Sheet folding platform

Abstract

The application discloses a sheet folding platform, which comprises a rack, a rectangular folding table, two pressing strips and two folding strips. The rectangular folding table is arranged on the rack and used for placing a sheet; the two pressing strips are oppositely arranged on two sides of the rectangular folding table and are higher than the rectangular folding table; the pressing strips can be horizontally moved above the rectangular folding table and then lowered to press on the surface of the rectangular folding table, so as to press the sheet; the two folding strips are arranged on the two sides of the rectangular folding table and below the pressing strips; the folding strips are closely combined with the side walls of the rectangular folding table, and the upper surfaces of the folding strips are arranged in a flush manner with the upper surface of the rectangular folding table; the folding strips can be vertically moved upwards to be higher than the rectangular folding table, horizontally moved above the rectangular folding table, then lowered and pressed on the surface of the rectangular folding table, so as to bend the edges of the sheet. The sheet folding platform can realize automatic folding of the sheet through the arrangement of the pressing strips and the folding strips, guarantee the consistency of sheet folding and avoid the error of manual folding.

Description

Technical Field

[0001] This invention belongs to the field of sheet processing technology, and specifically relates to a sheet folding platform. Background Technology

[0002] With the development of new energy vehicles, battery manufacturers are increasingly emphasizing the importance of insulation filling and tear strength in new energy battery products. In insulation design, thicker insulating films enhance puncture resistance, preventing internal short circuits caused by uneven electrode surfaces or burrs on electrode edges during manufacturing or use. Simultaneously, thicker insulating films maintain stability at high temperatures, preventing thermal runaway due to overcharging or overheating, thus improving overall battery safety and stability. Traditional insulating film production methods, typically involving manual folding and welding, are inefficient. Manual folding is prone to deviations, leading to inconsistent welding quality and insufficient tear strength, affecting battery life and safety. Besides insulating films, other sheet materials facing folding processes also encounter similar challenges.

[0003] Therefore, developing a folding device with a high degree of automation that can improve the stability of folding quality is of great practical significance.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a sheet folding platform that can automatically fold sheets by setting pressure strips and folding strips, ensuring the consistency of sheet folding and avoiding errors caused by manual folding.

[0006] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution: a sheet folding platform, comprising: a frame, a rectangular folding table, two pressure strips, and two folding strips. The rectangular folding table is disposed on the frame for placing the sheet; the two pressure strips are respectively disposed opposite each other on both sides of the rectangular folding table and are higher than the rectangular folding table; the pressure strips can move horizontally above the rectangular folding table and descend to press against the surface of the rectangular folding table, for pressing the sheet; the two folding strips are disposed on both sides of the rectangular folding table and below the pressure strips; the folding strips are tightly fitted with the sidewalls of the rectangular folding table, and the upper surface of the folding strips is flush with the upper surface of the rectangular folding table; the folding strips can move vertically upward above the rectangular folding table and then horizontally above the rectangular folding table, before descending and pressing against the surface of the rectangular folding table, for bending the edges of the sheet.

[0007] In one or more embodiments of the present invention, a clearance groove is provided on one side of the pressure strip; when the pressure strip is pressed onto the rectangular folding platform, the folding strip can be accommodated in the clearance groove.

[0008] In one or more embodiments of the present invention, the bottom of the clearance groove is recessed inward along its length to form a folded bottom wall, the length of the folded bottom wall being approximately equal to the length of the folded strip, and the folded strip being able to be pressed onto the folded bottom wall.

[0009] In one or more embodiments of the present invention, the thickness of the folded bottom wall is between 0.5 mm and 1 mm.

[0010] In one or more embodiments of the present invention, the folding strip is provided with a plurality of clearance through holes at intervals along its length on the side near the rectangular folding table, for the welding head to extend into and weld the folded sheet.

[0011] In one or more embodiments of the present invention, limit strips are sequentially and spaced apart on the surface of the rectangular folding platform along a direction perpendicular to the pressure strip on the other two sides of the rectangular folding platform.

[0012] In one or more embodiments of the present invention, a positioning post is provided on the surface of the rectangular folding table, and the positioning post is detachably connected to the rectangular folding table.

[0013] In one or more embodiments of the present invention, a first transverse cylinder is provided on both sides of the pressure bar on the side wall of the rectangular folding platform for driving the pressure bar to move in the horizontal direction; a first longitudinal cylinder is provided below the pressure bar for driving the pressure bar to move up and down.

