Three-warp-beam mechanism of air jet loom

Abstract

The invention discloses a three-warp-beam mechanism of an air jet loom, which comprises a mechanism bracket, a first warp beam, a second warp beam and a third warp beam, the tension sensing device comprises a rotating beam coaxially arranged with the third warp beam and a swing beam coaxially arranged with the rotating beam, the swing beam is fixedly connected with the rotating beam, the two ends of the rotating beam are rotationally arranged on the mechanism support, the tension sensing device further comprises a swing arm fixedly arranged at the end of the rotating beam and a swing rod rotationally arranged on the mechanism support, and the swing arm is fixedly connected with the swing beam. The end part of the swinging arm is connected with a spring, the other end of the spring is connected with the swinging rod, and the spring is provided with a tension sensor for sensing tension change; the electric control system comprises a tension controller in signal connection with the tension sensor, and the tension controller is in signal connection with a driving motor of the third warp beam so as to control the rotating speed and the torque of the driving motor according to feedback signals of the tension sensor. The yarn tension of the third warp beam can be monitored and controlled in real time, the fabric quality can be remarkably improved, and the fabric style is fuller.

Description

Technical Field

[0001] The present application relates to the technical field of air jet looms, and in particular to a three-warp beam mechanism for air jet looms. Background Art

[0002] Existing air jet looms usually use a double warp beam feeding system when weaving complex structures with different warp tensions. When three or more yarns with different tensions are required, more warp beams are needed. The existing third warp beam devices on the market usually lack tension electrical control and other problems, resulting in a less full fabric style.

[0003] Therefore, in view of the above technical problems, how to achieve tension control of the third warp beam is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0004] The purpose of this application is to provide a three-warp beam mechanism for an air jet loom, which can monitor and control the yarn tension of the third warp beam in real time, and can significantly improve the quality of the fabric and make the fabric style fuller.

[0005] To achieve the above-mentioned purpose, the present application provides a three-warp beam mechanism for an air jet loom, comprising:

[0006] A mechanism support, on which a third warp beam is rotatably provided;

[0007] A tension sensing device, comprising a rotating beam coaxially arranged with the third warp beam and a swinging beam coaxially arranged with the rotating beam, wherein the swinging beam is fixedly connected with the rotating beam, and both ends of the rotating beam are rotatably arranged on the mechanism bracket, and further comprising a swinging arm fixedly arranged at the end of the rotating beam and a swinging rod rotatably arranged on the mechanism bracket, wherein a spring is connected to the end of the swinging arm, and the other end of the spring is connected to the swinging rod, and a tension sensor for sensing a change in its tension is provided on the spring;

[0008] An electric control system, comprising a tension controller connected to the tension sensor signal, wherein the tension controller is connected to the drive motor signal of the third warp beam to control the speed and torque of the drive motor according to the feedback signal of the tension sensor;

[0009] The unwound yarn on the third warp beam contacts the outer walls of the rotating beam and the swinging beam in sequence, and the tension of the yarn acts on the swinging beam.

[0010] Preferably, the swing lever is rotatably connected to the mechanism bracket via a pin, and the swing axis of the swing lever is arranged in the same direction as the swing axis of the swing arm.

[0011] Preferably, one end of the swing arm away from the rotating beam is rotatably connected to a connecting block, the rotating shafts of the swing arm and the connecting block are arranged parallel to the axis of the rotating beam, and one end of the spring is fixedly connected to the connecting block.

[0012] Preferably, the sensing end of the tension sensor is arranged on the spring, the fixed end of the tension sensor is arranged on the swing rod, and the end of the swing rod extends toward the connecting block from the inner side of the spring and is spaced apart from the connecting block.

[0013] Preferably, an upper warp beam and a lower warp beam are rotatably provided on the mechanism bracket, the upper warp beam is located above the lower warp beam, the third warp beam is located behind the lower warp beam, the three warp beams are coaxially arranged, the number of the tension sensing devices is three, and the three tension sensing devices correspond to the three warp beams respectively to monitor and control the yarn tension on the corresponding warp beams.

[0014] Preferably, an extended bracket corresponding to the position of the upper warp beam is provided on the mechanism bracket, the extended bracket is distributed on both sides of the mechanism bracket and is detachably arranged with the mechanism bracket, and a hook is provided on the extended bracket, and the size of the hook-shaped portion of the hook is adapted to the outer diameter of the third warp beam.

