JP3429596B2 - Device for preventing entanglement of warp in process - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing entanglement of warp yarns in the in-process operation of warp yarns. The present invention relates to an improvement in a technique for winding a warp onto a winding beam so that the drawn warp does not become entangled even when the warp is drawn from the winding beam. [0002] When setting a warp on a machine such as a warping machine or a loom, it is necessary for an operator to draw the warp from the winding beam in a sheet state. [0003] However, when a warp is drawn from such a winding beam, the drawn warp sheet is loosened. Particularly in the case of a strongly twisted warp, an adjacent warp is used. Are easily entangled with each other. When the warps are entangled in this way, it is extremely difficult to perform a work in which the warp is passed through the reed. Further, if the warp is entangled in such a state, the yarn breaks easily after the machine is started. [0004] It is an object of the present invention to prevent entanglement of a drawn-out warp from a take-up beam during a warp weaving operation in a weaving or preparatory step, thereby facilitating the weaving operation and reducing warp breakage. According to the present invention, therefore, in the present invention, the warp sheet is wound upstream of the warp sheet on the warping machine, more specifically, the traveling direction of the warp sheet from the wind beam. And a speed control system connected to the drive motor of the warper, the heater being wound on the winding beam just before the end of winding. In addition to exerting a heating action on the warp sheet, the gist is that the speed control system drives the warper at a lower speed than during normal operation during a period in which the heater exerts a heating action on the warp sheet. is there. The twist of the warp just before the end of winding is set by heating the heater. FIG. 1 to FIG. 3 show an embodiment of an entanglement prevention apparatus according to the present invention, in which a heater is mounted on a movable carriage, and one heater is shared by each warper. As much as possible, the number of required heaters in the factory was reduced. The side facing the take-up beam B of the apparatus in FIG. 1 will be referred to as “forward”. In FIG. 2, the right side in the figure is the inside (the side where the take-up beam B is located). In FIG. 3, the right side is the front and the upper side is the inside. Note that the apparatus of the present invention is provided with a pair of left and right configurations shown in FIGS. 2 and 3, but only those on the left side when viewed from the front are shown in these figures. The structure of the right-hand side is symmetric with respect to the left-right plane. A pair of right and left columns 3 are provided upright on the cart 1 with casters, and rails 5 extending vertically are formed on the inner and outer surfaces of each column 3 respectively. Also, the upper ends of the left and right columns 1 are connected by tension 6. A rectangular parallelepiped frame 11 is provided so as to surround the column 3, and a pair of upper and lower rollers 7 provided on the frame 11 sandwich the outer rail 5. A pair of upper and lower rollers 9 sandwich the inner rail 5. That is, the frame body 11 is attached to the column 3 via these rollers 7 and 9 and the rail 5 so as to be vertically movable. Therefore, the configuration can be applied to warping machines of different models having different winding beam height positions. A support plate 1 extending forward is provided on a frame 11.
A fluid pressure cylinder 15 (most commonly, an air cylinder) is fixed inside the support plate 13 so as to face forward and downward. Fluid pressure cylinder 15
A heater 17 is attached to the tip of the plunger. In this embodiment, since one heater 17 is used, the heater 17 extends at least over the entire width of the take-up beam B to be processed (that is, the distance between the left and right columns 3 is set to such length). Is set to.) A nut bracket 19 is fixed to the support plate 13 so as to protrude inward, and a screw shaft 21 extending vertically is screwed to the nut bracket 19. This screw shaft 21 has a bevel gear mechanism 23 at the upper end via a bevel gear mechanism 23.
