Film Peeling Device

Abstract

The present invention relates to a film peeling device that removes a release film from a pad having a release film attached to its lower part, and includes a pair of rollers that pressurize the upper and lower parts of the pad, and a film removing unit that is arranged adjacent to the rollers and removes the release film from the pad as it passes by the rollers, and the film removing unit includes a support base that supports the lower part of the pad, and a separating member that separates the release film from the pad supported on the support base at the rear end of the support base.

Description

[Technical Field]

[0001] The present invention relates to a film peeling device, and more specifically to a film peeling device that can effectively remove a release film from a pad having a release film attached to its surface.

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2023-0155048, filed November 10, 2023, and all contents disclosed in the documents of this Korean patent application are incorporated herein by reference. [Background technology]

[0003] The operating voltage of one cell included in a secondary battery is approximately 2.5 V to 4.5 V. Therefore, if a higher output voltage is required, a battery pack may be configured by connecting a plurality of cells in series.

[0004] When constructing a battery pack by connecting multiple cells in series / parallel, it is common to first construct a cell assembly including at least two cells, and then add this cell assembly and other components to construct the battery pack.

[0005] In the manufacturing process of such a secondary battery, various pads and plates may be additionally used. For example, in the case of a cell assembly including a plurality of stacked cells, pads may be interposed between the cells to mitigate shocks that may occur between the cells.

[0006] Fig. 1 shows an example of a conventional cell assembly 10, in which a plurality of cells 11 are stacked side by side. In this case, a pad P is interposed between any pair of cells 11, as shown in Fig. 1, to serve as a buffer.

[0007] The pad P may have a component such as an adhesive applied to its surface in order to be effectively fixed to the adjacently arranged cell 11.

[0008] Therefore, the pad P is transferred with a release film F attached thereto to protect the adhesive component or the surface of the pad P from the external environment during the production process. At this time, the release film F is removed from the pad P before the pad is introduced into the cell assembly 10.

[0009] FIG. 2 is a perspective view of a conventional film peeling device used to remove the release film F from the pad P.

[0010] Referring to FIG. 2, a conventional film peeling device is composed of a separating member 30 arranged to face the sharp end toward the pad P, and a pair of rollers 20 that guide the pad P to the separating member 30.

[0011] The separating member 30 separates the pad P passing through the roller 20 and the release film F attached to the lower part of the pad P, and removes the release film F from the pad P.

[0012] However, as the thickness and other specifications of the pad P used vary, problems may arise in the process of removing the release film F.

[0013] FIG. 3 illustrates an embodiment of the use of the film peeling device of FIG. 2 to remove release films F from pads P of different thicknesses.

[0014] When the pad P is thick, the highly compressible pad P expands significantly when passing through the roller 20, causing the release film F attached to the lower portion to be positioned lower than before. Therefore, the separating member 30 cannot completely remove the release film F, and cuts or damages the pad P.

[0015] In order to solve the above problems, it is necessary to develop a film peeling device that can be applied to pads P of any standard. [Prior art documents] [Patent documents]

[0016] [Patent Document 1] Korean Patent Publication No. 10-2023-0109434 Summary of the Invention [Problem to be solved by the invention]

[0017] Therefore, the present invention has been devised to solve the above problems, and an object of the present invention is to provide a film peeling device that can effectively remove a release film from a pad.

[0018] Other objects and advantages of the present invention can be understood from the following description and become more apparent from the embodiments of the present invention. Also, it is easily understood that the objects and advantages of the present invention can be realized by the means and combinations thereof as set forth in the claims. [Means for solving the problem]

[0019] According to the present invention, there is provided a film peeling device for removing a release film from a pad having a release film attached to its lower portion.

[0020] The film peeling device includes a pair of rollers that pressurize the upper and lower parts of the pad, and a film removing unit that is arranged adjacent to the rollers and removes the release film from the pad as it passes through the rollers, and the film removing unit includes a support base that supports the lower part of the pad, and a separating member that separates the release film from the pad supported on the support base at the rear end of the support base.

[0021] The support base may include a support surface at its upper portion that supports a lower portion of the pad to guide the movement of the pad.

[0022] The support surface may be flat in shape.

