A surface treatment device for manufacturing wear-resistant elevator belts

Abstract

The present invention discloses a surface treatment device for manufacturing a wear-resistant elevator belt. The present invention relates to the technical field of belt processing, and includes a panel. A first fixing plate is fixedly connected to the side of the upper surface of the panel. A second fixing plate is fixedly connected to the left side of the first fixing plate on the upper surface of the panel. The end of the second fixing plate is fixedly connected to a first support frame. The panel, the first fixing plate and the second fixing plate are provided to support the device. A grinding device, the grinding device includes a limiting rod. By providing the grinding device, it can cooperate with the placing device to complete the grinding of the barbs and rough positions generated on the outer surface of the elevator belt due to vulcanization, so that the elevator belt has a wear-resistant effect during operation. The limiting rod is fixedly connected to the upper surface of the first fixing plate, and the shape of the limiting rod is an inverted U shape, achieving the effect of flexibly clamping the elevator belt and performing all-round grinding.

Description

Technical Field

[0001] The present invention relates to the technical field of belt processing, and specifically relates to a surface treatment device for manufacturing wear-resistant elevator belts. Background Art

[0002] Elevator belts are made of special reinforced tear-resistant polyester canvas and are provided with a steel wire anti-tear layer. They have good performance, reliable operation, and require less maintenance. They have the characteristics of small elongation, large conveying capacity, stable operation, convenient maintenance, and good adaptability to bulk materials. They are widely used in departments such as building materials, mines, chemical industries, light industries, machinery, electric power, and grains. According to the performance of the cover rubber, they can be divided into: ordinary type, flame-retardant type, cold-resistant type, wear-resistant type, heat-resistant type, acid and alkali-resistant type, etc. According to the internal structure, they can be divided into: ordinary structure type, transverse reinforcement type, pre-embedded coil anti-tear type;

[0003] During the production of elevator belts, the hot vulcanization method is adopted. During the hot vulcanization process, many rubber residues will be generated on the outer surface of the belt due to uneven hot vulcanization. Therefore, it is necessary to polish and smooth the outer surface of the belt; when polishing the belt on the market, since the texture of the belt is relatively soft after vulcanization, the belt will be damaged during the clamping process. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A surface treatment device for manufacturing wear-resistant elevator belts includes a panel. A first fixing plate is fixedly connected to the side of the upper surface of the panel. A second fixing plate is fixedly connected to the left side of the first fixing plate on the upper surface of the panel. The end of the second fixing plate is fixedly connected to a first support frame. The panel, the first fixing plate, and the second fixing plate can support the device;

[0005] A grinding device. The grinding device includes a limiting rod. By setting the grinding device, it can cooperate with the placing device to complete the grinding of the barbs and rough positions on the outer surface of the elevator belt caused by vulcanization, so that the elevator belt has a wear-resistant effect during operation. The limiting rod is fixedly connected to the upper surface of the first fixing plate. The shape of the limiting rod is an inverted U shape. The limiting rod is set in an inverted U shape, which can adjust the grinding height, so as to meet the grinding work of belts with different widths and facilitate the installation of the belt on the placing device. A sliding frame is slidably connected to the outer surface of the limiting rod. The sliding frame can slide on the outer surface of the inverted U-shaped limiting rod. A servo motor is fixedly connected to the outer surface of the sliding frame. The setting of the servo motor can produce a rotating effect to complete the grinding work on the outer surface of the elevator belt;

[0006] A placing device, wherein the placing device comprises an annular track. By setting the placing device, the elevator belt can be placed, so that the outer surface of the elevator belt can be polished in all directions. The annular track is fixedly connected to an end of the first support frame away from the second fixed plate. The number of the annular tracks is two, and the two annular tracks are respectively fixedly connected to the end of the first support frame on the side of the second fixed plate. The setting of the annular track can make the elevator belt rotate during polishing, so as to perform all-round polishing on the outer surface of the elevator belt.

