JPH0790728A - Transfer of return flat in chainless flat - Google Patents

Abstract

PURPOSE:To smoothly circulate a flat by eliminating a flat chain of a carding engine and decreasing the number of flats. CONSTITUTION:A flat-free space 7 corresponding to the length of about 20-50 flats is formed, in a return path of a flat above a carding engine by decreasing the number of flats. Endless transfer members 10 capable of supporting the end faces of flats 1 are formed at both sides of the flat-free space 7 to form a high-speed return path. The flats 1 are successively transferred on a flexible bend 2 by the cooperative action of driving wheels 5, 6 having sprocket feeding teeth 4 and placed at the front and rear end of the flexible bend 2 of the carding engine. The return flat 1A pushed up with the front driving wheel 5 is successively transferred to the above endless transfer member 10 and the transferred flats 1B are transferred one by one at a high speed to the rear end of a reserve flat 1C group lowering toward the flexible bend 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transferring a return flat in a card machine having a chainless flat.

[0002]

2. Description of the Related Art A large number of flats mounted on a card machine are usually connected at both ends thereof by chains, and are gently rotated by one drive wheel known as a notch block. Therefore, the flat spacing is determined by the chain pitch. However, during operation of the card machine, a large amount of tension is applied to this chain, and bending and extension are repeated under this tension. Not only becomes large, but also the meshing with the drive wheel becomes poor, and when the bending and extension of the chain becomes unsmooth, various inconveniences occur such that a part of the flats rises on the flexible bend. And in order to avoid this inconvenience, the chain must be regularly cleaned and replaced, and a lot of labor and time are required for these operations.

As a method for improving the above-mentioned inconvenience, a chainless type in which a drive element is provided instead of a chain and a flat is moved by this drive element, as seen in Japanese Patent Laid-Open No. 54-46931. Flat card machines have been proposed.

[0004]

However, in the chainless type flat card machine which has been proposed, as shown in the above publication, the upper peripheral surface of the card cylinder is covered with a smaller number of flats than in the conventional case, and the flexibility is improved. By forming a return guide that is parallel to the bend,
Smooth movement of the flat is achieved despite the fact that there is no chain, but in the existing general-purpose existing card machine having 100 to 106 flats, there is a long return path of 60 or more in the number of flats. Therefore, it is extremely difficult to apply the proposed technique to the existing general-purpose card, and even if it is successfully implemented, the load on the drive wheel becomes significantly large.

The present invention provides a return flat transfer method which is sufficiently convenient not only for new card machines but also for improving existing general-purpose card machines having a large number of flats to a chainless type.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a flat drive wheel having a large number of sprocket-shaped feed teeth is provided on the front and rear sides of a flexible bend of a conventional card machine. Are sequentially moved along the flexible bend, and the number of flats that circulate is reduced by 20 to 50% to form a flat space corresponding to the reduced flats in the upper part of the card machine. In the flat space, an endless carrier that supports the flat end surface and can transport the flats individually at high speed is stretched, passed over the flexible bend and pushed up to the upper part of the card machine by one drive wheel. The return flats are individually transferred onto the above endless carriers and transported to the other drive wheel side at high speed. It has solved the above problems by Rukoto.

That is, according to the method of transferring a return flat in a chainless flat of the present invention, a flat return space corresponding to about 20 to 50 flats is provided in a flat return movement path above a flexible bend of a card machine. Endless belts that can support flat end surfaces are stretched on both sides of the flat-free space, and the flats are sequentially operated by the cooperation of drive wheels equipped with sprocket-shaped feed dogs that are provided before and after the flexible bend of the card machine. After moving on the flexible bend, the return flats pushed up to the upper part of the card machine are sequentially transferred to the above endless carrier, and the transfer flats are trailed one by one to the rear end of the reserve flat that is descending toward one drive wheel. It is characterized by high-speed transportation .

In the method of transferring the return flats in the chainless flat of the present invention described above, a number of flats move forward on the flexible bend from the rear side (taker-in roller side) to the front side (doffer side). It can be applied not only to the machine but also to a card machine in which the flat rotates in the reverse direction.

When the method of the present invention is applied to an ordinary card in which the flat rotates normally, the upper and lower drive wheels on the front and rear sides of the flexible bend are separated from the front and rear portions of the flat-free space. Sliding guides and tilt guides that extend toward the front and rear drive wheels are provided, and a plurality of flats are reserved in this tilt guide, and the flats are sequentially installed from the lower end of the tilt guide to the rear drive wheel by the weight of the reserve flat. It is fed in and moved to the flexible bend by rotating the drive wheel at the rear part, and the flat located on the flexible bend is moved from the back side to the front side of the card machine, and the flat reaching the front end position of the flexible bend is moved. The drive wheel provided on the front side sequentially pushes up to the return path and pushes up. Is moved away from the drive wheel on the front side along the sliding guide to a flat space, and the return flat reaching the end position of the sliding guide is sequentially transferred to the endless carrier to perform the transfer. It is preferable to transport the flats one by one at a high speed to the tail of the descending flat.

