TWI740337B - Manufacturing equipment for bouncing bed and method for manufacturing bouncing bed - Google Patents

Abstract

A manufacturing equipment for bouncing bed and a method for manufacturing bouncing bed are provided. The manufacturing equipment for bouncing bed includes a frame body, a rotating seat, a loading platform, a plurality of fixing member, a restricting member, a driving assembly and at least one welding device. The rotating seat has a bearing which is rotatable relative to the frame body. The loading platform is assembled to the bearing. The fixing mambers is detachably assembled to the loading platform. The restricting member is wound around the loading platform. The restricting member and the loading platform are being in a simultaneous movement relationship. The driving assembly is assembled to the restricting member.

Description

Bounce bed manufacturing equipment and bounce bed manufacturing method

The invention relates to a bouncing bed manufacturing equipment and a bouncing bed manufacturing method.

According to the general bouncer’s manufacturing process, the elastic cloth is sewn into a ring by purely manual methods, and then the ring is installed on the frame of the bouncer. However, this manufacturing method is not only easy for the elastic cloth to be used for a period of time. The loops are detached, and multiple manpower is required in the sewing process, which causes the production price of the bounce bed to be too high, and the production quantity of the bounce bed is difficult to increase, so that consumers cannot buy the lower price and high durability bounce The bed has shortcomings that need to be improved urgently.

Therefore, it is necessary to provide a novel and progressive bouncing bed manufacturing equipment and a bouncing bed manufacturing method to solve the above-mentioned problems.

The main purpose of the present invention is to provide a bouncing bed manufacturing equipment and a bouncing bed manufacturing method, which can quickly and automatically manufacture the bouncing bed to replace the traditional manual sewing bouncing bed manufacturing process, and the bouncing bed has a relatively strong structure.

To achieve the above objective, the present invention provides a bouncing bed manufacturing equipment, which includes a frame, a rotating base, a bearing platform, a plurality of fixed parts, an actuator, a driving assembly and at least one welding device. The rotating seat is provided with a bearing which can rotate relative to the frame body. The bearing platform is assembled with the bearing so as to rotate with the bearing. The fixing pieces are detachably arranged on the bearing platform and arranged in a ring shape. The fixing pieces include two clamping pieces, and the two clamping pieces are used for selectively clamping an elastic cloth. The actuating element is arranged around the bearing platform and moves simultaneously with the bearing platform. The driving assembly is provided with a rotating motor, and the rotating shaft of the rotating motor is assembled with the actuating member to drive the actuating member to rotate. The at least one welding device can selectively weld and fix the two clamping pieces of the fixing piece and the elastic cloth.

In order to achieve the above objective, the present invention further provides a method for manufacturing a bounce bed, which uses a bounce bed manufacturing equipment as described above, and further includes the following steps: preparing an elastic cloth and arranging the elasticity on the bearing platform, and the fixing parts The second clamping piece clamps the periphery of the elastic cloth; the rotation motor of the drive assembly rotates the bearing table by the actuating piece, so that the welding device corresponds to one of the fixing pieces, when the welding device corresponds to After one of the fixing parts, the fixing part can be welded, so that the second of the fixing parts, the clamping part and the elastic cloth are welded and fixed; after one of the fixing parts is welded, the rotation motor of the driving assembly continues Rotate so that the welding device corresponds to the other fixing part, and then the welding of the other fixing part can be continued.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to Figures 1 to 16, which show a preferred embodiment of the present invention. The bounce bed manufacturing equipment and the bounce bed manufacturing method of the present invention include a frame body 1, a rotating seat 2, a bearing platform 3, and a plurality of fixing members 4 , Actuating member 5, a driving assembly 6 and at least one welding device 7.

The rotating base 2 is provided with a bearing 21 which can rotate relative to the frame body 1.

The bearing platform 3 is assembled to the bearing 21 to rotate with the bearing 21.

The fixing members 4 are detachably arranged on the carrying platform 3 and arranged in a ring shape. The fixing members 4 include two clamping members 41 for selectively clamping an elastic cloth 9.

The actuating member 5 is arranged around the carrying platform 3 and moves simultaneously with the carrying platform 3.

