JPH02264038A - Cradle for preparing machine throughput in weaving machine - Google Patents

Abstract

PURPOSE:To properly carry out leasing before ending by providing a cradle for preparing machine throughput with mechanism to supply tension to a warp line between a warp beam supported on the cradle for preparing machine throughput and an end breakage detector of warp. CONSTITUTION:In a cradle for preparing machine throughput equipped with a warp beam 41, an end breakage detector 42 of warp through which each warp T1 drawn from the warp beam is passed, a heald frame 43, a reed 44 and warp pulling mechanisms 17-23 to collectively extract the warps T1, means 35-39 to supply tension to each warp T1 in a line of the warps T1 between the warp beam 41 and the end breakage detector 42 of warp are set. The means consist of a roller 36 having a napped tape stuck to the periphery face, a ratchet wheel 38 laid at the edge of the rollers, a ratchet 37 to be engaged with the ratchet wheel, a handle 39 and a bracket 35 to supports these members.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a warp beam and a warp beam that supports a member through which warp threads are inserted, and a machine tool that enables threading of the warp, which is one of the steps of preparation. The preparation receiver is related to the stand.

[Prior Art] In order to reduce the time required for the above-mentioned work, which will improve the operating efficiency of the loom, the warp beam is attached to the loom and the warp threads are passed through the weaving equipment. Generally, a work procedure is adopted in which the warp threads are inserted in advance through a dropper, a heald frame, and a reed of a warp cut detection device. As a means for that purpose, the applicant has proposed
No. 243352 discloses a preparation stand for the machine work. This receiver has a positional relationship that allows it to support the warp threads of the warp beam in approximately the same shape as the warp delivery shape of the loom. It is composed of a support body that removably supports the threading member, and a warp pulling-out mechanism that pulls out the warp threads of the warp beam all at once via the warp threading member on the support body.

The empty warp beam that has been removed from the loom and the warp threading member through which the warp threads have been passed are supported by the support body, and the leading ends of the warp threads that have been threaded through the reed are collectively connected to a warp pull-out mechanism. In this state, the warp threads are cut between the empty warp beam and the warp threading member, and the warp threads of the full warp beam are connected to the old warp threads on the warp threading member side. Then, by operating the warp pull-out mechanism, the warp threads are pulled out all at once from the full warp beam until the warp knots pass through the reed.This completes the warp thread threading, which is one of the preparation steps, and with this completion. The full warp beam and the warp passing member through which the warp threads are passed are stored in a state where the warp threads are supported in a warp delivery shape on the loom. Therefore, the connection between the warp thread threading work, which is one of the preparation steps, and storage are extremely smooth. Moreover, since the warp threading member that supports the warp threads in substantially the same shape as the warp delivery shape is similar to the mounting state on a loom, there are various advantages such as easy automation of mounting and removal using mechanical means.

[Problem to be solved by the invention]

With a receiver that has such various advantages, it is necessary to remove the twill of the yarn splicing section of the diameter series pulled out from the empty warp beam before joining the yarn on the table. An appropriate tension must be applied to the warp beam, and after applying an appropriate tension, the contact bar of the warp break detection device is lifted every other time, and every other dropper row is lifted, thereby causing the warp beam The twill removal is carried out by inserting a twilling rod into the warp opening formed at the yarn splicing site between the warp yarn breakage detection device and the warp yarn breakage detection device.

The warp threads pulled out from the empty warp beam loosen during the process of transferring the empty warp beam from the loom to the stand, and there are parts where the warp threads become entangled. Tension is applied to the warp by the warp drawing action of the warp drawing mechanism or the reversal of the empty warp beam, but since the relaxed state of the warp varies depending on its width direction, it is difficult to apply tension in this way. It is difficult to untangle the warp threads, so even if a warp opening is formed by lifting the dropper row, the separation of the upper and lower warp threads at the intertwined portion cannot be resolved, and there is a risk of failure in twill removal.

It is an object of the present invention to provide a loom preparation stand with the function of accurately removing twill before yarn splicing on the loom preparation stand, which has the various advantages described above.