[0014] In one or more embodiments of the present invention, a mating plate is provided below the folding strip, and a second transverse cylinder is provided on the mating plate for driving the folding strip to move in the horizontal direction; a second longitudinal cylinder is provided below the mating plate for driving the mating plate and the folding strip to move up and down.

[0015] In one or more embodiments of the present invention, the sidewalls and mating plates of the rectangular folding table are provided with a plurality of guide rails; both the folding strip and the pressing strip are provided with guide members, the guide members are slidably disposed on the guide rails, and the guide rails cooperate with the guide members to limit the movement direction of the folding strip and the pressing strip.

[0016] Compared with existing technologies, the sheet folding platform of the present invention can achieve automatic folding of sheets through the setting of pressure strips and folding strips. The pressure strips are provided with clearance grooves and folding bottom walls, which work in conjunction with the folding strips to prevent sheet displacement or folding deviation during the folding process, ensuring more complete folding and guaranteeing folding consistency. The sheet folding platform is equipped with limit strips and positioning posts to further ensure that the sheet position on the rectangular folding platform remains consistent, further improving folding consistency and guaranteeing the yield rate of automated production. In addition, the folding strips are also provided with clearance through holes to avoid the influence of welding on the sheet folding process, thereby ensuring the consistency of subsequent welding processes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of one embodiment of the present invention;

[0019] Figure 2 This is a perspective view of a rectangular folding table, pressure strip, and folding strip on which a sheet is placed, according to an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of a rectangular folding platform, a pressure strip, and a folding strip in one embodiment of the present invention;

[0021] Figure 4 This is a first structural diagram of a rectangular folding table in one embodiment of the present invention;

[0022] Figure 5 This is a second structural diagram of a rectangular folding platform according to an embodiment of the present invention.

[0023] Explanation of key figure labels:

[0024] 1-Frame, 2-Rectangular folding table, 21-Limiting strip, 3-Pressure strip, 31-Allowing groove, 311-Folding bottom wall, 32-First transverse cylinder, 33-First longitudinal cylinder, 4-Folding strip, 41-Allowing through hole, 42-Matching plate, 43-Second transverse cylinder, 44-Second longitudinal cylinder, 5-Positioning post, 6-Guide rail, 7-Guide component, 8-Sheet. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0026] like Figure 1-5 As shown, a sheet folding platform according to one embodiment of the present invention includes a frame 1, a rectangular folding table 2, two pressure strips 3, and two folding strips 4. The rectangular folding table 2 is disposed on the frame 1 for placing a sheet 8. The two pressure strips 3 are respectively disposed opposite to each other on both sides of the rectangular folding table 2 and are higher than the rectangular folding table 2. The pressure strips 3 can move horizontally to above the rectangular folding table 2 and descend to press against the surface of the rectangular folding table 2 to press the sheet 8. The two folding strips 4 are also disposed on both sides of the rectangular folding table 2 and below the pressure strips 3. The folding strips 4 are tightly fitted with the sidewalls of the rectangular folding table 2, and the upper surface of the folding strips 4 is flush with the upper surface of the rectangular folding table 2. The folding strips 4 can move vertically upward above the rectangular folding table 2 and then move horizontally to above the rectangular folding table 2, and then descend to press against the surface of the rectangular folding table 2 to bend the edges of the sheet 8.

[0027] In the above embodiment, after the sheet 8 is placed on the rectangular folding table 2, both ends of the sheet 8 extend beyond the rectangular folding table 2. The pressure strip 3 moves from both sides of the rectangular folding table 2 to above it, with its edge aligned with the edge of the rectangular folding table 2, and moves downwards to press onto the sheet 8. Next, the folding strip 4 moves upwards against the side wall of the rectangular folding table 2, folding the portion of the sheet 8 extending beyond the rectangular folding table 2 upwards. Once the lower surface of the folding strip 4 is higher than the upper surface of the rectangular folding table 2, the folding strip 4 moves horizontally towards the pressure strip 3, causing the sheet 8 to continue folding closer to the pressure strip 3. After the sheet 8 is folded at a certain angle, the pressure strip 3 retracts away from the folding strip 4, and the folding strip 4 continues to move horizontally until the edge of the sheet 8 is folded approximately 180°. Then, the folding strip 4 presses downwards onto the upper surface of the rectangular folding table 2, completing the folding of the sheet 8.

[0028] The sheet folding platform can automatically fold the sheet 8 by setting the pressure strip 3 and folding strip 4, ensuring the consistency of sheet 8 folding and avoiding errors caused by manual folding.

