CN102418199B - Circular Loom and Its Warp Lifting Control Method - Google Patents

Abstract

The invention relates to a circular loom and a warp lifting control method thereof, wherein the circular loom comprises: the device comprises a rotating main shaft fixed on the central axis of a disc-shaped shuttle pusher, two groups of warp lifting rods arranged outside the disc-shaped shuttle pusher and adjacently arranged inside and outside the disc-shaped shuttle pusher, a large gear positioned on the rotating main shaft and in transmission fit with a driving motor to drive the disc-shaped shuttle pusher to rotate, a warp lifting driving mechanism arranged below the disc-shaped shuttle pusher, and a circular grating encoder arranged at the bottom of the rotating main shaft and used for detecting the angle information of a shuttle on the disc-shaped shuttle pusher; the warp lifting drive mechanism includes: first and second warp lifting drive devices for driving the two groups of warp lifting rods to respectively perform warp lifting and warp lowering motions, the warp lifting drive device comprising: the warp lifting device comprises a warp lifting rod frame used for fixing a group of warp lifting rods and a linear displacement driver connected with the warp lifting rod frame, wherein the linear displacement driver is suitable for driving the warp lifting rods on the warp lifting rod frame to carry out warp lifting or warp lowering movement according to the angle information of the shuttle and carrying out weaving.

Description

Circular Loom and Its Warp Lifting Control Method

technical field

The invention relates to a circular loom and a warp lifting control method thereof. the

Background technique

The circular loom is a special machine for weaving larger plastic packaging products. It weaves plastic filaments into various packaging products, such as round woven bags, by weaving warp and weft threads intersecting each other. In the control of warp and weft crossing, the space cam is driven by a high-power AC motor, thereby driving a number of lever mechanisms to control the warp lifting ring to drive the warp to move upward and downward, forming a weft threading opening for the circularly moving shuttle to pass through the warp at the upper and lower intervals , forming intersecting warp and weft knitted products. the

The above-mentioned circular looms in the prior art use a mechanical space cam to drive a number of levers to move to lift the warp. One end of the lever moves in the curved groove of the space cam to generate a relatively large frictional force, which causes a large load on the AC drive motor, which leads to power consumption. The amount is large, and the motor is often overloaded and burned. Secondly, the reducer that cooperates with the transmission of the AC drive motor bears a large transmission torque, and it is easy to break the gear teeth in the gearbox. Again, the friction between the lever and the space cam is easy to wear the friction part, which has a strong impact on the service life of the circular loom, and the working noise is large at the same time. the

Chinese patent document CN2518877 discloses a six-shuttle circular loom. When it is working, the rotation of the cam mounted on the main shaft drives the slider to move, and drives the long and short slings to reciprocate up and down, and then drives the warp to alternate up and down, thereby realizing Opening action, because when the shuttle pusher rotates, it promotes the shuttle to make a rotary motion, and continuously passes through the warp thread that is periodically opened and crossed, weaves the weft thread into it, and completes the weaving work of the warp thread and weft thread. This solution also has the problems of heavy load on the AC drive motor, severe cam wear, short service life and high operating noise. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a circular loom with low energy consumption, long service life and low working noise and its warp lifting control method. the

In order to solve the above technical problems, the present invention adopts a circular loom, comprising: a disc-shaped shuttle pusher, a rotating main shaft fixed on the central axis of the disc-shaped shuttle pusher, arranged on the outer side of the disc-shaped shuttle pusher and adjacent to the inside and outside The set of two groups of sutra lifting rods, the large gears located on the rotating main shaft and cooperating with a drive motor to drive the disc-shaped shuttle pusher to rotate, are characterized in that they also include: a warp lifting control device; the warp lifting control device includes: The warp lifting drive mechanism below the disc-shaped shuttle pusher, the circular grating encoder used to detect the angle information of the shuttle on the disc-shaped shuttle pusher at the bottom of the rotating main shaft; the warp lifting drive The mechanism includes: the first and second warp lifting driving devices for driving the two groups of warp lifting rods to perform the warp lifting and descending movements respectively, the first and second warp lifting driving devices have the same structure, and the first warp lifting driving device It includes: a warp lifting rod frame for vertically and alternately fixing a group of warp lifting rods and a linear displacement driver connected to the warp lifting rod frame, and the linear displacement driver is suitable for driving the warp lifting rod according to the angle information of the shuttle The warp-lifting rod on the rack performs warp-lifting or warp-dropping motion and implements weaving. the

