A fabric air permeability detection device

Abstract

The present invention relates to the field of air permeability testing facilities, and in particular to a fabric air permeability testing device, comprising a carrier, a lifting member is installed at the middle of the front end of the carrier, a permeability testing member is installed at the front end of the lifting member, concave chucks are installed at both edges of the front end of the carrier, a T-shaped guide rail is fixedly installed between the lower rear edges of the two concave chucks, a slider is slidably installed on the outer surface of the T-shaped guide rail, a guide block is elastically provided at the upper end of the slider, a barrel rod is rotatably installed at the front end of the slider and the front end of the guide block, a sticking barrel is sleeved on the outer surface of the barrel rod, a T-shaped chuck is provided just above the concave chuck, and a pressing member is provided between the T-shaped chuck and the carrier. The present invention ensures the accuracy of air permeability testing, while ensuring the cleanliness of the working environment, and also facilitates the taking and placing of fabrics.

Description

Technical Field

[0001] The invention relates to the field of air permeability testing facilities, and in particular to a fabric air permeability testing device. Background Art

[0002] Fabric is the material used to make clothing. As one of the three elements of clothing, fabric can not only interpret the style and characteristics of clothing, but also directly affect the color and shape of clothing. The air permeability of fabric greatly affects people's comfort when using it. When testing the air permeability of fabric, since the fabric has just been produced, a large amount of fluff and hair balls will be attached to its surface, resulting in the fluff blocking the pores of the fabric during the test, thereby affecting the accuracy of the air permeability test. At the same time, some fluff will fly with the wind and spread into the working environment, causing environmental pollution. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a fabric air permeability detection device.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a fabric air permeability detection device, including a carrier, a lifting member is installed in the middle of the front end of the carrier, a permeability detection member is installed at the front end of the lifting member, concave chucks are installed at the edges of both sides of the front end of the carrier, a T-shaped guide rail is fixedly installed between the rear edges of the lower ends of the two concave chucks, a slider is slidably installed on the outer surface of the T-shaped guide rail, a guide block is elastically provided on the upper end of the slider, a barrel rod is rotatably installed on the front end of the slider and the front end of the guide block, a sticking barrel is sleeved on the outer surface of the barrel rod, a T-shaped chuck is provided just above the concave chuck, and a pressing piece is provided between the T-shaped chuck and the carrier.

[0005] Preferably, a guide frame is slidably installed on the outer side of the guide block, the lower end of the guide frame is fixed to the upper end of the slider, a pressure column is fixedly installed in the middle of the upper end of the guide block, the pressure column passes through the upper end of the guide frame, the pressure column and the guide frame are slidably matched, a No. 2 spring is wound around the outer side of the pressure column, the lower end of the No. 2 spring is fixed to the upper end of the guide frame, and the upper end of the No. 2 spring is fixed to the upper end of the pressure column.

[0006] Preferably, a fixing frame is fixedly installed in the middle part of the lower end of the concave chuck, and the end of the fixing frame is fixed to the carrier, and two fixing caps are coaxially provided on the outer surface of the tube rod, and the two fixing caps are clamped on the two ends of the sticky tube, the rear fixing cap is fixed to the tube rod, and the front fixing cap is fixed to the tube rod through a thread, and the pressing member includes a servo push cylinder fixedly installed on the inner side of the carrier, and a concave pressing frame is fixedly installed on the output end of the servo push cylinder, and the end of the concave pressing frame is fixed to the middle part of the upper end of the T-shaped chuck, and a guide column is fixedly installed at the upper end corner of the concave pressing frame, and a guide seat is fitted on the outer surface of the guide column, and the guide seat is fixed to the carrier.

[0007] Preferably, the lifting member includes a threaded rod rotatably mounted at the middle part of the front end of the carrier, a lifting seat is screwed onto the outer surface of the threaded rod, an extension frame is fixedly mounted at the front end of the lifting seat, limiting rods are slidably mounted on both sides of the extension frame, a pressure plate is fixedly mounted between the lower ends of the two limiting rods, a pressure wheel is mounted on the upper end of the pressure column, the pressure wheel is attached to the lower end of the pressure plate, and limiting frames are fixedly mounted on the upper end of the T-shaped guide rail near the edges on both sides.