[Means for Solving the Problems] For this purpose, in the present invention, the receiver applies tension to each warp thread between the warp beam supported on the support body constituting the stand and the warp cut detection device. A tension applying mechanism was installed for this purpose.

[Function] As a tension applying mechanism, for example, a raised tape is attached to the entire circumference of a reversible guide roller that guides the warp line between the warp beam and the warp cut detection device, or a raised tape is attached to the entire circumference of the guide roller that guides the warp line between the warp beam and the warp cut detection device, or There is something like a brush member that rotates in reverse. By reversing such a member, it is possible to apply tension to a single warp thread, thereby eliminating the entanglement of the warp threads by forming a warp opening, and reliably taking the twill.

[Example] Hereinafter, an example embodying the present invention will be described based on FIGS. 1 to 5.

A guide plate 15 is fixed to the upper surface of the pedestal 14a at the front of the support body 14, which consists of a pair of symmetrical side frames connected by connecting bars 10.11 and 12.13, and the upper surface of the guide plate 1.5 A guide groove 15a is recessed in the guide groove 15a, and mounting recesses 15b are provided at both front and rear ends of the guide groove 15a.
15c is formed. A hook 33 is rotatably attached near the rear end of the guide plate 15, and is restricted by a pin 34 between a solid line position and a chain line position in FIG.

A support bracket 16 is fixed on the upper front end of the pedestal 14a, and a mounting recess 1 is provided on the upper surface of the support bracket 16.
6a is formed.

A support bracket 17 is fixed to the rear surface of the upper end of both left and right branches 14b at the rear of the support body 14, and both brackets 1
A shaft 18 is rotatably supported between the shafts 7 and 7. - A ratchet 23 is rotatably supported by the support bracket 17, and is urged to rotate clockwise by a torsion spring (not shown). A winding roller 1 is mounted on the shaft 18.
A number of needles 20 are fixedly attached to the roller 19, and a large number of needles 20 are implanted in a row in the axial direction on the circumferential surface of the roller 19. A ratchet wheel 21 is fixed to one end of the shaft 18 so as to be able to engage with a ratchet 23, and a handle 22 is attached to the outside of the ratchet wheel 21.
are installed and fastened in parallel. This causes the handle 22 to move to the first position.
It can be rotated only in the direction of the arrow in the figure.

A holding frame 24 for the reed device is installed and supported between the two branches 14b in the vicinity of the mounting position of the support bracket 17, and directly above the holding frame 24 is a pair of left and right hanging bars 2 for hanging the heald frame.
5 is supported in a height-adjustable manner.

One of the left and right lower horizontal bars 14c that constitutes the support body 14
A lever 26 is rotatably supported on the lever 2.
A braking plate 27 for warp beam braking is rotatably supported at the tip of the warp beam 6. A guide post 28 is erected at the rear of the lower horizontal bar 14c corresponding to the rear end of the lever 26, and an adjustment handle 29 is threadedly supported on the guide post 28 so as to be movable up and down. A pair of upper and lower rings 30.31 are fixed to the middle part of the adjustment handle 29 at appropriate intervals, and a forked part at the rear end of the lever 26 extends between the rings 30.31. At the same time, the upper ring 3
A pressure spring 32 is interposed between 0 and the forked portion.

A support bracket 35 is fixed on the upper rear end of the pedestal 14a, and a back roller 36 is provided between both brackets 35.
is rotatably supported.

A ratchet 37 is rotatably supported by one of the support brackets 35, and a ratchet wheel 38 is fixed to one end of the back roller 36 so as to be able to engage with the ratchet 37, and a handle 39 is attached to the outside of the ratchet wheel 38. is fixed. The ratchet 37 can be switched between a standby position shown by a chain line in FIG. 1 and an operating position shown by a solid line, and is always kept in the standby position. A raised tape 140 is attached to the entire circumferential surface of the back roller 36, and this raised tape 40 generates a sliding resistance when the back roller 36 is in sliding contact with the circumferential surface of the back roller 36. Almost no sliding resistance occurs in the sliding action in the opposite direction.

