CN112796025A

CN112796025A - Automatic stop device for balancing warp tension and circular weaving machine

Info

Publication number: CN112796025A
Application number: CN202110041229.XA
Authority: CN
Inventors: 陈志淡; 陈卫国; 邹虎生; 顾贤初; 许德新; 吴阳春; 陈崇斌; 叶荣成
Original assignee: Yanfeng Group Co Ltd
Current assignee: Yanfeng Group Co Ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-05-14

Abstract

The invention discloses an automatic stop device for balancing the tension of a warp, which belongs to the field of spinning and solves the problem that the tail of the warp is wound with a shuttle due to the lag of a stop signal. The invention is mainly used for effectively preventing the tail of the warp yarn from being wound on the shuttle. The invention also provides a circular weaving machine, which adopts the automatic stopping device for balancing the tension of the warp yarns.

Description

Automatic stop device for balancing warp tension and circular weaving machine

Technical Field

The invention relates to the field of spinning, in particular to an automatic stop device for balancing warp tension and a circular weaving machine.

Background

In the existing circular weaving machine, after the warp yarn is cut off in the process of being conveyed from the warp yarn frame to the main machine or the warp yarn is woven, the main machine can be stopped in time, and a warp stop device is generally arranged. Some are with warp stop device setting on the host computer, for example the disconnected warp silk automatic stop device of plastics circular loom disclosed in utility model patent 201120034868.5, it makes the jumper bar reset after the warp silk disconnection and contact the electricity with the contact tube and switch on and let the host computer shut down to utilize the elasticity of spring, if the condition that appears the warp silk disconnection on the warp frame, or the condition that the warp silk runs out again, utilize the jumper bar to trigger the shut down signal, can relatively lags behind, the host computer can continue to pull the warp silk of disconnection and get into the door circle, lead to the silk tail and the shuttle winding of warp silk. For example, in the circular loom disclosed in the utility model patent 201921545924.4, a detecting device is provided between the main machine and the bobbin creel, and when the warp is broken, the conductive hanging member falls down to contact the conductive base, so that the control circuit of the main machine reduces the rotating speed of the main machine. Because the conductive base is positioned at the end point of the falling stroke of the conductive pendant, the falling of the conductive pendant needs a certain time, and a shutdown signal is easy to lag, so that the filament tail of the warp is wound on the shuttle.

Disclosure of Invention

The invention aims to provide an automatic stopping device for balancing the tension of a warp yarn, which effectively prevents the yarn tail of the warp yarn from being wound on a shuttle.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a balanced tensile automatic stop device of warp yarn, includes support and a plurality of cantilever, is equipped with the determine module who is used for producing shutdown signal on the support, and the cantilever can hang on the warp yarn and receive the action of gravity to make the warp yarn tensioning, and a warp yarn corresponds a cantilever, and the cantilever falls after its warp yarn that corresponds loses tension, and determine module is located between the starting point and the terminal point of cantilever whereabouts motion stroke, and the cantilever triggers determine module at the whereabouts motion in-process and produces shutdown signal.

Furthermore, the detection assembly comprises a conductive rod and a detection circuit, the cantilever and the conductive rod are electrically connected to the detection circuit, and the cantilever contacts the conductive rod in the falling process to conduct the detection circuit to generate a shutdown signal.

Furthermore, the cantilever comprises a hinge part and a swinging part, the hinge part is connected with the bracket through a rotating shaft, and the swinging part can be hung on the warp yarn.

Furthermore, the conducting rod is connected to a swing arm, the swing arm is hinged to the support, a driving surface which is in contact with the conducting rod and drives the conducting rod to avoid the cantilever is arranged on the swing part, the driving surface moves downwards to push the conducting rod away, and the conducting rod is reset to the falling motion track of the cantilever through gravity or an elastic piece;

or the conducting rod is connected to the swing arm, the swing arm is hinged to the support, the hinged part is provided with a driving surface which is contacted with the conducting rod and drives the conducting rod to avoid the cantilever, the driving surface moves upwards to push the conducting rod away, and the conducting rod is reset to the falling motion track of the cantilever through gravity or an elastic part;

or the conducting rod is connected to the bracket in a sliding manner, and an elastic part which enables the conducting rod to reset to the falling motion track of the cantilever is arranged between the conducting rod and the bracket;

or the swinging part is hinged with the hinged part, and swings relative to the hinged part after contacting the conductive rod to avoid the conductive rod.