The above flat-free space is conventionally formed between the notch block bracket in the conventional card machine by removing the support bracket provided behind the notch block bracket and the grinding bracket provided in the return flat movement path, and formed between the both brackets. It is convenient to carry out the present invention on a general-purpose card machine.

The number of flats to be deleted is not required to be specified, but is preferably about 20 to 50 in order to achieve smoothness of high-speed transfer of flats and the effect of the method of the present invention. If the number of flats reduced, that is, the length of the flat space in the front-back direction is less than 20 flats,
The effect of reducing the number of flats is small and uneconomical. Further, when the length of the flat space in the front-rear direction is 50 or more in terms of the number of flats, the flat transfer distance by the endless carrier and the speed of the endless carrier become excessive, which makes it difficult to smoothly return the flat. Become. As a result of various studies, the length of the preferable flat space in the front-rear direction is about 35 in terms of the number of flats.

A flat belt, a timing belt, a chain, or the like, which has little or little elongation due to tension, can be preferably applied as the endless carrier stretched on both sides of the non-flat space position. The front surface side (flat mounting side) of the endless carrier is preferably made to have a high friction surface so that the flat does not inadvertently move when the flat is transferred.

The forward rotation speed of the endless carrier is the speed at which the flat transferred on the endless belt reaches the trailing trailing end of the other wheel while the flat on the flexible bend moves at an interval corresponding to the flat pitch. It is best to set it to such a value.By setting it like this, the position of the flat space does not substantially change during the operation of the card machine, and the return flat is sequentially transferred to the tail of the reserve flat without delay. Can be transferred.

[0014]

[Function] The flat on the flexible bend facing the card cylinder is advanced by one drive wheel and slowly moves while performing a normal carding action, and the flat that has finished the carding action is driven by the other drive wheel. It is discharged upwards and guided to the start end of the endless carrier, and the endless carrier promptly returns the discharged return flats toward the reserve flats on one drive wheel side to ensure smooth movement of the flats. To do.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete description will be given below with reference to the drawings showing an embodiment of the present invention. FIGS. 1 and 2 are a side view and a top view of a flat portion of a card machine, and (1) is a card machine. Flat, (2) is a flexible bend, and (3) is a card cylinder, and the flat (1) moves gently over the flexible bend (2) in the direction of the arrow. 1 illustrates an embodiment of practicing the invention.

According to the present invention, drive wheels (5) (6) having sprocket-shaped feed teeth (4) are provided on the front side and the rear side of the flexible bend (2), and the front and rear drive wheels (5) (6) are provided. ) Is slowly rotated in the same speed and in the same direction, and the flexible bend (1) is moved by the cooperation of both drive wheels (5) and (6) without connecting a number of flats (1) with a chain. A chainless flat card machine in which the flat return movement path above the flexible bend (2) is provided with a flat space (7) corresponding to 36 flats, and both sides of the flat space (7) are not provided. The pulleys (8) and (9) are provided on the pulley, and the pulleys (8) and (9) can support the front end surfaces (the upper end surface on the flexible bend) of both ends of the flat (1). Tape-like endless carrier (10)
Are stretched in parallel, and the flats (1) are sequentially moved on the flexible bend (2) by the cooperative action of (5) and (6) of both drive wheels, and then the front drive wheel (5).
The return flat (1A) pushed up to the upper part of the above is sequentially moved to the endless carrier (10) side by the pushing action of the drive wheel (5), individually transferred to the endless carrier (10), and transferred to the flat ( 1B)
Are immediately transferred one by one to the rear drive wheel (6) at the rear of the reserve flat (1C) group that is descending.

The traveling speed of the endless carrier (10) is such that the flat (1B) transferred onto the endless carrier (10) is moved while the flat (1) on the flexible bend (2) moves at an interval corresponding to the flat pitch. ) Is most preferably set to the speed at which the rear reaches the tail of the reserve flat (1C) group, whereby one flat (1) is placed on the flexible bend (2) by the rear drive wheel (6). One flat (1) is transferred from the flexible bend (2) by the drive wheel on the front side while it is being sent, and one return flat (1B) is transferred through the flat space (7) by the endless carrier (10). Therefore, smooth normal movement of all flats can be achieved. (11) is a drive motor for the endless transport body (10).

