JPS596953B2 - Synthetic leather creasing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a creasing device for imparting a wrinkle pattern to the surface of synthetic leather.

Conventionally, there is artificial leather in which one side of the interlining is coated with a synthetic resin material, but in the past, hand-rubbing was used to give the surface a leather-like pattern.

However, there were drawbacks, such as requiring a lot of manpower, limiting the working time, and not being able to process thick objects.

Therefore, mechanical creasing devices have been proposed, but they have various practical drawbacks.

The present invention has been made to provide an apparatus that efficiently imparts a wrinkle pattern to fabrics, regardless of whether they are thin or thick, and also makes the fabric as a whole flexible, shrinks the fabric, and increases its strength.

Hereinafter, this invention will be explained with reference to drawings which are examples.
1, 1 is a corrugated roller supported horizontally with an appropriate interval above and below, and is located in a passage where an artificial leather sheet (hereinafter simply referred to as a sheet) 2 coated with synthetic resin on one side is stretched vertically. , the sheet 2 is curved into a wave shape and the entire width is reduced.

Reference numeral 3 denotes a middle rubbing wheel supported at an intermediate position between the corrugated rollers 1, 1, which includes a rubbing part 3a fixed to a frame rod, and a rubbing part 3a which is movably provided on the frame rod and moves toward and away from the rubbing part 3a. Movable rubbing part 3
It consists of b.

The movable massaging section 3b comes into pressure contact with the surface facing the massaging section 3a, and clamps the sheet 2 therebetween.

4 is an upper stage rolling wheel, and 5 is a lower stage rolling wheel, both of which are supported in parallel with an appropriate interval between the rolling wheel 3 and the corrugating rollers 1, 1, and like the rolling wheel 3, a sheet It consists of fixed massaging parts 4a, 5a and movable massaging parts 4b, 5b that hold the body 2 from the front and back.

Connecting plates 3c, 3c are provided at both ends of the rubbing wheel 3, and are supported at the tips of vertical cranks 8, 8 so as to be freely rotatable in the horizontal direction.
The cranks 8, 8 have a bearing plate 9 attached to the frame 6,
Further, the pair of cranks 8, 8 rotate at the same speed and in the same direction by a transmission device (not shown).

Therefore, the rubbing wheel 3 performs horizontal oscillation according to the rotation of the cranks 8, 8.

The rubbing portion 3a is provided on one side rod 3dl of a rectangular frame rod 3d that spans the connecting plates 3c, 3c, whereas the movable rubbing portion 3b is provided on a guide frame 3e provided at both ends of the frame rod 3d.
, 3e, and are associated with links 11, 11 operated by an air cylinder 10 supported by the other side rod 3d2, linking the sheet 2 penetrating between both the rubbing parts 3a, 3b. 11, 11 move the movable rubbing part 3b to the rubbing part 3a side by the operation of one of the air cylinders, press the corresponding surface thereof, and thereby clamp the sheet 2.

When the air cylinders 11, 11 operate on the opposite side,
The movable rubbing part is moved to the rear side, the movable rubbing part 3b is separated from the rubbing part 3a, and the sheet 2 is released.

The fixed rubbing portions 4a, 5a and the movable rubbing portions 4b, 5b of the rubbing wheels 4, 5 have the same structure and perform the same operation.

The cranks 12 and 13 that support the rubbing wheels 4 and 5 are supported by bearing plates 16 and 17 that are supported by lifting support rods 14 and 15, and are connected to drive spline shafts 18 and 19.

The spline shafts 18 and 19 are connected to each other by a transmission device (not shown) so that they rotate at the same speed and in the same direction.

A heater 20 is disposed below the lower corrugated roller 1 and heats the sheet 2 to a constant temperature if necessary.

Since the present invention is not configured as described above, the sheet 2 that is fed out is supported in a corrugated manner by the corrugating rollers 1, 1.
In the middle, there is a middle stage rolling wheel 3 which is supported by a rotating vertical crank and swings while maintaining the horizontal position, and a lower stage which is supported by vertical cranks above and below that move up and down in relation to each other and swings up and down. The upper, middle, and lower rollers 3, 4, and 5 clamp the sheet 2 while the upper and lower rollers 4, 5 are kept a certain distance from the middle roller 3, and then Then, the upper and lower rollers 4 and 5 approach the middle roller 3, and with the seat 2 bent, each roller swings in the direction of rotation of the crank.

Therefore, the sheet 2 is rubbed twice above and below the middle rolling wheel.

When the upper and lower rolling wheels 4 and 5 are farthest apart from the middle rolling wheels, the seat 2 is released and sent upward by a certain amount of dJ. Therefore, the seat 2 covers the same area as the lower and upper rows. The sheet is rubbed in two stages by changing the direction, creating wrinkles in a complicated pattern on the sheet.Furthermore, by changing the feed width, the same area can be rubbed several times in succession. Complete wrinkle processing can be completed with just one pass.

In the case of thick sheets, prior to rolling, a heater installed below the lower rolling wheel heats the dough to a predetermined temperature to make it easier to bend the dough, and then the dough is completely gripped by the rolling wheel and raised and lowered. Forcibly bent with a rolling wheel on the bottom of the soil,
The folded sheet is rotated and rubbed between opposing rolling wheels to add a wrinkled pattern to the sheet and at the same time make the sheet flexible.
It facilitates the sewing process of the fabric, increases its quality, and also has the effect of shrinking the fabric and increasing its strength.

Therefore, the surface of the sheet has wrinkles that are almost the same as natural leather, and at the same time, the fabric can be made softer.

As described above, according to the present invention, it is possible to provide a long artificial leather that is comparable in appearance, feel, and strength to natural leather, and has a wide range of uses such as clothing and shoes.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of the entire artificial leather creasing device of this invention, Fig. 2 is a front view of the main part, Fig. 3 is a side view of the main part, and Fig. 4 is a plan view of the middle rolling wheel. FIGS. 5 and 6 are illustrations of wrinkles. 1 , 1... Corrugated roller, 2... Sheet, 3... Middle rolling wheel, 4... Upper rolling wheel, 5...・Lower rolling wheel, 20... Heater.

Claims (1)

[Claims] 1. A synthetic resin-coated sheet is held in a wavy manner by corrugated rollers arranged at appropriate intervals vertically, and in the middle, the sheets are held horizontally with appropriate intervals vertically and horizontally oscillated. A pair of clamping wheels are provided in three stages, the upper and lower clamping wheels are arranged so that they can be raised and lowered, and the middle stage clamping wheels are installed so that they operate in a fixed position, and the upper and lower clamping wheels can be moved up and down. When the sheets are separated from each other for a certain period of time, each of the gripping wheels releases the sheet for a certain period of time, and the feeding means feeds the sheet, and each of the gripping wheels grips the sheet again, and the upper and lower gripping wheels This synthetic leather creasing device is characterized in that it approaches a middle-stage clamping wheel, loosens the sheet, and at the same time intermittently grips and massages the sheet in two upper and lower stages.