JP2503642B2 - Cradle for looms preparation on loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention supports a warp beam and a member having a warp threaded therethrough, and is used for machine preparation for enabling warp threading which is one step of machine preparation. It is about the cradle.

[Prior Art] When mounting a warp beam on a loom and passing the warp thread to the weaving machine side, before installing a new warp beam in consideration of shortening the time of the work leading to improvement in the operating efficiency of the loom. A work procedure in which the warp is previously inserted through the dropper, the heddle frame, and the reed of the warp cutting detection device is generally adopted. As a means for this, the applicant of the present application has disclosed in Japanese Patent Laid-Open No. 63-
Japanese Unexamined Patent Publication No. 243352 discloses a cradle for preparing a device.
This pedestal has a warp beam, a warp cutting detection device in which the warp of the same beam is inserted, a warp frame and a reed, which have a positional relationship capable of supporting the warp of the warp beam in a shape substantially similar to the shape of the warp sent out in the loom. It is composed of a support body which detachably hangs and supports the member, and a warp drawing mechanism which collectively draws the warp beams of the warp beam through the warp member on the support body.

The empty warp beam removed from the loom and the warp thread through which the warp thread is passed are supported by the support body, and the tip side of the warp thread passed through the reed is collectively connected to the warp withdrawing mechanism. In this state, the warp yarn is cut between the empty warp beam and the warp member, and the warp yarn of the full warp beam is connected to the old warp yarn on the warp member side. Then, by operating the warp drawing mechanism, the warp is collectively drawn from the full warp beam until the knot of the warp passes through the reed. As a result, the warp threading, which is one step of machine preparation, is completed, and with this completion, the full warp beam and the warp member through which the warp thread is passed are stored in a state in which the warp thread is supported in the warp delivery shape on the loom. It Therefore, the coordination between the warp threading operation and the storage, which is one step of the machine preparation, is extremely smooth.
Moreover, the supporting shape of the warp threads in this storage mode is substantially the same as the shape of the warp threads on the loom where the warp threads are not entangled with each other, and rubbing between the warp threads and the warp threads, which causes damage to the warp threads, does not occur. In addition, since the warp member supporting the warp in a shape substantially similar to the warp delivery shape is close to the mounted state in the loom, there are various advantages that the mounting and dismounting by mechanical means can be automated easily.

[Problems to be Solved by the Invention] However, when the warp threads are entangled with each other when the warp threads are drawn through the healds of the plurality of heddle frames, this entanglement causes a large insertion resistance, and when the insertion resistance is too large, Leads to thread breakage. In particular, since the knots of the old and new warps are aligned in a straight line in the width direction of the warp row, the knots are likely to be entangled with each other and it is more difficult to insert the knots.

It is an object of the present invention to provide a function for smoothly threading a heddle frame to a heddle in a machine setting preparation cradle having the above-mentioned various advantages.

[Means for Solving the Problem] Therefore, in the present invention, a part of the plurality of heddle frames and the rest thereof are vertically arranged directly below the plurality of heddle frames supported on the support body forming the pedestal. An opening / closing mechanism for relative displacement was installed.

[Operation] A plurality of heddle frames are divided into two groups that are vertically displaced by the opening / closing mechanism, and a warp string passing through the plurality of heddle frames forms an opening. When the warp pulling mechanism pulls the warp through the warp member under this open state, the warp row is divided into upper and lower parts in front of the heddle frame. Therefore, even when the warps are entangled with each other, the entanglement is gradually eliminated, and the insertion resistance is reduced. Further, in the open state, the knots aligned in a straight line in the warp row direction are separated into upper and lower parts, the density of the knot part having the highest warp density is reduced, and it becomes easier to pass through the heddle.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS.

Supporting body 14 consisting of a pair of left and right symmetrical side frames connected by connecting bars 10, 11, 12, 13
A guide plate 15 is fixed to the upper surface, a guide groove 15a is provided on the upper surface of the guide plate 15, and mounting recesses 15b and 15c are formed at both front and rear ends of the guide groove 15a. . Information board 1
A hook 33 is rotatably attached near the rear end of the member 5, and is restricted by a pin 34 between the solid line position and the chain line position in FIG. A support bracket 16 is fixed to the upper end surface of the pedestal 14a, and a mounting recess is provided on the upper surface of the support bracket 16.
16a is formed.

