JPH0583359B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a slat cutting device for manufacturing slats for blinds.

(Prior Art) Conventionally, slats for blinds have been made by continuously forming long thin aluminum plates and cutting them into predetermined lengths using a slat cutting device. The cutting device uses a feed roller driven by a motor to feed the slat material, and after feeding the slat material a predetermined length, the cutting machine is activated to cut the slat material to a predetermined length. A punching machine is operated on both sides, that is, the rear end of the cut slat and the tip of the next cut slat, to punch an insertion hole through which the lifting cord is inserted.

(Problems to be Solved by the Invention) In the above-mentioned slat cutting apparatus, if the cutting machine and each perforating machine are driven by separate driving means, there is a problem in that the manufacturing cost becomes high. Further, when the cutting machine and each punching machine are driven by a common driving means, the distance between the cutting machine and the punching machines on both sides cannot be adjusted. Therefore, since the lifting cord insertion holes are always drilled at positions separated by a certain distance from both ends of the slat, there is a problem in that the insertion holes are placed at inappropriate positions when cutting short slats.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention sequentially moves the slats using a transfer device, and as the slats are transferred, the slats have a desired length. In a slat cutting device that simultaneously drills lifting cord insertion holes on both sides of the cut portion, drilling dies 27 and 28 are arranged on the frame 12 before and after the cutting die 26 in the direction of transport of the slat material 6. The driving means 16 drives each mold 26, 27, 28.
It can be driven by a common drive plate 18 driven by
Adjustment means 2 for adjusting the position of both drilling molds 27 and 28 on the frame 12 in the direction of transport of the slat material 6
1, 23, and 25 are provided.

(Function) With the above means, the molds 26, 27, 28 are operated synchronously by the common drive plate 18, and the positions of the punching molds 27, 28 can be adjusted with respect to the cutting mold 26 by the adjustment means. Become.

(Embodiment) An embodiment embodying the present invention will be described below with reference to the drawings. A slat manufacturing apparatus 1 includes a forming apparatus 2 for curve forming a plate-shaped slat material,
A slat cutting device 3 that cuts the slat material molded by the molding device 2 into a predetermined length and punches an insertion hole for inserting the lifting cord, and a control for controlling the operation of the slat cutting device 3. It is composed of a device 4.

A slat material 6 made of a long continuous aluminum plate is attached to the coil receiver 5 of the molding device 2.
A pair of forming rollers 7a and 7b for curve-forming the slat material 6 are provided at the upper part of the forming device 2, and are rotationally driven by a drive motor in the forming device 2, which will be described later. The slat material 6 drawn out from the coil receiver 5 is guided by a plurality of guide rollers 8 to forming rollers 7a, 7b, and is pinched and formed into a curve by the forming rollers 7a, 7b.

On one side of the slat cutting device 3, there is a pair of feed rollers 9a, for feeding the slat material 6 formed by forming rollers 7a, 7b to a cutting machine, which will be described later.
9b is provided. The feed rollers 9a, 9
b is a step motor 5, which will be described later, which is arranged behind it.
0, forming rollers 7a, 7
The slat material 6 molded by the guide roller 10 is guided to the same feed rollers 9a and 9b by a pair of guide rollers 10. And forming rollers 7a, 7b
The slat material 6 molded by the feed roller 9
A and 9b send the paper toward a cutting machine 11, which will be described later, and the amount of feed is set based on the amount of rotation of the feed rollers 9a and 9b, that is, the rotation angle of the step motor.

The slat cutting device 3 includes the feed roller 9a,
A cutting machine 11 for cutting the slat material 6 fed from the slat material 6 into a predetermined length is placed behind the feed rollers 9a and 9b (the first
(on the right in the figure). This cutting machine 11 will be explained according to FIGS. 2 and 3. The frame 12 of the cutting machine 11 has an upper plate 13 and a lower plate 14 connected by a vertical plate 15, and a pump to be described later is mounted on the upper surface of the upper plate 13. Two air cylinders 16 operated by compressed air sent from 48 are fixed, and the output shafts 17 of the air cylinders 16 each pass through the upper plate 13. Output shaft 17 of both air cylinders 16
A common drive plate 18 is fixed horizontally to the lower end, and is adapted to move up and down as the output shaft 17 operates.

The lower plate 14 of the frame 12 is fixed at both left and right ends in FIG. 2 to a support base 20 by fixing plates 19 as shown in FIG. 3. The front holder 21 located at the front end of the lower plate 14 has a large number of fixing bolts 22 and 23 attached to it in two stages, upper and lower.
As shown in FIG. 3, a protrusion 24 is formed on the upper part of the protrusion 24, which protrudes rearward at a distance that allows a seat plate 29, which will be described later, to be inserted through the lower plate 14.
Furthermore, a rear holder 25 having an inverted L-shaped cross section is provided at the rear of the lower plate 14, facing the protrusion 24 thereof.

