阅读说明：本技术 一种送纱机构、结经机和送纱方法 (Yarn feeding mechanism, warp tying machine and yarn feeding method ) 是由 黄焕明 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种送纱机构,安装在结经机框架上,包括与接经机主轴传动连接的第一传动杆,固定于所述第一传动杆上的吸纱机构；所述吸纱机构包括分气块、与所述分气块对应通道连通的两根气管以及可拆卸安装在对应气管上的吸纱嘴；本发明还公开了一种包括上述送纱机构的接经机以及一种送纱方法。本发明通过设置一进两吸的分气块,使两根气管处于连通状态,两个吸纱嘴必须同时吸纱线,吸纱嘴才能起到吸的作用,如果仅一根纱线到位,则无法吸取,有效替代了传统设备防止钩单纱的装置,简化了设备结构,降低了失误率。(The invention discloses a yarn feeding mechanism which is arranged on a frame of a warp tying machine and comprises a first transmission rod in transmission connection with a main shaft of a warp receiving machine and a yarn sucking mechanism fixed on the first transmission rod; the yarn suction mechanism comprises a gas distribution block, two air pipes communicated with corresponding channels of the gas distribution block and yarn suction nozzles detachably mounted on the corresponding air pipes; the invention also discloses a warp receiving machine comprising the yarn feeding mechanism and a yarn feeding method. According to the invention, the two air pipes are in a communicated state by arranging the air distributing block with one air inlet and two air inlets, the two yarn suction nozzles can suck yarns at the same time, and the yarn suction nozzles can only suck the yarns, if only one yarn is in place, the yarn cannot be sucked, so that a device for preventing single yarn hooking of the traditional equipment is effectively replaced, the equipment structure is simplified, and the error rate is reduced.)

1. A yarn feeding mechanism is arranged on a frame of a warp tying machine and is characterized by comprising a first transmission rod in transmission connection with a main shaft of the warp tying machine and a yarn sucking mechanism fixed on the first transmission rod;

the yarn suction mechanism comprises a gas distribution block, two air pipes communicated with corresponding channels of the gas distribution block and yarn suction nozzles detachably mounted on the corresponding air pipes.

2. The yarn feeding mechanism according to claim 1, further comprising a fixing block fixed to a side of the air tube adjacent to the yarn suction nozzle for preventing relative movement of the two air tubes.

3. The yarn feeding mechanism according to claim 1, further comprising a guide stopper fixed to a frame of the tying machine, wherein the first transmission rod and the air pipe pass through the guide stopper.

4. The yarn feeding mechanism as claimed in claim 1, further comprising a hook hinged on the fixing block for fixing the corresponding yarn suction nozzle.

5. A warp receiving machine, characterized in that it comprises a yarn feeding mechanism according to any one of claims 1 to 4.

6. The warp receiving machine according to claim 5, further comprising a clasping mechanism positioned on one side of the yarn feeding mechanism, wherein the clasping mechanism comprises a mounting block fixed on the frame of the warp receiving machine, two caliper bodies which are rotatably connected to the mounting block and are engaged with each other through gears at the root parts, and a second transmission rod, one end of the second transmission rod is movably connected with one of the caliper bodies, and the other end of the second transmission rod is in transmission connection with the main shaft of the warp receiving machine.

7. The warp splicing machine according to claim 5, further comprising an electromagnetic valve for controlling the generation of negative pressure in the air distribution block and a sensor for detecting the movement of the first transmission rod, wherein when the first transmission rod moves to a position along the yarn feeding direction, the sensor controls the electromagnetic valve to act, and the normal pressure in the air distribution block is recovered.

8. A method of feeding yarn, comprising:

a first transmission rod of the yarn feeding mechanism drives the yarn sucking mechanism to move towards the yarn direction under the transmission of a main shaft of the warp joining machine, when two yarn sucking nozzles of the yarn feeding mechanism are respectively contacted with the yarns, negative pressure is generated at the yarn sucking nozzles by controlling the action of an air source communicated with the air distributing block, so that the two yarns are sucked at the same time, and the first transmission rod of the yarn feeding mechanism drives the yarn sucking mechanism to move towards the yarn feeding direction under the transmission of the main shaft of the warp joining machine so as to convey the yarns to a specified position; because two air pipes of the yarn suction mechanism are in a communicated state, when any one yarn suction nozzle does not suck yarns, the other yarn suction nozzle cannot suck the yarns.

Technical Field

The invention relates to the technical field of warp tying machines, in particular to a yarn feeding mechanism, a warp tying machine and a yarn feeding method.

