A finished product testing machine for nylon elastic yarn processing

Abstract

This invention discloses a finished product testing machine for nylon elastic yarn processing, relating to the field of nylon testing technology. It includes a cabinet with an operating table fixedly mounted on its top; a press positioned on top of the operating table, used to apply pressure to the elastic yarn; a detector for detecting and recording parameters and data during press operation; a groove formed on the bottom of the inner wall of the operating table; a drive device positioned on the inner wall of the groove, used to drive itself to move within the groove; a hollow cylinder fixedly mounted on top of the drive device; and a collar rotatably mounted on the circumference of the hollow cylinder. Movement of the fixed device away from the detector stretches and straightens the elastic yarn, thus fixing and straightening it, improving the reliability of the measurement.

Description

Technical Field

[0001] This invention relates to the field of nylon testing technology, specifically to a finished product testing machine for nylon elastic yarn processing. Background Technology

[0002] Nylon elastic yarn is a synthetic fiber material with high strength, abrasion resistance and a certain degree of elasticity. It is widely used in clothing, sports equipment and medical products. In order to ensure that the processed nylon elastic yarn meets the predetermined performance standards, it is necessary to conduct strict testing.

[0003] Patent publication number CN218726099U relates to a finished product testing machine for nylon elastic yarn processing, comprising: a base and a machine body; the base has the machine body fixedly connected to its upper end; a testing structure including a tensile testing instrument fixedly connected to the upper end of the base; a connecting rod fixedly connected to the side wall of the tensile testing instrument; a first moving rod fixedly connected to the end of the connecting rod away from the tensile testing instrument; nylon yarn wound on the surface of the first moving rod; the bottom end of the first moving rod inserted into a first sliding groove located inside the base; and a stabilizing structure including a support rod fixedly connected to the lower end of the base. This patent enables tensile testing of nylon elastic yarn, and the device remains stable during testing, avoiding inaccurate readings due to overall device instability, thus improving the practicality and stability of the device.

[0004] The aforementioned patent enables tensile testing of nylon elastic yarn, and the device can maintain stability during testing, avoiding inaccurate readings due to overall device instability, thus improving the practicality and stability of the device. However, during testing, after the elastic yarn is fixed, it is necessary to stretch the elastic yarn as much as possible to ensure that the elastic yarn is in a stretched state and taut. Otherwise, the measurement structure of the elastic yarn during testing will be affected, resulting in inaccurate measurement results. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a finished product inspection machine for nylon elastic yarn processing, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a finished product testing machine for nylon elastic yarn processing, comprising a cabinet, wherein an operating table is fixedly installed on the top of the cabinet;

[0007] A press, which is mounted on top of an operating table, is used to apply pressure to elastic wires;

[0008] A detector, used to detect and record parameters and data during the operation of the press;

[0009] The top of the cabinet is equipped with a fixing device, which includes: a hollow cylinder, a collar, a pull rod, a threaded rod, a fixing plate, and an arc plate. The bottom of the inner wall of the worktable is provided with a sliding groove.

[0010] A driving device is disposed on the inner wall of the slide groove, and the driving device is used to drive itself to move within the inner wall of the slide groove.

[0011] The hollow cylinder is fixedly installed on the top of the driving device. The collar is rotatably installed on the circumferential surface of the hollow cylinder. The pull rod is fixedly installed on the circumferential surface of the collar. The threaded rod is threadedly installed on the inner wall of the collar. The fixing plate is fixedly installed on the end of the threaded rod near the collar. A first spring is provided on the surface of the threaded rod. The arc plate is connected to the fixing plate through the first spring. When the fixing device on the side away from the detector moves, it will cause the elastic wire to be stretched and straightened, so that the elastic wire is fixed and straightened.

[0012] According to the above technical solution, the fixing device further includes: a triangular block, a telescopic rod, and a connector. The fixing device is provided in two sets. The free end of the telescopic rod is fixedly installed on the circumferential surface of the drive device on the side away from the detector, and the fixed end of the telescopic rod is fixedly installed on the circumferential surface of the drive device on the side close to the detector. The triangular block is fixedly installed on the side of the arc-shaped plate close to the fixed plate. The side of the fixed plate close to the triangular block is provided with a square groove. The connector is fixedly installed on the circumferential surface of the collar. After the arc-shaped plate is tightly attached to the elastic wire, as the fixed plate continues to move, the triangular block will contact the square groove and be stuck into the inner wall of the square groove, so that when the elastic wire is under pressure, the arc-shaped plate cannot rotate to the top. The top of the cabinet is provided with a limiting device for fixing the fixing device and a protective device for protecting the fixing device in operation.

