Expansion rib feeding automatic positioning mechanism

Abstract

The utility model discloses an automatic positioning mechanism for expansion rib feeding. Comprising a first base, a second base, a mounting vertical plate, a conveying assembly used for conveying the expansion rib ring, a conveying roller set used for conducting the expansion rib ring, a bearing assembly used for bearing the expansion rib ring, a reference assembly used for conducting lateral reference positioning on the side edge of the expansion rib ring, and a thickness detection assembly used for detecting the joint position of the expansion rib ring. And the first opening and feeding assembly and the second opening and feeding assembly are used for opening the two ends of the expansion rib ring correspondingly. According to the utility model, the operations of automatically supporting the expansion ring, automatically laterally limiting the expansion ring, automatically expanding the expansion ring, automatically detecting the joint of the expansion ring, automatically positioning the joint of the expansion ring and the like are realized, and the positioning device has the advantages of accurate positioning and efficient positioning; the problems that semi-automatic production or automatic production cannot be achieved due to the fact that the expanding rib ring is expanded manually, the expanded expanding rib ring is arranged on the sewing frame in a sleeving mode manually, and the starting position of the expanding rib ring is found manually in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loading positioning mechanism field especially relates to a muscle ring loading automatic positioning mechanism. BACKGROUND

[0002] In the clothing knitting industry, it is usually necessary to attach a muscle ring to a trouser body for sewing. In the process of sewing by hand using this technology, the muscle ring is manually stretched, put into the clothing head and placed on the sewing frame in tension, then the position of the muscle ring joint is adjusted by hand and overlapped with the trouser body. This operation method increases the labor force and reduces the production efficiency.

[0003] The existing ring muscle ring is manually put on the clothing sewing frame, and the trouser body is manually put on the clothing after the initial position is found. The sewing of the finished product is completed by the operator. This operation method cannot realize semi-automatic production or automatic production on the production line, so it is necessary to use mechanical automation to replace manual positioning of the muscle ring joint position. SUMMARY

[0004] The utility model aims at overcoming the insufficient prior art and providing a muscle ring loading automatic positioning mechanism.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: the muscle ring loading automatic positioning mechanism comprises a first base, a second base, a mounting vertical plate, a conveying assembly for conveying a muscle ring, a conveying roller set for conveying the muscle ring, a supporting assembly for supporting the muscle ring, a reference assembly for laterally positioning the side edge of the muscle ring, a thickness detection assembly for detecting the position of the muscle ring joint, a first stretching and loading assembly and a second stretching and loading assembly for respectively stretching the two ends of the muscle ring, the first base and the second base are oppositely arranged, the mounting vertical plate is vertically installed on the first base, the conveying assembly is installed on the first base and located on the side away from the second base, the conveying roller set is horizontally installed on the front side of the second base, the conveying assembly and the conveying roller set jointly convey the muscle ring by passing through the muscle ring, the first stretching and loading assembly is installed on the top of the conveying assembly and used for stretching one end of the muscle ring, the second stretching and loading assembly is installed on the top of the second base and arranged side by side with the first stretching and loading assembly, the first stretching and loading assembly and the second stretching and loading assembly respectively stretch the two ends of the muscle ring, the supporting assembly is installed on the side of the mounting vertical plate facing the second base and used for supporting the muscle ring, the reference assembly is installed on the side of the mounting vertical plate facing the second base and located above the supporting assembly, and the thickness detection assembly is installed on the mounting vertical plate and located above the supporting assembly; the conveying assembly comprises a driving conveying wheel and a muscle ring conveying driving device, the muscle ring conveying driving device is installed on the first base, and the driving conveying wheel is installed on the output end of the muscle ring conveying driving device.

[0006] By adopting the technical scheme, the position of the elastic ring joint can be automatically detected and positioned, and the elastic ring joint has the advantages of accurate positioning and high positioning efficiency, thereby solving the problem that the existing clothing enterprises cannot automatically position the elastic ring joint.

