JPH0364553A - Apparatus for preventing uneven weaving in nonfeeding of rush in rush mat or fancy mat loom - Google Patents

Abstract

PURPOSE:To prevent uneven weaving from occurring by temporarily stopping intermittent motion of front and back driving rolls with a ratchet when nonfeeding of rush fed from rush dividers into a warp yarn shed is sensed and simultaneously stopping guide of a rush-mat or fancy mat during no-load operation of a loom. CONSTITUTION:When nonfeeding of rush fed from rush dividers provided on both sides of a loom into a warp yarn shed is sensed with a sensing mechanism, feeding operation of the rush is stopped to perform no-load operation of the loom. An electromagnet (20a) or (20b) is simultaneously excited to disengage a feeding pawl (12a) or return pawl (12b) from a ratchet 10 to temporarily stop the intermittent motion of front and back driving rolls (3a) and (3b) with the ratchet 10. Thereby, guide of a rush mat 29 or fancy mat threaded through a free rotating roll 4 is stopped. When the stop of feeding the rush is released and weaving operation is restarted, the aforementioned electromagnet (20a) or (20b) is demagnetized to engage the feeding pawl (12a) or return pawl (12b) with the ratchet 10.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a device for preventing uneven weaving of tatami facings and flower logs during weaving in tatami facing looms and flower bud looms.

[Prior art]

Conventionally, in looms for making tatami mats and flower loaves, the rushes on both sides of the loom are supported by the vessel and the catcher, and in the case of tatami looms, one of the rushes is fed from the vessel into the opening of the warp by two uncolored rushes.
After feeding the wood, the other rush feeds two uncolored rushes from the container into the opening of the warp threads, and weaves the tatami surface by interlocking the osage rods and jijime rods that are engaged with the warp threads.
In the Hualong loom, one rush is fed into the warp opening by alternating uncolored and colored rushes from the container, and after that, the other rush is fed into the warp opening with uncolored rush and colored rush from the container. The flower logs are woven while feeding a total of 4 trees including the rushes, and the woven tatami covers and flower logs are passed around the feed roll at the lower front of the loom, and then sandwiched between the 4 wood holding rolls installed at the back of the loom. Two of the four nipping feed rolls
The wood is fed intermittently by an intermittent feed mechanism (ratchet gear) that is linked to the weaving operation of the loom, and tension is applied to the warp threads during weaving to prevent uneven weaving.

[Problems to be solved by the invention]

However, if the rushes that are being fed into the openings of the warp threads fail during weaving of the tatami face or flower bouquet using a tatami face loom or a flower loom, the rushes may fall out of the tatami face or flower bouquet. The product value of the product decreases. Therefore, in recent years, we have installed a rush detection mechanism in the reed rod that lowers the grass from the vessel into the opening of the warp threads to the ground tightening position, and also stops the rush from flying from the vessel into the opening of the warp thread. A shielding plate or a stop mechanism that stops the rush container for a certain period of time is installed to stop the feeding of the several rushes that follow the unexploded rushes (for example, in a tatami surface loom, the rushes on the left and right are fed in from the container for a total of 4 rushes). An object of the present invention is to provide a device for preventing uneven weaving in the case of rush failure in a tatami facing loom or a flower loom, which can prevent the occurrence of uneven weaving due to stopping the feeding of rush grass.

[Means for solving the problem] The configuration of the invention described in item 9 to achieve the above object is as follows. That is, the present invention has a ratchet mechanism for intermittently rotating the front and rear drive rolls by pivotally supporting the front and rear drive rolls, idle rolls, and presser rolls on the back of the tatami mat or flower M loom. In a guiding device that is installed on one of the bearings and feeds the tatami mats and flower logs, which are sequentially woven at the front of the loom, by passing them around the front and rear drive rolls, idle rolls, presser rolls, etc. in synchronization with the weaving operation. A stop mechanism for temporarily stopping the intermittent rotation of the front and rear drive rolls by the ratchet wheel mechanism is provided in the ratchet wheel mechanism, and a rush failure detection mechanism and a rook stop mechanism are provided to detect the rush fed from the container. In the case of rush failure in Tatami-omote Mi machines and bouquet looms, which are characterized by interlocking, a bag to prevent uneven weaving is used as one unit, and if one tree fails to explode, the following three rushes are stopped, and in Hualo looms, one of the rushes is interlocked. One unit consists of four rushes sent from the vessel, and if one fails, the following three rushes are stopped. ), the loom's reeling rod and ground tightening rod are run dry, and then the feeding of rushes is restarted. However, when the feeding of rushes is stopped and the loom is run idle, the woven tatami mats and flower logs are forcibly guided by the nipping feed rolls at the rear of the loom, and the ground tightening rods are used to tighten the ground. Even though there was some room for upward movement during operation, the thickness became sparse due to idle operation due to unexploded tatami mats and flower rushes during weaving, which had the disadvantage of being prone to uneven weaving. [Object of the Invention] The present invention is designed to stop the feed operation of tatami face and flower locus by the nipping feed rolls at the rear of the tatami face loom and flower loaf loom during idle operation of weaving due to the generation of unexploited rushes. These are several bushes that followed the unexploited rushes.

