A seismic detection device for the production of rear beam shaft of air jet loom

Abstract

The present invention relates to the field of loom rear beam shaft detection, and in particular to a seismic detection device for the production of air jet loom rear beam shaft, comprising a base, a fixed seat fixedly arranged in the center of the base, a lower clamping seat arranged at the upper end of the fixed seat, an upper clamping seat arranged just above the lower clamping seat, an output end of a push cylinder fixedly connected to the upper clamping seat, the rear beam shaft is clamped and fixed between the upper clamping seat and the lower clamping seat, a group of annular detection frames are symmetrically arranged at both ends of the rear beam shaft, the upper and lower ends of the annular detection frames are respectively slidably installed in a clearance groove and a supporting slide groove, each group of annular detection frames are installed with a relatively arranged shocking assembly and a vibration test assembly, and an offset test assembly is arranged at both ends of the rear beam shaft. The present invention can realize comprehensive seismic detection of multiple parts of the rear beam shaft, has a wide detection area, and has a significant detection effect, and is suitable for popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of loom rear beam shaft detection, in particular to a seismic detection device for the production of air jet loom rear beam shaft. Background Art

[0002] The air jet loom is a shuttleless loom that uses a jet of air to pull the weft yarn through the shed. The working principle is to use air as the weft insertion medium, and the compressed air jet generates friction traction on the weft yarn to pull the weft yarn through the shed. The purpose of weft insertion is achieved through the jet generated by the air jet. This weft insertion method can enable the loom to achieve high speed and high yield.

[0003] During the long-term use of the air jet loom, the rear beam is constantly moving, and the rear beam shaft is prone to wear and heat, which can easily cause the rear beam movement to be unstable. Therefore, the anti-vibration and anti-fatigue performance of the air jet loom rear beam shaft must meet certain requirements to meet the normal use of the air jet loom. At present, the anti-vibration detection equipment for the rear beam shaft of the air jet loom is not perfect, and the test results cannot accurately reflect the anti-vibration and anti-deviation capabilities of the rear beam shaft. Summary of the invention

[0004] The purpose of the present invention is to provide a seismic detection device for the production of a rear beam shaft of an air jet loom, aiming to solve the above-mentioned technical problems.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] The camshaft is an axially-coupled device for activating the activation of the actuator, and the cam is provided with a plurality of springs for activating the activation of the actuator, wherein the cam is provided with a plurality of springs for activating the activation of the actuator.

[0007] As a further solution of the present invention: the annular detection frame includes a fixed frame, a first bracket and a second bracket, the upper end of the fixed frame is upwardly extended to provide an upper connecting seat, the threaded moving pair thread passes through the upper connecting seat, the guide rod sliding rod passes through the upper connecting seat, the lower end of the fixed frame is downwardly extended to provide a lower sliding seat, the lower sliding seat is slidably installed in a supporting slide groove, a limiting annular groove is circumferentially provided on the outer wall of the fixed frame, and an annular tooth groove is provided on the inner wall of the fixed frame.

[0008] As a further solution of the present invention: the first bracket is fixedly connected to the second bracket via a connecting bracket, a first pulley is rotatably installed in the first bracket, and a second pulley is rotatably installed in the second bracket, the first pulley and the second pulley are both adapted to be slidably installed in the limiting ring groove, a driving motor is fixedly provided on the outer side of the first bracket, a creeping gear is connected to the output end of the driving motor, and the creeping gear is meshed with the annular tooth groove.

[0009] As a further solution of the present invention: the vibration assembly includes a fixed bracket, the fixed bracket is fixedly installed on the first bracket, a vibration motor is fixedly arranged on the outside of the fixed bracket, an eccentric cam block is connected to the output end of the vibration motor, a sliding rod is fixedly connected to the fixed bracket, a lifting plate is slidably penetrated on the sliding rod, the bottom of the lifting plate is always in contact with the outer surface of the eccentric cam block, a reset spring is arranged between the top of the lifting plate and the fixed bracket, and a vibration block is fixedly arranged on the bottom of the lifting plate.

[0010] As a further solution of the present invention: the vibration test assembly includes a detection cylinder, which is fixedly mounted on the second bracket, a heat-conducting metal rod is axially slidably arranged inside the detection cylinder, an arc-shaped metal block is arranged on the top of the heat-conducting metal rod, the arc-shaped metal block is arranged in contact with the surface of the rear beam shaft, a pushing spring is arranged between the bottom of the arc-shaped metal block and the detection cylinder, an airbag is arranged inside the detection cylinder, the bottom of the heat-conducting metal rod extends into the airbag, an induction pad is arranged at the bottom of the airbag, and a photoelectric sensor is arranged at the bottom of the detection cylinder.

