JPS6365500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slotter for making incisions in sheets such as cardboard base paper.

Conventional slotters transport paper by sandwiching it between the circumferential surfaces of the blade-mounting tool support and the blade-receiving tool support, both of which are attached to the upper and lower rotating shafts. The spacing between the upper and lower rotation axes must be adjusted using In the case of high-variety, low-volume production, the thickness of paper materials varies, so it is necessary to frequently adjust the spacing between the vertical rotating shafts, which is one of the causes of reduced production efficiency. In addition, since the slotter may not be used depending on the product, it is necessary to move the slotter in and out of the processing line according to the processing specifications, but reconfiguring the processing line for this purpose is also one of the causes of reducing efficiency in high-mix, low-volume production. It was hot.

The purpose of the present invention is to provide a slotter that can be used as a slotter to help improve work efficiency in high-mix, low-volume production. To provide a slotter that does not require adjustment of the interval between vertical rotation shafts.

In order to achieve the above object, the gist of the present invention is that a suction belt exclusively used for conveying paper material is attached to the slotter, and the tool support stand is removed from the role of conveying the paper material. Also, a device is provided to lift the upper rotating shaft higher than before so that it can freely pass through the paper slotter.

The slotter of the present invention will be explained based on an embodiment shown in the drawings. As shown in FIGS. 1 and 2, the lifting guide 2 is fixed to the left and right side frames 1,
Fit the slider 3 into the lifting guide so that it can move up and down,
The slider is fixed to the elevating frame 4. The lower rotating shaft 5 is attached to the side frame 1, and the elevating frame 4 is attached to the side frame 1.
Three upper rotating shafts 6 are supported on each side.
A lower rotary shaft 5 is directly connected to the lower drive shaft of a drive section 7 provided on one side frame 1, and an upper rotary shaft 6 is connected to the upper drive shaft via a Schmitt coupling 8. A base 10 is placed in the center of a top frame 9 that connects the left and right lifting frames 4, and a motor 11 is attached to the base. A horizontal shaft 12 extending left and right is supported on a base 10, and rotation of a motor 11 is transmitted to the horizontal shaft 12 via a transmission mechanism 13.
Both ends of the horizontal shaft 12 are connected to input shafts of left and right transmissions 14 attached to the lifting frame 4. Screw shaft 15 hanging from the transmission 14 as an output shaft
is screwed into a screw bearing seat 16 fixed to the side frame 1.

Five blade attachment tool supports 17 and blade receiver tool supports 1 are provided on the upper rotating shaft 6 and the lower rotating shaft 5, respectively.
Install 8. Left and right tool support stand 1 excluding the center
7 and 18 can move left and right on their respective axes. Shifter shafts 19 and 20 are supported by the side frame 1 and the elevating frame 4, respectively. Install the drive motor 21 on the left and right lifting frames 4,
Shifter shafts 19, 2 via chain transmission mechanism 22
0 are rotated synchronously. Shifters 23 and 24 are screw-fitted to each shifter shaft, and the shifters restrain the blade attachment tool support 17 and the blade receiver tool support 18 in the axial direction, respectively.

Conveyor bracket 26 on base frame 25
is fixed, and the support frame 31 of the suction belt conveyor device 30 is detachably fixed to the conveyor bracket. The belt 32 of the suction belt conveyor 30 runs at right angles to the lower rotating shaft 5, and its upper surface is located at the same height as the tool support 18. The belt drive shaft 33 is supported by the left and right side frames 1, and the drive unit 7
The belt 32 is caused to travel at the same circumferential speed as the tool support base 18 in response to rotational transmission from the tool support base 18.

