JPH0128773Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is applicable to belt-shaped fabrics such as tape-shaped knitted fabrics or tape-shaped elastic fabrics produced by knitting and weaving rubber threads or polyurethane elastic threads. In detail, in a manufacturing device that joins the dough in a circular shape, a belt-shaped dough supply section is configured in a position perpendicular to the joint surface of the dough joining table of the dough joining device, and the belt-shaped dough supplied to this supply section is It is equipped with clamping claws that can freely clamp and release the clamping of both ends of the fabric, and by swinging the fabric joining table close to the joining surface side, both ends of the strip-shaped fabric that are respectively clamped by the clamping claws are held on the fabric joining table. The present invention relates to an annular fabric manufacturing device that is provided with a pair of arms that overlap on a joint surface.

[Conventional technology]

In this type of annular dough manufacturing device, both arms are reciprocated with a fixed rotation center at a position equidistant from the end of the strip-shaped dough supplied to the supply section and the joining surface of the dough joining table. It is known that the device was configured to move (for example, the
47470, JP-A-60-55992).

In the case of this conventional device, by only one-point swinging of both arms, the ends of the strip-shaped dough supplied to the supply section are clamped, and the clamped ends are superimposed on the joining surface of the dough joining table. In other words, the length of the arm is governed by the distance between the supply section and the joining surface of the dough joining table.
A long arm is also required, and as a result, the movement trajectory of the tip of the arm becomes large, which not only restricts the arrangement of other components, but also limits the diameter of the annular fabric. It was hot.

[Problem that the invention attempts to solve]

The purpose of the present invention is to reduce restrictions on the arrangement of other constituent members by improving the locus of movement of the tip end of the arm, and to also make it possible to manufacture even small-diameter annular fabrics.

[Means for solving problems]

The characteristic structure of the annular dough manufacturing apparatus according to the present invention, which was taken to achieve such an object, is that a drive mechanism is provided for moving the swing centers of the two arms in the direction of distance from and near the dough joining table. The effects and effects are as follows.

[Effect]

After moving the arm equipped with the clamping claw from the dough supply section to the dough joining table side, the arm is swung close to the joining surface side of the dough joining table, and both ends of the strip-shaped dough clamped by the dough supply section are moved. is superimposed on the joining surface of the dough joining table, so the length of the arm is not controlled by the distance between the dough supply section and the joining surface of the dough joining table, and this arm can be shortened. can do.

[Effect of idea]

Therefore, since the movement locus of the tip of the arm can be made smaller than in the past, it is possible to not only reduce restrictions on the arrangement of other structural members, but also to reduce the minimum diameter that can be joined to the annular fabric. was able to be made as small as possible.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

Figure 10 shows an elastic band-shaped fabric such as a tape-shaped elastic fabric made of rubber-like or polyurethane elastic yarn.
This shows a manufacturing device that sequentially cuts pieces into predetermined dimensions and joins them into an annular shape. This involves a fabric joining device A that feeds a long elastic band-shaped fabric a while removing twists and wrinkles, and a fabric joining device A that pinches the end of the fabric a supplied from the fabric feeding device A. A fabric pull-out device C passes under the sewing table (fabric bonding table) 1 of a sewing machine B, which is an example of a fabric bonding device, and pulls out the fabric. A fabric feeding device D that feeds out a predetermined size of the fabric a, a cutting device E that cuts the fed fabric a to a predetermined size, a means for superimposing both ends of the cut fabric a on the sewing table 1, and a sewn circular fabric. It is equipped with a polymerization device F equipped with means for taking out a, and a release device G that releases and moves the drooping portion of the fabric a superimposed on the sewing table 1 in the polymerization device F from the fabric pull-out path of the fabric pull-out device C. has been done.

The dough supply device A, as shown in FIG.
By applying an impact force to the fabric a fed out from the rolled fabric in the fabric storage container 3 on the vertical frame 2b connected to one end of the table 2a of the machine frame 2, twisting points that occur as the fabric is fed out can be fixed. an untwisting mechanism 4 that sequentially moves the material downward, a sensor 5 that detects the seam of the fabric a hanging down from the untwisting mechanism 4, and a sensor 5 that detects the seam of the fabric a that has passed through the sensor 5.
A wrinkle removing mechanism 6 for removing wrinkles, and a pair of upper and lower photo sensors 7a and 7b for detecting the drooping position of the fabric a that has passed through the wrinkle removing mechanism 6 are provided. , a claw member 8 that prevents backflow of the fabric a, and a claw member 8 that prevents the fabric a from flowing backward;
A sensor 9 for detecting the presence or absence of is provided.

