PVC cloth welding positioning system

Abstract

The invention discloses a PVC cloth welding and positioning system, and relates to the technical field of PVC cloth processing, the PVC cloth welding and positioning system comprises a supporting frame with a workbench, a transmission device arranged on the supporting frame, at least one conductive copper ring and a power device, the transmission device is used for transmitting PVC cloth, the PVC cloth comprises at least two transmission rollers and at least two pressing roller sets, and the transmission rollers are arranged on the supporting frame. One end of the PVC cloth is wound on one transmission roller and is wound on the other transmission roller after being compressed by the at least two compression roller groups, so that part of the PVC cloth is tightly attached to the surface of the workbench when the PVC cloth is transmitted, and the power device is used for supplying power to the conductive copper ring and driving the conductive copper ring to reciprocate towards the workbench. The technical problems that in the prior art, the mode of manually positioning the PVC cloth is tedious in operation and low in efficiency, the PVC cloth is prone to deformation due to manual positioning, and the product quality is affected can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of PVC cloth processing, in particular to a PVC cloth welding positioning system. Background Art

[0002] PVC fabric is a fabric coated with PVC glue and can be used to make waterproof products such as swimming rings and raincoats.

[0003] At present, before feeding the PVC cloth into the welding machine, the PVC cloth needs to be cut first, and then the cut PVC cloth is placed on the workbench, and the conductive copper ring is driven to move up and down so that the conductive copper ring is consistent with the shape of the final PVC cloth. In the prior art, the PVC cloth is positioned manually, and one workstation requires 4 people to operate. The 4 people grab the 4 ends of the PVC cloth respectively and apply tension to straighten the PVC cloth, thereby avoiding processing defects such as wrinkles on the surface of the PVC cloth.

[0004] However, manually positioning the PVC fabric has the disadvantages of cumbersome operation and low efficiency, and the artificial pulling force is uncontrollable. When one person pulls too much, it is easy to cause the PVC fabric to deform, affecting the quality of the product. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a PVC fabric welding positioning system to solve the technical problems of the existing manual positioning method in the background technology, which has cumbersome operation, low efficiency, and manual positioning, which easily causes deformation of the PVC fabric and affects the quality of the product.

[0006] The present invention provides a PVC cloth welding positioning system, comprising a support frame with a workbench, a transmission device arranged on the support frame, at least one conductive copper ring, and a power device;

[0007] The transmission device is used to transmit the PVC cloth, and the PVC cloth includes at least two transmission rollers and at least two groups of pressing rollers, at least one of the transmission rollers and at least one of the pressing rollers is arranged on one side of the workbench, and at least another transmission roller and at least another of the pressing rollers is arranged on the other side of the workbench;

[0008] One end of the PVC cloth is wound around one of the transmission rollers, and is wound around another transmission roller after being compressed by at least two of the compression rollers, so that when the PVC cloth is being transmitted, part of the PVC cloth is closely attached to the surface of the workbench;

[0009] The power device is used to supply power to the conductive copper ring and drive the conductive copper ring to reciprocate toward the workbench.

[0010] Furthermore, the power device includes a driving component and a power supply component, the power supply component is used to supply power to the conductive copper ring, and the driving component is used to drive the conductive copper ring to reciprocate toward the workbench.

[0011] Further, the driving assembly includes at least one lifting driving member, a connecting shell, and a copper ring connecting frame connected between the connecting shell and the conductive copper ring;

[0012] Wherein, the lifting drive member is used to drive the connecting shell to perform lifting movement.

[0013] Furthermore, the driving assembly includes a plurality of copper ring connecting frames, which are arranged at intervals along the circumference of the connecting shell, and each of the copper ring connecting frames is connected to one of the conductive copper rings;

[0014] Wherein, each of the conductive copper rings is of different types.

[0015] Furthermore, the power device further comprises a guide member disposed on the support frame and a sliding platform slidably connected to the guide member, and the sliding platform is connected to the driving end of the lifting drive member;

[0016] Among them, one end of the connecting shell is penetrated by the sliding table and is connected to a turntable, and the turntable is rotated to adjust the conductive copper ring of one type facing the workbench to the conductive copper ring of another type.

