A tape-adhesive folding device for double-folding insulating paper

Abstract

The present invention discloses a double-folded tape pasting folding device for insulating paper in the field of motor processing technology, including a vertical folding assembly, a fitting and a bending folding assembly arranged in sequence in the horizontal conveying direction of the insulating paper: wherein the vertical folding assembly is used to fold the side of the insulating paper vertically downward to form a right-angled edge on the side of the insulating paper; the fitting is used to fit the tape to the surface of the right-angled edge of the insulating paper; the bending folding assembly is arranged on both sides of the insulating paper, and is used to fold the right-angled edge of the insulating paper after the fitting is pasted with the tape vertically upward according to the folding mark generated by the folding action of the vertical folding assembly. The present invention can avoid the deviation of the tape during the bending process of the first-pasted tape, and the complex step of cutting in the subsequent process is required, and can avoid the tape pasting error caused by the change of the surface tension of the paper during the cutting process of the insulating paper.

Description

Technical Field

[0001] The invention relates to the technical field of insulating paper processing, and in particular to a tape pasting and folding device for double-folding insulating paper. Background Art

[0002] Insulation paper is widely used in stator cores due to its excellent insulation ability and mechanical properties to improve the insulation performance between the winding and the slot bottom of the stator core. During the installation of the insulation paper, the insulation paper is prone to slip along the length of the slot bottom. In order to prevent the insulation paper from sliding along the length of the slot bottom, it is often necessary to fold the two sides of the insulation paper so that the folded edges can be fastened to the two ends of the slot bottom from both sides. Since the two ends of the slot bottom of the stator core are relatively sharp, it is easy to cause the fold marks of the insulation paper to be worn by the slot bottom. It is often necessary to stick insulating tape or other reinforcing parts on the folded parts of the insulation paper.

[0003] For example, a double-folded insulating paper adhesive tape folding device with publication number CN110015587A drives the upper and lower pressure rollers to rotate and roll the insulating paper and discharge the insulating paper, and then folds it through the folding mechanism. Although this method can quickly stick the tape, it lacks the control of the edge of the tape. In application, the insulation paper is conveyed, the adhesive tape is adhered, and the subsequent overall cutting or edge cutting of the insulating paper will cause the tension of the insulating paper to change. In particular, there is a position difference between the edge of the insulating paper and the overall conveying part of the insulating paper after the tape is pasted. The roller conveying method cannot limit the edge during the edge folding process, causing the edge to deviate when it is attached to the tape, resulting in a position error at the attachment part of the tape and the edge of the insulating paper, resulting in the need to trim the edge of the insulating paper later; at the same time, the thickness of the edge of the insulating paper is increased after the tape is attached, and the folding of the insulating paper after the tape is attached will obviously cause the tape to deviate due to stress changes. Summary of the invention

[0004] The object of the present invention is to provide a double-folded insulating paper adhesive tape folding device to solve the technical problem of transformer stator insulating paper adhesive tape in the prior art.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A double-folded tape-adhesive folding device for insulating paper comprises a vertical folding assembly, a fitting and a bending folding assembly arranged in sequence along a conveying direction, wherein the vertical folding assemblies are arranged on both sides of the conveying direction of the insulating paper, and the side edges of the insulating paper are folded vertically downward to form right-angled edges on the side edges of the insulating paper. After the vertical folding is completed, the insulating paper is sent to the fitting to paste the tape on the right-angled edges, and the bending folding assembly folds the right-angled edges after the tape is pasted vertically upward according to the creases generated by the folding action;

[0007] in:

[0008] The vertical folding assembly includes a guide and a shaping member, wherein the shaping member is connected to the rear of the guide, the guide guides the side of the insulating paper to be folded vertically downward, and the shaping member shapes the side of the insulating paper in the vertically downward folded state after being guided by the guide into a right-angled side;

[0009] The fitting part comprises a cone-angle guide and a rubber sandwich part installed on the top of the cone-angle guide, the rubber sandwich part is provided with an opening for the tape to pass through, a right-angle clamping plate is installed at the end of the cone-angle guide away from the rubber sandwich part, and the cone-angle guide and the right-angle clamping plate have a smooth transition;

[0010] The bending and folding assembly includes a guide seat arranged at the end of the bonding member, and a guide slope is arranged on the upper surface of the guide seat. The guide slope is used to guide the right-angle edge of the insulating paper after the tape is bonded to be folded vertically upward according to the folding mark generated by the folding action of the vertical folding assembly.