Furthermore, the cantilever is directly hung on the warp yarn to be positioned and is electrically connected with the detection circuit through a lead;

alternatively, the cantilever is suspended from the warp and slidably connected to the support.

Furthermore, the detection assembly comprises a photoelectric detector and a detection circuit, the photoelectric detector is electrically connected to the detection circuit, the photoelectric detector is located on the side of the falling movement direction of the cantilever, and the cantilever shields the photoelectric detector in the falling movement process to enable the detection circuit to generate a stop signal.

Furthermore, one end of the cantilever is connected with the bracket through a rotating shaft, and the other end of the cantilever can be hung on the warp yarn;

alternatively, the cantilever is directly suspended from the warp;

Furthermore, the support includes the curb plate that is located the cantilever both sides and connects front bezel, the back plate of two curb plates, and in the direction of delivery of warp silk, the front bezel is located the upper reaches of cantilever, is equipped with the preceding hole that supplies the warp silk to pass on the front bezel, and the back plate is located the low reaches of cantilever, is equipped with the back hole that supplies the warp silk to pass on the back plate.

Furthermore, the cantilever is provided with a hook for conveniently hooking the warp or a through hole for the warp to pass through.

The invention also provides a circular weaving machine which comprises a main machine and a warp frame for conveying warp yarns to the main machine, wherein the automatic stopping device for balancing the tension of the warp yarns is arranged between the warp frame and the main machine.

After the technical scheme is adopted, the invention has the following advantages: the loose warp yarns can be pressed downwards by utilizing the gravity of the cantilever, certain tension of the warp yarns in the conveying process is kept, one warp yarn corresponds to one cantilever, and the tension of all the warp yarns can be balanced. And once the warp on the warp frame is broken or the warp is used up, the warp positioned on the upstream side of the cantilever loses tension, at the moment, the cantilever can rapidly move downwards under the action of gravity to drive the warp suspended on the cantilever to move downwards together, and under the traction of the falling motion of the cantilever, the warp positioned on the downstream side of the cantilever still can have certain tension and cannot completely lose the tensioning effect, the cantilever can trigger the detection assembly to generate a stop signal in the falling process, the control system can immediately control the host to stop, and then the cantilever can still continuously fall down to keep generating certain tension on the warp on the downstream side of the cantilever, so that the influence is caused, and the yarn tail generated by the disconnection or the yarn tail generated by the use up cannot be directly pulled into the host, so that the yarn tail can be effectively prevented from entering the host to wind the shuttle.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of an automatic stopping device for balancing the tension of warp yarns according to one embodiment of the present invention;

FIG. 2 is a schematic view showing the position of the cantilever during normal conveyance of a warp yarn according to one embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating the position of the cantilever contacting the conductive rod according to an embodiment of the present invention;

FIG. 4 is a schematic view of the position of the suspension arm at the end of the falling motion according to one embodiment of the present invention;

FIG. 5 is a schematic view showing the position of the cantilever in normal conveyance of a warp yarn in the second embodiment of the present invention;

FIG. 6 is a schematic view of the suspension arm at the end of the falling motion in accordance with the second embodiment of the present invention;

FIG. 7 is a schematic view showing the position of the cantilever in normal conveyance of a fifth warp yarn according to the embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating a position of a cantilever-shielding photodetector according to a fifth embodiment of the present invention;

fig. 9 is a schematic diagram of the position of the suspension arm at the end of the falling motion in the fifth embodiment of the present invention.

Detailed Description

The first embodiment is as follows:

the invention provides an automatic stop device for balancing the tension of a warp, which comprises a support 1 and a plurality of cantilevers 2, wherein a detection component for generating a stop signal is arranged on the support 1, the cantilevers 2 can be suspended on the warp 9 and tension the warp 9 under the action of gravity, one warp 9 corresponds to one cantilever 2, the cantilever 2 falls down after the corresponding warp 9 loses the tension (such as the warp is disconnected or runs out), the detection component is positioned between the starting point and the end point of the falling motion stroke of the cantilever 2, and the cantilever 2 triggers the detection component to generate the stop signal in the falling motion process.

