A pile warp constant delivery mechanism

Abstract

The utility model discloses a kind of pile warp quantitative conveying mechanism, including rack, yarn feeding roller is rotatably connected on rack, one side rotatably connected with guide roller below yarn feeding roller on rack, wherein, one side of rack is equipped with the first drive mechanism of driving yarn feeding roller rotation, and the second drive mechanism of driving guide roller rotation, pressure detection mechanism is equipped on guide roller, adjusting roller is equipped below guide roller on rack, third drive mechanism for controlling the deflection of adjusting roller is equipped on rack. By setting encoder, the number of rotations of yarn feeding roller can be sensed, and the delivery of yarn is calculated accordingly.

Description

Technical Field

[0001] This utility model relates to the field of air-jet loom technology, specifically to a quantitative fabric warp conveying mechanism. Background Technology

[0002] In the weaving process of fabrics such as towels and velvet, the control of the feed of the pile warp yarn is crucial. The feed length of the pile warp yarn directly determines the height of the loops or the fullness of the pile layer on the fabric surface, affecting the quality and appearance of the product.

[0003] Traditional warp conveying mechanisms, while capable of feeding a fixed length of yarn, rely on replacing gears or changing pulleys for adjustment. This process is cumbersome and time-consuming, making it difficult to meet the demands of modern textile enterprises for small-batch, multi-variety, and high-precision production. Furthermore, current tension detection devices are generally separate from the guide rollers, not integrated. The tension detection device must be installed near the guide rollers; its position directly corresponds to the roller's location, preventing flexible installation in the optimal position along the yarn path as needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quantitative conveying mechanism for warp yarns. This mechanism enables quantitative and active conveying of warp yarns and integrates tension detection and yarn guide rollers, thereby improving installation flexibility.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A yarn feeding mechanism includes a frame consisting of two opposing wall panels. A yarn feeding roller is rotatably connected to the frame, and a yarn guide roller is rotatably connected to one side of the frame below the yarn feeding roller. A first drive mechanism for driving the yarn feeding roller to rotate and a second drive mechanism for driving the yarn guide roller to rotate are installed on one side of the frame. A pressure detection mechanism is provided on the yarn guide roller. An adjusting roller is provided on the frame below the yarn guide roller, and a third drive mechanism for controlling the deflection of the adjusting roller is provided on the frame. An installation groove is provided on the yarn guide roller along its length. The pressure detection mechanism includes a pressure sensor, a spring, a slide block, and an arc-shaped plate. A pressure sensor is installed on the side wall of the installation groove, and a spring is connected to one side of the pressure sensor. A slide block is slidably connected in the installation groove. The inner side of the slide block is connected to the spring, and the outer side of the slide block extends to the outside of the yarn guide roller, with the extended end connected to an arc-shaped plate concentric with the yarn guide roller.

[0007] Preferably, the first drive mechanism includes a first motor mounted on one side of the frame, a first gear connected to the motor shaft of the first motor, and a second gear connected to one end of the yarn feeding roller, wherein the first gear meshes with the second gear.

[0008] The above technical solution involves starting the first motor, which, through the cooperation of the first gear and the second gear, drives the yarn release roller to rotate, thereby releasing the yarn.

[0009] Preferably, an encoder is coaxially connected to the motor rotor via a grating disk inside the rear end cover of the first motor.

[0010] In the above technical solution, the encoder records the number of rotations of the first motor and uses this to plan the conveying length of the yarn, thereby achieving quantitative conveying.

[0011] Preferably, the second drive mechanism includes a second motor mounted on one side of the frame, and the motor shaft of the second motor is connected to one end of the yarn guide roller via a coupling.

[0012] In the above technical solution, the second motor operates, driving the yarn guide roller to rotate, thereby adjusting the angle of the pressure detection mechanism.

[0013] Preferably, the third drive mechanism includes shafts fixed to both ends of the adjusting roller, a swing arm fixedly connected to the shafts, a rotating shaft fixedly connected to one end of the swing arm, a swing arm fixedly connected to the rotating shaft, and an electric telescopic rod hinged to one side of the frame. The two rotating shafts are rotatably connected to both sides of the frame through bearings, and the telescopic end of the electric telescopic rod is pivotally connected to the lower end of the swing arm.

[0014] The above technical solution controls the operation of the electric telescopic rod, which drives the swing arm to swing. The swing arm drives the swing rod to swing through the rotating shaft, thereby driving the adjusting roller to swing, thus achieving the adjustment of yarn tension.

[0015] Preferably, a control box is installed on one side of the frame, and a controller is provided inside the control box. The signal input terminal of the controller is electrically connected to the pressure sensor and the encoder, and the signal output terminal of the controller is electrically connected to the first motor, the second motor and the electric telescopic rod.