[0017] Furthermore, the driving assembly further comprises a fixed connection member, and the fixed connection member is used to fixedly connect the turntable and the sliding table;

[0018] Wherein, any one of the turntable and the sliding table is provided with a first through hole for the fixed connecting member to pass through, and the other is provided with a plurality of second through holes for the fixed connecting member to pass through, and the plurality of second through holes are arranged at intervals along the rotation track of the turntable.

[0019] Further, the power supply assembly includes a conductive copper rod disposed in the connection housing and a conductive terminal connected to the conductive copper rod, and the conductive copper rod is fixedly connected to the sliding platform;

[0020] Wherein, the connecting shell includes an insulating shell part and a plurality of conductive connecting parts, each of the conductive connecting parts is electrically connected to each of the copper ring connecting frames, and each of the conductive connecting parts is used to be electrically connected to the conductive terminal.

[0021] Furthermore, the guide terminal is directly opposite to the workbench;

[0022] There is a connecting gap portion between the conductive copper rod and the insulating shell portion, and the size of the connecting gap portion is larger than the size of the conductive terminal and the size of the conductive connecting portion. When one of the conductive copper rings is facing the workbench, the corresponding conductive connecting portion and the conductive terminal are in a conductive state.

[0023] Furthermore, both sides of the conductive connecting portion opposite to the conductive terminal are arranged in an arc shape.

[0024] Furthermore, the pressing roller group includes a telescopic rod body having a fixed portion and a telescopic portion, two roller bodies respectively arranged on the fixed portion and the telescopic portion, and a handpiece connected to the telescopic portion.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In a PVC cloth welding positioning system provided by the present invention, a transmission device, a conductive copper ring and a power device are arranged on a support frame of a workbench, so that when the PVC cloth is positioned, the PVC cloth can be left uncut, that is, the PVC cloth is in a roll shape, and the rolled PVC cloth is wound on a transmission roller, and one end of the PVC cloth is manually pulled so that the PVC cloth passes through two groups of pressing rollers in sequence and is wound on another transmission roller, and during the transmission process, part of the PVC cloth can be closely attached to the surface of the workbench, and the surface of the PVC cloth is compacted by the pressing roller group, so that the processing defect of wrinkles on the surface of the PVC cloth can be avoided, and the method of manually positioning the PVC cloth in the prior art is solved, which has the technical problems of complicated operation, low efficiency, and manual positioning, which easily causes deformation of the PVC cloth and affects the quality of the product, and when the PVC cloth needs to be molded, the conductive copper ring is powered by the power device in the present application, and the conductive copper ring is driven to reciprocate toward the workbench to achieve the molding process of the PVC cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view of a PVC fabric welding positioning system according to an embodiment of the present invention;

[0028] Figure 2 A three-dimensional diagram from another perspective of a PVC fabric welding positioning system in one embodiment of the present invention;

[0029] Figure 3 A three-dimensional diagram from another perspective of a PVC cloth welding positioning system in one embodiment of the present invention;

[0030] Figure 4for Figure 3 A magnified schematic diagram of part A;

[0031] Figure 5 A top view of a PVC cloth welding positioning system in one embodiment of the present invention;

[0032] Figure 6 for Figure 5 AA cutaway stereogram;

[0033] Figure 7 for Figure 6 An enlarged schematic diagram of part B.

[0034] Reference numerals

[0035] In the figure: 100, support frame; 110, workbench; 200, transmission device; 210, transmission roller; 220, clamping roller group; 221, fixing part; 222, telescopic part; 223, roller body; 224, hand piece; 300, conductive copper ring; 400, power device; 410, driving assembly; 411, lifting driving member; 412, connecting shell; 4121, insulating shell part; 4122, conductive connecting part; 4123, connecting gap part; 413, copper ring connecting frame; 414, guide member; 415, sliding table; 416, turntable; 417, fixed connecting member; 418, first through hole; 419, second through hole; 420, power supply assembly; 421, conductive copper rod; 422, conductive terminal. DETAILED DESCRIPTION

