Air supply device of air jet loom

Abstract

The utility model discloses an air supply device of an air jet loom, which comprises an air supply machine, a plurality of air supply pipes, a plurality of air supply pipes, a plurality of air supply pipes and a plurality of air supply pipes, wherein the bottom of the air supply machine is fixedly provided with a bottom plate; the inverted U-shaped seat is fixed on the left side of the top of the bottom plate; and the bottom of the cylinder is provided with an opening and is fixedly connected with the top of the inverted U-shaped seat. According to the utility model, a series of structures are arranged, so that extracted and supplied gas can be filtered to intercept solid residues, floating objects and impurities, the filter screens on the two sides can be conveniently, regularly and automatically shielded, cleaned and dredged in a back-blowing manner, the impurities discharged by back-blowing are intensively collected, and the impurities can be cleaned and dredged in a back-blowing manner in an alternate utilization and alternate back-blowing cleaning and dredging manner. The filter screen can be dismounted and cleaned without shutdown by personnel, the use automation degree is improved, the frequency of manual operation is greatly reduced by utilizing the characteristics that dust and impurities are tiny, the occupied space is extremely small, an external breathable dust collection cloth bag needs to be dismounted and replaced once for a long time or several days, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of air-jet loom technology, specifically to an air supply device for an air-jet loom. Background Technology

[0002] Air-jet looms are shuttleless looms that use jet airflow to guide the weft yarn through the shed. Their working principle involves using air as the weft-guiding medium, with the compressed airflow generating frictional traction to pull the weft yarn through the shed. The jet of air achieves the purpose of weft insertion. The air supply device supplies air to the air-jet loom. However, when supplying air, airborne debris can easily be introduced into the machine, causing internal damage and reducing its lifespan.

[0003] According to a search report from a novelty search agency, announcement number CN216688521U discloses an air supply device for a jet loom, including a base, a pedestal fixedly connected to the side wall of the base, an air supply unit fixedly mounted on the surface of the base, a connecting pipe connected to the surface of the air supply unit, a filter structure on the surface of the pedestal, the filter structure including a filter tube, the bottom end of the filter tube fixedly connected to the pedestal, the filter tube communicating with the connecting pipe, a support plate fixedly connected to the inner wall of the filter tube, a ring slidably connected to the inner wall of the filter tube, a filter screen fixedly connected to the inner wall of the ring, and a rectangular rod vertically slidably inserted at the top of the filter tube, with a limit block fixedly connected to the surface of the rectangular rod. This device solves the problem that because airborne debris is easily generated, direct air intake can easily introduce debris into the machine, causing internal damage and reducing the machine's service life.

[0004] The above-mentioned technology discloses an air supply device for a jet loom. By setting a filter pipe at the air inlet of the air supply machine and setting a filter screen on the inner side of the top of the filter pipe, the air supply machine can filter and intercept solid impurities floating in the gas when it draws in external gas, so as to ensure that external solid impurities are avoided when its air outlet supplies air to the air supply end of the jet loom. However, the following shortcomings still exist in use.

[0005] As the filter screen intercepts impurities, solid slag and floating matter inevitably accumulate and cover the outside of the filter screen, affecting the smooth flow of air. This requires frequent machine shutdowns for disassembly and cleaning of the filter screen, which is inefficient and lacks automation and convenience. Therefore, this application proposes an air supply device for a jet loom to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide an air supply device for a jet loom to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an air supply device for an air-jet loom, comprising:

[0008] The air supply unit has a base plate fixedly installed at its bottom, and its air inlet is connected to an L-shaped connecting pipe.

[0009] An inverted U-shaped base is fixed to the top left side of the base plate;

[0010] A cylindrical tube has an open bottom that is fixedly connected to the top of an inverted U-shaped seat. Air inlets are located on both inner walls of the tube, and filter screens are fixedly installed inside the air inlets. The top end of an L-shaped connecting pipe passes through the inverted U-shaped seat and extends into the tube. An air supply unit is provided to draw gas from inside the tube through the L-shaped connecting pipe and to supply gas by connecting its outlet to the air supply pipe of a jet loom. When gas is drawn from inside the tube, external gas is drawn through the filter screen on the left side. The filter screen is used to filter and intercept solid impurities in the external gas as it enters.