[0007] A dustproof device, wherein the dustproof device includes a dust cover. By setting the dustproof device, the elevator belt debris generated by grinding can be collected, thereby preventing the belt debris from splashing in the operation workshop and causing the working environment to be polluted. The dust cover is fixedly connected to the side of the outer surface of the annular track away from the card slot. The setting of the dust cover can prevent the belt debris from splashing everywhere. The outer surface of the dust cover is fixedly connected to an air outlet pipe, and the air outlet pipe runs through the dust cover.

[0008] Preferably, the output end of the servo motor is fixedly connected to a rotating column. By setting the servo motor and the rotating column, the grinding head can be driven to rotate, thereby grinding the barbs on the outer surface of the elevator belt. The end of the rotating column away from the servo motor is fixedly connected to the grinding head, and the outer surface of the grinding head is fixedly connected to a first fixed block.

[0009] Preferably, the number of the first fixed blocks is several, and the several first fixed blocks are all fixedly connected to the outer surface of the grinding head, the outer surface of the first fixed block is fixedly connected with a grinding ring, and the arrangement of the first fixed block and the grinding ring can generate rotation under the drive of the rotating column, thereby performing a grinding operation on the elevator belt clamped in the placement device.

[0010] Preferably, a sliding block is slidably connected to the groove of the annular track, the number of the sliding blocks is several, and the several sliding blocks are all slidably connected to the groove of the annular track, and a placement ring is fixedly connected to the side of the outer surface of the sliding block away from the annular track. The arrangement of the annular track, the sliding block and the placement ring can make the elevator belt rotate around the annular track, so that the outer surface of the belt can be polished in all directions when polishing the outer surface of the belt.

[0011] Preferably, a blocking plate is fixedly connected to the end of the placement ring. The setting of the blocking plate prevents the belt in the placement ring from detaching from the device during the grinding process. A clamping device is fixedly connected between the opposite surfaces of the inner cavity of the placement ring. By setting the clamping device, the belt can be clamped so that the belt will loosen during the grinding process. The clamping device includes a fixing column, which is fixedly connected to the end of the inner wall of the placement ring.

[0012] Preferably, a placing column is fixedly connected between opposite faces of the fixing column. A first soft pad is fixedly connected to the outer surface of the placing column. The setting of the first soft pad can clamp the outer surface of the belt when clamping the belt, thereby preventing the belt from being damaged. A second support frame is fixedly connected to the outer surface of the fixing column.

[0013] Preferably, a spring is fixedly connected to the lower surface of the second support frame. The bottom end of the spring is fixedly connected to a pressing plate. An anti-slip pad is fixedly connected to the lower surface of the pressing plate. The settings of the spring, the pressing plate and the anti-slip pad can clamp the end of the belt, so that the end of the belt is fixedly connected to the outer surface of the placing column.

[0014] Preferably, an exhaust fan is fixedly connected to the inner wall of the air outlet pipe. The setting of the exhaust fan can suck the belt debris in the inner cavity of the dust-proof cover into the inner cavity of the air outlet pipe, thereby completing the collection of the debris and achieving the effect of keeping the environment clean. A third support frame is fixedly connected to the inner wall of the air outlet pipe. The third support frame is fixedly connected to one side of the inner wall of the air outlet pipe close to the air inlet end of the exhaust fan.

[0015] Preferably, a guiding column is fixedly connected to the end of the third support frame. A second soft pad is fixedly connected to the outer surface of the guiding column. A soft sealing ring is fixedly connected to the end of the second soft pad. The settings of the guiding column, the second soft pad and the soft sealing ring can make the air outlet pipe become a sealed environment when the exhaust fan is not working, so as to prevent dust from entering the inner cavity of the air outlet pipe. After the exhaust fan starts to work, the soft sealing ring deforms under the influence of the air flow, so that the air flow can enter the inner cavity of the air outlet pipe.

[0016] Preferably, a collecting device is fixedly connected to the air outlet end of the air outlet pipe. By setting the collecting device, the debris can be collected. The collecting device includes a first fixing ring, which is fixedly connected to the inner wall of the air outlet pipe. A third soft pad is fixedly connected to the inner ring of the first fixing ring. The setting of the third soft pad can facilitate the installation of the collection when removing and installing the collection ring. The end of the third soft pad is fixedly connected to a second fixing ring.