When the warp threads of the warp beam on the loom are consumed, the loom device, for example as disclosed in Japanese Patent Application Laid-Open No. 63-99355, detects the warp cut of the empty warp beam on the loom by means of a warp cut detection device, which has passed its warp threads. The loom, together with the heald frame and reed, is carried to the preparation room, and the loom with the above-mentioned structure and the preparation support are transferred onto a table as shown in FIG. Both left and right bearing parts 41a of the empty warp beam 41 are attached to the mounting recess 15.
After being temporarily placed on the guide groove 15a, it is rolled onto the mounting recess 15c. Due to this rolling arrangement, the brake plate 27
is pressed against the flange portion of the empty warp beam 41 by the action of the pressing spring 32, and rotation of the empty warp beam 41 is prevented. By hooking the hook 33 to the warp beam shaft 41b, the floating of the empty warp beam 41 due to the action of the pressing spring 32 is prevented, and the empty warp beam 41
will not come off from the mounting recess 15c.

On the other hand, the warp cut detection device 42, which includes a large number of droppers 42b along the plurality of contact bars 42a, is mounted between the mounting recesses 16a of the left and right support brackets 16, and the plurality of heald frames 43 are A pair of left and right hanging bars 2
5, and the reed 44 is placed and held on the holding frame 24. A cloth W remains on the tip end side of the warp thread TI of the empty warp beam 41, and this cloth W is covered with the winding roller 1.
The needle 20 above 9 is inserted.

From this state, as shown in FIG. 3(a), the ratchet 37
is engaged with the ratchet wheel 38, and in this engaged state, the handle 39 is rotated to the left. This rotational operation causes the back roller 36 to rotate to the left, and the raised tape 40 on the circumferential surface of the back roller 36 slides against the warp T1 row in a direction opposite to the warp withdrawal direction. Due to this sliding action, the warp thread T1 is at the same level as the empty warp beam 4.
The warp yarns are pulled toward the first side, and the relaxed state of the warp T1 row is released. As a result, the warp thread T1 between the back roller 36 and the cloth W
The lengths of are almost the same.

When the handle 39 is further rotated to the left, the warp thread T1 row becomes tensed, and even tension is applied to each warp thread T1 at the weed level. The tension of one warp thread is 40 with raised tape.
It depends on the sliding resistance determined by the degree of raising of the warp and the type of warp T1, and by setting this sliding resistance appropriately, an appropriate tension is applied to the warp threads in the part where the warp threads become entangled when the warp rows are relaxed. be done.

After applying appropriate tension to each warp thread Tl by rotating the handle 39 an appropriate number of times, even if the handle 39 is released, the back roller 36 rotates to the right due to the meshing action between the ratchet 37 and the ratchet wheel 38. The warp threads T1 are maintained under appropriate tension. After this tension is applied, as shown in FIG. 3(b), every other contact parr 42a is lifted up, and the warp T1 row between the back roller 36 and the warp cut detection device 42 is separated into two groups, upper and lower. , that is, to form an opening. After inserting the twill rod 45 into this opening, lift the contact par 4
23 and lift another contact par 423,
Replace the upper and lower warps in Figure 3(b). And one more
After inserting the wooden twill stick 46 into the opening, contact par 4
2a is lowered, the warp T1 row is separated into two groups by the twill rods 45 and 46, as shown in FIG. 3(c). Since the warp thread T1 passes through the dropper 42b sequentially from one side,
Adjacent warp threads are separated vertically.

The twill rod 4 inserted into the warp T1 row as shown in Fig. 3(c)
If a wire such as a piano wire is connected to the twill bars 45 and 46 and pulled out from the twill bars 45 and 46, the piano wire will enter between the upper and lower warp rows, thereby removing the twill at the splicing portion of the diameter thread Ti rows.
5.46, it is necessary that the warp T1 row is reliably separated vertically during shedding formation before separating the warp T1 row into two groups. That is, for example, if a warp that should be on the lower side gets entangled with an upper warp and is pulled up, there is a possibility that the intertwined warp threads are swapped with each other in the width direction of the warp T1 row, and the twill bars 45, 46 This shuffling cannot be resolved by twill removal.

