CN217729951U

CN217729951U - Film tearing device

Info

Publication number: CN217729951U
Application number: CN202220636943.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Optical Guide Precision Technology Co ltd
Current assignee: Wuxi Optical Guide Precision Technology Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-11-04
Anticipated expiration: 2032-03-21

Abstract

The utility model relates to a film tearing device, including pressing from both sides the mechanism and film tearing mechanism. The clamping mechanism is provided with a clamping part which can be opened or closed, and the film tearing mechanism comprises a driving assembly and a film tearing knife. When tearing the waste material film on product surface, drive assembly drives earlier and tears the membrane sword and remove along the direction of perpendicular to product surface, and it does not harm the product not insert the waste material film until tearing the membrane sword. Then, the driving component drives the film tearing knife to move along the extending direction of the waste film, so that the waste film is forced to be separated from the surface of the product and forms an arch structure. The arch structure protrudes out of the surface of the product, so that the product can be smoothly clamped by the clamping part of the clamping mechanism. Finally, the clamping mechanism clamping the arch structure moves along the extending direction of the waste film, so that the waste film can be torn off from the surface of the product. The clamping mechanism moves to the upper part of the waste material box, and the clamping part is opened, so that the waste material film can be thrown into the waste material box.

Description

Film tearing device

Technical Field

The utility model relates to a technical field is got rid of to the waste film, in particular to dyestripping device.

Background

During the processing of the product, the removal of the film of waste material is often involved. For example, in the OLED manufacturing process, the waste thin film is separated from the product body by half-cutting; and then, clamping and tearing off the waste thin film by adopting a clamping structure, and finally finishing film polishing. Because the single side of most films is provided with the back adhesive, the back adhesive can be tightly adhered to the body of a product. Especially, after half cutting, the waste film is completely flush with the surface of the product, so that the waste film cannot be smoothly clamped by the conventional film tearing device.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a film tearing device capable of smoothly gripping the waste film.

A film tearing apparatus for tearing off a waste film adhered to a surface of a product, said film tearing apparatus comprising:

a gripping mechanism having a gripping section that can be opened or closed; and

the film tearing mechanism comprises a driving component and a film tearing knife, the driving component can drive the film tearing knife to move in the direction perpendicular to the surface of the product until the film tearing knife is inserted into the waste film, and the film tearing knife can be driven to move in the extending direction of the waste film, so that the waste film forms an arched structure;

wherein the arching structure can be clamped by the clamping part, and the clamping mechanism can move along the extending direction of the waste film so as to tear the waste film from the surface of the product.

In one embodiment, the clamping mechanism comprises a clamping cylinder and two clamping jaws, the clamping portion is formed between the two clamping jaws, and the clamping cylinder can drive the two clamping jaws to move close to or away from each other so as to switch the clamping portion between an open state and a closed state.

In one embodiment, the clamping mechanism further comprises a speed regulating valve, and the speed regulating valve is arranged on the clamping cylinder and can regulate the air inlet and outlet speeds of the clamping cylinder.

In one embodiment, the inner wall of the clamping portion is formed with an anti-adhesive coating.

In one embodiment, the release coating is a teflon coating.

In one embodiment, the inner wall of the clamping part is further provided with an air outlet, and air can be blown towards the middle of the clamping part through the air outlet.

In one embodiment, the device further comprises a detection mechanism, wherein the detection mechanism can detect whether the waste film exists in the clamping part or not.

In one embodiment, the detection mechanism includes a first electrode and a second electrode disposed on an inner wall of the clamping portion, and when the clamping portion is in a closed state, the first electrode is in contact with and conducted with the second electrode, and when the clamping portion is in an open state, the first electrode is away from the second electrode.

In one embodiment, when the clamping part is in a closed state, the first electrode and the second electrode are in elastic abutment.

In one embodiment, the detection mechanism further includes a sliding sleeve and a spring, the sliding sleeve is fixed on the inner wall of the clamping portion, the first electrode is slidably disposed in the sliding sleeve, and two ends of the spring respectively abut against the first electrode and the sliding sleeve.

