JPS58190491A - Tatami bed transfer apparatus of tatami manufacturing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a tatami bed transfer device for a tatami sewing machine.

In the tatami manufacturing process, after sewing both ends of the tatami face to the stile of the tatami floor, the above-mentioned skewer is used to sew the hem cloth and the underside of the edging to the upper surface of both sides of the tatami face, overlapping the inside out. It is known that a tatami bed with a tatami cover attached thereto is fixed on the bone surface and a sewing machine is run along the side edge of the tatami bed (see Japanese Utility Model Publication No. 51-28807). However, in the above-mentioned known flat embroidery machine, the tatami floor is fixed to a tatami mat and the sewing machine is run, and since the sewing machine is installed only on one side of the tatami mat, it is difficult to skewer a single tatami mat. In order to carry out this process, it is necessary to make two reciprocations of the sewing machine and to attach and remove the tatami mats each time the sewing machine makes two reciprocations, which has the disadvantage that it is not possible to process a large number of tatami mats continuously.

In order to solve the above-mentioned drawbacks, the applicant first invented a double-sided stitching machine in which two sewing machines are arranged facing each other and an HC tatami floor is supplied between the two sewing machines. As a tatami bed transfer device that can be used with this double-sided stitching machine, a horizontally long rack kite is installed so that it can be raised and lowered freely, and a tatami bed upper surface presser is attached to the bottom of the rank that can be slidably attached to this rack guide. 1. Fix the bar parallel to the rack, and when the rack guide is in the lowered position, press the tatami floor against the top pressing bar using a roller with downward force.1. We proposed a system in which the tatami floor was transported by driving a track rack with a pinion that was rotated intermittently in synchronization with the sewing machine needle (Japanese Patent Application No. 56-1).
12420 and Japanese Patent Application No. 56-200739). However, after the sewing of the preceding tatami floor is completed, this tatami floor transfer device raises and lowers the rack kite to separate the two side pressing bars from the preceding tatami floor, and
Afterwards, it was necessary to reverse the binion and move the rack back together with the top pressing bar, which caused the inconvenience of not being able to sew the tatami floor during this time.

This invention (L'i), by transferring the tatami floor with an endless chain that rotates in one direction instead of reciprocating the hook, solves the above-mentioned inconvenience, and is not limited to the above-mentioned flat stitching, but also stile stitching. To provide a tatami floor transfer device which can be used in a tatami sewing machine for simultaneously performing backstitching on the left and right sides.

That is, the present invention uses a tatami mat 8≧′ in which stile stitching, flat stitching, or reverse stitching is simultaneously performed on the left and right sides of the tatami bed by sewing machines on both the left and right sides in the transport direction while the tatami bed is moved straight in the width direction or in the long bag direction. A guide support stand for the tatami floor is provided along the direction of transport of the tatami floor, and endless chains are provided in parallel in two rows on each of the left and right sides of the guide support stand. An inner connecting rod and an outer connecting rod that straddle the guide support stand shown in ``-'' are fixed to the pair of inner chains and a pair of outer chains located outside, respectively, and the inner connecting rod and the outer connecting rod described in ``2'' are attached to the inner connecting rod and the outer connecting rod. Attach the tatami pushing rod that engages with the rear end of the tatami floor on the guide support stand, drive the above inner chain and outer chain individually in one direction, and alternately drive the tatami pushing rod of the inner chain and the tatami pushing rod of the outer chain. This is a tatami bed transfer device for a tatami sewing machine, characterized in that the tatami bed transfer device engages with the rear end of the tatami bed to transfer the tatami bed.

Below is an example in which this invention is applied to a reverse stitching machine.
IT]'IK, t: will be explained.

In Figures 1 and 2, A is a tatami bed with a tatami cover (not shown) attached and stitched with stilts and flat 1jL. Book rollers 1 are rotatably supported and arranged in the direction of arrow P. On both the left and right sides of this row of rollers 1, two rows of endless chains 2.3 for transmission extend in a straight line over a section approximately 15 times the length of the tatami floor A, and the upper straight part (see Figure 2). A pair of outer chains 2 located on the outer side of the four rows and a pair of inner chains 3 located on the inner side of the four rows
are rotated independently of each other in the same direction of arrow Q. That is, a pair of external tlllll chenos 2.2
Sprocket 4a on the drive side (right side in Figure 1) that meshes with
, 4a and the driven side sprocket shafts 5a, 5a are fixed to both ends of the outer sprocket shafts 4 and 5, respectively. )7
Outer sprocket shafts 4 and 5 are shown for a, 7 & respectively.
The outer sprocket shaft 4 is fixed to both ends of hollow inner sprocket shafts 6 and 70 which are rotatably fitted in the outer sprocket shaft 4.
and inner sprocket shaft 6 or screw feed conversion mechanism 8
Intermittent rotation or continuous rotation is performed by the transmission of (C).

