Anti-flying shuttle positioning mechanism of a projectile loom

Abstract

The utility model belongs to the technical field of sheet shuttle loom, especially a kind of anti-flying shuttle positioning mechanism of sheet shuttle loom, including sheet shuttle loom reed seat, the front of sheet shuttle loom reed seat is separately provided with controller and sliding groove frame, the top of sliding groove frame is provided with two infrared pair of instruments, the inner bottom wall of sheet shuttle loom reed seat is equipped with installation groove, the inside of installation groove is provided with electromagnet, the inside sliding connection of sliding groove frame has positioning frame, the left side surface and the right side surface of sliding groove frame are provided with electric push rod, and the extension end of each electric push rod is fixedly connected with connecting plate, by setting infrared pair of instruments, can realize real-time monitoring to sheet shuttle, when sheet shuttle touches infrared, deviates normal path, infrared pair of instruments will rapidly signal transmission to controller, after controller receives signal, electric push rod is started immediately, and electric push rod is driven positioning frame to slide in sliding groove frame by connecting plate, and sheet shuttle is formed to block and limit, to avoid its accidental fly out.

Description

Technical Field

[0001] This utility model belongs to the technical field of rapier looms, specifically relating to an anti-shuttle positioning mechanism for rapier looms. Background Technology

[0002] A rapier loom is a shuttleless loom that uses a rapier shuttle as the weft insertion tool. It is an important type of modern weaving equipment and is widely used in the weaving production of various fibers such as cotton, wool, silk, linen, and chemical fibers. Its core feature is the use of a rapier shuttle, a flat, sheet-like weft insertion device, usually made of lightweight, high-strength materials such as alloys. It replaces the shuttle in traditional shuttle looms to complete the weft insertion action. During operation, the rapier shuttle flies at high speed on the loom's shuttle track, guiding the weft yarn into the channel formed by the warp yarn opening. After completing one weft insertion, the rapier shuttle is brought back to its original position by the loom's take-back mechanism, and the weft insertion process is repeated.

[0003] However, during the operation of a rapier loom, the rapier shuttle needs to shuttle at high speed in the channel formed by the warp yarn opening to complete the weft insertion operation. However, if the rapier shuttle deviates from the normal operating path due to factors such as track wear, loose parts, or operational errors, it may accidentally fly out of the loom. Since the rapier shuttle itself has a certain mass and flies at extremely high speed, once a shuttle flies out, it will not only damage other parts of the loom, but also pose a serious threat to the personal safety of the operator, and may cause safety accidents such as impact and scratches.

[0004] To address the aforementioned problems, this application proposes an anti-shuttle positioning mechanism for a rapier loom. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides an anti-flying shuttle positioning mechanism for a rapier loom, which has the feature of preventing the rapier shuttle from accidentally flying out.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-flying shuttle positioning mechanism for a rapier loom, comprising a rapier loom reed base, a controller and a sliding groove frame respectively provided on the front side of the rapier loom reed base, two infrared beam detectors provided above the sliding groove frame, an installation groove provided on the inner bottom wall of the rapier loom reed base, an electromagnet provided inside the installation groove, a positioning frame slidably connected inside the sliding groove frame, an electric push rod provided on the left and right sides of the sliding groove frame, a connecting plate fixedly connected to the telescopic end of each electric push rod, the sides of the two connecting plates close to each other being fixedly connected to the left and right sides of the positioning frame respectively, and the front and back sides of each connecting plate contacting the inner wall of the sliding groove frame.

[0007] As a preferred embodiment of this utility model, a fixing frame is fixedly connected to the outer surface of the electromagnet, and the outer surface of the fixing frame is fixedly connected to the inner wall of the mounting groove.

[0008] As a preferred technical solution of this utility model, each of the infrared beam transmitters has a fixed base fixedly connected to its outer surface, and the back of each fixed base is fixedly connected to the front of the reed seat of the shuttle loom.

[0009] As a preferred embodiment of this utility model, a mounting plate is fixedly connected to the back of the controller, and the back of the mounting plate is fixedly connected to the front of the reed seat of the rapier loom.

[0010] As a preferred embodiment of this utility model, the left and right sides of the sliding groove frame are fixedly connected with fixing blocks, and the back of each fixing block is fixedly connected to the front of the reed seat of the shuttle loom.

[0011] As a preferred embodiment of this utility model, a connecting frame is fixedly connected to the top of each electric push rod, and the back of each connecting frame is fixedly connected to the front of the reed seat of the rapier loom.

