Film tearing device

By designing the peeling knife and jaw structure in the film tearing device, the separation of the glue layer and the release layer is automatically achieved, solving the problem of low manual separation efficiency and improving production efficiency.

CN223086450UActive Publication Date: 2025-07-11BOZHON PRECISION IND TECH CO LTD
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Patent Information

Application Number
CN202421780774.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-07-11
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

In the prior art, the separation of the glue layer and the release layer of the rubber strip depends on manual operation, resulting in low work efficiency, high labor intensity and low assembly efficiency.

Method used

A film tearing device is designed, including a peeling knife, a jaw and a driving mechanism. The blade of the peeling knife extends between the release layer of the rubber strip and the edge of the rubber layer. The jaw and the peeling knife are close to each other under the drive of the driving mechanism, and the release layer and the rubber layer are separated.

Benefits of technology

Automatic separation between the glue layer and the release layer is achieved, production and assembly efficiency is improved, and automation is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model discloses a film tearing device which comprises a stripping knife, a film tearing device and a film tearing device, and the cutting edge of the stripping knife is used for stretching into the edge between a release layer and an adhesive layer of an adhesive tape to separate the release layer from the adhesive layer; the clamping jaw is arranged below the stripping knife and movably connected with the stripping knife, the driving mechanism is used for driving the clamping jaw and the stripping knife to get close to each other or get away from each other, and the release layer separated by the stripping knife can be attached to the lower surface of the stripping knife and enters the space between the stripping knife and the clamping jaw; and the clamping jaw and the stripping knife are close to each other to clamp the release layer, so that the release layer and the adhesive layer of the adhesive tape are completely separated. According to the film tearing device provided by the embodiment of the invention, the stripping knife separates the release layer from the adhesive layer, and the clamping jaw and the stripping knife are driven by the driving mechanism to clamp the release layer, so that the release layer of the adhesive tape is fixed, a product can take the adhesive layer to leave the film tearing device, the separation of the release layer and the adhesive layer is realized, automatic film tearing is realized through a simple structure, and the production efficiency is improved. The automation degree is high and the production and assembly efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the field of film tearing, in particular to a film tearing device. Background Art

[0002] In manufacturing, especially in the process of product packaging, it is often necessary to bond two components with an adhesive tape. The adhesive tape usually has a release layer and an adhesive layer. The assembly process usually attaches the adhesive tape to one of the components through the adhesive layer. After removing the release layer of the adhesive tape, the two components are bonded through the adhesive layer. However, the adhesive tape is usually formed by cutting with a cutter, and the edges of the release layer and the adhesive layer of the adhesive tape are often flush. The prior art mainly relies on manual operation to separate the adhesive layer and the release layer of the adhesive tape, resulting in low work efficiency, high labor intensity, and low assembly efficiency. Summary of the Utility Model

[0003] The technical problem to be solved by the embodiments of the present utility model is to provide a film tearing device that can automatically separate the adhesive layer and the release layer of an adhesive tape with flush edges instead of manual operation.

[0004] To solve the above technical problem, the present utility model provides a film tearing device, including: a peeling knife, the blade of the peeling knife is used to extend between the edge of the release layer and the adhesive layer of the adhesive tape to separate the release layer and the adhesive layer; a clamping jaw, arranged below the peeling knife and movably connected to the peeling knife, and a driving mechanism for driving the clamping jaw and the peeling knife to approach or move away from each other. Among them, the release layer separated by the peeling knife can adhere to the lower surface of the peeling knife and enter between the peeling knife and the clamping jaw; the clamping jaw and the peeling knife approach each other to clamp the release layer, and completely separate the release layer and the adhesive layer of the adhesive tape.

[0005] In a feasible embodiment, the driving mechanism is a clamping cylinder, and the output ends of the clamping cylinder are respectively connected to the clamping jaw and the peeling knife.

[0006] In a feasible embodiment, the peeling knife has a continuous first upper surface and a lower surface, the first upper surface and the lower surface form the blade of the peeling knife, there is a first included angle between the first upper surface and the lower surface, and there is a second included angle between the lower surface and the horizontal plane.

[0007] In a feasible embodiment, the first upper surface has a non-stick coating.