Above-mentioned dyestripping device, when tearing the waste material film on product surface, drive assembly drives earlier and tears the membrane sword and remove along the direction on perpendicular to product surface, and it does not harm the product until tearing the membrane sword and inserting the waste material film. Then, the driving component drives the film tearing knife to move along the extending direction of the waste film, so that the waste film is forced to be separated from the surface of the product and forms an arch structure. The arch structure protrudes out of the surface of the product, so that the product can be smoothly clamped by the clamping part of the clamping mechanism. Finally, the clamping mechanism clamping the arch structure moves along the extending direction of the waste film, so that the waste film can be torn off from the surface of the product. The clamping mechanism moves to the upper part of the waste material box, and the clamping part is opened, so that the waste material film can be thrown into the waste material box.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a film tearing apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a right side view of the film tearing apparatus of FIG. 1;

FIG. 3 is a schematic view of a jaw of the film tearing apparatus of FIG. 1;

FIG. 4 is a schematic view of a detection mechanism in the film tearing apparatus of FIG. 1;

FIG. 5 is a schematic illustration of a product to be peeled in one embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, a film tearing apparatus 100 according to a preferred embodiment of the present invention includes a clamping mechanism 110 and a film tearing mechanism 120.

The film tearing apparatus 100 is used for performing a film tearing operation on the product 200 shown in fig. 5 to tear off the waste film 210 attached to the surface of the product 200. Specifically, the scrap film 210 is generally in the form of a strip. For the product 200 with the film coated on the surface, sometimes the film in a specific area needs to be removed, and the part of the film needing to be removed is the waste film 210. A laser may be used to half-cut along a predetermined trajectory to separate the film to be removed from other areas of the film to provide scrap film 210.

The gripping mechanism 110 has a gripping section that can be opened or closed. When the clamping part is closed, the waste film 210 in the clamping part can be clamped; when the gripper is opened, the gripped scrap film 210 can be released. The gripping mechanism 110 in this embodiment is specifically an air gripper. The clamping mechanism 110 includes a clamping cylinder 111 and two clamping jaws 112, the clamping portion is formed between the two clamping jaws 112, and the clamping cylinder 111 can drive the two clamping jaws 112 to move closer to or away from each other, so that the clamping portion is switched between an open state and a closed state. The switching of the clamping portion between the open state and the closed state can be achieved by controlling the air intake and air exhaust of the clamping cylinder 111.

Further, in this embodiment, the gripping mechanism 110 further includes a speed regulating valve 113, and the speed regulating valve 113 is disposed on the clamping cylinder 111 and is capable of adjusting the air inlet and outlet speeds of the clamping cylinder 111. The speed of air inlet and outlet of the clamping cylinder 111 is adjusted through the speed adjusting valve 113, the speed of the two clamping jaws 112 approaching or separating from each other can be changed, and therefore the opening or closing speed of the clamping part can be adjusted according to requirements.

The film tearing mechanism 120 includes a driving assembly 121 and a film tearing blade 122. The driving assembly 121 may employ an air cylinder, an electric cylinder, a motor screw pair, or a combination thereof. The driving assembly 121 can drive the tearing knife 122 to move in a direction perpendicular to the surface of the product 200 until the tearing knife 122 inserts into the waste film 210.

Before the product 200 is subjected to the film tearing process, the product 200 is placed below the film tearing mechanism 120 and the side provided with the film waste 210 faces the film tearing knife 122. The tearing knife 122 moves downward by the driving unit 121 and pierces the waste film 210. The driving assembly 121 needs to have high driving precision to ensure that the tearing knife 122 can insert the waste film 210 without damaging the body of the product 200 below the waste film 210.

Further, the driving unit 121 can drive the tearing knife 122 to move along the extending direction of the waste film 210, so as to form a arching structure (not shown) on the waste film 210. After the tearing knife 122 is inserted into the waste film 210, moving along the extending direction of the waste film 210, i.e. the left-right direction shown in fig. 2, forces the waste film 210 in front of the moving direction to separate from the body of the product 200, and pushes the waste film 210 to perform a zigzag motion, thereby forming an arch structure protruding out of the surface of the product 200.