The driving assembly 6 is provided with a rotating motor 61, and the rotating shaft of the rotating motor 61 is assembled with the actuating member 5 to drive the actuating member 5 to rotate, so that the rotating shaft of the rotating motor 61 is the same as the bearing platform 3 move. Compared with the way of rotating the bearing 21 to drive the bearing table 3, the driving mode of the rotating shaft of the rotating motor 61 and the actuating member 5 has a smaller torque requirement, so the rotating motor with a smaller torque can be used 61 can effectively rotate the carrying platform 3.

The at least one welding device 7 can selectively weld and fix the two clamping members 41 of the fixing member 4 and the elastic cloth 9. In this embodiment, it is the welding device 7.

Therefore, the present invention provides another method for manufacturing a bouncing bed, which uses a bouncing bed manufacturing equipment as described above, and further includes the following steps: preparing the elastic cloth 9 and placing the elastic cloth 9 on the bearing platform 3, and The two clamping members 41 of the fixing member 4 clamp the periphery of the elastic cloth 9; the rotation motor 61 of the driving assembly 6 rotates the carrying platform 3 by the actuating member 5, so that the welding device 7 corresponds to one of them For the fixing member 4, when the welding device 7 corresponds to a fixing member 4, the fixing member 4 can be welded, so that the second of the fixing members 4, the clamping member 41 and the elastic cloth 9 are welded and fixed; After welding one of the fixing parts 4, the rotation motor 61 of the driving assembly 6 continues to rotate, so that the welding device 7 corresponds to the other fixing part 4, and then the other fixing part 4 can be welded. After the fixing parts 4 are welded, the elastic cloth 9 is fixed to the fixing parts 4, and the fixing parts 4 together with the elastic cloth 9 can be disassembled from the bearing platform 3 and installed on the bouncer. The bed frame. Therefore, the present invention can quickly and automatically manufacture a bounce bed to replace the traditional manual sewing bounce bed manufacturing process, and the elastic cloth 9 and the fixing parts 4 are welded, which can have a stronger structure.

Specifically, the outer periphery of the carrying platform 3 is provided with a plurality of locking tooth portions 31 arranged in a ring shape, and the actuating member 5 is a chain 51 that surrounds and engages the locking tooth portions 31, and the rotation motor The rotating shaft of 61 is provided with a driving gear 62, and the driving gear 62 is meshed with the chain 51. In other embodiments, the actuating member 5 can also be a driving belt.

Preferably, the chain 51 bypasses the driving gear 62 so that the driving gear 62 meshes with the inner side of the chain 51. The driving assembly 6 further includes two driven gears 63, and the driving gear 62 is located between the two driven gears 63 The radial distance between the driving gear 62 and the bearing 21 is greater than the radial distance between each of the driven gears 63 and the bearing 21, and the two driven gears 63 mesh with the outer side of the chain 51, respectively. The two driven gears 63 can increase the proportion of the chain 51 surrounding the carrying platform 3 so that the chain 51 can mesh with more of the toothing portions 31 and reduce the single-point force of the chain 51. In this embodiment, the driving assembly 6 further includes a first lifting device 64 and a first moving device 65, so that the rotating motor 61 can be lifted and moved radially relative to the bearing platform 3. The first moving device 65 can Adjust the tension of the chain 51 to prevent the chain from loosening.

Furthermore, the top of the frame body 1 is provided with a ring-shaped guide surface 11, the bearing platform 3 extends along the axis of rotation of the bearing 21 and is provided with a plurality of guide posts 32 facing the frame body 1, each of the guide posts 32 One end is respectively provided with a rolling element 321, and the rolling elements 321 of the guide posts 32 respectively abut against the guide surface 11, so that the periphery of the carrying platform 3 can be in a stable and horizontal state without being easily deformed.

In the present embodiment, the center of the frame 1 is provided with an accommodating space 12, the rotating seat 2 is accommodated in the accommodating space 12, and the bottom of the rotating seat 2 is radially provided with a plurality of pins 22, the pins 22 is fixed to the frame 1 so that the rotating base 2 and the carrying platform 3 will not move relative to the frame 1.

