Device and method for removing burrs from inner hole of auxiliary main nozzle of air jet loom

Abstract

The present invention discloses a deburring device for the inner hole of an auxiliary main nozzle of an air jet loom, which comprises an abrasive pipeline, one end of which is sealed and connected to an abrasive box, the other end of which is sealed and connected to the spray hole of the auxiliary main nozzle of the air jet loom, and the air inlet of the auxiliary main nozzle of the air jet loom is sealed and connected to an air pump for decompressing the auxiliary main nozzle of the air jet loom, so as to facilitate the removal of burrs in the inner hole. The present invention also discloses a deburring method for the inner hole of the auxiliary main nozzle of an air jet loom, which comprises an abrasive pipeline, firstly, an air extraction valve is opened, and the air flow in the inner cavity of the auxiliary main nozzle of the air jet loom forms a suction force on the abrasive in the abrasive box, then the air extraction valve is closed, and then the air intake valve is opened, and the air intake pump blows air into the auxiliary main nozzle of the air jet loom through the air intake pipeline, and the air flow in the inner cavity of the auxiliary main nozzle of the air jet loom forms an extrusion force on the abrasive in the auxiliary main nozzle of the air jet loom, and the abrasive in the auxiliary main nozzle of the air jet loom flows along the abrasive pipeline to the abrasive box.

Description

Technical Field

[0001] The invention relates to a deburring device and a deburring method for an inner hole of an auxiliary main nozzle of an air jet loom. Background Art

[0002] The weft insertion of the air jet loom uses compressed air as the weft insertion carrier. The high-speed airflow generated when the compressed air is released through the small holes is used to pull the weft yarn through the shed to complete its weft insertion function.

[0003] The early weft insertion system of the air jet loom used a multi-hole nozzle to directly inject air into the shed for weft insertion. This weft insertion method has serious air diffusion, and the air flow velocity drops rapidly in the shed. The air flow at the shed outlet is turbulent, and the weft yarn cannot be effectively pulled. The effective length of weft insertion is less than 1m, and weaving defects such as weft shrinkage and missing weft are difficult to avoid. In addition, the air pressure required for weft insertion is high, and the power consumption is large. The emergence of the duct sheet effectively reduces the diffusion of air flow and increases the air flow velocity at the shed outlet, providing favorable conditions for smooth weft insertion. The auxiliary nozzle, also known as the relay nozzle, sprays air flow obliquely upward in the direction of weft yarn travel. The auxiliary nozzle sprays before the weft yarn arrives, driving the air movement in front of the weft yarn, reducing the air resistance to the weft yarn, and the auxiliary nozzle generates a relative negative pressure at the front end of the weft yarn, which has an attractive effect on the weft yarn. The main function of the auxiliary nozzle is to supplement the energy of the main jet flow, so that the weft insertion air flow maintains a certain speed and sends the weft yarn through the shed in a relay manner.

[0004] Common auxiliary nozzles are made of brass for their bases and stainless steel for their nozzles, with high wear-resistant paint on the surface. However, burrs are often found inside the nozzles. Although small, burrs are very harmful, which can harm processing, assembly, inspection, product performance, and service life. Due to the complex internal structure and small shape of the nozzles, it is currently difficult to remove the burrs on the inner hole, and they can only be directly treated as waste, which greatly wastes materials and increases production costs.

[0005] In view of this, overcoming the defects of the above-mentioned prior art is an urgent problem to be solved in the field of this technology. Summary of the invention

[0006] The technical problem solved by the invention is to provide a simple deburring device for the inner hole of an auxiliary main nozzle of an air jet loom.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a deburring device for the inner hole of the auxiliary main nozzle of the jet loom, which includes an abrasive pipeline, one end of the abrasive pipeline is sealed and connected to an abrasive box, the other end of the abrasive pipeline is sealed and connected to the spray hole of the auxiliary main nozzle of the jet loom, and the air inlet of the auxiliary main nozzle of the jet loom is sealed and connected to an air pump for reducing the pressure in the auxiliary main nozzle of the jet loom.

[0008] Furthermore, the air inlet of the auxiliary main nozzle of the jet loom is also sealed and connected to an air intake pump for pressurizing the inside of the auxiliary main nozzle of the jet loom, the output end of the air intake pump is connected to an air intake pipe, the output end of the exhaust pump is connected to an exhaust pipe, a main pipe is provided at one end of the air intake pipe away from the air intake pump, one end of the main pipe away from the air intake pipe is sealed and connected to the air inlet of the auxiliary main nozzle of the jet loom, and the other end of the main pipe is sealed and connected to the exhaust pipe.

