Stripping mechanism and laminating equipment

Abstract

The embodiment of the utility model relates to the technical field of capacitor production equipment, in particular to a stripping mechanism and laminating equipment, which comprise an air exhaust assembly and a sucker assembly, the air exhaust assembly is provided with an air exhaust nozzle, the sucker assembly comprises a sucker body and a film layer, the sucker body is provided with an air exhaust port, an adsorption surface and a first adsorption hole, and the film layer is provided with a second adsorption hole. The air exhaust opening is communicated with the air exhaust nozzle, the first adsorption hole is located in the adsorption surface and communicated with the air exhaust opening, the film layer is attached to the adsorption surface, the film layer is provided with a second adsorption hole penetrating through the film layer, the second adsorption hole corresponds to the first adsorption hole, and the first adsorption hole is communicated with the air exhaust opening. And the second adsorption holes are used for adsorbing ceramic membranes. By means of the mode, the possibility that the suction cup assembly causes mechanical damage to the ceramic diaphragm can be reduced.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of capacitor production equipment, and in particular to a peeling mechanism and a laminating device. Background Art

[0002] In the manufacturing process of MLCC (Multilayer Ceramic Capacitor), the lamination process is a key step, which mainly uses lamination equipment to peel off the ceramic diaphragm printed with internal electrodes from the PET (polyethylene terephthalate) film, and stack them into capacitor structure blocks according to a certain relative position and number of layers. The lamination equipment generally includes a feeding mechanism, a peeling mechanism and a lamination mechanism. The feeding mechanism transports the printed ceramic diaphragm and the PET film to the peeling mechanism, the peeling mechanism peels the printed ceramic diaphragm from the PET film, and the lamination mechanism stacks the peeled ceramic diaphragm into capacitor structure blocks according to a certain relative position and number of layers; the peeling mechanism of the lamination equipment generally includes a vacuum pump and a suction cup, the suction cup is provided with an adsorption hole connected to the vacuum pump, and the vacuum pump generates negative pressure in the adsorption hole by pumping air, so that the adsorption hole can adsorb the printed ceramic diaphragm, and then the ceramic diaphragm is peeled off from the PET film.

[0003] However, in the process of realizing the utility model, the inventors found that: in order to make the suction cup have better wear resistance and sealing performance, the peeling mechanism of the lamination equipment currently on the market is generally formed in one piece with metal material. However, the metal suction cup has a relatively high hardness and is prone to cause mechanical damage to the ceramic diaphragm during the process of adsorbing and peeling off the ceramic diaphragm. In particular, the ceramic diaphragm of the high-capacity MLCC is thinner, and the mechanical damage caused to the ceramic diaphragm by the metal suction cup is more serious, thereby affecting the capacity, BDV (Breakdown Voltage) and reliability parameters of the MLCC product. Utility Model Content

[0004] In view of the above problems, the embodiments of the present invention provide a peeling mechanism and a laminating device, which overcome the above problems or at least partially solve the above problems.

[0005] According to one aspect of an embodiment of the utility model, a peeling mechanism is provided, including an exhaust assembly and a suction cup assembly, the exhaust assembly is provided with an exhaust nozzle, the suction cup assembly includes a suction cup body and a film layer, the suction cup body is provided with an exhaust port, an adsorption surface and a first adsorption hole, the exhaust port is connected to the exhaust nozzle, the first adsorption hole is located on the adsorption surface, and the first adsorption hole is connected to the exhaust port, the film layer is attached to the adsorption surface, the film layer is provided with a second adsorption hole that penetrates the film layer, the second adsorption hole corresponds to the first adsorption hole, and the second adsorption hole is used to adsorb the ceramic diaphragm.

[0006] In some embodiments, a size of the second adsorption hole is smaller than a size of the first adsorption hole.

[0007] In some embodiments, there are multiple first adsorption holes and second adsorption holes, the multiple first adsorption holes are evenly distributed on the adsorption surface, the multiple first adsorption holes are connected to the exhaust port, and one second adsorption hole corresponds to one first adsorption hole.

[0008] In some embodiments, some of the first adsorption holes are close to the edge of the adsorption surface; and / or some of the second adsorption holes are close to the edge of the film layer.

