JPH061114Y2 - Ear towel sewing device and ear sewing guide mechanism - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a long strip formed by connecting a plurality of towel cloths each having a length of one sheet to each other through so-called castors. The present invention relates to an ear sewing device for continuously sewing left and right ears (side edges) of a towel raw fabric, and more specifically, it is an extremely suitable improvement for being incorporated and used in this type of device. Stock box and ear sewing mechanism.

[Prior art]

Conventionally, in this kind of towel raw fabric ear sewing device, a long towel raw fabric that has been wound in a roll shape or folded and has already been subjected to a required exposing step is provided on both left and right sides thereof. For the purpose of enabling continuous and smooth feeding to the sewing machine that performs the sewing of the ears, a stock box is provided as a pre-process device that is placed in front of the sewing machine equipped with the sewing machine, and In order to improve the space-saving property, the length of the stock box is increased by an appropriate original fabric feeding means such as a roll mechanism on the upper end side of the base (rear) end of the stock box which is configured by a tilting table that descends forward. An unrolled towel roll is intermittently fed so that it is retained on the surface of the tilting table in a corrugated state having an appropriate density when viewed from the side.

Incidentally, the means for intermittently supplying the stock towel cloth to the stock box is conventionally controlled by a limit switch sensor or the like projecting at a substantially intermediate position in the longitudinal direction of the tilt table. It is supposed to be done.

That is, the towel roll that remains on the surface of the tilt table is
For feeding to the sewing machine, it gradually decreases as it is fed out, and when its weight reaches a certain preset value, that is detected by a limit switch sensor or the like, for example, from the amount of bending, and the towel is The raw fabric is fed into the stock box, and thus, when the towel raw fabric is sufficiently replenished and the retention amount reaches a preset maximum value, this is detected by the limit switch sensor etc. Can be stopped.

Further, the conventionally known ear sewing guide means assists the action of the spiral body provided in order to fold the fed towel roll ears into three just before the sewing needle of the sewing machine provided in the sewing machine. , For the purpose of cooperating, a disc that rolls in contact with the ear of the towel roll that runs so as to be positioned in front of the spiral body with the edge edge of the towel roll in an upright position I was forced to.

[Problems to be solved by the device]

However, in the above-mentioned conventional ear stock sewing machine for a towel raw material, a sensor for controlling the operation of the means for supplying the towel raw material into the stock box so that the towel raw material can be retained in a corrugated state having a predetermined density. Is provided almost at the center in the lengthwise direction of the tilting table that constitutes the stock box, so that the towel raw material that is intermittently supplied is closely spaced in the front-back direction of the waveform. ,
Even if they are piled up and accumulated on the lower part of the tilt table, the above-mentioned sensor cannot detect the stagnant state of the original fabric, so that the corrugated state continues to the upper part of the tilt table. It was often the case that the towel cloth was delivered until the end.

Therefore, as a result, the towel cloths are more closely overlapped on the lower part of the inclined table, the feeding for smooth feeding to the sewing machine is hindered, and the sewing work of the ear is interrupted. There was a serious inconvenience, a problem occurred.

Furthermore, since the conventional sewing guide means and mechanism do not have the function and function of erecting the edge edges of the towel cloth, the feed speed of the sewing machine feeds the towel cloth to the sewing machine. Although it is synchronized with the feed speed of the feed roller of the towel roll provided to do so, if there is a slight speed difference due to variations in the weave of the towel roll itself, slippage, etc. There is also an inconvenience and a problem that an excessive load is applied to the feed dog and the feed dog is damaged early.