A support bracket 17 is fixed to the rear surfaces of the upper ends of the left and right columns 14b at the rear of the support body 14, and a shaft 18 is rotatably supported between the brackets 17. A ratchet 23 is rotatably supported by one of the support brackets 17, and is urged clockwise by a torsion spring (not shown). A winding roller 19 is fixedly attached to the shaft 18, and a large number of needles 20 are planted in a row in the axial direction on the peripheral surface of the roller 19. A ratchet wheel 21 is fixed to one end of the shaft 18 so as to be able to mesh with the ratchet 23,
A handle 22 is attached and fixed to the outside thereof in parallel. Thus, the handle 22 can be turned only in the direction of the arrow in FIG.

A lever 26 is rotatably supported on one of the left and right lower horizontal bars 14c constituting the support body 14, and a brake plate 27 is rotatably supported on the tip of the lever 26. lever
A guide post 28 is erected on the rear part of the lower horizontal bar 14c corresponding to the rear end part of the 26, and the guide post 28 has an adjusting handle.
29 is screwed and supported so as to be vertically movable. A pair of upper and lower rings 30 and 31 are fixed to the middle portion of the adjusting handle 29 at appropriate intervals, and a forked portion at the rear end portion of the lever 26 extends between the rings 30 and 31. With the upper ring 30
A pressing spring 32 is interposed between the and the forked portion.

A bearing bar 35 is installed between the middle portions of the pair of left and right columns 14b, and a support bracket 36 is hung and supported at the middle portion of the pair of left and right upper horizontal bars 14d forming the support body 14. A bearing bar 37 is installed between the lower ends of the upper horizontal bars 14d. Support shafts 38, 39 are rotatably installed between the left and right ends of both bearing bars 35, 37, and an operating lever 40 is provided at the protruding end of one support shaft 38 protruding from the bearing bar 35. An operation knob 41 is slidably attached to the tip of the operation lever 40 while being fixed.
A transmission lever 42 is fixed to the other support shaft 39 protruding from the bearing bar 35. The tip ends of both levers 40 and 42 are connected by a transmission rod 43, and
A parallel four-node ring mechanism is constituted by the 0, 42 and the transmission rod 43. Therefore, when the operation lever 40 is rotated by operating the operation knob 41, both support shafts 38 and 39 are rotated in the same direction by the same amount.

A plurality of eccentric cams 44A and 44B are fixed in parallel on the support shaft 38 between both bearing bars 35 and 37, and an odd-numbered eccentric cam group 44A and an even-numbered eccentric cam group 44B are arranged from the front side. They are arranged with an angle difference of 180 °. Similar eccentric cams 45A and 45B are fixed in parallel on the other support shaft 39, and the odd-numbered eccentric cams 44A group and the even-numbered eccentric cams 44B group from the front side are arranged with an angular difference of 180 °. ing. When the operating lever 40 is in the hanging state, the eccentric cams 44A, 44A
Both levers 40, 42 with respect to the support shafts 38, 39 so that the uppermost parts of the cam surfaces of B and the eccentric cams 45A, 45B are at the same height position.
Also, the mounting angle positional relationship of the eccentric cams 44A, 44B, 45A, 45B is set.

Bearing bar 35 corresponding to the rotation trajectory of the shaft 41a of the operation knob 41
A pair of fitting holes 35a is transparently provided in this area, and a shaft 41a can be fitted into both fitting holes 35a.

Both upper horizontal bars between post 14b and support bracket 36 1
A guide member 64 is provided upright on the portion 4d, and a plurality of guide grooves 46a are formed on the facing surface side. Guide groove 46a
Is the same as the number of eccentric cams 44A, 44B on one support shaft 38, and the guide groove 46a and the eccentric cams 44A, 44B are aligned in the front-rear direction.

Then, in the vicinity of the mounting position of the support bracket 17,
A holding frame 24 for placing a reed is erected and supported between 14b.

A support bracket 64 is fixed to the upper rear end of the pedestal 14a, and a back roller 65 is rotatably supported between the brackets 64. When the warp of the warp beam on the loom is consumed, the empty warp beam on the loom is passed through the warp by a device such as disclosed in JP-A-63-99355. It is carried together with the heddle frame and the reed to the mechanism preparation room, and is transferred onto the mechanism preparation cradle having the above-mentioned structure as shown in FIG. Left and right bearings 47 of the empty warp beam 47
After a is temporarily placed on the mounting recess 15b, it is rolled onto the mounting recess 15c along the guide groove 15a. Due to this rolling arrangement, the braking plate 27 is pressed against the flange portion of the empty warp beam 47 by the action of the pressing spring 32, and the rotation of the empty warp beam 47 is blocked. Then, by hooking the hook 33 on the warp beam shaft 47b, the empty warp beam 47 is prevented from being lifted up by the action of the pressing spring 32, and the empty warp beam 47 is attached to the mounting recess 15.
It does not come off from c.