[0017] The present invention provides a surface treatment device for manufacturing a wear-resistant hoist belt. It has the following beneficial effects:

[0018] 1. The surface treatment device for manufacturing the wear-resistant elevator belt can, by setting up a grinding device, cooperate with the placement device to complete the grinding of the burrs and rough positions on the outer surface of the elevator belt caused by vulcanization, so that the elevator belt has a wear-resistant effect during operation. The limiting rod is set in an inverted U shape, which can adjust the grinding height, so as to meet the grinding work of belts with different widths and facilitate the installation of the belt on the placement device. The sliding frame can slide on the outer surface of the inverted U-shaped limiting rod.

[0019] 2. The surface treatment device for manufacturing the wear-resistant elevator belt can, by setting up a placement device, place the elevator belt to conduct all-round grinding on the outer surface of the elevator belt. The setting of the annular track enables the elevator belt to rotate during grinding, so as to conduct all-round grinding on the outer surface of the elevator belt.

[0020] 3. The surface treatment device for manufacturing the wear-resistant elevator belt can, by setting up a dust-proof device, collect the debris of the elevator belt generated by grinding, so as to prevent the debris from splashing in the operating workshop and polluting the working environment. The setting of the dust-proof cover can prevent the belt debris from splashing everywhere.

[0021] 4. The surface treatment device for manufacturing the wear-resistant elevator belt can, by setting up the annular track, sliding block and placement ring, enable the elevator belt to rotate around the annular track, so as to conduct all-round grinding on the outer surface of the belt when grinding the outer surface of the belt.

[0022] 5. The surface treatment device for manufacturing the wear-resistant elevator belt can, by setting up the guide column, the second soft pad and the soft sealing ring, make the air outlet pipe into a sealed environment when the exhaust fan is not working, so as to prevent dust from entering the inner cavity of the air outlet pipe. After the exhaust fan starts working, the soft sealing ring deforms under the influence of the air flow, so that the air flow can enter the inner cavity of the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the schematic diagram of the external structure of a surface treatment device for manufacturing a wear-resistant elevator belt of the present invention;

[0024] Figure 2 is the schematic diagram of the partial structure of the present invention;

[0025] Figure 3 is the schematic diagram of the structure of the grinding device of the present invention;

[0026] Figure 4 is the schematic diagram of the structure of the placement device of the present invention;

[0027] Figure 5 is the schematic diagram of the partial structure of the placement device of the present invention;

[0028] Figure 6 This is a schematic structural view of the clamping device of the present invention;

[0029] Figure 7 This is a schematic cross-sectional structural view of the dust-proof device of the present invention;

[0030] Figure 8 This is a schematic structural view of the collection device of the present invention.

[0031] In the figure: 1, panel; 2, first fixing plate; 3, grinding device; 4, second fixing plate; 5, first support frame; 6, placing device; 7, dust-proof device; 31, limiting rod; 32, sliding frame; 33, servo motor; 34, rotating column; 35, grinding head; 36, first fixing block; 37, grinding ring; 61, annular track; 62, sliding block; 63, placing ring; 64, partition board; 65, clamping device; 651, fixing column; 652, placing column; 653, first soft pad; 654, second support frame; 655, spring; 656, pressing plate; 657, anti-slip pad; 71, dust-proof cover; 72, air outlet pipe; 73, exhaust fan; 74, third support frame; 75, diversion column; 76, second soft pad; 77, soft sealing ring; 78, collection device; 781, first fixing ring; 782, third soft pad; 783, second fixing ring; 784, collection box; 785, fixing rod; 786, purification block. Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with the drawings and specific implementation manners. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0033] The first embodiment is as Figures 1 - 3 shown. The present invention provides a technical solution: a surface treatment device for manufacturing a wear-resistant elevator belt, including a panel 1. A first fixing plate 2 is fixedly connected to the side of the upper surface of the panel 1. A second fixing plate 4 is fixedly connected to the left side of the upper surface of the panel 1 where the first fixing plate 2 is located. The end of the second fixing plate 4 is fixedly connected to a first support frame 5. The settings of the panel 1, the first fixing plate 2, and the second fixing plate 4 can support the device;