[0011] The PLC controller is fixedly installed on the top left side of the base plate;

[0012] The rotary drive baffle hole cleaning and unblocking assembly is installed on the inverted U-shaped seat and electrically connected to the PLC controller. The rotary drive baffle hole cleaning and unblocking assembly is in movable contact with the inner wall of the right side of the cylinder and is laterally aligned and connected with the air inlet on the right side.

[0013] The alternating ventilation cleaning component with cover and redirection is fitted onto the outside of the cylinder and fixedly connected to the top of the rotary drive baffle hole cleaning and unblocking component. The rotary drive baffle hole cleaning and unblocking component is used to automatically and periodically cover and backflush the two filter screens under the control of the PLC controller, and drives the alternating ventilation cleaning component with cover and redirection to rotate. When the component rotates, the user can alternately unseal the two filter screens and collect the impurities discharged from the blown-out filter.

[0014] Preferably, the rotary drive baffle hole cleaning and unblocking assembly includes a fixed box fixedly connected to the inner wall of the top of the inverted U-shaped seat. An L-shaped tube with a sealing structure at the bottom end is rotatably embedded between the bottom of the fixed box and the top of the inverted U-shaped seat. The right end of the L-shaped tube is connected to and fixedly connected to an air distribution box. The right side of the air distribution box has an arc-shaped structure and is in movable contact with the inner wall of the right side of the cylinder. The right side of the air distribution box has multiple cleaning holes that are horizontally aligned and connected to the air inlet on the right side. An air pump with an air outlet connected to and fixedly connected to the left side of the fixed box is fixedly installed on the inner wall of the top of the inverted U-shaped seat. The air inlet of the air pump extends into the cylinder. A servo motor with an output shaft fixedly installed on the top of the base plate and fixedly connected to the bottom end of the L-shaped tube is fixedly connected. The servo motor and the air pump are both electrically connected to the PLC controller. A linkage shaft is fixedly connected to the top of the L-shaped tube. The cylinder is rotatably sleeved on the linkage shaft. Ventilation holes located in the fixed box are opened on the bottom of all four sides of the L-shaped tube.

[0015] Preferably, the sleeve-covering and reversing alternating ventilation cleaning assembly includes a circular sleeve movably sleeved on the outside of the cylinder, the left side of the circular sleeve having a connecting hole connected to the left air inlet, the top of the circular sleeve being fixedly connected to a sealing plate, and the bottom center of the sealing plate being fixedly connected to the top of the linkage shaft.

[0016] The right side of the circular sleeve is fitted with a slag discharge pipe that is horizontally aligned and connected to the air inlet on the right side. The left end of the slag discharge pipe is configured as a cover-shaped structure. An inner threaded sleeve is screwed onto the outer side of the slag discharge pipe. A breathable dust collection bag is connected and fixed to the right side of the inner threaded sleeve.

[0017] Preferably, the top of the inverted U-shaped seat and the bottom of the fixing box are provided with circular through holes, and a first sealing bearing is fixedly sleeved in the circular through hole. The inner rings of the two first sealing bearings are fixedly sleeved with the outer side of the L-shaped tube.

[0018] Preferably, the top of the cylinder has a through hole, and a second sealing bearing is fixedly sleeved inside the through hole. The inner ring of the second sealing bearing is fixedly sleeved with the outer side of the linkage shaft.

[0019] Preferably, the outer side of the slag discharge pipe is provided with an external thread that can be screwed into the internal thread.

[0020] Preferably, an L-shaped baffle is fixedly connected to the bottom right side of the circular baffle, and the breathable dust collection bag is located inside the L-shaped baffle.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. By using a set air supply unit, L-shaped connecting pipe, inverted U-shaped seat, cylinder, air inlet and filter screen, the extracted and supplied gas is filtered to intercept solid slag and floating impurities, thus preventing a large amount of solid slag and floating impurities from entering the air-jet loom.

