A manufacturing device of the heating element for the resistance welding of the thermoplastic member

Abstract

An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention may include a heating material spool on which a heating material for resistance welding is wound, a plurality of welding material spools each on which a welding material impregnated with a thermoplastic material is wound, and a heat press in which the heating material and the welding material are prepared internally such that the heating material is positioned between the plurality of welding materials wound on different welding material spools, and the heating material and the welding material are heated and pressurized to form the heating element.

Description

Technology Field

[0001] The present invention relates to an apparatus for manufacturing a heating element for resistance welding of a thermoplastic member. Background Technology

[0002] Various composite materials are used in transportation vehicles such as aircraft, ships, railways, and automobiles to ensure necessary functionality while maintaining a lighter weight. In particular, composite materials utilizing thermoplastics are employed for various purposes when manufacturing the fuselages and / or components of transportation vehicles, as they possess excellent lightweight properties and durability while also enabling the provision of additional functions.

[0003] When manufacturing products composed of thermoplastic composites, forming the product with only a single thermoplastic composite may be impractical depending on the shape and size of the product. Therefore, in some cases, two or more thermoplastic composites are used when manufacturing a single product. In this case, multiple thermoplastic composites constituting a single product can be integrated based on various welding methods.

[0004] Resistance welding is one of the welding methods utilized for welding thermoplastic composites. Resistance welding is performed by placing a heating element impregnated with a thermoplastic material at the welding interface and passing an electric current through the heating element. The heating element, to which the current is applied, is heated by Joule heating, and the base materials are joined together during the process in which the impregnated thermoplastic resin is heated, melts, and then solidifies. At this time, the heating material used to generate Joule heating remains between the base materials even after welding and can be utilized as a material for further durability enhancement and / or functionality of the composite.

[0005] In order to manufacture such a heating element, both sides of an electrically conductive heating material must be wrapped with a welding material impregnated with a thermoplastic resin, and the heating element must be further processed so that both ends of the heating material connected to the power source are exposed as both ends of the heating element, which consumes a significant amount of manpower and time. The problem to be solved

[0006] The problem that the present invention aims to solve is to provide a manufacturing apparatus capable of mass-producing heating elements used in resistance welding of thermoplastic members with uniform quality.

[0007] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0008] An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member according to an embodiment of the present invention for solving the above problem may include a heating material spool on which a heating material for resistance welding is wound, a plurality of welding material spools each on which a welding material impregnated with a thermoplastic material is wound, and a heat press in which the heating material and the welding material are prepared internally such that the heating material is positioned between the plurality of welding materials wound on different welding material spools, and the heating material and the welding material are heated and pressurized to form the heating element.

[0009] The heating material spool may include a spacer disposed between different heating materials, having a thickness corresponding to a predetermined interval, so that a plurality of heating materials are wound at a predetermined interval from each other.

[0010] It may further include a splitter located on the opposite side of the heating material spool relative to the heat press and cutting the welding material located between different heating materials that have passed through the heat press.

[0011] It may further include a guide roller positioned between the splitter and the heat press, which transmits the heating element to the splitter in a taut state.

[0012] It may further include a cutter positioned in the same direction as the splitter relative to the heat press and cutting the heating element in a direction intersecting the cutting direction by the splitter.

[0013] It may further include a welding material cutter positioned between the heat press and the welding material spool to cut the welding material, so as to cut the welding material being transferred into the interior of the heat press in a direction intersecting the heating material.

[0014] It may further include a setting guide spool having a spacing member having a thickness corresponding to the above-mentioned predetermined spacing, wherein a plurality of the heating materials that have passed through the heat press are wound with the spacing member in between.

[0015] Other specific details of the present invention are included in the detailed description and drawings. Effects of the invention

[0016] According to embodiments of the present invention, at least the following effects are achieved.

[0017] Heating elements can be mass-produced with uniform quality.

[0018] The production speed of heating elements is dramatically improved.