Background

The tying machine is an automatic device for tying and connecting the yarn on the warp beam of the original machine with the yarn on a new warp beam. Because the traditional connecting mode of manual knotting is changed by the knotting machine, the time and the efficiency for replacing the warp beam are greatly improved, and the knotting machine is widely applied.

The patent specification with the publication number of CN201172723Y discloses a yarn picking device of a warp tying machine, which consists of an upper yarn picking component and a lower yarn picking component, wherein the upper yarn picking component consists of an upper yarn picking needle support, a yarn picking needle seat is arranged on the upper yarn picking needle support, a yarn picking needle is arranged on the yarn picking needle seat, an upper yarn picking needle oscillating bar and a yarn picking needle oscillating bar shaft are arranged outside the upper yarn picking needle support, the yarn picking needle oscillating bar shaft is connected with an upper yarn picking needle spring knob and a yarn picking needle support shaft, and a torsion spring is arranged outside the upper yarn picking needle spring knob. The lower yarn picking component and the upper yarn picking component have the same structure and opposite directions, the direction of a yarn picking needle on the upper yarn picking needle component is downward, and the yarn picking needle on the lower yarn picking needle component is upward. The situation that the warp is punctured, cannot be punctured and a plurality of warp are punctured easily occurs, and the warp tying efficiency is greatly reduced.

The patent specification with publication number CN206607384U discloses a warp tying machine head with high-performance yarn separation, which comprises a warp tying machine head, wherein a yarn separation device, a yarn feeding device, a head driving device and a knotting and yarn cutting device are respectively arranged on the head, the yarn separation device comprises an upper yarn dividing rod and a lower yarn dividing rod, the end part of each yarn dividing rod is provided with a conical yarn dividing head, the periphery of each yarn dividing head is provided with a spiral yarn dividing groove, and the two yarn dividing rods are driven to rotate by a yarn dividing motor. According to the scheme, the yarn separating device is arranged, so that the yarn dividing performance is improved, and the technical defects of puncture, no puncture, multiple puncture and the like are overcome; in addition, the safety of the equipment operation is improved through the wire feeding device. The wire feeder also serves as a safety device, and the structure and principle of the wire feeder will be described with reference to fig. 1.

Wire feeding unit 1 includes two spy silk poles 11 that set up from top to bottom, two spy silk poles 11 connect respectively through respective connecting rod 12 and hinder line pole 13, two all are equipped with the barb on hindering line pole 13, two barb cooperation connection slider 14, 14 a side-mounting of slider has wire feeding hook 15, two yarns about responding to respectively through two spy silk poles 11, only two yarn contact two spy silk poles 11 simultaneously, mention two barbs that hinder on the line pole 13, just can make wire feeding hook 15 seesaw smoothly, in case there is a yarn not get into and touch spy silk pole 11, this barb that hinders on the line pole 13 will restrict and send wire feeding hook 15 motion. Although this scheme can avoid the condition of hook single yarn, the yarn gets into send the silk hook position, and the single line just can break away from out after a certain distance of pulling, if carry out this fault action in succession, then can cause this loose with the yarn, cause the error condition of choosing two yarns. In addition, the scheme needs to finish wire feeding under the matching of the yarn separating device and the wire feeding device, and the structure of the yarn separating device and the wire feeding device is complex, so that the integral structure of the equipment is complicated, and the error rate of the equipment is invisibly improved.

Disclosure of Invention

The invention aims to provide a yarn feeding mechanism, which changes the traditional yarn taking mode, simplifies the equipment structure and reduces the error rate.

A yarn feeding mechanism is arranged on a frame of a warp tying machine and comprises a first transmission rod in transmission connection with a main shaft of the warp tying machine and a yarn sucking mechanism fixed on the first transmission rod;

the yarn suction mechanism comprises a gas distribution block, two air pipes communicated with corresponding channels of the gas distribution block and yarn suction nozzles detachably mounted on the corresponding air pipes.

In this scheme, through setting up one and advancing two branch gas pieces of inhaling, make two tracheas be in the connected state, two are inhaled the yarn mouth and must be inhaled the yarn simultaneously, inhale the yarn mouth and just can play the effect of inhaling, and be not simple traditional negative pressure suction nozzle, if only a yarn targets in place, then unable absorption has effectively replaced traditional equipment and has prevented the device of hook single yarn, has replaced traditional equipment's safeties promptly.

Preferably, the yarn sucking device further comprises a fixing block which is fixed on one side of the air pipe close to the yarn sucking nozzle and prevents the two air pipes from moving relatively.

Preferably, the device further comprises a guide limiting block fixed on the frame of the warp tying machine, and the first transmission rod and the air pipe penetrate through the guide limiting block.

Preferably, the yarn suction device further comprises a clamping hook hinged on the fixing block and used for fixing the corresponding yarn suction nozzle.