[0011] As a further solution of the present invention: the offset test assembly includes a mounting seat and a mounting plate, the mounting seat is fixedly installed on the upper end of the base, the mounting plate is arranged on the end face of the rear beam shaft, the edge of the mounting plate is fixedly connected to the rear beam shaft through evenly distributed fixed hooks, a laser emitter is fixedly arranged in the center of the mounting plate, the direction of the laser emitted by the laser emitter coincides with the axial direction of the rear beam shaft, an etching test board is detachably installed in the mounting plate, and the laser emitter is arranged facing the etching test board.

[0012] As a further solution of the present invention: a positioning hole is arranged at the top end of the lower clamping seat, and a positioning pin is arranged at the bottom end of the upper clamping seat, and the positioning pin is adapted to be slidably inserted into the positioning hole.

[0013] Beneficial effects of the present invention:

[0014] (1) During the testing process, the rear beam shaft to be tested is placed in the lower clamping seat, and the pushing cylinder pushes the upper clamping seat until the upper clamping seat rests against the upper end of the lower clamping seat, so that the rear beam shaft is firmly clamped and fixed to ensure that the rear beam shaft remains fixed during the testing process. The threaded moving pair allows the annular testing frame to move linearly along the guide rod, so that the vibration component can be adjusted to strike and vibrate different positions on the rear beam shaft, and then the vibration test component and the offset test component are used to detect and feedback the seismic resistance and vibration offset of the rear beam shaft, thereby realizing comprehensive seismic detection of multiple parts of the rear beam shaft. The detection area is wide, the detection effect is significant, and it is suitable for popularization and use.

[0015] (2) By setting up a vibration test component, the arc-shaped metal block will be pressed against the surface of the rear beam shaft under the action of the push spring, and the pressing area is exactly the position where the rear beam shaft is prone to vibrate and generate heat after being hit. During the vibration test, the rear beam shaft is struck back and forth by the vibration block and begins to lose heat at the vibration bending position. The arc-shaped metal block will also absorb heat and begin to heat up, and begin to transfer heat to the airbag through the heat-conducting metal rod. The airbag begins to expand after being heated and pushes the induction pad at the bottom to move downward. The photoelectric sensor is used to detect and monitor the moving distance of the induction pad, so as to provide intuitive feedback on the heat expansion of the airbag, thereby accurately reflecting the heat loss of the rear beam shaft when it is subjected to force vibration.

[0016] (3) By setting up an offset test component, in the initial static state, the laser emitted by the laser transmitter is vertically projected onto the etching test board. At this time, the high-temperature laser only etches a dot on the etching test board. During the offset test, the rear beam shaft is subjected to continuous reciprocating impact. The tiny vibrations generated at both ends of the rear beam shaft in any direction will directly reach the laser transmitter, and the subtle vibrations of the laser transmitter will be amplified through the etching path pattern left by the laser on the etching test board. Therefore, the degree of vibration offset of the rear beam shaft during impact can be concretely and intuitively fed back based on the laser etching path pattern on the etching test board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the upper clamping seat and the lower clamping seat in the present invention.

[0020] Figure 3 It is a structural schematic diagram of the annular detection frame in the present invention.

[0021] Figure 4 It is a structural schematic diagram of the vibration component in the present invention.

[0022] Figure 5 It is a structural schematic diagram of the fatigue test assembly in the present invention.

[0023] Figure 6 It is a structural schematic diagram of the vibration test assembly in the present invention.