[0008] In a feasible implementation, the first upper surface is parallel to the horizontal plane. The peeling knife has a second upper surface, which is continuous with one side of the first upper surface away from the lower surface. There is a third included angle between the second upper surface and the first upper surface, and the third included angle is an obtuse angle.

[0009] In a feasible implementation, a clamping boss is provided on the clamping jaw.

[0010] In a feasible implementation, it further includes a first waste collection box, which is arranged below the peeling knife and the clamping jaw, and is used to collect the release layer of the adhesive tape that falls between the peeling knife and the clamping jaw after the peeling knife and the clamping jaw move away from each other.

[0011] In a feasible implementation, a vacuum adsorption mechanism is further provided below the first waste collection box, and the vacuum adsorption mechanism is used to suck the release layer of the adhesive tape from the first waste collection box.

[0012] In a feasible implementation, a second waste collection box is provided below the vacuum adsorption mechanism, and the second waste collection box is used to collect the waste sucked by the vacuum adsorption mechanism.

[0013] In a feasible implementation, a chamfer is provided on the peeling knife.

[0014] In a feasible implementation, the film tearing device further includes a manipulator mechanism, which is used to drive the edge of the adhesive tape close to the blade of the peeling knife and then drive the adhesive layer of the adhesive tape away from the peeling knife.

[0015] The film tearing device provided by the embodiment of the present application includes a peeling knife, a clamping jaw and a driving mechanism. The blade of the peeling knife is used to extend between the edge of the release layer and the adhesive layer of the adhesive tape to separate the release layer from the adhesive layer. The clamping jaw and the peeling knife are driven by the driving mechanism to approach each other to clamp the release layer. In this way, the release layer of the adhesive tape is fixed, and the product can leave the film tearing device with the adhesive layer, realizing the separation of the release layer and the adhesive layer. In this way, automatic film tearing can be realized through a simple structure, with a high degree of automation, improving the production and assembly efficiency, and being conducive to wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the film tearing device shown in an embodiment of the present application;

[0017] Figure 2 is Figure 1 a partial three-dimensional structural schematic diagram of the film tearing device shown;

[0018] Figure 3 Is Figure 1 A perspective structural schematic diagram of another angle of the jaw and the peeling knife of the film peeling device shown;

[0019] Figure 4 Is Figure 1 A side view of the peeling knife of the film peeling device shown;

[0020] Figure 5 Is Figure 1 A perspective structural schematic diagram of another angle of the jaw and the peeling knife of the film peeling device shown.

[0021] Reference numerals in the figure:

[0022] 100 - Film peeling device;

[0023] 110 - Peeling knife, 111 - First upper surface, 112 - Lower surface, 113 - Second upper surface, 114 - Chamfer, 115 - Peeling boss,

[0024] 120 - Jaw, 121 - Clamping boss, 122 - Slide groove,

[0025] 130 - Driving mechanism, 131 - Finger,

[0026] 140 - First waste collection box,

[0027] 150 - Vacuum adsorption mechanism,

[0028] 160 - Second waste collection box;

[0029] α - First included angle, β - Second included angle, γ - Third included angle, Σ - Tilt angle, HP - Horizontal plane. Detailed implementation manners

[0030] In order to make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art belonging to the technical field of the present utility model. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Please refer to Figures 1 to 5 , an embodiment of the present application provides a film tearing device 100. The film tearing device 100 includes a peeling knife 110, a clamping jaw 120, and a driving mechanism 130. Among them, the blade of the peeling knife 110 is used to extend between the edge of the release layer and the adhesive layer of the adhesive strip to separate the release layer from the adhesive layer. The clamping jaw 120 is disposed below the peeling knife 110, and the clamping jaw 120 is movably connected to the peeling knife 110 through the driving mechanism 130. The driving mechanism 130 is used to drive the clamping jaw 120 and the peeling knife 110 to approach or move away from each other. Among them, the release layer separated by the peeling knife 110 can adhere to the lower surface 112 of the peeling knife 110 and enter between the peeling knife 110 and the clamping jaw 120. The clamping jaw 120 and the peeling knife 110 approach each other to clamp the release layer, and completely separate the release layer of the adhesive strip from the adhesive layer.