Another object of the invention is to provide a warp tying machine comprising the yarn feeding mechanism.

Preferably, the warp tying machine further comprises a clasping mechanism positioned on one side of the yarn feeding mechanism, wherein the clasping mechanism comprises a mounting block fixed on the frame of the warp receiving machine, two caliper bodies which are rotatably connected to the mounting block and are meshed with each other through gears at the roots, and a second transmission rod, one end of the second transmission rod is movably connected with one of the caliper bodies, and the other end of the second transmission rod is in transmission connection with the main shaft of the warp receiving machine.

The yarn feeding mechanism pulls the yarns to move, the pulling force can be gradually increased and finally exceeds the suction force of the yarn suction nozzle, when the yarns move to a specified position, two clamp bodies of the yarn clamping mechanism can be automatically clamped to clamp the yarns, the yarn suction mechanism releases the yarns at the moment, and the original path returns to perform the next yarn suction operation.

Preferably, the warp tying machine further comprises an electromagnetic valve for controlling the negative pressure of the air distributing block and a sensor for detecting the movement of the first transmission rod, when the first transmission rod moves in place along the yarn feeding direction, the sensor controls the electromagnetic valve to act, and the normal pressure in the air distributing block is recovered.

Still another object of the present invention is to provide a yarn feeding method comprising:

a first transmission rod of the yarn feeding mechanism drives the yarn sucking mechanism to move towards the yarn direction under the transmission of a main shaft of the warp joining machine, when two yarn sucking nozzles of the yarn feeding mechanism are respectively contacted with the yarns, negative pressure is generated at the yarn sucking nozzles by controlling the action of an air source communicated with the air distributing block, so that the two yarns are sucked at the same time, and the first transmission rod of the yarn feeding mechanism drives the yarn sucking mechanism to move towards the yarn feeding direction under the transmission of the main shaft of the warp joining machine so as to convey the yarns to a specified position; because two air pipes of the yarn suction mechanism are in a communicated state, when any one yarn suction nozzle does not suck yarns, the other yarn suction nozzle cannot suck the yarns.

The invention has the beneficial effects that:

(1) the traditional yarn taking mode is changed, parts on a plurality of traditional devices are omitted, the structure of the device is simplified, and the error rate is reduced.

(2) The yarn suction mechanism realizes the function of preventing single yarn from knotting by arranging the air distributing block with one inlet and two inlets, omits more safety devices, reduces the error rate of equipment and improves the standard of yarn knotting.

Drawings

FIG. 1 is a schematic structural diagram of a wire feeder in the prior art.

FIG. 2 is a schematic structural view of a yarn feeding mechanism;

FIG. 3 is a side view showing the operation of the yarn feeding mechanism.

Fig. 4 is a schematic structural diagram of the working state of the clasping mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2 and 3, a yarn feeding mechanism comprises a first transmission rod and a yarn sucking mechanism fixed on the first transmission rod; wherein the first transmission rod is in transmission connection with a main shaft 1 of the warp connecting machine; specifically, first drive lever includes first actuating lever 2 and first driven lever 3, and the one end of first actuating lever 2 is provided with the cam of being connected with connecing warp machine main shaft 1, and the other end and first driven lever 3 swing joint drive first actuating lever 2 action through connecing warp machine main shaft 1 to rotate, and then drive first driven lever 3 reciprocating motion.

The yarn suction mechanism specifically comprises a gas distribution block 4, two air pipes 5 communicated with corresponding channels of the gas distribution block 4 and yarn suction nozzles 6 detachably mounted on the corresponding air pipes 5; in order to facilitate the fixation of the air distribution block 4 and the air pipes 5, in the embodiment, the yarn suction mechanism further comprises a fixed block 7, and the fixed block 7 is fixed on one side of the air pipes 5, which is close to the yarn suction nozzle 6, so that the relative movement of the two air pipes 5 is prevented; the fixed block 7 and the air distribution block 4 are both fixed on the first driven rod 3, so that the air distribution block 4 and the air pipe 5 can reciprocate along with the first driven rod 3; specifically, the air distribution block 4 is fixed on the rod body of the first driven rod 3, and the fixed block 7 is fixed at the end of the first driven rod 3.

