JPS6342106Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a device for producing gloss on the surface of tanned leather.

[Traditional field]

Polishing the surface of leather, so-called polishing, has conventionally been carried out by attaching the surface of the leather to the surface of a stone roll rotating at high speed. That is, the third
As shown in the figure, a stone roll c is rotating at high speed on a thick felt b placed on a workbench a, and a worker d holds a leather e with both hands between the stone roll c and the felt b. It has a structure that allows it to be sent. Operator d ensures that the leather surface is sufficiently polished between the stone roll and the felt while suppressing movement of the leather.

Here, the average width of the leather e is about 180 cm or more and the width of the stone roll is about 60 cm, so in order to polish the entire surface of the leather, the worker must move the leather laterally with respect to the stone roll. There is a need. During this time, it is of course necessary to suppress the movement of the leather so that there is sufficient differential movement between the leather and the stone roll. In addition, the pulling of the leather by the stone roll is powerful, so a strong force is required to withstand it.

Therefore, conventional polishing operations have poor workability, require skill, and are tiring.

In order to improve workability, if the stone roll e is made long, for example, 180 cm in width, as shown in Figure 4, the pulling force of the leather by the stone roll becomes so strong that it is difficult to suppress it with the physical strength of one worker. In addition, as shown in the rough pressure diagram shown at the bottom of the same figure, the pressure may loosen in the center, and in severe cases, a gap may form between the leather and the leather, resulting in poor finishing. There is a risk of deterioration.

[Purpose of this invention]

To provide a device which can obtain good results in one pass without pressing leather by hand, can be used without using a long stone roll, and can be used without special experience.

[Structure of the present invention]

A felt belt with sufficient width and length is used as a workbench, and a presser belt and stone roll are placed on the top side of the felt belt.

A plurality of stone rolls are arranged in a staggered manner in the width direction of the felt belt, and their ends overlap each other in the running direction of the felt belt, and the presser belt is placed in front and behind each stone roll. They are arranged in the running direction of the felt belt so as to be sandwiched between them. The presser belt must sandwich the leather to be processed between it and the felt belt, and must exert a restraining force that can withstand the pulling in by the stone rolls. For this reason, the presser belt is made of a special rubber belt that has a high coefficient of friction with the leather.
It is necessary to have material characteristics or mechanical characteristics that strengthen the grip of the leather between the felt belt and the felt belt.

[Explanation of Examples]

In Figure 1, symbol 1 is a felt belt, 2
is a presser belt, and 3 is a stone roll.

As shown in the figure, the felt belt 1 is a conveyor belt with sufficient width in the left, right, front, and rear directions even when the presser belt 2 and the stone roll 3 are arranged, and as shown in FIG. and idler wheel 5 at the rear end
It is suspended between the two and driven at a constant speed. A suitable number of intermediate idlers 6, 7, 8 are arranged between the idler wheels 5 and the drive wheels 4. These driving wheels 4 and intermediate idler wheels 6,
7, 8. The idler wheel 5 has a length greater than the width of the felt belt 1, and also serves to support the belt.

The presser belt 2 is stretched so as to be in contact with the upper surface of the felt belt 1, and also includes a drive wheel 9, an idler wheel 10, and, if necessary, an intermediate idler wheel 11. The belt 2 itself may be made of rubber or may have irregularities on its surface to increase the frictional force with the leather. As shown in FIG. 1, these presser belts 2 are arranged along the running direction of the felt belt 1 so as to sandwich each stone roll 3. As shown in FIG. 2, an intermediate idler wheel of a felt belt is arranged below at least the idler wheel 10 or drive wheel 9 on the side closest to the stone roll 3, and The shaft of the wheel is urged downward by a spring 12, that is, in a direction that reduces the distance between the intermediate idler wheel of the felt belt 1 and the idler wheel 10 or drive wheel 9 on the presser belt 2 side, thereby increasing the gripping force on the leather. be able to. The presser belt 2 is driven at the same speed as the felt belt 1.

Each stone roll 3 has a width of about 70 cm, and three stone rolls are used in this embodiment. The three stone rolls are arranged in a unique manner, as shown in the figure, in a staggered manner in the width direction of the felt belt, and in the running direction, their ends overlap. With this arrangement, when the leather e to be processed is inserted into this device from the top as shown in the figure, the pulling force of the stone roll is first received from the center, and then the left and right sides receive it at the same time, so that the force received from the stone rolls is well balanced. , the leather is less likely to twist. Furthermore, when viewed from the running direction of the felt belt, there are no gaps between the three stone rolls, so the entire surface of the leather can be polished with just one pass.

In FIG. 2, a pressure roller 13 is attached to the piston 15 of the air damper 14, and is always urged upward, that is, toward the stone roll, so as to sufficiently press the leather against the stone roll.

[Action/Effect]

Now, when the leather e to be processed is fed between the felt belt 1 and the presser belt 2 from the direction of the arrow, the leather e is strongly clamped and conveyed between both belts, and is eventually polished with a stone roll 3. The strong pulling force at this time is countered by the clamping force of both belts. In particular, the clamping force by the idler or drive wheel closest to the stone roll 3 and the intermediate idler (of the felt belt) below it acts effectively. In this way, the leather is polished first in the center and then on both sides, so that the entire surface is processed at once without any gaps.

Therefore, workability is improved and fatigue is reduced.
Moreover, by using a plurality of stone rolls, there are no gaps in the middle, and even polishing can be performed. Further, the operator does not need any particular experience.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the present invention, FIG. 2 is a side view of the present invention, FIG. 3 is a perspective view showing conventional work, and FIG. 4 is an explanatory diagram of a long stone roll. 1: felt belt, 2: presser belt, 3: stone roll, 4: drive wheel (felt belt), 5: idler wheel, 6 to 8: intermediate idler wheel, 9: drive wheel (presser belt), 10: idler wheel , 11: Intermediate idler wheel (presser belt), 12: Spring, 13: Pressure roller, 1
4: Air damper, 15: Piston.

Claims (1)

[Scope of utility model registration request] so that it touches the top surface of the felt conveyor,
A plurality of stone rolls are arranged in a staggered manner in the width direction of the belt, and so that their ends overlap with each other in the running direction of the belt, and at the front and rear of each stone roll when viewed in the running direction of the belt. , a presser belt is arranged in contact with the upper surface of the felt, each presser belt is driven at the same speed as the felt belt, and at least an intermediate idler wheel of the felt belt is placed below the idler wheel or drive wheel closest to the stone roll. A leather polishing device characterized in that the wheels are arranged correspondingly and biased in a direction that reduces the distance between the two wheels.