[0024] In the figure: 1, base; 101, support frame; 102, support slide; 103, fixed seat; 2, top frame; 3, support plate; 301, give way groove; 302, threaded moving pair; 303, guide rod; 304, push cylinder; 4, lower clamping seat; 401, positioning hole; 5, upper clamping seat; 501, positioning pin; 6, annular detection frame; 610, fixed frame; 611, upper connecting seat; 612, lower sliding seat; 613, limit ring groove; 614, annular tooth groove; 620, first bracket; 621, first pulley; 622, drive motor; 623, creeping gear; 630, second bracket; 631 , second pulley; 640, connecting bracket; 7, vibration assembly; 701, fixed bracket; 702, vibration motor; 703, eccentric cam block; 704, lifting plate; 705, vibration block; 706, sliding rod; 707, reset spring; 8, vibration test assembly; 801, detection tube; 802, arc-shaped metal block; 803, push spring; 804, heat-conducting metal rod; 805, airbag; 806, induction pad; 807, photoelectric sensor; 9, offset test assembly; 901, mounting seat; 902, etching test board; 903, mounting plate; 904, fixed hook; 905, laser transmitter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 and Figure 2As shown, the present invention is a seismic detection device for the production of the rear beam shaft of an air jet loom, comprising a base 1, the upper end of the base 1 is fixedly connected to a top frame 2 through a support frame 101, a support plate 3 is fixedly arranged on the upper end of the top frame 2, a group of give-way grooves 301 are penetrated on the support plate 3, a threaded moving pair 302 and a guide rod 303 are respectively arranged on the give-way grooves 301, a pushing cylinder 304 is fixedly arranged in the center of the support plate 3, a supporting slide groove 102 is arranged on the upper end of the base 1, a fixed seat 103 is fixedly arranged in the center of the base 1, and the fixed seat 103 A lower clamping seat 4 is provided at the upper end, an upper clamping seat 5 is provided just above the lower clamping seat 4, the output end of the pushing cylinder 304 is fixedly connected to the upper clamping seat 5, the rear beam shaft is clamped and fixed between the upper clamping seat 5 and the lower clamping seat 4, a group of annular detection frames 6 are symmetrically provided at both ends of the rear beam shaft, and the upper and lower ends of the annular detection frames 6 are respectively slidably installed in the make way groove 301 and the support slide groove 102, each group of annular detection frames 6 is installed with a relatively arranged vibration assembly 7 and a vibration test assembly 8, and an offset test assembly 9 is provided at both ends of the rear beam shaft.

[0027] Specifically, during the detection process, the rear beam shaft to be detected is placed in the lower clamping seat 4, and the pushing cylinder 304 pushes the upper clamping seat 5 until the upper clamping seat 5 abuts against the upper end of the lower clamping seat 4, so that the rear beam shaft is firmly clamped and fixed to ensure that the rear beam shaft remains fixed during the detection process. The threaded moving pair 302 allows the annular detection frame 6 to move linearly along the guide rod 303, so that the vibration component 7 can be adjusted to strike and vibrate different positions on the rear beam shaft, and then the vibration test component 8 and the offset test component 9 are used to detect and feedback the seismic resistance and vibration offset of the rear beam shaft, so that comprehensive seismic detection of multiple parts of the rear beam shaft can be achieved. The detection area is wide, the detection effect is significant, and it is suitable for promotion and use.

[0028] It should be noted that the screw in the threaded moving pair 302 in the present application is a bidirectional screw. When the screw rotates, it will drive the annular detection frames 6 at both ends to move toward each other, so as to ensure that the vibration assemblies 7 at both ends can move to symmetrical positions at both ends of the rear beam shaft, and apply uniform impact force to both ends of the rear beam shaft, so as to better simulate the stress conditions of the rear beam shaft in actual use and ensure the accuracy of the detection results.

[0029] like Figure 3 As shown, the annular detection frame 6 includes a fixed frame 610, a first bracket 620 and a second bracket 630. An upper connecting seat 611 is extended upward from the upper end of the fixed frame 610. The threaded moving pair 302 threadably penetrates the upper connecting seat 611. The guide rod 303 and the sliding rod 706 penetrate the upper connecting seat 611. A lower sliding seat 612 is extended downward from the lower end of the fixed frame 610. The lower sliding seat 612 is slidably installed in the supporting slide groove 102. A limiting annular groove 613 is circumferentially provided on the outer wall of the fixed frame 610, and an annular tooth groove 614 is provided on the inner wall of the fixed frame 610.

[0030] like Figure 4 As shown, the first bracket 620 and the second bracket 630 are fixedly connected via a connecting bracket 640, a first pulley 621 is rotatably installed in the first bracket 620, and a second pulley 631 is rotatably installed in the second bracket 630, both the first pulley 621 and the second pulley 631 are adapted to be slidably installed in the limiting ring groove 613, a driving motor 622 is fixedly provided on the outer side of the first bracket 620, and a creeping gear 623 is connected to the output end of the driving motor 622, and the creeping gear 623 is meshed with the annular tooth groove 614.