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] In addition, the term "and / or" as used herein includes any and all combinations of one or more related listed items. In the detailed description and claims, a list of items connected by the term "one of" may mean any of the listed items. For example, if items A and B are listed, the phrase "one of A and B" means only A or only B. In another example, if items A, B, and C are listed, the phrase "one of A, B, and C" means only A; only B; or only C. Item A may contain a single element or multiple elements. Item B may contain a single element or multiple elements. Item C may contain a single element or multiple elements. In the detailed description and claims, a list of items connected by the terms "one of - less than one", "one of - less than one" or other similar terms may mean any combination of the listed items. For example, if items A and B are listed, the phrase "one of - less than one of A and B" or "one of - less than one of A or B" means only A; only B; or A and B. In another example, if items A, B, and C are listed, the phrase "less than one of A, B, and C" or "less than one of A, B, or C" means only A; or only B; only C; A and B (excluding C); A and C (excluding B); B and C (excluding A); or all of A, B, and C. Item A may include a single element or multiple elements. Item B may include a single element or multiple elements. Item C may include a single element or multiple elements.

[0038] See also Figure 1-Figure 7 As shown, the present invention provides a PVC cloth welding positioning system, including a support frame 100 with a workbench 110, a transmission device 200 arranged on the support frame 100, at least one conductive copper ring 300, and a power device 400. It should be noted that in this embodiment, the conductive copper ring 300 has conductive properties and high temperature, and can mold the PVC cloth into a shape consistent with the product.

[0039] Specifically, in this embodiment, in order to solve the problem that the manual positioning method of PVC cloth is complicated, inefficient, and the manual positioning easily causes deformation of the PVC cloth, which affects the quality of the product, in this embodiment, the transmission device 200 is used to transmit the PVC cloth, and the PVC cloth includes at least two transmission rollers 210 and at least two groups of pressing roller groups 220, at least one transmission roller 210 and at least one pressing roller group 220 are arranged on one side of the workbench 110, and at least another transmission roller 210 and at least another pressing roller group 220 are arranged on the other side of the workbench 110;

[0040] One end of the PVC cloth is wound around a conveying roller 210, and is compressed by at least two compression rollers 220 before being wound around another conveying roller 210, so that a portion of the PVC cloth is closely attached to the surface of the workbench 110 during the conveying.

[0041] The power device 400 is used to supply power to the conductive copper ring 300 and drive the conductive copper ring 300 to reciprocate toward the workbench 110 .

[0042] That is to say, in some practical situations, the PVC cloth may not be cut, that is, the PVC cloth is in a roll shape, and the roll PVC cloth is wound on a transmission roller 210, and one end of the PVC cloth is manually pulled so that the PVC cloth passes through two groups of pressing rollers 220 in sequence and is wound on another transmission roller 210. In the transmission process, part of the PVC cloth can be closely attached to the surface of the workbench 110, and the surface of the PVC cloth is compacted by the pressing roller group 220, so as to avoid the processing defect of wrinkles on the surface of the PVC cloth, and solve the problem that the manual positioning method of the PVC cloth in the prior art is complicated, inefficient, and the manual positioning easily causes the PVC cloth to deform, which affects the quality of the product. When the PVC cloth needs to be formed, the power device 400 in this embodiment supplies power to the conductive copper ring 300 and drives the conductive copper ring 300 to reciprocate toward the workbench 110, so as to realize the forming process of the PVC cloth.

[0043] To further understand the present case, in the present embodiment, the transmission device 200 has two transmission rollers 210 and two groups of pressure roller groups 220. The first transmission roller 210 and the first group of pressure roller groups 220 can be arranged at the front end of the workbench 110, and the second transmission roller 210 and the second group of pressure roller groups 220 can be arranged at the end of the workbench 110. It should be noted that the two transmission rollers 210 and the two groups of pressure roller groups 220 do not limit the number of transmission rollers 210 and pressure roller groups 220, and it can also include other numbers of transmission rollers 210 and pressure roller groups 220, which are not specifically explained here.