[0015] Preferably, the extended bracket is provided with a guide groove, and the two ends of the upper warp beam slide in the guide groove and slide into the warp beam guide groove of the mechanism bracket.

[0016] Preferably, the driving motor for driving the third warp beam and the driving motor for driving the lower warp beam are respectively arranged on both sides of the mechanism bracket.

[0017] Preferably, the yarn on the third warp beam is unwound from the front of the third warp beam.

[0018] Preferably, the shaft tube of the third warp beam is provided with long threads on both sides.

[0019] Compared with the above-mentioned background technology, the present application sets a tension sensing device on the mechanism bracket, which is arranged on the mechanism bracket through a rotating beam, so that the swinging beam can swing with the rotating axis of the rotating beam as the axis. The tension of the yarn can act on the swinging beam, thereby driving the swinging beam to swing under the action of tension, thereby driving the rotating beam to rotate a corresponding amplitude, and the rotation amplitude acts on the spring through the swing arm. The compression or rope pulling amplitude of the spring can act on the sensing end of the tension sensor, so that the tension sensor can monitor the tension changes of the corresponding yarn in real time; the tension controller in the electronic control system adjusts the speed and torque of the drive motor corresponding to the third warp beam according to the signal fed back by the tension sensor, so as to achieve the purpose of accurately controlling the yarn tension and improve the quality of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of the three-warp beam mechanism of the air jet loom provided in the embodiment of the present application;

[0022] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 3 A schematic diagram of the side structure of the tension sensing device provided in an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the side structure of the three-warp beam mechanism of the air jet loom provided in an embodiment of the present application.

[0025] In the figure: 1-mechanism bracket; 2-upper warp beam; 3-lower warp beam; 4-third warp beam; 5-rotating beam; 6-swinging beam; 7-extension bracket; 8-hook; 9-swinging arm; 10-connecting block; 11-spring; 12-tension sensor; 13-swinging rod; 14-pin shaft; 15-driving motor; 16-rear beam bracket; 17-wall panel; 18-support seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1 As shown, in this embodiment, a three-warp beam mechanism of an air jet loom is provided, which includes a mechanism bracket 1, a tension sensing device and an electronic control system. The mechanism bracket 1 serves as a main bearing component, and the third warp beam 4 can be rotatably set on the mechanism bracket 1, and the tension sensing device can also be set on the mechanism bracket 1; and the mechanism bracket 1 is distributed on both sides of the warp beam, and both ends of the warp beam can be rotatably connected to the mechanism bracket 1 through bearings and other components, and a driving motor 15 and other components can also be set on the mechanism bracket 1.

[0030] Among them, the mechanism bracket 1 is a fixed bracket distributed on both sides of the warp beam, providing a stable connection point for the warp beam and the supporting tension sensing device, for example, please refer to Figure 1 , the third warp beam 4 can be arranged at the wall panel 17 of the mechanism bracket 1, the upper warp beam 2 and the lower warp beam 3 are arranged at the upper wall panel and the lower wall panel of the mechanism bracket 1 respectively, the rotating beam 5 can be arranged at the rear beam bracket 16 or the rear beam support of the mechanism bracket 1, and the swing rod 13 can be arranged at the support seat 18 of the mechanism bracket 1. The wall panel 17, the rear beam bracket 16, the rear beam support and the support seat 18 are all part of the mechanism bracket 1, which play the role of providing a stable connection point. For other forms of mechanism brackets 1, but the embodiments with the same functions as the mechanism bracket 1 of the present application are not described in detail here one by one, and all fall within the protection scope of the present application.

[0031] The tension sensing device includes a rotating beam 5 and a swinging beam 6, please refer to Figure 1 The two ends of the rotating beam 5 can be rotatably arranged on the mechanism bracket 1 through bearings and other components, and the rotating beam 5 is also coaxially arranged with the third warp beam 4 to ensure the stability of the yarn when it contacts the rotating beam 5. Similarly, the swing beam 6 is coaxially arranged with the rotating beam 5, and the unwound yarn on the third warp beam 4 can contact the outer wall of the rotating beam 5 and the swing beam 6 in turn. At the same time, the rotating beam 5 also plays a role in changing the direction of the yarn, so that the tension of the yarn can act on the swing beam 6 smoothly.