[0009] Furthermore, the air intake pipe is provided with an air intake valve, and the air exhaust pipe is provided with an air exhaust valve.

[0010] Furthermore, a sealing ring is provided at one end of the abrasive pipe extending into the spray hole of the auxiliary main nozzle of the air jet loom.

[0011] Furthermore, a limiting ring for blocking and limiting is provided at one end of the abrasive pipe close to the spray hole of the auxiliary main nozzle of the air jet loom.

[0012] Furthermore, a rubber gasket for protecting the spray hole is arranged at one end of the limiting ring close to the spray hole of the auxiliary main nozzle of the air jet loom.

[0013] The technical problem solved by the invention is to provide a simple method for removing burrs from the inner hole of an auxiliary main nozzle of an air jet loom.

[0014] The technical solution adopted by the present invention to solve its technical problem is: a method for deburring the inner hole of the auxiliary main nozzle of an air jet loom, which includes an abrasive pipeline, one end of the abrasive pipeline is sealed and connected with an abrasive box, the other end of the abrasive pipeline is sealed and connected with the spray hole of the auxiliary main nozzle of the air jet loom, the air inlet of the auxiliary main nozzle of the air jet loom is sealed and connected with an air pump for reducing the pressure in the auxiliary main nozzle of the air jet loom, the air inlet of the auxiliary main nozzle of the air jet loom is also sealed and connected with an air intake pump for pressurizing the inside of the auxiliary main nozzle of the air jet loom, the output end of the air intake pump is connected with an air intake pipeline, the output end of the air intake pump is connected with an air extraction pipeline, the end of the air intake pipeline away from the air intake pump is provided with a main pipeline, the end of the main pipeline away from the air intake pipeline is sealed and connected with the air inlet of the auxiliary main nozzle of the air jet loom, the other end of the main pipeline is sealed and connected with the air extraction pipeline, the air intake pipeline is provided with an air intake valve, and the air extraction pipeline is provided with an air extraction valve. The method comprises the following steps:

[0015] Step 1: The nozzle hole of the auxiliary main nozzle of the air jet loom is sealed and connected to the abrasive pipeline, and the air inlet of the auxiliary main nozzle of the air jet loom is sealed and connected to the main pipeline.

[0016] Step 2: Open the vacuum valve, and the vacuum pump will evacuate the air in the auxiliary main nozzle of the jet loom through the vacuum pipe. The airflow in the inner cavity of the auxiliary main nozzle of the jet loom will form suction on the abrasive in the abrasive box, and the abrasive in the abrasive box will flow into the inner cavity of the auxiliary main nozzle of the jet loom.

[0017] Step 3: Close the exhaust valve.

[0018] Step 4: Open the air inlet valve, and the air pump blows air into the auxiliary main nozzle of the jet loom through the air inlet pipe. The airflow in the inner cavity of the auxiliary main nozzle of the jet loom forms an extrusion force on the abrasive in the auxiliary main nozzle of the jet loom, and the abrasive in the auxiliary main nozzle of the jet loom flows along the abrasive pipe to the abrasive box.

[0019] Furthermore, a sealing ring is provided at one end of the abrasive pipe extending into the spray hole of the auxiliary main nozzle of the air jet loom.

[0020] Furthermore, a limiting ring for blocking and limiting is arranged at one end of the abrasive pipe close to the spray hole of the auxiliary main nozzle of the jet loom, and a rubber gasket for protecting the spray hole is arranged at one end of the limiting ring close to the spray hole of the auxiliary main nozzle of the jet loom.

[0021] The beneficial effects of the present invention are as follows: the vacuum pump draws air from the auxiliary main nozzle through the air inlet, the air pressure in the auxiliary main nozzle is lower than the external atmospheric pressure to form suction, the abrasive in the abrasive box enters the auxiliary main nozzle through the abrasive pipe, the abrasive grinds each inner hole of the nozzle through the high-speed airflow to remove burrs, and the problem that the nozzle cannot be used is solved; the nozzle air inlet is connected to the main pipe, and after the abrasive enters each inner hole, the vacuum pump is closed and the air inlet pump is turned on, so that the air pressure in the nozzle is greater than the external air pressure, and the abrasive grinds the inner hole through the high-speed airflow and returns to the abrasive box, which is convenient for reciprocating grinding to remove burrs; it is convenient to control them separately without affecting each other; the sealing effect is good; and the damage to the spray hole is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A partial schematic diagram of a deburring device for the inner hole of an auxiliary main nozzle of an air jet loom.