[0023] 2. By combining the set cylinder, air inlet, filter screen, rotary drive baffle hole cleaning and unblocking components with PLC controller, it can automatically and periodically block and back-blow the filter screens on both sides for cleaning and unblocking. By using the alternating use and alternating back-blow cleaning and unblocking method, there is no need for personnel to disassemble and install the filter screen for cleaning, thus improving the degree of automation.

[0024] 3. Through the combination of the cylindrical tube, air inlet, filter screen, swirl drive baffle hole blowing and unblocking components and the sleeve shielding and diversion alternating ventilation cleaning components, the impurities discharged during back-blowing cleaning can be collected in a concentrated manner, avoiding the phenomenon of dust and impurities being directly dispersed into the air in large quantities. In addition, the dust and impurities are small, occupy very little space, and only need to be disassembled and replaced once every few days or a long time. The breathable dust collection bag is located on the outside for easy direct disassembly and replacement, reducing the frequency of manual cleaning and improving the convenience of use.

[0025] This utility model, through a series of structures, can filter and intercept solid slag and floating impurities in the extracted and supplied gas. It facilitates the automatic alternating blocking and backflushing cleaning of the filter screens on both sides at regular intervals, and collects the impurities discharged by backflushing. By using alternating use and alternating backflushing cleaning, there is no need for personnel to stop the machine to disassemble and clean the filter screen, which improves the degree of automation. In addition, since the dust and impurities are small and occupy very little space, and the external breathable dust collection bag only needs to be disassembled and replaced every few days, the frequency of manual operation is greatly reduced, improving the convenience of use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the air supply device for a jet loom proposed in this utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure viewed from below;

[0028] Figure 3 This is a schematic diagram of the main cross-sectional view of an air supply device for a jet loom proposed in this utility model;

[0029] Figure 4 for Figure 3 A magnified structural diagram of part A in the diagram.

[0030] In the diagram: 1. Base plate; 101. Air supply unit; 102. L-shaped connecting pipe; 2. Inverted U-shaped seat; 201. Servo motor; 202. L-shaped pipe; 203. Air distribution box; 204. Cleaning hole; 205. Vent hole; 206. Fixing box; 207. Air pump; 208. Linkage shaft; 3. Cylinder; 301. Air inlet; 302. Filter screen; 4. Round retaining sleeve; 401. Connecting hole; 5. Slag discharge pipe; 501. Breathable dust collection bag; 502. L-shaped baffle; 6. PLC controller. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 4 As shown, the air supply device for a jet loom proposed in this embodiment includes:

[0033] The air supply unit 101 has a base plate 1 fixedly installed at its bottom, and an L-shaped connecting pipe 102 is fixedly connected to its air inlet.

[0034] The inverted U-shaped seat 2 is fixed to the top left side of the base plate 1;

[0035] The cylinder 3 has an open bottom that is fixedly connected to the top of the inverted U-shaped seat 2. Air inlets 301 are provided on both inner walls of the cylinder 3. A filter screen 302 is fixedly installed inside the air inlet 301. The top end of the L-shaped connecting pipe 102 is fixedly inserted through the inverted U-shaped seat 2 and extends into the cylinder 3. The air supply machine 101 is used to draw gas from the inside of the cylinder 3 through the L-shaped connecting pipe 102 and to supply gas by connecting its outlet to the air supply pipe of the air jet loom. When gas is drawn into the cylinder 3, external gas is drawn through the filter screen 302 on the left side. The filter screen 302 is used to filter and intercept solid impurities in the gas when the external gas enters.

[0036] The PLC controller 6 is fixedly installed on the top left side of the base plate 1;

[0037] The rotary drive baffle hole cleaning and unblocking assembly is installed on the inverted U-shaped seat 2 and electrically connected to the PLC controller 6. The rotary drive baffle hole cleaning and unblocking assembly is in movable contact with the inner wall of the right side of the cylinder 3 and is laterally aligned and connected with the air inlet 301 on the right side.