[0031] Specifically, by setting up the annular detection frame 6, during detection, the vibration assembly 7 and the vibration test assembly 8 are respectively installed on the first bracket 620 and the second bracket 630, and the vibration assembly 7 and the vibration test assembly 8 are always kept relatively arranged, so that the vibration heating effect generated by the vibration assembly 7 hitting the rear beam shaft can be better transmitted to the vibration test assembly 8. At the same time, when the hitting direction needs to be adjusted, the driving motor 622 is started to drive the creeping gear 623 to rotate, and the creeping gear 623 will rotate along the annular tooth groove 614, thereby driving the first bracket 620 and the second bracket 630 to rotate around the axis direction. During this process, the vibration assembly 7 and the vibration test assembly 8 will also keep facing each other and rotating synchronously, so that the hitting vibration direction can be easily adjusted, and the vibration detection position will also be automatically adjusted synchronously with the hitting direction.

[0032] like Figure 4 As shown, the vibration assembly 7 includes a fixed bracket 701, which is fixedly installed on the first bracket 620. A vibration motor 702 is fixedly arranged on the outer side of the fixed bracket 701. The output end of the vibration motor 702 is connected to an eccentric cam block 703. A sliding rod 706 is fixedly connected to the fixed bracket 701. A lifting plate 704 is slidingly penetrated on the sliding rod 706. The bottom of the lifting plate 704 is always in contact with the outer surface of the eccentric cam block 703. A reset spring 707 is arranged between the top of the lifting plate 704 and the fixed bracket 701. A vibration block 705 is fixedly arranged on the bottom of the lifting plate 704.

[0033] Specifically, by setting up the vibration component 7, when the vibration motor 702 is started, it will drive the eccentric cam block 703 to rotate. Under the action of the reset spring 707, the lifting plate 704 is always pressed against the surface of the eccentric cam block 703. During the rotation, the eccentric cam block 703 will drive the lifting plate 704 to move back and forth along the sliding rod 706, thereby driving the vibration block 705 to reciprocate and strike the rear beam shaft to generate vibration, and the striking direction can be adjusted in a full coverage manner of 360°, thereby better simulating the different vibration conditions of the rear beam shaft during actual work.

[0034] like Figure 5As shown, the vibration test assembly 8 includes a detection cylinder 801, which is fixedly installed on the second bracket 630. A heat-conducting metal rod 804 is axially slidably arranged inside the detection cylinder 801. An arc-shaped metal block 802 is arranged on the top of the heat-conducting metal rod 804. The arc-shaped metal block 802 is arranged close to the surface of the rear beam axis. A pushing spring 803 is arranged between the bottom of the arc-shaped metal block 802 and the detection cylinder 801. An airbag 805 is arranged inside the detection cylinder 801. The bottom of the heat-conducting metal rod 804 extends into the airbag 805. An induction pad 806 is arranged at the bottom of the airbag 805. A photoelectric sensor 807 is arranged at the bottom of the detection cylinder 801.

[0035] Specifically, by setting up the vibration test component 8, the arc-shaped metal block 802 will be attached to the surface of the rear beam shaft under the action of the push spring 803, and the abutting area is exactly the position where the rear beam shaft is prone to vibrate and generate heat after being hit. During the vibration test, the rear beam shaft is struck back and forth by the vibration block 705 and begins to lose heat at the vibration bending position. The arc-shaped metal block 802 will also absorb heat and begin to heat up, and begin to transfer heat to the airbag 805 through the heat-conducting metal rod 804. The airbag 805 begins to expand after being heated and pushes the sensing pad 806 at the bottom to move downward. The photoelectric sensor 807 is used to detect and monitor the moving distance of the sensing pad 806, so as to intuitively feedback the heat expansion of the airbag 805, thereby accurately reflecting the heat loss of the rear beam shaft when it is subjected to force vibration. When the sensing pad 806 moves a smaller distance, it means that the expansion amplitude of the airbag 805 is small, which means that the heating condition at the vibration bending position of the rear beam shaft is not serious. When the sensing pad 806 moves a larger distance, it means that the expansion amplitude of the airbag 805 is larger, which means that the heating temperature at the vibration bending position of the rear beam shaft is higher.