[0029] In one implementation, such as Figure 2 and 3As shown, a clearance groove 31 is provided on one side of the pressure strip 3. When the pressure strip 3 is pressed onto the rectangular folding table 2, the folding strip 4 can be accommodated within the clearance groove 31. Specifically, during the folding process of the sheet 8, the folding strip 4 first moves upward, causing the edge of the sheet 8 to fold upward and the lower surface of the folding strip 4 to be higher than the upper surface of the rectangular folding table 2; then, the folding strip 4 moves horizontally, causing the edge of the sheet 8 to continue bending until the edge of the sheet 8 is folded to approximately 180°. Next, the folding strip 4 moves downward into the clearance groove 31 and presses the edge of the sheet 8 onto the pressure strip 3. Then, the pressure strip 3 retracts and disengages from the folding strip 4, and the folding strip 4 moves downward again to completely press the edge of the sheet 8 onto the rectangular folding table 2, awaiting welding. After welding is completed, the folding strip 4 and the pressure strip 3 return to their initial positions to await the next folding operation.

[0030] Furthermore, the bottom of the clearance groove 31 is recessed inward along its length to form a folded bottom wall 311. The length of the folded bottom wall 311 is approximately equal to the length of the folding strip 4, allowing the folding strip 4 to be pressed onto the folded bottom wall 311. Preferably, the thickness of the folded bottom wall 311 is between 0.5mm and 1mm. Specifically, during the folding process of the sheet 8, the folding strip 4 folds the edge of the sheet 8 along the edge of the folded bottom wall 311. By controlling the thickness of the folded bottom wall 311, excess bending of the sheet 8 at the folding point can be avoided. At the same time, because the folded bottom wall 311 is relatively thin, when the folding strip 4 is pressed onto the folded bottom wall 311, it will be closer to the surface of the rectangular folding table 2, and the sheet 8 will be approximately fully folded. When the pressing strip 3 retracts from the folding strip 4 and disengages from the folding strip 4, the change or shift in the folding position and degree of folding of the sheet 8 is smaller. After the folding strip 4 is pressed down, the folded position of the sheet 8 remains almost unchanged, thus ensuring consistency between each folding of the sheet 8.

[0031] The lifting and movement of the pressure strip 3 and the folding mechanism can be controlled by a cylinder. For example, as Figure 4 and 5 As shown, a first transverse cylinder 32 is provided on both sides of the pressure strip 3 on the side wall of the rectangular folding table 2, for driving the pressure strip 3 to move horizontally. A first longitudinal cylinder 33 is provided below the pressure strip 3 for driving the pressure strip 3 to move vertically. It can be understood that corresponding mating components can also be provided between the pressure strip 3 and the cylinder to realize the connection and working cooperation between the pressure strip 3 and the cylinder. These driving components can use cylinder driving components known in the art, which will not be described in detail here.

[0032] A mating plate 42 is provided below the folding strip 4. A second transverse cylinder 43 is provided on the mating plate 42 for driving the folding strip 4 to move horizontally. A second longitudinal cylinder 44 is provided below the mating plate 42 for driving the mating plate 42 and the folding strip 4 to move vertically. It can be understood that corresponding mating components can also be provided between the folding strip 4 and the cylinder to realize the connection and working cooperation between the folding strip 4 and the cylinder.

[0033] Furthermore, multiple guide rails 6 are provided on the side walls and mating plate 42 of the rectangular folding table 2. Guide members 7 are provided on both the folding strip 4 and the pressure strip 3, and the guide members 7 are slidably mounted on the guide rails 6. The guide rails 6 and guide members 7 cooperate to limit the movement direction of the folding strip 4 and the pressure strip 3. It can be understood that the orientation of the guide rails 6 on the side walls and mating plate 42 of the rectangular folding table 2 is set according to the movement direction of the folding strip 4 and the pressure strip 3 to ensure that the movement direction of the folding strip 4 and the pressure strip 3 does not deviate, thereby ensuring the accuracy and consistency of the sheet 8 folding.

[0034] In one implementation, such as Figure 3 As shown, the folding strip 4 has a plurality of clearance through holes 41 spaced apart along its length on the side near the rectangular folding table 2, which are used for the welding head to extend into and weld the folded sheet 8. The clearance through holes 41 allow the folding strip 4 to remain stationary during welding, preventing the folded part of the sheet 8 from warping and thus avoiding any impact on the welding process.