[0011] Further, the guide member includes a seat body, and a surface of the seat body facing the side of the insulating paper is provided with an arc-shaped guide groove along the length direction of the seat body, and the central angle of the arc-shaped guide groove in the conveying direction of the insulating paper gradually decreases;

[0012] The seat body is provided with a matching swing roller, which contacts the lower surface of the insulating paper in the arc-shaped guide groove and is used for leveling the lower surface of the insulating paper.

[0013] Further, the matching swing roller includes a height adjustment screw and a shaft rotatably mounted on the top of the height adjustment screw and perpendicular to the height adjustment screw, and the shaft is connected to the height adjustment screw through a torsion spring, and a roller body is rotatably mounted on the shaft;

[0014] Wherein, the roller body and the conveying direction of the insulating paper form an acute angle.

[0015] Furthermore, the shaping member includes a first right-angle member and a first right-angle groove formed by the first right-angle member, a first rolling wheel group is arranged on the vertical side wall of the first right-angle groove, and the distance between the first rolling wheel group and the horizontal side wall of the first right-angle groove is less than or equal to the thickness of the insulating paper, and the rolling wheel radius of the first rolling wheel group is greater than the preset folding height of the insulating paper.

[0016] Furthermore, the cross section of the tapered guide is in a "V" shape, and the corner of the tapered guide is directly opposite to the corner of the right-angle side of the insulating paper.

[0017] Furthermore, the corner of the tapered guide piece contacts the middle of the upper surface of the tape passing through the opening, and the tape is guided to the right-angle clamp through the corner of the tapered guide piece, and the right-angle clamp makes the tape contact and fit with the surface of the right-angle edge of the insulating paper after being folded by the vertical folding assembly.

[0018] Furthermore, a right-angle pad is provided on the back side of the insulating paper located at the right-angle clamp, and the right-angle pad extends to the output end of the insulating paper of the vertical folding assembly;

[0019] The corner of the tapered guide is used to make a notch in the middle of the tape and to form a convex edge on the surface where the tape and the insulating paper are bonded. The corner of the tapered guide at the connection between the tapered guide and the right-angle clamp is pre-aligned with the corner of the right-angle side of the insulating paper.

[0020] Furthermore, a second right-angle piece is provided at the end of the guide seat, a second right-angle groove is provided on the second right-angle piece, a second rolling wheel group is provided on the horizontal side wall of the second right-angle groove, and the distance between the second rolling wheel group and the horizontal side wall of the second right-angle groove is less than the thickness of the insulating paper plus tape, and the rolling wheel radius of the second rolling wheel group is greater than the height of the right-angle side of the insulating paper.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention realizes folding the side of the insulating paper by folding twice in sequence in the process, and performs the laminating of the tape during the two folding processes, thereby avoiding the deviation of the tape during the bending process of the first laminating tape, and requiring the complex step of cutting in the subsequent process. In the process, the step of controlling the laminating of the edge of the tape is overcome, thereby avoiding the operation of excessive cutting of the insulating paper, which causes the surface tension of the paper to change and cause the laminating error of the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] Figure 1 A structural schematic diagram of a tape pasting and folding device is provided for an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a longitudinal section of a shaping member is provided for an embodiment of the present invention;

[0026] Figure 3 A schematic structural diagram of a longitudinal section of a tapered guide member is provided for an embodiment of the present invention.

[0027] The numbers in the figure represent the following:

[0028] 1-vertical folding assembly; 2-fitting part; 3-bending folding assembly; 4-limiting slot; 5-right angle edge; 6-guide; 7-forming part; 8-matching swing roller; 9-tape; 10-insulating paper;

[0029] 201-cone angle guide; 202-rubber clamp; 203-opening; 204-right angle clamp; 205-right angle pad; 206-convex edge;

[0030] 301-guide seat; 302-guide slope; 303-second right-angle piece; 304-second right-angle groove; 305-second rolling wheel set;

[0031] 601-seat body; 602-arc guide groove;

[0032] 701-first right angle piece; 702-first right angle groove; 703-first rolling wheel set;

[0033] 801-height adjustment screw; 802-shaft rod; 803-roller body. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 3 As shown, the present invention provides a tape pasting and folding device for double folding of insulating paper, including a vertical folding component 1, a pasting component 2 and a bending and folding component 3 which are sequentially arranged in the horizontal conveying direction of the insulating paper.