[0013] According to the above technical solution, the triangular block is in contact with the square groove, and the detector is electrically connected to the press, thereby limiting the position of the triangular block through the square groove.

[0014] According to the above technical solution, the limiting device includes: a square box, a sliding block, a U-shaped rod, a one-way block, a sliding plate, a rotating block, a stop block, and an inclined block. The square box is fixedly installed on the top of the operating table. The sliding block is slidably installed inside the square box. The U-shaped rod is fixedly installed on the surface of the sliding block. The one-way block is slidably installed on the top of the sliding block. A limiting groove is formed on the top of the square box. The sliding plate is slidably installed on the top of the operating table. A rotating groove is formed on the side of the sliding plate that is close to each other. The rotating block is rotatably installed on the inner wall of the rotating groove. The stop block is fixedly installed on the inner wall of the rotating groove. When the connecting piece moves, it will contact the rotating block. The rotating block is blocked by the stop block, preventing it from moving towards the press. The inclined block is fixedly installed on the side of the sliding plate that is close to the square box. When the sliding plate moves, it drives the rotating block to move away from the square box. Subsequently, the rotating block no longer blocks the connecting piece.

[0015] According to the above technical solution, the inclined block is in contact with the sliding block, and a torsion spring is provided between the rotating block and the sliding plate. When the rotating block is no longer in contact with the connecting piece, the torsion spring drives the rotating block to rotate in the direction of the stop block.

[0016] According to the above technical solution, the protective device includes: a guide rail, a connecting plate, an air cylinder, a sealing plate, a circular rod, and a fixed ring. The guide rail is fixedly installed on the bottom of the inner wall of the operating table. The connecting plate is slidably installed on the top of the guide rail. The air cylinder is fixedly installed on the top of the connecting plate. The sealing plate is slidably installed on the inner wall of the air cylinder. A circular hole is opened on the circumferential surface of the air cylinder. The fixed ring is rotatably installed on the circumferential surface of the driving device. One end of the circular rod is fixedly installed on the circumferential surface of the fixed ring, and the other end of the circular rod is fixedly installed on the surface of the sealing plate. The movement of the circular rod drives the sealing plate to move into the air cylinder and compress the air inside the air cylinder. Because some of the circular holes are blocked by the arc-shaped baffle, the air can only be discharged through some of the circular holes.

[0017] According to the above technical solution, the protective device further includes: an L-shaped rod and an arc-shaped baffle. The L-shaped rod slides through the inner and outer walls of the operating table. The L-shaped rod is fixedly installed at the bottom of the sliding plate. The arc-shaped baffle is fixedly installed at the end of the L-shaped rod away from the sliding plate. The movement of the L-shaped rod causes the arc-shaped baffle to move away from the air cylinder. After the arc-shaped baffle moves, it no longer contacts the air cylinder.

[0018] According to the above technical solution, the arc-shaped baffle contacts the circular hole, and a second spring is provided between the sealing plate and the air cylinder. The second spring drives the sealing plate to move towards the circular rod.

[0019] This invention provides a finished product inspection machine for nylon elastic yarn processing. It has the following beneficial effects:

[0020] (1) In this invention, the movement of the fixed device away from the detector will cause the elastic wire to be stretched and straightened, so that the elastic wire is fixed and straightened, preventing the elastic wire from falling to the bottom at the center position, which would cause the elastic wire to not receive accurate pressure when the press is applied, resulting in inaccurate measurement results, thus improving the reliability of the device measurement. After the arc plate is tightly attached to the elastic wire, as the fixed plate continues to move, the triangular block will contact the square groove and be stuck into the inner wall of the square groove, so that when the elastic wire is under pressure, the arc plate cannot rotate to the top, increasing the friction between the arc plate and the elastic wire, preventing the elastic wire from sliding to the top after being under pressure, which would affect the fixation of the elastic wire, thus ensuring the reliability and accuracy of the measurement results.