[0007] As preferred, the reference assembly comprises a hand screw, a linear guide rail, a reference bracket and a reference plate, the reference bracket is slidably arranged on the side of the mounting vertical plate through the linear guide rail, the hand screw is arranged on the reference bracket, the reference bracket is locked on the mounting vertical plate through the hand screw, the reference plate is arranged on one end of the reference bracket and used for limiting the side edge of the elastic ring on the driving transmission wheel and the transmission roller group, and a limiting block is arranged on the bottom of the reference plate.

[0008] As preferred, the supporting assembly comprises a first supporting plate moving driving device, a second supporting plate moving driving device, a first supporting plate bracket, a second supporting plate bracket, a first supporting plate and a second supporting plate, the first supporting plate moving driving device and the second supporting plate moving driving device are arranged side by side and fixed on the mounting vertical plate through the first driving device mounting plate, the first supporting plate bracket is arranged on the output end of the first supporting plate moving driving device, the second supporting plate bracket is arranged on the output end of the second supporting plate moving driving device, the first supporting plate is arranged on the first supporting plate bracket and below the reference plate, a limiting groove is arranged on the first supporting plate, and the second supporting plate is arranged on the second supporting plate bracket and below the reference plate.

[0009] As preferred, the thickness detection assembly comprises a roller lifting driving device, a test lifting plate, an axle seat, a bolt mounting plate, an adjusting bolt, an elastic member, a lever, a test rotating shaft, a roller, a swing feedback plate and a displacement photoelectric sensor, the roller lifting driving device is arranged on the mounting vertical plate, the test lifting plate is arranged on the output end of the roller lifting driving device, the axle seat is arranged on the test lifting plate, the bolt mounting plate is arranged on the top of the axle seat, the adjusting bolt is arranged on the bolt mounting plate, the lever is rotationally connected with the bottom of the axle seat through the test rotating shaft, the roller is rotationally arranged on the bottom of one end of the lever and rolls on the outer surface of the elastic ring, the swing feedback plate is transversely arranged on the top of the same end of the lever, one end of the elastic member is connected and arranged with the lower end of the adjusting bolt, the other end of the elastic member is connected and arranged with the other end of the lever, and the displacement photoelectric sensor is above the swing feedback plate and arranged on the mounting vertical plate through a sensor mounting plate.

[0010] Preferably, the first expansion feeding assembly comprises a tendon feeding driving device, a tendon feeding horizontal moving plate, a tendon expansion driving device, a second driving device mounting plate, a tendon expansion fixing rod, a tensioning driving shaft, a tensioning rotating shaft, a tendon expansion tensioning rod and a tendon limiting rod, the tendon feeding driving device is arranged on the top of the conveying assembly, the tendon feeding horizontal moving plate is arranged on the output end of the tendon feeding driving device, the tendon expansion driving device is fixed on the tendon feeding horizontal moving plate through the second driving device mounting plate, the tendon expansion fixing rod is transversely arranged on the front end of the tendon feeding horizontal moving plate, the middle part of the tendon expansion tensioning rod is rotationally connected with the tendon feeding horizontal moving plate through the tensioning rotating shaft, the output end of the tendon expansion driving device is drivingly connected with one end of the tendon expansion tensioning rod, the other end of the tendon expansion tensioning rod is relatively moved with respect to the tendon expansion fixing rod to expand or loosen the end of the tendon ring, and the tendon limiting rod is vertically arranged on the front end of the tendon expansion fixing rod and used for laterally positioning the expanded tendon ring.

[0011] Specifically, the structure and working principle of the second expansion feeding assembly are the same as those of the first expansion feeding assembly.

[0012] Preferably, a controller or a control system is arranged for signal control of the thickness detection assembly, the first expansion feeding assembly, the second expansion feeding assembly, the conveying assembly and the supporting assembly, the controller is a PLC programmable logic controller, and the PLC programmable logic controller can be a programmable logic controller with a model of XDS-40T-D, but is not limited thereto. The operator can input various working parameters for controlling the operation of each component into the controller or the control system.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a supporting assembly and a reference assembly are arranged on the side of the installation vertical plate facing the second base, and the structures of the supporting assembly and the reference assembly are designed respectively, so that the reference plate of the reference assembly can laterally limit the side edge of the tendon ring, and the supporting assembly can automatically position the two-dimensional space of the tendon ring.

