JPS6260486B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding device for endless pattern cards for a shedding device of a loom.

A device of this type with a card slot is known from German Utility Model No. 77 21 297. In order to enter such a card slot, the handle card must be provided with lateral hooking devices, so-called clasps, and must be bent at regular intervals to allow an unobstructed guidance in the card slot. This known device has various drawbacks which lead to breakdowns, especially in high-speed Jacquard machines. In other words, does the clasp get caught in the card passage and come off?
Or it may get caught at the entrance to the card cylinder, causing the pattern card to tear. Because of the folds in the pattern cards, trouble-free scanning of the hole information on the board cards is not always guaranteed. Finally, since the known card passage is open and dust is often generated in loom factories, the dust adhering to the card is introduced into the needle operating mechanism, which quickly becomes contaminated and reliable scanning is no longer possible. becomes impossible.

Starting from this, it is an object of the invention to provide a device with which large lengths of unbendable and detent-free handle cards can be supplied without any hindrance.

This problem is solved by doing the following. That is, the horizontal projection plane of the prismatic container is slightly larger than the width of the pattern card in one direction and approximately equal to the length of the pattern card's naturally formed loop in the other direction, and the container has a pattern card on its ceiling. It has an introduction slit and an extraction slit,
It has an air blowing opening at its bottom, allowing this air to exit again through the ceiling.

In a practical configuration, the front wall adjacent to the guide slot can be provided with a number of openings at the bottom over its entire width and is designed, for example, as a perforated plate. If the strip with an opening in the front wall is guided obliquely inward, a fan is provided in the housing formed thereby on the outer surface and delimited by the bottom and the side walls, by means of which air is sucked through the filter. Can be done.

However, it is also readily possible to provide an opening in the bottom of the container for the intake of air.

In another configuration of the present invention, since the ceiling of the container is configured in a gable shape, the introduction slit can be provided at the lower end of the ceiling surface, the outlet slit can be provided at the upper end of the ceiling surface, and the other ceiling surface is used as a lid. It is configured.
Furthermore, it is proposed to provide a pattern card and an air guide plate at a distance from the closed ceiling surface, which is configured as a lid.

The device constructed in accordance with the invention has the advantage that large length patterned cards without bending and clasps can be stored dust-free and fed without hindrance. After scanning, the pattern card introduced into the container forms a natural loop, with no strong bends occurring that would interfere with the scanning of the hole information on the card cylinder. The loops at the top of the container then run relatively closely together, and the spacing between the layers gradually increases towards the bottom of the container. In the area where the air enters, the lowest loop is pushed upwards, and the maximum spacing between the layers allows relatively friction-free withdrawal of the pattern card. This is because the air entering the container does not flow past the side edges of the handle card, and the holes on the entire surface of the handle card allow air to rise through the pile formed by the loops of the handle card. It is. It is also possible to withdraw the pattern card from the underside of the pile on the bottom of the container and pull it out to the outlet slit in the ceiling of the container, which is surprisingly easy to do due to the aerodynamic disintegration of the pile formed by the pattern card. It is done properly and without any problems.

Further details, features and advantages of the invention include:
It will become clear from the following description of the accompanying drawings, which show preferred embodiments of the container.

A card cylinder 2 is provided below a needle operation mechanism (not shown) that scans the hole information of the pattern card 1, and the pattern card 1 moves on this cylinder 2 through a feed pin 3 that fits into a plurality of rows of feed holes 4 provided parallel to each other. It is pulled by. Note that the pattern card 1 has a hole 5 formed on its entire surface for forming information of a specific pattern.

Below the card cylinder 2, there is a front wall 7, a rear wall 8,
two side walls 9 and 10, bottom 11 and gable ceiling 1
There is a prismatic container 6 formed by 2. ceiling 1
2 is the fixed ceiling surface 13 closer to the card cylinder 2
has an introduction slit 14 and an extraction slit 15,
Through these slits the handle card 1 can be introduced in the direction of the arrow B and taken out again in the direction of the arrow A.

The front wall 7 of the container 6 has a lower end bent inward and is provided with a number of openings 16.
Air can be blown into the container 6 through 6.
A housing 1 formed for this purpose by an inwardly recessed front wall 6, side walls 9 and 10 and a bottom 11.
A fan 18 is provided inside the fan 7 and is covered with a filter 19 from the outside.

A ceiling surface 20 following the rear wall 8 of the ceiling 12 is configured as a lid, and its upper edge is extended to form a guide plate 21. The ceiling surface 20 including the guide plate 21 can be opened in the direction of arrow C.

A pattern card 1 and an air guide plate 22 are provided on the side walls 9 and 10 at intervals below the ceiling surface 20. A further guide plate 23 is located above the guide slot 14 on the front side.

The thick arrow air flow generated by the fan 18 enters the container 6 through the opening 16 and rises through the pile of perforated handle cards 1, partially through the introduction slit 14 and into the large The portion comes out from the lead-out slit 15. At that time, put pattern card 1 in container 6.
The deposit formed by this is disintegrated and the pattern card 1
The naturally formed loops on the bottom 11 have a greater mutual spacing above.
As a result, the handle card 1 can be pulled out from under the bottom of the stack with almost no wear and can be guided upwards along the rear wall 8 to the outlet slit 15. In this case, the movement of the pattern card 1 is facilitated by the air constantly rising along the rear wall 8. Introduction slit 1
4 and outside the outlet slit 15, the outflowing air can flow freely to the sides and upwards.

The new features described above and shown in the drawings are important to the invention, even if they are not expressly claimed in the claims.

[Brief explanation of the drawing]

FIG. 1 is a rear view of the card cylinder and the container provided below, and FIG. 2 is a side view of the card cylinder and the container provided below. 1... pattern card, 2... card cylinder, 6...
...Container, 7...Front wall, 8...Rear wall, 9,10...
Side wall, 11...Bottom, 12...Ceiling, 14...Introduction slit, 15...Output slit, 16...Opening, 18...Fan.

Claims (1)

[Claims] 1. The horizontal projection plane of the prismatic container 6 is slightly larger than the width of the pattern card 1 in one direction and approximately equal to the length of the naturally formed loop of the pattern card 1 in the other direction. , the container 6 has an inlet slit 14 and an outlet slit 15 for the pattern card 1 in its ceiling 12, and an air blowing opening 16 in its bottom 11.
A device for feeding endless pattern cards for a shedding device of a loom, characterized in that the air can exit again from the ceiling 12. 2 The front wall 7 adjacent to the guide slit 14 is located at the bottom 1
2. Device according to claim 1, characterized in that it is preferably constructed as a perforated plate, with a plurality of openings (16) at one point over its entire width. 3. The strip with the opening 16 in the front wall 7 is guided obliquely inward, so that the fan 18 is provided in a housing 17 formed on the outer surface. The equipment described in section. 4 The housing 17 of the fan 18 is the filter 19
4. Device according to claim 3, characterized in that it is closed to the outside by. 5. The device according to claim 1, characterized in that the ceiling 12 is constructed in the form of a gable. 6. The device according to claim 5, characterized in that the introduction slit 14 is provided at the lower end of the ceiling surface 13, and the lead-out slit 15 is provided at the upper end of the ceiling surface 13. 7 At a distance from the other closed ceiling surface 20,
6. Device according to claim 5, characterized in that a handle card 1 and an air guide plate 22 are provided. 8. The device according to claim 7, characterized in that the upper edge of the closed ceiling surface 20 is extended to form a guide plate 21. 9. Device according to claim 8, characterized in that the closed ceiling surface 20, including the guide plate 21 connected thereto, is configured as a lid.