In order to ensure that the yarn sucking mechanism can move stably, in the embodiment, the yarn feeding mechanism further comprises a guide limiting block, and the guide limiting block is specifically arranged on a frame of the knotter; specifically, the direction stopper includes first fixed plate 8 and second fixed plate 9, and first fixed plate 8 and second fixed plate 9 are connected through two connecting rods 10, and first fixed plate 8 passes through the fix with screw on the tying machine frame. The first fixing plate 8 and the second fixing plate 9 are provided with square holes for the first driven rod 3 to pass through, round holes for the two air pipes 5 to pass through are further formed in the first fixing plate 8, and arc-shaped avoiding notches matched with the air pipes 5 are formed in the positions, where the second fixing plate 9 contacts with the air pipes 5, of the second fixing plate. The guide limiting block can limit the first transmission rod and the air pipe 5, and the stability of the first transmission rod and the reciprocating motion of the air pipe 5 is guaranteed.

In this embodiment, the yarn feeding mechanism still includes two trips 11 that articulate on fixed block 6, and trip 11 is when rotating, and the tip can be connected to the edge of inhaling yarn mouth 6 by the joint, prevents to inhale yarn mouth 6 and drops, and when needing to be changed and inhale yarn mouth 6, only need rotate trip 11, makes trip 11 with inhale yarn mouth 6 separation, alright take off inhaling yarn mouth 6.

The utility model provides a warp splicer, includes above-mentioned yarn feeding mechanism, because yarn feeding mechanism pulling yarn removes the in-process, and the pulling force can crescent, finally can surpass the suction of inhaling yarn mouth 6, so in this embodiment, warp splicer still is provided with the cohesion mechanism that is located yarn feeding mechanism one side. The power of the clasping mechanism is also from the main shaft 1 of the warp receiving machine, and the clasping mechanism and the yarn feeding mechanism work in a coordinated manner.

As shown in fig. 4, the clasping mechanism specifically comprises a mounting block 12 fixed on the frame of the warp receiving machine, two caliper bodies 13 rotatably connected to the mounting block 12 and having the root portions engaged by gears, and a second transmission rod having one end movably connected to one of the caliper bodies 13 and the other end in transmission connection with the main shaft 1 of the warp receiving machine. The second driving rod comprises a second driving rod 14 and a second driven rod 15, one end of the second driving rod 14 is movably connected to the warp receiving machine, the other end of the second driving rod is movably connected with one end of the second driven rod 15, and the other end of the second driven rod 15 is movably connected with one of the pair of pliers bodies 13.

The second driving rod 14 is provided with a projection 141, the projection 141 is matched with a groove on an inner cam of the warp receiving machine, and the cam is in transmission connection with the main shaft 1 of the warp receiving machine through a cam shaft, specifically, the main shaft 1 of the warp receiving machine and the cam shaft are in transmission through mutually meshed bevel gears (not shown). When the main shaft 1 of the warp receiving machine rotates, the cam is driven to rotate, so that the second driving rod 14 is driven to move, finally the second driven rod 15 is driven to do reciprocating motion, the second driven rod 15 drives one of the caliper bodies 13 to move, and meanwhile, the other caliper body 13 meshed with the caliper body 13 is driven to do opening and closing motion together.

After the yarn moves to the designated position, the two clamp bodies 13 of the clasping mechanism can be clasped automatically to clasp the yarn, at the moment, the yarn is released by the yarn absorbing mechanism, and the original path returns to perform the next yarn absorbing operation.

In this embodiment, the warp tying machine further comprises an electromagnetic valve (not shown) for controlling the negative pressure generation of the air distribution block 4 and a sensor (not shown) for detecting the movement of the first transmission rod, when the first transmission rod moves in place along the yarn feeding direction, the sensor controls the electromagnetic valve to act, the normal pressure is restored in the air distribution block 4, and the two yarn suction nozzles 6 release the yarns.

A yarn feeding method specifically comprises the following steps:

a first transmission rod of the yarn feeding mechanism drives the yarn sucking mechanism to move towards the yarn direction under the transmission of a main shaft 1 of the warp joining machine, when two yarn sucking nozzles 6 of the yarn feeding mechanism respectively contact with the yarns, the yarn sucking nozzles 6 generate negative pressure by controlling the action of an air source communicated with an air distributing block 4, so that the two yarns are sucked at the same time, and the first transmission rod of the yarn feeding mechanism drives the yarn sucking mechanism to move towards the yarn feeding direction under the transmission of the main shaft 1 of the warp joining machine to send the yarns to a specified position; because the two air pipes 5 of the yarn suction mechanism are in a communicated state, when any one yarn suction nozzle 6 does not suck the yarn, the other yarn suction nozzle 6 can not suck the yarn, and the function of preventing the single yarn from knotting is realized.

In the moving process of the yarn sucking mechanism, the cohesion mechanism synchronously acts, when the yarn sucking mechanism sends the yarn to a specified position, the two clamp bodies 13 of the cohesion mechanism are automatically cohesive to hold the yarn, the yarn sucking mechanism releases the yarn at the moment, and the original path returns to perform the next yarn sucking operation.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.