A raising mechanism for a reed-type air-jet loom and a working method thereof

Abstract

The present invention discloses a raising mechanism for a reed-type air-jet loom, comprising an eccentric shaft, a transmission shaft and a reduction motor. The eccentric shaft is horizontally mounted on the inner wall and the chamber cover of the beating transmission chamber through bearings at both ends. The middle eccentric shaft section of the eccentric shaft can be rotatably inserted into the mounting hole of the double rocker arm. The transmission shaft is transmission-connected to the two eccentric shafts respectively arranged on the right wall panel and the left wall panel. The reduction motor is arranged on the left wall panel and drives the eccentric shaft to rotate. The present invention also discloses a raising mechanism working method for a reed-type air-jet loom, which uses the above-mentioned raising mechanism for a reed-type air-jet loom. The raising mechanism for a reed-type air-jet loom and its working method of the present invention adopt two sets of raising mechanism main bodies for a reed-type air-jet loom arranged side by side, and adopt an eccentric shaft to install the double rocker arm in the beating transmission, thereby changing the beating amplitude of the reed, which is convenient for raising.

Description

Technical Field

[0001] The invention relates to the technical field of a raising mechanism for a reed-type air-jet loom, in particular to a raising mechanism for a reed-type air-jet loom and a working method thereof. 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 use the ejected compressed air flow to generate friction traction on the weft yarn to pull it, bring the weft yarn through the shed, and achieve the purpose of weft insertion through the jet generated by the air jet. This weft insertion method enables the loom to achieve high speed and high production, and improves the weaving efficiency. Existing air jet looms often set up a beating transmission chamber in the left and right wall panels. The power of a circular motion of the crankshaft is input into the beating transmission chamber. After the transmission of each connecting rod, it can finally drive the swing of the steel reed to realize the weaving of the fabric. This is the beating motion process of an ordinary six-link loom. In order to realize the raising operation of towel fabrics, the steel reed is required to make a short beating action in the reed-driven raising method, and the wool warp is raised. However, the existing conventional raising mechanism often adopts a cam connecting rod method, which has a complex structure, high transmission accuracy requirements, and a high failure rate.

[0003] Therefore, it is necessary to develop a kind of raising mechanism and working method thereof for reed-driven air-jet loom for above-mentioned defective. Summary of the invention

[0004] The purpose of the present invention is to provide a raising mechanism for a reed-driven air jet loom and a working method thereof, wherein an eccentric shaft is used to install a double rocker arm in a weft beating transmission, thereby changing the weft beating amplitude of the reed to facilitate raising.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention discloses a raising mechanism for a reed-type air-jet loom, comprising an eccentric shaft, a transmission shaft and a reduction motor. The eccentric shaft is horizontally mounted on the inner wall of a beating transmission chamber and a chamber cover through bearings at both ends. The middle eccentric shaft section of the eccentric shaft can be rotatably inserted into the mounting middle hole of a double rocker arm. The transmission shaft is transmission-connected to two eccentric shafts respectively arranged on a right wall panel and a left wall panel. The reduction motor is arranged on the left wall panel and drives the eccentric shaft to rotate.

[0007] Furthermore, the diameter of the eccentric shaft section of the eccentric shaft is larger than the bearing installation section, and the bearing installation section is located within the end surface range of the eccentric shaft section.

[0008] Furthermore, a copper sleeve is coaxially sleeved in the installation center hole of the double rocker arm, and the copper sleeve and the eccentric shaft section can be rotatably and slidingly matched.

[0009] Furthermore, a spiral oil groove is provided on the inner wall of the copper sleeve.

[0010] Furthermore, the reduction motor includes a reducer and a servo motor, and the servo motor is electrically connected to a controller in an electrical control box of the equipment.

[0011] A method for operating a raising mechanism for a reed-driven air jet loom is disclosed. The raising mechanism for a reed-driven air jet loom described in any one of the above items is used for weaving operations. The beating amplitude of the reed is changed by changing the installation center hole position of the double rocker arm.

[0012] Furthermore, the reduction motor drives the transmission shaft to rotate back and forth, and the rotation angle does not exceed 120 degrees.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] The present invention discloses a raising mechanism for a reed-type air jet loom, which can change the position of the installation center hole of the double rocker arm by driving the eccentric shaft to rotate at a set angle through a reduction motor, thereby changing the action amplitude in the beating transmission chain, and finally changing the beating amplitude of the reed, so as to facilitate raising. Compared with the traditional complex raising drive mechanism, the technical solution of the present invention has a simple structure, a delicate structure, is easy to implement, and has good operating stability.

[0015] In addition, by setting the eccentric shaft section to have a larger cross-sectional area, the structural strength of the eccentric shaft can be increased, and the operation is stable. By setting the copper sleeve, the wear resistance can be improved and the wear caused by high-speed reciprocating rotation can be reduced; by setting the spiral oil groove, it is convenient to store lubricating oil, form a continuous oil film on the sliding friction surface, thereby reducing friction resistance and improving wear. By adopting a servo motor, it is convenient to control the rotation angle and speed of the eccentric shaft, and then cooperate with the long-width weft beating action to achieve rapid response.