[0015] 2. The first expansion feeding assembly and the second expansion feeding assembly are arranged on the top of the conveying assembly and the top of the second base respectively, so that the first expansion feeding assembly and the second expansion feeding assembly can automatically expand the two ends of the tendon ring and put the expanded tendon ring on the conveying roller group and the driving conveying wheel, thereby solving the problems that the existing clothing enterprises cannot automatically expand the tendon ring and cannot automatically put the expanded tendon ring on the sewing frame.

[0016] 3、Its through the installation of thickness detection assembly on the installation stand and the design of the structure of the thickness detection assembly, so that it realizes automatic detection of the position of the elastic ring joint through the thickness detection assembly, and when the thickness detection assembly is used in cooperation with the supporting assembly, the reference assembly, the conveying assembly, the first opening and loading assembly, the second opening and loading assembly and the conveying roller group, it can realize automatic positioning of the elastic ring joint, and it has the advantages of accurate positioning and high positioning efficiency of the elastic ring joint, thereby solving the problem that the existing clothing enterprises cannot automatically position the elastic ring joint. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to facilitate the description, the utility model is described in detail by the following preferred embodiments and drawings.

[0018] Figure 1 It is a perspective view of the elastic ring loading automatic positioning mechanism of the utility model.

[0019] Figure 2 It is a perspective view of the elastic ring loading automatic positioning mechanism of the utility model from different angles.

[0020] Figure 3 It is an assembly perspective view of the supporting assembly and the reference assembly of the elastic ring loading automatic positioning mechanism of the utility model.

[0021] Figure 4 It is a perspective view of the thickness detection assembly of the elastic ring loading automatic positioning mechanism of the utility model.

[0022] Figure 5 It is a perspective view of the thickness detection assembly of the elastic ring loading automatic positioning mechanism of the utility model from different angles.

[0023] Figure 6 It is a perspective view of the first opening and loading assembly or the second opening and loading assembly of the elastic ring loading automatic positioning mechanism of the utility model. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model.

[0026] Referring to Figures 1 to 2 The utility model discloses a muscle ring feeding automatic positioning mechanism, including first baseplate 1, second baseplate 2, installation vertical board 3, be used for conveying muscle ring 10's conveying assembly 4, be used for the transmission of muscle ring 10's conveying roller group 5, be used for the support muscle ring 10's support assembly 6, be used for the lateral reference positioning of muscle ring 10's side edge's reference assembly 7, be used for detecting muscle ring joint 11 position's thickness detection assembly 8, be used for respectively the first straining open feeding assembly 91 and second straining open feeding assembly 92 of the both ends of muscle ring 10, first baseplate 1 and second baseplate 2 are oppositely arranged, installation vertical board 3 is erected and is installed on first baseplate 1, conveying assembly 4 is installed on first baseplate 1 and is located the side of installation vertical board 3 away from second baseplate 2, conveying roller group 5 is transversely installed on the front side of second baseplate 2, conveying assembly 4 and conveying roller group 5 are commonly through the muscle ring 10 of wearing and are conveyed to muscle ring 10, first straining open feeding assembly 91 is installed on the top of conveying assembly 4 and is used for the end of muscle ring 10 to be strained open, second straining open feeding assembly 92 is installed on the top of second baseplate 2 and is parallelly arranged with first straining open feeding assembly 91, first straining open feeding assembly 91 and second straining open feeding assembly 92 respectively strain open the both ends of muscle ring 10, support assembly 6 is installed on the side of installation vertical board 3 facing second baseplate 2 and is used for supporting muscle ring 10, reference assembly 7 is installed on the side of installation vertical board 3 facing second baseplate 2 and is located the top of support assembly 6, thickness detection assembly 8 is installed on installation vertical board 3 and is located the top of support assembly 6. Conveying assembly 4 includes driving conveying wheel 41 and muscle ring conveying drive device 42, muscle ring conveying drive device 42 is installed on first baseplate 1, and driving conveying wheel 41 is installed on the output end of muscle ring conveying drive device 42.