[0032] On the basis of the above embodiment, the swing beam 6 can be fixedly connected to the rotating beam 5, and the two can be fixedly connected by the middle connecting piece and the bolt, and no excessive restrictions are made here; under the action of the yarn tension, the swing beam 6 will swing with the axis of the rotating beam 5 as the swing axis, thereby driving the rotating beam 5 to rotate, that is, converting the yarn tension into the rotation amplitude of the rotating beam 5. The tension sensing device also includes a swing arm 9 fixedly arranged at the end of the swing beam 6 and a swing rod 13 rotatably arranged on the mechanism bracket 1, please refer to Figure 2After the rotating beam 5 rotates, it will drive the swing arm 9 to swing, and the end of the swing arm 9 is connected to a spring 11, and the other end of the spring 11 is connected to the swing rod 13, which will cause the spring 11 to stretch or compress. By arranging a tension sensor 12 on the spring 11, the tension change caused by the change of the spring 11 can be obtained, and then the tension change of the yarn can be obtained.

[0033] It should be pointed out that when the tension of the yarn is zero, the spring 11 should be in the initial state, that is, the spring 11 is not compressed or stretched at this time. Only when the yarn has tension will it drive the swing beam 6 to swing, thereby causing the spring 11 to stretch or compress.

[0034] The electronic control system includes a tension controller connected to the signal of the tension sensor 12, and the tension controller is connected to the signal of the drive motor 15 of the third warp beam 4, so that the tension controller controls the speed and torque of the drive motor 15 according to the feedback signal of the tension sensor 12; for example, when the yarn tension is too large, it will cause the swing beam 6 to swing with a larger amplitude, and the rotating beam 5 will also rotate with a larger amplitude, then the corresponding swing arm 9 will compress or stretch the spring 11 to a larger extent, so that the tension sensor 12 obtains a larger tension feedback; at this time, if the tension monitored by the tension sensor 12 exceeds the preset value, it means that the yarn tension is too large, and the speed of the drive motor 15 can be increased by the tension controller, so as to increase the speed of the unwinding yarn of the third warp beam 4, thereby reducing the tension of the yarn; otherwise, the speed of the drive motor 15 is reduced.

[0035] In summary of the above embodiments, the present application sets a tension sensing device on the mechanism bracket 1, which is rotatably set on the mechanism bracket 1 by the rotating beam 5, so that the swing beam 6 can swing with the rotating axis of the rotating beam 5 as the axis, and the tension of the yarn can act on the swing beam 6, thereby driving the swing beam 6 to swing under the action of tension, thereby driving the rotating beam 5 to rotate a corresponding amplitude, and the rotation amplitude acts on the spring 11 through the swing arm 9, and the compression or rope pulling amplitude of the spring 11 can act on the sensing end of the tension sensor 12, so that the tension sensor 12 monitors the tension changes of the corresponding yarn in real time; the tension controller in the electronic control system adjusts the speed and torque of the drive motor 15 corresponding to the third warp beam 4 according to the signal fed back by the tension sensor 12, so as to achieve the purpose of accurately controlling the yarn tension and improve the quality of the fabric.

[0036] Please refer to Figure 2 The swing rod 13 can be rotatably connected to the mechanism bracket 1 through a pin shaft 14, and the pin shaft 14 is located outside the mechanism bracket 1. The swing axis of the swing rod 13 is set in the same direction as the swing axis of the swing arm 9, so that when the swing arm 9 swings, the swing rod 13 can provide a certain radial offset for the spring 11 through its own swinging action, thereby ensuring that the compression or extension of the spring 11 is more stable and the force is more balanced.

[0037] Further, a connecting block 10 is rotatably connected to one end of the swing arm 9 away from the rotating beam 5, see Figure 2 and Figure 3 One end of the spring 11 is fixedly connected to the connecting block 10, and the rotating shafts of the swing arm 9 and the connecting block 10 are arranged parallel to the axis of the rotating beam 5, so that according to the swing amplitude of the swing arm 9, the connecting block 10 rotates adaptively, making the force on the spring 11 more stable.

[0038] Please refer to Figure 4 In order to obtain more accurate tension, the sensing end of the tension sensor 12 can be set on the spring 11. When the spring 11 is compressed or stretched, the sensing end of the tension sensor 12 can obtain accurate tension according to the deformation of the spring 11. The fixed end of the tension sensor 12 is set on the swing rod 13 and can move synchronously with the swing rod 13, thereby ensuring that the tension sensor 12 and the spring 11 are kept in the same position, avoiding the problem of inaccurate tension monitoring due to position error.