[0021] (2) In this invention, the moving connector will contact the rotating block. The rotating block is blocked by the stop block, preventing the rotating block from moving towards the press. This prevents the elastic wire from moving towards each other during the test, which would affect the measurement results. The moving sliding plate drives the rotating block to move away from the square box. Then the rotating block no longer blocks the connector, so that after the test is completed, the device can quickly release the limit on the fixed device and perform other tests again, improving the working efficiency of the device.

[0022] (3) In this invention, the circular rod moves the sealing plate into the air cylinder and squeezes the air inside the air cylinder. Since some of the circular holes are blocked by the arc-shaped baffle, the air can only be discharged through some of the circular holes, which limits the speed of the fixing device when it moves. This causes the inertia of the fixing device to be too large at the moment of stress release, resulting in the devices colliding with each other and causing damage to the device. This improves the service life of the device. The L-shaped rod moves the arc-shaped baffle away from the air cylinder. After the arc-shaped baffle moves, it no longer contacts the air cylinder, so that the device will not be restricted when it is reset after the device completes the test. This allows for quick reset and improves the practicality of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the top structure of the operating table of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the operating table of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the hollow cylinder of the present invention;

[0027] Figure 5 This is a schematic diagram of the fixing device structure of the present invention;

[0028] Figure 6This is a schematic diagram showing the positional relationship between the fixing device and the protective device of the present invention;

[0029] Figure 7 This is a schematic diagram of the limiting device structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the cross-sectional structure of the square box of the present invention;

[0031] Figure 9 This is a schematic diagram of the protective device structure of the present invention.

[0032] In the diagram: 1. Cabinet; 2. Operating table; 3. Detector; 4. Press; 51. Drive unit; 52. Hollow cylinder; 53. Collar; 54. Pull rod; 55. Threaded rod; 56. Fixing plate; 57. Spring No. 1; 58. Arc plate; 59. Triangular block; 510. Telescopic rod; 511. Connector; 61. Square box; 62. Sliding block; 63. U-shaped rod; 64. One-way block; 65. Sliding plate; 66. Rotating block; 67. Stop block; 68. Inclined block; 71. Guide rail; 72. Connecting plate; 73. Air cylinder; 74. Sealing plate; 75. Circular rod; 76. Fixing ring; 77. L-shaped rod; 78. Arc baffle. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-6 One embodiment of the present invention is: a finished product testing machine for nylon elastic yarn processing, including a cabinet 1, and an operating table 2 fixedly installed on the top of the cabinet 1;

[0035] Press 4 is located on top of operating table 2 and is used to apply pressure to elastic wire;

[0036] Detector 3 is used to detect and record the parameters and data of the press 4 during operation;

[0037] The top of the cabinet 1 is equipped with a fixing device, which includes: a hollow cylinder 52, a collar 53, a pull rod 54, a threaded rod 55, a fixing plate 56 and an arc plate 58. The bottom of the inner wall of the operating table 2 is provided with a sliding groove.

[0038] The drive device 51 is disposed on the inner wall of the slide groove and is used to drive itself to move on the inner wall of the slide groove.

[0039] Hollow cylinder 52 is fixedly installed on the top of drive device 51. Collar 53 is rotatably installed on the circumferential surface of hollow cylinder 52. Pull rod 54 is fixedly installed on the circumferential surface of collar 53. Threaded rod 55 is threadedly installed on the inner wall of collar 53. Fixing plate 56 is fixedly installed on one end of threaded rod 55 near collar 53. A first spring 57 is provided on the surface of threaded rod 55. Arc plate 58 is connected to fixing plate 56 through first spring 57 to prevent the elastic wire from falling to the bottom at the center position, which would cause the elastic wire to not receive accurate pressure when the press 4 applies pressure, resulting in inaccurate measurement results and improving the reliability of the device measurement.