[0016] The method for working the raising mechanism of the reed-driven air jet loom of the present invention adopts a method of changing the position of the installation center hole of the double rocker arm to change the beating amplitude of the steel reed, so that the raising mechanism is further simplified and the action is more reliable. By controlling the eccentric shaft to rotate back and forth, the two extreme positions are used as the switching positions of long beating and short beating, which can achieve more accurate control accuracy and ensure uniform weaving. By changing the turning angle between the two extreme positions, the beating amplitude of the short beating can be controlled, and then corresponding adjustments can be made according to different fabric raising requirements. 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 three-dimensional structure of a beating device with a raising mechanism for a reed-type air-jet loom according to the present invention;

[0019] Figure 2It is a right side structural schematic diagram of a beating device with a raising mechanism for a reed-type air-jet loom according to the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA part;

[0021] Figure 4 The present invention is a schematic diagram of the structure of the right side of the beating device with the raising mechanism for the reed-driven air-jet loom after the chamber cover is removed.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. right wall panel; 2. left wall panel; 3. beating transmission chamber; 301. chamber cover; 4. input crankshaft; 5. double rocker arm; 6. beating shaft; 7. rocker; 8. eccentric shaft; 9. transmission shaft; 10. copper sleeve; 11. coupling; 12. reduction motor; 13. reed seat; 14. reed. DETAILED DESCRIPTION

[0023] The core of the present invention is to provide a raising mechanism for a reed-driven air-jet loom and a working method thereof, wherein an eccentric shaft is used to install a double rocker arm in the beating transmission, thereby changing the beating amplitude of the reed to facilitate raising.

[0024] 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.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] With reference to the accompanying drawings, Figure 1 It is a schematic diagram of the three-dimensional structure of a beating device with a raising mechanism for a reed-type air-jet loom according to the present invention; Figure 2 It is a right side structural schematic diagram of a beating device with a raising mechanism for a reed-type air-jet loom according to the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA part; Figure 4 The present invention is a schematic diagram of the structure of the right side of the beating device with the raising mechanism for the reed-driven air-jet loom after the chamber cover is removed.

[0027] The raising mechanism of the reed-driven air-jet loom of the present invention improves the traditional six-link beating transmission mechanism. Usually, the six-link beating transmission mechanism is arranged in a beating transmission chamber 3 and includes an input crankshaft 4, a double rocker arm 5, a rocker 7 and a beating shaft 6. The protruding end of the input crankshaft 4 is connected to a driving pulley, and the crankshaft portion of the input crankshaft 4 is connected to one end of the double rocker arm 5 through a connecting rod. The double rocker arm 5 rotates around the center hole, and the other end of the double rocker arm 5 is connected to the protruding end of the rocker 7 through a connecting rod. The root of the rocker 7 is fixedly connected to the end of the beating shaft 6. The beating shaft 6 drives the reed seat 13 to swing, and then the reed 14 performs a beating action.

[0028] In a specific embodiment, Figures 1 to 4 As shown, a raising mechanism for a reed-type air-jet loom comprises an eccentric shaft 8, a transmission shaft 9 and a reduction motor 12. The eccentric shaft 8 is horizontally mounted on the inner wall of the weft-beating transmission chamber 3 and the chamber cover 301 through bearings at both ends, and the middle eccentric shaft section of the eccentric shaft 8 can be rotatably inserted into the mounting hole of the double rocker arm 5, that is, the two are rotatably fitted. The transmission shaft 9 is transmission-connected to the two eccentric shafts 8 respectively arranged on the right wall panel 1 and the left wall panel 2, and the transmission shaft 9 is connected to the eccentric shaft 8 through a coupling 11. The reduction motor 12 is mounted on the left wall panel 2, and the output end of the reduction motor 12 is connected to one end of the eccentric shaft 8 through a coupling, and drives the eccentric shaft 8 to rotate.

[0029] By driving the eccentric shaft 8 to rotate the set angle through the reduction motor 12, the position of the installation center hole of the double rocker arm 5 can be changed, and then the action amplitude in the transmission chain of the beating-up can be changed, and finally the beating-up amplitude of the reed 14 can be changed to facilitate the raising of the weft. Compared with the traditional complex raising drive mechanism, the technical solution of the present invention has a simple structure, a delicate structure, is easy to implement, and has good operating stability.

[0030] In a specific embodiment of the present invention, Figure 3 As shown, the diameter of the eccentric shaft section of the eccentric shaft 8 is larger than the bearing installation section, and the bearing installation section is located within the end surface range of the eccentric shaft section.

[0031] By setting the eccentric shaft section to have a larger cross-sectional area, the structural strength of the eccentric shaft 8 can be increased, and the operation is stable.