On the other hand, the warp yarn cutting detection device 48 having a large number of droppers 48a built therein is mounted between the mounting recesses 16a of the left and right support brackets 16 in a suspended manner. Further, the plurality of heald frames 49A, 49B are inserted into the guide grooves 46a of the pair of left and right guide members 46, moved downward, and placed and supported on the cam surfaces of the eccentric cams 44A, 44B, 45A, 45B.
Since the uppermost portions of the cam surfaces of the eccentric cams 44A, 44B, 45A, 45B are at the same height, the warp thread T ₁ inserted through the heald frames 49A, 49B is in the closed state. Further, the reed 50 is placed and held on the holding frame 24. The cloth W is left on the front end side of the warp yarn T ₁ of the empty warp beam 47, and the needle 20 on the winding roller 19 is stuck into the cloth W.

When the handle 22 is rotated from this state, the warp thread T ₁ is pulled and tensioned. As a result, the route of the warp yarn T ₁ from the empty warp beam 47 to the reed 50 becomes substantially the same as the warp yarn route on the loom. After the warp tension, a tape is attached to the warp T ₁ row in the width direction, and the attached portion is cut along the tape. Then, the empty warp beam 47 is removed from the machine preparation cradle and the full warp beam 51 is mounted instead as shown in FIG. 3, and one warp T ₂ and one old warp T ₁ of the full warp beam 51 are mounted. Each is tied with a yarn splicing device. At this time, the warp T ₂
The tip side of the is also attached with tape, and both warp threads T ₁ , T ₂
The yarn splicing work is carried out while the attached portion of the is adhered and supported by an appropriate means.

After the yarn splicing is completed, the tape is removed, and the adjusting handle 29 is screwed to, for example, the position indicated by the chain line in FIG. 1 to loosen the pressure contact action of the braking plate 27 with the flange portion of the full warp beam 51. When the handle 22 is rotated, the full-wap beam 51 is rotated while receiving the braking action of the braking plate 27, and the knot t between the old and new warps T ₂ and T ₁ is pulled through the warp cutting detection device 48. After the knot t has passed through the warp cutting detection device 48, the turning operation of the handle 22 is temporarily stopped, and the operating lever 40 is operated to rotate so that the shaft 41a of the operating knob 41 is fitted to the left and right as shown in FIG. Fit into either one of the fitting holes 35a. This makes support shaft 3
As for the upper eccentric cams 44A and 44B, the uppermost part of one eccentric cam 44A group moves downward, and the uppermost part of the other eccentric cam 44B group moves upward. As shown in FIG. While the odd numbered heddle frame 49A is moved downward from the opening position,
The even-numbered heald frame 49B is moved upward from the closed position.

The heddle frame 49A group and the heddle frame 49B group are vertically displaced relative to each other, whereby the warp row is opened. The warp threads T ₁ are passed through the insertion holes of the heddle frame 49A and the heddle frame 49B in order from the end, and therefore the adjacent warp threads are vertically separated from each other. When the turning operation of the handle 22 is restarted under this open state, the warp row is gradually separated into upper and lower parts and the heddle frames 49A and 49B are pulled through, and when the warp row is in the closed state, the warp row is substantially widthwise. The knots t aligned on a straight line are divided into two groups along the upper and lower warp rows. Therefore, even when the warps are entangled with each other, the entanglement is gradually eliminated, and the heddle frame 49A,
The entanglement disappears before 49B. As a result, the warp threads are smoothly drawn through the heddle frames 49A, 49B. Moreover, since the entanglement is gradually eliminated, the warp tension does not rise sharply and warp breakage does not occur.

Further, when the warp string is in the closed state, the yarn density is high in the vicinity of the knot t which is aligned on the substantially straight line in the width direction, and as it is, it is difficult to pass through the heddle frame. However, in the open state in which the adjacent knots t are divided into upper and lower parts, the yarn density at the insertion portions of the heald frames 49A and 49B is greatly reduced. Therefore, the knot t also smoothly passes through the heald frames 49A and 49B.

Such smooth threading of the warp threads can also increase the threading speed, and can improve the efficiency of machine preparation preparation work without thread breakage. Further, the structure in which the warp yarn rows are opened facilitates the twilling work before yarn splicing, and moreover makes it easy to find the entanglement between the upper and lower warp yarn rows. further,
Even when the knot t passes through the dropper 48a of the warp cutting detection device 48 or the reed 50, the knot t is separated into upper and lower parts, which allows the passage resistance of the knot t even at the passing member other than the heald frames 49A and 49B. Is reduced, and the efficiency of the work preparation work on the cradle is further improved.