[0033] The film tearing device 100 provided by the embodiment of the present application includes a peeling knife 110, a clamping jaw 120, and a driving mechanism 130. The blade of the peeling knife 110 is used to extend between the edge of the release layer and the adhesive layer of the adhesive strip to separate the release layer from the adhesive layer. The clamping jaw 120 and the peeling knife 110 approach each other under the drive of the driving mechanism 130 to clamp the release layer. In this way, the release layer of the adhesive strip is fixed, and the product can leave the film tearing device 100 with the adhesive layer, realizing the separation of the release layer and the adhesive layer. In this way, automatic film tearing can be achieved through a simple structure, with a high degree of automation, improving the production and assembly efficiency, and being conducive to wide application.

[0034] In a feasible embodiment, such as Figure 1 and Figure 5As shown, the driving mechanism 130 is a pneumatic finger 131 cylinder. The output ends of the pneumatic finger 131 cylinder are respectively connected to the clamping jaw 120 and the peeling knife 110. The pneumatic finger 131 cylinder can also be called a parallel clamping jaw 120 or a pneumatic gripper. The pneumatic finger 131 cylinder can be composed of two parallelly moving fingers 131, and the opening and closing actions of the fingers 131 are driven by the pressure of compressed air. The moving directions of the clamping jaws 120 of the pneumatic finger 131 cylinder remain parallel, so as to ensure stability and accuracy during grasping. The pneumatic finger 131 cylinder can control the clamping force by adjusting the air pressure, is suitable for objects of different weights and shapes, and can be installed with a position sensor (such as a magnetic switch) to detect the opening and closing states of the fingers 131, which is convenient for realizing automatic control. The pneumatic finger 131 cylinder is small in size and light in weight, making the structure of the film tearing device 100 provided by the embodiment of the present application more concise. Most importantly, the two fingers 131 of the pneumatic finger 131 cylinder approach each other. On the one hand, the clamping jaw 120 and the peeling knife 110 can clamp the release layer of the adhesive tape, and on the other hand, the peeling knife 110 can be far away from the adhesive layer of the adhesive tape, further facilitating the peeling of the release layer. It can be understood that the adhesive tape originally adheres to the blade of the peeling knife 110, that is to say, both the adhesive layer and the release layer of the adhesive tape adhere to the peeling knife 110, the adhesive layer is on the upper side, and the release layer is on the lower side. When the pneumatic finger 131 cylinder drives the two fingers 131 to approach each other, the peeling knife 110 moves downward. When the position of the adhesive tape is fixed, the peeling knife 110 pushes the release layer away from the adhesive tape, further facilitating the separation of the release layer and the adhesive layer. Further, the clamping jaw 120 and the peeling knife 110 can be fixed to the output end of the pneumatic finger 131 cylinder through fasteners. Preferably, the clamping jaw 120 can be provided with a chute 122 corresponding to the finger 131 of the pneumatic finger 131 cylinder, and the clamping jaw 120 and the cylinder are assembled through the cooperation of the chute 122 and the finger 131.

[0035] In a feasible implementation manner, as Figures 4 to 5 shown, the peeling knife 110 has a continuous first upper surface 111 and a lower surface 112. The first upper surface 111 and the lower surface 112 form the blade of the peeling knife 110. There is a first included angle α between the first upper surface 111 and the lower surface 112. There is a second included angle β between the lower surface 112 and the horizontal plane HP. The thinner the blade is, the better, or the smaller the first included angle α is, the better, so that the peeling knife 110 can be easily inserted between the adhesive layer and the release layer of the adhesive tape, and the adhesive layer and the release layer can be better separated. The second included angle β is an acute angle, that is to say, the lower surface 112 is an inclined surface, so that the separated release layer can slide along the lower surface 112 into the space between the clamping jaw 120 and the peeling knife 110, improving the clamping success rate and the film tearing efficiency.

[0036] In a feasible implementation manner, asFigures 4 to 5 As shown, the first upper surface 111 is parallel to the horizontal plane HP. The peeling knife 110 has a second upper surface 113. The second upper surface 113 is continuous with the side of the first upper surface 111 away from the lower surface 112. There is a third included angle γ between the second upper surface 113 and the first upper surface 111, and the third included angle γ is an obtuse angle. In this way, by setting the second upper surface 113, the upper surface of the peeling knife 110 is divided into two parts, further avoiding the adhesion between the upper surface of the peeling knife 110 and the adhesive layer. The first upper surface 111 being parallel to the horizontal plane HP also facilitates the film tearing process and simplifies the film tearing process.