[0012] As a preferred embodiment of this utility model, two limiting plates are fixedly connected to the front and back of the positioning frame, and the outer surface of each limiting plate is slidably connected to the inner wall of the sliding groove frame.

[0013] As a preferred embodiment of this utility model, a protective pad is fixedly connected to the back of the positioning frame, and the protective pad is made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting an infrared beam detector, the shuttle can be monitored in real time. When the shuttle touches the infrared beam or deviates from the normal path, the infrared beam detector will quickly transmit the signal to the controller. After receiving the signal, the controller will immediately control the electric push rod to start. The electric push rod drives the positioning frame to slide in the sliding groove frame through the connecting plate, forming a block and limit on the shuttle, thereby preventing it from flying out accidentally and effectively realizing the positioning function of preventing shuttle from flying out. At the same time, when the shuttle deviates, the electromagnet will generate a magnetic force to form an attraction force, further assisting the positioning frame to enhance the restraint effect on the shuttle. With the cooperation of various components, this anti-shuttle positioning mechanism can effectively prevent the shuttle from flying out accidentally, ensuring the normal operation of the loom and the personal safety of the operator, and has high practicality and safety. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the reed holder of the shuttle loom of this utility model;

[0018] Figure 3 This is a cross-sectional view of the sliding groove frame in this utility model;

[0019] Figure 4 This is a cross-sectional view of the positioning frame in this utility model;

[0020] Figure 5 This is a rear view schematic diagram of the protective pad in this utility model;

[0021] In the diagram: 1. Reed holder for a rapier loom; 2. Sliding groove frame; 3. Positioning frame; 4. Fixing frame; 5. Electromagnet; 6. Mounting groove; 7. Infrared beam detector; 8. Fixing base; 9. Mounting plate; 10. Controller; 11. Connecting plate; 12. Electric push rod; 13. Fixing block; 14. Connecting frame; 15. Limiting plate; 16. Protective pad. Detailed Implementation

[0022] 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.

[0023] Example

[0024] Please see Figure 1-5 The present invention provides the following technical solution: a shuttle anti-flying positioning mechanism for a rapier loom, comprising a rapier loom reed seat 1, a controller 10 and a sliding groove frame 2 respectively provided on the front of the rapier loom reed seat 1, two infrared beam detectors 7 provided above the sliding groove frame 2, an installation groove 6 provided on the inner bottom wall of the rapier loom reed seat 1, an electromagnet 5 provided inside the installation groove 6, a positioning frame 3 slidably connected inside the sliding groove frame 2, an electric push rod 12 provided on the left and right sides of the sliding groove frame 2, a connecting plate 11 fixedly connected to the telescopic end of each electric push rod 12, the sides of the two connecting plates 11 that are close to each other being fixedly connected to the left and right sides of the positioning frame 3 respectively, and the front and back sides of each connecting plate 11 being in contact with the inner wall of the sliding groove frame 2;

[0025] In this embodiment, the reed stand 1 of the rapier loom is based on a rigid frame as its main structure. Its core functional components include a steel reed, reed stand feet, and a shuttle guide component. The steel reed plays a key role in weft insertion and determining the warp density. The reed stand feet drive the overall swing to achieve the weft insertion action. The shuttle guide component ensures the trajectory accuracy of the rapier shuttle during high-speed movement. It is also supplemented by a buffer device and mounting structure. Through the coordinated cooperation of each component, the functions of weft insertion, shuttle guidance, and adaptation to the overall operation of the loom are realized. In addition, in the configuration of the infrared beam detector 7, the interference of the weaving thread is avoided by targeted design, so that it can focus on detecting the rapier shuttle. Specifically, the angle and height of the infrared beam can be optimized to accurately cover the movement trajectory range of the rapier shuttle while avoiding the distribution area of ​​the weaving thread. Alternatively, a specific wavelength of infrared signal can be used, combined with filtering technology, to filter out the reflection interference that the weaving thread may generate. This ensures that the infrared beam detector 7 only responds to the obstruction signal of the rapier shuttle, thereby improving the specificity and accuracy of the rapier shuttle monitoring.

[0026] Specifically, a fixing frame 4 is fixedly connected to the outer surface of the electromagnet 5. The outer surface of the fixing frame 4 is fixedly connected to the inner wall of the mounting groove 6. In this embodiment, the electromagnet 5 is stably embedded in the mounting groove 6 through the fixing frame 4. At the same time, the electromagnet 5 is an electromagnetic device that works by the principle of electromagnetic induction and is composed of an iron core, a coil and an armature.