The present invention has been made in view of the above-mentioned problems that are unavoidable in a conventional towel cloth ear sewing device, that is, various disadvantages, drawbacks, and inconveniences. In order to allow the stock towel to be retained in the stock box to be fed to the sewing machine as smoothly as possible from the stock box, a suitable amount is provided below the inclined table corresponding to the feeding part of the stock towel in the stock box. In order to make it possible to retain in a corrugated state with a density of, the accuracy of supply and retention of the towel roll is improved, the edge of the towel roll is always erected, and the towel roll is fed. Effectively prevents the feed dog of the sewing machine from being overloaded due to fluctuations in the feed speed, and at the same time, it is incorporated, for example, in the known cross guider. With a proper meandering correcting means, the meandering movement (if any) of the towel raw material that could not be corrected as desired is sufficiently absorbed, and in a state of order, the towel is wound up to the position of the three-fold spiral body or sewing machine. An object of the present invention is to provide an ear sewing machine for a towel cloth and an ear sewing guide mechanism or device configured to feed the cloth.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the device for sewing a raw towel towel according to the present invention is formed from the upper end of the tilting table to the upper part of the tilting table by a supply means provided on the upstream side of the tilting table. It is supplied intermittently toward the box, and while staying in the stock box in a state where it is pulled up so that the shape seen from the side has a corrugated shape, along the slope of the stock box, to the lower half of the tilt table. A continuous long towel raw material that descends toward the sewing machine is sequentially fed out from the lower half portion of the tilting table, and is fed to the sewing machine via the towel ear sewing guide mechanism. In the ear sewing machine of the towel original fabric, which is sewn by the sewing machine in the sewing machine and then folded and sent out, the lower half part of the inclined table is formed in a curved surface curved upward in a concave state, Its top edge is A towel which is rotatably pivotally attached to the lower end of the upper portion of the inclined table, and the lower end edge of which is suspended by elastic supporting means at a plurality of positions on a stationary structural member in a direction that horizontally traverses the inclined table. The towel receiver is provided with a means for detecting and transmitting the amount of bending of the elastic supporting means that changes in accordance with the weight of the towel cloth that is placed on the towel cloth and descends from the inclined table. When the amount of staying of the towel roll in the roll receiver decreases and the amount of deflection of the elastic support means reaches a preset minimum value, the towel roll against the stock box is transferred to the stock box through the detecting and transmitting means. The replenishing means is activated to replenish the original towel cloth, increasing the amount of stay,
When the amount of flexure of the elastic support means increases and reaches a preset maximum value, the operation of supplying the raw towel cloth is stopped to intermittently start and stop the operation of supplying the raw towel cloth to the stock box. It is configured to control automatically.

In addition, the ear sewing guide mechanism incorporated in the ear stock sewing machine of the towel roll, the ear of the towel roll fed from the stock box and fed to the sewing machine, abuts in front of the sewing machine, Even when the feed speed of the feed dog of the sewing machine becomes lower than the feed speed of the towel roll, the ear of the towel roll can be lowered so as to be able to return with an elasticity that does not overload the feed dog of the sewing machine. As a means to detour in the upward or upward direction, a horizontal bar is provided on the machine base of the sewing machine so that the horizontal position can be automatically adjusted, and the other end of the leaf spring is fixed to the horizontal bar at one end. Further, a support shaft for rotatably supporting the tapered wheel body is attached, and the meandering of the original towel cloth is absorbed by the bending of the leaf spring.

[Action]

Since the original towel toweling device according to the present invention is configured as described above, it is included in the tilt table of the stock box and is formed so as to occupy substantially the lower half of the stock box, and can be freely moved in the vertical direction. The towel raw cloth receiver flexibly supported is supplied to the base (rear) end portion of the tilt base, that is, the upper end portion, via the towel raw cloth feeding means, and is attached to the surface of the tilt base. When the towel raw cloth receiver moves downward along the sideways and stays at a predetermined density when viewed from the side of the towel raw cloth receiver, the weight of the towel raw cloth receiver causes it to be displaced to a preset maximum bending position. This displacement is detected by the detection means provided at a predetermined position near the (lower) end, and the operation of the towel raw fabric supply means is stopped.

If the retention density in the towel raw cloth receiver is set by such control, the towel raw cloth can be delivered to the sewing machine very smoothly. In this way, when a considerable amount is fed out and, as a result, the towel raw cloth receiver is displaced to a predetermined small deflection position set in advance, the displacement is detected by the detecting means, and the towel raw cloth receiver is detected. Is activated, and the towel stock is supplied again to the upper end portion of the stock box until the towel stock is retained at a predetermined density in the towel stock receiver.

