CN102162161A - Track controllable circular loom groove cam shedding mechanism - Google Patents

Abstract

The invention relates to a track-controllable groove cam shedding mechanism of a circular loom, which includes a shedding actuator and a shedding control mechanism. The shedding actuator includes a groove cam synchronized with the movement of a shuttle and a slide bar linked with the warp yarn. The grooved cam includes a partially branched groove and a slider that can slide in the groove and be linked with the warp yarn. The branched part of the groove is divided into an ascending groove and a descending groove. The unbranched part of the groove is the groove of the flat heald stationary section; the groove of the stationary section of the flat heald is connected with the groove of the rising section and the groove of the descending section through the groove of the selection section; the groove of the sliding bar It is connected with the grooved cam through the slider; the opening control mechanism includes a selection device arranged on the grooved cam. The invention enables the circular loom to weave various jacquard fabric structures and patterns, and weave single-layer and three-dimensional three-dimensional tubular fabrics that meet requirements.

Description

A Track-Controllable Groove Cam Opening Mechanism for Circular Looms

technical field

The invention relates to an opening mechanism of a circular loom, in particular to a track-controllable groove cam opening mechanism of a circular loom.

Background technique

Compared with traditional looms, circular looms have the advantages of simple structure, high efficiency and low energy consumption. However, because there are only two mechanical opening methods of the cam and the line splitter so far, the organizational structure of the products produced by the circular loom is single, and there are only a small number of applications in the field of producing industrial fabrics, such as seamless bags, Seamless tubular (tubular) fabrics such as filter pipes and fire hoses.

Among the existing circular looms, the circular looms with cam openings account for a large proportion. Regardless of whether a grooved cam (Chinese invention patent ZL 01260524.7) or a flat cam (Chinese invention patent ZL 200820133947.X) is used, the law of the opening movement is determined by the profile of the opening cam and is fixed. Therefore, the circular loom of this cam opening can only weave simple, regular fabric weaves, and cannot weave complex and irregular jacquard weaves and three-dimensional three-dimensional tubular fabrics.

Existing thread-distributing disc shedding circular loom does not have shedding cam, and a thread-distributing disc is hinged at the front end of shuttle. Under the action of warp yarn and heald reed, the line dividing disc that moves forward together with the shuttle generates rotation. The warp yarns with a certain tension will fall into the pre-processed top or grooves on the thread distribution disc after passing through the warp yarn guides, thereby forming openings. As a kind of mechanical device, the thread-distributing disc can only form several fabric weaves that are simple and repeated according to certain rules, and cannot weave complex and irregular jacquard weaves and three-dimensional tubular fabrics.

The programmable cam opening technology of the traditional loom is fully mature, not only the forms of the cam are various, but also the control method is very flexible and reliable. Utilizing the programmable cam shedding technology, traditional flat looms have been able to weave various jacquard structures and patterns. But the cam shedding technology of the flat loom cannot be used for the circular loom, because it can only form a complete shed at a certain specified moment, and cannot form the continuously moving shed required by the circular loom.

To give full play to the advantages of the circular loom and expand the application field of the products of the circular loom, it is necessary to invent a programmable cam opening mechanism for the circular loom. Although the purpose of the programmable cam mechanism of this circular loom to be achieved is the same as that of the traditional loom, the method for realizing this purpose is completely different. On the traditional loom, all warp yarns only need to form a same shed at a uniform opening time in a weaving cycle. On circular looms, however, each warp thread or group of warp threads is individually controlled, forming several sheds that move continuously in synchronization with the shuttle over the entire circumference.

Contents of the invention

The technical problem to be solved by the present invention is to provide a circular loom groove cam opening mechanism with controllable track, so that the circular loom can also weave various jacquard fabric structures and patterns, and weave single fabrics that meet the requirements. Layers and three-dimensional tubular fabrics.

The technical solution adopted by the present invention to solve the technical problem is to provide a track-controllable circular loom groove cam opening mechanism, including an opening actuator and an opening control mechanism. A groove cam and a slide bar linked with the warp yarn, the groove cam includes a partially branched groove and a slide block that can slide in the groove and be linked with the warp yarn, the branch part of the groove is divided into The groove of the ascending section and the groove of the descending section, the branch part of the groove is the groove of the stationary section of the flat heald; the groove of the stationary section of the flat heald is connected with the groove of the rising section and The descending section grooves are connected; the opening control mechanism control includes a selection device arranged on the groove cam.

The selection device is a movable block that can swing up and down; the movable block is arranged at the front end of the branch portion of the groove.

The selection device is two curved guide plates that swing up and down, and the two curved guide plates are respectively installed on both sides of the groove of the selection section.

The selection device is two electromagnets, and the two electromagnets are respectively installed on both sides of the groove of the selection section.