[0027] In the embodiment, when muscle ring 10 is sleeved on driving conveying wheel 41 and conveying roller group 5, muscle ring conveying drive device 42 drives driving conveying wheel 41 to rotate muscle ring 10 and position muscle ring joint 11. Muscle ring conveying drive device 42 is a servo motor.

[0028] Referring to Figure 2 And Figure 3 As shown in the reference assembly 7 includes hand screw 71, linear guide 72, reference bracket 73 and reference plate 74, reference bracket 73 is slidably installed on the side of installation vertical board 3 through linear guide 72, hand screw 71 is installed on reference bracket 73, reference bracket 73 is locked on installation vertical board 3 through hand screw 71, reference plate 74 is installed on one end of reference bracket 73 and is used for limiting the side edge of muscle ring sleeved on driving conveying wheel 41 and conveying roller group 5, and the bottom of reference plate 74 extends a limiting block 75.

[0029] In the embodiment, the reference support 73 is movable forward and backward on the mounting vertical plate 3 through the linear guide rail 72 to adjust the position of the reference plate 74, and the reference support 73 is fixed on the mounting vertical plate 3 by tightening the hand screw 71 to fix the reference plate 74. The above structure design can be suitable for lateral positioning of the side edges of the muscle ring of different specifications, and has the advantage of strong universality.

[0030] With reference to Figure 3 As shown, the supporting assembly 6 includes first supporting plate moving driving devices 61, second supporting plate moving driving devices 62, first supporting plate supports 63, second supporting plate supports 64, first supporting plates 65 and second supporting plates 66. The first supporting plate moving driving devices 61 and the second supporting plate moving driving devices 62 are arranged side by side and fixed on the mounting vertical plate 3 through a first driving device mounting plate 67. The first supporting plate supports 63 are arranged on the output ends of the first supporting plate moving driving devices 61, and the second supporting plate supports 64 are arranged on the output ends of the second supporting plate moving driving devices 62. The first supporting plates 65 are arranged on the first supporting plate supports 63 and below the reference plate 74, and the second supporting plates 66 are arranged on the second supporting plate supports 64 and below the reference plate 74. The first supporting plates 65 are provided with limiting grooves 68.

[0031] In the embodiment, the limiting blocks 75 of the reference assembly 7 are used in conjunction with the limiting grooves 68. The limiting blocks 75 limit the first supporting plates 65 through the limiting grooves 68 to prevent the first supporting plates 65 from shifting during the supporting and moving of the muscle ring, which ensures the stable supporting and positioning of the muscle ring by the first supporting plates 65. The first supporting plate moving driving devices 61 and the second supporting plate moving driving devices 62 drive the first supporting plates 65 and the second supporting plates 66 to extend and rise to be connected with the reference plate 74. The first supporting plates 65 and the second supporting plates 66 support the muscle ring together, and the reference plate 74 limits the side edges of the muscle ring laterally, which realizes the automatic two-dimensional spatial positioning of the muscle ring, and has the advantages of high positioning efficiency and high positioning accuracy. The first supporting plate moving driving devices 61 and the second supporting plate moving driving devices 62 are both arranged as air cylinders.

[0032] With reference to Figures 4 to 5As shown, the thickness detection assembly 8 comprises a roller lifting driving device 81, a test lifting plate 82, a shaft seat 83, a bolt mounting plate 84, an adjusting bolt 85, an elastic member 86, a lever 87, a test rotating shaft 88, a roller 89, a swing feedback plate 80 and a displacement photoelectric sensor 801, the roller lifting driving device 81 is arranged on the mounting vertical plate 3, the test lifting plate 82 is arranged on the output end of the roller lifting driving device 81, the shaft seat 83 is arranged on the test lifting plate 82, the bolt mounting plate 84 is arranged on the top of the shaft seat 83, the adjusting bolt 85 is arranged on the bolt mounting plate 84, the lever 87 is rotationally connected with the bottom of the shaft seat 83 through the test rotating shaft 88, the roller 89 is rotationally arranged on the bottom of one end of the lever 87 and rolls on the outer surface of the bulging ring, the swing feedback plate 80 is transversely arranged on the top of the same end of the lever 87, one end of the elastic member 86 is connected and arranged with the lower end of the adjusting bolt 85, the other end of the elastic member 86 is connected and arranged with the other end of the lever 87, and the displacement photoelectric sensor 801 is located above the swing feedback plate 80 and is arranged on the mounting vertical plate 3 through a sensor mounting plate 802. The swing feedback plate 80 comprises a feedback plate body 803, and one end of the swing feedback plate 80 away from the shaft seat 83 is upwardly bent to form a bent portion 804.

