JPH072629Y2 - A cradle for the preparation of machinery in a loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention supports a warp beam and a member through which a warp thread is inserted, and prepares a machine thread that allows 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 threads to the weaving machine side, before installing a new warp beam, consider the time reduction of the work that leads to improvement of 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 means for that purpose, the applicant of the present invention has disclosed in JP-A-63-24.
Japanese Patent No. 3352 discloses a cradle for preparing a mechanism. 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 main body that removably bridges and supports the member, and a warp drawing mechanism that collectively draws the warp beams of the warp beam through the warp member on the support main body.

The empty warp beam removed from the loom and the warp member through which the warp is passed are supported by the support body, and the woven fabric pieces at the tip of the warp row passed through the reed are collectively connected to the warp drawing 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 members through which the warp threads are passed are stored in a state in which the warp threads are supported in the warp discharge 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, since the warp threading member that supports the warp threads in a shape substantially similar to the warp thread delivery shape is close to the mounted state on the loom,
There are various advantages such that the mounting and dismounting by mechanical means can be easily automated.

[Problems to be Solved by the Invention] When pulling a knot of old and new warps up to the front side of the reed on a pedestal having various advantages as described above, a large number of needles on a winding roller constituting a warp pulling mechanism are used. The take-up roller is rotated while being hooked on the woven fabric piece at the end of the warp row, but by setting the hooking position of the needle on the woven piece at the boundary between the woven piece and the warp row, And uniform tension can be applied. However, there is a risk that the warp will ride on the needle tip as the warp row is wound around the winding roller, and if the warp rides on the needle tip, the warp will be cut.

A presser bar can be fitted along the axial direction of the take-up roller to avoid cutting the warp yarn by the needle, and a woven fabric piece at the end of the warp row is provided between the presser bar and the take-up roller. It is also conceivable to bend and hold. However, even if the warp thread is pulled out by this bending hold, uniform tension cannot be applied to the entire warp thread row, and the knot corresponding to the relaxed part of the warp thread row is easily caught in the dropper or heddle of the warp cutting detection device. The yarn breaks easily.

SUMMARY OF THE INVENTION The present invention is intended to provide a cradle with a function capable of smoothly passing a warp thread through a wake-up preparation cradle having various advantages described above.

[Means for Solving the Problems] Therefore, according to the present invention, a warp beam supported on a support body that constitutes a cradle is pierced along the boundary between the woven fabric piece and the warp row at the tip of the warp row. The warp withdrawing mechanism is composed of a large number of take-up needles and a take-up roller that supports the plurality of take-up needles in a rotatable manner, and the periphery of the take-up needle is covered by a protective surface.

[Operation] It is possible to apply uniform tension to the warp row by hooking the take-up needle on the boundary between the warp row and the woven fabric piece on the front side thereof. By covering the circumference of the take-up needle that applies such a tension with a protective surface, the warp does not ride on the needle tip of the take-up needle, and the warp breakage caused by the warp riding on the needle tip is eliminated.

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

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

A holding frame 17 for placing a reed is erected and supported between the left and right columns 14b forming the support body 14, and a pair of left and right retaining bars 18 for suspending a heddle frame is provided directly above the holding frame 17. The position is adjustable.

A lever 19 is rotatably supported on one of the left and right lower horizontal bars 14c constituting the support body 14, and a warp beam braking plate 20 is rotatably supported on the tip of the lever 19. There is. Lower horizontal bar corresponding to the rear end of lever 19
A guide pillar 21 is erected at the rear of 14c, and the guide pillar 2
An adjustment handle 22 is supported on 1 so as to be vertically screwed together. A pair of upper and lower rings is provided in the middle of the adjustment handle 22.
23 and 24 are fixed at appropriate intervals, and lever 19
A forked portion at the rear end portion extends between the rings 23 and 24, and a pressing spring 25 is interposed between the upper ring 23 and the forked portion.

A support bracket 26 is fixed to the upper front end of the pedestal 14a, and a back roller 27 is rotatably supported between the brackets 26.

Support brackets 28 are fixed to the rear surfaces of the upper ends of the left and right columns 14b, and a shaft 29 is rotatably supported between the brackets 28. A ratchet 30 is rotatably supported on one of the support brackets 28, and is urged to rotate clockwise by a torsion spring (not shown). Axis 29
A take-up roller 31 is fixed to the shaft, and a ratchet wheel 32 is fixed to one end of the shaft 29 so as to be able to mesh with the ratchet 30. A handle 35 is fixedly installed on the outer side of the ratchet wheel 32, and the handle 35 can be rotated only in the direction of the arrow in FIG. 1 by the meshing action of the ratchet mechanism.