[0016] The above technical solution uses a pressure sensor to detect the pressure during yarn delivery and transmits the signal to the controller. The controller then calculates and converts the pressure value into a tension value, which is transmitted to the electric telescopic rod. The electric telescopic rod adjusts the position of the adjusting roller to regulate the tension. An encoder senses the number of rotations of the unloading roller and transmits the signal to the controller. The controller calculates the length of the conveyed yarn, and when the desired delivery length is reached, the controller stops the second motor and stops the delivery.

[0017] Preferably, the mounting groove is provided with multiple sliding grooves, and the outer wall of the slide block is connected to a slider that cooperates with the sliding groove, and the slider is slidably connected in the corresponding sliding groove.

[0018] The above technical solution, through the cooperation of the slide and the slider, can improve the stability of the slide block's movement within the mounting groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) The pressure detection mechanism is integrated with the yarn guide roller. The yarn guide roller can guide the yarn, and the pressure detection mechanism can detect the pressure of the yarn on the yarn guide roller, thereby calculating the tightness during the conveying process. Moreover, the pressure detection mechanism can be installed in the most ideal position in the yarn path along with the yarn guide roller, improving the installation flexibility.

[0021] (2) By setting an encoder, the number of rotations of the yarn feeding roller can be sensed, and the amount of yarn fed can be calculated accordingly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a simplified schematic diagram of the principle of this utility model;

[0024] Figure 3 This is a schematic diagram of the yarn guide roller and the pressure detection structure;

[0025] In the diagram: 1-Frame, 2-Yarn feeding roller, 3-Yarn guide roller, 4-Adjusting roller, 5-Mounting groove, 6-Pressure sensor, 7-Spring, 8-Slide seat, 9-Arc plate, 10-First motor, 11-First gear, 12-Second gear, 13-Second motor, 14-Swing rod, 15-Rotating shaft, 16-Swing arm, 17-Electric telescopic rod, 18-Slide groove, 19-Slider, 20-Threading hole. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Please see Figure 1-3 A yarn feeding mechanism includes a frame 1 consisting of two opposing wall panels. A yarn feeding roller 2 is rotatably connected to the frame 1. A yarn guide roller 3 is rotatably connected to one side of the frame 1 below the yarn feeding roller. A first drive mechanism for driving the yarn feeding roller 2 to rotate and a second drive mechanism for driving the yarn guide roller 3 to rotate are installed on one side of the frame 1.

[0029] The first drive mechanism includes a first motor 10 mounted on one side of the frame 1, a first gear 11 connected to the motor shaft of the first motor, and a second gear 12 connected to one end of the yarn feeding roller. The first gear 11 and the second gear 12 mesh. By controlling the operation of the first motor 10, the yarn feeding roller 2 is driven to rotate through the cooperation of the first gear 11 and the second gear 12, thereby releasing the yarn.

[0030] Inside the rear end cover of the first motor 10, an encoder is coaxially connected to the motor rotor via a grating disk. The yarn feeding length after one revolution of the first motor 10 is pre-measured. Based on this, the yarn feeding length is planned, achieving quantitative feeding. During feeding, any minute angle of rotation of the motor shaft of the first motor 10 is immediately and flawlessly captured by the encoder. The encoder records the number of revolutions of the first motor 10, measuring the very initial rotation, eliminating intermediate transmission links, backlash, and slippage.

[0031] The second drive mechanism includes a second motor 13 mounted on one side of the frame. The motor shaft of the second motor 13 is connected to one end of the yarn guide roller 3 via a coupling. The operation of the second motor 13 drives the yarn guide roller 3 to rotate.

[0032] The yarn guide roller 3 has a mounting groove 5 along its length, and a pressure detection mechanism is installed within the mounting groove 5. The pressure detection mechanism includes a pressure sensor 6, a spring 7, a slide block 8, and an arc-shaped plate 9. The pressure sensor 6 is mounted on the side wall of the mounting groove 5, and the spring 7 is connected to one side of the pressure sensor 6. The slide block 8 is slidably connected within the mounting groove 5, with its inner side connected to the spring 7. The outer side of the slide block 8 extends to the outside of the yarn guide roller 3, and the extended end is connected to an arc-shaped plate 9 concentric with the yarn guide roller 3. A threading hole 9 is provided on the side of the yarn guide roller away from the mounting groove, through which the wires of the pressure sensor pass and are connected to the controller.

[0033] The pressure sensor 6 described in this embodiment is a pressure sensor. After the yarn is output from the unloading roller 2, it first passes through the guide roller, then around the adjusting roller 4. When passing through the guide roller 3, it will generate a downward pressure F on the guide roller 3. Under the action of pressure F, it will squeeze the arc plate 9, the arc plate 9 will squeeze the slide 8, the slide 8 will squeeze the spring 7, and apply pressure to the pressure sensor 6. The sensor converts the force or deformation it receives into an electrical signal output. The magnitude of this signal is proportional to the yarn tension, thereby indirectly determining the tension of the yarn when it is output from the unloading roller.