[0036] like Figure 6 As shown, the offset test assembly 9 includes a mounting seat 901 and a mounting plate 903. The mounting seat 901 is fixedly mounted on the upper end of the base 1. The mounting plate 903 is arranged on the end face of the rear beam shaft. The edge of the mounting plate 903 is fixedly connected to the rear beam shaft through evenly distributed fixed hooks 904. A laser emitter 905 is fixedly arranged at the center of the mounting plate 903. The direction of the laser emitted by the laser emitter 905 coincides with the direction of the axis of the rear beam shaft. An etching test plate 902 is detachably installed in the mounting plate 903, and the laser emitter 905 is arranged facing the etching test plate 902.

[0037] Specifically, by setting the offset test component 9, in the initial static state, the laser emitted by the laser emitter 905 is vertically projected onto the etching test board 902. At this time, the high-temperature laser only etches a dot on the etching test board 902. During the offset test process, the rear beam shaft is subjected to reciprocating continuous striking, and the tiny vibrations generated at both ends of the rear beam shaft in any direction will directly reach the laser emitter 905, and the subtle vibrations of the laser emitter 905 will be amplified by the etching path pattern left by the laser on the etching test board 902, so that the vibration offset degree of the rear beam shaft during striking can be concretely and intuitively fed back according to the laser etching path pattern on the etching test board 902. After completing an offset test, the etching test board 902 can be pulled out from the mounting plate 903 to facilitate the replacement of a new etching test board 902 for the next test process.

[0038] like Figure 2 As shown, a positioning hole 401 is provided at the top end of the lower clamping seat 4 , and a positioning pin 501 is provided at the bottom end of the upper clamping seat 5 . The positioning pin 501 is adapted to be slidably inserted into the positioning hole 401 .

[0039] The working principle of the present invention is as follows: Figure 1-Figure 6As shown, when in use, the rear beam shaft to be tested is placed in the lower clamping seat 4, and the pushing cylinder 304 pushes the upper clamping seat 5 until the upper clamping seat 5 abuts against the upper end of the lower clamping seat 4, so that the rear beam shaft is firmly clamped and fixed to ensure that the rear beam shaft remains fixed during the detection process. The threaded moving pair 302 allows the annular detection frame 6 to move linearly along the guide rod 303, so that the vibration assembly 7 can be adjusted to strike and vibrate different positions on the rear beam shaft, and then the vibration test assembly 8 and the offset test assembly 9 are used to detect and feedback the seismic resistance and vibration offset of the rear beam shaft. Under the action of the push spring 803, the arc-shaped metal block 802 will be pressed against the surface of the rear beam shaft, and the pressing area is exactly the position where the rear beam shaft is prone to vibrate and generate heat after being hit. During the vibration test, the rear beam shaft is struck back and forth by the vibration block 705 and begins to lose heat at the vibration bending position. The arc-shaped metal block 802 will also absorb heat and begin to heat up, and begin to transfer heat to the airbag 805 through the heat-conducting metal rod 804. The airbag 805 begins to expand after being heated and pushes the sensing pad 806 at the bottom to move downward. The photoelectric sensor 807 is used to detect and monitor the moving distance of the sensing pad 806, so as to provide intuitive feedback on the heat expansion of the airbag 805, thereby accurately reflecting the heat loss of the rear beam shaft when it is subjected to force vibration. In the initial static state, the laser emitted by the laser emitter 905 is vertically projected onto the etching test board 902. At this time, the high-temperature laser only etches a dot on the etching test board 902. During the offset test, the rear beam shaft is subjected to continuous reciprocating impact. The tiny vibrations generated at both ends of the rear beam shaft in any direction will directly reach the laser emitter 905, and the subtle vibrations of the laser emitter 905 will be amplified through the etching path pattern left by the laser on the etching test board 902. Therefore, the vibration offset degree of the rear beam shaft during impact can be concretely and intuitively fed back according to the laser etching path pattern on the etching test board 902.