[0008] Preferably, a No. 1 spring is wound around the outer side of the limiting rod, the lower end of the No. 1 spring is fixed to the upper end of the pressure plate, the upper end of the No. 1 spring is fixed to the lower end of the extension frame, the upper end of the limiting rod is coaxially inlaid with a limiting cap, the limiting cap is fitted to the upper end of the extension frame, guide rods are provided on both sides of the threaded rod, both ends of the guide rods are fixed to the carrier, the lifting seat is slidably installed on the guide rods, a servo motor is fixedly installed on the upper end of the carrier, and the output end of the servo motor is fixed to the threaded rod.

[0009] Preferably, the air permeability detection component includes a wind tube fixedly mounted on the front end of the extending frame, a detection bucket is provided directly below the wind tube, an airflow sensor is installed through the detection bucket, a guide edge frame is fixedly mounted at the lower edge of the front end of the carrier, a connecting frame is fitted on the outer surface of the guide edge frame, and one end of the connecting frame is fixed to the detection bucket.

[0010] Preferably, a lower tooth plate is fixedly mounted on the other end of the connecting frame, a gear is meshed on the side of the lower tooth plate, an upper tooth plate is meshed on the side of the gear, the upper end of the upper tooth plate is fixed to the lifting seat, a shift shaft is coaxially penetrated through the middle of the gear, and the shift shaft is rotatably connected to the carrier.

[0011] Preferably, a driving motor is fixedly installed inside the air duct, a fan blade is fixedly installed at the output end of the driving motor, a toggle frame is fixedly installed at the front edge of the side of the toggle shaft, a dial wheel is installed at the end of the toggle frame, a toggle frame is fixedly installed at the rear end of the slider, and the dial wheel fits inside the toggle frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When the lifting seat is working, the upper tooth plate, gear, and lower tooth plate drive the air cylinder and the detection bucket to gather together. The pressure plate will move down synchronously driven by the lifting seat to press the pressure wheel through the pressure plate, and then press the upper sticking cylinder. At this time, the guide block slides in the guide frame to assist the upper sticking cylinder to move down, so that the two sticking cylinders can fit the upper and lower sides of the fabric. At the same time, the rotating gear drives the toggle frame at the end of the toggle shaft to rotate. At this time, the dial wheel on the toggle frame moves in the toggle frame to toggle the toggle frame so that the two sticking cylinders can continuously reciprocate left and right. At this time, the slider slides on the T-shaped guide rail to assist the sticking cylinder movement, so as to use the reciprocating motion of the two to remove the fluff, hair balls, etc. attached to the upper and lower sides of the fabric to avoid affecting the effect of the air permeability test, thereby ensuring the accuracy of the air permeability test, and at the same time avoiding the phenomenon of fluff flying around, effectively ensuring the cleanliness of the working environment.

[0014] 2. Under the action of the No. 2 spring, the guide block can be lifted, and then the upper sticking cylinder can be lifted, so that a certain space can be left between the two sticking cylinders to avoid the fabric being affected by the sticking of the sticking cylinder when taking and placing, causing inconvenience in taking and placing, thereby facilitating the taking and placing of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a fabric air permeability detection device of the present invention;

[0016] Figure 2 A fabric air permeability detection device of the present invention Figure 1 A magnified view of middle;

[0017] Figure 3 It is a schematic diagram of the sticking part of a fabric air permeability detection device of the present invention;

[0018] Figure 4 A fabric air permeability detection device of the present invention Figure 3 Enlarged view of middle B;

[0019] Figure 5 This is an internal view of a wind tube of a fabric air permeability detection device of the present invention;

[0020] Figure 6 It is a schematic diagram of a toggle frame of a fabric air permeability detection device of the present invention.