[0023] Figure 2 Schematic diagram of the deburring device for the inner hole of the auxiliary main nozzle of the air jet loom.

[0024] Marked in the figure are: abrasive pipeline 1, abrasive box 2, air intake pump 3, air exhaust pump 4, air intake pipeline 31, air exhaust pipeline 41, main pipeline 5, air intake valve 32, air exhaust valve 42, sealing ring 6, limit ring 7, rubber gasket 8. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figure 1 and Figure 2As shown, the deburring device for the inner hole of the auxiliary main nozzle of the jet loom comprises an abrasive pipe 1, one end of the abrasive pipe 1 is sealed and connected to an abrasive box 2, the other end of the abrasive pipe 1 is sealed and connected to the spray hole of the auxiliary main nozzle of the jet loom, and the air inlet of the auxiliary main nozzle of the jet loom is sealed and connected to an air pump 4 for reducing the pressure in the auxiliary main nozzle of the jet loom.

[0027] When in use, the vacuum pump 4 draws air from the auxiliary main nozzle through the air inlet. The air pressure inside the auxiliary main nozzle is lower than the external atmospheric pressure to form suction. The abrasive in the abrasive box 2 enters the auxiliary main nozzle through the abrasive pipe 1. The abrasive grinds the inner holes of the nozzle through the high-speed airflow to remove burrs, thus solving the problem of the nozzle being unusable.

[0028] like Figure 1 and Figure 2 As shown, the air inlet of the auxiliary main nozzle of the jet loom is also sealed and connected to the air intake pump 3 for pressurizing the inside of the auxiliary main nozzle of the jet loom, the output end flange of the air intake pump 3 is connected to the air intake pipe 31, the output end of the air extraction pump 4 is connected to the air extraction pipe 41, the end flange of the air intake pipe 31 away from the air intake pump 3 is connected to the main pipe 5, the end of the main pipe 5 away from the air intake pipe 31 is sealed and connected to the air inlet of the auxiliary main nozzle of the jet loom, and the other end of the main pipe 5 is sealed and connected to the air extraction pipe 41. The nozzle air inlet is connected to the main pipe 5, and after the abrasive enters each inner hole, the air extraction pump 4 is closed and the air intake pump 3 is opened, so that the air pressure in the nozzle is greater than the external air pressure, and the abrasive is then polished by the high-speed airflow and returned to the abrasive box 2, which is convenient for reciprocating polishing to remove burrs and for repeated use of the abrasive.

[0029] like Figure 1 and Figure 2 As shown, the air intake pipe 31 is flange-connected with the air intake valve 32, and the air exhaust pipe 41 is flange-connected with the air exhaust valve 42, so that they can be controlled separately without affecting each other.

[0030] like Figure 1 and Figure 2 As shown, one end of the abrasive pipe 1 extending into the spray hole of the auxiliary main nozzle of the air jet loom is sleeved with a sealing ring 6, and the sealing ring 6 extends into the spray hole to ensure sealing.

[0031] like Figure 1 and Figure 2 As shown, a stud at one end of the abrasive pipe 1 close to the spray hole of the auxiliary main nozzle of the air jet loom is connected to a limiting ring 7 for blocking and limiting the abrasive pipe 1.

[0032] like Figure 1 and Figure 2As shown, one end of the limit ring 7 close to the spray hole of the auxiliary main nozzle of the air jet loom is sleeved with a rubber gasket 8 for protecting the spray hole. The rubber gasket 8 can be adhered to the limit ring 7 or sleeved on the abrasive pipe 1 to improve the sealing performance and avoid damage to the spray hole.

[0033] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deburring device for the inner hole of an auxiliary main nozzle of an air jet loom, comprising an abrasive pipe (1), characterized in that: One end of the abrasive pipe (1) is sealedly connected to an abrasive box (2), the other end of the abrasive pipe (1) is sealedly connected to a spray hole of an auxiliary main nozzle of the air jet loom, and the air inlet of the auxiliary main nozzle of the air jet loom is sealedly connected to an air pump (4) for reducing the pressure in the auxiliary main nozzle of the air jet loom; The air inlet of the auxiliary main nozzle of the jet loom is also sealed and connected to an air intake pump (3) for pressurizing the inside of the auxiliary main nozzle of the jet loom; the output end of the air intake pump (3) is connected to an air intake pipe (31); the output end of the air extraction pump (4) is connected to an air extraction pipe (41); a main pipe (5) is provided at one end of the air intake pipe (31) away from the air intake pump (3); one end of the main pipe (5) away from the air intake pipe (31) is sealed and connected to the air inlet of the auxiliary main nozzle of the jet loom; and the other end of the main pipe (5) is sealed and connected to the air extraction pipe (41); The air intake pipeline (31) is provided with an air intake valve (32), and the air extraction pipeline (41) is provided with an air extraction valve (42).