As shown in FIG. 2, the lower plate 14 of the frame 12
A cutting die 26 is arranged at the upper left-right center, and punching dies 27 and 28 are arranged on both sides thereof. As shown in FIG. 3, these molds 26, 27, and 28 are supported so that the front and rear ends of a seat plate 29 can move horizontally between the front holder 21 and the rear holder 25. By screwing in the upper fixing bolt 23 of holder 21, it is fixed between both holders 21 and 25.
At this time, in order to set the distance between the cutting die 26 and the punching dies 27 and 28 on both sides thereof, an adjustment plate 30 as shown in FIG. 4 is prepared, and the A dimension portion of this adjustment plate 30 is Alternatively, by setting the distance between each mold with the adjustment plate 30 in between, such as the B dimension part, it becomes possible to accurately set the distance between the cutting mold 26 and the punching molds 27 and 28. There is.

At the top of each mold 26, 27, 28, there is a receiving plate 3 which is normally biased upward by a coil spring 31.
2 is in contact with the drive plate 18. Therefore, as shown in FIG. 2, the air cylinder 16 is operated with the slat material 6 inserted into each of the molds 26, 27, and 28, and the drive plate 18 is moved downward against the biasing force of the coil spring 31. When moved to, each receiving plate 32
is moved downward and the respective molds 26, 27, 28 are operated in synchronization, and the cutting mold 26 cuts the slat material 6.
is cut to form the slat 33, and at the same time, the punching dies 27, 28 are inserted before and after the cut portion.
An insertion hole for the lifting cord is bored through the opening.

The support stand 20 is attached to the cutting machine 1 as shown in FIG.
A plurality of support members 34 are provided on the support base 20, extending from the support member 1 in the direction in which the slit material 6 is moved. A plurality of push rods 35 for pushing cut slats 33 forward from above the support member 34 are provided at appropriate positions on the support base 20, and each push rod 35 is operated synchronously by an air cylinder (not shown). There is. Further, a plurality of slat receivers 36 are provided at the front of the support base 20, so that the slats 33 pushed out from above the support member 34 by the pushing rod 35 can be temporarily stored.

On the support stand 20, on the moving path of the slat material 6, there is an air cylinder 37 similar to the cutting machine 11.
A punching machine 38 is installed which is driven by. This punching machine 38 includes the punching die 27 of the cutting machine 11.
A mold similar to the above is installed, and when a lifting cord insertion hole is required in the central part in addition to both ends of the slat 33, it operates in synchronization with the cutting machine 11 to drill the same insertion hole. There is. And this drilling machine 3
8 is provided so that its position on the support base 20 can be adjusted in the left-right direction in FIG. It's becoming like that.

A large number of operation switches are provided on the front surface of the control device 4. As shown in FIG. 5, the operation switch includes an input key 39 for inputting the length of the slat 33, a display section 40 for displaying the input value by the input key 39, and a display section 40 for inputting the height of the blind. An input key 41, a display section 42 that displays the input value by the input key 41, and a power switch 4 for supplying power to the slat manufacturing apparatus 1.
3, a start switch 44 for starting the operation of the slat manufacturing apparatus 1, and a stop switch 45 for stopping the operation.
It consists of a drilling machine operation switch 46 for selecting whether or not to operate the drilling machine 38.

Next, the electrical configuration of the control device 4 configured as described above will be explained based on FIG. 6.
Output signals based on the operations of 9 and 41 are input to a central processing unit (hereinafter referred to as CPU) 47 within the control device 4. Further, the power switch 43 is connected to the cutting machine 1.
1. It is also connected to a pump 48 that sends compressed air to each air cylinder that operates the extrusion rod 35 and the punching machine 38, and a drive motor 49 that drives the forming rollers 7a and 7b, and the power is turned on to each device by its operation. It is becoming more and more common.

A step motor 50 for driving the feed rollers 9a and 9b is connected to the CPU 47 via a drive circuit 51, and a valve device 52 is also connected thereto. The valve device 52 is connected to the pump 48.
and the air cylinder 1 of the cutting machine 11 and the punching machine 38, etc.
6 and 37, and the pump 48 and each air cylinder 1 are connected based on the output signal from the CPU 47.
The opening and closing of the pneumatic circuit between 6 and 37 is controlled.

A program memory 53 connected to the CPU 47 is constituted by a read-only memory (ROM), in which a program for operating the CPU 47 is stored in advance, and the CPU 47 operates based on the program.

Then, by pressing the input keys 39 and 41, the slat 3
Once the length of 3 and the height of the blind are set,
The CPU 47 rotates the step motor 50 by a predetermined angle by outputting a predetermined number of pulse signals to the drive circuit based on a preset program, moves the slat material 6 by a predetermined length by the feed rollers 9a and 9b, and then A signal is output to the valve device 52 to operate the cutting machine 11 or the cutting machine 11 and the drilling machine 38. By repeating this operation, a predetermined number of slats 33 corresponding to the input height of the blind are cut.