[0036] The vertical folding components 1 are arranged on both sides of the insulating paper, and are used to fold the side edges of the insulating paper vertically downward to form right-angle edges 5 on the side edges of the insulating paper;

[0037] The bonding member 2 is arranged on the side of the insulating paper between the vertical folding component 1 and the bending folding component 3, and is used to bond the adhesive tape to the surface of the right-angle edge 5 of the insulating paper;

[0038] The bending and folding components 3 are arranged on both sides of the insulating paper, and are used to fold the right-angled edges 5 of the insulating paper vertically upward according to the folding marks generated by the folding action of the vertical folding components 1 after the bonding piece 2 is bonded with the tape.

[0039] The present invention realizes folding of the side of the insulating paper by folding twice in different directions through the vertical folding component 1 and the bending folding component 3, forming a folding mode of the right-angle side of the insulating paper, and laminating the tape through the laminating component 2 during the two folding processes. Since the tape of the existing insulating paper is pre-laminated during the transportation process and then folded, the tape is easily offset during the folding process due to the increase in the thickness of the edge of the insulating paper and the influence of the height difference between the edge of the tape and the insulating paper. The present invention constructs a fold in advance through the first vertical folding edge, and then glues the right-angle side. The folded part has been determined in a bent state, so that the tape that is first laminating can be avoided from being offset during the bending process, and the complex step of cutting is required in the subsequent process. The tape laminating error caused by the change of the surface tension of the paper during the cutting process of the insulating paper can be avoided.

[0040] At the same time, the vertical folding component 1 and the bending folding component 3 must apply a certain degree of clamping pressure to the side of the insulating paper when folding it. Then, the side tension of the insulating paper between the two is stable and will not be affected by the overall conveying state. Constructing the bonding part 2 therein can ensure the accuracy and stability of the tape bonding process.

[0041] The vertical hemming assembly 1 of the present invention comprises a guide member 6 and a shaping member 7 , wherein the shaping member 7 is connected to the rear of the guide member 6 .

[0042] The guide member 6 is used to guide the side of the insulating paper to be folded vertically downward.

[0043] The shaping member 7 is used to shape the right-angled edge 5 of the side edge of the insulating paper in a folded state vertically downward after being guided by the guide member 6 .

[0044] Furthermore, the guide member 6 includes a seat body 601, and the surface of the seat body 601 facing the side of the insulating paper is provided with an arc guide groove 602 along the length direction of the seat body 601, and the central angle of the arc guide groove 602 in the conveying direction of the insulating paper gradually decreases, and its purpose is to complete the initial bending of the side of the insulating paper and guide the side to a vertical downward folding state.

[0045] Furthermore, in the process of bending downward, if the upper surface of the insulating paper is to contact the arc guide groove 602, it cannot be satisfied by the insulating paper conveying mechanism as a whole. Due to the gravity distribution of the insulating paper itself, the upper surface of the side of the insulating paper cannot fit tightly with the arc guide groove 602, and the gravity distribution will make it difficult for the insulating paper to be sufficiently flat at the side. Therefore, during the folding state guidance process, there is a possibility of a large error in the folding result.

[0046] To this end, a matching swing roller 8 is provided on the seat body 601, and the matching swing roller 8 contacts the lower surface of the insulating paper located in the arc guide groove 602, and is used to support and level the lower surface of the insulating paper. Its purpose is to clamp the insulating paper entering the arc guide groove 602 through the arc guide groove 602 and the matching swing roller 8, and form a side entry channel for the insulating paper between the upper surface of the arc guide groove 602 and the matching swing roller 8.