[0040] The fixing device also includes a triangular block 59, a telescopic rod 510, and a connector 511. The fixing device is provided in two sets. The free end of the telescopic rod 510 is fixedly installed on the circumferential surface of the drive device 51 on the side away from the detector 3. The fixed end of the telescopic rod 510 is fixedly installed on the circumferential surface of the drive device 51 on the side close to the detector 3. The triangular block 59 is fixedly installed on the side of the arc plate 58 close to the fixing plate 56. The side of the fixing plate 56 close to the triangular block 59 is provided with a square groove. The connector 511 is fixedly installed on the circumferential surface of the collar 53 to increase the friction between the arc plate 58 and the elastic wire, prevent the elastic wire from sliding to the top under pressure, which would affect the fixing of the elastic wire and ensure the reliability and accuracy of the measurement results.

[0041] Triangular block 59 contacts the square groove, and detector 3 is electrically connected to press 4, limiting the position of triangular block 59 through the square groove.

[0042] In this embodiment, during operation: the two ends of the elastic wire to be tested are placed inside the hollow cylinder 52. Then, the pull rod 54 is pushed forward to rotate. The rotation of the pull rod 54 causes the collar 53 to rotate, which in turn causes the threaded rod 55 to move into the hollow cylinder 52. The movement of the threaded rod 55 causes the fixing plate 56 to move towards the elastic wire. The movement of the fixing plate 56 causes the first spring 57 and the arc plate 58 to move towards the elastic wire. The arc plate 58 will contact the elastic wire and fix it. Then, the drive device 51 moves to move the elastic wire towards the bottom of the press 4. Subsequently, the fixing device on the side away from the detector 3 continues to move away from the detector 3. The movement of the fixing device on one side will stretch and straighten the elastic wire, thus fixing and straightening the elastic wire and preventing it from falling to the bottom from the center position. This would prevent the elastic wire from receiving accurate pressure when the press 4 applies pressure, resulting in inaccurate measurement results and improving the reliability of the device's measurement. After the arc plate 58 is tightly attached to the elastic wire, as the fixing plate 56 continues to move, the triangular block 59 will contact the square groove and lock into the inner wall of the square groove. This prevents the arc plate 58 from rotating upwards when the elastic wire is under pressure, increasing the friction between the arc plate 58 and the elastic wire and preventing the elastic wire from sliding upwards under pressure, which would affect the fixing of the elastic wire and ensure the reliability and accuracy of the measurement results.

[0043] Please see Figures 1-9 Based on the above embodiments, in another embodiment of the present invention, the top of the cabinet 1 is provided with a limiting device for fixing the fixing device and a protective device for protecting the fixing device in operation. The limiting device includes: a square box 61, a sliding block 62, a U-shaped rod 63, a one-way block 64, a sliding plate 65, a rotating block 66, a stop block 67, and an inclined block 68. The square box 61 is fixedly installed on the top of the operating table 2, the sliding block 62 is slidably installed inside the square box 61, the U-shaped rod 63 is fixedly installed on the surface of the sliding block 62, and the one-way block 64 is slidably installed on the top of the sliding block 62. The square box 61 has a limiting groove on its top. The sliding plate 65 is slidably mounted on the top of the operating table 2. The side of the sliding plate 65 that is close to each other has a rotating groove. The rotating block 66 is rotatably mounted on the inner wall of the rotating groove. The stop block 67 is fixedly mounted on the inner wall of the rotating groove to prevent the elastic wire from moving towards each other during the test, which would affect the measurement results. The inclined block 68 is fixedly mounted on the side of the sliding plate 65 that is close to the square box 61, so that after the device completes the test, the device can quickly release the limiting of the fixing device and perform other tests again, thereby improving the working efficiency of the device.

[0044] The inclined block 68 is in contact with the sliding block 62. A torsion spring is provided between the rotating block 66 and the sliding plate 65. When the rotating block 66 is no longer in contact with the connecting piece 511, the torsion spring drives the rotating block 66 to rotate in the direction of the stop block 67.

[0045] The protective device includes: a guide rail 71, a connecting plate 72, an air cylinder 73, a sealing plate 74, a circular rod 75, and a fixing ring 76. The guide rail 71 is fixedly installed on the bottom of the inner wall of the operating table 2. The connecting plate 72 is slidably installed on the top of the guide rail 71. The air cylinder 73 is fixedly installed on the top of the connecting plate 72. The sealing plate 74 is slidably installed on the inner wall of the air cylinder 73. A circular hole is opened on the circumferential surface of the air cylinder 73. The fixing ring 76 is rotatably installed on the circumferential surface of the driving device 51. One end of the circular rod 75 is fixedly installed on the circumferential surface of the fixing ring 76, and the other end of the circular rod 75 is fixedly installed on the surface of the sealing plate 74. This restricts the speed of the fixing device when it moves, resulting in excessive inertia of the fixing device at the moment of stress release, which may cause the devices to collide with each other and be damaged, thus improving the service life of the device.