The feed conversion mechanism 8 described in ``2'' is constructed as shown in FIG. That is, the intermittent rotation shaft 10 is connected to the shaft end of the drive side outer sprocket shaft 4 via the first electromagnetic clutch 9.
is connected. A ratchet wheel 1 and a first intermediate blowout 12 are fixed to the intermittent rotating shaft 10, respectively. The ratchet wheel 11 has a feed pawl 13
is engaged, and the feed lever 14 to which this feed pawl 13 is attached
is the fixed sewing machine 15 for backstitching installed on the left side.
When the motor 16 rotates, the motor sprocket 16a
1, an endless chain 17, a sprocket for incomplete driving, a camshaft 19, a cam 3), a swing lever (not shown), etc., and are swung. In addition, the first middle 1141 subblock node) 2 is an endless chain 21
Connected with the second Φ sprocket nod n with 1til-number of teeth.
The intermediate shaft portion to which 2 is fixed is supported in the intermittent rotation Qr 1o and γ rows of F, and one end of the continuous rotation shaft portion is connected to the shaft end via a second electromagnetic clutch, and this continuous rotation shaft portion One end of the inner drive shaft I is connected to the other end via a third magnetic crankshaft.

Continuous drive sprocket 1 is used for continuous rotation 4q1i25 in 1-.
1. Throat Z is fixed, and this continuous drive sub
On the other hand, the rotation of the right continuous feed seventh gear is transmitted through the motor sprocket 29a and the endless chain nozzle. Further, the inner drive shaft 27 has a 311th bow 1.
11 The third intermediate sprocket 31 is fixed to this third intermediate sprocket) 31 is connected to the fourth intermediate sprocket 6b with the same number of teeth through an endless chain blade. It is integrated with the stripe location/trot a fixed to the inner 1μ sprocket shaft 6.

4 and 5, each of the pair of outer chains 2.2 marked 1- is provided with L-shaped fittings 2a, 2a or fixed a t't on the side facing the inner chain 3.3. Both ends of the outer connecting rod in the width direction that straddles the roller 1 are fixed to one end of the columnar metal fittings 2b, 2b erected on the left and right L-shaped metal fittings 2a, 2a. At the center of the upper surface of this outer connecting rod, the central protrusion 34a of the tatami pusher that engages with the rear end of the tatami floor Aσ) of the roller IL is swingably mounted by a vertical support shaft Jl, Outside 1! ! lJ! 1
! Upper surface protrusions 33a, 33 protruding from the left and right upper surfaces of the congeus feathers.
Fill springs 萬 and 蕊 are installed between a and both left and right ends of the tatami push rod.

Then, an end surface protrusion 33b is protruded from the left end surface of the outer connecting wing, and as the outer chain 2 rotates, the end surface protrusion 33b is attached to the lower l# line part of the left outer chain 2 (see FIG. 1). and limit switches 37a and 37b provided along the outer chain (see Fig. 2), and sequentially operate these to open and close the electromagnetic clutch 9, force and force, and control the speed of the outer chain 2. It is supposed to be converted. Third.
Reference numeral 38 is a stopper for preventing slack and vibration of the outer chain 2 and the inner chain 3.

The inner chain 3.3 of the above 1st 1 has a thread 56.
As shown in the figure, Gτ, outer chain 2.2 and opposing O, 7.
L-shaped position 3a, 3a is fixed to 0J11) 1
1 cedar 3 negative 3a, pillar metal fittings 3b erected on 3a, 3 dragon) inside 1) l! I i'4! Both ends of the rope are fixed. Na”. The spring strings are provided in the same way as in the case of the outer chain 2. Then, an end surface protrusion 39b is provided protrudingly on the right end surface of the inner rib, which is opposite to that of the outer connecting wing, and this end surface protrusion a
++b or 11 As the chain 3 rotates, the right inner chain 30F side straight part (see Figures 1 and 2) & the first limit switch 43a, 4 provided:
(Mir σ by contacting b and activating these sequentially)
Electromagnetic club/Sen9, 洟, open and close, inner chain 3σ)
It is now possible to change the degree of confusion.