[0009] In some embodiments, the size of the first adsorption hole near the edge of the adsorption surface is larger than the size of the first adsorption hole near the center of the adsorption surface; and / or the size of the second adsorption hole near the edge of the membrane layer is larger than the size of the second adsorption hole near the center of the membrane layer.

[0010] In some embodiments, the material of the film layer is a polymer material.

[0011] In some embodiments, the film layer is attached to the adsorption surface by adhesive.

[0012] In some embodiments, an air cavity is provided inside the suction cup body, and the air cavity is respectively connected to the first adsorption hole and the exhaust port.

[0013] In some embodiments, the vacuum assembly includes a vacuum pump and an air pipe, the vacuum pump is provided with the vacuum nozzle, one end of the air pipe is connected to the vacuum nozzle, and the other end of the air pipe is connected to the exhaust port.

[0014] According to one aspect of the embodiments of the utility model, a lamination device is provided, comprising the above-mentioned peeling mechanism.

[0015] The beneficial effects of the embodiment of the utility model are as follows: Different from the prior art, the embodiment of the utility model provides a peeling mechanism, including an exhaust component and a suction cup component, the exhaust component is provided with an exhaust nozzle; the suction cup component includes a suction cup body and a film layer, the suction cup body is provided with an exhaust port, an adsorption surface and a first adsorption hole, the exhaust port is connected to the exhaust nozzle, the first adsorption hole is located on the adsorption surface, and the first adsorption hole is connected to the exhaust port, the film layer is attached to the adsorption surface, the film layer is provided with a second adsorption hole that penetrates the film layer, the second adsorption hole corresponds to the first adsorption hole, and the second adsorption hole is used to adsorb the ceramic diaphragm. In this way, by attaching the film layer to the adsorption surface of the suction cup body, the suction cup assembly directly contacts the ceramic diaphragm through the film layer during the process of adsorbing and peeling the ceramic diaphragm, and the film layer is softer than the metal suction cup body, which can reduce the possibility of mechanical damage to the ceramic diaphragm, thereby reducing the impact on the parameters such as capacity, BDV and reliability of MLCC products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional diagram of the peeling mechanism provided by the embodiment of the utility model;

[0018] Figure 2 is a three-dimensional diagram of a suction cup assembly provided in an embodiment of the utility model;

[0019] Figure 3 is a cross-sectional view of a suction cup assembly provided by an embodiment of the utility model;

[0020] Figure 4 is a cross-sectional view of the suction cup assembly provided by an embodiment of the utility model from another perspective;

[0021] Figure 5 It is a three-dimensional diagram of a suction cup body provided by an embodiment of the utility model;

[0022] Figure 6 It is a three-dimensional diagram of the film layer provided by the embodiment of the utility model.

[0023] The reference numerals in the specific implementation manner are as follows:

[0024] 1000, stripping mechanism;

[0025] 100, air extraction assembly; 11, air extraction pump; 111, air extraction nozzle; 12, air pipe;

[0026] 200, suction cup assembly; 21, suction cup body; 211, exhaust port; 212, suction surface; 213, first suction hole; 214, air cavity; 22, membrane layer; 221, second suction hole. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0029] The lamination process is a key step in the MLCC manufacturing process. It mainly uses lamination equipment to peel off the ceramic diaphragm printed with internal electrodes from the PET film, and stack them into capacitor structural blocks according to a certain relative position and number of layers. The lamination equipment generally includes a feeding mechanism, a peeling mechanism and a lamination mechanism. The feeding mechanism transports the printed ceramic diaphragm and PET film to the peeling mechanism, the peeling mechanism peels the printed ceramic diaphragm from the PET film, and the lamination mechanism stacks the peeled ceramic diaphragm into capacitor structural blocks according to a certain relative position and number of layers; the peeling mechanism of the lamination equipment generally includes a vacuum pump and a suction cup. The suction cup is provided with an adsorption hole connected to the vacuum pump. The vacuum pump generates negative pressure in the adsorption hole by pumping air, so that the adsorption hole can adsorb the printed ceramic diaphragm, and then the ceramic diaphragm is peeled off from the PET film.

[0030] The suction cup of the peeling mechanism of existing lamination equipment is generally made of metal, which makes the suction cup relatively hard and easily causes mechanical damage to the ceramic diaphragm during the process of adsorbing and peeling the ceramic diaphragm. In particular, the ceramic diaphragm of high-capacity MLCC is thinner, and the mechanical damage caused to the ceramic diaphragm by the metal suction cup is more serious, thereby affecting the capacity, BDV, reliability and other parameters of the MLCC product.