It is connected to a rotating shaft 25 extending inside. The rotary shaft 25 is also connected to a screw shaft attached to a right support (not shown). The rotation shaft 25 is connected to the handle 27 at the outer end of the tension member 6. Therefore, by manually turning the handle 27,
The frame 11 and thus the heater 17 can be moved up and down as appropriate in accordance with the height position of the winding beam B to be processed. A hook 2 is provided at the front end of the bogie 1 so as to be swingable, and is engaged with a pin b extending from a frame of the warper to lock the bogie 1 and the winding beam B. can do. By the way, the temperature of the heater 17 varies depending on the type and degree of twist of the warp to be treated, and it is required that a certain heating effect is exerted on a specific winding beam (specific type and degree of twist). Is done. Therefore, it is desirable to provide the apparatus of the present invention with a temperature control system as shown in FIG. That is, the heater 17 is provided with a detector 31 for detecting its surface temperature, and is electrically connected to the temperature controller 33. This temperature controller 3
A temperature setter 35 is connected to 3. Prior to the start of the operation, the operator sets the surface of the heater to a temperature suitable for the winding beam to be processed by the temperature setting device 35. Thereafter, as the operation proceeds, the control system operates to maintain the surface temperature of the heater 17 at a set value. The set value of the surface temperature depends on the yarn type, twist degree, and winding speed during heating, but is desirably set within a range of 150 ° C to 250 ° C. In order to ensure the heating effect of the heater 17, it is desirable to reduce the moving speed of the warp at the timing of heating, that is, to temporarily operate the warper at a low speed. To respond to this request, a speed control system as shown in FIG. 7 may be added to the warper. That is, the encoder EN is connected to the operation controller 41. The encoder EN detects the amount of rotation of the warp guide roller 14 of the warper and outputs a timing signal indicating the degree of progress of the operation. The operation controller 41 is connected to the speed controller 43, and the speed controller 43 is connected to the drive motor M of the warper. A normal operation speed (high speed) setting device 45 and a twisting operation speed (low speed) setting device 47 are connected to the speed controller 49 via a switch 49. This switch 49 is connected to the operation controller 41
It is turned on and off by a signal from. The operation controller 41 counts the timing signal from the encoder EN, and outputs a stop signal when the count reaches a predetermined count (ie, immediately before the end of winding of the warp) to stop the warper. After that, the operation controller 4
When the button provided in 1 is pressed, a switching signal is output, and the speed controller 43 is connected to one of the setting devices 45 and 47 by switching. Next, an outline of a work in progress in a warper to which the apparatus of the present invention is applied will be described. In this case, it is assumed that both the temperature control system shown in FIG. 6 and the operation speed control system shown in FIG. 7 are attached to the apparatus. First, the cart 1 is set on a warper. That is, in FIG. 1, the hook 2 on the carriage 1 is engaged with the pin b on the warper. In this state, the heater 17 is still off and is in the retracted position shown by the solid line in FIG. At the timing immediately before the end of winding, the operation controller 41 of FIG. 7, which counts the timing signal from the encoder EN, outputs a stop signal to the speed controller 43, and the warper temporarily stops operation. I do. An operator turns on the heater 17 to raise the temperature. The heater 17 is maintained at the set temperature by the operation of the temperature control system shown in FIG. When the heater 17 reaches the set temperature, the operator advances the heater 17 by the fluid pressure cylinder 5 and contacts the warp sheet as shown by a chain line in FIG. At this time, the bogie 1 receives a reaction force from the warp sheet via the heater 17, but since the hook 2 is connected to the pin b, the bogie 1 does not retreat. At the same time that the heater 17 is brought into contact with the warp sheet,
Alternatively, shortly before that, a switching signal is output from the operation controller 41 by an operator pressing a button,
The switch 49 is switched, and the warper is started at the low speed set by the setting device 47 to wind up the remaining warp. By counting the timing signal from the encoder EN, the operation controller 41 outputs a stop signal again after winding is completed, and the warper is temporarily stopped. In this state, the worker retracts the heater 17 to the position shown by the solid line in FIG. Thereafter, the hook 2 and the pin b are disengaged from each other, and the bogie 1 is detached from the warper. Thereafter, the warp is cut immediately before the winding beam B, and the winding beam is detached from the warper. Transport. In the above embodiment,
Turn on the heater 17 and raise the temperature
Are performed by an operator, but these may be automated by outputting a command signal from a warper. That is, the temperature control system on the side of the truck 1 and the driving device of the fluid pressure cylinder 5 are connected to the operation controller 41 of the warper via the cable. Then, when the warper stops immediately before the winding is completed, the operator presses a button of the operation controller 41 to output an operation command to the heater 17 to turn it on. Thereafter, after a lapse of a predetermined time (time required for the heater 17 to rise to the set value), a drive command is automatically output to the driving device of the hydraulic cylinder 5 and the warping machine is operated at a low speed. You may. By the way, the present invention is mainly applied to a warper, and one example thereof is a rough warper for winding a warp from a creel into a warper beam.
In addition, a warping machine that winds multiple warper beams into a room beam, and divides warp yarns from a creel into multiple sections, winds them into a warping drum, and rewinds the warp yarns from the warping drum into a room beam There are partial warping machines. As the heater, an electric heater or a steam heater is used. In the case of an electric heater, since it is a contact type, it is usually retracted as described above during winding. Further, in the present invention, a heater is provided over the entire width of the warp sheet.
As the mode, there are a case where only one heater having a length larger than the width of the warp sheet is arranged, and a case where a plurality of heaters having a length smaller than the width of the warp sheet are arranged in parallel in the width direction of the warp sheet. is there. Depending on the type of warping machine, the heater may be mounted on each warping machine instead of being movable instead of being mounted on the warping machine. FIG. 4 shows an example in which this embodiment is applied to a warp warper. The warp yarn is drawn out from the warper beam 51 and is wound around the room beam 55 via the zigzag comb 57 and the guide roller group 53. The device of the present invention is provided between the guide roller on the most downstream side and the room beam 55 so as to contact the warp sheet. The heater 17 is attached to the rack 52. The pinion 54 meshing with this is rotationally driven by the motor M. Thereby, at the time of normal winding, the heater 17 is retracted from the warp, and immediately before the winding is completed, the heater 17 is heated, and then the motor M is driven to advance the heater 17 to make contact with the warp. it can. FIG. 5 shows an example in which the present invention is applied to a warp warper. The warp yarn is drawn out from the creel 61, and is wound around the warper beam 67 via the guide roller group 63 and the zigzag comb 65. The device of the present invention is provided with the most downstream guide roller and the zigzag comb 6.