[0037] In a feasible implementation manner, the first upper surface 111 has a non-stick coating. This can facilitate the separation of the adhesive layer and at the same time prevent the adhesive layer from sticking to the surface of the peeling knife 110, increasing the thickness of the cutting edge of the peeling knife 110 and affecting the film tearing efficiency and success rate. The non-stick coating can be a coating formed by well-known non-stick materials in the art. For example, polytetrafluoroethylene (PTFE, Teflon), fluorinated ethylene propylene (FEP), polyvinylidene fluoride (PVDF), and silicone polymer (Silicone), etc.

[0038] In a feasible implementation manner, as Figures 2 to 3 shown, a clamping boss 121 is provided on the clamping jaw 120. The cross-section of the clamping boss 121 is serrated, and correspondingly, the peeling knife 110 also has a peeling boss 115 structure corresponding to the serrated clamping boss 121. The serrated structure can increase the friction force on the surface in contact with the object, thereby providing a stronger grasping ability without increasing the pressure of the clamping jaw 120, which is particularly important for grasping a smooth or slippery release layer.

[0039] In a feasible implementation manner, as Figures 2 to 4 shown, a chamfer 114 is provided on the peeling knife 110. The chamfer 114 is provided at the end of the peeling knife 110 away from the driving mechanism 130, which is also the end where the peeling knife 110 first contacts the edge of the adhesive strip. The design of the chamfer 114 can, on the one hand, prevent the cutting edge of the peeling knife 110 from being too sharp and damaging the adhesive layer or the product, and on the other hand, can guide the cutting edge of the peeling knife 110 to be inserted between the adhesive layer and the release layer of the adhesive strip, improving the film tearing success rate.

[0040] In a feasible implementation manner, as Figures 2 to 4 shown, an inclination angle Σ is provided on the peeling knife 110, and the inclination angle Σ is provided on the same side as the chamfer 114. The setting of the inclination angle Σ can also facilitate the cutting edge of the peeling knife 110 to be inserted between the adhesive layer and the release layer of the adhesive strip, improving the film tearing success rate.

[0041] In a feasible implementation manner, asFigure 1 As shown, it further includes a first waste collection box 140. The first waste collection box 140 is arranged below the peeling knife 110 and the clamping jaw 120, and is used to collect the release layer of the adhesive tape that falls between the peeling knife 110 and the clamping jaw 120 after the peeling knife 110 and the clamping jaw 120 move away from each other. This can facilitate the collection of waste, that is, the release layer, improve the cleanliness of the production operation environment, and prevent the waste from affecting the production process.

[0042] In a feasible implementation manner, as Figure 1 shown, a vacuum adsorption mechanism 150 is further arranged below the first waste collection box 140. The vacuum adsorption mechanism 150 is used to suck the release layer of the adhesive tape from the first waste collection box 140. In this way, by setting the vacuum adsorption mechanism 150, the waste in the first waste collection box 140 can be sucked out, which is convenient for centralized treatment. At the same time, directly sucking the release layer separated by the peeling knife 110 in this way can avoid interfering with the film tearing process and improve the film tearing success rate.

[0043] In a feasible implementation manner, as Figure 1 shown, a second waste collection box 160 is arranged below the vacuum adsorption mechanism 150. The second waste collection box 160 is used to collect the waste sucked by the vacuum adsorption mechanism 150.

[0044] In a feasible implementation manner, the film tearing device 100 further includes a manipulator mechanism. The manipulator mechanism is used to drive the edge of the adhesive tape close to the blade of the peeling knife 110 and then drive the adhesive layer of the adhesive tape away from the peeling knife 110. Specifically, the manipulator can clamp the product with the adhesive tape attached and move it, fit the edge of the adhesive tape on the product to the edge of the peeling knife 110, and drive the product to move. In this way, during the process that the release layer of the adhesive tape is clamped by the clamping jaw 120 and the peeling knife 110, the manipulator can drive the product to move to simulate film tearing, or directly drive the product away from the blade to achieve automatic film tearing. The structure of the manipulator can be a structure well-known in the art and is not the focus of this application, so it will not be elaborated here.