[0038] The alternating ventilation cleaning component with cover and redirection is sleeved on the outside of the cylinder 3 and fixedly connected to the top of the rotary drive baffle hole cleaning and unblocking component. The rotary drive baffle hole cleaning and unblocking component is used to automatically and periodically cover and back-blow clean the two filters 302 under the control of the PLC controller 6, and drives the alternating ventilation cleaning component with cover and redirection to rotate. When the alternating ventilation cleaning component with cover and redirection is rotated, the user can alternately unseal the two filters 302 and collect the impurities discharged from the blown-out filter.

[0039] Specifically, the rotary drive baffle hole cleaning and unblocking assembly includes a fixed box 206 fixedly connected to the inner wall of the top of the inverted U-shaped seat 2. An L-shaped tube 202 with a sealing structure at its bottom end is rotatably fitted between the bottom of the fixed box 206 and the top of the inverted U-shaped seat 2. Both the top of the inverted U-shaped seat 2 and the bottom of the fixed box 206 have circular through holes. A first sealing bearing is fixedly fitted inside the circular through hole. The inner rings of the two first sealing bearings are fixedly fitted to the outer side of the L-shaped tube 202, achieving a sealing and rotating installation effect for the L-shaped tube 202. A distribution box 203 is fixedly connected to the right end of the L-shaped tube 202. The right side of the distribution box 203 has an arc-shaped structure and is in movable contact with the inner wall of the right side of the cylinder 3. Multiple cleaning holes 204 are provided on the right side of the distribution box 203, all horizontally aligned and connected to the right-side air inlet 301. An air pump 207 with an air outlet connected to the left side of the fixed box 206 is fixedly installed on the top inner wall of the inverted U-shaped seat 2. The air inlet of the air pump 207 extends into the cylinder 3. A servo motor 201 with an output shaft fixedly connected to the bottom end of the L-shaped tube 202 is fixedly installed on the top of the base plate 1. Both the servo motor 201 and the air pump 207 are electrically connected to the PLC controller 6. A linkage shaft 208 is fixedly connected to the top of the L-shaped tube 202. The cylinder 3 is rotatably mounted on the linkage shaft 208. A through hole is opened at the top of the cylinder 3. A second sealing bearing is fixedly mounted in the through hole. The inner ring of the second sealing bearing is fixedly mounted on the outer side of the linkage shaft 208, which achieves the effect of sealing the linkage shaft 208 for rotational installation. Vent holes 205 located in the fixed box 206 are opened on the bottom of the four sides of the L-shaped tube 202.

[0040] The system consists of a fixed box 206, an L-shaped tube 202, an air distribution box 203, a cleaning hole 204, a linkage shaft 208, a vent 205, a servo motor 201, and an air pump 207. The PLC controller 6 is pre-programmed to control the start-up time of the servo motor 201 and the air pump 207. Specifically, the servo motor 201 is pre-programmed to start half a revolution each time, and the time interval between the on and off of the air pump 207 is set to thirty seconds. When the cleaning time is reached, the PLC controller... 6. The servo motor 201 and air pump 207 are turned on. The servo motor 201 drives the L-shaped tube 202 to rotate half a turn. The L-shaped tube 202 drives the air distribution box 203 to rotate to the left, blocking the air inlet 301 on the left side. The air pump 207 draws a portion of the filtered gas from the cylinder 3 and supplies it into the fixed box 206. The gas enters the L-shaped tube 202 through four vents 205, then enters the air distribution box 203, and then is blown out to the left through multiple cleaning holes 204. The filter screen 302 on the side is backflushed for cleaning and unblocking. After thirty seconds, the PLC controller 6 controls the air pump 207 to turn off. When the next set cleaning time is reached, it controls the servo motor 201 and the air pump 207 to turn on again. The servo motor 201 drives the L-shaped tube 202 to rotate half a turn. At this time, the L-shaped tube 202 drives the air distribution box 203 to rotate to the right side to block the air inlet 301 on the right side. The supplied air is then blown out to the right through multiple blowing holes 204 to backflush and clean the filter screen 302 on the right side. After thirty seconds, the PLC controller 6 controls the air pump 207 to turn off again. When the next set cleaning time is reached, it turns on again to perform alternating blocking, blowing, and utilization work. This achieves the effect of timed automatic alternating blocking and backflushing cleaning and unblocking of the filter screens 302 on both sides. By using the alternating utilization and alternating backflushing cleaning and unblocking method, there is no need for personnel to disassemble and clean the filter screen 302 separately, improving the degree of automation.