The relative positions of the gripping mechanism 110 and the film tearing mechanism 120 can be set so that the formed arched structure is just positioned in the gripping part of the gripping mechanism 110. Thus, the clamping portion is directly closed to clamp the waste film 210. Obviously, the clamping mechanism 110 can also move to the vicinity of the arching structure under the driving of the servo mechanism, so that the clamping part can smoothly clamp the scrap film 210.

Since the arching structure protrudes from the surface of the product 200, the gripping portion of the gripper mechanism 110 can be easily gripped. After the arching structure is gripped by the gripping portion, the gripping mechanism 110 can move along the extending direction of the waste film 210 to tear the waste film 210 off the surface of the product 200. Specifically, film tearing apparatus 100 generally further comprises a moving mechanism (not shown) capable of moving gripping mechanism 110 integrally.

After the waste film 210 is completely torn off from the surface of the product 200, the clamping mechanism 110 can move the clamped waste film 210 to a position above a waste box (not shown), and then the clamping portion is opened, so that the waste film 200 can be thrown into the waste box to complete film throwing.

Since one side of the waste film 200 is provided with the back adhesive, the clamping portion may be stuck to the waste film 200 when clamping it. In order to prevent the scrap film 200 from adhering to the gripper 110, the film-throwing success rate is reduced. In this embodiment, an anti-sticking coating (not shown) is formed on the inner wall of the nip portion. The anti-sticking coating is arranged, so that the waste material film 200 and the clamping mechanism 110 can be effectively prevented from being adhered, and the success rate of film polishing is improved. Specifically, the anti-sticking coating can be a teflon coating, and can also be a coating made of anti-sticking materials such as polyvinylidene fluoride. In this embodiment, the release coating is attached to the inside of the two jaws 112.

Referring to fig. 3, in the present embodiment, the inner wall of the clamping portion is further provided with an air outlet 114, and air can be blown toward the middle of the clamping portion through the air outlet 114. Specifically, the air outlet holes 114 in this embodiment are opened at one side of the two clamping jaws 112 facing the clamping portion. Furthermore, each jaw 112 is typically provided with an air connector (not shown) to supply air to the air outlet 114. When the film polishing operation is performed, the clamping portion is opened, and the air outlet holes 114 blow air towards the middle of the clamping portion, so that the waste material film 210 can be quickly separated from the inner wall of the clamping portion, and the film polishing success rate is further improved.

Referring to fig. 4, in the embodiment, the film tearing apparatus 100 further includes a detection mechanism 130, and the detection mechanism 130 can detect whether the waste film 210 exists in the clamping portion.

Before tearing off the waste film 210, if the detection mechanism 130 detects that the waste film 210 exists in the clamping part, it indicates that the clamping mechanism 110 has successfully achieved clamping, and the subsequent operations can be normally performed; otherwise, the clamping mechanism 110 is required to clamp the scrap film 210 again. After the film polishing operation is completed, if the detection mechanism 130 detects that the waste film 210 does not exist in the clamping part, the film polishing is successfully completed; otherwise, the film polishing fails, and residual films exist in the clamping part.

Further, in the present embodiment, the detecting mechanism 130 includes a first electrode 131 and a second electrode 132 disposed on an inner wall of the clamping portion, and when the clamping portion is in the closed state, the first electrode 131 is in contact with and conducted with the second electrode 132, and when the clamping portion is in the open state, the first electrode 131 is far away from the second electrode 132. Specifically, the first electrode 131 and the second electrode 132 can be respectively mounted on the two clamping jaws 112. As shown in fig. 3, a mounting hole 1121 is opened on a surface of each clamping jaw 112 facing the clamping portion for mounting the first electrode 131 and the second electrode 132, respectively.

In actual operation of the film tearing apparatus 100, the first electrode 131 and the second electrode 132 generally need to be electrically connected to a control device (not shown) capable of detecting whether the two are conducted or not. The scrap film 210 is generally an insulating material and is not electrically conductive. After the clamping mechanism 110 smoothly clamps the waste film 210, the first electrode 131 and the second electrode 132 are separated by the waste film 210, and thus are insulated from each other. Therefore, when the clamping mechanism 110 needs to clamp the waste film 210, only the insulation between the first electrode 131 and the second electrode 132 is displayed to indicate that the film clamping is successful.