In actual production, the warp yarns 9 have uneven thickness, the tension condition after being drawn in the conveying process is uneven, the loose warp yarns 9 can be pressed downwards by utilizing the gravity of the cantilever 2, the warp yarns 9 are kept to have certain tension in the conveying process, one warp yarn 9 corresponds to one cantilever 2, and the tension of all warp yarns 9 is balanced. And once the warp yarn 9 on the warp yarn 9 rack is disconnected or the warp yarn 9 is used up, the warp yarn 9 on the upstream side of the cantilever 2 loses tension, at the moment, the cantilever 2 moves downwards rapidly under the action of gravity to drive the warp yarn 9 suspended thereon to move downwards together, under the traction of the falling motion of the cantilever 2, the warp yarn 9 on the downstream side of the cantilever 2 still has certain tension and cannot lose the tensioning effect completely, the cantilever 2 triggers the detection component to generate a stop signal in the falling process, as shown in fig. 3, the control system can immediately control the host to stop, after that, the cantilever 2 will continue to drop, keeping a certain tension on the warp yarn 9 at the downstream side, as shown in fig. 4, under the influence of the above, the tail generated by disconnection or the tail generated by exhaustion will not be directly pulled into the main machine, so that the tail can be effectively prevented from entering the main machine to wrap the shuttle.

There are various ways for the detection component to identify the falling motion of the cantilever 2, for example, a way of generating an electrical signal by physical contact, a way of generating an electrical signal by optical signal change, a way of generating an electrical signal by a collision position switch, a way of generating an electrical signal by a magnetic force triggering a magnetic induction switch, and the like, and each way has respective characteristics. In this embodiment, adopt the mode that lower in production cost, the longer physical contact of life produced the signal of telecommunication, it is specifically that detecting component includes conducting rod 3 and detection circuit, cantilever 2 and conducting rod 3 electricity are connected in detection circuit, cantilever 2 contacts conducting rod 3 and makes detection circuit switch on and produce the shutdown signal in the in-process that falls, adopt this kind of mode, a plurality of cantilevers 2 only need a conducting rod 3 can, the part quantity is few, low in production cost, because the condition of warp 9 disconnection or use up often takes place, and only physical contact between cantilever 2 and the conducting rod 3, consequently life between them can be longer.

In the embodiment, the cantilever 2 is connected with the support 1 in a rotating way, specifically, the cantilever 2 comprises a hinge part 21 and a swinging part 22, the hinge part 21 is connected with the support 1 through a rotating shaft 11, the swinging part 22 can be hung on the warp yarn 9, and the swinging part 22 can fall down immediately after the warp yarn 9 is disconnected or used up.

In order to ensure that the conducting rod 3 can contact with the cantilever 2 in the falling motion, the conducting rod 3 needs to be arranged on the falling motion track of the cantilever 2, and meanwhile, the situation that the cantilever 2 is hindered by the conducting rod 3 after contacting the conducting rod 3 and is difficult to continue to move is avoided, so that the conducting rod 3 can be designed to be in a mode of avoiding the cantilever 2, specifically, the conducting rod 3 is connected to the swing arm 4, the swing arm 4 is hinged to the support 1, the swing part 22 is provided with the driving surface 23 which is in contact with the conducting rod 3 and drives the conducting rod 3 to avoid the cantilever 2, and the driving surface 23 moves downwards to push the conducting rod 3 open. In the present embodiment, the conductive rod 3 is automatically restored to the falling trajectory of the cantilever 2 by gravity, and besides, an elastic member such as a torsion spring or a spring may be added to restore the conductive rod 3.