[0033] In the embodiment, the roller lifting driving device 81 drives the roller 89 to descend to the upper surface of the bulging ring, the joint of the bulging ring moves with the rotation of the bulging ring on the conveying assembly 4 and the conveying roller set 5, and the joint of the bulging ring passes the bottom surface of the roller 89. When the joint of the bulging ring passes the bottom surface of the roller 89, the roller 89 rolls on the joint and jumps, thereby driving the swing feedback plate 80 to swing upward around the test rotating shaft 88. When the swing feedback plate 80 does not swing, the displacement photoelectric sensor 801 detects that the distance between the swing feedback plate 80 and the displacement photoelectric sensor 801 is constant. When the swing feedback plate 80 swings upward, the swing feedback plate 80 detects the position of the joint of the bulging ring by detecting the change of the distance between the bent portion 804 of the swing feedback plate 80 and the displacement photoelectric sensor 801, so as to improve the sensitivity and accuracy of the detection of the joint of the bulging ring. The swing feedback plate 80 is downwardly swung and reset by twisting the adjusting bolt 85, so as to increase the elastic tension of the elastic member 86 acting on the lever 87, speed up the downward swing and reset of the swing feedback plate 80, make the displacement photoelectric sensor 801 detect the distance between the swing feedback plate 80 and the displacement photoelectric sensor 801 more accurately and more efficiently. The roller lifting driving device 81 is a slide cylinder, and the elastic member 86 is a tension spring.

[0034] Reference Figure 6As shown, the first expansion feeding assembly 91 comprises a tendon feeding driving device 901, a tendon feeding horizontal moving plate 902, a tendon expansion driving device 903, a second driving device mounting plate 904, a tendon expansion fixing rod 905, a tensioning driving shaft 906, a tensioning rotating shaft 907, a tendon expansion tensioning rod 908 and a tendon limiting rod 909. The tendon feeding driving device 901 is arranged on the top of the conveying assembly 4. The tendon feeding horizontal moving plate 902 is arranged on the output end of the tendon feeding driving device 901. The tendon expansion driving device 903 is fixed on the tendon feeding horizontal moving plate 902 through the second driving device mounting plate 904. The tendon expansion fixing rod 905 is arranged horizontally on the front end of the tendon feeding horizontal moving plate 902. The middle part of the tendon expansion tensioning rod 908 is rotatably connected with the tendon feeding horizontal moving plate 902 through the tensioning rotating shaft 907. The output end of the tendon expansion driving device 903 is drivingly connected with one end of the tendon expansion tensioning rod 908 through the tensioning driving shaft 906. The other end of the tendon expansion tensioning rod 908 moves relative to the tendon expansion fixing rod 905 to expand or loosen the end of the tendon ring. The tendon limiting rod 909 is arranged vertically on the front end of the tendon expansion fixing rod 905 and is used for laterally positioning the expanded tendon ring. In this embodiment, the tendon feeding driving device 901 is a rodless cylinder, and the tendon expansion driving device 903 is a cylinder.

[0035] Referring to Figure 1 , Figure 2 and Figure 6 , the structure and working principle of the second expansion feeding assembly 92 are the same as those of the first expansion feeding assembly 91.

