Laser cutting device for weaving machine accessory production

Abstract

The invention relates to the technical field of weaving machine accessory machining, in particular to a laser cutting device for weaving machine accessory production, which comprises a control table, transverse electric sliding tables are slidably mounted on two sides of the upper end of the control table, and longitudinal electric sliding tables are fixedly mounted at the upper ends of the transverse electric sliding tables; a laser control piece is slidably mounted at the working end of the longitudinal electric sliding table, clamping mechanisms are arranged at the four corners in the containing groove, a rear side magnetic plate is fixedly mounted on one side of the lower end of the laser control piece, and two outer side blocks which are symmetrically arranged are fixedly mounted on the other side of the lower end of the laser control piece; a laser emitting mechanism is arranged in the middle of the lower end of the laser control piece. The cutting precision is ensured through material fixing and cutting positioning design; due to the application of Lorentz force, the cutting quality is improved, and the cutting precision and efficiency are improved; the rotary turbulent flow opposite flushing is excellent in slag cleaning and heat dissipation, and the defects of traditional direct flushing air flow are overcome; and the electric scraping plate can clean residual slag in time.

Description

Technical Field

[0001] The invention relates to the technical field of loom accessories processing, and in particular to a laser cutting device for producing loom accessories. Background Art

[0002] In the existing technology, laser cutting will produce slag, which may form defects such as burrs and slag at the incision, affecting the flatness and verticality of the incision. This will not only increase the workload of subsequent cleaning and processing, but may also lead to a decrease in the mechanical properties of the incision, such as a decrease in the strength, toughness and other indicators of the incision.

[0003] Most of the existing technologies for treating slag use direct blowing. However, due to the unidirectional airflow, some parts of the cutting area may not be adequately covered by the airflow, resulting in the hot slag in these parts not being blown away in time, which in turn affects the cutting quality. In addition, during the slag blowing process, the airflow will form longitudinal turbulence around the cutting area, causing some of the hot slag that has been blown away to fall back onto the cutting surface, causing secondary adhesion.

[0004] To this end, the present application proposes a laser cutting device for the production of loom accessories to optimize the above-mentioned operations to improve the slag treatment effect. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings existing in the prior art and to propose a laser cutting device for producing loom accessories.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a laser cutting device for producing loom accessories, comprising a control console, horizontal electric slides are slidably installed on both sides of the upper end of the control console, a longitudinal electric slide is fixedly installed on the upper end of the horizontal electric slide, a laser control component is slidably installed on the working end of the longitudinal electric slide, a holding groove is provided at the middle position of the upper end surface of the control console, and clamping mechanisms are provided at the four corners inside the holding groove, a rear magnetic plate is fixedly installed on one side of the lower end of the laser control component, and two outer blocks symmetrically arranged are fixedly installed on the other side, and a laser emitting mechanism is provided at the middle position of the lower end of the laser control component; A vertical inner groove is provided inside the outer block, and a transversely arranged side wind groove is provided at the lower part of the outer block. The side wind groove is connected with the inner groove, and an angle adjustment mechanism is provided at the outlet of the side wind groove. An inner ring is provided at one end of the angle adjustment mechanism away from the side wind groove, and an outer ring is fixedly connected to one end of the inner ring away from the angle adjustment mechanism.

[0007] Preferably, the clamping mechanism includes a first electric slide groove and an electric slide plate arranged at the inner corner of the containing groove, the electric slide plate is slidably connected to the first electric slide groove, a fixing plate is detachably installed at the upper end of the corner, and the fixing plate is arranged parallel to the electric slide plate.

[0008] Preferably, a second electric slide groove is opened on the front and rear side walls of the containing groove, and an electric slide member slidably connected to the second electric slide groove is provided in the containing groove. An electric scraper is installed on the upper end of the electric slide member. The electric scraper is located below the material plate and has a telescopic function.

[0009] Preferably, the rear magnetic plate is designed in an inverted step shape and faces the outer block side.

[0010] Preferably, the laser emitting mechanism includes a laser housing fixedly mounted at the middle position of the lower end of the laser control component, a ceramic ring is fixedly mounted inside the lower end of the laser housing, a plurality of magnetic blocks are arranged in a circular array on the upper end surface of the ceramic ring, an electromagnetic coil is commonly connected to the upper ends of the plurality of magnetic blocks, and a nozzle is detachably mounted on the lower end of the ceramic ring.