[0047] The cooperating swing roller 8 includes a height adjustment screw 801 and a shaft 802 rotatably mounted on the top of the height adjustment screw 801 and perpendicular to the height adjustment screw 801 , and the shaft 802 is connected to the height adjustment screw 801 through a torsion spring, and a roller body 803 is rotatably mounted on the shaft 802 .

[0048] Among them, the roller body 803 forms an acute angle with the conveying direction of the insulating paper. The roller body 803 contacts the surface of the insulating paper under the conveyance of the insulating paper conveying assembly and then adaptively rotates. When the paper surface of the insulating paper fluctuates (cutting and tape bonding process), it can be guided by the roller body 803 to prevent the fluctuating state from entering the arc guide groove 602.

[0049] The shaping member 7 includes a first right-angle member 701 and a first right-angle groove 702 formed by the first right-angle member 701, a first rolling wheel group 703 is arranged on the vertical side wall of the first right-angle groove 702, and the distance between the first rolling wheel group 703 and the horizontal side wall of the first right-angle groove 702 is less than or equal to the thickness of the insulating paper, and the rolling wheel radius of the first rolling wheel group 703 is greater than the preset folding height of the insulating paper.

[0050] The fitting part 2 includes a conical guide 201 and a rubber sandwich 202 installed on the top of the conical guide 201. The rubber sandwich 202 is provided with an opening 203 for the tape to pass through. A right-angle clamp 204 is installed at the end of the conical guide 201 away from the rubber sandwich 202, and the conical guide 201 and the right-angle clamp 204 have a smooth transition.

[0051] The cross section of the tapered guide 201 is in a "V" shape, and the corner of the tapered guide 201 is directly opposite to the corner of the right-angle side 5 of the insulating paper.

[0052] The corner of the tapered guide 201 contacts the middle of the upper surface of the tape passing through the opening 203, and the tape is guided by the corner of the tapered guide 201 to the right-angle clamp 204, and the right-angle clamp 204 makes the tape contact and fit with the surface of the right-angle edge of the insulating paper folded by the vertical folding assembly 1.

[0053] A right-angle pad 205 is provided on the back side of the insulating paper located at the right-angle clamping plate 204 , and the right-angle pad 205 extends to the output end of the insulating paper of the vertical folding assembly 1 .

[0054] The corner of the tapered guide 201 in the present invention is used to make a notch in the middle of the tape and form a convex edge 206 on the surface where the tape and the insulating paper are bonded. The corner of the tapered guide 201 at the connection between the tapered guide 201 and the right-angle clamp 204 is pre-aligned with the convex edge 206 and the corner of the right-angle side 5 of the insulating paper.

[0055] The bending folding component 3 in the present invention has essentially the same functional structure as the vertical folding component 1, except that the folding action on the side of the insulating paper is opposite. Those skilled in the art only need to change the overall installation position based on the vertical folding component 1.

[0056] The vertical folding assembly 1 performs the initial folding of the side edge of the insulating paper, while the bending folding assembly 3 needs to be folded after the superimposed tape, and after the vertical folding assembly 1 has formed a crease of the right-angled edge, it is relatively easy to fold it again. Therefore, the bending folding assembly 3 includes a guide seat 301 arranged at the end of the bonding member 2, and a guide slope 302 is arranged on the upper surface of the guide seat 301. The guide slope 302 is used to guide the right-angled edge 5 of the insulating paper after the tape is bonded to be folded vertically upward according to the crease generated by the folding action of the vertical folding assembly 1.

[0057] The end of the guide seat 301 is provided with a second right-angle piece 303, and the second right-angle piece 303 is provided with a second right-angle groove 304, wherein the connection process of the side of the insulating paper after the second right-angle groove 304 and the guide slope 302 are guided (that is, after the insulating paper is guided from the folded state downward to the folded state upward) is to not affect the horizontal conveying state of the insulating paper as a whole, that is, the conveying state of the insulating paper between the second bracket groove 304 and the guide slope needs to be "smoothly transitioned", and the horizontal side wall of the second right-angle groove 304 is provided with a second rolling wheel group 305, wherein the second rolling wheel group 305 is connected through the bracket The structure is connected to the second right-angle groove 305, and the distance between the second rolling wheel set 305 and the horizontal side wall of the second right-angle groove 304 is less than the thickness of the insulating paper plus the tape, and the rolling wheel radius of the second rolling wheel set 305 is greater than the height of the right-angle side 5 of the insulating paper, that is, between the wheel surface of the second rolling wheel set 305 and the horizontal plane of the second right-angle groove 304 (the horizontal part of the edge of the insulating paper enters from the radial direction of the second rolling wheel set 305), and between the circumferential surface of the second rolling wheel set 305 and the vertical plane of the second right-angle groove 304 (the vertical width part of the folded part of the insulating paper), a channel for the edge of the insulating paper to pass through is formed.