[0045] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are proposed in this specification, so such modifications, improvements, and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0046] Meanwhile, this specification uses specific terms to describe the embodiments of this specification. For example, "an embodiment", "one embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0047] In addition, unless clearly stated in the claims, the order of the processing elements and sequences, the use of numerical and alphabetical characters, or the use of other names in this specification are not used to limit the order of the processes and methods in this specification. Although some useful utility model embodiments are discussed through various examples in the above disclosure, it should be understood that such details only serve the purpose of illustration. The appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that conform to the essence and scope of the embodiments of this specification.

[0048] Similarly, it should be noted that, in order to simplify the expression of the disclosure in this specification and thus help the understanding of one or more utility model embodiments, in the previous description of the embodiments of this specification, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than those mentioned in the claims. In fact, the features of the embodiments are less than all the features of the individual embodiments disclosed above.

[0049] In some embodiments, numbers are used to describe the components and the quantity of attributes. It should be understood that such numbers used for the description of embodiments are modified by the modifiers "about", "approximately", or "substantially" in some examples. Unless otherwise stated, "about", "approximately", or "substantially" indicate that the said numbers allow a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, and such approximate values can change according to the characteristics required by individual embodiments. In some embodiments, the numerical parameters should consider the specified significant digits and adopt the method of retaining general digits. Although the numerical ranges and parameters used to confirm the breadth of their scope in some embodiments of this specification are approximate values, in specific embodiments, such numerical settings are as precise as possible within the feasible range.

[0050] For each patent, patent application, patent application publication, and other materials cited in this specification, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated by reference into this specification. This excludes application history files that are inconsistent with or conflict with the content of this specification, as well as files that limit the broadest scope of the claims of this specification (currently or subsequently appended to this specification). It should be noted that if there are inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the supplementary materials of this specification and the content described in this specification, the descriptions, definitions, and / or uses of terms in this specification shall prevail.

[0051] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. A film tearing device, characterized in that, Including: A stripping knife, the blade of the stripping knife is used to extend between the edge of the release layer and the adhesive layer of the adhesive strip to separate the release layer from the adhesive layer; Jaw claws, arranged below the stripping knife and movably connected to the stripping knife, A driving mechanism for driving the jaw claws and the stripping knife to approach or move away from each other, Wherein, the release layer separated by the stripping knife can adhere to the lower surface of the stripping knife and enter between the stripping knife and the jaw claws; the jaw claws and the stripping knife approach each other to clamp the release layer, and completely separate the release layer of the adhesive strip from the adhesive layer.

2. The film tearing device according to claim 1, wherein The driving mechanism is a clamping air cylinder, and the output ends of the clamping air cylinder are respectively connected to the jaw claws and the stripping knife.

3. The film tearing device according to claim 1, characterized in that, The stripping knife has a continuous first upper surface and a lower surface, the first upper surface and the lower surface form the blade of the stripping knife, there is a first included angle between the first upper surface and the lower surface, and there is a second included angle between the lower surface and the horizontal plane.

4. The film tearing device according to claim 3, characterized in that, The first upper surface has a non-stick coating.

5. The film tearing device according to claim 3, characterized in that The first upper surface is parallel to the horizontal plane, the stripping knife has a second upper surface, the second upper surface is continuous with the side of the first upper surface away from the lower surface, and there is a third included angle between the second upper surface and the first upper surface, and the third included angle is an obtuse angle.

6. The film tearing device according to claim 1, characterized in that A clamping boss is arranged on the jaw claws.

7. The film tearing device according to claim 1, characterized in that It further includes a first waste collection box, the first waste collection box is arranged below the stripping knife and the jaw claws, and is used to collect the release layer of the adhesive strip that falls between the stripping knife and the jaw claws after the stripping knife and the jaw claws move away from each other.

8. The film tearing device according to claim 7, characterized in that, A vacuum adsorption mechanism is further arranged below the first waste collection box, and the vacuum adsorption mechanism is used to suck the release layer of the adhesive strip from the first waste collection box.

9. The film tearing device according to claim 8, wherein, A second waste collection box is arranged below the vacuum adsorption mechanism, and the second waste collection box is used to collect the waste sucked by the vacuum adsorption mechanism.

10. The film tearing device according to claim 9, characterized in that, A chamfer is arranged on the stripping knife.