A holding groove 31a is provided in the circumferential surface of the take-up roller 31 along the axial direction, and the holding slit 31a is formed on the bottom surface of the holding groove 31a.
1b is recessed along the longitudinal direction of the holding groove 31a. A nip bar 36 can be fitted in the holding groove 31a with a margin in the width direction, and a large number of take-up needles 37 are planted in a row along the longitudinal direction on the bottom surface of the nip bar 36. With the nip bar 36 fitted in the holding groove 31a, a large number of take-up needles 37 are inserted into the accommodation slit 31b. Split rings 42 are detachably fitted to both ends of the winding roller 31.

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. The left and right bearings 38a of the empty warp beam 38 are temporarily placed on the mounting recess 15b, and then rolled onto the mounting recess 15c along the guide groove 15a. Due to this rolling arrangement, the braking plate 20 is pressed against the flange portion of the empty warp beam 38 by the action of the pressing spring 25, and the rotation of the empty warp beam 38 is blocked. Then, by hooking the hook 33 on the warp beam shaft 38b, the empty warp beam 38 is prevented from rising due to the action of the pressing spring 25, and the empty warp beam 38 does not come off from the mounting recess 15c.

On the other hand, a warp cutting detection device 39 incorporating a large number of droppers (not shown) is installed between the mounting recesses 16a of the left and right support brackets 16 and a plurality of heald frames 40 are a pair of left and right hook bars. The reed 41 is hung and suspended at 18, and the reed 41 is placed and held on the holding frame 17.

A woven cloth piece W is left on the tip side of the warp beam T ₁ row of the empty warp beam 38, and the take-up needle 37 is pierced and hooked at the boundary between the woven cloth piece W and the warp thread T ₁ row. Is fitted into the holding groove 31a on the circumferential surface of the winding roller 31. When the nip bar 36 is fitted into the holding groove 31a, the take-up roller 3
This is performed with the split rings 42 at both ends of 1 removed, and the multiple take-up needles 37 are inserted into the accommodation slits 31b. After fitting the nip bar 36 into the holding groove 31a, the split rings 42 are fitted into both ends of the winding roller 31, and the winding roller 31
The connection of the woven fabric piece W to is completed.

When the handle 35 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 38 to the reed 41 becomes substantially the same as the warp 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 38 is removed from the cradle for machine preparation, and the full warp beam 43 is mounted instead as shown in FIG. 3, and the warp T ₂ and the old warp of the full warp beam 43 are mounted.
And T ₁ one by one connecting the yarn splicing device. At this time, the front end side of the warp yarn T ₂ is also adhered with a tape, and the adhering portions of both warp yarns T ₁ and T ₂ are sandwiched and supported by an appropriate means for yarn splicing work.

After the yarn splicing is completed, the tape is removed, and the adjusting handle 22 is screwed to the position shown by the chain line in FIG.
The pressure contact state of the brake plate 20 to the flange portion of 43 is loosened.
Then, if the handle 35 is rotated, a full warp beam is produced.
43 rotates while receiving the braking action of the braking plate 20,
The knot t of T ₂ and T ₁ passes through the dropper insertion hole of the warp cutting detection device 39, the heddle insertion hole of the heddle frame 40, and the reed 41.

By the turning operation of the handle 35, a large number of take-up needles 37 hook the ends of the woven fabric piece W at the boundary between the woven fabric piece W and the warp thread T ₁ row, circulate around the shaft 29, and pull the warp thread T ₁ . . Due to this pulling action, the nip bar 36 in the holding groove 31a is slightly inclined as shown in FIG. 2 while receiving the action of preventing the split ring 42 from coming off, and the warp thread T ₁ row is bent at the bottom angle of the nip bar 36.
The end of the woven fabric piece W and the 37 rows of take-up needles are parallel,
Uniform tension across the warp T _1, T ₂ rows by the action and the bending action of the warps T ₁ row hooking large number of take-off needle 37 relative to the end of the fabric piece W is given. Therefore, a part of the warp threads does not relax, the knot t does not get caught in the dropper and the insertion hole of the heddle due to the relaxation of the warp threads, and the warp thread is smoothly drawn.