[0027] Specifically, each infrared beam transmitter 7 has a fixed base 8 fixedly connected to its outer surface, and the back of each fixed base 8 is fixedly connected to the front of the reed seat 1 of the shuttle loom. In this embodiment, the fixed base 8 provides rigid support for the infrared beam transmitter 7. Meanwhile, the infrared beam transmitter 7 is a security or detection device based on the principle of infrared emission and reception, mainly composed of an infrared transmitter and an infrared receiver.

[0028] Specifically, a mounting plate 9 is fixedly connected to the back of the controller 10. The back of the mounting plate 9 is fixedly connected to the front of the reed seat 1 of the shuttle loom. In this embodiment, the mounting plate 9 increases the contact area between the controller 10 and the reed seat 1 of the shuttle loom, thus dispersing the force at the connection point. At the same time, the controller 10 adopts a programmable logic controller (PLC), which is a digital computing and operating electronic system designed specifically for industrial environments. It uses a programmable memory to store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations, and controls various types of machinery or production processes through digital or analog inputs / outputs.

[0029] Specifically, the left and right sides of the sliding groove frame 2 are fixedly connected with fixing blocks 13. The back of each fixing block 13 is fixedly connected to the front of the reed seat 1 of the shuttle loom. In this embodiment, the sliding groove frame 2 and the reed seat 1 of the shuttle loom are rigidly connected by fixing blocks 13, which enhances the overall structural strength of the sliding groove frame 2, prevents it from deforming or displacing during the sliding of the positioning frame 3, and ensures that the positioning frame 3 can move stably along the preset trajectory and accurately complete the blocking action on the shuttle.

[0030] Specifically, each electric push rod 12 is fixedly connected to a connecting frame 14 at its top end. The back of each connecting frame 14 is fixedly connected to the front of the reed seat 1 of the shuttle loom. In this embodiment, the electric push rod 12 is firmly fixed to the reed seat 1 of the shuttle loom through the connecting frame 14, so that the electric push rod 12 can maintain a stable force state when it extends and retracts to drive the positioning frame 3, avoiding the electric push rod 12 from tilting or loosening due to the reaction force, and ensuring the accuracy and consistency of its output thrust.

[0031] Specifically, two limiting plates 15 are fixedly connected to the front and back of the positioning frame 3. The outer surface of each limiting plate 15 is slidably connected to the inner wall of the sliding groove frame 2. In this embodiment, the sliding cooperation between the limiting plate 15 and the inner wall of the sliding groove frame 2 forms a bidirectional constraint on the movement direction of the positioning frame 3, effectively preventing the positioning frame 3 from shifting left and right or swaying up and down during the sliding process, ensuring that it can accurately approach and block the shuttle along a straight line, and improving the reliability of positioning and interception.

[0032] Specifically, a protective pad 16 is fixedly connected to the back of the positioning frame 3. The protective pad 16 is made of rubber. In this embodiment, the rubber protective pad 16 forms an elastic buffer when the positioning frame 3 and the shuttle come into contact, which can reduce the impact force when the two collide and prevent the shuttle and the positioning frame from deforming or being damaged due to rigid impact.