[0023] The support table may have an upper portion that is inclined so that the height of the pad that moves on the support surface increases.

[0024] The support base may have an upper portion that is inclined in a curved shape.

[0025] The separating member may include a blade at an end facing the support base.

[0026] An end of the separating member is spaced a predetermined distance from the support surface of the support table, and the release film separated from the pad can be discharged through a gap formed between the support table and the separating member.

[0027] The separating member can be positioned so that the blade faces the boundary between the pad and the release film.

[0028] The height of the end of the separating member may be at least higher than the height of the support surface of the support base.

[0029] The height difference between the end of the separating member and the support surface may be greater than at least the thickness of the release film.

[0030] The rollers may include an upper roller that presses an upper portion of the pad and rotates in one direction, and a lower roller that is provided below the upper roller, presses a lower portion of the pad, and rotates in a direction opposite to the rotation direction of the upper roller.

[0031] The support base may be disposed such that an end portion facing the roller faces the lower roller. [Effects of the Invention]

[0032] According to the present invention, the release film can be effectively removed from the pad to which the release film is attached, thereby improving process efficiency. [Brief explanation of the drawings]

[0033] [Figure 1] FIG. 1 is a perspective view of a conventional cell assembly. [Figure 2] FIG. 1 is a perspective view of a conventional film peeling device. [Figure 3] 3 is a schematic diagram showing an embodiment of the use of the film peeling device of FIG. 2. [Figure 4] 1 is a perspective view of a film peeling device according to a first embodiment of the present invention. [Figure 5] FIG. 2 is a perspective view of the film removing unit of the present invention. [Figure 6] 5 is a schematic diagram showing an embodiment of the use of the film peeling device of FIG. 4. [Figure 7] 5 is a schematic diagram showing another embodiment of the use of the film peeling device of FIG. 4. [Figure 8] 5 is a schematic diagram showing another embodiment of the use of the film peeling device of FIG. 4. [Figure 9] 5 is a schematic diagram showing another embodiment of the use of the film peeling device of FIG. 4. [Figure 10] FIG. 10 is a perspective view of a film removing unit included in a film peeling device according to a second embodiment of the present invention. [Figure 11] FIG. 10 is a perspective view of a film removing unit included in a film peeling device according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0034] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Before that, it should be noted that the terms and words used in the specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted as meanings and concepts that are consistent with the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concepts of the terms in order to best describe his / her own invention.

[0035] Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent the entire technical idea of ​​the present invention, and there may be various equivalents and modifications that can replace them at the time of this application.

[0036] Furthermore, in the description of the present invention, if it is determined that a specific description of related publicly known configurations or functions may obscure the gist of the present invention, the detailed description will be omitted.

[0037] The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art, and therefore the shapes and sizes of components in the drawings may be exaggerated, omitted, or shown schematically for clearer explanation. Therefore, the sizes and proportions of each component do not completely reflect the actual sizes and proportions.

[0038] The present invention relates to a film peeling device, and more specifically to a film peeling device that can effectively remove a release film from a pad having a release film attached to its surface.

[0039] 4 to 9 relate to a film peeling device according to a first embodiment of the present invention, and FIGS. 10 and 11 relate to film peeling devices according to second and third embodiments of the present invention, respectively.

[0040] Hereinafter, specific embodiments of the film peeling device of the present invention will be described in detail with reference to the accompanying drawings. For reference, the directions of front and back, up and down, left and right, and the like used in the following description to specify relative positions are intended to aid in understanding the invention, and unless otherwise specified, are based on the directions shown in the drawings.

[0041] (First embodiment) The film peeling device 1000 of the present invention removes the release film F from the pad P having the release film F attached to one surface thereof.

[0042] The pad P is interposed between the cells and acts as a buffer to protect the cells by partially absorbing external shocks.

[0043] The release film F serves to protect the surface of the pad P and is removed before applying the pad P to a cell.

[0044] FIG. 4 is a perspective view of a film peeling device 1000 according to a first embodiment of the present invention, and FIG. 5 is a perspective view of a film removing unit 200 according to the present invention.

[0045] As shown in FIG. 4, the film peeling device 1000 of the present invention includes a pair of rollers 100 and a film removing unit 200 disposed adjacent to the rollers 100.