[0032] In a specific embodiment of the present invention, Figure 3 As shown, a copper sleeve 10 is coaxially sleeved in the installation center hole of the double rocker arm 5. The copper sleeve 10 is made of tin bronze, and the center hole of the copper sleeve 10 is rotatably and slidingly matched with the eccentric shaft section.

[0033] Specifically, a spiral oil groove is provided on the inner wall of the copper sleeve 10. Lubricating oil is filled in the spiral oil groove.

[0034] The copper sleeve 10 is provided to improve wear resistance and reduce wear caused by high-speed reciprocating rotation; the spiral oil groove is provided to facilitate storage of lubricating oil, forming a continuous oil film on the sliding friction surface, thereby reducing friction resistance and improving wear conditions.

[0035] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, the reduction motor 12 includes a reducer and a servo motor, and the servo motor is electrically connected to a controller in an electric control box of the equipment.

[0036] By adopting the servo motor, it is convenient to control the rotation angle and speed of the eccentric shaft 8, and then cooperate with the long-width weft beating action to achieve rapid response.

[0037] The raising mechanism for the reed-driven jet loom of the present invention drives the eccentric shaft 8 to rotate to a set angle through the reduction motor 12, which can change the position of the installation center hole of the double rocker arm 5, and then change the action size in the transmission chain of the weft beating, and finally change the weft beating amplitude of the reed 14, which is convenient for raising. Compared with the traditional complex raising drive mechanism, the technical solution of the present invention has a simple structure, a delicate structure, is easy to implement, and has good operating stability. In addition, by setting the eccentric shaft section to have a larger cross-sectional area, the structural strength of the eccentric shaft 8 can be increased, and the operation is stable. By setting the copper sleeve 10, the wear resistance can be improved and the wear caused by high-speed reciprocating rotation can be reduced; by setting the spiral oil groove, it is convenient to store lubricating oil, form a continuous oil film on the sliding friction surface, and then reduce friction resistance and improve wear. By adopting a servo motor, it is convenient to control the rotation angle and speed of the eccentric shaft 8, and then cooperate with the long-width weft beating action to achieve rapid response.

[0038] The present invention also discloses a working method of a raising mechanism for a reed-driven air-jet loom, and the raising mechanism for a reed-driven air-jet loom described in any of the above embodiments is used to perform weaving operations, and the reed beating amplitude is changed by changing the installation center hole position of the double rocker arm.

[0039] Specifically, the reduction motor drives the transmission shaft to rotate back and forth, and the rotation angle of the eccentric shaft 8 does not exceed 120 degrees.

[0040] By changing the installation center hole position of the double rocker arm to change the reed beating amplitude, the raising mechanism is further simplified and the action is more reliable. By controlling the eccentric shaft 8 to rotate back and forth, the two extreme positions are used as the switching positions of long beating and short beating, which can achieve more accurate control accuracy and ensure uniform weaving. By changing the turning angle between the two extreme positions, the beating amplitude of the short beating can be controlled, and then corresponding adjustments can be made according to different fabric raising requirements.

[0041] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0042] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A raising mechanism for a reed-type air-jet loom, characterized in that: It comprises an eccentric shaft (8), a transmission shaft (9) and a reduction motor (12); the eccentric shaft (8) is horizontally mounted on the inner wall of a weft beating transmission chamber (3) and a chamber cover (301) via bearings at both ends; the middle eccentric shaft section of the eccentric shaft (8) is rotatably inserted into the mounting middle hole of the double rocker arm (5); the transmission shaft (9) is transmission-connected to the two eccentric shafts (8) respectively arranged on the right wall panel (1) and the left wall panel (2); the reduction motor (12) is arranged on the left wall panel (2) and drives the eccentric shaft (8) to rotate; The diameter of the eccentric shaft section of the eccentric shaft (8) is larger than the bearing installation section, and the bearing installation section is located within the end surface range of the eccentric shaft section.

2. The raising mechanism for a reed-type air-jet loom according to claim 1, characterized in that: A copper sleeve (10) is coaxially sleeved in the installation center hole of the double rocker arm (5), and the copper sleeve (10) and the eccentric shaft section are rotatably and slidably matched.

3. The raising mechanism for a reed-type air-jet loom according to claim 2, characterized in that: A spiral oil groove is provided on the inner wall of the copper sleeve (10).

4. The raising mechanism for a reed-type air-jet loom according to any one of claims 1 to 3, characterized in that: The reduction motor (12) comprises a reducer and a servo motor, and the servo motor is electrically connected to a controller in an electrical control box of the equipment.

5. A method for operating a raising mechanism for a reed-type air-jet loom, characterized in that: The reed-driven air-jet loom with a raising mechanism as described in any one of claims 1 to 4 is used for weaving operations, and the reed beating amplitude is changed by changing the installation center hole position of the double rocker arm.

6. The method for operating the raising mechanism for a reed-type air-jet loom according to claim 5, characterized in that: The reduction motor drives the transmission shaft to rotate back and forth, and the rotation angle does not exceed 120 degrees.

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