[0034] Grinding device 3, the grinding device 3 includes a limiting rod 31. By setting the grinding device 3, it can cooperate with the placing device 6 to complete the grinding of the barbs and rough positions on the outer surface of the elevator belt caused by vulcanization, so that the elevator belt has an anti-wear effect during operation. The limiting rod 31 is fixedly connected to the upper surface of the first fixing plate 2. The shape of the limiting rod 31 is an inverted U shape. The limiting rod 31 is set in an inverted U shape, which can adjust the grinding height, so as to meet the grinding work of belts with different widths and facilitate the installation of the belt on the placing device 6. The outer surface of the limiting rod 31 is slidably connected with a sliding frame 32. The sliding frame 32 can slide on the outer surface of the inverted U-shaped limiting rod 31. The outer surface of the sliding frame 32 is fixedly connected with a servo motor 33. The setting of the servo motor 33 can produce a rotating effect to complete the grinding work on the outer surface of the elevator belt;

[0035] Placing device 6, the placing device 6 includes an annular track 61. By setting the placing device 6, the elevator belt can be placed to perform a full-range grinding work on the outer surface of the elevator belt. The annular track 61 is fixedly connected to one end of the first support frame 5 away from the second fixing plate 4. The number of the annular tracks 61 is two, and the two annular tracks 61 are respectively fixedly connected to the ends of the first support frame 5 on the side of the second fixing plate 4. The setting of the annular track 61 can make the elevator belt rotate during grinding, so as to perform a full-range grinding on the outer surface of the elevator belt;

[0036] Dust-proof device 7, the dust-proof device 7 includes a dust-proof cover 71. By setting the dust-proof device 7, the elevator belt debris generated by grinding can be collected to prevent the work environment from being polluted by the splashing of belt debris in the operation workshop. The dust-proof cover 71 is fixedly connected to the side of the annular track 61 away from the card slot. The setting of the dust-proof cover 71 can prevent the belt debris from splashing everywhere. An air outlet pipe 72 is fixedly connected to the outer surface of the dust-proof cover 71, and the air outlet pipe 72 penetrates through the dust-proof cover 71.

[0037] The output end of the servo motor 33 is fixedly connected with a rotating column 34. By setting the servo motor 33 and the rotating column 34, the grinding head 35 can be driven to rotate to grind the barbs on the outer surface of the elevator belt. The end of the rotating column 34 away from the servo motor 33 is fixedly connected with a grinding head 35, and a first fixing block 36 is fixedly connected to the outer surface of the grinding head 35.

[0038] The number of the first fixing blocks 36 is several, and several first fixing blocks 36 are fixedly connected to the outer surface of the grinding head 35. A grinding ring 37 is fixedly connected to the outer surface of the first fixing block 36. The first fixing block 36 and the grinding ring 37 can rotate under the drive of the rotating column 34, so as to grind the elevator belt clamped in the placing device 6. When in use, the operator connects the servo motor 33 to the power supply and turns on the switch of the servo motor 33. The servo motor 33 starts to work, driving the rotating column 34 and the grinding head 35 to rotate. During the rotation operation, the grinding ring 37 grinds the outer surface of the belt.

[0039] The second embodiment is as Figures 4 - 6 shown. A sliding block 62 is slidably connected to the card slot of the annular track 61. The number of the sliding blocks 62 is several, and several sliding blocks 62 are all slidably connected to the card slot of the annular track 61. A placing ring 63 is fixedly connected to the side of the outer surface of the sliding block 62 away from the annular track 61. The annular track 61, the sliding block 62 and the placing ring 63 can make the elevator belt rotate around the annular track 61, so as to perform all-round grinding on the outer surface of the belt when grinding the outer surface of the belt.

[0040] A partition plate 64 is fixedly connected to the end of the placing ring 63. The partition plate 64 prevents the belt in the placing ring 63 from separating from the device during grinding. A clamping device 65 is fixedly connected between the opposite surfaces of the inner cavity of the placing ring 63. By arranging the clamping device 65, the belt can be clamped, so that the belt loosens during grinding. The clamping device 65 includes a fixed column 651, and the fixed column 651 is fixedly connected to the end of the inner wall of the placing ring 63.