[0044] To facilitate the compaction of the PVC fabric, in this example, the compacting roller group 220 includes a telescopic rod body having a fixed portion 221 and a telescopic portion 222, two roller bodies 223 respectively arranged on the fixed portion 221 and the telescopic portion 222, and a handpiece 224 connected to the telescopic portion 222. Specifically, the two roller bodies 223 are rotatably connected to the fixed portion 221 and the telescopic portion 222 respectively, and an elastic member, such as a spring, can be arranged in the telescopic portion 222 to elastically connect the fixed portion 221 and the telescopic portion 222. The elastic property of the elastic member is utilized to enable the two roller bodies 223 to fit tightly, and in order to facilitate the adjustment of the gap between the two roller bodies 223, the handpiece 224 in this embodiment is utilized to conveniently apply an upward pulling force to the roller body 223 on the telescopic portion 222.

[0045] In some preferred embodiments, in order to facilitate continuous processing of PVC cloth, the positioning system may further include a servo motor and a PLC controller. The output end of the servo motor may be connected to the transmission roller 210, and in this embodiment, the power device 400 and the servo motor may be electrically connected to the PLC controller, and the start and stop of the servo motor are controlled by the PLC controller. Specifically, the number of revolutions of the servo motor is controlled by the PLC controller so that a portion of the PVC cloth is closely attached to the workbench 110. At this time, the servo motor stops running, and the power device 400 supplies power to the conductive copper ring 300 and drives the conductive copper ring 300 to move downward toward the workbench 110 to complete the molding process of the PVC cloth. Subsequently, the conductive copper ring 300 is controlled to move upward. At this time, the servo motor is in operation, and this cycle is repeated.

[0046] Due to the characteristics of the conductive copper ring 300 that need to be lifted and lowered and conduct electricity, in this example, the power device 400 includes a driving component 410 and a power supply component 420. The power supply component 420 is used to supply power to the conductive copper ring 300, and the driving component 410 is used to drive the conductive copper ring 300 to reciprocate toward the workbench 110.

[0047] Specifically, the driving component 410 includes at least one lifting driving member 411, a connecting shell 412, and a copper ring connecting frame 413 connected between the connecting shell 412 and the conductive copper ring 300, wherein the lifting driving member 411 is used to drive the connecting shell 412 to perform lifting movement, and the driving component 410 includes a plurality of copper ring connecting frames 413, and the plurality of copper ring connecting frames 413 are arranged at intervals along the circumference of the connecting shell 412, and each copper ring connecting frame 413 is connected to a conductive copper ring 300, wherein each conductive copper ring 300 is of different types. It should be noted that the connecting shell 412 is a cylindrical structure, and the conductive copper ring 300 is specifically a shape corresponding to the shape of the product, such as in the present application, the swimming ring is processed, in Figure 1 The conductive copper ring 300 shown in the figure is a ring-shaped body, and the conductive copper ring 300 and the copper ring connecting frame 413 can be four, and the four conductive copper rings 300 correspond to different types. For example, the four conductive copper rings 300 correspond to large swimming rings, medium-to-large swimming rings, medium-to-small swimming rings, and small swimming rings, respectively.

[0048] In order to ensure the stability of each conductive copper ring 300 during operation, in this example, the power device 400 also includes a guide member 414 arranged on the support frame 100 and a sliding table 415 slidably connected to the guide member 414, the sliding table 415 is connected to the driving end of the lifting drive member 411, wherein the sliding table 415 is penetrated at one end of the connecting shell 412 and is connected to a turntable 416, and by rotating the turntable 416, one type of conductive copper ring 300 facing the workbench 110 can be adjusted to another type of conductive copper ring 300, and the driving component 410 also includes a fixed connecting member 417, and the fixed connecting member 417 is used to fix the turntable 416 and the sliding table 415. A first through hole 418 for the fixed connecting member 417 to penetrate is provided on any one of the turntable 416 and the sliding table 415, and a plurality of second through holes 419 for the fixed connecting member 417 to penetrate are provided on the other, and the plurality of second through holes 419 are arranged at intervals along the rotation trajectory of the turntable 416.