[0031] In the embodiment of the present application, a film layer with adsorption holes is attached to the adsorption surface of the suction cup body, so that the suction cup assembly is in direct contact with the ceramic diaphragm through the film layer during the process of adsorption and peeling off the ceramic diaphragm. The film layer is softer than the metal suction cup body, which can reduce the possibility of mechanical damage to the ceramic diaphragm, thereby reducing the impact on parameters such as capacity, BDV and reliability of MLCC products.

[0032] In order to facilitate readers to understand the inventive concept of the present application, the specific structure of the peeling mechanism is described below:

[0033] See also Figure 1-4 The peeling mechanism 1000 includes an exhaust component 100 and a suction cup component 200. The exhaust component 100 is provided with an exhaust nozzle 111. The suction cup component 200 includes a suction cup body 21 and a film layer 22. The suction cup body 21 is provided with an exhaust port 211, an adsorption surface 212 and a first adsorption hole 213. The exhaust port 211 is connected to the exhaust nozzle 111. The first adsorption hole 213 is located on the adsorption surface 212, and the first adsorption hole 213 is connected to the exhaust port 211. The film layer 22 is attached to the adsorption surface 212. The film layer 22 is provided with a second adsorption hole 221 that penetrates the film layer 22. The second adsorption hole 221 corresponds to the first adsorption hole 213. The second adsorption hole 221 is used to adsorb the ceramic diaphragm. When the vacuum assembly 100 is working, the vacuum nozzle 111 of the vacuum assembly 100 evacuates the exhaust port 211 so that the first adsorption hole 213 and the second adsorption hole 221 generate negative pressure, thereby generating an adsorption force, so that the second adsorption hole 221 can adsorb the printed ceramic diaphragm, and then peel the ceramic diaphragm off the PET film. In this way, by attaching the film layer 22 to the adsorption surface 212 of the suction cup body 21, the suction cup assembly 200 directly contacts the ceramic diaphragm through the film layer 22 during the process of adsorbing and peeling the ceramic diaphragm. Compared with the metal suction cup body 21, the film layer 22 is softer, which can reduce the possibility of mechanical damage to the ceramic diaphragm, thereby reducing the impact on the parameters such as capacity, BDV and reliability of MLCC products.

[0034] Further, the size of the second adsorption hole 221 is smaller than the size of the first adsorption hole 213, so that the adsorption force of the second adsorption hole 221 is not lower than the adsorption force of the first adsorption hole 213. It can be understood that after the adsorption surface 212 of the suction cup body 21 is attached to the film layer 22, there may be a gap between the adsorption surface 212 and the film layer 22, resulting in air leakage, which in turn causes the adsorption force of the second adsorption hole 221 of the film layer 22 to be lower than the adsorption force of the first adsorption hole 213 of the suction cup body 21. Therefore, it is necessary to consider improving the adsorption force of the second adsorption hole 221. In the adsorption device, the size of the adsorption hole has a significant effect on the adsorption force. When the size of the adsorption hole is small, the adsorption force is often greater. Therefore, the size of the second adsorption hole 221 can be designed to be smaller than the size of the first adsorption hole 213, so that the adsorption force of the second adsorption hole 221 is not lower than the adsorption force of the first adsorption hole 213. Among them, the pore size of the first adsorption hole 213 can be 80-110μm, and the pore size of the second adsorption hole 221 can be 17μm.

[0035] In some implementations, please also refer to Figure 5-6 , there are multiple first adsorption holes 213 and multiple second adsorption holes 221. In this way, when the adsorption component is working, multiple first adsorption holes 213 and second adsorption holes 221 can generate adsorption force; further, multiple first adsorption holes 213 are evenly distributed on the adsorption surface 212, and multiple first adsorption holes 213 are connected to the exhaust port 211. One second adsorption hole 221 corresponds to one first adsorption hole 213, so that the surface of the membrane layer 22 can generate uniform adsorption force, thereby better adsorbing the ceramic diaphragm.