[0021] In the figure: 1, carrier; 2, T-shaped guide rail; 3, guide seat; 4, servo push cylinder; 5, air cylinder; 6, sticking cylinder; 7, guide column; 8, toggle frame; 9, concave pressing frame; 10, T-shaped chuck; 11, fixing frame; 12, concave chuck; 13, connecting frame; 14, detection bucket; 15, air flow sensor; 16, guide rod; 17, servo motor; 18, lifting seat; 19, threaded rod; 20, limit cap; 21, limit Rod; 22. Spring No. 1; 23. Upper tooth plate; 24. Gear; 25. Pressure plate; 26. Toggle shaft; 27. Guide edge frame; 28. Lower tooth plate; 29. ​​Toggle frame; 30. Pulley; 31. Limit frame; 32. Slider; 33. Guide block; 34. Fan blade; 35. Rod; 36. Fixing cap; 37. Guide frame; 38. Spring No. 2; 39. Pressure column; 40. Pressure wheel; 41. Drive motor; 42. Extension frame. DETAILED DESCRIPTION

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0023] like Figure 1-Figure 6 The fabric air permeability detection device shown in the figure comprises a carrier 1, a lifting member is installed at the middle of the front end of the carrier 1, a permeability detection member is installed at the front end of the lifting member, concave chucks 12 are installed at the edges of both sides of the front end of the carrier 1, the T-shaped chuck 10 and the concave chuck 12 play the role of clamping and fixing the fabric, a T-shaped guide rail 2 is fixedly installed between the rear edges of the lower ends of the two concave chucks 12, a slider 32 is slidably installed on the outer surface of the T-shaped guide rail 2, and the T-shaped guide rail 2 and the slider 32 play the role of linearly guiding the adhesive cylinder 6. A guide block 33 is elastically provided at the upper end of the slider 32, and the guide block 33 and the slider 32 play the role of supporting the barrel rod 35. The front ends of the slider 32 and the guide block 33 are rotatably installed with the barrel rod 35, and the outer surface of the barrel rod 35 is sleeved with a sticking barrel 6, and the barrel rod 35 plays the role of supporting the sticking barrel 6. A T-shaped clamp 10 is provided just above the concave clamp 12, and a pressing piece is provided between the T-shaped clamp 10 and the carrier 1. The shape design of the T-shaped clamp 10 and the concave clamp 12 can improve the fixing force on the fabric.

[0024] A guide frame 37 is slidably installed on the outer side of the guide block 33, and the lower end of the guide frame 37 is fixed to the upper end of the slider 32. The guide frame 37 and the guide block 33 play a role in guiding the upper sticking tube 6. A pressure column 39 is fixedly installed in the middle of the upper end of the guide block 33. The pressure column 39 passes through the upper end of the guide frame 37, and the pressure column 39 slides with the guide frame 37. The pressure column 39 plays a role in pressing the guide block 33. A No. 2 spring 38 is wound around the outer side of the pressure column 39, and the lower end of the No. 2 spring 38 is fixed to the upper end of the guide frame 37. The No. 2 spring 38 plays a role in resetting the upper sticking tube 6 after it has moved downward, and the upper end of the No. 2 spring 38 is fixed to the upper end of the pressure column 39.

[0025] A fixing frame 11 is fixedly installed in the middle of the lower end of the concave chuck 12, and the end of the fixing frame 11 is fixed to the carrier 1, and the fixing frame 11 plays a role in fixing the concave chuck 12. Two fixing caps 36 are coaxially arranged on the outer surface of the barrel rod 35, and the two fixing caps 36 are clamped at the two ends of the sticking barrel 6. The fixing caps 36 play a role in fixing the sticking barrel 6. The rear fixing cap 36 is fixed to the barrel rod 35, and the front fixing cap 36 is fixed to the barrel rod 35 through a thread, and the front fixing cap 36 can be screwed down. In order to disassemble and replace the sticking tube 6, the lower pressing part includes a servo push cylinder 4 fixedly installed on the inner side of the carrier 1, and a concave pressing frame 9 is fixedly installed on the output end of the servo push cylinder 4. The end of the concave pressing frame 9 is fixed to the middle part of the upper end of the T-shaped clamp 10. The servo push cylinder 4 drives the T-shaped clamp 10 to move downward. A guide column 7 is fixedly installed at the upper end corner of the concave pressing frame 9. A guide seat 3 is fitted on the outer surface of the guide column 7. The guide column 7 and the guide seat 3 guide the T-shaped clamp 10, and the guide seat 3 is fixed to the carrier 1.