[0019] The effects according to the present invention are not limited to those exemplified above, and various other effects are included in this specification. Brief explanation of the drawing

[0020] FIG. 1 is a schematic diagram showing the appearance of a heating element manufactured by a device for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention. Figure 2 is a schematic cross-sectional view of a heating element cut by the aa' cutting line of Figure 1. FIG. 3 is a drawing illustrating the use of a heating element manufactured by a device for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention. FIG. 4 is a schematic perspective view of a device for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention. FIG. 5 is a schematic plan view of a device for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention. FIG. 6 is a conceptual diagram showing the state in which a heating material and a welding material are integrated by a heat press according to one embodiment of the present invention. Specific details for implementing the invention

[0021] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0022] Furthermore, the embodiments described herein will be explained with reference to cross-sectional views and / or schematic drawings, which are exemplary illustrations of the present invention. Accordingly, the form of the exemplary drawings may be modified due to manufacturing techniques and / or tolerances, etc. Additionally, in each drawing of the present invention, each component may be depicted slightly enlarged or reduced for convenience of explanation. Throughout the specification, the same reference numerals refer to the same components.

[0023] Hereinafter, the present invention will be described with reference to drawings illustrating an apparatus for manufacturing a heating element for resistance welding of a thermoplastic member according to an embodiment of the present invention.

[0024] FIG. 1 is a schematic diagram illustrating the appearance of a heating element manufactured by a device for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention. In this regard, FIG. 2 is a schematic cross-sectional view of a heating element cut along the aa' cutting line of FIG. 1.

[0025] As illustrated in FIGS. 1 and 2, a heating element (1) according to one embodiment of the present invention may have three layers. For example, in a heating element (1) according to one embodiment of the present invention, a welding material (20) may be placed at the outermost layer, and a heating material (10) may be placed in the middle. Additionally, the heating material (10) may be formed such that its width is smaller than that of the welding material (20) and its length is longer than that of the welding material (20). The welding material (20) may cover the upper, lower, left, and right sides of the heating material (10) so that the heating material (10) is not exposed to the outside, except for the ends of the heating element (1) in the longitudinal direction.

[0026] Specifically, the heating material (10) may be a conductive member for generating Joule heat in resistance welding. The heating material (10) may be made of various materials capable of generating Joule heat by connecting to an external power source. For example, the heating material may be stainless steel mesh (SS MESH).

[0027] In this regard, the welding material (20) may be a material impregnated with a thermoplastic material (thermoplastic resin) of the same or similar type as the base material to be welded, or a material impregnated with a thermoplastic material capable of welding base materials. For example, the welding material (20) may be formed by impregnating a thermoplastic material into a glass scrim.

[0028] Continuing the explanation with reference to FIG. 3, FIG. 3 is a drawing for explaining the use of a heating element manufactured by a device for manufacturing a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention.

[0029] As illustrated in FIG. 3, the heating element (1) is positioned between base materials (C) to be welded, and the heating material (10) exposed at both ends can be connected to an external power source. When current is applied to the heating material (10), the base materials (C) can be welded in the process where the thermoplastic resin impregnated in the welding material (20) melts due to the heat generated from the heating material (10) and then solidifies again.

[0030] Hereinafter, based on the above description, an apparatus for manufacturing a heating element for resistance welding of a thermoplastic member according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 is a schematic perspective view of an apparatus for manufacturing a heating element for resistance welding of a thermoplastic member according to an embodiment of the present invention. In contrast, FIG. 5 is a schematic plan view of an apparatus for manufacturing a heating element for resistance welding of a thermoplastic member according to an embodiment of the present invention.

[0031] As illustrated in FIGS. 4 and 5, a device for manufacturing a heating element (100) according to one embodiment of the present invention may include a heat press (110), a heating material spool (120), a welding material spool (131, 132), a guide roller (140), a transfer tool (150), a welding material cutter (160), a splitter (170), a cutter (180), and a setting guide spool (190).

[0032] A heat press (110) can form a heating element (1) by heating and pressurizing a heating material (10) and a welding material (20) that have entered into it. Specifically, the heat press (110) can be formed with a pair of upper and lower modules that are movable relative to each other. The heating material (10) and the welding material (20) that have entered between the pair of modules can be pressurized as the pair of modules approach each other.

[0033] In the following description, among the modules constituting the heat press (110), the module located on the upper side is referred to as the upper module (111), and the module located on the lower side is referred to as the lower module (112). The upper module (111) and the lower module (112) may be arranged to have the same height axis as the central axis. For example, the lower module (112) may be fixed to the ground and / or an object outside, and the upper module (111) may be raised by a separate drive module.