After the film polishing operation is completed, the clamping portion performs re-clamping (i.e. the clamping portion is switched to the closed state again), if it is detected that the first electrode 131 and the second electrode 132 are conducted, it indicates that the scrap film 210 does not exist in the clamping portion, and the clamping mechanism 110 successfully polishes the film; if the first electrode 131 and the second electrode 132 are still insulated, the film polishing fails, and a residual film exists in the clamping portion.

Compared with the conventional photoelectric detection method, the method for determining whether the film is successfully sandwiched and polished according to the conduction state of the first electrode 131 and the second electrode 132 can improve the detection accuracy.

Specifically, in the present embodiment, when the clamping portion is in the closed state, the first electrode 131 and the second electrode 132 elastically abut. Thus, when the clamping portion is switched to the closed state, a flexible collision rather than a rigid collision will occur between the first electrode 131 and the second electrode 132, and the first electrode 131 and the second electrode 132 can be effectively prevented from being damaged due to the collision, so that the service life of the detection mechanism 130 is prolonged.

Further, in this embodiment, the detecting mechanism 130 further includes a sliding sleeve 133 and a spring 134, the sliding sleeve 133 is fixed on the inner wall of the clamping portion, the first electrode 131 is slidably disposed in the sliding sleeve 133, and two ends of the spring 134 respectively abut against the first electrode 131 and the sliding sleeve 133. When the first electrode 131 abuts against the second electrode 132, the first motor 131 retracts and compresses the spring 134, and the elastic force generated by the spring 134 causes the first electrode 131 to elastically abut against the second electrode 132.

In the film tearing apparatus 100, when the waste film 210 on the surface of the product 200 is torn off, the driving component 121 first drives the film tearing knife 122 to move in a direction perpendicular to the surface of the product 200 until the film tearing knife 122 inserts into the waste film 210 and does not damage the product 200. Then, the driving unit 121 drives the tearing blade 122 to move along the extending direction of the waste film 210, so as to force the waste film 210 to separate from the surface of the product 200 and form a vaulted structure. The arch structure protrudes from the surface of the product 200 so that it can be smoothly gripped by the grip portion of the gripper mechanism 110. Finally, the gripper 110 gripping the arch structure moves along the extension direction of the scrap film 210, so that the scrap film 210 can be torn off from the surface of the product 200. When the clamping mechanism 110 moves above the waste material box, the clamping portion is opened, and the waste material film 210 can be thrown into the waste material box.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A film tearing device for tearing off a waste film attached to a surface of a product, comprising:

2. The film tearing device according to claim 1, wherein the clamping mechanism comprises a clamping cylinder and two clamping jaws, the clamping portion is formed between the two clamping jaws, and the clamping cylinder can drive the two clamping jaws to move towards or away from each other so as to switch the clamping portion between the open state and the closed state.

3. The film tearing device according to claim 2, wherein the clamping mechanism further comprises a speed regulating valve, and the speed regulating valve is arranged on the clamping cylinder and can regulate the air inlet and outlet speeds of the clamping cylinder.

4. The film tearing apparatus of claim 1, wherein the inner wall of the grip portion is formed with an anti-adhesive coating.

5. The film tearing apparatus of claim 4, wherein the release coating is a Teflon ® coating.

6. The film tearing device according to claim 1, wherein an air outlet is further formed in the inner wall of the clamping portion, and air can be blown towards the middle of the clamping portion through the air outlet.

7. The film tearing apparatus according to claim 1, further comprising a detection mechanism capable of detecting the presence of the waste film within the nip.

8. The film tearing device according to claim 7, wherein the detection mechanism comprises a first electrode and a second electrode arranged on an inner wall of the clamping portion, when the clamping portion is in the closed state, the first electrode is in contact with and conducted with the second electrode, and when the clamping portion is in the open state, the first electrode is far away from the second electrode.

9. The film tearing apparatus of claim 8, wherein said first electrode is resiliently abutted to said second electrode when said gripping portion is in the closed state.

10. The film tearing device according to claim 9, wherein the detection mechanism further comprises a sliding sleeve and a spring, the sliding sleeve is fixed on the inner wall of the clamping portion, the first electrode is slidably disposed in the sliding sleeve, and two ends of the spring respectively abut against the first electrode and the sliding sleeve.