[0046] The pad P passes between the rollers 100 so that the release film F that needs to be removed is located at the bottom.

[0047] The pair of rollers 100 simultaneously press the upper and lower portions of the pad P which is being transported in one direction.

[0048] The roller 100 includes an upper roller 100a that presses the upper portion of the pad P and rotates in one direction, and a lower roller 100b that rotates in the opposite direction to the rotation direction of the upper roller 100a.

[0049] Since the release film F is attached to the lower part of the pad P, the lower roller 100b is in direct contact with the release film F.

[0050] The film removing unit 200 is disposed adjacent to the roller 100 and removes the release film F from the pad P passing over the roller 100 .

[0051] The film removing unit 200 includes a support table 210 disposed adjacent to the roller 100, and a separating member 220 positioned at the rear end of the support table 210 with a predetermined distance therebetween.

[0052] Since the positions of the pads P discharged after passing through the rollers 100 may vary, it is necessary to stably support the lower portions of the pads P, which is performed by the support 210. That is, the support 210 serves to support the lower portions of the pads P that pass through the rollers 100 and are discharged.

[0053] The support table 210 is preferably disposed such that the end facing the roller 100 faces the lower roller 100b, in order to effectively remove only the release film F attached to the lower part of the pad P without interfering with the moving path of the pad P passing through the upper roller 100a and the lower roller 100b.

[0054] The support table 210 includes a support surface 211 on its upper side that supports the lower part of the pad P so as to guide the movement of the pad P.

[0055] The support surface 211 may be flat as shown in FIGS.

[0056] FIG. 6 is a schematic diagram showing an embodiment of the use of the film peeling device 1000 of FIG.

[0057] 6, the pad P maintains a horizontal position and moves while being supported on the support surface 211 of the support stand 210. At this time, the release film F is in direct contact with the support surface 211 at the bottom of the pad P.

[0058] The support table 210 maintains the height of the boundary between the release film F and the pad P constant based on the support surface 211 regardless of the thickness of the pad P.

[0059] The separating member 220 separates the release film F of the pad P supported by the supporter 210 at the rear end of the supporter 210 .

[0060] As shown in FIG. 5, the separating member 220 includes a blade 221 at the end facing the support base 210 .

[0061] The separating member 220 is positioned so that the blade 221 faces the boundary between the pad P and the release film F.

[0062] The blade 221 separates the release film F by splitting the boundary between the pad P supported on the support table 210 and the release film F. Therefore, it is preferable that the height of the end of the separating member 220, i.e., the blade 221, is at least higher than the height of the support surface 211 of the support table 210. In this case, if the height of the blade 221 is the same as or lower than the height of the support surface 211, the release film F attached to the lower part of the pad P may not come into contact with the blade 221 and may not be separated.

[0063] FIG. 7 is a schematic diagram showing another embodiment of the use of the film peeling device 1000 of FIG.

[0064] Referring to FIG. 7, the end of the separating member 220 is spaced apart from the support surface 211 of the support table 210 by a predetermined distance.

[0065] More specifically, the blade 221 of the separating member 220 is spaced a predetermined distance above the support table 210, and a gap is formed between the blade 221 and the support table 210. The pad P supported on the support surface 211 and transported toward the separating member 220 moves to the upper part of the separating member 220 with the release film F at the bottom removed by the blade 221. At this time, the release film F peeled off by the blade 221 passes through the gap between the support table 210 and the separating member 220 and is removed.

[0066] Therefore, in order for the release film F to be able to pass completely through the gap, the height difference between the end of the separating member 220, i.e., the blade 221, and the support surface 211 must be at least equal to or greater than the thickness of the release film F.

[0067] FIG. 8 is a schematic diagram showing another embodiment of the use of the film peeling device 1000 of FIG. 4, and FIG. 9 is a schematic diagram showing another embodiment of the use of the film peeling device 1000 of FIG.

[0068] 8 and 9 are spaced apart at the same intervals according to the same specifications, and the film removing units 200 are also disposed at the same positions. However, there is a difference in that the thickness of the pad P transported in FIG. 9 is thicker than the thickness of the pad P disclosed in FIG. 8.