5 so as to be in contact with the warp sheet. The heater 17 is attached to a plunger of the fluid pressure cylinder 15. In these cases, it is desirable to use a control system as shown in FIG. 8 to automatically perform the work without the intervention of an operator. This control system is basically a combination of the temperature control system shown in FIG. 6 and the operation speed control system shown in FIG. The difference is that first, a signal is exchanged between the operation controller 41 and the temperature controller 33. Further, an output signal of the operation controller 41 is input to a moving mechanism 71 for moving the heater 17 forward and backward. An outline of the work in progress in the case of such a fully automatic system will be described. At the timing immediately before the end of the winding, the operation controller 41 outputs a stop signal to the speed controller 43 and outputs a heating command signal to the temperature controller 33, and in response to this, the temperature controller 33 starts heating. Outputs a heating completion signal to the operation controller 41 when the heater 17 reaches the set temperature. The operation controller 41 outputs an advance command signal to the moving mechanism 71 and outputs a low-speed operation command signal to the speed controller 43. When the guide roller rotates by a predetermined amount, the operation controller 41 outputs a stop signal to the speed controller 43, outputs a reverse command signal to the moving mechanism 71, and outputs a heating stop command signal to the temperature controller 33. Output. In the above case, if the temperature of the heater is automatically raised at a timing even before the end of winding, the operation stoppage time of the warper can be further shortened. Alternatively, if the warping machine is switched from the high-speed operation directly to the low-speed operation without stopping the warping machine immediately before the winding is completed, and the heater is advanced, there is no need to stop the warping machine at all. In the above example, the heater is arranged only on one side of the warp sheet. However, a higher twisting effect can be obtained in a shorter time than that provided on both sides. Further, in the case of a non-contact type steam heater or the like, it is not necessary to make contact with the warp sheet, and it may be set so as to keep a certain distance from the warp sheet. Since the warp yarn is twisted immediately before the winding operation is completed, the warp sheet is wound from the winding beam so that the warp yarn is mounted on a machine such as a warper or a loom in the next step. Even if the warps are slackened when drawn out, the warps adjacent to each other will not be entangled with each other. This facilitates the work in progress and reduces warp breaks after the machine is started. More specifically, when the warp is applied to a warp warping machine, the warp yarns are entangled with each other even when the warps are pulled out when the winding beam (warper beam) is set on the warping machine in the next process. No warp can be accurately and easily passed through the zigzag comb. Further, since there is no entanglement of the warp, the occurrence of yarn breakage after starting the warper is reduced. Further, when the present invention is applied to a warping machine or a partial warping machine, when the winding beam (room beam) is set in the next step, the warps are not entangled with each other even if the warp is drawn out. Can be easily passed through the heald. Warp breakage after the loom is started can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an embodiment of the device of the present invention. FIG. 2 is a front view showing a main part of the same. FIG. 3 is a partial cross-sectional plan view showing a main part of the same. FIG. 4 is a side view showing an example in which the apparatus of the present invention is applied to a warp warper. FIG. 5 is a side view showing an example in which the device of the present invention is applied to a warper. FIG. 6 is a block diagram showing an example of a heater surface temperature control system attached to the apparatus of the present invention. FIG. 7 is a block diagram showing an example of a warper operating speed control system attached to the apparatus of the present invention. FIG. 8 is a block diagram showing an example of a control system for a fully automatic work in progress using the apparatus of the present invention. [Description of Signs] 1 cart 3 support 11 frame 15 fluid pressure cylinder 17 heater 21 screw shaft 27 handle B winding beam 31 surface temperature detector 33 temperature controller 35 temperature setter 41 operation controller 43 speed controller 45, 47 Speed setting device 71 Vertical movement mechanism

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D02H 5/00 D02H 5/02

Claims (1)

(57) [Claim 1] A heater arranged over the entire width of a warp sheet upstream of a winding beam for winding a warp sheet on a warper, and a heater for the warper. A speed control system connected to a drive motor, wherein the heater exerts a heating action on the warp sheet wound around the winding beam immediately before the winding is completed, and the speed control system applies a heat to the warp sheet by the heater. An entanglement prevention device for warp in-process work, wherein a warping machine is driven at a lower speed than during normal operation during a period in which a heating effect is exerted.