However, in this embodiment, since an appropriate tension is applied to each warp thread T1, the intertwined warp threads are reliably separated vertically by forming openings, and the warp threads are separated from each other by the warp thread T1.
They are not replaced in the width direction of one column. Therefore, the necessary twill removal can be carried out accurately before yarn splicing.

Further, there is no need to rotate the heavy warp beam 41 to apply tension to the warp threads T, and the operability is very good.

After carrying out twilling and removing the twill bars 45 and 46, a tape is pasted in the width direction of the warp Ti row between the back roller 36 and the empty warp beam 41, and the bank roller 3
6 and the tape along the tape.

And, the mechanism is ready, and the receiver is the empty warp beam 41 from the stand.
is removed and a full warp beam 47 is installed instead as shown in Fig. 4, and the warp threads T2 and diameter threads T1 of the full warp beam 47 are tied one by one using a splicing device.At this time, the tip side of the warp threads T2 are also attached with tape, and both warp threads T
1. The yarn splicing operation is performed by clamping and supporting the attached portion of T2 by appropriate means. Due to the accuracy of the above-mentioned twill removal, the cut portions of the diameter yarn T1 are clearly separated vertically from one another, and the yarn splicing is performed satisfactorily.

After the yarn splicing is completed, the tape is removed and the adjusting handle 29 is screwed to the position shown in chain lines in FIG. 4 to loosen the pressure of the brake plate 27 against the flange portion of the full warp beam 47. When the handle 22 is rotated with the ratchet 37 and the ratchet wheel 38 disengaged, the full warp beam 47 rotates while receiving the braking action of the brake plate 27, and both the new and old warp threads T2. T, knot t
is passed through the warp cut detection device 42, the heald frame 43 and the reed 44. As shown in FIG. 4, after the knot t has passed through the reed 44, the threading operation is completed by cutting and removing a portion of the knot, and the threading operation can be stored as is until needed.

The present invention is, of course, not limited to the above-mentioned embodiments. For example, a brush member that can be rotationally driven in the warp row direction by a motor or the like is arranged to be switched between an operating position and a retracted position on the warp row path. Examples are also possible.

[Effects of the Invention] As described in detail above, the present invention provides a method for connecting a warp beam between a warp beam supported on a support body constituting a stand and a warp cut detection device in order to remove twill for yarn splicing. Since tension is applied to each thread in the series, the upper and lower warp threads are reliably separated by forming an opening in the warp series between the warp beam and the warp cut detection device, and this allows for the twill removal necessary for thread splicing. It has the excellent effect of being able to accurately perform the following steps.

[Brief explanation of drawings]

The drawings show an embodiment embodying the present invention, and FIG. 1 is a side view showing the empty warp beam and the warp threading member through which the warp threads have been passed, mounted on a stand, and FIG. 2 is a main part. Perspective view,
Figures 3 (a) to (c) are enlarged side sectional views of the main parts to explain the twilling work, Figure 4 is a side view showing a state where a full warp beam is installed instead of an empty warp beam, and Figure 5 FIG. 2 is a side view showing a state in which threading is completed.

Claims (1)

[Claims] 1. A warp beam having a positional relationship that can support the warp threads of the warp beam in substantially the same shape as the warp delivery shape of the loom, a warp cut detection device inserted through the warp threads of the warp beam,
In the machine preparation cradle, which is constituted by a support body that removably supports the heald frame and the reed, and a warp pull-out mechanism that pulls out the warp threads of the warp beam all at once via the heddle frame and the reed on the support body, A cradle for preparing a weaving machine in a loom, which is equipped with a tension applying mechanism for applying tension to each row of warp threads between a warp beam supported on a support body and a warp cut detection device.