[0058] To further illustrate, on the longitudinal section of the entire insulating paper, the first right-angle slot 702 and the second right-angle slot 304 are superimposed and constructed into a quadrant, and the first right-angle slot 702 is located in the fourth quadrant, while the second right-angle slot 304 is located in the first quadrant, and the corners of the first right-angle slot 702 and the second right-angle slot 304 are both located at the quadrant origin.

[0059] In this way, the wheel surface of the second rolling wheel set 305 contacts the horizontal part of the insulating paper, and also plays a role in pressing the horizontal surface of the edge of the insulating paper. The circumferential surface of the second rolling wheel set 305 contacts the right-angled side (vertical part) of the insulating paper to play a shaping and clamping role for the right-angled side, wherein the height of the second rolling wheel set 305 can be the same as the height of the right-angled side (vertical part) of the insulating paper.

[0060] If the right-angled edge (vertical portion) of the insulating paper needs to be cut, it can be done during the shaping and guiding process of the second rolling wheel set 305 .

[0061] Furthermore, in order to limit the edge width of the insulating paper entering the arc guide groove 602, the arc guide groove 602 is used to adaptively bend and fold the edge of the insulating paper (that is, when the insulating paper is transported in the overlapping direction, the edge of the insulating paper and the arc guide groove 602 are bent in contact with each other), which requires that when the insulating paper is transported horizontally, the upper surface of the insulating paper is tangent to the top curvature of the arc guide groove 602. In theory, the arc guide groove 602 can be used to bend and guide the folding of the side of the insulating paper to limit the height of the side of the insulating paper. However, in order to avoid the insulating paper The folding width error caused by the change in tension during the conveying process is limited by limiting the lower limit height of the insulating paper entering the arc guide groove 602, that is, ensuring that the final folding height of the side of the insulating paper is always consistent. The bottom of the arc guide groove 602 is provided with a limit groove body 4 along the length direction of the arc guide groove 602, and the edge of the insulating paper extends into the limit groove body 4 along the arc direction of the arc guide groove 602, wherein the limit groove body 4 is a strip structure with a right-angled longitudinal section. Of course, in the present invention, it can be simply thought of changing the folding height of the edge of the insulating paper by adjusting the height of the limit groove body 4. The present invention does not explain too much about the height adjustment method and the connection method of the limit groove body 4 with the arc guide groove 602.

[0062] It is further explained that the present invention Figure 1 Only the edge portion of one side of the insulating paper 10 is described in the vertical folding component 1, the fitting part 2 and the bending folding component 3, and no overall conveying mechanism is provided, including the representation of the right-angle edge 5 at the vertical folding component 1 and the bending folding component 3, wherein the tape 9 enters from the opening 203 of the adhesive sandwich component 202.