[0069] However, referring to the dotted line indicating the height of the blade 221 of the separating member 220, the blade 221 used in each of the above examples is directed toward the boundary point between the pad P and the release film F. That is, Figures 8 and 9 show that as long as the distance and arrangement position between the support base 210 and the separating member 220 are the same, the release film F can be effectively removed in the same way even if the thickness of the pad P is different.

[0070] (Second embodiment) FIG. 10 is a perspective view of a film peeling device 1000 according to the second embodiment of the present invention.

[0071] The support table 210 has an inclined upper portion so that the height of the pad P moving on the support surface 211 increases. That is, the support table 210 is formed so that the support surface 211 is inclined.

[0072] 10, the support surface 211 is inclined upward by a predetermined angle θ with respect to an imaginary dotted line that is horizontal to the upper surface of the separating member 220. As shown in FIG.

[0073] Therefore, the pad P passing over the roller 100 rides on the inclination of the support surface 211 and slides upward.

[0074] The support base 210 having the above structure can contact the end of the pad P with a high probability and guide the movement of the pad P when the end of the pad P passing through the roller 100 is bent or curved in various directions.

[0075] (Third embodiment) FIG. 11 is a perspective view of a film peeling device 1000 according to a third embodiment of the present invention.

[0076] The upper portion of the support table 210 is inclined in a curved shape, that is, the support surface 211 of the support table 210 is formed in a curved shape.

[0077] Therefore, the pad P passing over the roller 100 slides upward along the slope of the curve of the support surface 211 .

[0078] The support base 210 having the above structure can contact the end of the pad P with a high probability and guide the movement of the pad P when the end of the pad P passing through the roller 100 is bent or curved in various directions.

[0079] The present invention has been described in more detail above with reference to the drawings and embodiments, etc. However, the configurations shown in the drawings or embodiments in this specification are merely one embodiment of the present invention and do not represent all of the technical ideas of the present invention, and therefore, at the time of filing this application, there may be various equivalents and modifications that can replace them. [Explanation of symbols]

[0080] 10: (Prior Art) Cell Assembly 11: (Prior Art) Cell 20: (Prior Art) Roller 30: (Prior Art) Separation member 1000: Film peeling device 100: Laura 100a: Upper roller 100b: Lower roller 200: Film removal unit 210: Support stand 211: Support surface 220: Separation member 221: Blade P: Pad F: Release film

Claims

1. A film peeling device for removing a release film from a pad having a release film attached to its lower portion, a pair of rollers that press the upper and lower portions of the pad; a film removing unit disposed adjacent to the roller and removing a release film from the pad passing through the roller; The film removing unit includes: a support base that supports a lower portion of the pad; a separating member that separates the release film of the pad supported by the support stand at a rear end of the support stand.

2. The film peeling device according to claim 1 , wherein the support table includes a support surface at an upper portion thereof that supports a lower portion of the pad so as to guide the movement of the pad.

3. The film peeling device according to claim 2 , wherein the support surface has a flat shape.

4. 3. The film peeling device according to claim 2, wherein the support table has an upper portion inclined so that the height of the pad that moves on the support surface increases.

5. The film peeling device according to claim 4 , wherein the upper portion of the support base is inclined in a curved shape.

6. The film peeling device according to claim 1 , wherein the separating member includes a blade at an end facing the support table.

7. 2. The film peeling device according to claim 1, wherein an end of the separating member is spaced a predetermined distance from the support surface of the support table, and the release film separated from the pad is discharged through a gap formed between the support table and the separating member.

8. The film peeling device according to claim 6 , wherein the separating member is positioned so that the blade faces the boundary between the pad and the release film.

9. The film peeling device according to claim 1 , wherein the height of the end of the separating member is at least higher than the height of the support surface of the support table.

10. The film peeling device according to claim 9 , wherein a height difference between the end of the separating member and the support surface is greater than at least a thickness of the release film.

11. The roller is an upper roller that presses the upper portion of the pad and rotates in one direction; The film peeling device according to claim 1 , further comprising: a lower roller provided below the upper roller, pressing the lower part of the pad, and rotating in a direction opposite to a rotation direction of the upper roller.

12. The film peeling device according to claim 11 , wherein the support base is disposed so that an end portion thereof facing the roller faces the lower roller.

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