JPH0251640B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention particularly relates to an apparatus for continuously folding works such as ironed yukatas and gowns at high speed.

(Prior Art) Since yukatas and gowns have sleeves, folding them requires a member that performs the folding operation in at least two orthogonal directions, and is hardly mechanized. This type of device is known as Utility Model Publication No. 16371/1983.

(Technical Issues) As can be understood from the above-mentioned device, conventional folding devices have a structure that requires many stopping and reversing operations, which limits the ability to increase speed. It is very difficult to add mechanisms.

An object of the present invention is to provide a yukata that allows the workpiece to flow as continuously as possible, and that allows the folding operation in the direction orthogonal to the workpiece to be performed at high speed during the movement of the workpiece, thereby obtaining a high-quality folded product. An object of the present invention is to provide a continuous folding device for gowns.

Another object of the present invention is to provide a folding device having a structure that allows the work to be easily bypassed in the event of a problem such as cloth jamming. A versatile folding device that can handle workpieces that do not have any original material will be realized.

(Technical means) The purpose is to move the workpieces, which have been placed with the sleeves on the left and right sides of the movement direction and the collars upward, to the second conveyor 2.
The first conveyor 10 rotates in the forward direction to introduce the workpieces into the first conveyor 10, and the workpieces received from the first conveyor are continuously installed with a workpiece folding gap 2 at the rear of the conveyor 10. The second conveyor 20 rotates in the direction and reverses after folding the sleeves.
It has a pair of sleeve folding gauges 32 that extend forward from the rear part of the conveyor and are arranged approximately parallel to the crease on the sleeve of the workpiece, and the left and right sleeves are folded inside the upper surface of the workpiece body based on the gauges. Therefore, a pair of sleeve folding arms 33 move upward and inward from the bottom of the conveyor.
a sleeve folding mechanism 30 comprising a sleeve folding mechanism 30, a first bi-folding knife 71 which folds a substantially central part of the workpiece downwards in the folding gap 2 when the second conveyor is reversed; , a third conveyor 40 consisting of three parallel parts that supports both sides of the center of the work body and rotates in the forward direction; a third conveyor 40 that pushes up both left and right sides of the work from between the three parts; A body folding mechanism 50 includes body folding members 54 and 55 that fold the right and left sides of the workpiece upwardly and inwardly into three along a pair of body folding gauges 51 installed along the moving direction. A fourth conveyor 6 is installed continuously with a workpiece folding gap 4 at the end thereof, and rotates in the same direction as the lower surface of the third conveyor.
0 and a second bi-folding knife 72 provided in each workpiece folding interval 4 of the third and fourth conveyors to push the substantially central part of the workpiece downward from above and fold it in half; This is achieved by a continuous folding device for gowns.

The sleeve folding mechanism 30 and the body folding mechanism 40 fold the workpiece in the width direction, and the sleeve folding gauge and the body folding gauge press the sleeve at respective locations parallel to the moving direction for this purpose.

On the other hand, the bi-folding knives 71 and 72 are used to fold a workpiece in two in the longitudinal direction, and both have first and second conveyors whose ends are placed close to each other.
Push the work toward folding intervals 2 and 4. Therefore, the first conveyor 10, the third conveyor 40, and the fourth conveyor 60, excluding the second conveyor 20, are arranged in a bent shape, thereby realizing a continuous flow of works and miniaturization of the apparatus.

(Function) The work is transferred from the first conveyor 10 to the second conveyor 2.
0, and undergoes the sleeve folding operation by the sleeve folding mechanism 30 without stopping, but after that, it is folded in two in the longitudinal direction, body folded in the width direction (trifold in the embodiment),
It continues to flow until it is folded in half in the longitudinal direction again and then transported out. That is, the sleeve folding mechanism 30 and other mechanisms do not obstruct folding or movement of the workpiece at all.

Two folding knives 71 and 72 face the first and second folding gaps 2 and 4 set at the respective ends of the third conveyor 40 arranged diagonally, and fold the workpieces in the moving direction of the workpieces. Since it acts to push the bent part, the workpiece flows naturally and does not lose its shape.

(Example) An explanation will be given with reference to the drawings. The first conveyor 10 is installed at the front upper part of the device main body 1, and the second conveyor 10 is installed behind it.
A conveyor 20 is provided, and a second conveyor 2
The front end of the conveyor 10 is located slightly lower than the rear end of the first conveyor 10, and there is a first folding interval of the workpiece W between the two ends.
is formed. The second conveyor 20 rotates to the right in FIG. 2 like the first conveyor 10 until the workpiece is transported to the sleeve folding position, but rotates in the opposite direction after folding the sleeves. Work position detection elements 3 ₁ to 3 ₆ are arranged at appropriate locations to confirm the passage (approach), stop, etc. of the work W. 3 ₁ is for high/low speed switching of the first conveyor, 3 ₂ is for bifold stop, 3 ₃ is for body folding, 3 ₄ and 3 ₅ are for the second bifold calculator, and 3 ₆ is for detection of falling plate. With Motoko,
For example, a photoelectric switch is used.