【Example】

Hereinafter, the present invention will be explained in more detail with reference to embodiment figures. A pair of left and right bearings 2 is protruded from both sides of the back side of the machine frame 1 of the tatami facing loom or Hualong loom at an appropriate height, and the front and rear drive rolls 3a and 3b are pivotally supported on the bearings 2. 3a, 3b
An idling roll 4 is mounted on the upper surface, an arm rod 5 is pivotally attached to a pair of left and right bearings 2 and protrudes rearward, and a presser roll 6 is provided on the arm rod 5 to come into contact with the rear driving roll 3a. A spring 7 is pivotally supported and tensioned between the tip of the arm rod 5 and the lower part of the machine frame 1, and one of the bearings 2
A rotating shaft 8 is pivotally supported on the lower surface of the rotating shaft 8, and a driving gear 9a inside the rotating shaft 8 and an interlocking gear 9b of the front and rear driving rolls 3a and 3b,
9c, the rook 10 is fixed to the outer end of the rotating shaft 8, and the upper end of the drive lever 11 is loosely attached, and the feed pawl 12a that engages with the rook 10 is pivotally attached to the drive lever 11. A shaft piece 14 is provided to protrude outward from the upper end of the arm rod 13 which is provided upwardly from the bearing 2, and the detent pawl 12 of the ratchet wheel 10 is attached to the shaft piece 14.
1], and connects the drive lever 11 with a swinging rod 16 that engages with a rotating crank 15 on the side of the machine frame 1 and swings, and a rod 17.
The front and rear driving rolls 3 are connected by intermittent rotation of the ratchet wheel 10.
In the guiding device 18, which clamps and feeds the tatami surface, flower buds, etc. woven by interlocking the rollers 3a and 3b, the front and rear drive rolls 3a and 3b, the idle roll 4, the presser roll 6, etc., a U-shaped rod is attached to the outer surface of the tip of the feed claw 12a. 19a, and connect the operating iron piece 21a of the first electromagnet 20a attached to the drive lever 11 and the U-shaped rod 19a with a coil spring 22a, or fix the U-shaped rod 19b on the upper surface of the detent claw 12b, The second electromagnet 20b is fixed to the mounting plate 23 protruding from the shaft piece 14, and the operating iron piece 21b and the U-shaped rod 19b are connected to the coil spring 22b.
The grass that you want to install on both sides of the front of the machine frame 1 is fed into the opening of the warp thread 25 from the container 24. A drive lever 11 attached to a rush rotation shaft 8, which is activated for a certain period of time when the rush detection mechanism detects rush rush failure, reciprocates back and forth to feed the feed pawl 12.
The interlocking gear 9b meshes with the drive gear 98 of the rotating shaft 8 which rotates the ratchet wheel 10 intermittently by a, and the ratchet wheel 10 is fixed.
, 9c, the front and rear drive rolls 3a and 3b are intermittently rotated to guide the tatami facing 29 and the kagon to the rear, thereby giving tension to the warp threads 25. When the rushes on both sides of the loom are fed into the warp threads 25 from the vessel 24 and fail to explode, and the grass failure detection mechanism installed in the reed rod 26 detects the failure of the rushes, the mechanism to prevent rushes from falling out is detected. For example, in the case of a tatami facing loom, two rushes on the left and right sides are fed from the container, for a total of four rushes, so four rushes are considered as one unit, and the three rushes following the unexploited rushes are fed into the container. The feeding of the warp threads 25 into the opening is stopped by a stop mechanism attached to the machine, and the weaving operation is continued to cause the m machine to run idly.
At the same time, the first electromagnet 20 of the guiding device 18 is
a or the second electromagnet 20b is excited to disengage the feed pawl 12a or the detent pawl 12b from the ratchet wheel 10, and the feed pawl 12
A is designed to stop the rotation of the ratchet wheel 10 by exciting the first electromagnet 20a or the second electromagnet 20b in conjunction with the rush feeding stop mechanism of +-1 24, which is removed from the ratchet wheel 10. . In the figure, 27 is a tatami mat facing loom, 28 is a thread roll, 29 is a tatami facing, 30 is a feed roll, and 31 is a manual handle. In the tatami facing loom 27 and the flower bud loom, the thread roll 28 at the upper rear part winds a large number of wound warp threads 25 toward the front of the loom, and the woven tatami facing 29 is transferred to the guide device from the feed roll 30 at the lower front part of the loom. 18, and the guiding device 18 is driven in synchronization with the weaving operation at the front of the loom. Tatami surface 29 and flower buds are front drive roll 3
It is applied to the idle roll 4 from the lower surface of a, and then applied to the presser roll 6 from the lower surface of the rear drive roll 3b. At the same time, due to the swinging of the swinging rod 16 due to the rotation of the rotating crank 15, the connecting rod 1
7 reciprocates back and forth, and when engaged, the ratchet wheel 10 does not rotate intermittently even if the drive lever 11 is activated, and when the return stop pawl 12b is disengaged from the ratchet wheel 10, the rook 1o is only reciprocated and reversed by the action of the pushing force of the feed claw 12a and the reverse tension of the tatami surface, and in both cases, the guidance of the tatami surface 29 and flower buds by each roller is stopped, and the feeding of one unit of rush is stopped. When it is released and normal weaving operation is resumed, the excitation of the first electromagnet 20a or the second electromagnet 20b is demagnetized, and the feed pawl 12a or the detent pawl 1 is demagnetized.
2b engages with the ratchet wheel 10, and the tatami surface is intermittently moved freely. Therefore, by simultaneously stopping the guidance of the tatami facing and flower buds that were woven during idle operation of the loom due to rush failure, it is possible to prevent uneven weaving from occurring on the tatami facing and flower buds. It is also conceivable that the yarn roll 28 is stopped outside of the stop of the guiding device 18 to prevent uneven weaving, which would produce the above-mentioned remarkable effects.