It can be understood that, besides being rotatably connected with the bracket 1 through the rotating shaft 11, the cantilever 2 can also be directly hung on the warp yarn 9 for positioning and electrically connected with the detection circuit through a lead, after the warp yarn 9 is disconnected or used up, the cantilever 2 falls down integrally, and after contacting with the conducting rod 3, the cantilever 2 automatically avoids the conducting rod 3 to fall down continuously under the reaction force of the conducting rod 3. Considering that the cantilever 2 may slide relative to the warp yarn 9 after being suspended on the warp yarn 9, and may not contact the conductive rod 3 after falling, a structure for limiting the cantilever 2 may be provided on the bracket 1 to prevent the cantilever 2 from sliding relative to the warp yarn 9. If the cantilever 2 is required to be contacted with the conducting rod 3 in the process of falling integrally, the cantilever 2 and the bracket 1 can be designed to be in sliding connection, so that the falling motion track of the cantilever 2 is fixed.

In addition, the support 1 comprises side plates 12 positioned on two sides of the cantilever 2, a front plate 13 and a rear plate 14, wherein the front plate 13 is positioned on the upstream of the cantilever 2 in the conveying direction of the warp yarns, the front plate 13 is provided with a front hole 131 for the warp yarns 9 to pass through, the rear plate 14 is positioned on the downstream of the cantilever 2, the rear plate 14 is provided with a rear hole 141 for the warp yarns 9 to pass through, the front hole 131 is matched with the rear hole 141, the tensioning effect of the cantilever 2 on the warp yarns 9 can be better, particularly, after the warp yarns 9 are disconnected or used up, in the falling motion process of the cantilever 2, the front hole 131 and the rear hole 141 can generate friction resistance on the warp yarns 9, and the yarn tails are more difficult to be pulled into a host machine. The shaft 11 may be mounted on the side plate 12.

Since the warp yarn 9 is broken or used up frequently, in order to facilitate threading by workers, a hook 24 for hooking the warp yarn 9 or a through hole for the warp yarn 9 to pass through can be arranged on the cantilever 2.

In order to reduce the abrasion of the warp yarn 9, the front hole 131, the rear hole 141, the hook 24 or the perforation can be designed with circular chamfer.

The shape of the cantilever 2 is not limited as long as it can generate a sufficient gravitational force, and a rod-like structure, a plate-like structure, a block-like structure, or the like may be employed.

Example two:

as shown in fig. 5, the hinge portion 21 may be provided with a driving surface 23 which contacts the conductive rod 3 and drives the conductive rod 3 to escape from the cantilever 2, and the driving surface 23 may move upward to push the conductive rod 3 open. In this embodiment, the radius of rotation of the driving surface 23 is short, and the driving surface 23 is closer to the conductive rod 3, so that the conductive rod 3 can be contacted more quickly to generate a stop signal. In addition, the driving surface 23 is always in contact with the conductive rod 3 after contacting the conductive rod 3, as shown in fig. 6, and the identification is more reliable.

Other contents not described in this embodiment may refer to embodiment one.

Example three:

except that the conducting rod 3 swings to avoid the cantilever 2, the conducting rod 3 can be connected to the support 1 in a sliding mode to avoid the cantilever 2, and in order to enable the conducting rod 3 to reset to the falling motion track of the cantilever 2, elastic parts such as a reset spring and the like can be arranged between the conducting rod 3 and the support 1 to push the conducting rod 3 to reset.

Other contents not described in the present embodiment may refer to the above-described embodiments.

Example four:

instead of moving the conductive rod 3 to escape from the cantilever 2, the swing portion 22 may be hinged to the hinge portion 21, and the swing portion 22 may swing with respect to the hinge portion 21 to escape from the conductive rod 3 after contacting the conductive rod 3.

Example five:

in this embodiment, the detecting assembly includes a photo detector 5 and a detecting circuit, the photo detector 5 is electrically connected to the detecting circuit, as shown in fig. 7, the photo detector 5 is located at the side of the falling movement direction of the cantilever 2, and the cantilever 2 shields the photo detector 5 during the falling movement to make the detecting circuit generate a stop signal. The photodetector 5 generally comprises a transmitting end and a receiving end, which can be respectively arranged on the two side plates 12, the transmitting end is shielded by the cantilever 2 in the falling movement process, as shown in fig. 8, the receiving end cannot receive an optical signal, and the detection circuit can recognize that the warp yarn 9 is disconnected or used up. While the photodetector 5 does not block the movement of the cantilever 2, the cantilever 2 directly drops to move to the end position, as shown in fig. 9.