2. The deburring device for the inner hole of the auxiliary main nozzle of the air jet loom according to claim 1, characterized in that: A sealing ring (6) is provided at one end of the abrasive pipe (1) extending into the spray hole of the auxiliary main nozzle of the air jet loom.

3. The deburring device for the inner hole of the auxiliary main nozzle of the air jet loom according to claim 1, characterized in that: A limiting ring (7) for blocking and limiting is provided at one end of the abrasive pipe (1) close to the spray hole of the auxiliary main nozzle of the air jet loom.

4. The deburring device for the inner hole of the auxiliary main nozzle of the air jet loom according to claim 3, characterized in that: A rubber gasket (8) for protecting the spray hole is arranged at one end of the limiting ring (7) close to the spray hole of the auxiliary main nozzle of the air jet loom.

5. A method for deburring the inner hole of an auxiliary main nozzle of an air jet loom, comprising an abrasive pipe (1), characterized in that: One end of the abrasive pipe (1) is sealedly connected to an abrasive box (2), and the other end of the abrasive pipe (1) is sealedly connected to the spray hole of the auxiliary main nozzle of the jet loom. The air inlet of the auxiliary main nozzle of the jet loom is sealedly connected to an air pump (4) for reducing the pressure in the auxiliary main nozzle of the jet loom. The air inlet of the auxiliary main nozzle of the jet loom is also sealedly connected to an air intake pump (3) for increasing the pressure inside the auxiliary main nozzle of the jet loom. The output end of the air intake pump (3) is connected to an air intake pipe (31). The output end of the air pump (4) is connected to an exhaust pipe (41), the end of the air intake pipe (31) away from the air intake pump (3) is provided with a main pipe (5), the end of the main pipe (5) away from the air intake pipe (31) is sealed and connected to the air inlet of the auxiliary main nozzle of the air jet loom, the other end of the main pipe (5) is sealed and connected to the exhaust pipe (41), the air intake pipe (31) is provided with an air intake valve (32), and the exhaust pipe (41) is provided with an exhaust valve (42), the method comprises the following steps: Step 1: The nozzle hole of the auxiliary main nozzle of the air jet loom is sealed and connected to the abrasive pipeline (1), and the air inlet of the auxiliary main nozzle of the air jet loom is sealed and connected to the main pipeline (5). Step 2: Open the air extraction valve (42), and the air extraction pump (4) extracts air from the auxiliary main nozzle of the air jet loom through the air extraction pipe (41). The airflow in the inner cavity of the auxiliary main nozzle of the air jet loom forms a suction force on the abrasive in the abrasive box (2), and the abrasive in the abrasive box (2) flows into the inner cavity of the auxiliary main nozzle of the air jet loom. Step 3: Close the air extraction valve (42). Step 4: Open the air inlet valve (32), and the air inlet pump (3) blows air into the auxiliary main nozzle of the jet loom through the air inlet pipe (31). The airflow in the inner cavity of the auxiliary main nozzle of the jet loom forms an extrusion force on the abrasive in the auxiliary main nozzle of the jet loom, and the abrasive in the auxiliary main nozzle of the jet loom flows along the abrasive pipe (1) to the abrasive box (2).

6. The method for deburring the inner hole of the auxiliary main nozzle of an air jet loom according to claim 5, characterized in that: A sealing ring (6) is provided at one end of the abrasive pipe (1) extending into the spray hole of the auxiliary main nozzle of the air jet loom.

7. The method for deburring the inner hole of the auxiliary main nozzle of an air jet loom according to claim 5, characterized in that: A limiting ring (7) for blocking and limiting is arranged at one end of the abrasive pipe (1) close to the spray hole of the auxiliary main nozzle of the air jet loom, and a rubber gasket (8) for protecting the spray hole is arranged at one end of the limiting ring (7) close to the spray hole of the auxiliary main nozzle of the air jet loom.

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