In this embodiment, the carrying platform 3 includes a ring-shaped base plate 33 and a plurality of supporting members 34. The supporting members 34 are arranged in a radial pattern and one end facing inward is respectively assembled with the bearing 21, and the supporting members 34 face The outer ends are respectively assembled with the base plate 33. The fixing members 4 are arranged on the base plate 33, wherein the base plate 33 is composed of a plurality of arc-shaped plates 331, and any two adjacent arc-shaped plates 331 and a support Pieces of 34 phases are connected. In detail, the carrying platform 3 includes a plurality of spokes 35. The spokes 35 are fan-shaped and pieced together to form a circular plate. Any two adjacent spokes 35 and a supporting member 34 are far away from the substrate 33. In combination, the radial size of the substrate 33 is larger than the radial size of the webs 35, which are used to carry the elastic cloth 9 so that the elastic cloth 9 is placed flat. The bearing platform 3 further includes a circular connecting plate 36. The outer periphery of the connecting plate 36 is embedded with the radially inward end of the spokes 35. The spokes 35 are connected to the supporting members 34 and the The bearing 21 is fixedly connected.

Preferably, the carrying platform 3 further includes an annular link 37 surrounding the rotating base 2, and the link 37 is assembled with a side of the base plate 33 away from the supporting members 34. In this embodiment, the connecting member 37 is provided with the tooth portions 31 arranged in a ring shape on the periphery. Therefore, after the chain 51 drives the connecting member 37, the connecting member 37 can drive the base plate 33 to rotate. In addition, the linkage member 37 is provided with a plurality of connecting members 371. The connecting members 371 extend along the rotation axis of the bearing 21 and abut against the base plate 33 in a radial direction and are fixed to each other.

Therefore, the above-mentioned base plates 33, the supporting members 34, the spokes 35, the connecting plates 36, and the linkage member 37 are fixed in a locking manner, so they can be disassembled for convenient transportation and lowering. Logistics and distribution costs at the time of sale.

Please further refer to FIGS. 13 to 15 in which the carrying platform 3 is provided with a plurality of jigs 38. In this embodiment, the jigs 38 are arranged on the base plate 33. The jigs 38 are arranged in a ring shape, and at least one pin 381 The two clamping pieces 41 penetrated through the fixing piece 4 and inserted into the smelting tool 38 to avoid damage to the bearing platform 3 during the welding process.

The two clamping members 41 of the fixing member 4 respectively include a clamping portion 411 and a positioning portion 412 integrally connected with each other. The at least one pin 381 penetrates through the positioning portion 412 of the two clamping members 41, and the two clamping portions 411 face each other. A wave structure is provided on one side respectively, and the elastic cloth 9 can be clamped with strong friction force when the two clamping members 41 of the fixing member 4 are not yet welded.

Preferably, the driving assembly 6 is provided with a plurality of sensors 66, and the sensors 66 respectively have different relative heights (as shown in FIGS. 5 and 6), and the bearing platform 3 is provided with a plurality of loops. The arrayed elements 39 to be sensed (as shown in FIG. 7), the relative heights of the elements 39 to be sensed correspond to a sensor 66 respectively, and a sensor 66 is matched by a element to be sensed 39 , The rotation angle of the carrying platform 3 can be accurately calculated according to the different sensors 66 sensed by the component 39 to be sensed, so as to achieve efficient automatic control without the need for the sensors 66 They are arranged in a ring around the carrying platform 3, so the wiring length of the sensors 66 can be saved.

Please further refer to Figures 9 to 12, the welding device 7 includes a welding machine 71, the welding machine 71 is provided with a welding head 711, the welding head 711 can selectively connect the two clamping parts 41 of the fixing member 4 welding. The welding device 7 further includes a second lifting device 72, and the second lifting device 72 can selectively lift the welding machine 71 along the axis of rotation of the bearing 21.

Preferably, the welding device 7 includes a fixed plate 73 and a sliding plate 74. The welding machine 71 is fixed on the sliding plate 74, and the sliding plate 74 can be opposite to the fixed plate 73 transversely to the rotation axis of the bearing 21. Sliding for welding the elastic cloth 9 of different radial sizes, so the fixing members 4 can be arranged in a ring size according to the elastic cloth 9 of different sizes, and bounce beds of different sizes can be manufactured smoothly.

In detail, the sliding plate 74 is provided with a perforation 741, the fixed plate 73 is provided with a sliding groove 731 extending in the horizontal direction, and an elevating and shrinking assembly 75 is located on the side of the fixed plate 73 away from the sliding plate 74 and is provided with a The retractable engaging member 751 passes through the sliding groove 731 and the through hole 741. When the engaging member 751 contracts in the direction of the fixing plate 73, the engaging member 751 moves the sliding plate 74 Press tightly toward the fixing plate 73, thereby fixing the sliding plate 74 and the fixing plate 73.

