JPH0367720B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is directed to washing and dehydrating fabric products (hereinafter referred to as "sheets") in industrial laundry equipment, such as sheets and wrapping cloth, to equipment for the next process, e.g. In order to load the sheet into a roll iron finishing machine (hereinafter simply referred to as roll iron finishing machine), both ends of the upper edge of the sheet are
This relates to a sheet spreader that grips and spreads the sheet with a pair of holders and places the sheet on a feeding conveyor after the spreading is completed.

[Conventional technology]

Conventional sheet spreading machines generally consist of a pair of holders that stretch and spread the sheets, and a feed conveyor that carries the stretched and spread sheets with the holders and supplies them to a roll iron finishing machine.
The sheet is stretched out using a pair of holders, the stretched sheet is fed and placed on a conveyor, and the sheet is loaded into a roll iron finishing machine.

[Problem to be solved by the invention]

However, since the above-mentioned conventional sheet spreading machine is equipped with a pair of holders and a feeding conveyor, one conventional sheet spreading machine can perform both the sheet tensioning and spreading process and the sheet rolling process. The process of placing the sheets on the feeding conveyor is performed alternately, and the sheets can only be fed to the roll iron finishing machine intermittently. As a result, there is a problem in the finishing efficiency of sheets.

SUMMARY OF THE INVENTION An object of the present invention is to provide a sheet spreader that can continuously finish sheets.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention is equipped with a plurality of sets of a pair of holders for stretching and spreading sheets, and a feed conveyor for loading the sheets stretched and spread by the holders into a device for the next process. , and the feed ports of each set consisting of the holder and the feed conveyor are arranged to be shifted back and forth along the conveying direction of the sheets, and the feed conveyors of each set are arranged in multiple stages above and below, This set is characterized in that the process of stretching and spreading the sheet using the holder and the process of feeding the sheet and placing it on the conveyor can be performed at the same time.

[Effect]

Since the sheet spreader of the present invention has the above-described configuration, for example, when two sets of a pair of holders and a feed conveyor are provided, the sheet spreader in the front set is placed on the feed conveyor. While the sheets are being stretched, the rear group performs the sheet stretching process, and while the rear group sends the stretched sheets and places them on the conveyor, the front group performs the sheet stretching process. In this way, the process of stretching and spreading the sheets and the process of placing the spread sheets on the feeding conveyor can be performed at the same time. Sheets can be fed to a roll iron finishing machine to improve sheet finishing efficiency. In the present invention, the feed ports of each set consisting of a sheet stretching holder and a feed conveyor are arranged to be shifted back and forth along the sheet conveyance direction, and the feed conveyors of each set are arranged vertically. Since they are arranged in multiple stages, even though there are a plurality of pairs of holders and feed conveyors, the efficient processing described above can be carried out smoothly and reliably without interfering with each other.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sheet spreader according to the present invention will be described below with reference to the accompanying drawings.

In the figure, 10 is a machine frame of the sheet spreader of the present invention.

1A is a first moving conveyor installed on the front side of the machine frame (left side in FIG. 1), and this first moving conveyor is configured so that it can take a retreat position shown by a solid line and a forward position shown by a two-dot chain line. (The details will be described later), and in the retracted position shown by the solid line, the rear end of the first moving conveyor 1A forms a chevron-shaped first
It is located above the intermediate conveyor 9A, and is configured so that sheets placed on the first moving conveyor 1A can be supplied to the roll iron finishing machine via the first intermediate conveyor 9A. Therefore, the first moving conveyor 1A and the first intermediate conveyor 9A constitute a first feeding conveyor.

1B is a second moving conveyor installed below the intermediate conveyor 9A and behind the first moving conveyor 1A (on the right side in FIG. 1), which takes a retreat position shown by a solid line and a forward position shown by a two-dot chain line. (The details will be described later), and in the retreat position shown by the solid line, the second moving conveyor 1B is a second intermediate conveyor disposed substantially horizontally below the first intermediate conveyor 9A forming a mountain shape. The sheet placed on the second moving conveyor 1B overlapping the sheet 9B can be supplied to the roll iron finishing machine via the second intermediate conveyor 9B. Therefore, the second moving conveyor 1B and the second intermediate conveyor 9B constitute a second feeding conveyor.

The first and second moving conveyors 1A and 1B are
As shown in FIG. 2, for example, arms 2a, 2a', 2b,
2b', and these arms 2a, 2a', 2
The lower ends of arms 2b and 2b' are rotatably supported on an underframe, etc., and a cylinder 7 is installed in the middle of arms 2a and 2a'.
By connecting the tips of the piston rods 70 and operating the cylinder 7, the first moving conveyor 1A
The second moving conveyor 1B can take a retreat position shown by a solid line and a forward position shown by a two-dot chain line in FIG. I'm trying to make it possible.