[0046] The protective device also includes an L-shaped rod 77 and an arc-shaped baffle 78. The L-shaped rod 77 slides through the inner and outer walls of the operating table 2. The L-shaped rod 77 is fixedly installed at the bottom of the sliding plate 65. The arc-shaped baffle 78 is fixedly installed at the end of the L-shaped rod 77 away from the sliding plate 65, so that the device will not be restricted when resetting after the device completes the test, and can be quickly reset, thus improving the practicality of the device.

[0047] The arc-shaped baffle 78 contacts the round hole, and a second spring is provided between the sealing plate 74 and the air cylinder 73. The second spring drives the sealing plate 74 to move towards the round rod 75.

[0048] In this embodiment, during operation: the hollow cylinder 52 moves towards the square box 61, causing the connecting piece 511 to move towards the square box 61. The connecting piece 511 then contacts the rotating block 66, causing the rotating block 66 to rotate towards the square box 61. After the elastic wire is pressed by the press 4, the elastic wire drives the fixing device to move closer together. The connecting piece 511 then contacts the rotating block 66. The rotating block 66 is blocked by the stop block 67, preventing it from moving towards the press 4. This prevents the fixing device from moving closer together during testing, which could affect the measurement results. The U-shaped rod 63 is pushed towards the square box 61, and the U-shaped rod 63 moves, causing the single... The one-way block 64 moves towards the limiting groove. After the one-way block 64 is no longer in contact with the square box 61, the one-way block 64 is limited by the limiting groove. The U-shaped rod 63 moves, causing the sliding block 62 to move towards the inclined block 68. The sliding block 62 will contact the inclined block 68 and push the inclined block 68 away from the square box 61. The movement of the inclined block 68 will cause the sliding plate 65 to move away from the fixed device. The movement of the sliding plate 65 will cause the rotating block 66 to move away from the square box 61. Subsequently, the rotating block 66 will no longer block the connecting piece 511, so that after the device completes the test, the device can quickly release the limitation on the fixed device and perform other tests again, improving the working efficiency of the device.

[0049] The movement of the drive device 51 moves the fixed ring 76, which in turn moves the circular rod 75. After the elastic wire test is completed, at the moment the elastic wire breaks, due to the sudden release of stress, the fixed devices, under unidirectional limiting conditions, move away from each other. This stress release causes the fixed devices to move rapidly away from each other. The circular rod 75 moves the sealing plate 74 into the air cylinder 73, compressing the air inside. Because some of the circular holes are blocked by the arc-shaped baffle 78, air can only escape through some of the holes, limiting the speed of the fixed devices during movement. This results in excessive inertia at the moment of stress release, causing the devices to collide and damage each other, thus improving the device's lifespan. The sliding plate 65 moves the L-shaped rod 77 away from the fixed device, which in turn moves the arc-shaped baffle 78 away from the air cylinder 73. After moving, the arc-shaped baffle 78 no longer contacts the air cylinder 73, ensuring that the device resets quickly after testing without restriction, improving its practicality.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A finished product inspection machine for nylon elastic yarn processing, comprising a cabinet (1), characterized in that: An operating table (2) is fixedly installed on the top of the cabinet (1); A press (4) is installed on top of the operating table (2) and is used to apply pressure to the elastic wire; Detector (3), the detector (3) is used to detect and record the parameters and data of the press (4) during operation; The top of the cabinet (1) is provided with a fixing device, which includes: a hollow cylinder (52), a collar (53), a pull rod (54), a threaded rod (55), a fixing plate (56), and an arc plate (58). The bottom of the inner wall of the operating table (2) is provided with a sliding groove. A driving device (51) is disposed on the inner wall of the slide groove, and the driving device (51) is used to drive itself to move on the inner wall of the slide groove. The hollow cylinder (52) is fixedly installed on the top of the drive device (51), the collar (53) is rotatably installed on the circumferential surface of the hollow cylinder (52), the pull rod (54) is fixedly installed on the circumferential surface of the collar (53), the threaded rod (55) is threadedly installed on the inner wall of the collar (53), the fixing plate (56) is fixedly installed on one end of the threaded rod (55) near the collar (53), a first spring (57) is provided on the surface of the threaded rod (55), and the arc plate (58) is connected to the fixing plate (56) through the first spring (57); The cabinet (1) is provided with a protective device on the top for protecting the fixed device in operation. The protective device includes: a guide rail (71), a connecting plate (72), an air cylinder (73), a sealing plate (74), a circular rod (75), and a fixing ring (76). The guide rail (71) is fixedly installed on the bottom of the inner wall of the operating table (2). The connecting plate (72) is slidably installed on the top of the guide rail (71). The air cylinder (73) is fixedly installed on the top of the connecting plate (72). The sealing plate (74) is slidably installed on the inner wall of the air cylinder (73). The circumferential surface of the air cylinder (73) is provided with a circular hole. The fixing ring (76) is rotatably installed on the circumferential surface of the drive device (51). One end of the circular rod (75) is fixedly installed on the circumferential surface of the fixing ring (76). The other end of the circular rod (75) is fixedly installed on the surface of the sealing plate (74).