[0034] An adjusting roller 4 is located below the yarn guide roller 3 on the frame 1. A third drive mechanism for controlling the deflection of the adjusting roller 4 is provided on the frame 1. The third drive mechanism includes shafts fixed to both ends of the adjusting roller, a swing arm 14 fixedly connected to the shafts, a rotating shaft 15 fixedly connected to one end of the swing arm, a swing arm 16 fixedly connected to the rotating shaft, and an electric telescopic rod 17 hinged to one side of the frame. The two rotating shafts 15 are rotatably connected to both sides of the frame 1 through bearings, and the telescopic end of the electric telescopic rod 17 is pivotally connected to the lower end of the swing arm 16.

[0035] A control box is installed on one side of the frame 1. The control box contains a controller. The signal input terminal of the controller is electrically connected to the pressure sensor and the encoder. The signal output terminal of the controller is electrically connected to the first motor, the second motor and the electric telescopic rod.

[0036] The principle of this embodiment is as follows: a pressure sensor senses the pressure during yarn delivery and transmits the signal to the controller. The controller then transmits the signal to the electric telescopic rod based on the pressure value. The electric telescopic rod adjusts the position of the adjusting roller, thereby adjusting the tension. An encoder senses the number of rotations of the unloading roller and transmits the signal to the controller. The controller calculates the length of the delivered yarn. When the required delivery amount is reached, the controller controls the second motor to stop working and stops delivery.

[0037] Example 2

[0038] Based on Embodiment 1, the mounting groove 5 is provided with multiple sliding grooves 18, and the outer wall of the slide block 8 is connected to a slider 19 that cooperates with the sliding groove. The slider 19 is slidably connected in the corresponding sliding groove 18. Through the cooperation of the sliding groove and the slider, the stability of the slide block's movement in the mounting groove can be improved.

[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fabric feeding mechanism, comprising a frame (1) consisting of two opposing wall panels, characterized in that: A yarn feeding roller (2) is rotatably connected to the frame (1). A yarn guide roller (3) is rotatably connected to the side of the frame (1) below the yarn feeding roller. A first drive mechanism for driving the yarn feeding roller (2) to rotate and a second drive mechanism for driving the yarn guide roller (3) to rotate are installed on one side of the frame (1). A pressure detection mechanism is provided on the yarn guide roller (3). An adjustment roller (4) is provided on the frame (1) below the yarn guide roller (3). A third drive mechanism for controlling the deflection of the adjustment roller (4) is provided on the frame (1). The yarn guide roller (3) is provided with an installation groove (5) along its length direction. The pressure detection mechanism includes a pressure sensor (6), a spring (7), a slide (8), and an arc plate (9). The pressure sensor (6) is installed on the side wall of the installation groove (5). The spring (7) is connected to one side of the pressure sensor (6). The slide (8) is slidably connected in the installation groove (5). The inner side of the slide (8) is connected to the spring (7). The outer side of the slide (8) extends to the outside of the yarn guide roller (3), and the extended end is connected to an arc plate (9) concentric with the yarn guide roller (3).

2. The fabric warp metering conveying mechanism according to claim 1, characterized in that: The first drive mechanism includes a first motor (10) mounted on one side of the frame (1), a first gear (11) connected to the motor shaft of the first motor, and a second gear (12) connected to one end of the yarn feeding roller, wherein the first gear (11) and the second gear (12) mesh.

3. The fabric warp metering conveying mechanism according to claim 2, characterized in that: Inside the rear end cover of the first motor (10), an encoder is coaxially connected to the motor rotor via a grating disk.

4. The fabric warp metering conveying mechanism according to claim 3, characterized in that: The second drive mechanism includes a second motor (13) mounted on one side of the frame, and the motor shaft of the second motor (13) is connected to one end of the yarn guide roller (3) via a coupling.

5. A fabric warp metering conveying mechanism according to claim 4, characterized in that: The third drive mechanism includes shafts fixed to both ends of the adjusting roller, a swing arm (14) fixedly connected to the shafts, a rotating shaft (15) fixedly connected to one end of the swing arm, a swing arm (16) fixedly connected to the rotating shaft, and an electric telescopic rod (17) hinged to one side of the frame. The two rotating shafts (15) are rotatably connected to both sides of the frame (1) through bearings, and the telescopic end of the electric telescopic rod (17) is pivotally connected to the lower end of the swing arm (16).

6. The fabric warp metering conveying mechanism according to claim 5, characterized in that: A control box is installed on one side of the frame (1). The control box contains a controller. The signal input terminal of the controller is electrically connected to the pressure sensor and the encoder. The signal output terminal of the controller is electrically connected to the first motor, the second motor and the electric telescopic rod.

7. A fabric weft metering conveying mechanism according to claim 6, characterized in that: The mounting groove (5) is provided with multiple sliding grooves (18), and the outer wall of the slide block (8) is connected with a slider (19) that cooperates with the sliding groove. The slider (19) is slidably connected in the corresponding sliding groove (18).

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