[0011] Preferably, a spiral air duct is installed in the inner groove, and the spiral air duct is connected to an air pump built into the laser control component.

[0012] Preferably, a plurality of spoilers are staggeredly distributed inside the side wind slot.

[0013] Preferably, the angle adjustment mechanism includes a rotating ball rotatably installed at the outlet of the side wind slot, the rotating ball is designed to be through-through from left to right, and an electric shaft is provided at the middle position on the front and rear sides of the rotating ball. The electric shaft is fixedly installed on the outer block, and its working end is fixedly connected to the rotating ball.

[0014] Preferably, the outer ring is composed of two staggered half rings, and the side walls of the inner ring and the outer ring are both provided with cavities, and the cavities inside the two are connected. A plurality of outer flow ports are evenly distributed on the inner wall of the outer ring, and the outer flow ports are connected with the cavities in the side wall of the outer ring. A plurality of inner flow ports are evenly distributed on the inner wall of the inner ring, and the inner flow ports are connected with the cavities in the side wall of the inner ring, and the inner flow ports are inclined toward one side of the outer ring, and a ventilation component is provided between the outer ring and the side wind slot.

[0015] Preferably, the ventilation assembly includes an outer air duct fixedly mounted on the outer ring, the outer air duct being connected to a cavity in the side wall of the outer ring through a groove provided on the side wall of the outer ring, inner air ducts being provided on both the upper and lower sides of the side air groove, one end of the inner air duct being connected to the interior of the side air groove, and the other end being connected to the outer air duct.

[0016] Compared with the prior art, the advantages of the present invention are: 1. In this application, the material plate is placed in the holding tank and fixed by the electric slide and the fixing plate to ensure the stability of the material. The laser control part is driven to move to the specified position by the horizontal and vertical electric slides, which can accurately locate the cutting point, lay the foundation for subsequent precise cutting, reduce cutting errors caused by material shaking or cutting position deviation, and improve the accuracy and stability of cutting work.

[0017] 2. In this application, the magnetic block and the electromagnetic coil cooperate to form a Lorentz force, which can change the trajectory of the charged slag particles during cutting, making it easier for the slag to be discharged from the cutting area. At the same time, the magnetic field confinement effect makes the plasma more stable, reduces laser scattering and energy loss, and can also make the heat distribution of the molten pool uniform, inhibit the expansion of the heat-affected zone, reduce thermal deformation of the material, and comprehensively improve cutting accuracy and efficiency.

[0018] 3. In this application, after the airflow forms a spiral trajectory through the spiral air duct, a rotating spoiler is formed through the spoiler. This method generates a strong impact force, which can impact the slag from different angles and effectively clean the cutting area. The complex three-dimensional flow field can also make the air fully contact with the hot zone, break the thermal boundary layer, improve the heat dissipation effect, and solve the problem of straight airflow cleaning and uneven heat dissipation.

[0019] 4. In this application, the slag after purging may adhere to the bottom of the material plate. The electric scraper can be retracted and scraped along the second electric slide to follow the laser cutting. The electric scrapers on both sides are set on the electric slide to scrape the slag back and forth, clean it up at the first time, avoid slag accumulation affecting the cutting quality, and ensure the continuous and efficient cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a laser cutting device for producing loom accessories proposed by the present invention; Figure 2 This is a schematic diagram of the structure of the cooperation between a holding tank and a transverse electric slide table of a laser cutting device for producing loom accessories proposed by the present invention; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 A schematic diagram of the structure of the electric slide and the electric scraper cooperating with each other in a laser cutting device for producing loom accessories proposed by the present invention; Figure 5 A schematic diagram of the structure of the laser housing and the ceramic ring cooperating with each other in a laser cutting device for producing loom accessories proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the outer block and the spiral air duct cooperating with each other in a laser cutting device for producing loom accessories proposed by the present invention; Figure 7 for Figure 6 A magnified schematic diagram of the structure at B in the middle; Figure 8 for Figure 6 A magnified schematic diagram of the structure at C in the middle; Fig. 9 This is a schematic structural diagram of the inner ring and outer ring of a laser cutting device for producing loom accessories proposed by the present invention.