[0041] Furthermore, the alternating ventilation and cleaning assembly includes a circular sleeve 4 that is movably sleeved on the outside of the cylinder 3. The left side of the circular sleeve 4 has a connecting hole 401 that communicates with the air inlet 301 on the left side. A sealing plate is fixedly connected to the top of the circular sleeve 4, and the bottom center of the sealing plate is fixedly connected to the top of the linkage shaft 208.

[0042] The right side of the round sleeve 4 is fitted with a slag discharge pipe 5 that is horizontally aligned and connected to the air inlet 301 on the right side. The left end of the slag discharge pipe 5 is set as a cover-shaped structure. The outer side of the slag discharge pipe 5 is threaded with an inner thread sleeve. The right side of the inner thread sleeve is connected and fixed with a breathable dust collection bag 501. The outer side of the slag discharge pipe 5 is provided with an external thread that is threaded to the inner thread sleeve. By using the inner thread sleeve to thread the slag discharge pipe 5 through the external thread, it is easy for personnel to separate and connect them by simple rotation, which facilitates the disassembly and assembly of the breathable dust collection bag 501. The bottom right side of the round sleeve 4 is fixedly connected with an L-shaped baffle 502, and the breathable dust collection bag 501 is located inside the L-shaped baffle 502.

[0043] The set includes a circular retaining sleeve 4, a connecting hole 401, a sealing plate, a slag discharge pipe 5, an internal threaded sleeve, and a breathable dust collection bag 501. When the L-shaped pipe 202 rotates, it also drives the linkage shaft 208 to rotate as a whole. The linkage shaft 208, through the sealing plate, drives the circular retaining sleeve 4 to rotate half a turn each time. The rotation of the circular retaining sleeve 4 drives the connecting hole 401 and the breathable dust collection bag 501 to rotate, alternating between the two and connecting to the two air inlets 301 respectively. When using the filter screen 302 on the right side for air intake filtration, the breathable dust collection bag 501 is located on the left side, and the cleaning work is also carried out in this position. The filter 302 on the left side is used for air intake filtration, while the breathable dust collection bag 501 is located on the right side. The cleaning work is also carried out on the right side. The breathable dust collection bag 501 is used to collect the impurities discharged from the back-blowing cleaning, avoiding the phenomenon of dust and impurities directly drifting into the air in large quantities. Since the dust and impurities are small and occupy very little space, they only need to be disassembled and replaced once every few days or a long time. In addition, the breathable dust collection bag 501 is located on the outside, which makes it easy to directly disassemble and replace. This reduces the frequency of manual cleaning and improves the degree of automation and convenience of use.

[0044] The method of use in this embodiment is as follows: When the air supply device for the air-jet loom is used, the air outlet of the air supply machine 101 is connected to the air supply pipe of the air-jet loom. When the air supply machine 101 is started, its air inlet draws gas from the inside of the cylinder 3 through the L-shaped connecting pipe 102, and supplies gas to the air supply pipe of the air-jet loom through its air outlet. When the gas is drawn into the cylinder 3, the external gas is drawn through the filter screen 302 on the left side. When the external gas enters, the filter screen 302 filters and intercepts solid impurities in the gas, thereby achieving the effect of filtering and intercepting solid slag and floating impurities in the gas supplied, and avoiding the phenomenon of a large amount of solid slag and floating impurities entering the air-jet loom.