[0063] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A double-folding tape folding device for insulating paper, characterized in that: The invention comprises a vertical folding component (1), a fitting (2) and a bending folding component (3) which are arranged in sequence along a conveying direction, wherein the vertical folding component (1) is arranged on both sides of the conveying direction of the insulating paper, and folds the side edges of the insulating paper vertically downward to form right-angled edges on the side edges of the insulating paper; after the vertical folding is completed, the insulating paper is sent to the fitting (2) to paste a tape on the right-angled edge (5); and the bending folding component (3) folds the right-angled edge (5) after the tape is pasted vertically upward according to the creases generated by the folding action; in: The vertical folding component (1) comprises a guide (6) and a shaping member (7), wherein the shaping member (7) is connected to the rear of the guide (6), the guide (6) guides the side edge of the insulating paper to be folded vertically downward, and the shaping member (7) shapes the right-angle edge (5) of the side edge of the insulating paper in the folded vertically downward state after being guided by the guide (6); The fitting member (2) comprises a cone-angle guide member (201) and a rubber sandwich member (202) mounted on the top of the cone-angle guide member (201); the rubber sandwich member (202) is provided with an opening (203) for the tape to pass through; a right-angle clamping plate (204) is mounted on the end of the cone-angle guide member (201) away from the rubber sandwich member (202); and the cone-angle guide member (201) and the right-angle clamping plate (204) are smoothly transitioned; The bending and folding component (3) comprises a guide seat (301) arranged at the end of the laminating member (2), and a guide slope (302) is arranged on the upper surface of the guide seat (301), and the guide slope (302) is used to guide the right-angle edge (5) of the insulating paper after laminating with the tape to be folded vertically upward according to the folding line generated by the folding action of the vertical folding component (1); The cross section of the tapered guide (201) is in a "V" shape, and the corner of the tapered guide (201) faces the corner of the right-angle side (5) of the insulating paper; The corner of the tapered guide (201) contacts the middle of the upper surface of the adhesive tape passing through the opening (203), and the adhesive tape is guided to the right-angle clamp (204) through the corner of the tapered guide (201), and the right-angle clamp (204) makes the adhesive tape contact and fit with the surface of the right-angle edge of the insulating paper folded by the vertical folding component (1); A right-angle pad (205) is provided on the back side of the insulating paper located at the right-angle clamp (204), and the right-angle pad (205) extends to the output end of the insulating paper of the vertical folding assembly (1); The corner of the tapered guide (201) is used to make a notch in the middle of the tape and to form a convex edge (206) on the surface where the tape is bonded to the insulating paper. The corner of the tapered guide (201) at the connection between the tapered guide (201) and the right-angle clamp (204) is pre-aligned with the convex edge (206) and the corner of the right-angle side (5) of the insulating paper.

2. The device for double-folding insulating paper with adhesive tape according to claim 1, characterized in that: The guide member (6) comprises a seat body (601), and a surface of the seat body (601) facing the side of the insulating paper is provided with an arc-shaped guide groove (602) along the length direction of the seat body (601), and the central angle of the arc-shaped guide groove (602) in the conveying direction of the insulating paper gradually decreases; A matching swing roller (8) is provided on the seat body (601), and the matching swing roller (8) is in contact with the lower surface of the insulating paper located in the arc-shaped guide groove (602) and is used to level the lower surface of the insulating paper.

3. The device for double-folding insulating paper with adhesive tape according to claim 2, characterized in that: The matching swing roller (8) comprises a height adjustment screw (801) and a shaft (802) rotatably mounted on the top of the height adjustment screw (801) and perpendicular to the height adjustment screw (801), wherein the shaft (802) is connected to the height adjustment screw (801) via a torsion spring, and a roller body (803) is rotatably sleeved on the shaft (802); Wherein, the roller body (803) forms an acute angle with the conveying direction of the insulating paper.

4. The device for double-folding insulating paper with adhesive tape according to claim 2, characterized in that: The shaping member (7) comprises a first right-angle member (701) and a first right-angle groove (702) formed by the first right-angle member (701); a first rolling wheel group (703) is arranged on a vertical side wall of the first right-angle groove (702); a distance between the first rolling wheel group (703) and a horizontal side wall of the first right-angle groove (702) is less than or equal to the thickness of the insulating paper; and a rolling wheel radius of the first rolling wheel group (703) is greater than a preset folding height of the insulating paper.

5. The device for double-folding insulating paper with adhesive tape for flanging according to claim 2, characterized in that: A second right-angle piece (303) is provided at the end of the guide seat (301), a second right-angle groove (304) is provided on the second right-angle piece (303), a second rolling wheel set (305) is provided on the horizontal side wall of the second right-angle groove (304), and the distance between the second rolling wheel set (305) and the horizontal side wall of the second right-angle groove (304) is less than the thickness of the insulating paper plus the adhesive tape, and the rolling wheel radius of the second rolling wheel set (305) is greater than the height of the right-angle side (5) of the insulating paper.

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