The ear sewing guide mechanism is extended from the stock box,
Even when the feed speed of the feed dog of the sewing machine is lower than the feed speed of the towel roll, the ears of the towel roll running in front of the sewing portion of the sewing machine are fed to the sewing machine.
A member such as a tapered wheel body elastically supported by an elastic force that does not overload the feed dog of the sewing machine is brought into contact with the sewing machine so that the ear can be detoured downward or upward so as to be able to return. . Therefore, even if there is a temporary difference in the speed between the feed roll that feeds the towel roll and the feed dog of the sewing machine on the sewing machine that has the same average value, it is possible to remove it even at the bypass of the towel roll. Since it can be absorbed, it is prevented that the feed dog of the sewing machine is unduly loaded. Further, by abutting a member such as a taper ring that is elastically supported on the ear, the edge of the edge of the towel original can be erected and assists the action of the spiral body that folds the ear in three. Furthermore, by abutting a member (tapered ring) that is elastically supported on each of the left and right ears, it is possible to prevent the towel cloth from being fed to the sewing machine in an uneven state due to meandering. Can be absorbed.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

In FIGS. 1 to 5, an ear sewing device B for a towel raw fabric A is a so-called castor b, which is a long strip formed by connecting a plurality of towel cloths a each having a length of one sheet. The towel raw fabric A is intermittently supplied from one end side thereof, that is, the upper part of the base (rear) end side of the stock box C,
When viewed from the side is retained in the state of the waveform, from the stock box C, to the sewing machine D having a pair of left and right ears sewing sewing machines 10 _a, 10 _b, a feed roller 9 serving as feeding means of towel raw The sewing machine is fed out through a pair of left and right cross guides 8 for correcting meandering, a new ear sewing guide mechanism F according to the present invention, and an ear tri-fold spiral 21 and the like, and then the sewing machine.
10 _a, 10 _b to thereby fed, after sewing a pair of left and right ears c, folding the swing-type folding machine E, in which to perform the series of operations of sending from the other end.

The stock box C is mounted on the upper end of the tilting table 1 which is lowered toward the front at an inclination angle of about 38 °, and two lower rollers rotated by a motor M ₁ via a sprocket wheel and a chain and one It is equipped with a towel raw fabric supply means 7 having a straightening function, which comprises a press roller of
A roll of towel material A wound in a roll is accommodated in the inside of the tilt base 1 through _a tension unit rod 6a, and the supply means 7 is actuated to provide a pair of left and right guide plates.
Between 1 _c and 1 _d , it can be retained in a corrugated state having a desired density when viewed from the side.

Further, at least substantially the lower half portion included in the tilting table 1 is configured as a towel raw cloth receiver 1 _b which is elastically supported so as to be freely bent in the vertical direction, and the upper portion 1 of the tilting table 1 is formed. rotatably to the lower edge of _a vertically, the tip portion of the upper edge pivotally clothed it was the towel raw receiving 1 _b is bent in concave curved surface in cross section has a generally arcuate, moreover tip The upper end edge 1 _e of the part that is bent upward is placed at _a proper position of the horizontal plate 2 _a included in the machine base 2 that constitutes the tilt base 1 and has the elastic support means 3
It is hung up through.

The elastically supporting means 3, the lock nut 3 _a, through between the adjustable screw rod 3 _c of the upper and lower positions, the upper edge 1 _e of the screw rod 3 _c and the towels raw received 1 _b It is composed of a set the spring 3 _b. In addition, this towel towel roll _1b is the earliest (below)
At a proper position of the end position, the detection means 4 including a limit switch sensor for detecting the deflection is a transverse beam 2 _{b of the} machine base 2.
Installed on.

The detection means 4 corresponds to a state in which the towel raw fabric A is retained on the towel raw fabric receiver 1 _{b in} a wavy state in which the intervals in the front-rear direction are close to each other within a limit that can be smoothly delivered to the sewing machine D. Therefore, preset predetermined by detecting a large deflection position, actuating the towel raw supply means 7 as described above, also towels raw web receives 1 _b and the ramp 1 part 1 _a on the surface in its upper When the amount of the towel raw fabric A retained in the area decreases as it is fed to the sewing machine D and reaches a preset small deflection position, it is detected and the towel raw fabric supply means 7 is activated. Supply stock towel C to stock box C,
The original towel towel A is retained in a corrugated state on the inclined table 1 until the original towel receiver 1 _b returns to the large deflection position that can be set.

The towel roll A has a tilting table 1 having a downward angle of about 38 °.
On top of that, when fed at a moderate speed, depending on its flexibility, it will automatically overlap and descend into a corrugated state with a suitable density.

Tension rod units 6 _b , 6 _c , 6 _d for correcting the twist of the original towel A are provided on the machine base 2 from the stock box C to the sewing machine D as shown in the drawing.