[0036] In the embodiment, when the elastic ring enters the working position of the supporting assembly 6, the supporting assembly 6 supports and laterally limits the elastic ring, the elastic ring loading driving device 901 drives the elastic ring opening fixed rod 905 and the elastic ring opening expansion rod 908 to insert into one end of the elastic ring, the elastic ring opening driving device 903 drives the elastic ring opening expansion rod 908 and the elastic ring opening fixed rod 905 to open and open one end of the elastic ring, the elastic ring limiting rod 909 blocks the side of the elastic ring to realize the lateral positioning of the elastic ring on the elastic ring opening fixed rod 905; the first opening loading assembly 91 and the second opening loading assembly 92 are inserted into two ends of the elastic ring and open the elastic ring together, the elastic ring loading driving device 901 drives the elastic ring opening fixed rod 905 and the elastic ring opening expansion rod 908 to retreat (i.e. move to the direction of the conveying roller group 5 and the driving conveying wheel 41) to drive the elastic ring to be sleeved on the conveying roller group 5 and the driving conveying wheel 41, the elastic ring opening driving device 903 drives the elastic ring opening expansion rod 908 and the elastic ring opening fixed rod 905 to close, the elastic ring loading driving device 901 drives the elastic ring opening expansion rod 908 and the elastic ring opening fixed rod 905 to exit the elastic ring, and the conveying assembly 4 drives the elastic ring to rotate, when the thickness detection assembly 8 detects the joint of the elastic ring, the conveying assembly 4 continues to convey the joint of the elastic ring to the specified position according to the set requirement, which realizes automatic positioning of the joint of the elastic ring and has the advantages of accurate positioning and high positioning efficiency.

[0037] The overall structure design realizes a series of operations such as automatic supporting of the elastic ring, automatic lateral limiting of the elastic ring, automatic opening of the elastic ring, automatic loading and conveying of the elastic ring, automatic detection of the joint of the elastic ring and automatic positioning of the joint of the elastic ring, and the process of the series of operations on the elastic ring does not need manual participation, so that the automatic work and high efficiency are realized, the labor intensity of workers and the labor cost of enterprises are greatly reduced, and the production cost is reduced, the joint of the elastic ring has the advantages of high positioning precision and high positioning efficiency, and the problems of low work efficiency, high labor intensity of workers, high labor cost of enterprises, low positioning efficiency of the joint of the elastic ring and inability to meet the requirements of semi-automatic production or automatic production caused by the traditional operations such as manual opening of the elastic ring, manual sleeving of the opened elastic ring on the sewing frame and manual finding of the starting position (i.e. the joint) of the elastic ring are effectively solved.

[0038] The above embodiment is only an example of the utility model and is not used to limit the implementation and right range of the utility model, and any technical scheme same as or equivalent to the content described in the utility model patent claim should be included in the protection range of the utility model.

Claims

1. A mechanism for automatic positioning of the loading of the muscle, characterized in that: The application relates to a device for stretching and feeding a rubber ring, which comprises a first base, a second base, a mounting vertical plate, a conveying assembly for conveying the rubber ring, a conveying roller set for conducting the rubber ring, a supporting assembly for supporting the rubber ring, a reference assembly for laterally positioning the side edges of the rubber ring, a thickness detection assembly for detecting the joint position of the rubber ring, a first stretching and feeding assembly and a second stretching and feeding assembly for respectively stretching the two end portions of the rubber ring, the first base and the second base are oppositely arranged, the mounting vertical plate is vertically arranged on the first base, the conveying assembly is arranged on the first base and located on the side of the mounting vertical plate away from the second base, the conveying roller set is horizontally arranged on the front side of the second base, the conveying assembly and the conveying roller set jointly convey the rubber ring by penetrating the rubber ring, the first stretching and feeding assembly is arranged on the top of the conveying assembly and used for stretching one end portion of the rubber ring, the second stretching and feeding assembly is arranged on the top of the second base and arranged in parallel with the first stretching and feeding assembly, the first stretching and feeding assembly and the second stretching and feeding assembly respectively stretch the two end portions of the rubber ring, the supporting assembly is arranged on the side of the mounting vertical plate facing the second base and used for supporting the rubber ring, the reference assembly is arranged on the side of the mounting vertical plate facing the second base and located above the supporting assembly, and the thickness detection assembly is arranged on the mounting vertical plate and located above the supporting assembly.