[0040] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A seismic detection device for the production of a rear beam shaft of an air jet loom, comprising a base (1), the upper end of the base (1) being fixedly connected to a top frame (2) via a support frame (101), the upper end of the top frame (2) being fixedly provided with a support plate (3), characterized in that: The support plate (3) is provided with a group of clearance grooves (301) running through it, and the clearance grooves (301) are respectively provided with threaded moving pairs (302) and guide rods (303). A pushing cylinder (304) is fixedly provided at the center of the support plate (3). A supporting slide groove (102) is provided at the upper end of the base (1). A fixed seat (103) is fixedly provided at the center of the base (1). A lower clamping seat (4) is provided at the upper end of the fixed seat (103). An upper clamping seat (5) is provided directly above the lower clamping seat (4). The output end of the push cylinder (304) is fixedly connected to the upper clamping seat (5), and the rear beam shaft is clamped and fixed between the upper clamping seat (5) and the lower clamping seat (4). A group of annular detection frames (6) are symmetrically arranged at both ends of the rear beam shaft. The upper and lower ends of the annular detection frames (6) are slidably installed in the clearance groove (301) and the support slide groove (102) respectively. Each group of the annular detection frames (6) is installed with a relatively arranged vibration component (7) and a vibration test component (8), and both ends of the rear beam shaft are provided with an offset test component (9); The annular detection frame (6) comprises a fixed frame (610), a first bracket (620) and a second bracket (630); an upper connecting seat (611) is provided on the upper end of the fixed frame (610) and extends upward; the threaded movable pair (302) is threadedly penetrated through the upper connecting seat (611); the guide rod (303) slides through the upper connecting seat (611); a lower sliding seat (612) is provided on the lower end of the fixed frame (610) and extends downward; the lower sliding seat (612) is slidably installed in the supporting slide groove (102); a limiting annular groove (613) is circumferentially provided on the outer wall of the fixed frame (610); and an annular tooth groove (614) is provided on the inner wall of the fixed frame (610); The first bracket (620) and the second bracket (630) are fixedly connected via a connecting bracket (640); a first pulley (621) is rotatably mounted in the first bracket (620); a second pulley (631) is rotatably mounted in the second bracket (630); the first pulley (621) and the second pulley (631) are both adapted to be slidably mounted in the limiting annular groove (613); a driving motor (622) is fixedly mounted on the outer side of the first bracket (620); a creeping gear (623) is connected to the output end of the driving motor (622); and the creeping gear (623) is meshed with the annular tooth groove (614); The vibration test assembly (8) comprises a detection cylinder (801), the detection cylinder (801) is fixedly mounted on the second bracket (630), a heat-conducting metal rod (804) is axially slidably arranged inside the detection cylinder (801), an arc-shaped metal block (802) is arranged on the top of the heat-conducting metal rod (804), the arc-shaped metal block (802) is arranged close to the surface of the rear beam shaft, a push spring (803) is arranged between the bottom of the arc-shaped metal block (802) and the detection cylinder (801), an air bag (805) is arranged inside the detection cylinder (801), the bottom of the heat-conducting metal rod (804) extends into the air bag (805), a sensing pad (806) is arranged at the bottom of the air bag (805), and a photoelectric sensor (807) is arranged at the bottom of the detection cylinder (801); The offset test assembly (9) comprises a mounting seat (901) and a mounting plate (903), wherein the mounting seat (901) is fixedly mounted on the upper end of the base (1), the mounting plate (903) is arranged on the end surface of the rear beam shaft, the edge of the mounting plate (903) is fixedly connected to the rear beam shaft via evenly distributed fixed hooks (904), a laser emitter (905) is fixedly arranged at the center of the mounting plate (903), the direction of the laser emitted by the laser emitter (905) coincides with the direction of the axis of the rear beam shaft, an etching test plate (902) is detachably mounted in the mounting plate (903), and the laser emitter (905) is arranged facing the etching test plate (902).

2. The anti-seismic detection device for the production of the rear beam shaft of an air jet loom according to claim 1, characterized in that: The vibration assembly (7) comprises a fixed bracket (701), wherein the fixed bracket (701) is fixedly mounted on the first bracket (620), a vibration motor (702) is fixedly arranged on the outer side of the fixed bracket (701), an eccentric cam block (703) is connected to the output end of the vibration motor (702), a sliding rod (706) is fixedly connected to the fixed bracket (701), a lifting plate (704) is slidably penetrated on the sliding rod (706), the bottom of the lifting plate (704) is always in contact with the outer surface of the eccentric cam block (703), a return spring (707) is arranged between the top of the lifting plate (704) and the fixed bracket (701), and a vibration block (705) is fixedly arranged at the bottom of the lifting plate (704).

3. The anti-seismic detection device for the production of the rear beam shaft of an air jet loom according to claim 1, characterized in that: The top end of the lower clamping seat (4) is provided with a positioning hole (401), and the bottom end of the upper clamping seat (5) is provided with a positioning pin (501), and the positioning pin (501) is adapted to be slidably inserted into the positioning hole (401).

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