The untwisting mechanism 4 has pins 4b fixed to three positions equally spaced in the circumferential direction of a disk 4a which is driven and rotated by a motor (not shown) to apply an impact force to the fabric as the drive rotates. It is configured as follows.

The wrinkle removing mechanism 6 is constructed as follows.
A first feed roller 6a is mounted on the upper side of the vertical frame 2b and is driven and rotated by a pulse motor (not shown).
A first press roller 6b that elastically presses the dough a is attached to the first feed roller 6a. On the other hand, on the lower side of the vertical frame 2b, a second feed roller is interlocked with the first feed roller 6a via a timing belt 6c and is formed to have a larger diameter than the first feed roller 6a. 6d, and a second press roller 6e that elastically presses the dough a to the second feed roller 6d. Then, by driving the second feed roller 6d at a dough feeding speed higher than that of the first feed roller 6a, the dough a located between these two feed rollers 6a and 6b is tensioned. It is structured as possible.

Further, in a frame portion of the vertical frame 2b located between the feed rollers 6a and 6b, there are provided a steam supply pipe 6F for spraying steam onto the dough a under tension, and an electric heater 6g for heating and drying the dough. It is provided.

The pulse motor for driving the first feed roller 6a is driven when the upper photo sensor 7a detects the drooping edge of the fabric a, and when the lower photo sensor 7b detects the drooping edge of the fabric a. It is configured to stop at.

As shown in FIG. 6, the fabric drawing device C is
A slide bearing 10 attached to the table 2a, a fixed clamping claw 11 attached to the tip of the slide case of this slide bearing 10,
Movable clamping claw 12 pivotally attached to this fixed clamping claw 11
, a fluid pressure cylinder 14 that swings the movable clamping claw 12 to open and close via a link 13, and a fluid pressure cylinder 15 that moves both clamping claws 11, 12 and the entire hydraulic cylinder 14 in the fabric drawing direction. has been done.

The dough feeding device D is constructed as follows.

As shown in FIGS. 7 to 9, table 2a
A pair of fixed guide members 20 and 21 are provided at the lower side of the dough pull-out path and are spaced apart from each other by a predetermined distance in the dough pull-out direction. At the bottom of the machine frame 2 facing the pair of fixed guide members 20 and 21, there are racks 2 that are vertically parallel to each other.
2 and a guide rod 23 are pivotally connected to each other so as to be swingable around the horizontal axis X in a direction perpendicular to the fabric drawing direction, and these racks 22 and guide rods 23
A movable frame 24 is attached so as to be slidable only in the vertical direction. This movable frame 24 has
A pulse motor 26 equipped with a pinion gear 25 meshing with the rack 22 and a support member 27 projecting upward are provided, and at the upper end of the support member 27 is located between the fixed guide members 20 and 21. A dough feeding member 28 is provided which can come into contact with the upper surface of the center portion of the dough a.

The dough feeding member 28 and the fixed guide member 20 located on the side of the cutting device E are each composed of a roller, and a pulley 29 fixed to the drive shaft 26a of the pulse motor 26 and a rotation support shaft of the dough feeding member 28 A timing belt 31 for driving and rotating the dough feeding member 28 in the dough feeding direction at a speed equal to the feeding speed of the dough a is stretched between the dough feeding member 28a and a pulley 30 fixed to the dough feeding member 28a.

A fluid pressure cylinder 32 is installed between the rack gear 22 and the guide rod 23 and the table 2a to swing the entire dough feeding device D around the horizontal axis X toward the table 2a.

Then, when the pulse motor 26 is operated to drive and rotate the pinion gear 25, the rack gear 22
The movable frame 24 moves downward along. Along with this, the dough feeding member 28 presses the upper surface of the dough a while lowering through between the fixed guide members 20 and 21,
The dough a is fed out by a predetermined size. At this time, since the dough feeding member 28 and the fixed guide member 20 on the side of the cutting device E are each composed of rollers, the frictional force between them and the dough a is reduced, and moreover, the dough feeding member 28 is driven by a pulse motor. Coupled with the drive rotation in the dough feeding direction in synchronization with the dough feeding direction 26, it is possible to suppress variations in the dough delivery dimension caused by the elongation of the dough a during dough delivery.

Further, by using the pulse motor 26 as the drive source of the dough feeding device D, the dough feeding dimension can be changed easily and with high precision by pulse control of the pulse motor 26.

Note that a servo motor may be used instead of the pulse motor 26.