2. The finished product inspection machine for nylon elastic yarn processing according to claim 1, characterized in that: The fixing device further includes: a triangular block (59), a telescopic rod (510), and a connector (511). The fixing device is provided in two sets. The free end of the telescopic rod (510) is fixedly installed on the circumferential surface of the drive device (51) on the side away from the detector (3). The fixed end of the telescopic rod (510) is fixedly installed on the circumferential surface of the drive device (51) on the side close to the detector (3). The triangular block (59) is fixedly installed on the side of the arc plate (58) close to the fixing plate (56). The side of the fixing plate (56) close to the triangular block (59) is provided with a square groove. The connector (511) is fixedly installed on the circumferential surface of the collar (53). The top of the cabinet (1) is provided with a limiting device for fixing the fixing device.

3. The finished product inspection machine for nylon elastic yarn processing according to claim 2, characterized in that: The triangular block (59) is in contact with the square groove, and the detector (3) is electrically connected to the press (4).

4. The finished product inspection machine for nylon elastic yarn processing according to claim 3, characterized in that: The limiting device includes: a square box (61), a sliding block (62), a U-shaped rod (63), a one-way block (64), a sliding plate (65), a rotating block (66), a stop block (67), and an inclined block (68). The square box (61) is fixedly installed on the top of the operating table (2). The sliding block (62) is slidably installed inside the square box (61). The U-shaped rod (63) is fixedly installed on the surface of the sliding block (62). The one-way block (64) is slidably installed on the top of the sliding block (62). A limiting groove is provided on the top of the square box (61). The sliding plate (65) is slidably installed on the top of the operating table (2). A rotating groove is provided on the side of the sliding plate (65) that is close to each other. The rotating block (66) is rotatably installed on the inner wall of the rotating groove. The stop block (67) is fixedly installed on the inner wall of the rotating groove. The inclined block (68) is fixedly installed on the side of the sliding plate (65) that is close to the square box (61).

5. A finished product inspection machine for nylon elastic yarn processing according to claim 4, characterized in that: The inclined block (68) is in contact with the sliding block (62), and a torsion spring is provided between the rotating block (66) and the sliding plate (65).

6. The finished product inspection machine for nylon elastic yarn processing according to claim 5, characterized in that: The protective device further includes an L-shaped rod (77) and an arc-shaped baffle (78). The L-shaped rod (77) slides through the inner and outer walls of the operating table (2). The L-shaped rod (77) is fixedly installed at the bottom of the sliding plate (65). The arc-shaped baffle (78) is fixedly installed at the end of the L-shaped rod (77) away from the sliding plate (65).

7. A finished product inspection machine for nylon elastic yarn processing according to claim 6, characterized in that: The arc-shaped baffle (78) contacts the circular hole, and a second spring is provided between the sealing plate (74) and the air cylinder (73).

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