The sleeve folding mechanism 30 has a frame member 3 installed on the main body 1 above the rear part of the second conveyor 20 across the conveyor.
1, a pair of left and right sleeve folding gauges 32, 32, which are located at the base of the sleeve S and press the sleeve in parallel to the moving direction, are provided on the conveyor and protrude from the rear in parallel with the work entry direction. On the other hand, a pair of left and right sleeve folding arms 3 are located between the conveyor belts under the sleeves S.
3, 33, vertical cylinders 34, 34 that move the arm vertically, and folding cylinders 35, 35 that move the cylinder horizontally. It is preferable that the left and right side parts of the second conveyor 20 on which the sleeves are placed are higher than the center part on which the body of the work is placed (see FIG. 1).

The second conveyor 20 also constitutes a bypass mechanism 88 whose rear part is lowered around the front end roll 21 and moves away from the sleeve folding mechanism 30, allowing the workpiece W to pass in the forward direction (see the chain line in FIG. 2). A bi-folding knife 71 is provided as a first bi-folding mechanism near the first folding interval 2 of the first and second conveyors 10 and 20, and the knife 71
is pivotally supported by the main body 1 so that the arcuate tip is inserted into the folding gap 2 from the first conveyor 10 side over the step t. 73 is a frame member 74 of the bifold knife 71
75 indicates an actuator.

The third conveyor 40 has its rear end in the workpiece advancing direction located close to the lower part of the folding gap 2, and its front end inclined downward toward the lower fourth conveyor 60. It consists of three parts: a central part 41 on which the center part is placed, and left and right parts 42 and 43 arranged in parallel on both sides so that the left and right side parts of the workpiece are placed (see Figures 1 and 5c). 41 is set lower than each of the left and right portions 42 and 43, and is formed narrower than the width of the work body.

The body folding mechanism 50 is installed in a pair on the left and right between the third conveyor 3 parts, and includes body folding gauges 51, 51 suspended along the rotation direction on both sides of the upper surface of the conveyor central part 41, and each left and right part 42, Actuators 52 and 53 are disposed below 43 and protrude upward from the conveyor from between the respective parts. 54,55
is a folding member attached to the tips of the actuators 52 and 53, and is set to be slightly longer than the total length of the workpiece W.

The fourth conveyor 60 is located lower than the rear end of the third conveyor 40, and is provided so that a second folding gap 4 is formed with the same level difference as the first folding gap 2. There is. 64 indicates a sliding plate.

The bi-folding knife 72, which is the second bi-folding mechanism, has an arcuate tip extending from the third conveyor 40 side to the rolls 61, 6.
It is pivotally supported so as to be inserted into the second folding gap 4 between the two, and is driven by an actuator 75.
74 indicates its pivot point. The fourth conveyor 60 is inclined to the same extent as the rear inclined part 63 of the third conveyor 40, and also serves to flatten the final product and send it to a dropping plate 81 provided at the rear end.

The drop plate 8 is a part of the stack mechanism 80 and opens downward to drop the finished product onto the stack conveyor 82, which is sent out of the apparatus by the carry-out conveyor 83.

Each of the above operating parts is driven by a control circuit 90 as shown in FIG. In the figure, 91 is an air purifier unit, 92 is an air tank, 93 is a control valve for the sleeve folding mechanism 30, 94 is a control valve for the first bifold arm 71, 95 ₁ and 95 ₂ are control valves for the body folding mechanism 50, 9
6 is a control valve for the second bifold arm 72; 97 is a control valve for driving the actuator 84 of the dropping plate 81;
Further, 98 is the actuator 8 of the second conveyor 20.
5 is a control valve for driving and bypassing, and 99 is a switching valve for blowing air during sleeve folding and body folding. Each operating part is shown in FIG. 7 with the same reference numeral as in FIGS. 1-6. The above circuit and other operating parts are controlled by a computer (not shown) to perform the following operations.

Operation ○a The workpiece W is supplied from an ironer or the like in the previous stage, and is conveyed by the first conveyor 10 and the second conveyor 20 (Fig. 5a).

○B The sleeve folding arm 33 operates against the workpiece W,
The sleeve S is folded inward using the sleeve folding gauge 32 as a crease (FIG. 1b). At this time, the center of the workpiece is near the first folding interval 2.

○C After the sleeve folding is completed, the second conveyor 20 rotates in the opposite direction and the first conveyor 10 rotates in the forward direction, so when the central part of the workpiece is pushed with the bi-folding knife 71, the workpiece W is caught between both conveyors. In this way, it is folded in half (see figure c).