[0034] The upper module (111) and the lower module (112) may be molds having heating units such as cartridge heaters and / or electric heating wires. For example, the upper module (111) and the lower module (112) may be molds in which the surfaces facing each other are approximately rectangular or square. The upper module (111) and the lower module (112) may be heated by the heating unit while the internal heating material (10) and welding material (20) are under pressure, thereby liquefying the thermoplastic material.

[0035] At this time, a release agent may be coated on the portions of the upper module (111) and lower module (112) that come into direct contact with the welding material (20) to prevent the thermoplastic resin from sticking. Alternatively, the heating element manufacturing device (100) may include a release film spool (not shown) installed adjacent to the heat press (110). The release film spool may be a spool on which a release film is wound, and may be installed so that a user can attach the release film to the upper module (111) and / or lower module (112) as needed.

[0036] Additionally, according to the embodiment, a cooling channel may be formed in the upper module (111) and the lower module (112). Air or cooling water may flow inside the cooling channel. The cooling channel may be installed to shorten the overall process time by rapidly cooling the heat press (110).

[0037] A heating material (10) of a heating element (1) for low-temperature welding can be wound onto a heating material spool (120). The heating material spool (120) is a rotationally symmetrical member, and a tape-shaped heating material (10) can be wound onto it. The heating material spool (120) can be rotated around a rotational symmetry axis (central axis) by an external driving unit such as a motor or gear. In order to manufacture a plurality of heating elements (1) at once, a plurality of heating materials (10) can be wound onto the heating material spool (120) at a predetermined distance from each other along the extension direction of the central axis. At this time, the predetermined distance can determine the width of each heating element (1).

[0038] To form the aforementioned predetermined spacing, the heating material spool (120) may include a spacer (121). At least one spacer (121) is arranged along the central axis of the heating material spool (120) and may have a thickness corresponding to the predetermined spacing. For example, the spacer (121) may have a disc shape that extends radially from the central axis of the heating material spool (120). A plurality of heating materials (10) may be wound around the axis of the heating material spool (120) with the spacer (121) in between, so as to be spaced apart by a predetermined spacing. That is, tapes of different heating materials (10) may be wound on both sides of the spacer (121).

[0039] A welding material spool (131, 132) can be wound with a welding material impregnated with a thermoplastic material. The welding material (20) can be wound onto the welding material spool (131, 132) in the form of a strip or cloth that is wider than the heating material (10). The welding material spool (131, 132) has a rotationally symmetrical shape, and its central axis can be rotated by receiving power from a driving unit.

[0040] According to one embodiment of the present invention, two welding material spools (131, 132) may be provided, one upper and one lower. The upper welding material spool (131) and the lower welding material spool (132) may be arranged so that their rotational center axes are parallel to each other and may be aligned in the height direction to have the same footprint.

[0041] The welding material (20) being transported to the heat press (110) by the welding material spools (131, 132) can be delivered into the interior of the heat press (110) in a direction that intersects the supply direction of the heating material (10) being transported to the heat press (110) by the heating material spool (120). For example, the welding material (20) and the heating material (10) can enter the space between the upper module (111) and the lower module (112) in directions perpendicular to each other. At this time, the welding material (20) wound on the upper welding material spool (131) can enter the interior of the heat press (110) so as to be positioned above the heating material (10), and the welding material (20) wound on the lower welding material spool (132) can enter the interior of the heat press (110) so as to be positioned below the heating material (10). For the positional relationship described above, the welding material spool (131, 132) may be installed at a position rotated 90 degrees relative to the heating material spool (120) with respect to the heat press (110).

[0042] The guide roller (140) can apply tension to the welding material (20) and the heating material (10) to maintain a taut state. Each guide roller (140) includes a pair of rollers, and the pair of rollers can be rotated by interlocking with each other. The welding material (20) and / or the heating material (10) can be placed between the pair of rollers. The pair of rollers can be configured to change between a state where they are spaced apart and a state where they are in close contact with each other.