In this embodiment, the through hole 741 is provided with a step portion 742, and the shape of the end of the engaging member 751 away from the elevating and shrinking component 75 is matched with the step portion 742, so that the engaging member 751 can be concealed to slide the The plate 74 is tightly pressed with the fixing plate 73.

It should be noted that, as shown in FIG. 16, it is preferable that the welding device 7 welds and fixes the fixing member 4 and the elastic cloth 9 by ultrasonic welding, and the fixing member 4 is adjacent to the clamping member of the welding device 7. At least one circular notch 413 is formed by the welding device 7 to effectively melt and weld the two clamping members 41 and the elastic cloth. In this embodiment, two circular notches 413 are formed.

In summary, the jumping bed manufacturing equipment and the jumping bed manufacturing method of the present invention can quickly and automatically manufacture the jumping bed to replace the traditional manual sewing manufacturing process of the jumping bed, and the jumping bed has a relatively strong structure.

1: frame 2: Rotating seat 3: Bearing platform 4: Fixed parts 5: Actuator 6: Drive components 7: Welding device 9: Elastic cloth 11: Guide surface 12: accommodating space 21: Bearing 22: Pin 31: Card tooth part 32: guide post 33: substrate 34: Support 35: spokes 36: connecting plate 37: Linkage 38: Fixture 39: Components to be sensed 321: Rolling Piece 331: curved board 371: Connector 381: Pin 41: Clip 411: Clip 412: Positioning Department 413: round notch 51: chain 61: Turn the motor 62: driving gear 63: passive gear 64: The first lifting device 65: The first mobile device 66: Sensor 71: Welding machine 72: The second lifting device 73: fixed plate 74: Sliding plate 75: Ups and downs 711: Welding head 731: Chute 741: perforation 742: stage 751: Card Payment

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded view of a preferred embodiment of the present invention. Figure 3 is a partial disassembly diagram of a preferred embodiment of the present invention. Fig. 4 is a top view of Fig. 3. Figure 5 is a perspective view of the drive assembly of the present invention. Fig. 6 is a side view of Fig. 5; Figure 7 is a side view of a preferred embodiment of the present invention. Figure 8 is a side cross-sectional view of a preferred embodiment of the present invention. Fig. 9 is a partial enlarged view of Fig. 8. Figure 10 is a partial exploded view of the welding device of the present invention. Figures 11 and 12 are side views of the operation of the welding device of the present invention. Figure 13 is a partial schematic diagram of a preferred embodiment of the present invention. Fig. 14 is an exploded view of Fig. 13; Fig. 15 is a side sectional view of Fig. 13; Figure 16 is a schematic diagram of the completion of welding of the present invention.

1: frame

3: Bearing platform

4: Fixed parts

7: Welding device

33: substrate

Claims (21)