[0039] Also, please refer to Figure 4 The end of the swing rod 13 extends toward the connecting block 10 on the inner side of the spring 11 and is spaced apart from the connecting block 10. The spacing can limit the maximum amplitude of the swing arm 9, prevent the tension sensor 12 from being unable to measure the tension due to excessive tension of the outgoing line, and prevent the spring 11 from being over-compressed, affecting the expansion and contraction effect of the spring 11.

[0040] It should be noted that the upper warp beam 2 and the lower warp beam 3 are also rotatably provided on the support 1 of the mechanism. Figure 1 , the upper warp beam 2 is located above the lower warp beam 3, and the third warp beam 4 is located behind the lower warp beam 3. The three warp beams (upper warp beam 2, lower warp beam 3 and third warp beam 4) are coaxially arranged to meet the weaving requirements of complex fabrics. The number of tension sensing devices can be set to three, and the three tension sensing devices correspond to the three warp beams respectively, so as to monitor and control the yarn tension on the corresponding warp beams; as for the tension sensing devices corresponding to the upper warp beam 2 and the lower warp beam 3, their setting method will not be described in detail here, and the tension sensing device corresponding to the third warp beam 4 can be referred to, and the tension sensing device can be used in conjunction with the electronic control system to realize the monitoring and control of the yarn tension on each warp beam.

[0041] Please refer to Figure 1An extended bracket 7 corresponding to the position of the upper warp beam 2 is provided on the mechanism bracket 1. Due to the addition of the third warp beam 4, the position of the upper warp beam 2 is relatively forward. When the staff assembles the upper warp beam 2 on the mechanism bracket 1, the existence of the third warp beam 4 makes it impossible for the transport vehicle to directly transport the upper warp beam 2 to the position. Therefore, a guide groove can be set on the extended bracket 7. It is only necessary to transport the upper warp beam 2 to the guide groove of the extended bracket 7. The upper warp beam 2 enters the warp beam guide groove of the mechanism bracket 1 through the guide groove by sliding, which is easy to install in place.

[0042] At the same time, the extension bracket 7 is detachably connected to the mechanism bracket 1. After the upper warp beam 2 is assembled in place, the extension bracket 7 can be removed to prevent the extension bracket 7 from extending too long and accidentally bumping against the staff.

[0043] On the basis of the above embodiment, the extended bracket 7 can be distributed on both sides of the mechanism bracket 1, and a hook 8 can be set on the extended bracket 7. Figure 1 The size of the hook portion of the hook 8 is adapted to the outer diameter of the third warp beam 4; when the lower warp beam 3 needs to be tied, the third warp beam 4 can be temporarily removed from the mechanism bracket 1 and placed on the two hooks 8, so as to quickly complete the warp tying work of the lower warp beam 3.

[0044] In addition, each warp beam corresponds to a drive motor 15. In order to avoid interference between the drive motor 15 or gear of the lower warp beam 3 and the drive motor 15 or gear of the third warp beam 4, thereby affecting normal operation, the two drive motors 15 can be respectively arranged on both sides of the mechanism bracket 1 to ensure that the mechanism can operate normally.

[0045] Please refer to Figure 4 The yarn on the third warp beam 4 can be unwound from the front of the third warp beam 4, and then contact the rotating beam 5 at the rear side of the rotating beam 5, and contact the swing beam 6 at the rear side of the swing beam 6. The staff can reach the top of the third warp beam 4 from the rear side of the third warp beam 4, so that the third warp beam 4 can be temporarily used as a pedal, so that the operator can perform the vehicle blocking operation, and the third warp beam 4 can also be used as a support for temporary rest when the third warp beam 4 stops working.

[0046] In addition, the third warp beam 4 can also be used as a spare shaft tube for the upper warp beam 2. The shaft tube of the third warp beam 4 can be provided with long threads on both sides, and both sides of the shaft tube can be matched with shaft disks, and can also serve as the shaft tube of the upper warp beam 2, thereby reducing the need for additional components and improving the flexibility and utilization of the equipment. At the same time, the shaft disk of the third warp beam 4 can use a shaft disk with a smaller diameter, reducing the floor space and operating distance of the loom in the workshop, and improving the space utilization of the workshop.

[0047] When operating the mechanism, firstly, the yarn tension of the upper warp beam 2, the lower warp beam 3 and the rear warp beam is monitored in real time according to the tension sensing device; according to the weaving requirements, the tension setting value of the tension sensing device is adjusted through the electronic control system; during the weaving process, the tension setting value of the electronic control system, in conjunction with the feedback signal of the tension sensing device, automatically adjusts the yarn tension to ensure the fabric quality. When the lower warp beam 3 is tying the warp, the rear warp beam is temporarily placed on the hook 8 of the extended bracket 7, and restored to its original position after the warp tying is completed; the power output of the three warp beams is controlled by the electronic control system to ensure the normal unwinding of the warp yarn.