[0026] The lifting member includes a threaded rod 19 rotatably mounted on the middle part of the front end of the carrier 1, and a lifting seat 18 is screwed onto the outer surface of the threaded rod 19. The threaded rod 19 drives the lifting seat 18 to move up and down. An extension frame 42 is fixedly mounted on the front end of the lifting seat 18, and limiting rods 21 are slidably mounted on both sides of the extension frame 42. A pressure plate 25 is fixedly mounted between the lower ends of the two limiting rods 21, and the limiting rod 21 serves as a connecting guide. A pressure wheel 40 is mounted on the upper end of the pressure column 39, and the pressure wheel 40 is attached to the lower end of the pressure plate 25. The pressure wheel 40 serves to reduce wear. A limiting frame 31 is fixedly mounted on the upper end of the T-shaped guide rail 2 near the edges on both sides, and the limiting frame 31 serves to limit the downward movement height of the pressure plate 25.

[0027] A No. 1 spring 22 is wound around the outer side of the limiting rod 21, and the lower end of the No. 1 spring 22 is fixed to the upper end of the pressure plate 25. The No. 1 spring 22 plays a role in offsetting the downward movement force of the lifting seat 18 when the pressure plate 25 is limited. The upper end of the No. 1 spring 22 is fixed to the lower end of the extension frame 42. The upper end of the limiting rod 21 is coaxially inlaid with a limiting cap 20. The limiting cap 20 plays a role in preventing the limiting rod 21 from detaching. The limiting cap 20 is attached to the upper end of the extension frame 42. Guide rods 16 are provided on both sides of the threaded rod 19. The two ends of the guide rod 16 are fixed to the carrier 1. The guide rod 16 plays a role in linearly guiding the lifting seat 18. The lifting seat 18 is slidably installed on the guide rod 16. A servo motor 17 is fixedly installed on the upper end of the carrier 1. The servo motor 17 plays a role in driving the threaded rod 19 to rotate, and the output end of the servo motor 17 is fixed to the threaded rod 19.

[0028] The air permeability detection component includes a wind tube 5 fixedly installed on the front end of the extending frame 42. The wind tube 5 serves to support the driving motor 41. A detection bucket 14 is arranged directly below the wind tube 5. The detection bucket 14 serves to collect wind that passes through the fabric. An airflow sensor 15 is installed through the detection bucket 14. Since detecting the airflow through the airflow sensor 15 is a prior art and has been widely used, it is not elaborated in detail here. A guide edge frame 27 is fixedly installed at the lower edge of the front end of the carrier 1. The guide edge frame 27 and the connecting frame 13 serve to guide the detection bucket 14. The connecting frame 13 is fitted on the outer surface of the guide edge frame 27, and one end of the connecting frame 13 is fixed to the detection bucket 14.

[0029] A lower toothed plate 28 is fixedly mounted on the other end of the connecting frame 13, and a gear 24 is meshed on the side of the lower toothed plate 28. The gear 24 allows the lower toothed plate 28 to move upward. An upper toothed plate 23 is meshed on the side of the gear 24. The upper end of the upper toothed plate 23 is fixed to the lifting seat 18, and the upper toothed plate 23 allows the gear 24 to rotate. A toggle shaft 26 is coaxially penetrated and inlaid in the middle of the gear 24. The toggle shaft 26 connects the gear 24 and is rotationally connected to the carrier 1.

[0030] A driving motor 41 is fixedly installed inside the air duct 5, and a fan blade 34 is fixedly installed at the output end of the driving motor 41. The driving motor 41 plays a role in driving the fan blade 34 to rotate. A toggle frame 8 is fixedly installed at the front edge of the side of the toggle shaft 26, and a dial wheel 30 is installed at the end of the toggle frame 8. A toggle frame 29 is fixedly installed at the rear end of the slider 32, and the dial wheel 30 fits into the inside of the toggle frame 29. When the gear 24 rotates to drive the air duct 5 and the detection bucket 14 to gather together, it will also drive the toggle frame 8 at the end of the toggle shaft 26 to rotate. At this time, the dial wheel 30 on the toggle frame 8 moves in the toggle frame 29 to toggle the toggle frame 29, so that the two sticking cylinders 6 can continuously reciprocate left and right. At this time, the slider 32 slides on the T-shaped guide rail 2 to assist the movement of the sticking cylinder 6, so as to use the two reciprocating movements to stick and remove the fluff, hair balls, etc. attached to the upper and lower sides of the fabric.