A bouncing bed manufacturing equipment, including: A frame A rotating seat with a bearing that can rotate relative to the frame; A bearing platform, assembled to the bearing to rotate with the bearing; A plurality of fixing pieces are detachably arranged on the bearing platform and arranged in a ring shape, and the fixing pieces include two clamping pieces, and the two clamping pieces are used for selectively clamping an elastic cloth; The actuating member is arranged around the bearing platform and moves simultaneously with the bearing platform; A driving assembly is provided with a rotating motor, and the rotating shaft of the rotating motor is assembled with the actuating member to drive the actuating member to rotate; At least one welding device, the at least one welding device can selectively weld and fix the two clamping pieces of the fixing piece and the elastic cloth. The bounce bed manufacturing equipment according to claim 1, wherein a plurality of locking tooth portions in a circular configuration are provided on the periphery of the bearing platform, the actuating member is a chain, and the chain surrounds and engages the locking tooth portions, The rotating shaft of the rotating motor is provided with a driving gear, and the driving gear is meshed with the chain. The bounce bed manufacturing equipment according to claim 2, wherein the chain bypasses the driving gear so that the driving gear meshes with the inner side of the chain, and the driving assembly further includes two driven gears, and the driving gear is located between the two driven gears. Meanwhile, the radial distance between the driving gear and the bearing is greater than the radial distance between each driven gear and the bearing, and the two driven gears respectively mesh with the outer side of the chain. The bounce bed manufacturing equipment according to claim 3, wherein the driving assembly further includes a first lifting device and a first moving device, so as to lift and move the rotating motor relative to the bearing platform and radially move. The bounce bed manufacturing equipment according to claim 1, wherein the top of the frame is provided with a ring-shaped guide surface, the bearing platform extends along the axis of rotation of the bearing and is provided with a plurality of guide posts facing the frame, each One end of the guide post is respectively provided with a rolling element, and the rolling elements of the guide posts respectively abut against the guide surface. The bounce bed manufacturing equipment according to claim 5, wherein the center of the frame body is provided with an accommodating space, the rotating seat is accommodated in the accommodating space, the bottom of the rotating seat is radially provided with a plurality of pins, the The pins are fixed to the frame body. The bounce bed manufacturing equipment according to claim 1, wherein the bearing platform includes a ring-shaped base plate and a plurality of support members, and the support members are arranged in a radial shape and one end facing inward is respectively assembled with the bearing, and the supports One end of the parts facing outward is respectively assembled with the base plate, and the fixing parts are arranged on the base plate. The bounce bed manufacturing equipment according to claim 7, wherein the base plate is composed of a plurality of arc-shaped plates, and any two adjacent arc-shaped plates are assembled with a support member. The bouncing bed manufacturing equipment according to claim 7, wherein the bearing platform includes a plurality of spokes, the spokes are fan-shaped and pieced together into a circular plate, and any two adjacent spokes and one of the support members are far away from the substrate One side is assembled, and the radial size of the substrate is larger than the radial size of the webs. The bouncing bed manufacturing equipment according to claim 9, wherein the bearing platform further includes a circular connecting plate, the outer periphery of the connecting plate is embedded with one end of the spokes radially inward, and the spokes and The supporting parts and the bearing are fixedly connected. The bounce bed manufacturing equipment according to claim 9, wherein the bearing platform further includes a ring-shaped linkage member, the linkage member surrounds the rotating seat, and the linkage member is assembled with a side of the base plate away from the support members Connectedly, a plurality of locking tooth portions arranged in a ring shape are arranged on the periphery of the linkage member, the actuating member is a chain, and the chain surrounds and meshes with the locking tooth portions, the rotating shaft of the rotating motor is provided with a driving gear, the The driving gear meshes with the chain. The bounce bed manufacturing equipment according to claim 11, wherein the linkage member is provided with a plurality of connecting members, and the connecting members extend along the rotation axis of the bearing and abut against the base plate in a radial direction and are fixed to each other. The bounce bed manufacturing equipment according to claim 1, wherein the bearing platform is provided with a plurality of jigs, the jigs are arranged in a ring shape, and at least one pin is inserted through the two clamps of the fixing member and inserted into the jig. The bouncing bed manufacturing equipment according to claim 1, wherein the driving assembly is provided with a plurality of sensors, and the sensors have different relative heights, and the bearing platform is provided with a plurality of elements to be sensed arranged in a ring , The relative height of the waiting sensing element corresponds to a sensor respectively. The bounce bed manufacturing equipment according to claim 1, wherein the welding device includes a welding machine, the welding machine is provided with a welding head, and the welding head can selectively weld the two clamps of the fixing member. The bounce bed manufacturing equipment according to claim 15, wherein the welding device further includes a second lifting device, and the second lifting device can selectively lift the welding machine table along the axis of rotation of the bearing. The bounce bed manufacturing equipment according to claim 15, wherein the welding device includes a fixed plate and a sliding plate, the welding machine is fixed to the