Adopt photoelectric detector 5, the requirement to the mounting form of cantilever 2 is lower, as long as ensure that cantilever 2 can shelter from photoelectric detector 5 in the falling motion process, therefore can be similar to the embodiment one by one, cantilever 2's one end is connected with support 1 through pivot 11, cantilever 2's the other end can hang on warp yarn 9. The cantilever 2 can also be directly hung on the warp yarn 9, and on the basis, the cantilever 2 can be connected with the bracket 1 in a sliding way in order to fix the falling motion track of the cantilever 2.

Example six:

the invention also provides a circular weaving machine which comprises a main machine and a warp yarn 9 frame for conveying the warp yarn 9 to the main machine, wherein any automatic stop device for balancing the tension of the warp yarn 9 is arranged between the warp yarn 9 frame and the main machine.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims

1. The utility model provides a balanced tensile automatic stop device of warp, includes support and a plurality of cantilever, is equipped with the determine module that is used for producing the shut down signal on the support, and the cantilever can hang on the warp and receive the action of gravity to make the warp tensioning, and a warp corresponds a cantilever, and the cantilever falls after its warp that corresponds loses tension, its characterized in that, determine module is located between the starting point and the terminal point of cantilever whereabouts motion stroke, and the cantilever triggers the determine module at the whereabouts motion in-process and produces the shut down signal.

2. The warp yarn tension balancing automatic stop device according to claim 1, wherein the detecting assembly comprises a conductive rod and a detecting circuit, the cantilever and the conductive rod are electrically connected to the detecting circuit, and the cantilever contacts the conductive rod during falling to conduct the detecting circuit to generate a stop signal.

3. The automatic stop device for balancing the tension of a warp yarn as claimed in claim 2, wherein the cantilever comprises a hinge part and a swinging part, the hinge part is connected with the bracket through a rotating shaft, and the swinging part can be hung on the warp yarn.

4. The automatic stop device for balancing the tension of the warp yarns according to claim 3, wherein the conductive rod is connected to a swing arm, the swing arm is hinged to the support, a driving surface which is in contact with the conductive rod and drives the conductive rod to avoid the cantilever is arranged on the swing part, the driving surface moves downwards to push the conductive rod away, and the conductive rod is reset to the falling motion track of the cantilever through gravity or an elastic part;

5. The automatic stop device for balancing the tension of the warp yarns as claimed in claim 2, wherein the cantilever is directly hung on the warp yarns to be positioned and electrically connected with the detection circuit through a lead;

6. The automatic stop device for balancing the tension of warp yarns according to claim 1, wherein the detection assembly comprises a photoelectric detector and a detection circuit, the photoelectric detector is electrically connected with the detection circuit, the photoelectric detector is positioned at the side of the falling movement direction of the cantilever, and the cantilever shields the photoelectric detector during the falling movement to enable the detection circuit to generate a stop signal.

7. The automatic stop device for balancing the tension of the warp yarn as claimed in claim 6, wherein one end of the cantilever is connected with the bracket through a rotating shaft, and the other end of the cantilever can be hung on the warp yarn;

alternatively, the cantilever is directly suspended from the warp;

8. The automatic stop device for balancing the tension of warp yarn as claimed in claim 1, wherein the bracket comprises side plates at both sides of the cantilever and a front plate and a rear plate connecting the two side plates, the front plate is located at the upstream of the cantilever in the conveying direction of warp yarn, the front plate is provided with a front hole for the warp yarn to pass through, the rear plate is located at the downstream of the cantilever, and the rear plate is provided with a rear hole for the warp yarn to pass through.

9. The automatic stop device for balancing the tension of the warp yarns according to claim 1, wherein the cantilever is provided with a hook for hooking the warp yarns conveniently or a through hole for the warp yarns to pass through.

10. A circular loom comprising a main machine and a warp frame for feeding warp yarns to the main machine, wherein the automatic stopping device for balancing the tension of the warp yarns as claimed in claim 1 is arranged between the warp frame and the main machine.