JPH02471Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an edge cutting device for fabrics, etc.

(Prior Art) There is a conventional device in which the entire edge of the ear is cut to a constant width.

(Problem to be solved by the invention) As shown in Fig. 1, a fabric 1, etc. always has ears 2 at both ends in the width direction, and these ears 2 are the cause of tension in terms of the fabric as a whole. In addition, it causes wrinkles and the like due to distortion in the area around the ears, which is a drawback in that accurate molding of clothing cannot be made.

Particularly in the process of spreading the fabric before cutting it into the shape of a garment, fabrics that cause such sagging will not be able to be stacked neatly because wrinkles will occur throughout the fabric. Therefore, even in the cutting process after making the mold, there are variations in dimensional accuracy, making it impossible to produce a good product.

Conventional devices for solving this problem, ie, devices that cut the entire edge of the ear to a constant width, have the problem of being large-scale and expensive.

This invention does not cut the entire ear end,
In other words, by cutting the ear end portions at appropriate intervals to a desired length, the strained state can be efficiently resolved.

(Means for Solving the Problems) In order to achieve the above object, the present invention has the following configuration.

A detection means A using a phototube for detecting the width of the fabric to be sent out in the width S direction and a cutting means B for cutting the fabric to a desired length in the width direction at appropriate intervals are arranged side by side on a base plate. , the base plate is configured to be able to slide appropriately in the width direction of the fabric by a signal from the detection means.

(Function) The detection means A moves the base plate on which the cutting means is mounted to follow the width of the cloth when the cloth 1 is fed out, and the cutting means B moves the base plate on which the cutting means is mounted to follow the width of the cloth, and the cutting means B moves the upper blade 9a in relation to the feeding of the cloth. Lower blade 9b
It operates using a solenoid or motor as the driving source.

Embodiment 1 FIG. 2 is an overall perspective view, FIG. 3 is a partial perspective view of the edge cutting means, and FIG. 4 is an explanatory view of the same operation.

Reference numeral 3 denotes a frame body of the apparatus; 4 and 4' denote pillars erected on the frame body, on which the original fabric is rotatably supported; It is sent out at a constant speed through a means. Reference numerals 5 and 5' denote edge cutting means disposed on the front side thereof, and detection means A and cutting means B are installed on base plates 6 and 6', respectively.

Here, the detection means A (hereinafter, only one side will be explained) is arranged such that the phototubes 7 of the emitter 7a and the receiver 7b are arranged at a fixed interval above and below, and the selvedge part 2 of the fabric passes within the interval m. 8 is a support plate for holding the phototube 7 at a constant height position on the base plate 6.

The cutting means B is a scissors type, and the lower blade 9
b is arranged so that the fabric 1 passing through the spacing m between the phototubes 7 passes over the upper surface of the lower blade 9b via a support plate 10 erected on the base plate 6; In other words, the set screws 12a, 12b
By loosening the blade and moving it back and forth as appropriate, the contact length l with the lower blade 9b can be changed, and the cutting length l' into the fabric 1 can be increased or decreased by the cutting action described below.

Therefore, the holder 11 connects the upper blade 9a to the lower blade 9b.
The supporting shaft 14 is rotatably supported by a bearing 13 provided on the supporting plate 8, while the holder 11
An arm 15 of a certain length is projected from below, and a lever 16 is freely fixed to the tip of the arm 15, and the lever 16 is momentarily pulled by the operation of a solenoid 17 provided on the base plate 6. As a result, the holder 11 rotates in the direction of arrow A, and the upper blade 9a descends to come into contact with the lower blade 9b, thereby cutting the ear portion 2. Note that 18 is a spring for returning the upper blade 9a to its original state.

Detection means A and cutting means B configured as above
are similarly provided on the opposite side of the fabric 1 in the width direction so as to cut the selvedges 2, and these are attached so as to automatically move and follow the width of the fabric. Specifically, the base plates 6, 6' are attached to rails 19 bored in the width direction of the frame body via rollers 20, and endless chains 21, 2 are installed in a certain length range along the rails 19.
1' is stretched, and the arms 22, 22' hanging down from the base plates 6, 6' are locked to the endless chains 21, 21', and the endless chains 21, 21' are driven by the motors 23, 23'.
By rotating the driving chain wheels 24, 24' of 21' forward and backward, the base plates 6, 6' are moved back and forth. At this time, the motors 23, 23' receive signals from the phototubes 7, 7', that is, changes in the amount of received light are used as signals to rotate the motors 23, 23' forward or reverse as appropriate. Therefore, the ear part 2 is always followed in a constant relationship.

It should be noted that the solenoid 17 is operated in relation to the speed of the fabric 1 when it starts to be fed, and this adjustment is performed by a control means (not shown).

In this example, with the above structure, as the fabric 1 is fed out, the edges 2 at both ends thereof are cut at appropriate pitch intervals by the cutting means B, B', thereby releasing the tension of the edges.

In this example, a chain is used as the means for moving the base plates 6, 6', but a timing belt or other gear means may also be used.

Embodiment 2 FIG. 5 shows another example of the edge cutting means. The cutting means in the above example used a solenoid 17, but in this example, the cutting means is driven by a motor, that is, a clutch is used. When the brake motor 25 is driven by inputting the feed speed signal at the same time as the start of fabric feeding, the holder 11 to which the upper blade 9a is fixed via the pulley 26, belt 27, and pulley 28 is rotated. The amputation takes place. At this time, the holder 11 can be rotated continuously, but it can be stopped after each rotation. 29 is a switch for this purpose.

The previous example is suitable when the cloth feed speed is relatively slow, but the present example is suitable when the cloth feed speed is fast.

(Effects of the invention) As described above, the present invention makes it possible to make cuts in the selvage portions of the fabric at appropriate pitch intervals and with a desired dimension length during the process of stretching the fabric, thereby easily eliminating the selvedge condition. This can effectively prevent fabric from becoming distorted and wrinkles to form.

Although the present invention can be used as a stand-alone device, it is convenient to use it by incorporating it into a spreading machine, dyeing machine, fabric inspection machine, etc.

[Brief explanation of drawings]

Figure 1 is a plan view of the fabric, Figure 2 is an overall perspective view,
FIG. 3 is a partial perspective view of the edge cutting means, FIG. 4 is an explanatory diagram of the same operation, and FIG. 5 shows another example of the edge cutting means. 1...Fabric, 2...Ear part, A...Detection means, B
... Cutting means, 3 ... Device frame body, 5, 5' ... Edge cutting means, 6, 6' ... Base plate,
7...Phototube, 9a...Upper blade, 9b...Lower blade, 1
1...Holder, 17...Solenoid, 18...
Spring, 19...Rail, 23, 23'...
Motor, 25...Motor.

Claims (1)

[Scope of utility model registration request] A detection means A using a phototube for detecting the width at both ends in the width direction of the fabric to be sent out, and a cutting means B for cutting the width direction at appropriate intervals to a desired length are arranged side by side on a base plate, 1. An edge cutting device for fabric, etc., characterized in that the base plate can be slid appropriately in the width direction of the fabric by a signal from a detection means.