[0021] In the figure: 1 control console, 2 holding tank, 3 horizontal electric slide, 4 longitudinal electric slide, 5 laser control part, 6 electric slide plate, 7 first electric slide, 8 fixed plate, 9 second electric slide, 10 electric slide, 11 electric scraper, 12 laser housing, 13 ceramic ring, 14 nozzle, 15 magnetic block, 16 electromagnetic coil, 17 rear magnetic plate, 18 outer block, 19 inner tank, 20 spiral air duct, 21 side air duct, 22 spoiler, 23 rotating ball, 24 electric shaft, 25 inner ring, 26 outer ring, 27 inner flow port, 28 outer flow port, 29 inner air duct, 30 outer air duct. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figures 1 to 9 A laser cutting device for producing loom accessories includes a control console 1, a containing groove 2 is provided at the middle position of the upper end surface of the control console 1, a first electric slide groove 7 and an electric slide plate 6 are provided at the four corners inside the containing groove 2, the electric slide plate 6 is slidably connected with the first electric slide groove 7, and starting the electric slide plate 6 and the first electric slide groove 7 can make the electric slide plate 6 move up and down in the first electric slide groove 7, a fixing plate 8 is detachably installed on the upper end of the corner, and the fixing plate 8 is arranged parallel to the electric slide plate 6, and the four corners of the material plate can be fixed by adjusting the distance between the fixing plate 8 and the electric slide plate 6.

[0024] A second electric slide 9 is provided on the front and rear side walls of the containing groove 2. An electric slide 10 is provided in the containing groove 2 and is slidably connected to the second electric slide 9. An electric scraper 11 is installed on the upper end of the electric slide 10. The electric scraper 11 is located below the material plate and has a telescopic function for scraping off the slag attached to the lower surface of the material plate.

[0025] A transverse electric slide 3 is slidably installed on both sides of the upper end of the console 1. The transverse electric slide 3 can move horizontally left and right on the console 1. A longitudinal electric slide 4 is fixedly installed on the upper end of the transverse electric slide 3. A laser control component 5 is slidably installed on the working end of the longitudinal electric slide 4. The transverse electric slide 3, the longitudinal electric slide 4 and the laser control component 5 are all existing technologies, and their specific structural designs are not repeated here. By setting the transverse electric slide 3 and the longitudinal electric slide 4, the position of the laser control component 5 can be adjusted, so as to facilitate cutting of the material plate at an appropriate position.

[0026] A rear magnetic plate 17 is fixedly installed on one side of the lower end of the laser control component 5, and two symmetrically arranged outer blocks 18 are fixedly installed on the other side. The rear magnetic plate 17 is designed in an inverted step shape and faces the outer block 18. A laser housing 12 is fixedly installed in the middle position of the lower end of the laser control component 5, and a ceramic ring 13 is fixedly installed inside the lower end of the laser housing 12. The upper end surface of the ceramic ring 13 is provided with multiple magnetic blocks 15 in a circular array. The upper ends of the multiple magnetic blocks 15 are commonly connected to an electromagnetic coil 16. The magnetic blocks 15 form a stable magnetic field. After the electromagnetic coil 16 is added, a Lorentz force will be generated. The lower end of the ceramic ring 13 is detachably mounted with a nozzle 14.

[0027] A vertical inner groove 19 is provided inside the outer block 18, and a spiral air duct 20 is installed in the inner groove 19. The spiral air duct 20 is connected to the air pump built into the laser control component 5, and air with a certain flow rate is transported to the spiral air duct 20 through the air pump. A transversely arranged side wind groove 21 is provided at the lower part of the outer block 18, and the side wind groove 21 is connected to the inner groove 19. A plurality of spoilers 22 are staggered inside the side wind groove 21. A rotating ball 23 is rotatably installed at the outlet of the side wind groove 21. The rotating ball 23 is designed to be through-through from left to right. An electric shaft 24 is provided at the middle position of the front and rear sides of the rotating ball 23. The electric shaft 24 is fixedly installed on the outer block 18, and its working end is fixedly connected to the rotating ball 23. When the two electric shafts 24 run synchronously, the rotating ball 23 can be driven to rotate in a vertical plane.