[0033] The working principle and usage process of this utility model are as follows: First, the anti-shuttle positioning mechanism must be installed as a whole in the corresponding position of the rapier loom, ensuring a stable connection between the reed seat 1 and the main body of the loom. Simultaneously, check the installation status of each component. The fixing frame 4 stably embeds the electromagnet 5 into the mounting groove 6. The fixing base 8, mounting plate 9, fixing block 13, and connecting frame 14 respectively securely fix the infrared beam detector 7, controller 10, sliding groove frame 2, and electric push rod 12. The limiting plate 15 fits smoothly against the inner wall of the sliding groove frame 2, and the protective pad 16 is undamaged, ensuring that all components are in normal working positions. Next, connect the equipment power supply. The controller 10 starts up and enters standby mode, presets the infrared monitoring range corresponding to the normal operating trajectory of the rapier shuttle and the trigger threshold of the electric push rod 12. At this time, the transmitter and receiver of the infrared beam detector 7 form a stable infrared beam, covering the path that the rapier shuttle may deviate from. The electric push rod 12 is in the retracted state, the positioning frame 3 is in the initial position within the sliding groove frame 2, and does not affect the normal shuttle movement. The electromagnet 5 is not energized and no magnetic force is generated. When the rapier shuttle loom starts working and the rapier shuttle moves at high speed along the guide shuttle component, the infrared beam detector 7 monitors the position of the rapier shuttle in real time. If the rapier shuttle is operating normally and does not touch the infrared beam, all components maintain their initial state. The mechanism does not intervene in the loom's operation. Once the shuttle deviates abnormally from its normal path and touches the infrared beam, the infrared beam detector 7 immediately transmits a signal to the controller 10. Upon receiving the signal, the controller 10 instantly executes the preset program. On one hand, it controls the electromagnet 5 to be energized, generating magnetic force using the principle of electromagnetic induction to attract the approaching shuttle, initially restraining its deviation. On the other hand, it drives the electric push rods 12 on both sides to extend synchronously, driving the positioning frame 3 to slide along the sliding groove frame 2 through the connecting plate 11. During the sliding process, the limiting plate 15 slides and engages with the inner wall of the sliding groove frame 2, restricting the movement direction of the positioning frame 3 and ensuring that it approaches accurately along a straight line. When the positioning frame 3 contacts the shuttle, the rubber protective pad 16 first undergoes elastic deformation to buffer the impact force. Then, the main body of the positioning frame 3 forms a rigid block on the shuttle, which, together with the attraction force of the electromagnet, restricts the shuttle within a safe range to prevent it from flying out. After the fault is cleared, the controller 10 issues a reset command, the electric push rod 12 retracts, and the positioning frame 3 returns to its initial position. The electromagnet 5 is de-energized, the magnetic force disappears, and the equipment returns to standby mode, waiting for the next work cycle. The whole process is responsive and the components work together to effectively intercept the flying shuttle, protect the shuttle and the equipment, and ensure operational safety.

[0034] 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. A shuttle anti-flying positioning mechanism for a rapier loom, characterized in that: The device includes a reed stand (1) for a shuttle loom. A controller (10) and a sliding groove frame (2) are respectively provided on the front of the reed stand (1). Two infrared beam detectors (7) are provided above the sliding groove frame (2). An installation groove (6) is provided on the inner bottom wall of the reed stand (1). An electromagnet (5) is provided inside the installation groove (6). A positioning frame (3) is slidably connected inside the sliding groove frame (2). Electric push rods (12) are provided on the left and right sides of the sliding groove frame (2). A connecting plate (11) is fixedly connected to the telescopic end of each electric push rod (12). The sides of the two connecting plates (11) that are close to each other are fixedly connected to the left and right sides of the positioning frame (3). The front and back sides of each connecting plate (11) are in contact with the inner wall of the sliding groove frame (2).

2. The anti-shuttle positioning mechanism for a projectile loom according to claim 1, characterized in that: The outer surface of the electromagnet (5) is fixedly connected to a fixing frame (4), and the outer surface of the fixing frame (4) is fixedly connected to the inner wall of the mounting groove (6).

3. The anti-shuttle positioning mechanism for a projectile loom according to claim 1, characterized in that: Each infrared beam transmitter (7) has a fixed base (8) fixedly connected to its outer surface, and the back of each fixed base (8) is fixedly connected to the front of the reed seat (1) of the shuttle loom.

4. The anti-shuttle positioning mechanism for a projectile loom according to claim 1, characterized in that: The back of the controller (10) is fixedly connected to the mounting plate (9), and the back of the mounting plate (9) is fixedly connected to the front of the reed seat (1) of the shuttle loom.

5. The anti-shuttle positioning mechanism for a projectile loom according to claim 1, characterized in that: The left and right sides of the sliding groove frame (2) are fixedly connected to fixing blocks (13), and the back of each fixing block (13) is fixedly connected to the front of the reed seat (1) of the shuttle loom.

6. The anti-shuttle positioning mechanism for a rapier loom according to claim 1, characterized in that: Each of the electric push rods (12) has a connecting frame (14) fixedly connected to its top end, and the back of each connecting frame (14) is fixedly connected to the front of the reed seat (1) of the shuttle loom.

7. The anti-shuttle positioning mechanism for a projectile loom according to claim 1, characterized in that: The positioning frame (3) has two limiting plates (15) fixedly connected to its front and back sides, and the outer surface of each limiting plate (15) is slidably connected to the inner wall of the sliding groove frame (2).

8. The anti-shuttle positioning mechanism for a rapier loom according to claim 1, characterized in that: The back of the positioning frame (3) is fixedly connected to a protective pad (16), which is made of rubber.

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