Figure 1 43 and Figure 2.
Sliding sewing machine interlocking opposite 15 Le tsuge, along tsuge, i
C It can be slid freely in the width direction. σ) + ff
! At the bottom of the moving feather, there is a Nando 4 as shown in Figure 7.
4a is fixed, and a feed screw 46b that can be rotated by a sliding motor 4'12L is screwed into this nut 44a. In addition, there is an L-shaped 1. This L-shaped bar is installed so that it can freely swing horizontally, and is pressed against the side surface of the tatami floor A by the elasticity of a roller 46a or a spring 47 attached to one end of this L-shaped bar. When the bar chrysanthemum rotates clockwise, the iron piece 46b fixed to the other end faces the left proximity switch 48a, and this proximity switch 48a operates to drive the sliding motor 4!
1a rotates in the normal direction, thereby sending the sliding sewing machine blade in the direction of arrow R, and conversely, when the bar chrysanthemum turns counterclockwise in an L shape, the iron piece 46b faces the right proximity switch 48b. The sliding motor 45a is reversely rotated, so that the sliding sewing machine is sent in the opposite direction of the arrow R.

Note that in FIGS. 1 and 2, chrysanthemum is a press roller that is provided to press the upper surface of the sewn portion of the tatami floor A and is movable up and down. In addition, the mat is a fixed tatami bed guide fixed in contact with the side of the tatami bed A in order to regulate the widthwise position of the tatami bed A, and the prisoner is the fixed tatami bed kite on the side of the sliding sewing machine. A sliding tatami bed guide 51 is slidably provided opposite to the tatami bed guide 51, which slides in the width direction of the tatami bed A by means of a fluid cylinder area, and is placed on the roller 1. Tatami floor A
When the tatami floor A is supplied, the tatami floor A is pressed against the fixed tatami floor guy 1, and then immediately retreated to the position shown in Fig. F.

In this structure, as shown in FIGS. 1 and 2, the tatami pusher of the outer connecting rod 33 engages with the rear end of the tatami bed A, and the rear end of the preceding tatami bed B. When the tatami pusher rod of the inner connecting shaft is engaged, the sewing machine motor 16 shown in FIG. 3 is driven, and the first electromagnetic clutch 9 and the second
The electromagnetic clutch 24 and the third electromagnetic clutch I also operate to drive both the outer sprocket shaft 4 and the inner sprocket shaft 6, and the sewing machine 15 tatifies in synchronization with the needle movement of the feather. The sewing machine 15 then reverse stitches the tatami floor A passing through the cover. If the side surface of the tatami floor A on the side facing the sliding sewing machine is straightened and the width of the tatami floor A fluctuates, the sliding sewing machine wing will not slide in the width direction according to the changing device. The above-mentioned reverse stitching is then performed.

Next, as shown in FIG. 8, when the rear end of the tatami bed A being transported by the outer chain 2 reaches the sewing machine needle (not shown) K, the first electromagnetic clutch 9 is disconnected.
The intermittent feeding of the outer chain 2 is stopped and the tacking stitching is started, and at the same time the inner connecting rod I rotates downward and the end protrusion 39b protruding from the right end surface of the inner connecting rod I is activated.
[11] As a result, the continuous feed motor 29 (see FIG. 8) is driven and the second electromagnetic clutch train is disconnected, so that the inner chain 3 is converted from intermittent feed to continuous feed. The inner connecting rod is moved at high speed to the left tatami supply side.

The distance between the inner connecting rods reaches below the sprocket shaft 5.7 at the end of the tatami supply side (see Figure 9), the end surface protrusion a of the inner connecting tomb
When llb contacts the limit switch 4 (b), the connection of the third electromagnetic clutch is cut off, and the rotation of the continuous feeding motor 4 is stopped, thereby stopping the continuous feeding of the inner chain 3.

As mentioned above, the back end of the tatami floor A is sewn with a tacking stitch, and the subsequent tatami floor C is fed onto the roller 1 on the tatami supply side at 111, where the inner chain 3 is continuously fed. , the fluid cylinder 52 (see FIG. 1) is operated, and the sliding tatami floor kite 5 is activated.
1 makes one reciprocation in the width direction, the tatami bed C comes into pressure contact with the fixed tatami bed kite fence, and the tatami bed C is positioned. Afterwards,
The second electromagnetic clutch U and the third electromagnetic clutch are actuated, and the intermittent feeding of the inner chain 8 begins, and the inner connecting rod rotates above the sprocket shaft 5.7 on the tatami supply side to press the tatami. ↓) It engages with the rear end of the tatami floor C, and then the tatami floor C is intermittently fed. Then, as shown in Fig. C, when the front end of the tatami bed C reaches the sewing machine gap, the first electromagnetic clutch 9 is activated again, and the intermittent feeding of the tatami bed A by the outer chain 2 is started again, and the subsequent Backstitching is applied to the tatami floor C. Note that the tatami floor A is sent out to the right, and the outer connecting rod that engages with the tatami floor A rotates downward to close the limit switch 37a, and the rear end σ of the following tatami floor C - When sewing starts 1, the continuous feed motor 4 is driven, and at the same time the first electromagnetic clutch 9 and the second electromagnetic clutch are connected, and the outer chain 2 is continuously fed, and the outer chain 2 is continuously fed. When the connecting rod reaches the supply end and the limit switch 37b is closed, the operation is stopped.