Next, the operation of the slat manufacturing apparatus 1 configured as described above will be explained.

Now, before starting the slat manufacturing apparatus 1, it is necessary to input the height of the blind to be assembled and the length of the slat 33. Therefore,
When the above conditions are input using the input keys 39 and 41 of the control device 4 after operating the power switch 43, the CPU
Reference numeral 47 designates the slats of the blind to be assembled based on the slat width of 15 mm that is suitable for the slat manufacturing apparatus 1 and the entered value of the height of the blind, according to a program stored in the program memory 53 in advance. Calculate the number of stages.

For example, if the slats of the blind to be assembled are long enough to require a lifting cord insertion hole in the center, the punching machine operation switch 46 is operated to synchronize the punching machine 38 with the cutting machine 11. At the same time, the drilling machine 38
to the drilling position of the insertion hole.

In addition, when changing the position of the elevating cord insertion hole from both ends of the slat depending on the length of the slat to be cut, loosen the fixing bolt 23 at the upper stage of the front holder 21 and lower the drilling molds 27 and 28. It is made movable on the plate 14, and in this state, the cutting die 26 and both punching die 27, 2 are moved using the adjustment plate 30.
8 and adjust the interval as desired, and then tighten the fixing bolt 23 again.

In this state, when the operator presses the start switch 44, the CPU 47 outputs a number of pulse signals corresponding to the input slat length to the drive circuit 51 of the step motor 50 to operate the step motor 50 at a predetermined angle. , the feed rollers 9a and 9b are rotated to feed the slat material 6 to the right in FIG. Then, when the step motor 50 is operated at a predetermined angle with the number of pulses based on the length of the slat, next
By outputting a signal to the CPU 47 and the valve device 52 to operate the cutting device 11 and the perforator 38 simultaneously, the cutting die 26 cuts the slat 33 of a predetermined length from the slat material 6, and at the same time the perforator 38 and the perforator 33 An insertion hole is drilled in the center, and the cutting die 26 is inserted into the rear end (left end in Fig. 1) of the slat 33 and the tip of the slat to be cut next using the piercing dies 27 and 28 on both sides of the cutting die 26. Drill a hole.

When the cutting machine 11 and the punching machine 38 are operated to form a slat 33 of a predetermined length with an insertion hole, the CPU 47 then outputs a signal to the valve device 52 to push the push rod 35 forward using the air cylinder. The slat 33 on the support member 34 is pushed down onto the slat receiver 36.

One slat 33 is manufactured by the above operations,
Following this operation, the CPU 47 again outputs a pulse signal to the drive circuit 51 to move the slat material 6 and repeat the above operation. When the pre-calculated number of slats are manufactured in this way, the CPU 47 stops the operation of each device.

As described above, in this slat manufacturing apparatus 1, the common air cylinder 16 drives the cutting mold 26 for cutting the slat material 6 and the punching molds 27 and 28 for punching lifting cord insertion holes on both sides of the cutting portion. Therefore, the respective molds 26, 27, and 28 can be reliably synchronized with a simple configuration. By loosening the fixing bolts 23, the distance between the drilling molds 27 and 28 and the cutting mold 26 can be set as desired within the range of the lower plate 14 and the driving plate 18, so that particularly short slats can be When forming the cord, the distance between both ends of the slat and the lifting cord insertion hole can be set appropriately.

Effects of the Invention As detailed above, this invention provides a cutting die 2
6 and the punching molds 27 and 28 can be operated synchronously with a simple configuration, and the punching mold 2
7 and 28 relative to the cutting die 26 to change the distance from both ends of the slats to the lifting cord insertion hole, an excellent effect is achieved in which slats of different lengths can be cut without any trouble. Demonstrate.

[Brief explanation of the drawing]

Fig. 1 is a front view of a slat manufacturing device embodying this invention, Fig. 2 is a front view of its cutting machine, and Fig. 3 is a front view of a slat manufacturing device embodying the present invention.
4 is a perspective view of the adjustment plate, FIG. 5 is a front view of the control device, and FIG. 6 is a block diagram showing the electrical configuration and pneumatic circuit configuration of the slat manufacturing device. . Slat material...6, Cutting machine...11, Frame...12, Air cylinder...16, Drive plate...1
8, Front holder...21, Fixing bolt...2
3. Rear holder...25. Cutting mold...2
6. Punching mold...27,28.

Claims (1)

[Scope of Claims] 1 Slat cutting in which the slat material is sequentially moved by a transfer device, and as the slat material is transferred, a slat of a desired length is cut, and at the same time, lifting cord insertion holes are drilled on both sides of the cut portion. In the apparatus, on the frame 12, there are punching molds 27 and
28, each mold 26, 27, 28 can be driven by a common drive plate 18 driven by the drive means 16, and both punching molds 27, 28 are mounted on the frame 12 in the direction of transport of the slat material 6. A slat cutting device for a blind, characterized in that adjustment means 21, 23, and 25 are provided to enable position adjustment.