sliding plate, and the sliding plate can be transverse to the rotation axis of the bearing relative to the fixed The board slides. The bounce bed manufacturing equipment according to claim 17, wherein the sliding plate is provided with a perforation, the fixed plate is provided with a chute extending in a horizontal direction, and an elevating and shrinking component is located on a side of the fixed plate away from the sliding plate and is arranged There is a retractable engaging member, the engaging member penetrates through the sliding groove and the perforation, when the engaging member contracts in the direction of the fixed plate, the engaging member presses the sliding plate toward the fixed plate . The bounce bed manufacturing equipment according to claim 18, wherein a plurality of locking tooth portions arranged in a ring shape are provided on the periphery of the bearing platform, the actuating member is a chain, and the chain surrounds and engages the locking tooth portions, The rotating shaft of the rotating motor is provided with a driving gear, the driving gear is meshed with the chain; the chain bypasses the driving gear, so that the driving gear is meshed with the inner side of the chain, the driving assembly further includes two driven gears, the driving gear is located Between the two driven gears, the radial distance between the driving gear and the bearing is greater than the radial distance between each driven gear and the bearing, and the two driven gears respectively mesh with the outer side of the chain; the drive assembly further includes a first Lifting device and a first moving device to lift and move the rotating motor relative to the bearing platform and radially move; the top of the frame is provided with an annular guide surface, and the bearing platform extends along the axis of rotation of the bearing There are a plurality of guide posts facing the frame body, one end of each guide post is respectively provided with a rolling element, and the rolling elements of the guide posts respectively abut against the guide surface; the center of the frame body is provided with an accommodation space, and the rotation The seat is accommodated in the accommodating space, and the bottom of the rotating seat is radially provided with a plurality of pins, and the pins are fixed to the frame; the bearing platform includes a ring-shaped base plate and a plurality of support members, the support members They are arranged radially and are respectively assembled with the bearing at one end facing inward, and the supporting parts are assembled with the base plate at one end facing outwards respectively, and the fixing parts are arranged on the base plate; the base plate is formed by a plurality of arc-shaped plates. Any two adjacent arc-shaped plates are assembled with a support; the bearing platform includes a plurality of spokes, the spokes are fan-shaped and pieced together into a circular plate, any two of the adjacent spokes and One side of the support member away from the base plate is assembled and connected, and the radial dimension of the base plate is larger than the radial dimension of the webs; The rim is embedded with the radially inward end of the spokes, and the spokes are fixedly connected with the supporting parts and the bearing; the bearing platform further includes a ring-shaped linkage member, and the linkage member rotates around the Seat, the linkage member is assembled with the base plate on a side away from the support members, and the outer periphery of the linkage member is provided with a plurality of teeth portions arranged in a ring shape, and the chain surrounds and engages with the teeth portions, the The rotating shaft of the rotating motor is provided with a driving gear, the driving gear is meshed with the chain; the linkage is provided with a plurality of connecting pieces, the connecting pieces extend along the axis of rotation of the bearing and radially bend and abut against the base plate and Phase fixed installation; the bearing platform is provided with a plurality of smelting tools, the smelting tools are arranged in a ring shape, at least one pin is inserted through the two clamps of the fixing part and inserted into the smelting tool; the driving assembly is provided with a plurality of sensors The sensors have different relative heights, the carrier is provided with a plurality of elements to be sensed arranged in a ring, and the relative heights of the elements to be sensed respectively correspond to a sensor; the welding device is further It includes a second lifting device that can selectively lift the welding machine along the axis of rotation of the bearing; the two clamping pieces of the fixing piece each include a clamping portion and a positioning portion that are integrally connected , The at least one pin passes through the positioning part of the two clamping parts, and one of the two clamping parts is respectively provided with In a wave structure, the perforation is provided with a stepped portion, and the shape of an end of the retaining member away from the up-and-down component matches the stepped portion. A method for manufacturing a bouncing bed, which uses the bouncing bed manufacturing equipment according to any one of claims 1 to 19, and further includes the following steps: Prepare an elastic cloth and arrange the elasticity on the bearing platform, and clamp the periphery of the elastic cloth by the two clamping pieces of the fixing parts; The rotation motor of the driving assembly rotates the bearing table by the actuating member, so that the welding device corresponds to one of the fixing members. When the welding device corresponds to one of the fixing members, the fixing member can be welded. So that the second of the fixing parts, the clamping part and the elastic cloth are welded and fixed; After one of the fixing parts is welded, the rotation motor of the driving assembly continues to rotate, so that the welding device corresponds to the other fixing part, and then the other fixing part can be welded. The method for manufacturing a bounce bed according to claim 20, wherein the welding device uses ultrasonic welding to weld and fix the fixing member and the elastic cloth, and the clamping member of the fixing member adjacent to the welding device is formed by the welding device At least one circular notch.

Images