○D Next, the workpiece W is carried by the third conveyor 40, and both left and right parts are folded at the center of the workpiece above the central part 41 by the folding mechanism 50 (d in the same figure). Figure 6 b-1, b-2, c-
See 1, c-2.

○ E After that, the workpiece W crosses the third conveyor 40 and reaches the sliding plate 64, and the second folding knife 72 pushes the workpiece at the timing when the middle is located in the second folding interval 4. A second folding is performed between the fourth conveyor 60 (e). See Figure 6d.

○F The workpiece that has become the final product is sent onto the dropping plate 81 (Fig. 6 e), and is transferred to the stack conveyor 82 below.
(Fig. 5 f, Fig. 6 f)
-1, f-2).

In FIG. 5, the state in which the workpiece W is folded is shown in stages at the lower left of a to f. According to the illustration, the final product is a yukata that is folded to about one-third the width and one-fourth the length.

(Effects) Since the present invention is constructed and operates as described above, the workpiece only needs to be temporarily stopped at the time of the first sleeve folding, and thereafter it can be folded while being continuously conveyed by the conveyor, so high-speed finishing is possible. This has the effect that folding a workpiece having a complicated shape and having sleeves can be done extremely easily. In particular, the device of the present invention is configured to fold from top to bottom through all the folding and folding operations for a workpiece input with the collar facing up, and for this reason, the collar is folded inwardly and inwardly. It can be folded as if wrapping it, so the work can proceed smoothly and accurately, and high quality folded products can be obtained with high efficiency.

[Brief explanation of drawings]

The drawings show an embodiment of the continuous folding device for yukata and gowns according to the present invention, and FIG. 1 is a perspective view, FIG. 2 is a side view of various operating parts including the conveyor, and FIG. a is a plan view of the sleeve folding mechanism, b is an explanatory side view, FIG. 4 a is a perspective view, b is an explanatory side view, FIG. Figures a to f are process explanatory diagrams, Figure 6 a-
1 to f-2 are operation explanatory diagrams in the order of steps, and FIG. 7 is a circuit diagram. 2, 4...First and second folding interval, 10...First conveyor, 20...Second conveyor, 30...Sleeve folding mechanism, 4
0...Third conveyor, 50...Body folding mechanism, 60...Fourth
Conveyor, 71, 72...first and second bi-folding knives, 80...stack mechanism, 88...bypass mechanism.

Claims (1)

[Scope of Claims] 1. The first conveyor 10 rotates in the forward direction in order to introduce the work input with the sleeves on the left and right in the movement direction and the collar facing up into the second conveyor 20, and the work folding device is installed at the rear of the first conveyor 10. A second conveyor 20 is installed continuously with a gap of 2, and rotates in the same direction as the first conveyor until the work received from the first conveyor reaches a fixed position, and then reverses after folding the sleeves. It has a pair of sleeve folding gauges 32 that extend forward from the rear part and are arranged approximately parallel to the crease on the sleeve of the workpiece. A sleeve folding mechanism 30 that includes a pair of sleeve folding arms 33 that move upward and inward from the bottom, and a first bifold mechanism that folds approximately the center of the work toward the bottom of the folding interval 2 when the second conveyor is reversed. A third conveyor 40 consisting of three parallel parts, which is disposed diagonally below the folding gap and rotates in the forward direction while supporting the center and left and right sides of the work body, respectively, between the three parts. A pair of body bending gauges 5 are installed along the movement direction above the boundaries of the three parts, pushing up both the left and right sides of the workpiece.
1, a body folding mechanism 50 is provided with body folding members 54 and 55 that fold the right and left sides of the work upwardly and inwardly into three, and a work folding gap 4 is provided at the lower end of the third conveyor to continuously convey the workpiece. A fourth conveyor 60 is installed in the same direction and rotates in the same direction as the lower surface of the third conveyor.
And between each workpiece folding of the third and fourth conveyors〓
A continuous folding device for yukatas and gowns, which is constructed of a second bifold knife 72 provided for folding the workpiece in half by pushing the substantially central part of the workpiece downward from above. 2. The continuous folding device for yukatas and gowns according to claim 1, wherein the front end of the second conveyor 20 is set lower than the rear end of the first conveyor 10 during the work folding interval. 3. The third conveyor 40 comprises a central portion 41 having a width narrower than the width of the workpieces on the conveyor, and left and right portions 42 and 43 arranged in parallel on both sides of the central portion 41. Continuous folding device. 4. The continuous folding device for yukatas and gowns according to claim 1, further comprising a stack mechanism 80 having a final product dropping plate 81 connected to the rear of the fourth conveyor 60. 5. The continuous folding of yukata and gowns according to claim 1, wherein the second conveyor 20 is provided so that at least its rear end can be lowered, and constitutes a bypass mechanism 88 for passing the work in the forward rotation direction of the second conveyor. Tatami device.