[0028] An inner ring 25 is rotatably mounted on one end of the rotating ball 23 away from the side wind slot 21, and an outer ring 26 is fixedly connected to one end of the inner ring 25 away from the rotating ball 23. The outer ring 26 is composed of two offset half rings. The side walls of the inner ring 25 and the outer ring 26 are provided with cavities, and the cavities inside the two are connected. A plurality of outer flow ports 28 are evenly distributed on the inner wall of the outer ring 26, and the outer flow ports 28 are connected to the cavities in the side wall of the outer ring 26. A plurality of inner flow ports 27 are evenly distributed on the inner wall of the inner ring 25, and the inner flow ports 27 are connected to the cavities in the side wall of the inner ring 25, and the inner flow ports 27 are inclined toward one side of the outer ring 26, so that the airflow blown out of the inner flow ports 27 blows toward one side of the outer ring 26. An outer air duct 30 is fixedly mounted at the offset positions of the two half rings, and the outer air duct 30 is connected to the cavity in the side wall of the outer ring 26 through the grooves provided on the side wall of the outer ring 26. Inner air ducts 29 are provided on the upper and lower sides of the side wind slot 21. One end of the inner air duct 29 is connected to the inside of the side wind slot 21, and the other end is connected to the outer air duct 30, so that a part of the airflow entering the side wind slot 21 can enter the inner air duct 29, then enter the outer air duct 30, and finally be ejected through the inner flow port 27 and the outer flow port 28.

[0029] When the present invention is in use, the material plate is first placed in the containing groove 2, and the containing groove 2 is opened on the control console 1. After the material plate is placed in the containing groove 2, the four corners and the electric slide plate 6 fit together, and then the fixing plates 8 at the four corners and the control console 1 are threadedly connected. After the threaded connection, the electric slide plate 6 automatically rises upward in the first electric slide groove 7 until it hits the lower surface of the fixing plate 8. At this time, the material plate is in a fixed state, and then the electric slide 10 slides in the second electric slide groove 9, driving the electric scraper 11 to move to the position where cutting is required.

[0030] At this time, the laser cutting device needs to move to the specified position, and the horizontal electric slide 3 moves, thereby driving the laser control component 5 to move left and right (with Figure 1 For example), the longitudinal electric slide 4 then moves, driving the laser control component 5 to move. After reaching the specified position, the laser control component 5 is started, the laser is emitted, and cutting begins.

[0031] When the laser starts cutting, the magnetic block 15 and the electromagnetic coil 16 cooperate to form a Lorentz force. The electromagnetic coil 16 can control the strength of the magnetic field according to the output of the current. Under the action of the Lorentz force, the charged slag particles generated during the cutting process will be affected by the Lorentz force. According to the left-hand rule, the charged particles will move in a specific direction, thereby changing their motion trajectory, making it easier for the slag to be discharged from the cutting area, and also improving the accuracy of the cutting. The restraining effect of the magnetic field on the charged particles can make the plasma in the cutting area more stable. During the laser cutting process, the stability of the plasma has an important influence on the transmission and absorption of the laser. Stable plasma can reduce the scattering and energy loss of the laser, so that the laser can act more accurately on the cutting part, thereby improving the cutting accuracy. The Lorentz force can affect the flow of fluid in the molten pool, making the heat distribution in the molten pool more uniform and reducing local overheating. This helps to inhibit the expansion of the heat-affected zone, reduce the thermal deformation of the material during the cutting process, and further improve the cutting accuracy and efficiency.

[0032] The rear magnetic plate 17 can constrain the moving charged particles and make them move along a specific trajectory. This is because the direction of the Lorentz force of the magnetic field on the charged particles is related to the direction of the particles' movement and the direction of the magnetic field. The magnetic field generated by the trapezoidal magnetic plate can guide the particles to move in the expected direction to a certain extent, and can guide the charged particles in the plasma to flow toward the electrode, thereby improving the efficiency of the magnetic field.

[0033] During laser cutting, a hot zone will be generated. If the hot zone is not handled in time, the laser energy may be unevenly distributed in the cutting area, resulting in local overheating of the material. The material in the overheated area will be over-melted, and the molten material cannot be blown away from the cutting area in time by the auxiliary gas under the action of surface tension and gravity, which will form slag attached to the cutting edge or cutting surface. In the prior art, a straight-mouthed purge device is installed at the nozzle 14, thereby forming a straight-flow airflow to purge the slag. At the beginning of cutting, when the amount of hot slag is small, the straight-flow airflow can effectively blow away the slag and keep the cutting area clean. However, when the heat in the hot zone increases, the cleaning ability of the straight-flow airflow on the slag will be greatly reduced.