When the knot t passes through the reed 41 as shown in FIG. 4 by the rotation of the take-up roller 31, the warp T ₁ row is wound around the take-up roller 31 several times, but the take-up needle 37 is The warp thread T ₁ is protected from contact with the needle tip of the take-up needle 37 because it is covered by the formation surface of the accommodation slit 31b. That is, the formation surface of the accommodation slit 31b serves as a protective surface and covers the 37 rows of the take-up needles. Therefore, the warp thread T ₁ does not ride on the needle tip of the take-up needle 37, and the warp thread T ₁ does not
Not cut off by 37.

After the knot t has passed through the reed 41, the tip of the warp thread T ₂ row is cut to remove the knot t, and the preparation for the mechanical work on the pedestal is completed, and the full warp beam 43 and its warp thread T ₂ are completed. It is also possible to mount a threaded warp member on the loom and connect the warp thread T ₂ row to the woven fabric cut end on the loom side. However, the method of directly connecting the warp threads T ₂ to the woven fabric cut end on the loom side is very troublesome. Therefore, a piece of woven fabric is fastened to the tip of the warp T ₂ row, and this piece of woven fabric is connected to the take-up portion between the surface roller and the press roller, which constitutes the winding device of the loom, to start the machine. Becomes very easy. Therefore, if the two woven fabric pieces are fastened to the warp row so as to sandwich the warp row from above and below, there is an advantage that the entanglement of the warp threads can be prevented. For example, while winding both woven fabric pieces around the winding roller 31. It suffices to join them sequentially from the tip side with a surface fastener. Even in such a case, the two pieces of woven fabric are wound up evenly by the take-up roller 31, so that the warp is evenly tensioned by the hooking action of the take-up needle 37, and a part of the warp is There is no such thing as relaxation.

Of course, the present invention is not limited to the above-mentioned embodiment. For example, as shown in FIG. 5, a plurality of take-up needles 37 are planted in a row on the peripheral surface of the take-up roller 31 as in the prior art. All the take-up needles 37 may be covered with the cover 44 that can be fitted to the take-up roller 31.
That is, the take-up needle row 37 is accommodated in the holding groove 44a of the cover 44, and the warp thread T ₁ row is wound along the outer surface of the cover 44. In this embodiment as well, as in the previous embodiment, avoiding warp cutting,
An effect such as uniform tension application can be obtained.

Further, as shown in FIG. 6, a housing slit 31c is provided on the peripheral surface of the take-up roller 31, and the take-up needles 37 are planted in one row on the inner surface of the cover 45 which can be fitted to the take-up roller 31. However, an embodiment in which the cover 45 is fitted to the take-up roller 31 so that the take-up needle 37 is inserted into the accommodation slit 31c is also possible. Also in this embodiment, the same effects as those of the embodiment of FIG. 5 can be obtained.

[Advantages of the Invention] As described in detail above, the present invention stabs the warp beam supported on the support body forming the cradle along the boundary between the woven fabric piece and the warp row at the tip of the warp row. Since a large number of take-up needles on the take-up roller are covered with a protective surface, it is possible to apply uniform tension to the warp row while avoiding cutting of the warp due to contact with the take-up needles.
This has an excellent effect that good warp threading can be performed.

[Brief description of drawings]

1 to 4 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 side view showing a threading completion state, and FIGS. 5 and 6 are perspective views of main parts showing another example. The support body 14, the winding roller 31 and the take-up needle 37 that form the warp drawing mechanism, and the accommodation slit that forms the protective surface.
31b, 31c and protective groove 44a, warp yarns T ₁ , T ₂ , woven fabric piece W.

Claims (1)

[Scope of utility model registration request] 1. A warp beam, a warp cutting detection device in which the warp of the same beam is inserted, a warp cutting frame, and a warp frame and a reed which have a positional relationship capable of supporting the warp of the warp beam in a shape substantially the same as the shape of the warp fed out in a loom A support body for detachably supporting a member, and a warp drawing mechanism for collectively drawing out warp threads of a warp beam via a warp member on the support body. By a large number of take-up needles pierced along the boundary between the warp beam and the woven fabric piece at the end of the warp beam of the supported warp beam, and a take-up roller that rotatably supports the take-up needles. A weaving stand for a loom, which constitutes the warp drawing mechanism and covers the periphery of the take-up needle with a protective surface.