The cutting device E includes a movable blade 35 and a fixed receiving blade 36, which are arranged oppositely on both the upper and lower sides of the dough pull-out path;
It is comprised of a drive mechanism (not shown) that moves the movable blade 35 up and down.

The polymerization apparatus F is constructed as follows.

As shown in FIGS. 1 to 4, table 2a
A pair of L-shaped brackets 4 attached to the bottom of the
Slide bearings 41, 41 which are expandable and retractable in the direction perpendicular to the fabric drawing path are attached to the slide bearings 41, 40.
Slide frame 42 across the slide case
has been erected. This slide frame 42
A drive mechanism 38 for raising and lowering an arm 59, which will be described later, is reciprocated between a fabric draw-out path that is a fabric supply section and the sewing table 1, and a drive mechanism 39 that swings the arm 59 back and forth around the horizontal interlining. It is provided,
Among them, the drive mechanism 38 for raising and lowering is constructed as follows.

That is, a pair of pipe-shaped guide rods 45 are installed between the slide frame 42 and the upper part of the support frame 43 erected on the slide frame 42, and guide the elevating frame 44 in a vertically movable manner.
In the middle of the lift frame 44, there is a piston 46 that slides into contact with the wall surface for forming the cylinder chamber inside the lifting frame 44, and an upper cylinder chamber 4 that is partitioned and formed by these pistons 46.
7a and holes 48a and 48b for supplying pressure fluid to the lower cylinder chamber 47b are formed.

The internal space of the guide rod 45 is configured to also serve as a part of a pressure fluid supply path 51 equipped with a pump 49 and a cutoff valve 50.

Then, by operating the cutoff valve 50, pressurized fluid from the pump 49 is selectively supplied to the upper cylinder chamber 47a and the lower cylinder chamber 47b, thereby raising and lowering the lifting frame 44. There is.

The swinging drive mechanism 39 is attached to the lifting frame 44,
A pair of cylinder cases 55 connected to a pressure fluid supply path 54 equipped with a pump 52 and a switching valve 53 are attached, and each cylinder case 55 has a piston 56 equipped with a rack gear 56a.
A rotary shaft 58 is provided with a pinion gear 57 which is constantly engaged and interlocked with the rack gear 56a, and the piston 56 is moved up and down by selectively supplying pressurized fluid from the pump 52 to the cylinder chambers 55a and 55b of the cylinder case 55. By this, the rotating shaft 5
8 is configured to rotate within a certain angle range.

The arm 59 attached to the protruding end of each rotating shaft 58 has clamping claws 60, 6 that can clamp and release both parts of the fabric a cut to a predetermined size.
1 and a fluid pressure cylinder 62 that opens and closes the movable clamping claw 60 relative to the fixed clamping claw 61, and when the lifting frame 44 is raised to a predetermined position, the arms 59 are rotated. , so that the ends of the fabric a held by the holding claws 60 and 61, respectively, are superimposed on the sewing surface of the sewing table 1.

A fluid pressure cylinder 63 is installed between the slide frame 42 and the table 2a to move the entire polymerization device F in a direction orthogonal to the fabric drawing path in order to take out the sewn annular fabric a from the sewing table 1. There is.

As shown in FIG. 1, the relief device G includes a fluid pressure cylinder 70 that is movable in the direction of the arm rotation axis of the polymerization device F, and
The material extrusion rod 71 is fixed to the tip of the rod, and by the extension operation of the fluid pressure cylinder 70, the lower part of the material a held between the presser foot 73 of the sewing machine B and the sewing table 1 is pushed out. The extrusion rod 71 is configured to move the fabric out of the pull-out path.

In the figure, 72 is a sewing machine needle which is one of the constituent members of the sewing machine B, and 74 is a pair of auxiliary pressers for pressing the ends of the fabric a superimposed on the sewing table 1. Reference numeral 75 denotes a micro switch that detects whether or not the overlapping ends of the fabric a are sewn.

Next, the operation of the annular dough manufacturing apparatus constructed as described above will be explained based on FIGS. 11 to 29.