2. The automatic positioning mechanism for muscle stretching and feeding according to claim 1, characterized in that: The reference assembly comprises a hand screw, a linear guide rail, a reference support and a reference plate, the reference support is slidably arranged on the side of the mounting vertical plate through the linear guide rail, the hand screw is arranged on the reference support, the reference support is locked on the mounting vertical plate through the hand screw, the reference plate is arranged on one end of the reference support and used for limiting the side edges of the rubber ring sleeved on the driving conveying wheel and the conveying roller set, and a limiting block is arranged on the bottom of the reference plate.

3. The automatic positioning mechanism for muscle stretching and loading according to claim 1, characterized in that: The supporting assembly comprises a first supporting plate moving driving device, a second supporting plate moving driving device, a first supporting plate support, a second supporting plate support, a first supporting plate and a second supporting plate, the first supporting plate moving driving device and the second supporting plate moving driving device are arranged in parallel and fixed on the mounting vertical plate through a first driving device mounting plate, the first supporting plate support is arranged on the output end of the first supporting plate moving driving device, the second supporting plate support is arranged on the output end of the second supporting plate moving driving device, the first supporting plate is arranged on the first supporting plate support and located below the reference plate, the first supporting plate is provided with a limiting groove, and the second supporting plate is arranged on the second supporting plate support and located below the reference plate.

4. The automatic positioning mechanism for muscle stretching and loading according to claim 1, characterized in that: The thickness detection assembly comprises a roller lifting driving device, a test lifting plate, an axle seat, a bolt mounting plate, an adjusting bolt, an elastic member, a lever, a test rotating shaft, a roller, a swing feedback plate and a displacement photoelectric sensor, the roller lifting driving vertical device is arranged on the mounting vertical plate, the test lifting plate is arranged on the output end of the roller lifting driving device, the axle seat is arranged on the test lifting plate, the bolt mounting plate is arranged on the top of the axle seat, the adjusting bolt is arranged on the bolt mounting plate, the lever is rotationally connected with the bottom of the axle seat through the test rotating shaft, the roller is rotationally arranged at the bottom of one end of the lever and rolls on the outer surface of the expansion tendon ring, the swing feedback plate is transversely arranged on the top of the same end of the lever, one end of the elastic member is connected and mounted with the lower end of the adjusting bolt, the other end of the elastic member is connected and mounted with the other end of the lever, and the displacement photoelectric sensor is located above the swing feedback plate and is arranged on the mounting vertical plate through a sensor mounting plate. The swing feedback plate comprises a feedback plate body, and one end of the swing feedback plate away from the axle seat is upwardly bent to form a bent part.

5. The automatic positioning mechanism for muscle stretching and loading according to claim 1, characterized in that: The first expansion feeding assembly comprises an expansion tendon feeding driving device, an expansion tendon feeding transverse moving plate, an expansion tendon expansion driving device, a second driving device mounting plate, an expansion tendon expansion fixing rod, a tensioning and releasing driving shaft, a tensioning and releasing rotating shaft, an expansion tendon expansion tensioning and releasing lever and an expansion tendon limiting rod, the expansion tendon feeding driving device is arranged on the top of the conveying assembly, the expansion tendon feeding transverse moving plate is arranged on the output end of the expansion tendon feeding driving device, the expansion tendon expansion driving device is fixed on the expansion tendon feeding transverse moving plate through the second driving device mounting plate, the expansion tendon expansion fixing rod is transversely arranged on the front end of the expansion tendon feeding transverse moving plate, the middle part of the expansion tendon expansion tensioning and releasing lever is rotationally connected with the expansion tendon feeding transverse moving plate through the tensioning and releasing rotating shaft, the output end of the expansion tendon expansion driving device is transmissionally connected with one end of the expansion tendon expansion tensioning and releasing lever through the tensioning and releasing driving shaft, the other end of the expansion tendon expansion tensioning and releasing lever moves relative to the expansion tendon expansion fixing rod to expand or release the end of the expansion tendon ring, and the expansion tendon limiting rod is vertically arranged on the front end of the expansion tendon expansion fixing rod and is used for laterally positioning the expanded expansion tendon ring.

6. The automatic positioning mechanism for muscle stretching and loading according to claim 5, characterized in that: The structure and working principle of the second expansion feeding assembly are the same as those of the first expansion feeding assembly.

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