In order to carry out the transfer of the return flat (1B) by the endless carrier (10) more accurately, in the present invention, as shown enlarged in FIGS. 3 and 4, the flexible bend (2) is used. ) A sliding portion extending above the front and rear drive wheels (5) and (6) from the front and rear portions of the flat space (7) toward the front and rear drive wheels (5) and (6). A guide (12) and an inclined guide (13) are provided, and the inclined guide is supported by supporting the front ends of a plurality of flats (1C) on both sides of the flat (13), and this reserve flat (1C) is provided. Inclination guide (1
3) The lower end of 3) is sequentially lowered toward the rear drive wheel (6), and the rear drive wheel (6) is rotated to move onto the flexible bend (2) and is positioned at the flexible bend (2). The flat group (1) is moved from the back side to the front side of the card machine, and the flats (1) reaching the front end position of the flexible bend (2) are sequentially pushed up to the return path by the front side drive wheel (5), The return flat (1A) pushed up and separated from the drive wheel (5) on the front side is moved to the flat space (7) along the slide guide (12) to the end position of this slide guide (12). The reached return flats (1A) are sequentially transferred to the endless carrier (1
0) and transfer flats (1B) one by one through the above-mentioned tilt guide (13) to the reserve flat (1)
It is configured to be conveyed to the rear of the group C).

The number of reserve flat (1C) groups is preferably about 10 to 15, and the number of return flat groups (1A) located on the sliding guide (12) is preferably about 3 to 5.

In order to smoothly deflect the flat (1) advanced by the drive wheels (5) (6) along a concentric orbit with the drive wheels (5) (6), the drive wheels (5) (6) are A rotary wheel (14) (15) is provided at the shaft end, and the outer circumference of the rotary wheel (14) (15) is provided outside the rotary wheel (14) (15) with a space allowing the flat end portion to pass therethrough. Parallel deflection guides (16) (17) are provided and the rear deflection guide (1
7) is its front end portion (17) as shown in FIG.
A) is located at the rear end of the flexible bend (2), and the rear end (17B) is at the return flat (1).
C) It extends to the slope descending part of the group. Further, as shown in FIG. 4, the front side deflection guide (16) has a rear end portion (16B) located at the front end portion of the flexible bend (2), and the front end portion (16A) thereof has the above-mentioned sliding guide (16A). 1
In the flat deflection portion of the front and rear drive wheels (5) and (6), which extends to the upper portion of 2), the flat is the rotation wheel (14) (15) and the deflection guide (1).
6) Passes the arc passage regulated by (17) and
It is designed to be moved in the same manner as a conventional flat connected by a chain.

The flat (1) group moving on the flexible bend (2) is gently pushed by the rear drive wheel (6) while performing a carding action in cooperation with the card cylinder (3). However, if some abnormality occurs during that time, some flats may rise from the flexible bend (2). (18) is an arch-shaped guide for preventing this lifting. It is most preferable that the lower surface of the arch-shaped guide (18) is arranged with a small gap so that it does not come into contact with the front end surface of the flat (1) group on the flexible bend (2). (1) is this arch guide (1
Considering the case of contacting the lower surface of 8), the lower surface of this arch-shaped guide (18) is preferably made a low friction surface. The low friction surface may be formed of, for example, a silicone resin layer.

When the arch-shaped guide (18) is arranged on the straight line connecting the outer circumferences of the front and rear rotary wheels (14) and (15), the flat (1) is formed by the rear drive wheel (6). Deflection part to flexible bend (2)
When moving upward, there is a risk that the rear end portion of the arch-shaped guide (18) abuts and smooth transition is hindered. Therefore, as shown in FIG. 5, the rear end portion (18A) and the front end portion (18B) of the arch-shaped guide (18) are located on the inner surface side or the outer surface side of the above-mentioned rotary wheels (14) (15). The above-mentioned inconveniences can be eliminated and a smooth transition of the flat can be achieved, which is convenient for carrying out the method of the present invention.

In the flat (1) on the flexible bend (2), since the flexible bend (2) is an arc curved surface, the drive wheel (6) can push the up curved surface on the rear side, but the flat bend (2) of the flexible bend (2) can be pushed forward. From the top surface position, a downward curved surface is formed, and the weight of the flat (1) acts on this downward curved surface, causing a phenomenon that the moving speed of the flat becomes a little faster in some sections of the downward curved surface. There will be a small gap between them, and the cotton wool will blow out from this gap.
(19) shows a suction tube device for treating the blown cotton wool.