Further, as a front-end device for the sewing machines 10 _a and 10 _b , which are the main constituents of the sewing machine D, _a pair of left and right cross guiders 8 and 2 rubber-tensioned feeds that have been widely used in the industry for correcting the meandering of the towel original A Roller 9, tension rod unit 6 _e ,
6 _f , a novel sewing guide mechanism F according to the present invention, a three-folded helix 21 for ears and the like are provided.

Like the other devices, the ear sewing guide mechanism F is laterally provided on the machine base 16 so that its position in the left-right direction can be adjusted in accordance with the width of the target towel material A. Table stick 1
_6a , a leaf spring 17 fixed with a screw or the like, and a taper ring body 19 rotatably mounted around a support shaft 18 fixed to the lower end of the leaf spring 17 (see FIG. 3). .

Spring constant of the plate spring 17 is, specifically feeding speed of the feed roller 9 is temporarily when it becomes smaller than the feeding speed of the sewing machine 10 _a, 10 _b of the feed dog 20, ear feed dog 20 is tapered ring 19 It is selected so that it does not impose a great burden on pulling in the ear C of the original towel cloth A that has been circumvented downward. On the contrary, when the feeding speed of the feed roller 9 becomes higher, the tapered wheel body 19 lowers,
Absorb slack. The large-diameter portion edge of the tapered wheel body 19,
By contacting the inside of the ear C before sewing, the ear C
The outer side of is erected to assist the tri-folding by the tri-folding spiral body 21 and to cooperate with it.

Further, when the meandering correction by the cross guider 8 is insufficient and the meandering remains, it has an action and a function of absorbing the meandering.

The towel cloth A has its ears C folded in three by the spiral body 21 and then the inside of the three folds is sewn by the sewing machines 10 _a and 10 _b , and passes through the tension rod unit 6 _f and the motor M ₂
The belt conveyor 13 driven by means of is carried to the swing casing 14. The swing casing 14 is swung in the front-rear direction by a crank mechanism 15 driven by a motor M _2, the towel raw A is folded in the swinging range.

Note In FIG. 1, 12 in the sewing yarn, through the yarn breakage detecting means 11, and is supplied to the sewing machine 10 _a, 10 _b.

FIG. 4 schematically shows a main part of an embodiment of a sewing guide mechanism F different from that shown in FIG. 3, and the position in the left-right direction can be adjusted according to the width of the raw towel cloth A. frame 16 _b provided on the machine base 16, a support shaft 16 _d of rotating and loosening the lock nut 16 _c, an arm 16 _e mounted swingably to the support shaft, rolling the bottom of the arm and a tapered ring member 19 _a which can be fitted, with their support shafts 16d, are thereby configured by a coil spring 16f which is interposed between the arm 16e.

[Effect of device]

Since the present invention is configured as described above, it has the following unique effects.

(1) According to the ear sewing device B of the original towel A according to claim 1, the towel is intermittently supplied from one end side of the device to the upper end portion of the tilting table 1 which is inclined toward the front of the stock box C. Since the supply of the towel raw fabric A is properly controlled based on the amount of bending of the towel raw fabric receiver 1b provided so as to occupy the lower half of the sloping base 1, the towel raw fabric A is fed from the stock box C. It is set on the inclined table in a corrugated state having a predetermined density, which can be continuously and smoothly fed to the sewing machine D, and the stay amount is reduced as it is fed, and the setting is performed. Reached a certain value
The replenishment is automatically performed, and the replenishment and retention management of the towel raw fabric A are performed with extremely high accuracy.

For example, as in the conventional method, when the towel is pulled at the intermediate position of the stock box, the load on the limit switch on the bottom plate of the box disappears and the signal to send out is sent. Therefore, smooth processing cannot be expected.

Further, by elastically supporting the towel raw cloth receiver 1b as in the device of the present invention, the elastic means is extremely effective in unraveling the unraveling of the towel cloth that is moving, when it unravels. It largely works and contributes to the improvement of work efficiency.