[0043] According to one embodiment of the present invention, a plurality of guide rollers (140) may be included to maintain tension of the welding material (20) and / or the heating material (10). At least one of these plurality of guide rollers (140) may be connected to a driving unit, such as a motor, to receive power and rotate. A user may move the welding material (20) and / or the heating material (10) by controlling the driving unit to rotate the guide roller (140) in a forward or reverse direction.

[0044] Specifically, the guide roller (140) may include a guide roller on the heating material spool side that is positioned between the heat press (110) and the heating material spool (120) and maintains the tension of the heating material (10) in the corresponding section. Additionally, the guide roller (140) may include a guide roller on the welding material spool side that is positioned between the heat press (110) and the welding material spools (131, 132) and maintains the tension of the welding material (20) in the corresponding section. At this time, the guide roller on the welding material spool side may include an upper guide roller on the welding material spool side that transports the welding material (20) of the upper welding material spool (131) and a lower guide roller on the welding material spool side that transports the welding material (20) of the lower welding material spool (132). Additionally, the guide roller (140) may include a splitter-side guide roller positioned between the heat press (110) and the splitter (170) to transfer the heating element (1) to the splitter (170) in a taut state.

[0045] At this time, the upper welding material spool-side guide roller is positioned at a position rotated 90 degrees relative to the heating material spool-side guide roller with respect to the heat press, and can be positioned at a higher height than the heating material spool-side guide roller. The lower welding material guide roller is positioned in the same direction as the upper welding material spool-side guide roller with respect to the heat press, and can be positioned at a lower height than the heating material spool-side guide roller. As a result, the welding material (20) and the heating element (10) passing through each guide roller (140) can have the aforementioned height relationship inside the heat press (110).

[0046] The transfer jig (150) may be a jig that holds the end of the welding material (20) wound on the welding material spool (131, 132). For example, the transfer jig (150) may have a roughly rectangular shape and a through groove may be formed along the width direction. The transfer jig (150) may be provided as a pair corresponding to a pair of welding material spools (131, 132).

[0047] Among the two transfer tools (150), the transfer tool (150) positioned higher may have a welding material (20) wound on an upper welding material spool (131) placed in the through groove, and the transfer tool (150) positioned lower may have a welding material (20) wound on a lower welding material spool (132) placed in the through groove. Meanwhile, the transfer tool (150) may include various clamping means capable of clamping the welding material (20) inside the through groove. Additionally, the transfer tool (150) may be configured to move along the supply direction of the welding material.

[0048] A welding material cutter (160) may be positioned between the heat press (110) and the welding material spool (131, 132), more specifically at the front end of the transfer tool (150). For example, a welding material cutter (160) may be provided one per each transfer tool (150), or it may be positioned on the upper transfer tool (150) and configured to cut the welding material (20) clamped on the lower transfer tool (150). The welding material cutter (160) is configured to be movable along the width direction (a direction perpendicular to the supply direction of the welding material) of the transfer tool (150) and may have a cutting blade that cuts the welding material (20) passing through the transfer tool (150) during the movement process. For example, the welding material cutter (160) may have an ultrasonic cutting blade. The movement of the welding material cutter (160) can be performed manually or driven by a separate drive unit.

[0049] The splitter (170) may be a module that separates a plurality of interconnected heating elements (1) by cutting them in the longitudinal direction (the supply direction of the heating material). The splitter (170) may be located on the opposite side of the heating material spool (120) relative to the heat press (110). The splitter (170) may include a plurality of cutting blades (e.g., ultrasonic cutters) arranged at regular intervals along the width direction (the supply direction of the welding material), so that an object passing through the splitter (170) passes through and is separated.

[0050] The cutter (180) is positioned in the same direction as the splitter (170) relative to the heat press (110) and can cut the heating element (1) and / or heating material (10) in a direction intersecting the cutting direction by the splitter (170), more specifically in a perpendicular direction. To this end, the cutter (180) may have a cutting blade with a width capable of cutting all of the heating material (10) wound on the heating material spool (120). Likewise, the cutting blade may be implemented in a manner similar to an ultrasonic cutter. Cutting by the cutter (180) may be performed by a user manually operating the cutter (180) or automatically by the driving of a drive unit.