[0031] During inspection, the worker spreads the fabric flat and places it between the two concave chucks 12. Then the servo push cylinder 4 works to drive the T-shaped chuck 10 to move downward. At this time, the guide column 7 slides in the guide seat 3 to assist the T-shaped chuck 10 to move downward, so as to press the two ends of the fabric between the T-shaped chuck 10 and the concave chuck 12 for fixation. After fixation, the fabric is loosened, and then the servo motor 17 works to drive the threaded rod 19 to rotate, so that the lifting seat 18 screwed on the threaded rod 19 can move downward, thereby driving the wind tube 5 to move downward. At this time, the upper tooth plate 23 moves downward synchronously under the drive of the lifting seat 18 to drive the gear 24 to rotate , so that the lower tooth plate 28 meshing with the gear 24 can move up, thereby driving the detection bucket 14 to move up. At this time, the connecting frame 13 slides on the guide edge frame 27 to assist the detection bucket 14 to move up, so that the wind tube 5 and the detection bucket 14 can be gathered together. In this process, the pressing plate 25 will move down synchronously under the drive of the lifting seat 18, so as to press the pressing wheel 40 through the pressing plate 25, and then press the upper sticking tube 6. At this time, the guide block 33 slides in the guide frame 37 to assist the upper sticking tube 6 to move down, so that the two sticking tubes 6 can fit the upper and lower surfaces of the fabric. At this time, the limit frame 31 presses the pressing plate 2 5 is supported and limited, so that the pressure plate 25 cannot move further downward, and then the lifting seat 18 continues to move downward. At this time, the limiting rod 21 slides on the extension frame 42, and the No. 1 spring 22 contracts and deforms, thereby ensuring that the lifting seat 18 moves downward normally without being hindered by the pressure plate 25. When the gear 24 rotates to drive the wind tube 5 and the detection bucket 14 to gather together, it will also drive the toggle frame 8 at the end of the toggle shaft 26 to rotate. At this time, the dial wheel 30 on the toggle frame 8 moves in the toggle frame 29 to toggle the toggle frame 29, so that the two sticky cylinders 6 can continuously reciprocate left and right. At this time, the slider 32 is in the T-shaped The guide rail 2 slides to assist the sticking cylinder 6 in moving, so as to utilize the reciprocating motion to remove the fluff, hair balls, etc. attached to the upper and lower sides of the fabric. Then the air duct 5 and the detection bucket 14 continue to gather together to clamp the fabric between the air duct 5 and the detection bucket 14. Then the driving motor 41 works to drive the fan blades 34 to generate wind force to blow on the fabric, so that the wind can pass through the fabric into the detection bucket 14. At this time, the airflow sensor 15 detects the airflow in the detection bucket 14. If the airflow volume is large, it means that the fabric has good air permeability. On the contrary, if the airflow volume is small, it means that the fabric has poor air permeability.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A fabric air permeability detection device, comprising a carrier (1), characterized in that: A lifting member is installed at the middle of the front end of the carrier (1), and a permeability detection member is installed at the front end of the lifting member. Concave chucks (12) are installed at the edges of both sides of the front end of the carrier (1). A T-shaped guide rail (2) is fixedly installed between the lower rear edges of the two concave chucks (12). A slider (32) is slidably installed on the outer surface of the T-shaped guide rail (2). A guide block (33) is elastically provided at the upper end of the slider (32). A barrel rod (35) is rotatably installed at the front end of the slider (32) and the front end of the guide block (33). A sticking barrel (6) is sleeved on the outer surface of the barrel rod (35). A T-shaped chuck (10) is provided just above the concave chuck (12), and a pressing member is provided between the T-shaped chuck (10) and the carrier (1). The air permeability detection component comprises an air cylinder (5) fixedly mounted on the front end of the extension frame (42); a detection bucket (14) is arranged directly below the air cylinder (5); an air flow sensor (15) is installed through the detection