A pair of left and right sheet holders 3, 3' are disposed at the upper part of the front end of the first moving conveyor 1A when the first moving conveyor 1A is in the retreat position, for gripping both ends of the upper end of the sheet and stretching the sheet. A first set of inlets is provided. Similarly, a pair of left and right sheet holders 3, 3' are disposed at the upper part of the front end of the second moving conveyor 1B when the second moving conveyor 1B is in the retreat position, for gripping both ends of the sheet and stretching the sheet. A second set of inlets is provided.

An example of the sheet holders 3 and 3' will be described with reference to the embodiment shown in FIG. Similarly, fix the substrate 3d' of the right holder on the upper side of the endless wire rope 4, and pass it through the hole drilled in the substrate on the lower side of the endless wire rope 4. Thus, the endless wire When one of the pulleys at both ends of the holder is rotated, for example, to the left, the base plate 3d of the holder,
When 3d' approaches and rotates to the right, the substrate 3d,
3d' are spaced apart from each other. Upper fingers 3a, 3a' are attached to the substrates 3d, 3d' via fulcrums 3b, 3b', and the upper fingers 3a, 3a' are raised and lowered by cylinders 5, 5'. Finger 3c, 3
c' is mounted so that it can be moved forward or backward by cylinders 6, 6', and the cylinders 5, 5', 6,
6' to drive the upper and lower fingers 3a, 3b, 3a',
3b' grips both ends of the upper edge of the sheet, and in this state the endless wire rope 4 is driven to stretch and spread the sheet 8.

The cylinder 7 and the holding portion 3 are controlled by a control device not shown. That is, when this control device completes stretching the sheets,
The piston rod 70 of the cylinder 7 is extended to advance the stretched sheet 8 to a position where it is placed on the first or second moving conveyor 1A, 1B, and then the holding state of the holders 3, 3' is released and the sheet 8 is moved forward. When the sheet is placed on the first or second moving conveyor 1A, 1B, the piston rod 70 of the cylinder 7 is retracted and the sheet is placed on the first or second moving conveyor 1A. , 1B, and waits at that position until the next sheet is completely stretched.

The sheet spreader of the present invention in this embodiment is as follows:
Since the configuration is as described above, the first moving conveyor 1A and a pair of holders 3, 3' installed above the first moving conveyor 1A
and a first set consisting of the first intermediate conveyor 9A, and a second set consisting of the second moving conveyor 1B, a pair of holders 3, 3' installed above it, and the second intermediate conveyor 9B. The sheet 8 can be efficiently supplied to the roll iron finishing machine by performing the stretching process and the process of placing the sheet on the feeding conveyor at the same time.

That is, in the first set, the holders 3 and 3' holding the left and right upper edges of the sheet 8 are pulled by the wire rope 4 and moved from the center to the left and right,
When the stretching limit is reached, the sheet holders 3, 3' stop moving (see FIG. 3A).

In this state, when the completion of spreading the sheet is detected, the piston rod 70 of the cylinder 7 is extended.
The first moving conveyor 1A moves forward. As a result, the sheet 8 is hung on the front end of the first moving conveyor 1A (see FIG. 3B).

When the first moving conveyor 1A moves forward, the cylinders 5, 6 (5', 6') operate, and the holders 3,
3' is released, and the sheet 8 is held by the holder 3,
3' and ride on the first moving conveyor 1A.
At this time, since the stretched sheet 8 naturally falls onto the first moving conveyor 1A, both ends of the upper edge of the sheet 8 are folded into a triangular shape, like when the sheet is placed on the conveyor by blowing air. There is no bending.

When the first moving conveyor 1A reaches the frontmost position and the sheet 8 is placed on the first moving conveyor 1A, the piston rod 70 of the cylinder 7 is retracted to move the first moving conveyor 1A backward (see FIG. 3C). As a result, the sheet 8 is sent to the roll iron finishing machine via the first intermediate conveyor 9A while maintaining its flat shape.

Then, the first moving conveyor 1 in the retreat position
A waits at that position until the next sheet 8 is stretched out.

In addition, in the second set, the holders 3 and 3' that grip the left and right upper edges of the sheet 8 are connected to the wire rope 4.
The sheet holders 3, 3' move left and right from the center by being pulled by the sheet holders, and when they reach the expansion limit, the sheet holders 3, 3' stop moving (see FIG. 4A).