As shown in FIG.
It supports the tension pulleys 36, 37, 38 and the drive pulley 39, and also supports the front and rear guide pulleys 3.
The suction box 40 is attached to the support frame 31 between 4 and 35. Suction box 40 is connected via a telescoping conduit 41 to a negative pressure source (not shown). A tooth-shaped drive pool 39 is attached to a spline-shaped drive shaft 33 so as to be slidable in the axial direction, and causes a belt 32 (perforated timing belt) to run. Drive pulley 39
is located below the lower rotating shaft 5, but the belt 32
goes around the guide and tension pulley and passes between the two lower rotating shafts 5, so the lower rotating shaft 5 does not enter inside the running path of the belt 32. Conveyor bracket 26 is base frame 2
The fixing position can be adjusted to the left and right along the line 5. On the other hand, since the supporting frame 31 can also be moved left and right along the belt drive shaft 33, the position of the suction belt conveyor device 30 in the left and right direction can be adjusted.

Next, the operation of the slotter of the present invention will be explained. The paper material fed into the slotter from the previous process is transferred to the blade 27 of the tool support stand 17 of the vertical rotation shafts 5 and 6.
At the same time or immediately after receiving the action of It receives the cutting action between the receiving tool supports 18. The distance between the upper and lower tool supports 17 and 18 has no relation to the conveyance of the paper material, so the distance between the upper and lower tool supports 17 and 18, that is, the vertical rotation axis 5, is adjusted depending on the thickness of the paper material.
There is no need to adjust the spacing of 6. Therefore, the interval between the vertical rotation axes 5 and 6 is always constant,
This eliminates the need to adjust the distance between the upper and lower rotating shafts, which was conventionally performed every time the thickness of the paper material changed, and the efficiency of high-mix, low-volume production is improved accordingly.

When the slotter is not used, the motor 11 is operated to rotate the threaded shaft 15 of the transmission 14, and the elevating frame 4 is raised. When the tip of the blade 27 of the blade attachment tool support 17 rises to a height where it does not touch the paper material, the rotation of the motor 11 is stopped. The upper and lower rotating shafts 5 and 6 may or may not be rotated, but the suction belt conveyor device 30 is always operated when the processing line including the slotter is operated, regardless of whether the slotter is used or not. The paper material supplied to the slotter from the previous process is attracted and conveyed by the belt 32, and then sent to the subsequent process by the belt 32. During this time, even if the upper and lower rotating shafts 5 and 6 are rotating, the blade 27 is raised and does not affect the paper material at all. Therefore, the slotter can be kept in the processing line at all times, regardless of whether it is used or not. When the slotter is to be used again, the motor 11 is reversed and the elevating frame 4 is returned to its original position. This lifting and lowering of the lifting frame 4 is completed in a very short time. Since the time-consuming and labor-intensive reorganization work of the processing line, which was previously required each time a slotter is required, is no longer necessary, the efficiency of high-mix, low-volume production is greatly improved.

The tool supports other than the center can be shifted left or right depending on the processing specifications, and the suction belt conveyor device can also be shifted at the same time.

[Brief explanation of drawings]

1 and 2 are a front view and a side view of a slotter according to an embodiment of the present invention, and FIG.
FIG. 2 is a sectional view of a main part of the suction belt conveyor device shown in the figure. 1: Side frame, 4: Lifting frame, 5,
6: Rotating axis, 11: Motor, 12: Horizontal axis, 1
3: Transmission mechanism, 14: Mission, 15: Screw shaft, 16: Screw bearing seat, 17: Blade mount, 1
8: Blade holder, 30: Adsorption belt conveyor device,
32: Belt.

Claims (1)

[Scope of Claims] 1. A plurality of pairs of vertical rotating shafts are supported on a frame so that vertical intervals can be adjusted, a tool support is attached to the rotating shafts so that the horizontal position can be adjusted, and a suction belt conveyor device is attached to the frame, A slotter is provided in which the upper surface of the belt of the adsorption belt conveyor device is set parallel to and at the same height as the tool support for receiving the blade, and is run at the same circumferential speed as the tool support, and the upper rotation axis is connected to an elevating frame. The lower rotary shafts are each supported by a side frame, the elevating frame is attached to the side frame via a screw mechanism and a guide so as to be adjustable up and down, and a drive device is provided for rotating the screw mechanism. As a sloth. 2. The slotter according to claim 1, characterized in that the suction belt conveyor device is provided so that the horizontal position can be adjusted.