[0045] Based on the required cleaning intervals or frequency, the PLC controller 6 pre-sets the start-up times of the servo motor 201 and the air pump 207. The servo motor 201 is pre-programmed to start half a revolution each time, and the time interval between the on and off of the air pump 207 is set to thirty seconds. When the cleaning time is reached, the PLC controller 6 controls the servo motor 201 and the air pump 207 to start. The servo motor 201 drives the L-shaped tube 202 to rotate half a revolution. The L-shaped tube 202 drives the air distribution box 203 to rotate to the left, blocking the left air inlet 301 and unblocking the right air inlet 301. At this point, external gas is drawn in through the right air inlet 301 and filtered through the right filter screen 302. Simultaneously, the rotation of the L-shaped tube 202 drives the linkage shaft 208... When the sealing plate rotates, it drives the circular retaining sleeve 4 to rotate half a turn. The circular retaining sleeve 4 drives the connecting hole 401 and the breathable dust collection bag 501 to rotate, so that the connecting hole 401 also rotates to align with the air inlet 301 on the right side. The breathable dust collection bag 501 rotates to the left side and aligns with the air inlet 301 on the left side. When the air pump 207 starts, it draws a portion of the filtered gas in the cylinder 3 and supplies it into the fixed box 206. The gas enters the L-shaped pipe 202 through the four vent holes 205, then enters the air distribution box 203, and then blows out to the left through multiple cleaning holes 204 to back-blow and clean the filter screen 302 on the left side. The solid slag and impurities cleaned by back-blowing enter the breathable dust collection bag 501 through the slag discharge pipe 5. The gas is discharged through the breathable dust collection bag 501. After thirty seconds, the PLC controller 6 controls the air pump 207 to shut down.

[0046] When the next set cleaning time is reached, PLC controller 6 again controls servo motor 201 and air pump 207 to start. Servo motor 201 drives L-shaped tube 202 to rotate half a turn. At this time, L-shaped tube 202 drives air distribution box 203 to rotate to the right, blocking the right air inlet 301 and unblocking the left air inlet 301. At this time, connecting hole 401 rotates to align with the left air inlet 301 and connects. Breathable dust collection bag 501 rotates to align with the right air inlet 301 and connects. At this time, it changes position again to use the left filter screen 302 for filtration. The supplied air is then blown to the right through multiple blowing holes 204 to back-blow and clean the right filter screen 302. After thirty seconds, PLC controller 6 again... The air pump 207 is turned off and restarted after the next set cleaning time to perform alternating shielding and backflushing cleaning and utilization. This achieves the effect of timed automatic alternating shielding and backflushing cleaning and unblocking of the filters 302 on both sides. By using alternating utilization and alternating backflushing cleaning and unblocking, there is no need for personnel to disassemble and clean the filters 302 individually, which improves the degree of automation. Furthermore, by collecting the impurities that are cleared by backflushing, the phenomenon of dust and impurities being directly dispersed into the air in large quantities is avoided. The dust and impurities are small, occupy very little space, and only need to be disassembled and replaced every few days. In addition, the breathable dust collection bag 501 is located on the outside for easy direct disassembly and replacement, reducing the frequency of manual operation and improving the convenience of use.

[0047] The PLC controller 6, servo motor 201, and air pump 207 in this utility model are well known to those skilled in the art and belong to conventional methods or common knowledge. Those skilled in the art can arbitrarily select and match them according to their needs or convenience. In addition, the programming of the PLC controller 6 to set the start time of the servo motor 201, the start and stop time of the air pump 207, and the number of motion circles of the servo motor 201 each time it starts, and to perform corresponding automatic control of start and stop, are basic programming parameters and numerical control methods well known to those skilled in the art. These all belong to conventional methods or common knowledge of programming controllers for programmers and will not be described in detail here.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air supply device for an air jet loom comprising an air supply machine (101), characterized in that: The utility model provides a kind of air supply machine, including: Air supply machine (101), bottom fixed mounting has bottom plate (1), its air inlet is connected with L-shaped connecting pipe (102) fixedly; Inverted U-shaped seat (2), fixed in the top left side of bottom plate (1); Cylinder (3), its bottom is provided as opening and is fixedly connected with the top of inverted U-shaped seat (2), the two side inner walls of the cylinder (3) are all provided with air inlet hole (301), air inlet hole (301) is fixedly installed with filter screen (302), the top of L-shaped connecting pipe (102) is fixedly penetrated inverted U-shaped seat (2) and extends to cylinder (3) inside; PLC controller (6), fixedly installed in the top left side of bottom plate (1); Rotary drive hole blocking blowing clearance dredging assembly, is installed in inverted U-shaped seat (2) and is electrically connected with PLC controller (6), rotary drive hole blocking blowing clearance dredging assembly and the right side inner wall of cylinder (3) are in movable contact, and the right side air inlet hole (301) is transversely aligned and communicated; Covering and shading direction alternation ventilation cleaning assembly, covering and setting in the outside of cylinder (3) and being fixedly connected with the top of rotary drive hole blocking blowing clearance dredging assembly.