【Effect of the invention】

The present invention has the above-mentioned configuration, and can prevent uneven weaving from occurring on the tatami-omote and hanasho by simultaneously stopping the guidance of the tatami-omote and hanasho, which were woven during idle operation of the loom due to the misfire of rushes. It is something.

[Brief explanation of drawings]

Fig. 1 is a partially enlarged rear view of a tatami front loom showing an uneven weaving prevention mechanism according to an embodiment of the present invention, Fig. 2 is a view taken along the line A-A, and Fig. 3 is a side view of the tatami front loom. be. 1: Machine frame 2: Bearings 3a, 3b: Front and rear drive rolls 4: Idle roll 6: Presser roll 8: Rotating shaft 10: Rabies 11, drive lever 12a: Feed claw 12b = return stop claw 16- Swinging rod

Claims (1)

[Claims] 1. On the back of the tatami front loom or Hualong loom, the front and rear drive rolls, idle rolls, and presser rolls are pivotally supported, and the ratchet mechanism for intermittent rotation of the front and rear drive rolls is mounted on one of the bearings that pivotally supports the front and rear drive rolls. A ratchet wheel is installed at the front part of the loom to wrap the tatami mats and flower logs, which are sequentially woven at the front of the loom, around front and rear drive rolls, idle rolls, presser rolls, etc., and nip and feed them in synchronization with the weaving operation. The ratchet wheel mechanism is provided with a stop mechanism for temporarily stopping the intermittent rotation of the front and rear drive rolls caused by the mechanism, and the ratchet wheel stop mechanism is linked with a rush failure detection mechanism that detects rushes fed from a rush divider. A device for preventing uneven weaving in the case of rush failure in a tatami facing loom or a flower loom.