[0035] In one embodiment, multiple limiting strips 21 are sequentially and spaced apart on the surface of the rectangular folding table 2 along a direction perpendicular to the pressure strip 3 on the other two sides of the rectangular folding table 2. The limiting strips 21 can abut against the edges of the sheet 8 placed on the rectangular folding table 2 that do not need to be folded, thereby ensuring that the position of the sheet 8 remains consistent each time it is placed.

[0036] Furthermore, positioning posts 5 are provided on the surface of the rectangular folding table 2. The positioning posts 5 can cooperate with the sheet 8 having openings, further restricting the position of the sheet 8 on the rectangular folding table 2. Preferably, the positioning posts 5 are detachably connected to the rectangular folding table 2 to accommodate sheets 8 of different sizes. The positioning posts 5 are selectively installed depending on whether the sheet 8 has openings.

[0037] In summary, the sheet folding platform of the present invention can automatically fold the sheet 8 by setting the pressure strip 3 and the folding strip 4. The pressure strip 3 is provided with a clearance groove 31 and a folding bottom, which can work with the folding strip 4 to prevent the sheet 8 from shifting or deviating during the folding process, and to make the sheet 8 fold more fully, thus ensuring the consistency of folding. The sheet folding platform is provided with a limit strip 21 and a positioning post 5, which can further ensure that the position of the sheet 8 on the rectangular folding table 2 remains consistent, further improving the consistency of folding and ensuring the yield rate of automated production. In addition, the folding strip 4 is also provided with a clearance through hole 41, which avoids the influence of welding on the folding process of the sheet 8, thereby ensuring the consistency of the subsequent welding process.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sheet folding platform, characterized in that, include: frame; A rectangular folding table, mounted on the frame, is used to place sheets; Two pressure strips are respectively positioned opposite each other on both sides of the rectangular folding table and are higher than the rectangular folding table; The pressure strip can move horizontally above the rectangular folding table and descend to press against the surface of the rectangular folding table, for pressing against the sheet material; and Two folding strips are disposed on both sides of the rectangular folding platform and below the pressure strip; the folding strips are tightly fitted to the side walls of the rectangular folding platform, and the upper surface of the folding strips is flush with the upper surface of the rectangular folding platform; the folding strips can move vertically upward above the rectangular folding platform and horizontally above the rectangular folding platform, then descend and press against the surface of the rectangular folding platform, for bending the edge of the sheet material; wherein, a mating plate is disposed below the folding strip, and a second transverse cylinder is disposed on the mating plate for driving the folding strip to move horizontally; a second longitudinal cylinder is disposed below the mating plate for driving the mating plate and the folding strip to move vertically; multiple guide rails are disposed on the side walls of the rectangular folding platform and the mating plate; guide members are disposed on both the folding strips and the pressure strip, and the guide members are slidably disposed on the guide rails, and the guide rails cooperate with the guide members to limit the movement direction of the folding strips and the pressure strip.

2. The sheet folding platform according to claim 1, characterized in that, A clearance groove is provided on one side of the pressure strip; when the pressure strip is pressed onto the rectangular folding platform, the folding strip can be accommodated in the clearance groove.

3. The sheet folding platform according to claim 2, characterized in that, The bottom of the clearance groove is recessed inward along its length to form a folded bottom wall. The length of the folded bottom wall is approximately equal to the length of the folded strip, and the folded strip can be pressed onto the folded bottom wall.

4. The sheet folding platform according to claim 3, characterized in that, The thickness of the folded bottom wall is between 0.5mm and 1mm.

5. The sheet folding platform according to claim 1, characterized in that, The folding strip has multiple clearance holes spaced at intervals along its length on the side closest to the rectangular folding table, for the welding head to extend into and weld the folded sheet.

6. The sheet folding platform according to claim 1, characterized in that, Limiting strips are sequentially and spaced apart on the surface of the rectangular folding platform along a direction perpendicular to the pressure strip on both sides.

7. The sheet folding platform according to claim 1, characterized in that, The rectangular folding platform is provided with positioning posts on its surface, and the positioning posts are detachably connected to the rectangular folding platform.

8. The sheet folding platform according to claim 1, characterized in that, Both sides of the pressure bar are provided with a first transverse cylinder on the side wall of the rectangular folding table, which is used to drive the pressure bar to move in the horizontal direction; A first longitudinal cylinder is provided below the pressure bar to drive the pressure bar to move up and down.

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