In this state, when the completion of spreading the sheet is detected, the piston rod 70 of the cylinder 7 is extended.
The second moving conveyor 1B moves forward, and the sheet 8 is hung on the front end of the second moving conveyor 1B (see FIG. 4B).

When the second moving conveyor 1B described above moves forward, the cylinders 5 and 6 (5', 6') operate, and the holders 3,
3' is released, and the sheet 8 is held by the holder 3,
3' and ride on the second moving conveyor 1B.
At this time, the stretched sheet 8 naturally falls onto the second moving conveyor 1B, so that both ends of the upper end of the sheet 8 are not bent into a triangle as described above.

When the second moving conveyor 1B reaches the frontmost position and the sheet 8 is placed on the second moving conveyor 1B, the piston rod 70 of the cylinder 7 is retracted to move the second moving conveyor 1B backward (see FIG. 4C). As a result, the sheet 8 is supplied to the roll iron finishing machine via the second intermediate conveyor 9B while maintaining its flat shape.

Then, the second moving conveyor 1 in the retreat position
B waits at that position until the next sheet 8 is stretched out.

In this way, in the embodiment described above, the two sets of moving conveyors 1A, 1B and the holders 3,
Since the process of placing the sheet on the feeding conveyor 3' and the process of stretching and spreading the sheet by the holders 3 and 3' are performed simultaneously, the sheet 8 can be efficiently supplied to the roll iron finishing machine.

Moreover, in the present invention, the feed ports of each set consisting of a holder for the sheet stretching process and the feed conveyor are arranged to be shifted back and forth along the conveyance direction of the sheet, and the feed conveyors of each set are arranged vertically. Since they are arranged in multiple stages, even if there are a plurality of pairs of holders and feed conveyors, efficient processing such as front and rear can be carried out smoothly and reliably without interfering with each other.

In addition, in the above-mentioned Example, although the example which used the moving conveyor 1A, 1B and the intermediate conveyor 9A, 9B was shown, the fixed type feeding conveyor can also be used. In this case, the means for placing the sheets 8 on the fixed feed conveyor include blowing air, swinging a rod, or moving the pair of holders 3 and 3' to the downstream end of the fixed feed conveyor. There are many things that can be considered.

Further, in the above embodiment, each moving conveyor 1A,
Although the holders 3 and 3' installed in 1B are one pair, it is also possible to increase the number of sets of holders so that the sheet stretching process can be carried out efficiently.

〔Effect of the invention〕

As described above, according to the present invention, a plurality of sets are provided, including a pair of holders for stretching and spreading sheets, and a feed conveyor that carries the sheets stretched and spread by the holders and supplies them to a device for the next process. Since the process of spreading out the sheets and the process of placing the sheets on the feeding conveyor can be performed simultaneously using multiple sets, it is possible to feed the sheets efficiently, and each set consists of a holder and a feeding conveyor. The feed ports of each set are staggered back and forth along the sheet conveyance direction, and the feed conveyors of each set are arranged in multiple stages above and below, so even if there are multiple pairs of holders and feed conveyors, they will not interfere with each other. This has the advantage that efficient processing as described above can be carried out smoothly and reliably without having to do anything.

[Brief explanation of drawings]

The attached drawings show an embodiment of the sheet spreader according to the present invention, and FIG. 1 is a schematic diagram showing the main parts of the whole,
Fig. 2 is a schematic diagram showing an example of the configuration of a moving conveyor and a holder, Fig. 3 A, B, and C are explanatory diagrams of the operation of the first set, and Fig. 4 A, B, and C are illustrations of the operation of the second set. It is an explanatory diagram. 1A...first moving conveyor, 1B...second moving conveyor, 2a, 2a', 2b, 2b'...arm,
3, 3'... Sheet holder, 4... Wire rope, 5, 5', 6, 6', 7... Cylinder, 8...
Sheets, 9A, 9B...Intermediate conveyor.

Claims (1)

[Claims] 1 Equipped with a plurality of sets of a pair of holders for stretching and spreading the sheets, and a feed conveyor that carries the spread sheets by the holders and supplies them to the next process equipment, and each set consisting of the holders and the feed conveyor A step in which the feed ports of the sets are arranged to be shifted back and forth along the conveying direction of the sheets, and the feed conveyors of each set are arranged in multiple stages above and below, and the sheets are placed on the feed conveyors by the plurality of sets, and the sheets are stretched. A sheet spreading machine characterized by being able to perform a spreading process at the same time.