2. A gas supply device for a gas jet loom according to claim 1, characterized in that: The rotary drive hole blocking blowing clearance dredging assembly includes the fixed box (206) fixedly connected on the top inner wall of inverted U-shaped seat (2), the bottom of the fixed box (206) and the top of inverted U-shaped seat (2) are rotatably embedded with the same L-shaped pipe (202) with the bottom end of the blocking structure, the right end of the L-shaped pipe (202) is communicated and fixed with the gas distribution box (203), the right side of the gas distribution box (203) is arc structure and is in movable contact with the right side inner wall of cylinder (3), the right side of the gas distribution box (203) is provided with a plurality of blowing holes (204) which are transversely aligned and communicated with the right side air inlet hole (301), the top inner wall of inverted U-shaped seat (2) is fixedly installed with the air outlet, the gas pump (207) is fixedly connected with the left side of fixed box (206), the air inlet of gas pump (207) extends to cylinder (3) inside, the top of bottom plate (1) is fixedly installed with the output shaft, the servo motor (201) is fixedly connected with the bottom end of L-shaped pipe (202), the servo motor (201) and gas pump (207) are electrically connected with PLC controller (6), the top of L-shaped pipe (202) is fixedly connected with the linkage shaft (208), cylinder (3) is rotatably covered in linkage shaft (208), the four side bottoms of L-shaped pipe (202) are all provided with the ventilation hole (205) in fixed box (206).

3. A gas supply device for a gas jet loom according to claim 2, characterized in that: The covering and shading direction alternation ventilation cleaning assembly includes the round blocking sleeve (4) movably covered in the outside of cylinder (3), the left side of the round blocking sleeve (4) is provided with the communication hole (401) communicated with the left side air inlet hole (301), the top of the round blocking sleeve (4) is fixedly connected with the sealing plate, and the bottom center of the sealing plate is fixedly connected with the top end of linkage shaft (208); The right side of the round blocking sleeve (4) is embedded and fixed with the residue discharge pipe (5) which is transversely aligned and communicated with the right side air inlet hole (301), the left end of the residue discharge pipe (5) is provided as a cover structure, and the outer side of the residue discharge pipe (5) is threadedly screwed with the internal thread sleeve, and the right side of the internal thread sleeve is communicated and fixed with the breathable dust collecting bag (501).

4. A gas supply device for a gas jet loom according to claim 2, characterized in that: The top of the inverted U-shaped seat (2) and the bottom of the fixing box (206) are provided with circular through holes, and first sealing bearings are fixedly sleeved in the circular through holes.

5. A gas supply device for a gas jet loom according to claim 2, characterized in that: The top of the cylinder (3) is provided with a circular through hole, and a second sealing bearing is fixedly sleeved in the circular through hole.

6. A gas supply device for a gas jet loom according to claim 3, characterized in that: The outer side of the slag discharge pipe (5) is provided with an outer thread which is threadedly connected with an inner thread sleeve.

7. A gas supply device for a gas jet loom according to claim 3, characterized in that: The right bottom of the circular baffle sleeve (4) is fixedly connected with an L-shaped baffle (502), and the air-permeable dust collecting bag (501) is located in the L-shaped baffle (502).

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