[0051] The setting guide spool (190) can be used to initially set the heating materials (10) that have passed through the heat press (110). The setting guide spool (190) can be located on the opposite side of the heating material spool (120) with respect to the heat press (110). The setting guide spool (190) can face the heating material spool (120) with the heat press (110) in between. Additionally, when the rotational axes of the setting guide spool (190) and the heating material spool (120) extend in the left-right direction, the setting guide spool (190) and the heating material spool (120) can be aligned to have the same left-right symmetry axis.

[0052] The setting guide spool (190) may be formed identically or similarly to the heating material spool (120). Additionally, the setting guide spool (190) may include a spacing member (191) having a thickness corresponding to a predetermined spacing. Here, the spacing member (191) may be a member formed identically or similarly to the spacer (121).

[0053] The setting guide spool (190) can be used to initially align multiple heating materials (10) parallel to each other. After setting the rollers of the guide roller (140) to have a gap between them, the user can pull the heating material (10) of the heating material spool (120) through the gap between the guide rollers (140) to the opposite side of the heat press (110). Then, the user can set the heating material (10) by fixing and / or winding it onto the setting guide spool (190) facing the heating material (10). At this time, one of the heating materials (10) can be pulled in a straight line and then fixed and / or wound into the space between the different spacing members (191). Afterward, the user can fix the positional relationship of the heating materials (10) by the guide roller (140) by bringing the rollers included in the guide roller (140) into close contact and interlocking. The setting guide spool (190) can be separated from the heating materials (10) after the heating materials (10) have been aligned in this way.

[0054] Hereinafter, based on the above description, a heating element (1) is manufactured using a manufacturing apparatus (100) for a heating element for resistance welding of a thermoplastic member according to one embodiment of the present invention.

[0055] The first user can rotate the heating material spool (120) so that the heating material (10) is released from the heating material spool (120), passes between the upper module (111) and the lower module (112), and passes through the splitter-side guide roller (140). At this time, the splitter-side guide roller (140) may have a pair of rollers with some clearance.

[0056] After that, the user can wind the multiple heating materials (10) that have passed through onto the setting guide spool (190). At this time, the user can wind each heating material (10) between the spacing members (191) so that the heating materials (10) are parallel to each other. After winding the heating materials (10) onto the setting guide spool (190) so that the heating materials (10) are taut, the user can tighten the splitter-side guide roller (140). When the heating materials (10) are tightened and held by the splitter-side guide roller (140), the user can separate the setting guide spool (190) from the heating materials (10).

[0057] Afterward, the user can pull the transfer tool (150) to pass through the heat press (110) so that the welding material (20) is transferred into the heat press (110). The movement of the transfer tool (150) can be performed manually by the user or by a separate drive unit. At this time, the upper transfer tool (150) can pass through the upper side of the heating material (10) and move to the opposite side of the heat press (110). Additionally, the lower transfer tool (150) can pass through the lower side of the heating material (10) and move to the opposite side of the heat press (110). After the transfer tool (150) is moved to the opposite side, the user releases the clamping of the transfer tool (150) and moves the transfer tool (150) back to its initial position.

[0058] When the transfer tool (150) returns to its original position, the user closes the heat press (110) to integrate the heating material (10) and the welding material (20). At this time, the user can lower the upper module (111) to pressurize the intermediate body in which the welding material (20) and the heating material (10) are stacked, and then heat the heat press (110).

[0059] According to one embodiment of the present invention, the heating material (10) is exposed to the outside of the heat press (110) in a long manner, so that the thermoplastic resin melted in the heat press (110) may not completely cover both ends of the heating material (10). Therefore, the heating material (10) can be naturally exposed to both ends of the heating element (1) without undergoing separate processing.

[0060] Alternatively, to save the heating material (10), the manufacturing device (100) of the heating element according to one embodiment of the present invention may further include an impregnation prevention tape spool. The impregnation prevention tape spool may be a spool on which an impregnation prevention tape is wound. Here, the impregnation prevention tape may be, for example, PI tape. The user may attach the impregnation prevention tape to the heating material (10) exposed to the outside of the heat press (110) to prevent the thermoplastic resin melted from the welding material (20) from covering the heating material (10).