[0041] A placing column 652 is fixedly connected between the opposite surfaces of the fixed column 651. A first soft pad 653 is fixedly connected to the outer surface of the placing column 652. The first soft pad 653 can clamp the outer surface of the belt when clamping the belt, so as to prevent the belt from being damaged. A second support frame 654 is fixedly connected to the outer surface of the fixed column 651.

[0042] The lower surface of the second support frame 654 is fixedly connected with a spring 655. The bottom end of the spring 655 is fixedly connected with a pressing plate 656. The lower surface of the pressing plate 656 is fixedly connected with an anti-slip pad 657. The spring 655, the pressing plate 656 and the anti-slip pad 657 can clamp the end of the belt, so that the end of the belt is fixedly connected to the outer surface of the placing column 652. When in use, by pulling the pressing plate 656 and placing the belt under the pressing plate 656, under the action of the spring 655, the pressing plate 656 and the anti-slip pad 657 will press the belt, so as to achieve the effect of fixing the end of the belt.

[0043] The third embodiment is as Figures 7 - 8 shown. A exhaust fan 73 is fixedly connected to the inner wall of the air outlet pipe 72. The exhaust fan 73 can suck the belt debris in the inner cavity of the dust-proof cover 71 into the inner cavity of the air outlet pipe 72, so as to complete the collection of the debris and keep the environment clean. When in use, the operator connects the exhaust fan 73 to the power supply and turns on the switch of the exhaust fan 73. The exhaust fan 73 starts to work, so as to generate suction in the dust-proof cover 71. A third support frame 74 is fixedly connected to the inner wall of the air outlet pipe 72. The third support frame 74 is fixedly connected to one side of the inner wall of the air outlet pipe 72 close to the air inlet end of the exhaust fan 73.

[0044] The end of the third support frame 74 is fixedly connected with a guide column 75. A second soft pad 76 is fixedly connected to the outer surface of the guide column 75. The end of the second soft pad 76 is fixedly connected with a soft sealing ring 77. The guide column 75, the second soft pad 76 and the soft sealing ring 77 can make the air outlet pipe 72 become a sealed environment when the exhaust fan 73 is not working, so as to prevent dust from entering the inner cavity of the air outlet pipe 72. After the exhaust fan 73 starts to work, the soft sealing ring 77 deforms under the influence of the air flow, so that the air flow can enter the inner cavity of the air outlet pipe 72.

[0045] A collection device 78 is fixedly connected to the air outlet end of the air outlet pipe 72. By setting the collection device 78, the debris can be collected. The collection device 78 includes a first fixing ring 781. The first fixing ring 781 is fixedly connected to the inner wall of the air outlet pipe 72. A third soft pad 782 is fixedly connected to the inner ring of the first fixing ring 781. The third soft pad 782 can facilitate the installation of the collection ring 787 when the collection ring 787 is removed and installed. The end of the third soft pad 782 is fixedly connected with a second fixing ring 783.

[0046] A collection ring 787 is slidably connected between the first fixing ring 781 and the second fixing ring 783. The arrangement of the collection ring 787 can collect and clean dust. After use, the operator removes the collection ring 787 to achieve the effect of cleaning dust. A collection frame 784 is fixedly connected to the inner circle of the second fixing ring 783. A fixing rod 785 is fixedly connected to the inner wall of the collection frame 784. A purification block 786 is fixedly connected to the outer surface of the fixing rod 785. The arrangement of the collection frame 784 can collect large rubber chips. The arrangement of the purification block 786 can purify the peculiar smell generated by rubber friction.

