gear structure may be selected for transmission.

Fig. 6a and 6b show the state of the front and rear stretching structures of the suction sheet material of the reclaimer device of the present utility model, respectively. As shown in fig. 6a, before the material taking device 1 is contacted with the mylar, the air pressure of the air cylinder 210 is adjusted, so that the piston 212 moves toward the cylinder 211 in the third direction (i.e., the direction of the illustrated z-axis), thereby driving one ends of the first connecting arm 221 and the third connecting arm 231 connected with the piston 212 to move toward the cylinder 211 in the third direction (i.e., the direction of the illustrated arrow), and driving the second connecting arm 223 and the fourth connecting arm 233 through the first transmission part 222 and the second transmission part 232, thereby driving the first sliding platform 430 and the second sliding platform 440 to move in opposite directions (i.e., the direction of the illustrated x-axis) to approach each other. After the material taking device 1 adsorbs the mylar, it is lifted up by a moving unit such as a mechanical arm and an electric push rod, as shown in fig. 6b, in this process, the air pressure inside the air cylinder 210 is changed, so that the piston 212 moves away from the cylinder 211 in a third direction (i.e. in the direction of the illustrated z-axis) (i.e. in the direction of the illustrated arrow), and the first transmission part 222 and the second transmission part 232 drive the second connecting arm 223 and the fourth connecting arm 232, so that the first sliding platform 430 and the second sliding platform 440 move in opposite directions in the first direction (i.e. in the direction of the illustrated x-axis), and are separated from each other. By stretching the mylar after adsorption, the stretch correction after mylar crimping is achieved.

Further, in some embodiments, the material taking device 1 can be controlled by a PLC system. For example, when the material taking device 1 is in contact with the mylar, the mylar is first adsorbed by the two ends of the first sliding platform 430 and the second sliding platform 440 that are away from each other, and the rest is temporarily not adsorbed, so that the mylar is stretched after the material taking device 1 is lifted. In some embodiments, the amount of air pressure or/and limit adjustments to the piston 212 are controlled by the PLC to avoid under-or over-stretching of the mylar.

Further, in some embodiments, as shown in fig. 3, the plurality of sliding platforms further includes at least one third sliding platform 450, and the at least one third sliding platform 450 is disposed between the first sliding platform 430 and the second sliding platform 440, and the position of the third sliding platform 450 on the sliding rails 421 and 422 is adjusted according to the mylar size, and more suction nozzles 460 are provided through the third sliding platform, so that the suction of the mylar, particularly the large-sized mylar, is more firm. In some embodiments, each sliding platform is configured such that when the mylar is absorbed, the mylar is absorbed by the first sliding platform 430 and the second sliding platform 440, and then absorbed by the third sliding platform 450 after the stretching, thereby further improving the stretching effect.

Further, in some embodiments, as shown in fig. 1, the material taking device 1 further includes a leveling structure 300, where the leveling structure 300 is connected between the adsorption structure 400 and the support structure 100, and the leveling structure 300 is used to implement the local plane leveling of the adsorption structure 400, so as to avoid the unstable adsorption caused by the inclination of the adsorption structure 400. In some embodiments, the leveling structure 300 is designed, for example, with a screw mechanism in combination with a micrometer.

According to the material taking device, after the sheet material such as Mylar is absorbed, the absorption structure is driven by the stretching structure to stretch the sheet material, so that the wrinkling of the sheet material caused in the absorption process is improved, and the production abnormality is reduced; further, as the material taking device adopts the design that the sliding rail is matched with the magnetic attraction, the adjusting step of the material taking device when absorbing sheet materials with different sizes is simplified, the universality of the material taking device is improved, and the production efficiency is improved. Further, by grouping the suction nozzles, vacuum waste or vacuum leakage can be avoided.

The embodiment of the utility model also provides a Mylar laminating jig which comprises the material taking device, the stripping device, the placing platform and the like. Because the mylar laminating jig provided by the utility model comprises the material taking device provided by the embodiment, the mylar laminating jig also has the beneficial effects described in any embodiment and is not repeated.

Embodiments in accordance with the present utility model, as described above, are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. A take-out device, comprising:

a support structure;

the adsorption structure is connected with the support structure; and

a stretching structure connected with the supporting structure and the adsorption structure,

wherein the material taking device is used for absorbing and carrying sheet materials,

the adsorption structure comprises:

the sliding rail comprises a first sliding rail and a second sliding rail which are arranged in parallel along a first direction;

the sliding platform is connected with the first sliding rail and the second sliding rail and comprises a first sliding platform and a second sliding platform, and the first sliding platform and the second sliding platform are controlled by the stretching structure to reversely slide on the sliding rail along the first direction; and

a plurality of suction nozzles arranged on the sliding platform.

2. The take-out apparatus of claim 1, wherein a plurality of said suction nozzles are movably disposed on said slide platform in a magnetically attractive manner.

3. The take-off device of claim 1, wherein the slide platform further comprises a third slide platform disposed between the first slide platform and the second slide platform.

4. The take-off device of claim 1, wherein the support structure comprises:

the support frame is connected with the adsorption structure; and

the support rods comprise a first support rod and a second support rod, and the first support rod and the second support rod are arranged at two ends of the support frame along the first direction and are respectively connected with the stretching structure.

5. The take-off device of claim 4, wherein the adsorption structure further comprises:

the reference beam comprises a first reference beam and a second reference beam, the first reference beam and the second reference beam are respectively connected with the supporting frame, the first reference beam and the second reference beam are parallel to the first direction,

the first sliding rail is arranged on the first reference beam, and the second sliding rail is arranged on the second reference beam.

6. The take-off device of claim 4, wherein the stretching structure comprises:

the cylinder comprises a cylinder barrel and a piston;

the first stretching unit is connected with the piston, the first supporting rod and the first sliding platform; and

a second stretching unit connected with the piston, the second supporting rod and the second sliding platform,

the first stretching unit and the second stretching unit are symmetrically arranged relative to the air cylinder.

7. The take-off device of claim 6, wherein,

the first stretching unit includes: the device comprises a first connecting arm, a first transmission part and a second connecting arm, wherein one end of the first connecting arm is connected with the piston, and the other end of the first connecting arm is connected with the first transmission part; one end of the second connecting arm is connected with the first transmission part, and the other end of the second connecting arm is connected with the first sliding platform;

the second stretching unit includes: the device comprises a piston, a first connecting arm, a second transmission part and a fourth connecting arm, wherein one end of the first connecting arm is connected with the piston, and the other end of the first connecting arm is connected with the first transmission part; one end of the fourth connecting arm is connected with the second transmission part, and the other end of the fourth connecting arm is connected with the second sliding platform.

8. The take-off device of claim 7, wherein the first drive includes first and second intermeshing gears; the second transmission part comprises a third gear and a fourth gear which are meshed with each other.

9. The take-off device of claim 1, further comprising a leveling structure connected between the suction structure and the support structure.

10. A mylar fitting jig comprising a take out device as claimed in any one of claims 1 to 9.