[0061] Referring to FIG. 6, the explanation continues. FIG. 6 is a conceptual diagram showing a state in which a heating material and a welding material are integrated by a heat press according to an embodiment of the present invention. When the heat press (110) is opened after it has been sufficiently cooled, a plurality of heating elements (1) can be connected to each other as shown in FIG. 6. Hereinafter, an article in which a plurality of heating elements (1) are connected to each other in this way is referred to as an intermediate product.

[0062] In this state, the user can cut the welding material (160) using a welding material cutter (160). Referring to FIG. 6, the welding material cutter (160) moves from the left to the right or from the right to the left on the upper side of the intermediate product with respect to FIG. 6 and cuts the welding material (20). As a result, the welding material (20) and the intermediate product can be separated.

[0063] Subsequently, the user can rotate the splitter-side guide roller (140) and / or the heating material spool-side guide roller (140) to move the intermediate product toward the splitter (170). As the intermediate product passes through the splitter (170), the cutting blade of the splitter (170) can enter the space between each heating material (10) and cut the welding material (20) in the longitudinal direction.

[0064] After the intermediate product has completely passed through the splitter (170), if the user cuts the intermediate product with the cutting blade of the cutter (180), the intermediate product can be cut in the width direction. Through this process, the heating element (1) shown in FIG. 1 can be obtained in the number of tapes of the heating material (10) mounted on the heating material spool (120). After that, if necessary, the user can further cut the heating material (10) to further process the heating element (1) into a shape that is convenient for use in resistance welding.

[0065] Meanwhile, if the user wishes to continue producing the heating element (1), the cutting machine (180) can be returned to its initial state, and the splitter-side guide roller (140) and / or the heating material spool-side guide roller (140) can be rotated to position a new heating material (10) between the lower module (112) and the upper module (111). Subsequently, the user can obtain additional heating elements (1) by preparing the welding material (20) using the transfer tool (150) and repeating the process described above. That is, after the initial heating material (10) is set, the setting guide spool (190) may not be used until all the heating material (10) is consumed and a new heating material (10) is set in the heating material spool (120).

[0066] According to one embodiment of the present invention, the user has the advantage of being able to rapidly manufacture a large number of heating elements (1) by repeating the process of loading the heating material (10) into the heat press (110) after a single device setting. In addition, by using a setting guide spool (190) during the setting process of the heating material (10), human error regarding the gap of the heating material (10) can be minimized. Similarly, by using a splitter (170) to cut the intermediate product, human error during the cutting process can be minimized.

[0067] A person skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0068] 1: Heating element 10: Heating material 20: Welding material 100: Heating element manufacturing device 110: Heat Press 111: Upper Module 112: Lower module 120: Heating material spool 121: Spacer 131, 132: Welding material spool 140: Guide roller 150: Feed jig 160: Welding material cutter 170: Splitter 180: Cutter 190: Setting guide spool 191: Spacing member C: Base material

Claims

Claim 1 An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member, comprising: a heating material spool in which a heating material for resistance welding is wound, wherein a plurality of heating materials are wound at a predetermined distance from each other, and a spacer having a thickness corresponding to the predetermined distance and disposed between different heating materials; a plurality of welding material spools each having a welding material impregnated with a thermoplastic material wound thereon; a heat press in which the heating material and the welding material are prepared internally so that the heating material is positioned between the plurality of welding materials wound on different welding material spools, and the heating material and the welding material are heated and pressurized to form the heating element; and a splitter located on the opposite side of the heating material spool with respect to the heat press, and which cuts the welding material located between different heating materials that have passed through the heat press. Claim 2 delete Claim 3 delete Claim 4 An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member, further comprising: a guide roller positioned between the splitter and the heat press, and transmitting the heating element to the splitter in a taut state in claim 1. Claim 5 An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member, further comprising: a cutter positioned in the same direction as the splitter relative to the heat press and cutting the heating element in a direction intersecting the cutting direction by the splitter in claim 4. Claim 6 An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member, further comprising: a welding material cutter positioned between the heat press and the welding material spool to cut the welding material, which is transferred into the interior of the heat press in a direction intersecting the heating material in claim 5. Claim 7 An apparatus for manufacturing a heating element for resistance welding of a thermoplastic member, comprising: a setting guide spool having a spacing member having a thickness corresponding to the predetermined spacing in claim 1, wherein a plurality of heating materials that have passed through the heat press are wound with the spacing member in between.

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