A bottom groove is arranged in the groove of the selection section; the selection device is a selection pin on the slider.

Beneficial effect

Owing to having adopted above-mentioned technical scheme, the present invention has following advantage and positive effect compared with prior art: 1, each root or each group of warp yarns can be controlled separately, form the required shed before the shuttle of circular loom arrives , to weave complex jacquard patterns and weaves; 2. The control mechanism can be controlled by a computer. When changing the fabric weave structure, only the control program needs to be changed, and the mechanical structure of the machine does not need to be changed, so that the adjustment of the fabric weave structure and patterns is convenient and high efficiency; 3. Because of the complete opening, there is less friction between the warp yarn and the shuttle, and less damage to the warp yarn.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present invention;

Fig. 2 is the structural representation of embodiment 2 of the present invention;

Fig. 3 is the structural representation of embodiment 3 of the present invention;

Fig. 4 is a schematic structural diagram of Embodiment 4 of the present invention.

Detailed ways

Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

The invention relates to a track-controllable groove cam opening mechanism of a circular loom, which uses a groove cam, and the groove cam has a partially branched groove. The control mechanism is on the groove cam, which guides the slider in the groove into a certain branch thereof according to the program requirements, so that the warp yarn is opened up or down before the arrival of the shuttle. The circular loom has several shuttles and several sets of control mechanisms, so that the shedding action of each or each group of warp yarns can be controlled separately.

Embodiment 1: This embodiment relates to a track-controllable circular loom groove cam opening mechanism, as shown in Figure 1, including an opening actuator and an opening control mechanism. The groove cam 2 and the slide bar 4 linked with the warp yarn 3, the groove cam 2 includes a groove with a local branch and a slider 5 that can slide in the groove and be linked with the warp yarn, the groove The branch part of the groove is divided into the groove 6 of the ascending section and the groove 7 of the descending section, and the unbranched part of the groove is the groove 8 of the flat heald static section; the groove 8 of the flat heald static section passes through the groove of the selection section The groove 9 is connected with the groove 6 of the ascending section and the groove 7 of the descending section; the slide bar 4 is connected with the groove cam 1 through the slide block 5 . A movable block 11 as a selection device that can swing up and down is provided at the front end of the branch portion of the groove. The up and down swing of the movable stopper 11 is controlled by the opening control mechanism, and the movable stopper 11 controlled by the program swings up and down, guiding the slide block 5 linked with the warp yarn 3 to enter the rising section groove 6 or the groove cam 2 according to the requirements of the program. Descending section groove 7. In FIG. 1 , the slider 5 moves from left to right in the groove relative to the groove cam 2 . At this moment, if movable block 11 swings to the solid line position shown in Figure 1 according to the program, slide block 5 is just guided to the ascending section groove 6 that enters grooved cam 2. On the contrary, if movable block 11 swings to the dotted line position shown in the figure according to the program, slide block 5 is just guided to the descending section groove 7 that enters grooved cam 2.

Embodiment 2: This embodiment relates to a track-controllable circular loom groove cam opening mechanism, as shown in Figure 2, which includes an opening actuator and an opening control mechanism. A groove cam and a slide bar linked with the warp yarn, the groove cam includes a partially branched groove and a slide block that can slide in the groove and be linked with the warp yarn, the branch part of the groove is divided into The groove of the ascending section and the groove of the descending section, the unbranched part of the groove is the groove of the stationary section of the flat heald; the groove of the stationary section of the flat heald is connected with the groove of the ascending section and The descending section grooves are connected; the slide bar is connected with the groove cam through the slide block. Two curved guide plates 12 that can swing up and down as selection devices are installed on both sides of the selection section groove 9 . The up and down swing of the curve guide plate 12 is controlled by the opening control mechanism, and the curve guide plate 12 controlled by the program swings up and down synchronously, guiding the slider 5 linked with the warp yarn to enter the ascending groove 6 or the descending groove of the groove cam according to the requirements of the program. Slot 7. In Fig. 2, the slider 5 moves from right to left in the groove relative to the groove cam. At this time, if the curve guide plate 12 swings to the solid line position shown in the figure according to the program, the slide block 5 will be guided into the rising section groove 6 of the groove cam. On the contrary, if the curve guide plate 12 swings to the double-dashed line position shown in the figure according to the program, the slide block 5 is just guided into the descending section groove 7 of the groove cam.