bucket (14); a guide edge frame (27) is fixedly mounted on the lower edge of the front end of the carrier (1); a connecting frame (13) is fitted on the outer surface of the guide edge frame (27); one end of the connecting frame (13) is fixed to the detection bucket (14); A lower toothed plate (28) is fixedly mounted on the other end of the connecting frame (13), a gear (24) is meshed on the side of the lower toothed plate (28), an upper toothed plate (23) is meshed on the side of the gear (24), an upper end of the upper toothed plate (23) is fixed to the lifting seat (18), a shifting shaft (26) is coaxially penetrated and inlaid in the middle of the gear (24), and the shifting shaft (26) is rotatably connected to the carrier (1); A driving motor (41) is fixedly mounted inside the wind tube (5), a fan blade (34) is fixedly mounted on the output end of the driving motor (41), a toggle frame (8) is fixedly mounted on the front edge of the side of the toggle shaft (26), a dial wheel (30) is mounted on the end of the toggle frame (8), a toggle frame (29) is fixedly mounted on the rear end of the slider (32), and the dial wheel (30) is fitted inside the toggle frame (29); A guide frame (37) is slidably mounted on the outer side of the guide block (33), the lower end of the guide frame (37) is fixed to the upper end of the slider (32), a pressure column (39) is fixedly mounted in the middle of the upper end of the guide block (33), the pressure column (39) extends through the upper end of the guide frame (37), the pressure column (39) and the guide frame (37) are slidably matched, a second spring (38) is wound around the outer side of the pressure column (39), the lower end of the second spring (38) is fixed to the upper end of the guide frame (37), and the upper end of the second spring (38) is fixed to the upper end of the pressure column (39); A fixing frame (11) is fixedly installed at the middle part of the lower end of the concave chuck (12), and the end of the fixing frame (11) is fixed to the carrier (1). Two fixing caps (36) are coaxially arranged on the outer surface of the tube rod (35), and the two fixing caps (36) are clamped on the two ends of the sticking tube (6). The fixing cap (36) at the rear is fixed to the tube rod (35), and the fixing cap (36) at the front is fixed to the tube rod (35) through threads. The pressing member includes a servo push cylinder (4) fixedly installed on the inner side of the carrier (1), and a concave pressing frame (9) is fixedly installed at the output end of the servo push cylinder (4). The end of the concave pressing frame (9) is fixed to the middle part of the upper end of the T-shaped chuck (10). A guide column (7) is fixedly installed at the upper corner of the concave pressing frame (9), and a guide seat (3) is fitted on the outer surface of the guide column (7), and the guide seat (3) is fixed to the carrier (1). The lifting member comprises a threaded rod (19) rotatably mounted at the middle of the front end of the carrier (1); a lifting seat (18) is screwed onto the outer surface of the threaded rod (19); a projection frame (42) is fixedly mounted at the front end of the lifting seat (18); limiting rods (21) are slidably mounted on both sides of the projection frame (42); a pressure plate (25) is fixedly mounted between the lower ends of the two limiting rods (21); a pressure wheel (40) is mounted at the upper end of the pressure column (39); the pressure wheel (40) is fitted to the lower end of the pressure plate (25); and limiting frames (31) are fixedly mounted at the upper end of the T-shaped guide rail (2) near the edges of both sides; A No. 1 spring (22) is wound around the outer side of the limiting rod (21), the lower end of the No. 1 spring (22) is fixed to the upper end of the pressure plate (25), the upper end of the No. 1 spring (22) is fixed to the lower end of the extension frame (42), the upper end of the limiting rod (21) is coaxially inlaid with a limiting cap (20), the limiting cap (20) is fitted to the upper end of the extension frame (42), guide rods (16) are provided on both sides of the threaded rod (19), the two ends of the guide rod (16) are fixed to the carrier (1), the lifting seat (18) is slidably mounted on the guide rod (16), and a servo motor (17) is fixedly mounted on the upper end of the carrier (1), and the output end of the servo motor (17) is fixed to the threaded rod (19).

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