[0047] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A surface treatment device for manufacturing wear-resistant elevator belts, characterized in that, Including: A panel (1), at the side of the upper surface of the panel (1), a first fixed plate (2) is fixedly connected, on the upper surface of the panel (1) to the left of the first fixed plate (2), a second fixed plate (4) is fixedly connected, and at the end of the second fixed plate (4), a first support frame (5) is fixedly connected; A grinding device (3), the grinding device (3) includes a limiting rod (31), the limiting rod (31) is fixedly connected to the upper surface of the first fixed plate (2), the shape of the limiting rod (31) is an inverted U shape, and a sliding frame (32) is slidably connected to the outer surface of the limiting rod (31), and a servo motor (33) is fixedly connected to the outer surface of the sliding frame (32); A placing device (6), the placing device (6) includes an annular track (61), the annular track (61) is fixedly connected to one end of the first support frame (5) away from the second fixed plate (4), the number of the annular tracks (61) is two, and the two annular tracks (61) are respectively fixedly connected to the ends of the first support frames (5) at the side of the second fixed plate (4); A dust-proof device (7), the dust-proof device (7) includes a dust-proof cover (71), the dust-proof cover (71) is fixedly connected to the side of the outer surface of the annular track (61) away from the card slot, and an air outlet pipe (72) is fixedly connected to the outer surface of the dust-proof cover (71), and the air outlet pipe (72) penetrates through the dust-proof cover (71); A sliding block (62) is slidably connected to the card slot of the annular track (61), the number of the sliding blocks (62) is several, and several sliding blocks (62) are all slidably connected to the card slot of the annular track (61), and a placing ring (63) is fixedly connected to the side of the outer surface of the sliding block (62) away from the annular track (61).

2. The surface treatment device for manufacturing a wear-resistant elevator belt according to claim 1, wherein: The output end of the servo motor (33) is fixedly connected to a rotating column (34), the end of the rotating column (34) away from the servo motor (33) is fixedly connected to a grinding head (35), and a first fixing block (36) is fixedly connected to the outer surface of the grinding head (35).

3. A surface treatment device for manufacturing a wear-resistant elevator belt according to claim 2, characterized in that: The number of the first fixing blocks (36) is several, and several first fixing blocks (36) are all fixedly connected to the outer surface of the grinding head (35), and a grinding ring (37) is fixedly connected to the outer surface of the first fixing block (36).

4. A surface treatment device for manufacturing a wear-resistant elevator belt according to claim 3, characterized in that: A partition plate (64) is fixedly connected to the end of the placing ring (63), and a clamping device (65) is fixedly connected between the opposite surfaces of the inner cavity of the placing ring (63), and the clamping device (65) includes a fixing column (651), and the fixing column (651) is fixedly connected to the end of the inner wall of the placing ring (63).

5. The surface treatment device for manufacturing a wear-resistant elevator belt according to claim 4, characterized in that: A placing column (652) is fixedly connected between the opposite surfaces of the fixing column (651), a first soft pad (653) is fixedly connected to the outer surface of the placing column (652), and a second support frame (654) is fixedly connected to the outer surface of the fixing column (651).

6. The surface treatment device for manufacturing a wear-resistant elevator belt according to claim 5, wherein: The lower surface of the second support frame (654) is fixedly connected with a spring (655), the bottom end of the spring (655) is fixedly connected with a pressing plate (656), and the lower surface of the pressing plate (656) is fixedly connected with an anti-slip pad (657).

7. A surface treatment device for manufacturing a wear-resistant elevator belt according to claim 1, characterized in that: A exhaust fan (73) is fixedly connected to the inner wall of the air outlet pipe (72), a third support frame (74) is fixedly connected to the inner wall of the air outlet pipe (72), and the third support frame (74) is fixedly connected to one side of the inner wall of the air outlet pipe (72) close to the air inlet end of the exhaust fan (73).

8. A surface treatment device for manufacturing a wear-resistant elevator belt according to claim 7, characterized in that: A flow guiding column (75) is fixedly connected to the end of the third support frame (74), a second soft pad (76) is fixedly connected to the outer surface of the flow guiding column (75), and a flexible sealing ring (77) is fixedly connected to the end of the second soft pad (76).

9. The surface treatment device for manufacturing a wear-resistant elevator belt according to claim 8, characterized in that: A collecting device (78) is fixedly connected to the air outlet end of the air outlet pipe (72). The collecting device (78) includes a first fixing ring (781), the first fixing ring (781) is fixedly connected to the inner wall of the air outlet pipe (72), a third soft pad (782) is fixedly connected to the inner ring of the first fixing ring (781), and a second fixing ring (783) is fixedly connected to the end of the third soft pad (782).

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