As shown in FIG. 5, after the knot t has been inserted through the reed 50, the operating lever 40 is returned to the hanging position to return the heald frames 49A and 49B to the closed position, and the knot t is cut off to perform the threading operation. Complete.

The present invention is of course not limited to the above-mentioned embodiment, and the embodiments shown in FIGS. 6 and 7 are also possible.

In the embodiment shown in FIG. 6, the guide groove 52a of the guide member 52 that guides the heald frames 49A and 49B is a dead end at the lower portion, and the heald frames 49A and 49B are supported by the guide member 52. A support shaft 53 is rotatably arranged in the front-rear direction just below the left and right ends of the heald frames 49A and 49B supported by the guide member 52, and a plurality of eccentric cams 54 are provided on the support shafts 53. Is fastened just below the heddle frame 49A. A worm wheel 55 is fixed to the front end of one of the support shafts 53, and a chain 56 is hung between the support shafts 53 via a sprocket 25, and the worm wheel 55 meshes with the worm wheel 55. The eccentric cam 54 is rotated by rotating 57. As a result, one of the heald frames 49A and 49B is the heald frame 49A.
Only the group is arranged to move upward, and the warp rows are opened by the relative displacement between the heddle frame 49A and the heddle frame 49B. With this opening, the same effect as the above can be obtained.

In the embodiment shown in FIG. 7, the guide member 5 into which the heald frame 49B is inserted
The guide groove 58b of 8 penetrates downward, and the guide groove 58a into which the heald frame 49A is inserted is a dead end. Support bars 59 are vertically movably arranged just below the left and right ends of the heddle frames 49A and 49B, and support projections 59a are provided on the support bar 59 uprightly below the heald frames 49B. That is, the heald frame 49A is supported by the guide member 58, and the heald frame 49B is supported by the support bar 5.
Backed by 9.

A rack portion 59b is provided on the support bar 59, and a pinion 60 is meshed with the rack portion 59b. Pinion 60
A worm wheel 61 is juxtaposed on the support shaft, and when a worm 62 meshing with the worm wheel 61 is rotated by a handle 63, the support bar 59 moves up and down. The support bar 59 is always disposed in the uppermost moving position, and the heald frame 49A is at the same height position as the remaining heald frames 49B in the uppermost moving position. Therefore, when the support bar 59 is moved downward by the turning operation of the handle 63, the heald frame 49A is moved downward and the warp is opened. Of course, a configuration in which the heddle frame 49A is moved upward is also possible.

[Effects of the Invention] As described in detail above, according to the present invention, a part of a plurality of heddle frames supported on a support body that constitutes a pedestal and the rest thereof are vertically displaced relative to each other, and thus the heddle frame is provided. Since the warp thread is passed through, the warp row is gradually separated vertically and passes through the heddle frame, which reduces the passage resistance when passing through the heddle frame and allows the warp thread to be smoothly passed through. It has an excellent effect.

[Brief description of drawings]

1 to 5 show an embodiment embodying the present invention.
The figure is a side view showing a state in which an empty warp beam and a warp member through which the warp is passed are mounted on a pedestal, FIG. 2 is a perspective view of an essential part, and FIG. 3 is a full warp beam instead of the empty warp beam. FIG. 4 is a side view showing a mounted state, FIG. 4 is a perspective view of an essential part showing an opened state, and FIG. 5 is a side view showing a threading completion state.
6 and 7 are perspective views of main parts showing another example. A support body 14, an operating lever 40 that constitutes an opening / closing mechanism, eccentric cams 44A, 44B, 45A, 45B, and warp yarns T ₁ , T ₂ .

Claims (1)

(57) [Claims] 1. At least a warp beam, and a plurality of heddle frames and reeds in which the warp of the same beam has been inserted can be removed in a positional relationship capable of supporting the warp of the warp beam in a shape substantially the same as the shape of sending the warp in a loom. A supporting body for supporting, and a warp drawing mechanism for collectively drawing out warp threads of a warp beam through a heddle frame and a reed on the supporting body, and a plurality of devices supported on the supporting body in a machine preparation preparation cradle. A machine-preparation cradle for a loom, in which an opening / closing mechanism for vertically displacing a part of the plurality of heald frames and the rest thereof is directly below the one heald frame.