Embodiment 3: This embodiment relates to a track-controllable circular loom groove cam opening mechanism, as shown in Figure 3, including an opening actuator and an opening control mechanism. The opening actuator includes a A groove cam and a slide bar linked with the warp yarn, the groove cam includes a partially branched groove and a slide block that can slide in the groove and be linked with the warp yarn, the branch part of the groove is divided into The groove of the ascending section and the groove of the descending section, the unbranched part of the groove is the groove of the stationary section of the flat heald; the groove of the stationary section of the flat heald is connected with the groove of the ascending section and The descending section grooves are connected; the slide bar is connected with the groove cam through the slide block. Two electromagnets 13 as selection devices are installed on both sides of the selection segment groove 9 . The direction of the magnetic line of force of the electromagnet 13 is controlled by the opening control mechanism, and the electromagnet controlled by the program generates a magnetic force to attract the slider 5 linked with the warp yarn into the ascending groove 6 or the descending groove of the groove cam according to the requirements of the program. Slot 7. In Fig. 3, the slider 5 moves from right to left in the groove relative to the groove cam. At this time, if the electromagnet 13 above the selection section groove 9 has magnetism, the slide block 5 that can be attracted (or repelled) by the electromagnet 13 is guided to the ascending section groove 6 that enters the groove cam. On the contrary, if the electromagnet 13 located below the selection section groove 9 has magnetism, the slide block 5 which can be attracted by the magnet is just guided to the descending section groove 7 entering the groove cam.

Embodiment 4: This embodiment relates to a track-controllable circular loom groove cam opening mechanism, as shown in Figure 4, which includes an opening actuator and an opening control mechanism. The opening actuator includes a A groove cam and a slide bar linked with the warp yarn, the groove cam includes a partially branched groove and a slide block that can slide in the groove and be linked with the warp yarn, the branch part of the groove is divided into The groove of the ascending section and the groove of the descending section, the unbranched part of the groove is the groove of the stationary section of the flat heald; the groove of the stationary section of the flat heald is connected with the groove of the ascending section and The descending section grooves are connected; the slide bar is connected with the groove cam through the slide block. A bottom groove 10 is arranged in the groove 9 of the selection section, and a retractable selection pin 14 is arranged on the slider 5 . Whether the selection pin 14 protrudes is controlled by the opening control mechanism, and the selection pin 14 controlled by the program makes the slider enter the rising section groove 6 or the falling section groove of the groove cam according to the requirements of the program when the selection pin 14 passes through the selection section groove 9 7. In Fig. 4, the slider 5 moves from right to left in the groove relative to the groove cam. After slide block 5 entered selection section groove 9, if selection pin 14 stretched out, slide block 5 entered ascending section groove 6 along bottom groove 10; On the contrary, slide block 5 just entered descending section groove 7 by restoring force. That is to say, when the selection pin 14 stretches out in the selection section groove 9, the slider 5 will enter the ascending section groove 6 along the bottom groove 10; Block 5 enters groove 7 in the descending section.

It is not difficult to find that the present invention can make the slide bar take the warp yarn to form a shed synchronously with the shuttle according to the set program, and weave any designed jacquard fabric or three-dimensional fabric on the circular loom. Therefore, the present invention has the advantages of high reliability, good applicability, convenient and fast fabric tissue replacement, etc. It can be used to produce tubular fabrics with special tissue structures, and can also be used to produce three-dimensional three-dimensional tubular fabrics with complex tissue structures. , which is quite flexible to use.

Claims (5)

1. the controllable circular loom grooved cam of track shedding mechanism, comprise opening executing agency and opening controlling organization, described opening executing agency comprise with the grooved cam (2) of shuttle (1) synchronized movement and with the slide bar (4) of warp thread (3) interlock, it is characterized in that, the slide block (5) that described grooved cam (2) comprises the groove of a partial-band branch and can slide in groove and link with warp thread, the component of described groove is divided into ascent stage groove (6) and descending branch groove (7), described groove be the flat static segment groove (8) of combining for component; The described flat static segment groove (8) of combining links to each other with descending branch groove (7) with described ascent stage groove (6) by selecting section groove (9); Described opening controlling organization control comprises the selecting arrangement that is arranged on the described grooved cam (2).

2. the controllable circular loom grooved cam of track according to claim 1 shedding mechanism is characterized in that, the active block stop (11) of described selecting arrangement for swinging up and down; Described active block stop (11) is arranged on the front end of the component of described groove.

3. the controllable circular loom grooved cam of track according to claim 1 shedding mechanism, it is characterized in that, described selecting arrangement is two curve guide plates (12) that swing up and down, and described two curve guide plates (12) are installed in the described both sides of selecting section groove (9) respectively.

4. the controllable circular loom grooved cam of track according to claim 1 shedding mechanism is characterized in that described selecting arrangement is two blocks of electromagnet (13), and described two blocks of electromagnet (13) are installed in the described both sides of selecting section groove (9) respectively.

5. the controllable circular loom grooved cam of track according to claim 1 shedding mechanism is characterized in that, is provided with undercut (10) in the described selection section groove (9); Described selecting arrangement is the selection pin (14) on the slide block (5).

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