[0024]

As described above, the method of transporting the return flats in the chainless flat of the present invention is equivalent to about 20 to 50 flat return paths on the flat return path above the flexible bend (2) in the card machine. A flat space (7) is provided, and an endless carrier (10) capable of supporting a flat end surface is stretched on both sides of the flat space (7) and is provided before and after a flexible bend (2) of a card machine. The flat wheels (1) are successively moved on the flexible bend (2) by the cooperation of the drive wheels (5) and (6) having the sprocket-shaped feed teeth (4), and then pushed up to the upper part of the card machine.
The lifted return flats (1A) are sequentially transferred to the endless carrier (10), and the transfer flats (1B) are trailed one by one toward the flexible bend (2) at the end of the reserve flat (1C). The flat (1) on the flexible bend (2) facing the card cylinder (3) because it is conveyed at high speed
Can be advanced by one of the drive wheels to perform a normal carding action and gradually move to perform a carding action as in the conventional case.

The flat (1) which has completed the carding action is discharged upward by the other drive wheel and moved toward the endless carrier (10), and reaches the starting end of the endless carrier (10). The returned flats (1A) are sequentially transferred to the endless transfer body (10) and quickly returned to one drive wheel side to perform continuous flat transition.

Therefore, the number of flats of the conventional general-purpose card machine can be greatly reduced, which not only helps to reduce the price occupied by the flats of the card machine, but also reduces the flatness, thereby forming a flat space above the card machine. However, the card function similar to the conventional one can be maintained without any hindrance to the carding action by the flat on the flexible bend.

Moreover, since the card chain for connecting the flats is not required, the above-mentioned inconveniences caused by the use and elongation of the chain are eliminated, and the flats can be easily attached and detached at the upper part of the card machine. It is possible to reduce the labor of flat management such as needle and refilling work, and because the weight of the upper part of the card machine is reduced, the position of the center of gravity of the machine base is lower than before, and the vibration of the machine base during operation is reduced to the flat group. The effect is small.

[Brief description of drawings]

FIG. 1 is a side view of a flat portion of a card machine showing a flat transition method of the present invention.

FIG. 2 is a plan view seen from above in FIG.

FIG. 3 is a side view showing the rear drive wheel side.

FIG. 4 is a side view showing the drive wheel side of the front part.

FIG. 5 is a cross-sectional view showing the structure of the front or rear drive wheel side.

[Explanation of symbols]

1. Flat 1A. Return flat 1B. Transfer Flat 1C. Reserve flat 2. Flexible bend 3. Card cylinder 4. Feed dog 5. Drive wheel 6. Drive wheel 7. No flat space 10. Endless carrier 12. Sliding guide 13. Inclined guide

Claims (3)

[Claims] 1. A flat return movement path above a flexible bend of a card machine is provided with a flat-free space equivalent to about 20 to 50 flats, and flat end surfaces can be supported on both sides of the flat-free space. The endless conveyor is stretched, and the flats are sequentially moved on the flexible bend by the cooperative action of the drive wheels equipped with sprocket-shaped feed dogs provided before and after the flexible bend of the card machine. A chainless flat characterized in that it is pushed up and the return flats pushed up are sequentially transferred to the above-mentioned endless carrier and the transfer flats are transferred one by one to the tail of the reserve flats descending toward the flexible bend. Return Flat Transfer Method in Japan. 2. A sliding guide and a tilt guide extending from the front and rear portions of the flat-free space toward the front and rear drive wheels, respectively, are provided above the front and rear drive wheels of the flexible bend. A plurality of flats are reserved in this tilt guide, and the flats are fed in sequence from the lower end of the tilt guide to the rear drive wheel by the weight of the Lizafu flat group, and are sequentially fed to the flexible bend by the rotation of the rear drive wheel. While inserting, move the flat located on the flexible bend from the back side to the front side of the card machine,
The flat reaching the front end position of the flexible bend is sequentially pushed up to the return path by the drive wheel provided on the front side, and the return flat pushed up and separated from the drive wheel on the front side is moved to the non-flat space along the sliding guide, The return flats that have reached the end position of the sliding guide are sequentially transferred to the endless transfer body, and the transfer flats are transferred one by one at a high speed to the trailing end of the reserve flat that is descending. The method of transporting a return flat in a chainless flat according to claim 1. 3. The endless carrier is set to a speed at which the flat transferred on the endless carrier arrives at the trailing trailing end of the other wheel while the flat on the flexible bend moves at an interval corresponding to the flat pitch. The return flat transfer method in a chainless flat according to claim 1, wherein