In accordance with the above embodiment ICJ, 3, flat stitching can be performed by using a flat stitching sewing machine as the stationary sewing machine 15 and the sliding sewing machine 44, and the above sewing machine]5.
By using a stilt sewing machine as the 44, setting the intervals widely, and transferring the tatami floor in the same width direction, stilt stitching can be performed. Furthermore, instead of the rollers, a plurality of long sliding rails or tables may be provided in the direction of transport of the tatami bed A to serve as a guide support for the rock bed. Further, the feed conversion mechanism 8 exchanges the position i'rl of the continuous rotating shaft n and the intermediate shaft n, and moves the first intermediate sprocket 12 between the ratchet 11 and the first '@i magnetic clutch 9 at r+t+
To [i! Don't do i Sin and change accordingly! Or by increasing the number of electromagnetic clutches, it is possible to feed one chain 11 and 3σ) without feeding 11 on one side, and then continuously feeding 11 and 3σ on the other. You can do it like this. Also, intermittent 11.2 turns 1IIIl+1]
You may install a ratchet instead.

As explained above, this invention/guidance☆To have 1&
The tatami floor of 11iL is rotated once in one direction by the E exit of 1k.1 inner fI: 111age and a pair of outer chains are used to feed the exchange H(・r), so the conventional rack is reciprocated. The operating rate of the sewing machine is -1 compared to
[, Moreover, it is a simple structure.

[Brief explanation of drawings]

FIG. 1 is a 4'III view of an embodiment of the invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a 11th view of the feed conversion mechanism.
Figure 4 is a plan view of the first side connecting door, and Figure 5 is the V of Figure 41.
- V line sectional view, Figure 6 is the inner connecting rod length) E side view, Figure 7
The figures are plan views of the sliding mechanism of a sliding sewing machine, Figures 8 to M.
] The figure is a side view to explain the operating sequence (A, H, C.
, 2 outer chain, 3 inner chain, 15.44:
Sewing machine, O: Keto side connecting rod, 34 Tatami pusher, Atsushi, inner connection outside 1. IO two tatami pushing salary. Patent applicant Kyokuto Sanki Co., Ltd. Agent Patent attorney Takeshi Sakano Daikichi 1) Tijl

Claims (1)

[Scope of Claims] [1] A tatami sewing machine capable of simultaneously performing stile stitching, flat stitching, or return mending on the left and right sides of the tatami floor by sewing machines on both the left and right sides in the transport direction while moving the tatami floor straight in the width direction or length direction. A guide support for the tatami floor is provided along the transport direction of the tatami floor, and endless chains are provided in parallel in two rows on each of the left and right sides of the guide support. An inner connecting rod and an outer connecting rod that straddle the guide support are fixed to a pair of inner chains and a pair of outer chains located outside, respectively, and the guide supports are attached to these inner connecting rods and outer connecting rods. Attach a tatami pushing rod that engages with the rear end of the tatami floor on the table, drive the above inner chain and outer chain individually in one direction, and alternately tatami the tatami pusher of the inner chain and the tatami pusher of the outer chain. A tatami bed transfer device for a tatami sewing machine, characterized in that the tatami bed transfer device engages with the rear end of the bed to transfer the tatami bed. [2] The inner chain and the outer chain rotate intermittently to transfer the tatami bed in synchronization with the movement of the sewing machine needle, and move the tatami pusher disengaged from the tatami bed to the tatami bed supply side end. A tatami bed transfer device for a tatami III landing machine according to claim 1, which performs continuous rotation for quick return to tatami mat floor. (8) A hollow shaft to which the left and right chain sprockets for driving the inner chain are fixed is rotatably fitted to the outer drive shaft to which the left and right chain sprockets for driving the outer chain are fixed. The drive source for intermittent feed and the drive source for continuous feed are connected to the outer drive shaft and inner drive shaft by electromagnetic clutches. A tatami bed transfer device for a tatami sewing machine according to claim 1, which is connected through a tatami mat sewing machine. [4] The tatami sewing machine according to any one of claims 1 to 3, wherein one of the left and right sewing machines is fixed to the frame A, and the other is slidable in the width direction. The machine's tatami floor transfer device.