[0034] When the device is cooling the hot zone, the airflow will flow along the spiral air duct 20. After the airflow passes through the spiral air duct 20, a spiral flow trajectory will be formed to ensure the stability of the airflow output. At this time, the airflow will be output to the right along the side air slot 21 (with Figure 8For example, a part of the airflow will enter the inner air duct 29 and then enter the outer air duct 30, while the outer air duct 30 and the outer ring 26 are interconnected, and the outer ring 26 and the inner ring 25 are also interconnected. When the airflow passing through the side wind groove 21 contacts the spoiler 22, the spoiler 22 will block the airflow to form a turbulent flow, and output it to the outer ring 26. An inner flow port 27 that is inclined is opened in the inner ring 25, and the opening direction of the inner flow port 27 is to open to the right to output the airflow to the right side, thereby accelerating the flow speed of the airflow. The outer flow port 28 is opened on the outer ring 26, and the outer flow port 28 is used to transport the airflow inward, so that the airflow after being pushed forms a rotating turbulent flow. A rotating ball 23 is provided on the outside of the inner ring 25, and an electric shaft 24 is provided on the outside of the rotating ball 23, which drives the inner ring 25 and the outer ring 26 to adjust the angle.

[0035] When two rotating turbulent flows collide, their momentum is superimposed on each other, generating a stronger impact force. This impact force can effectively act on the slag, causing it to fall off the cutting surface or other attachment parts. Compared with airflow or turbulence in a single direction, the counter-rotating turbulent flow can impact the slag from different angles, more comprehensively cover the area where the slag is located, and improve the cleaning effect. In this flow field, the direction and speed of the airflow are constantly changing, generating various eddies and turbulent areas. The counter-flow produces a three-dimensional rotating vortex, the size of which can reach 2-5 times the diameter of the nozzle 14, while the vortex of the straight airflow is mainly manifested as longitudinal turbulence, the airflow energy is concentrated in the cutting direction, and the lateral diffusion is weak. The complex flow field of the counter-flow can make the slag be affected by forces in multiple directions, increasing the movement and tumbling of the slag, making it easier to detach from the surface of the object. At the same time, the vortex in the flow field can entrain the slag, so that it is taken away with the airflow, preventing the slag from attaching to the cutting surface again, and their interaction will increase the speed and turbulence intensity of the airflow, which helps to improve the slag carrying capacity of the airflow, thereby achieving a better cleaning effect.

[0036] In the existing heat dissipation, the range of the straight airflow is relatively narrow, which can easily cause uneven heat dissipation on the surface of the hot zone. Moreover, due to the limited coverage area of ​​the straight airflow on the surface of the hot zone, for large-area hot zones, its overall heat dissipation effect may not be as good as that of the rotating turbulent counterflow or ordinary counterflow. In addition, the straight airflow may form a large pressure difference on the surface of the hot zone, causing the airflow to form a backflow around the hot zone, affecting the heat dissipation effect. The complex three-dimensional flow field formed by the rotating turbulent counterflow can make the air contact with the surface of the hot zone more sufficient, increasing the heat exchange area and disturbance degree between the air and the hot zone. This helps to break the thermal boundary layer and transfer heat from the hot zone to the air more effectively, thereby improving the heat dissipation effect.

[0037] After purging, part of the slag may be blown to the bottom of the material plate. At this time, the electric scraper 11 will be extended to a suitable position and follow the second electric slide 9 to scrape off the attached slag. The electric scraper 11 will follow the laser cutting to scrape off the slag and scrape it off at the first time, so that electric scrapers 11 on both sides are provided on the electric slide 10, and scraping can be performed from the front and back.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cutting device for producing loom accessories, comprising a control console (1), wherein transverse electric slides (3) are slidably mounted on both sides of the upper end of the control console (1), a longitudinal electric slide (4) is fixedly mounted on the upper end of the transverse electric slide (3), and a laser control component (5) is slidably mounted on the working end of the longitudinal electric slide (4), characterized in that: A holding groove (2) is provided at the middle position of the upper surface of the console (1), and clamping mechanisms are provided at the four corners inside the holding groove (2). A rear magnetic plate (17) is fixedly mounted on one side of the lower end of the laser control component (5), and two symmetrically arranged outer blocks (18) are fixedly mounted on the other side. A laser emitting mechanism is provided at the middle position of the lower end of the laser control component (5); A vertical inner groove (19) is provided inside the outer block (18), and a transversely arranged side wind groove (21) is provided at the lower part inside the outer block (18), the side wind groove (21) is connected with the inner groove (19), an angle adjustment mechanism is provided at the outlet of the side wind groove (21), an inner ring (25) is provided at one end of the angle adjustment mechanism away from the side wind groove (21), and an outer ring (26) is fixedly connected to one end of the inner ring (25) away from the angle adjustment mechanism.