(b) Immediately before turning on the start switch, the starting edge of the fabric a is connected to the double blade 3 of the cutting device E.
5 and 36 to the cutting operation position. (See FIG. 11) (b) Turn on the start switch to extend the hydraulic cylinder 15 of the fabric drawing device C, and clamp the starting end of the fabric a with its clamping claws 11 and 12. (See FIG. 12) (c) The fluid pressure cylinder 15 of the fabric drawing device C is contracted. (See FIG. 13) (d) Lower the dough feeding member 28 of the dough feeding device D to feed out the fabric a by a predetermined cutting dimension.
At this time, the clamping claws 60 and 61 of the polymerization device F are waiting at a position away from the dough pull-out path.
(Refer to Figures 14 and 23) (e) Move the polymerization device F horizontally to the dough pull-out path side, clamp the dough a with the clamping claws 60 and 61 of the polymerization device F, and move the dough pull-out device C The clamping claws 11 and 12 are opened. Further, the cloth a is cut with the double blades 35 and 36 of the cutting device E.
(Refer to FIGS. 15 and 24) (F) The fluid pressure cylinder 32 of the fabric feeding device D is contracted to retract the fabric feeding member 28 from the fabric drawing path. (See Figure 25) (G) After raising one arm 59 of the polymerization device F, turn it approximately half a turn, and place one end of the fabric a held by the gripping claws 60 and 61 of this arm 59 on the sewing table 1. At the same time, one end of the fabric a is pressed onto the sewing table 1 using one of the auxiliary pressers 74. (See Figures 16 and 17) (H) Raise the other arm 59 of the polymerization device F, then rotate it approximately half a turn, and remove the other end of the dough a held by the gripping claws 60, 61 of this arm 59. is superimposed on one end of the fabric a already located on the sewing table 1, and the other end of the fabric a is pressed against the sewing table 1 by the other auxiliary presser 74.
At this time, the pressing action by one of the auxiliary pressing tools 74 has already been released. (Fig. 18, 19
(See diagram) (Li) Lower the presser foot 73 of sewing machine B, and
The overlapping end of the sewing table 1 is pressed and fixed between it and the sewing table 1, and the pressing action by the other auxiliary presser 74 is also released. (See Fig. 20) (J) After releasing the clamping by the clamping claws 60, 61 of the polymerization device F, sewing by the sewing machine B is started. At the same time, the fluid pressure cylinder 70 is extended and the fabric held between the presser foot 73 of the sewing machine B and the sewing table 1 by the fabric presser rod 71 attached to the tip of the fluid pressure cylinder 70. After moving the lower part of fabric a away from the fabric drawing path, the hydraulic cylinder 15 of the fabric drawing device C is operated to extend, and the starting end of the next fabric a is clamped by its clamping claws 11 and 12. . (Refer to Figures 21 and 26) (R) After raising the presser foot 73 of the sewing machine B and clamping the sewn annular fabric a with the clamping claws 60 and 61 of the polymerization device F, the polymerization device F The entire fabric is moved away from the fabric drawing path and the annular fabric a is taken out from the sewing table 1. During this removal, the micro switch 75 detects whether or not a sewing error has occurred, and if a sewing error has occurred, a sewing stop mechanism is activated based on the output signal. Then, when the detection of the sewing error is completed, the clamping claw 6 of the polymerization device F
0 and 61 are released, and the annular dough a is taken out to the holding rod 76. (See Figures 22, 27 to 29)

[Brief explanation of drawings]

The drawings show an embodiment of the annular dough manufacturing device according to the present invention, in which FIG. 1 is a side view of the polymerization device, FIGS. 2 to 4 are enlarged views of the main parts of the polymerization device, and FIG. 5 is a dough supply. 6 is a front view of the dough drawing device, FIGS. 7 and 8 are front and side views of the dough drawing device, FIG. 9 is a cross-sectional view taken along the line -- in FIG. 7, and FIG. 10 is a front view of the device. 11 is an overall front view of the annular dough manufacturing device.
Figures 22 to 22 are front views showing the sewing process, and Figure 23 is a front view showing the sewing process.
29 are side views showing the sewing process. B...Dough joining device, F...Polymerization device, a...
Band-shaped fabric, 1... fabric joining table, 38... drive mechanism, 59... arm, 60, 61... clamping claw.

Claims (1)

[Scope of utility model registration request] A supply section for the strip-shaped fabric a is configured at a position away from the fabric joining table 1 of the fabric joining device A in a direction orthogonal to the joining surface thereof, and both ends of the strip-shaped fabric a supplied to this supply section are held between the fabric joining table 1. It is also provided with clamping claws 60 and 61 that can freely release the clamping, and the fabric joining table 1
The clamping claws 6
This is an annular dough manufacturing device which is provided with a pair of arms 59 for superimposing both ends of a strip-shaped dough a held at 0 and 61 onto the joining surface of a dough joining table 1, and the swing center of both arms 59 is An annular dough manufacturing apparatus provided with a drive mechanism 38 for moving the material in the direction of distance from and near the dough joining table 1.