[0036] Further, some of the first adsorption holes 213 are close to the edge of the adsorption surface 212; and / or some of the second adsorption holes 221 are close to the edge of the film layer 22. In this way, the adsorption force of the edge of the suction cup assembly 200 can be improved, so that the edge of the suction cup assembly 200 can adsorb the ceramic diaphragm. In this way, when the peeling mechanism 1000 peels the ceramic diaphragm off the PET film and the ceramic diaphragm needs to be cut, the staff can directly cut the ceramic diaphragm adsorbed by the suction cup assembly 200. During the cutting process, the ceramic diaphragm is easily affected by external forces and falls off from the edge of the suction cup assembly 200. Therefore, by improving the adsorption force of the edge of the suction cup assembly 200, the ceramic diaphragm is not easy to fall off from the edge of the suction cup assembly 200.

[0037] In some embodiments, the size of the first adsorption hole 213 near the edge of the adsorption surface 212 is larger than the size of the first adsorption hole 213 near the center of the adsorption surface 212, so that the aperture of the first adsorption hole 213 at the edge of the adsorption surface 212 can extend to the edge of the adsorption surface 212, thereby improving the adsorption force of the edge of the adsorption component, wherein the aperture of the first adsorption hole 213 near the edge of the adsorption surface 212 can be expanded to 1.5~2mm; and / or, the size of the second adsorption hole 221 near the edge of the film layer 22 is larger than the size of the second adsorption hole 221 near the center of the film layer 22, so that the aperture of the second adsorption hole 221 at the edge of the film layer 22 can extend to the edge of the film layer 22, thereby improving the adsorption force of the edge of the adsorption component.

[0038] For the above-mentioned film layer 22, the material of the film layer 22 is a polymer material, so that the film layer 22 has good wear resistance and softness. For example, the material of the film layer 22 can be polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) or polystyrene (PS), wherein the thickness of the film layer 22 is preferably 0.22 mm.

[0039] In some embodiments, the film layer 22 is attached to the adsorption surface 212 by adhesive, so that the adhesive can firmly fix the film layer 22 on the adsorption surface 212, thereby enhancing the adhesion between the two. This strong connection makes the film layer 22 not easy to fall off or shift, and can maintain a stable attachment state even under external force or environmental changes. Compared with traditional fixing methods, using adhesive to attach the film layer 22 is more convenient and quick, without the need for complex fixing devices or additional installation steps. It is only necessary to evenly apply the adhesive on the adsorption surface 212, and then attach the film layer 22, which greatly saves installation time and labor costs. In addition, the sealing performance of the adhesive can effectively prevent external substances such as liquids, gases or dust from penetrating between the film layer 22 and the adsorption surface 212. This sealing performance not only improves the protective effect of the film layer 22, but also prevents performance degradation or damage caused by the intrusion of external substances. When the film layer 22 needs to be replaced or maintained, the old film layer 22 is simply torn off the adsorption surface 212, and then the surface is cleaned and the adhesive is reapplied to attach a new film layer 22. This simple replacement process reduces maintenance costs and improves the availability and reliability of the equipment.

[0040] It is understandable that the glue between the film layer 22 and the adsorption surface 212 can also be replaced by other materials, such as silicone, natural rubber or synthetic rubber, hot melt adhesive or double-sided tape.

[0041] For the above-mentioned suction cup body 21, an air cavity 214 is provided inside the suction cup body 21, and the air cavity 214 is respectively connected with the first suction hole 213 and the exhaust port 211. In this way, the plurality of first suction holes 213 can be respectively connected with the air cavity 214, and the air cavity 214 only needs to be connected with one exhaust port 211, that is, through the air cavity 214, one exhaust port 211 can be respectively connected with a plurality of first suction holes 213, thereby reducing the number of exhaust ports 211, and in addition, the regulating effect of the exhaust port 211 on the plurality of first suction holes 213 is also improved.

[0042] For the above-mentioned vacuum component 100, the vacuum component 100 includes a vacuum pump 11 and an air pipe 12. The vacuum pump 11 is provided with the vacuum nozzle 111. One end of the air pipe 12 is connected to the vacuum nozzle 111, and the other end of the air pipe 12 is connected to the exhaust port 211. In this way, when the vacuum pump 11 is working, the gas at the exhaust port 211 will flow to the vacuum nozzle 111 through the air pipe 12, and the exhaust port 211 will generate negative pressure, so that the first adsorption hole 213 generates negative pressure, and then generates adsorption force.