2. The laser cutting device for producing loom accessories according to claim 1, characterized in that: The clamping mechanism comprises a first electric slide groove (7) and an electric slide plate (6) arranged at an inner corner of the containing groove (2); the electric slide plate (6) is slidably connected to the first electric slide groove (7); a fixing plate (8) is detachably mounted on the upper end of the corner; the fixing plate (8) and the electric slide plate (6) are arranged in parallel.

3. The laser cutting device for producing loom accessories according to claim 1, characterized in that: The front and rear side walls of the containing groove (2) are both provided with a second electric slide groove (9), the containing groove (2) is provided with an electric slide member (10) slidably connected to the second electric slide groove (9), the upper end of the electric slide member (10) is provided with an electric scraper (11), the electric scraper (11) is located below the material plate and has a telescopic function.

4. The laser cutting device for producing loom accessories according to claim 1, characterized in that: The rear magnetic plate (17) is designed in an inverted step shape and faces one side of the outer block (18).

5. The laser cutting device for producing loom accessories according to claim 4, characterized in that: The laser emitting mechanism comprises a laser housing (12) fixedly mounted at the middle position of the lower end of the laser control component (5); a ceramic ring (13) is fixedly mounted inside the lower end of the laser housing (12); a plurality of magnetic blocks (15) are arranged in a circular array on the upper end surface of the ceramic ring (13); the upper ends of the plurality of magnetic blocks (15) are commonly connected to an electromagnetic coil (16); and a nozzle (14) is detachably mounted on the lower end of the ceramic ring (13).

6. The laser cutting device for producing loom accessories according to claim 1, characterized in that: A spiral air duct (20) is installed in the inner groove (19), and the spiral air duct (20) is connected to an air pump built into the laser control component (5).

7. The laser cutting device for producing loom accessories according to claim 1, characterized in that: A plurality of spoilers (22) are staggeredly distributed inside the side wind slot (21).

8. The laser cutting device for producing loom accessories according to claim 7, characterized in that: The angle adjustment mechanism comprises a rotating ball (23) rotatably mounted at the outlet of the side wind slot (21); the rotating ball (23) is designed to be through-through from left to right; an electric shaft (24) is provided at the middle position of the front and rear sides of the rotating ball (23); the electric shaft (24) is fixedly mounted on the outer block (18), and a working end thereof is fixedly connected to the rotating ball (23).

9. The laser cutting device for producing loom accessories according to claim 1, characterized in that: The outer ring (26) is composed of two offset half rings. The side walls of the inner ring (25) and the outer ring (26) are both provided with cavities, and the cavities inside the two rings are connected. A plurality of outer flow openings (28) are evenly distributed on the inner wall of the outer ring (26), and the outer flow openings (28) are connected to the cavities in the side wall of the outer ring (26). A plurality of inner flow openings (27) are evenly distributed on the inner wall of the inner ring (25), and the inner flow openings (27) are connected to the cavities in the side wall of the inner ring (25), and the inner flow openings (27) are inclined toward one side of the outer ring (26). A ventilation component is provided between the outer ring (26) and the side wind slot (21).

10. The laser cutting device for producing loom accessories according to claim 9, characterized in that: The ventilation assembly comprises an outer air duct (30) fixedly mounted on the outer ring (26); the outer air duct (30) is connected to a cavity in the side wall of the outer ring (26) via a groove provided on the side wall of the outer ring (26); inner air ducts (29) are provided on both upper and lower sides of the side air slot (21); one end of the inner air duct (29) is connected to the interior of the side air slot (21), and the other end is connected to the outer air duct (30).

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