(2) With the structure of the selvage sewing guide mechanism F according to claim 2, a support shaft for rotatably supporting the tapered ring member is attached to the other end of the leaf spring having one end fixed to the horizontal rod, and the leaf spring is provided. Since the meandering of the towel roll is absorbed by the bending of the sewing machine together with the function of automatically adjusting the horizontal position of the horizontal bar, it is strong enough not to overload the feed dog 20 of the sewing machine 10a, 10b. With the elasticity of having the function of diverting the ear of the towel raw fabric A upward or downward in front of the sewing machine, the ear C of the towel raw fabric A is erected in a predetermined shape with high precision. Moreover, even if the feeding speed of the original towel A is changed, the feeding teeth 20 of the sewing machines 10a and 10b are not overloaded by the elastic response.

Not only that, but also the cross guider 8 and the other meandering correction means, which are separately provided, effectively absorbs the meandering of the towel raw material that is left without being sufficiently corrected, and the towel raw material is effectively absorbed. Anti-Ear C Tri-Fold Spiral 2
It is possible to continuously and smoothly feed the sewing machine 1 or the sewing machine 10a or 10b in a regular state.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a right side view of an entire ear sewing device for a towel cloth according to the present invention, and FIG. 2 is a main part of a stock box included in the device. FIG. 3 is a partially enlarged perspective view, FIG. 3 is an enlarged perspective view of an essential part for explaining the principle mechanism of the first embodiment of the sewing guide mechanism incorporated in the towel sewing machine, and FIG. 4 is different from FIG. FIG. 5 is a schematic enlarged perspective view of an essential part of the second embodiment, and FIG. 5 is a plan view for explaining the towel original. A: Towel roll, B: Towel roll for ear sewing device, C: Stock box, D: Sewing machine, E: Swing-type folding machine, F: Ear sewing guide mechanism, M ₁ , M ₂ …… Motor, 1 …… Tilting stand, 1 _b …… Towel roll cloth receiver, 1 _e …… Upper edge, 3 …… Blank support means, 4 …… Detecting means, 7 …… Towel roll cloth Supply means, 10,1
0 _a , 10 _b …… Sewing machine, 19,19 _a …… Tapered wheel, 20 …… Sewing tooth, 21 …… Tri-fold spiral body of ear.

Claims (2)

[Scope of utility model registration request] 1. A supply means provided on the upstream side of the tilt table supplies intermittently from the upper end of the tilt table to a stock box formed in the upper part of the tilt table, and the shape seen from the side is wavy. The continuous long towel roll that descends toward the lower half of the slant table along the slope of the stock box while staying in the stock box in a state of being pulled up to the slant table. It is fed out sequentially from the lower half part and fed to the sewing machine through the sewing guide mechanism of the towel ears, and the left and right ears are sewn by the sewing machine in the sewing machine and then folded and fed out. In the ear sewing machine for a towel raw fabric, the lower half portion of the inclined table is formed into a curved surface which is curved upward in a concave shape, and the upper end edge thereof is rotatably pivoted to the lower end of the upper portion of the inclined table. Worn, its bottom edge Is configured as a towel raw cloth receiver suspended by elastic means at a plurality of positions on a stationary structural member in a direction that horizontally traverses the tilt base, and descends the tilt base to ride on the towel raw cloth receiver. Further, a means for detecting and transmitting the amount of bending of the elastic supporting means that changes according to the weight of the original towel is installed, and the amount of staying of the original towel in the original towel receiver is reduced, so that the elastic supporting means. When the amount of flexure of the towel reaches a predetermined minimum value set in advance, the means for replenishing the stock towel with the stock box is operated through the detection and transmission means to replenish the stock towel and the retention amount increases. When the amount of bending of the elastic support means increases to reach a preset maximum value, the operation of supplying the raw towel cloth is stopped to start and stop the operation of supplying the raw towel cloth to the stock box. Control intermittently Towel raw ear sewing apparatus characterized by being configured. 2. An ear sewing guide mechanism incorporated in an ear sewing machine for a towel raw material is provided in front of the sewing machine with respect to the ear of the towel raw material fed from the stock box and fed to the sewing machine. Even when abutting and the feed speed of the feed dog of the sewing machine becomes lower than the feed speed of the towel roll, it is possible to return with the elastic force not to overload the feed dog of the sewing machine. As a means for circumventing the ears downward or upward, a horizontal bar is provided on the machine base of the sewing machine so that the horizontal position can be automatically adjusted, and a leaf spring having one end fixed to the horizontal bar is provided. A sewing guide mechanism for ears, characterized in that a support shaft for rotatably supporting a tapered wheel body is attached to the other end of the blade so as to absorb the meandering of the towel cloth by bending of the leaf spring.