JPH0735755Y2 - A device that cuts sheet material to a specified size - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a device for cutting a sheet material such as cloth into a predetermined size.

[0002]

2. Description of the Related Art Conventionally, the following devices have been known as this type of device. That is, the base frame, the first clamp that is vertically movable on the base frame, and the second clamp that is provided on the lower part of the base frame.
It is known that a clamp is provided, which has a left and right moving base provided below the second clamp so as to be movable left and right on a base frame, and a cutter device provided on the left and right moving base.

[0003]

2. Description of the Related Art After a short end of a long sheet material is clamped by a first clamp, the first clamp is raised to a predetermined height. Then, the lower part of the long sheet material is fitted between the mutually clamped clamping pieces of the second clamp, and after that, the sheet material is pulled downward to be in a tensioned state. The sheet material is clamped by the clamp, and then
The sheet material is cut by a cutter device below the second clamp.

[0004]

Disadvantages of the Prior Art The above-mentioned conventional apparatus has the following drawbacks. That is, as is apparent from the above description, the first clamp needs to be raised by a height substantially corresponding to the length to be cut, so that the base frame is inevitably high and the entire apparatus is bulky. There was a flaw.

[0005]

OBJECT OF THE INVENTION This invention has been made to solve the above-mentioned drawbacks.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. In this specification, the front means the front side in FIG. 1, the rear means the same back side, the left means the left side in FIG. 1, and the right means the right side. As shown in FIG. 1 and FIG. 2, a pair of left and right lifting bodies 3 are provided to be movable up and down along the left and right side frames 2 of the base frame 1, and these lifting bodies 3 are lifted and lowered by a known lifting device 5. ing.

As shown in FIGS. 1, 3 and 4, a horizontal bar 7 for lifting a sheet material, which is a horizontal bar, is rotatably passed to the left and right lifting bodies 3, and the horizontal rollers 7 are lifted. It is adapted to be rotated by a motor 8 mounted on the. On the surface of the horizontal roller 7, a right spiral ridge 10 is provided on the left side and a left spiral ridge 9 is provided on the right side with the center as a boundary. And the horizontal roller 7
4 is rotated counterclockwise in FIG. 4, the sheet material S such as cloth hung on the horizontal roller 7 has a force to open to the left and right with the central portion of the horizontal roller 7 as a boundary. You will receive it and tighten it horizontally.

As clearly shown in FIG. 4, a cloth mounting table 12 is provided on a base frame 1 so as to be vertically swingable by a pivot 13, and the cloth mounting table 12 is a table drive including a rack and pinion and a fluid pressure cylinder. It is adapted to be swung up and down by the device 14.

As shown in FIG. 4, a first clamp 16 and a second clamp 22 are provided on the base frame 1 so as to be positioned in front of and behind the horizontal roller 7. The first
The clamp 16 includes a fixed bar 17 that is long in the left-right direction and a fixed holding piece 1 that is attached to the fixed bar 17 and that is long in the left-right direction.
8 and a movable gripping piece 1 provided at fixed intervals on a fixed bar 17, which is movable toward and away from the fixed gripping piece 18.
9 and 9. The second clamp 22 includes a fixed bar 23 that is long in the left-right direction, a fixed holding piece 24 that is attached to the fixed bar 23 and that is long in the left-right direction, and the fixed holding piece 24.
It has a movable bar 25 that is long in the left-right direction and that is movable toward and away from it, and a movable holding piece 26 that is attached to the movable bar 25 and that is long in the left-right direction. The left and right ends of the movable bar 25 are attached to front and rear sliders 27, and these front and rear sliders 27 are operated by a fluid pressure cylinder 28.

As shown in FIGS. 4 and 5, the base frame 1 is provided with a guide rail 31 which is long in the left-right direction, and a left and right moving table 32 is movable left and right along the guide rail 31. Is driven to move right and left by a known drive device 33. A cutter device 35 is provided on the left and right moving base 32 so as to be positioned below the second clamp 22.
The cutter device 35 has a rotary blade 36 having a horizontal rotation axis and a fixed blade 37 that cuts the sheet material S in cooperation with the rotary blade 36.

[0011]

Next, the operation of the apparatus of the embodiment will be described with reference to FIG.
The description will be made with reference to FIGS. As shown in FIG. 6A, the cloth placing table 12 is in the horizontal state, and the horizontal roller 7 is in the lowest position. In the above state, the sheet material S is placed on the cloth placing table 12 in a horizontal state, and the short edge of the sheet material S is passed over the horizontal roller 7 and is clamped by the first clamp 16. At this time, the short edge of the sheet material S is brought into contact with the fixed bar 17.

As shown in FIG. 6B, the horizontal roller 7 is rotated and raised by a set amount. By this operation, the sheet material S has an inverted U shape. As shown in FIG. 6 (c), the one that is not clamped by the first clamp 16 is passed between the second clamps 22 with their short ends open, and is dropped to the lower side and placed on the cloth. The table 12 has a hanging shape. Then, the sheet material S exposed from under the second clamp 22 is pulled so that the sheet material S is stretched,
The sheet material S is clamped by the second clamp 22.

As shown in FIG. 6D, the sheet material S is cut by the rotary blade 36 and the fixed blade 37 while moving the left and right moving table 32 from right to left. As is clear from this description, the cut-out dimension of the sheet material S is from the short edge contacting the fixed bar 17 of the first clamp 16 to the cutting position.

[0014]

The present invention has the following effects due to the above-mentioned configuration. By raising the horizontal bar, the sheet material hung on the horizontal bar is formed into an inverted U shape, and the size of the sheet material is taken. Therefore, compared with the conventional device having the same maximum cutting capacity,
The height of the device can be reduced to almost half.

[Brief description of drawings]

FIG. 1 is a simplified front view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged sectional view of a portion A in FIG.

4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is an enlarged cross-sectional view taken along the line VV of FIG. 1 with intermediate portions omitted.

FIG. 6 is a diagram illustrating the operation of the apparatus according to the embodiment.

[Explanation of symbols]

 1 Base Frame 7 Horizontal Roller (Horizontal Bar) 16 1st Clamp 22 2nd Clamp 32 Left / Right Moving Stage 35 Cutter Device

Claims (2)

[Scope of utility model registration request] 1. A base frame, a horizontal bar for raising and lowering a sheet material, which is provided on the base frame so as to be able to move up and down, and a first clamp, which is provided at a lower part of the base frame and is located in front of and behind the horizontal bar. A sheet member having a second clamp, a left and right moving base provided on the base frame so as to be movable left and right, and a cutter device provided on the left and right moving base under the second clamp to a predetermined size. Device to cut into pieces. 2. An apparatus for cutting a sheet material to a predetermined size according to claim 1, wherein the horizontal bar is a rotatable roller.