Further, in order to control the linear displacement driver to coordinate corresponding actions according to the rotational position of the shuttle, the circular grating encoder and the linear displacement driver are connected with a controller. When the grating encoder and the disc-shaped shuttle pusher cooperate to rotate horizontally and synchronously, the circular grating encoder collects the angle information of the shuttle set on the disc-shaped shuttle pusher, and the controller controls the linear displacement driver through the collected angle information of the shuttle. Each sutra-lifting rod frame is driven to drive the warp-lifting rods to perform corresponding warp-lifting or descending motions. the

Further, the warp lifting rod frame is provided with 5-10 warp lifting rods, so that a plurality of warp threads on the top of the warp lifting rods form a deeper shed at one time, and a single weft thread is combined with 5-10 warp threads at a time. Interweaving is carried out, thereby improving weaving efficiency. the

Further, each sutra-lifting rod on the said sutra-lifting rod frame is distributed in an arc shape, and the diameter of the arc is equal to the diameter of the disc-shaped shuttle pusher, so that the disc-shaped shuttle pusher can drive the shuttle to pass through the shed. , to prevent disconnection. the

Further, in order to improve the weaving efficiency, the two sets of warp lifting rods form a pair of warp lifting rod groups, and there are many pairs of warp lifting rod groups evenly distributed on the outer periphery of the disc-shaped shuttle pusher. the

The working method of the above-mentioned circular loom lifting control device includes:

①. Control the disc-shaped shuttle pusher to rotate horizontally, and the shuttle on the disc-shaped shuttle pusher will rotate accordingly;

②. The circular grating encoder arranged at the bottom of the rotating main shaft of the disc-shaped shuttle pusher follows the rotation of the disc-shaped shuttle pusher, and the controller detects the angle information of the shuttle in real time through the circular grating encoder;

③, when the measured shuttle rotates to the angle at which the two sets of warp lifting rods on one side of the disc-shaped shuttle pusher form the shed opening, the controller controls the first and second linear drivers to drive the first and second warp lifting rods respectively The warp lifting bar on the frame performs warp lifting and warp lowering movements to form a shed, and the disc-shaped shuttle pusher drives the shuttle to pass through the shed, and the weft on the shuttle interweaves with the warp on the top of the warp lifting bar;

④. When the angle at which the shuttle turns back to the shed is measured, the controller controls the first and second linear drivers to respectively drive the warp lifting rods on the first and second warp lifting rod racks to perform lowering and warp lifting motions, To form a shed again, and make the shuttle pass through the shed again, so that the weft and warp will interweave again;

⑤. Repeat the above steps ③-④.

The technical effect of the present invention: (1) Use linear drive to replace the space cam in the original circular loom to drive several levers to lift the warp, avoid the large friction force generated by the movement of the space cam curved groove, reduce the power of the AC drive motor, and save electric energy ; (2) It avoids the wear between the lever and the space cam, reduces the noise, improves the service life of the circular loom, and thus greatly reduces the use and maintenance costs. the

Description of drawings

In order to make the content of the present invention more easily understood clearly, the present invention will be described in further detail below in conjunction with the specific embodiments according to the accompanying drawings, wherein

Fig. 1 is the structural representation of the circular loom of the present invention and its warp lifting control device;

Fig. 2 is a partial view along the direction A of Fig. 1 .

Detailed ways

The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

(Example 1)

As shown in Fig. 1-2, the circular loom of the present invention improves the warp lifting control part on the basis of the traditional circular loom. The rotating main shaft 2 on the central axis of the bottom surface of the disc-shaped shuttle pusher 1, two groups of warp lifting rods 3 arranged outside the disc-shaped shuttle pusher 1 and arranged adjacently inside and outside, are located on the rotating main shaft 2 and are driven by a driving motor. Cooperate with the big gear 4 that drives disc-shaped shuttle pusher 1 to rotate and the warp lifting control device.