[0048] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0049] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A three-warp beam mechanism for an air jet loom, characterized in that: include: A mechanism support (1), wherein a third warp beam (4) is rotatably provided on the mechanism support (1); A tension sensing device, comprising a rotating beam (5) coaxially arranged with the third warp beam (4) and a swinging beam (6) coaxially arranged with the rotating beam (5), wherein the swinging beam (6) is fixedly connected to the rotating beam (5), and both ends of the rotating beam (5) are rotatably arranged on the mechanism bracket (1), and further comprising a swinging arm (9) fixedly arranged at the end of the rotating beam (5) and a swinging rod (13) rotatably arranged on the mechanism bracket (1), wherein the end of the swinging arm (9) is connected to a spring (11), and the other end of the spring (11) is connected to the swinging rod (13), and the spring (11) is provided with a tension sensor (12) for sensing a change in its tension; An electric control system, comprising a tension controller connected to the tension sensor (12) signal, the tension controller being connected to the drive motor (15) of the third warp beam (4) signal so as to control the rotation speed and torque of the drive motor (15) according to the feedback signal of the tension sensor (12); The unwound yarn on the third warp beam (4) contacts the outer walls of the rotating beam (5) and the swinging beam (6) in sequence, and the tension of the yarn acts on the swinging beam (6).

2. The three-warp beam mechanism of the air jet loom according to claim 1, characterized in that: The swing rod (13) is rotatably connected to the mechanism bracket (1) via a pin shaft (14), and a swing axis of the swing rod (13) and a swing axis of the swing arm (9) are arranged in the same direction.

3. The three-warp beam mechanism of the air jet loom according to claim 1, characterized in that: One end of the swing arm (9) facing away from the rotating beam (5) is rotatably connected to a connecting block (10); the rotating shafts of the swing arm (9) and the connecting block (10) are arranged parallel to the axis of the rotating beam (5); and one end of the spring (11) is fixedly connected to the connecting block (10).

4. The three-warp beam mechanism of the air jet loom according to claim 3, characterized in that: The sensing end of the tension sensor (12) is arranged on the spring (11), the fixed end of the tension sensor (12) is arranged on the swing rod (13), and the end of the swing rod (13) extends from the inner side of the spring (11) toward the connecting block (10) and is arranged at a distance from the connecting block (10).

5. The three-warp beam mechanism of the air jet loom according to any one of claims 1 to 4, characterized in that: An upper warp beam (2) and a lower warp beam (3) are rotatably mounted on the mechanism bracket (1); the upper warp beam (2) is located above the lower warp beam (3); the third warp beam (4) is located behind the lower warp beam (3); the upper warp beam (2), the lower warp beam (3) and the third warp beam (4) are coaxially arranged; the number of the tension sensing devices is three, and the three tension sensing devices are respectively arranged corresponding to the three to monitor the yarn tension on the three.

6. The three-warp beam mechanism of the air jet loom according to claim 5, characterized in that: The mechanism support (1) is provided with an extended support (7) corresponding to the position of the upper warp beam (2); the extended support (7) is distributed on both sides of the mechanism support (1) and is detachably arranged with the mechanism support (1); a hook (8) is provided on the extended support (7); the size of the hook-shaped portion of the hook (8) is adapted to the outer diameter of the third warp beam (4).

7. The three-warp beam mechanism of the air jet loom according to claim 6, characterized in that: The extended bracket (7) is provided with a guide groove, and the two ends of the upper warp beam (2) slide in the guide groove and slide into the warp beam guide groove of the mechanism bracket (1).

8. The three-warp beam mechanism of the air jet loom according to claim 5, characterized in that: The driving motor (15) for driving the third warp beam (4) and the driving motor (15) for driving the lower warp beam (3) are respectively arranged on both sides of the mechanism bracket (1).

9. The three-warp beam mechanism of the air jet loom according to claim 5, characterized in that: The yarn on the third warp beam (4) is unwound from the front of the third warp beam (4).

10. The three-warp beam mechanism of the air jet loom according to claim 5, characterized in that: The shaft tube of the third warp beam (4) is provided with long threads on both sides.

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