[0043] It is understandable that the vacuum assembly 100 may further include an exhaust valve (not shown), which is disposed between the vacuum pump 11 and the exhaust port 211 . The exhaust valve may control the flow and pressure of the gas, and thus control the adsorption force of the first adsorption hole 213 .

[0044] In an embodiment of the utility model, the peeling mechanism 1000 includes an exhaust component 100 and a suction cup component 200, the exhaust component 100 is provided with an exhaust nozzle 111; the suction cup component 200 includes a suction cup body 21 and a film layer 22, the suction cup body 21 is provided with an exhaust port 211, an adsorption surface 212 and a first adsorption hole 213, the exhaust port 211 is connected to the exhaust nozzle 111, the first adsorption hole 213 is located on the adsorption surface 212, and the first adsorption hole 213 is connected to the exhaust port 211, the film layer 22 is attached to the adsorption surface 212, the film layer 22 is provided with a second adsorption hole 221 that penetrates the film layer 22, the second adsorption hole 221 corresponds to the first adsorption hole 213, and the second adsorption hole 221 is used to adsorb the ceramic diaphragm. In this way, by attaching the film layer 22 to the adsorption surface 212 of the suction cup body 21, the suction cup assembly 200 is in direct contact with the ceramic diaphragm through the film layer 22 during the process of adsorbing and peeling off the ceramic diaphragm. The film layer 22 is softer than the metal suction cup body 21, which can reduce the possibility of mechanical damage to the ceramic diaphragm, thereby reducing the impact on parameters such as capacity, BDV and reliability of MLCC products.

[0045] The utility model further provides an embodiment of a laminating device, wherein the laminating device comprises the above-mentioned peeling mechanism 1000. The function and structure of the peeling mechanism 1000 may refer to the above-mentioned embodiment, and will not be described in detail here.

[0046] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A peeling mechanism, characterized in that: include: An air extraction component is provided with an air extraction nozzle; The suction cup assembly includes a suction cup body and a film layer, the suction cup body is provided with an exhaust port, an adsorption surface and a first adsorption hole, the exhaust port is connected to the suction nozzle, the first adsorption hole is located on the adsorption surface, and the first adsorption hole is connected to the exhaust port, the film layer is attached to the adsorption surface, the film layer is provided with a second adsorption hole that penetrates the film layer, the second adsorption hole corresponds to the first adsorption hole, and the second adsorption hole is used to adsorb the ceramic diaphragm.

2. The peeling mechanism according to claim 1, characterized in that: The size of the second adsorption hole is smaller than that of the first adsorption hole.

3. The peeling mechanism according to claim 1, characterized in that: There are multiple first adsorption holes and second adsorption holes, and the multiple first adsorption holes are evenly distributed on the adsorption surface. The multiple first adsorption holes are connected to the exhaust port, and one second adsorption hole corresponds to one first adsorption hole.

4. The peeling mechanism according to claim 3, characterized in that: A plurality of the first adsorption holes are close to the edge of the adsorption surface; and / or, A plurality of the second adsorption holes are close to the edge of the membrane layer.

5. The peeling mechanism according to claim 3, characterized in that: The size of the first adsorption hole near the edge of the adsorption surface is larger than the size of the first adsorption hole near the center of the adsorption surface; and / or, The size of the second adsorption holes near the edge of the film layer is greater than the size of the second adsorption holes near the center of the film layer.

6. The peeling mechanism according to claim 1, characterized in that: The material of the film layer is a polymer material.

7. The peeling mechanism according to claim 1, characterized in that: The film layer is attached to the adsorption surface by adhesive.

8. The peeling mechanism according to any one of claims 1 to 7, characterized in that: An air cavity is arranged inside the suction cup body, and the air cavity is communicated with the first adsorption hole and the exhaust port respectively.

9. The peeling mechanism according to any one of claims 1 to 7, characterized in that: The air extraction component comprises an air extraction pump and an air pipe. The air extraction pump is provided with the air extraction nozzle. One end of the air pipe is connected to the air extraction nozzle, and the other end of the air pipe is connected to the exhaust port.

10. A lamination device, characterized in that: The invention comprises a peeling mechanism as claimed in any one of claims 1 to 9.

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