The warp lifting control device includes: a warp lifting drive mechanism 5 arranged below the disc-shaped shuttle pusher 1, a shuttle 6 arranged at the bottom of the rotating main shaft 2 for detecting the disc-shaped shuttle pusher 1 The angle information of the circular grating encoder 7. Shuttle 6 is generally 4 or 6, even more, is evenly distributed on the disc-shaped shuttle pusher 1. the

Described warp lifting bar 3 is also called " brown bar ", is the device for lifting warp thread. the

The sutra lifting driving mechanism 5 includes: first and second sutra lifting driving devices 5-1, 5-2 for driving the two groups of sutra lifting rods 3 to perform warp lifting and descending movements respectively. the

The first and second sutra-lifting drive devices 5-1, 5-2 are identical in structure, and the first sutra-lifting drive device 5-1 comprises: a set of sutra-lifting bar frames 8 for vertically alternately fixing a group of sutra-lifting rods 3 and the A linear displacement driver 9 connected to the warp lifting rod frame 8, which is suitable for driving the warp lifting rod 3 on the warp lifting rod frame 8 according to the angle information of the shuttle 6 for warp lifting or descending Exercise and practice weaving. the

In order to control the linear displacement driver to coordinate corresponding actions according to the rotational position of the shuttle, the circular grating encoder 7 and the linear displacement driver 9 are connected with a controller. When the grating encoder 7 and the disc-shaped shuttle pusher 1 horizontally rotated synchronously, the circular grating encoder 7 collected the angle information of the shuttle 6 arranged on the disc-shaped shuttle pusher 1, and the controller passed the angle information of the collected shuttle 6 The information control linear displacement driver 9 drives each warp-lifting rod frame 8 to drive the warp-lifting rod 3 to perform corresponding warp-lifting or descending motions. the

Described warp-lifting bar frame 8 is fixedly provided with 5-10 root warp-lifting bars vertically and alternately, so that a plurality of warp threads on the top of the warp-lifting bar form a deeper shed at one time, and a single weft thread is combined with 5-10 root warps simultaneously. The warp threads are interlaced to improve weaving efficiency. the

Each sutra-lifting bar 3 on the described sutra-lifting bar frame 8 is distributed in an arc shape, and the diameter of this arc is equal to the diameter of the disc-shaped shuttle pusher 1, so that the disc-shaped shuttle pusher 1 drives the shuttle 6 from the described Pass through the shed to prevent thread breakage. the

As an optimized embodiment, in order to improve the weaving efficiency, the two groups of warp lifting rods 3 form a pair of warp lifting rod groups, and there are 3-10 pairs of warp lifting rod groups evenly distributed on the outer periphery of the disc-shaped shuttle pusher 1 . the

(Example 2)

On the basis of the circular loom described in Embodiment 1, the warp raising control method of the circular loom of this embodiment includes:

①. Control the disc-shaped shuttle pusher 1 to rotate horizontally, and the shuttle 6 on the disc-shaped shuttle pusher 1 rotates accordingly;

②. The circular grating encoder 7 located at the bottom of the rotating main shaft 2 of the disc-shaped shuttle pusher 1 follows the rotation of the disc-shaped shuttle pusher 1, and the controller detects the angle information of the shuttle 6 in real time through the circular grating encoder 7 ;

3. When the measured shuttle 6 rotates to the angle at which the two sets of warp lifting rods 3 on one side of the disc-shaped shuttle pusher 1 form a shed opening, the controller controls the first and second linear drivers 5-1, 5-2 Drive respectively the warp-lifting bar 3 on the first and second warp-lifting bar frames 8-1, 8-2 for warp-lifting and warp-falling motions to form a shed, and the disc-shaped shuttle pusher 1 drives the shuttle 6 from the shuttle Pass through the mouth, the weft thread on the shuttle 6 interweaves with the warp thread at the top of the warp lifting bar 3;