[0049] The example is not limiting, the first through hole 418 can be set on the sliding table 415, and the plurality of second through holes 419 can be set on the turntable 416. Specifically, when the first conductive copper ring 300 is facing the workbench 110, and the type of the first conductive copper ring 300 does not correspond to the product, the turntable 416 is manually rotated so that the turntable 416 drives the connecting shell 412 to rotate, and the connecting shell 412 is used to drive the corresponding conductive copper ring 300 and the copper ring connecting frame 413 to rotate, so that the conductive copper ring 300 and the copper ring connecting frame 413 of the corresponding type are facing the workbench 110, and then the fixed connector 417 is passed through the corresponding second through hole 419 and extended into the first through hole 418, thereby completing the fixed connection between the turntable 416 and the sliding table 415 to achieve the replacement of the type of the conductive copper ring 300. It should be noted that the second through hole 419 can be a straight-through hole body, and the first through hole 418 can be a threaded hole. Correspondingly, the fixed connector 417 can be a bolt.

[0050] It should be noted that there can also be four second through holes 419, and each second through hole 419 can be arranged corresponding to four conductive copper rings 300, that is, when the conductive copper ring 300 and the copper ring connecting frame 413 of the same type are facing the workbench 110, there is a second through hole 419 and the first through hole 418 are arranged concentrically. By limiting the position, the effect of facilitating fixation can be achieved.

[0051] In addition, in some intelligent controls, a servo motor can be directly connected to the extended end of the connecting shell 412, and the connecting shell 412 can be driven by the servo motor to rotate to complete the adjustment of different conductive copper rings 300 and the copper ring connecting frame 413. Correspondingly, the turntable 416, the first through hole 418, and the second through hole 419 shown in this embodiment are directly deleted.

[0052] To facilitate power supply to the conductive copper ring 300, in the present embodiment, the power supply assembly 420 includes a conductive copper rod 421 disposed within the connecting shell 412 and a conductive terminal 422 connected to the conductive copper rod 421, and the conductive copper rod 421 is fixedly connected to the sliding platform 415, wherein the connecting shell 412 includes an insulating shell portion 4121 and a plurality of conductive connecting portions 4122, each conductive connecting portion 4122 is electrically connected to each copper ring connecting frame 413, and each conductive connecting portion 4122 is used to be electrically connected to the conductive terminal 422.

[0053] Furthermore, the guide terminal is facing the workbench 110, wherein a connecting gap portion 4123 is provided between the conductive copper rod 421 and the insulating shell portion 4121, and the size of the connecting gap portion 4123 is larger than the size of the conductive terminal 422 and the size of the conductive connecting portion 4122. When one of the conductive copper rings 300 is facing the workbench 110, the corresponding conductive connecting portion 4122 and the conductive terminal 422 are in a conductive state, and the two sides opposite to the conductive connecting portion 4122 and the conductive terminal 422 are both arc-shaped.

[0054] It should be noted that there is only one conductive terminal 422, and by limiting the position of the conductive terminal 422, the conductive copper ring 300 facing the workbench 110 can be powered, while the other conductive copper rings 300 are in a non-powered state, so that the conductive copper rings 300 of the corresponding type can be powered in a targeted manner, further reducing electricity costs and electricity safety.

[0055] In summary, the PVC fabric welding positioning system provided by the first embodiment of the present invention has at least the following beneficial effects compared with the traditional method of fixing PVC fabrics:

[0056] In a PVC cloth welding positioning system provided by the present invention, a transmission device 200, a conductive copper ring 300 and a power device 400 are arranged on a support frame 100 of a workbench 110, so that when the PVC cloth is positioned, the PVC cloth can be positioned without cutting, that is, the PVC cloth is in a roll, and the rolled PVC cloth is wound on a transmission roller 210, and one end of the PVC cloth is manually pulled so that the PVC cloth passes through two groups of pressing rollers 220 in sequence and is wound on another transmission roller 210, and during the transmission process, part of the PVC cloth can be closely attached to the workbench. The surface of the PVC cloth 110 is compacted by the pressing roller group 220, which can avoid the processing defect of wrinkles on the surface of the PVC cloth, solve the problem of manual positioning of the PVC cloth in the prior art, which has the characteristics of cumbersome operation, low efficiency, manual positioning, easy deformation of the PVC cloth, and affecting the quality of the product. When the PVC cloth needs to be molded, the power device 400 in this embodiment is used to power the conductive copper ring 300 and drive the conductive copper ring 300 to reciprocate toward the workbench 110 to achieve the molding of the PVC cloth.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A PVC fabric welding positioning system, characterized in that: It comprises a support frame with a workbench, a transmission device arranged on the support frame, at least one conductive copper ring, and a power device; The transmission device is used to transmit the PVC cloth, and the PVC cloth includes at least two transmission rollers and at least two groups of pressing rollers, at least one of the transmission rollers and at least one of the pressing rollers is arranged on one side of the workbench, and at least another transmission roller and at least another of the pressing rollers is arranged on the other side of the workbench; One end of the PVC cloth is wound around one of the transmission rollers, and is wound around another transmission roller after being compressed by at least two of the compression rollers, so that when the PVC cloth is being transmitted, part of the PVC cloth is closely attached to the surface of the workbench; The power device is used to supply power to the conductive copper ring and drive the conductive copper ring to reciprocate toward the workbench.

2. A PVC fabric welding positioning system according to claim 1, characterized in that: The power device includes a driving component and a power supply component. The power supply component is used to supply power to the conductive copper ring, and the driving component is used to drive the conductive copper ring to reciprocate toward the workbench.

3. A PVC fabric welding positioning system according to claim 2, characterized in that: The driving assembly includes at least one lifting driving member, a connecting shell, and a copper ring connecting frame connected between the connecting shell and the conductive copper ring; Wherein, the lifting drive member is used to drive the connecting shell to perform lifting movement.

4. A PVC fabric welding positioning system according to claim 3, characterized in that: The driving assembly comprises a plurality of copper ring connecting frames, which are arranged at intervals along the circumference of the connecting shell, and each of the copper ring connecting frames is connected to a conductive copper ring; Wherein, each of the conductive copper rings is of different types.

5. A PVC fabric welding positioning system according to claim 4, characterized in that: The power device further comprises a guide member disposed on the support frame and a sliding platform slidably connected to the guide member, wherein the sliding platform is connected to a driving end of the lifting drive member; Among them, one end of the connecting shell is penetrated by the sliding table and is connected to a turntable, and the turntable is rotated to adjust the conductive copper ring of one type facing the workbench to the conductive copper ring of another type.

6. A PVC fabric welding positioning system according to claim 5, characterized in that: The driving assembly further comprises a fixed connection member, and the fixed connection member is used to fixedly connect the turntable and the sliding table; Wherein, any one of the turntable and the sliding table is provided with a first through hole for the fixed connecting member to pass through, and the other is provided with a plurality of second through holes for the fixed connecting member to pass through, and the plurality of second through holes are arranged at intervals along the rotation track of the turntable.

7. A PVC fabric welding positioning system according to claim 5, characterized in that: The power supply assembly includes a conductive copper rod disposed in the connection housing and a conductive terminal connected to the conductive copper rod, and the conductive copper rod is fixedly connected to the sliding platform; Wherein, the connecting shell includes an insulating shell part and a plurality of conductive connecting parts, each of the conductive connecting parts is electrically connected to each of the copper ring connecting frames, and each of the conductive connecting parts is used to be electrically connected to the conductive terminal.

8. A PVC fabric welding positioning system according to claim 7, characterized in that: The guide terminal is directly opposite to the workbench; There is a connecting gap portion between the conductive copper rod and the insulating shell portion, and the size of the connecting gap portion is larger than the size of the conductive terminal and the size of the conductive connecting portion. When one of the conductive copper rings is facing the workbench, the corresponding conductive connecting portion and the conductive terminal are in a conductive state.

9. A PVC fabric welding positioning system according to claim 8, characterized in that: Both sides of the conductive connecting portion opposite to the conductive terminal are arranged in an arc shape.

10. A PVC fabric welding positioning system according to claim 1, characterized in that: The pressing roller set comprises a telescopic rod body having a fixed portion and a telescopic portion, two roller bodies respectively arranged on the fixed portion and the telescopic portion, and a hand piece connected to the telescopic portion.

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