4. When measuring the angle at which the shuttle 6 turns back to the shed opening again, the controller controls the first and second linear drivers 5-1 and 5-2 to drive the first and second warp lifting rod frames 8-1 and 8-1 respectively. The warp lifting bar 3 on the 8-2 performs descending and warp lifting motions to form a shed again, and the shuttle 6 passes through the shed again, so that the weft thread and the warp thread are interwoven again;

⑤. Repeat the above steps ③-④ until the weaving is completed.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention. the

Claims (6)

1. A circular loom, comprising: a disc-shaped shuttle pusher (1), a rotating main shaft (2) fixed on the central axis of the disc-shaped shuttle pusher (1), a disc-shaped shuttle pusher (1) Two sets of warp lifting rods (3) arranged on the outside and inside and outside adjacent to each other, and a large gear (4) that is located on the rotating main shaft (2) and cooperates with a drive motor to drive the disc-shaped shuttle pusher (1) to rotate. It also includes: a sutra lifting control device; The warp lifting control device includes: a warp lifting drive mechanism (5) arranged under the disc-shaped shuttle pusher (1), and a warp-lifting drive mechanism (5) arranged at the bottom of the rotating main shaft (2) for detecting the disc-shaped shuttle pusher. (1) A circular grating encoder (7) for angular information on the shuttle (6); The sutra-lifting drive mechanism (5) includes: first and second sutra-lifting drive devices (5-1, 5-2) for driving the two sets of sutra-lifting rods (3) to perform sutra-lifting and descending movements respectively ), the first and second warp-lifting drive devices (5-1, 5-2) have the same structure, and the first warp-lifting drive device (5-1) includes: a set of warp-lifting rods (3) that are used to vertically and alternately fix A warp lifting rod frame (8) and a linear displacement driver (9) connected to the warp lifting rod frame (8), the linear displacement driver (9) is suitable for driving the lifting rod according to the angle information of the shuttle (6). The warp-lifting rod (3) on the warp rod frame (8) is used for warp-lifting or warp-falling motion and implements weaving. 2. The circular loom according to claim 1, characterized in that: the circular grating encoder (7) and the linear displacement driver (9) are connected to a controller, and the circular grating encoder (7) is connected to the disc Shuttle pusher (1) horizontally rotates synchronously. 3. The circular loom according to claim 1, characterized in that 5-10 warp lifting rods (3) are arranged on the warp lifting rod frame (8). 4. The circular loom according to claim 1, characterized in that: the warp-lifting rods (3) on the warp-lifting rod frame (8) are distributed in an arc shape, and the diameter of the arc is the same as that of the disc-shaped push rod. The diameters of the shuttles (1) are equal. 5. The circular loom according to claim 1, characterized in that: the two sets of warp lifting rods (3) form a pair of warp lifting rod groups, and there are many pairs of disc-shaped shuttle pushers (1) evenly distributed on the periphery Lifting rod set. 6. A warp lifting control method of a circular loom, comprising the following steps: ①. Control the disc pusher (1) to rotate horizontally, and the shuttle (6) on the disc pusher (1) will rotate accordingly; ②. The circular grating encoder (7) located at the bottom of the rotating main shaft (2) of the disc-shaped shuttle pusher (1) follows the rotation of the disc-shaped shuttle pusher (1), and the controller passes the circular grating encoder (7) ) detecting the angle information of the shuttle (6) in real time; ③. When the measured shuttle (6) rotates to the angle at which the two sets of warp lifting rods (3) on one side of the disc pusher (1) form the shed opening, the controller controls the first and second linear displacement drivers Drive the warp-lifting rods (3) on the first and second warp-lifting rod racks respectively for warp-lifting and warp-lowering movements to form a shed, and the disc-shaped shuttle pusher (1) drives the shuttle (6) from the shed After passing through, the weft thread on the shuttle (6) interweaves with the warp thread on the top of the warp lifting bar (3); ④. When the angle at which the shuttle (6) turns back to the shed is measured, the controller controls the first and second linear displacement drivers to respectively drive the warp lifting rods (3) on the first and second warp lifting rod frames Perform descending and lifting motions to form a shed again, and make the shuttle (6) pass through the shed again, so that the weft and warp are interwoven again; ⑤. Repeat the above steps ③-④.

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