JP2509541B2 - How to cut the sliver when changing the can - Google Patents

Description

Description: TECHNICAL FIELD The present application relates to a sliver cutting method when an automatic can is exchanged in a spinning machine for a drawing machine, a card, etc., and a sliver is reliably cut by a small device having a simple structure. It is something to do.

Conventional technology and problems Sliver spun from spinning machines, cards, etc. is stored in a can, and when the can is full when preparing for the next process, the can is replaced with an empty can. It is well known that the sliver connected between the full can and the coiler tube is cut after that, and the spun sliver is stored in the next empty can.

The cutting of the sliver at the time of exchanging the can as described above has been done completely by hand when the can was exchanged manually as before. However, the automation of spinning work has progressed, and the sliver cutting has also been automated as the can replacement has been automated.For example, Japanese Patent Publication No. 49-30009 and Japanese Utility Model Publication No. 57-33019 propose an automatic cutting device. Not a few have been put to practical use.

As is clear from the description in the publication, the former of the above-mentioned prior arts replaces the cans while rotating the cans arranged in a circle, and the cans are provided at the center of rotation of the moving cans and rotate with the cans. Cutting is performed by a cutting device protruding between the mutual arrangement intervals. Therefore, in this conventional device, the same number of cutting devices as the cans arranged in the can changing device (characteristically, a sliver pressing device) are used.
Is required, the efficiency is low, and the cutting device needs to be longer than the diameter of the can, resulting in a large size.

Next, the latter conventional technique is applicable only when using a so-called pre-load type can in which the bottom plate of the can is raised to the top when the sliver is stored in the can, and the bottom plate is lowered as the sliver is stored. Not only that, but also the drive system becomes complicated, which is not preferable.

Means for Solving the ProblemsThe present invention, in view of the drawbacks of the above-mentioned conventional method, accommodates a sliver supplied from a rotating coiler tube in a can, and when the can is full, the can is moved to be full,
In the automatic can replacement method that replaces empty cans,
When the coiler tube is eccentrically rotated to one side with respect to the center of the can in a direction orthogonal to the direction of movement of the can and rotated, and it is detected that the coiler tube that rotates after a full pipe signal is reached reaches a predetermined appropriate position, By moving the empty can with this detection signal and exchanging the can, the sliver connected to the full can and the coiler tube passes through the center point of the rotation trajectory of the coiler tube, and is pulled so as to match the moving direction of the can. It is stretched between the full and empty cans so that it is located outside the dividing line, and a space is provided between the full and empty cans on the outside of the dividing line. The sliver is pressed by a pressing means equipped with a cutting blade that emerges from the outside of the can transfer path on the deviation side of the coiler tube into the transfer path. And 挾圧 between over bets, in which so as to cut by the cutting blade sliver was 挾圧.

Embodiment 1 In FIG. 1, reference numeral 1 is a coiler tube, and a coiler tube 2 is a coiler tube. (Not shown)
The storage in the empty can 4 which is placed on top and is rotating is the same as the conventional one.

Although various types of cans are conventionally used as the automatic cans exchanging device, in the present embodiment, the cans are abutted in a beaded state and moved linearly to replace a full or empty can. A case will be described in which the method of the present application is applied to the can exchange device 5 for performing the above. That is, in the storage position shown by A in FIG. 1, the sliver 8 spun from the coiler tube 2 is stored in the empty can 4, and when the can 4 becomes full, it stands by at the standby position shown by B. Sky can 4
By pushing out with the pusher 6, the empty cans 7 and 4 are moved in the state of a butt, and the empty can 4 is at the replacement position indicated by C and the empty can 4 is at the storage position A.
Move to and exchange cans.

In the can changing device 5 as described above, the sliver 8 is cut by the method of the present application as follows. In FIGS. 3 and 4, reference numeral 9 is a pressing means having a cutting blade 10, and the cans are exchanged so that an idle area 11 of a substantially triangular shape composed of adjacent empty and empty cans 7 and 4 is formed. It is rotatably supported by a mounting arm 13 mounted on a coiler plate 12 so as to correspond to a substantially center (FIG. 2). Reference numeral 14 is a storage tower for the pressing means 9 provided along the can changing device 5. A cylinder 15 attached to the storage tower 9 and one pivot arm 16 of the pressing means 9 are connected in series, and the operation of the cylinder 15 is performed. By pressing means 9
Is projected from the outside of the can transfer path 17 into the transfer path 17, that is, into the idle area 11, and is stored in the storage tower 14 when not operated.

Next, details of the pressing means 9 are as follows. In the drawing, reference numeral 18 denotes a pressing rod facing each other at a predetermined interval, and the front and rear ends of these two pressing rods 18 are connected by connecting plates 19 and 19a to form a frame body, and between the pressing rods 18. Is an operation path 20 of the cutting blade 10 described later. Thus, the connecting plate 19 on the front end side
2a, as shown in FIG. 2, without interfering with the empty cans 7, 4 in which the pressing rods 18 are adjacent to each other, and
For the purpose of maximizing the operation stroke of the cutting blade 10 by the pressing means 9 having the shortest possible length, the central portion thereof is a trapezoidal protrusion 19b. Also, the connecting plate 19 on the rear end side
Is attached with a pivot arm 16, the pivot arm 16 is pivotally supported by the attachment arm 13 by the attachment shaft 21, and one pivot arm 16 is a rod 15a of the cylinder 15. It is as described above that they are connected to each other. Reference numeral 22 in the drawing denotes a pressing member attached to the upper surface of the pressing rod 18 and made of an elastic body such as rubber.

Reference numeral 23 in the figure denotes a cylinder for activating the cutting blade 10. The cylinder 23 is attached to the connecting plates 19 and 19a on the front and rear sides, and the operating path 2
Mount so that it is located at the approximate center of 0. The cylinder 23 has a different structure from the cylinder 15 for rotating the pressing means 9 to the inoperative position, and a driver 26 connected to a floating piston (not shown) sealed in the barrel 25 is provided.
, Protrudes outside the barrel 25 from a groove 27 provided in the barrel 25, and this groove 27 is sealed with a steel tape (not shown),
A cylinder, which is widely used in recent years, that does not have a piston rod, so-called rodless cylinder, in which the driver 26 reciprocates over substantially the entire length of the barrel 25 by supplying and discharging pressurized fluid, is a limited space. It has the advantage of maximizing the transfer stroke of the object to be transferred, and therefore achieves its intended purpose in the present application by a short pressing means 9 which is full and which is less than half the diameter of the empty cans 7, 4.

In the above, the cutting blade 10 is fixed to the mount 28 attached to the driver 26 so as to encircle the barrel 25 of the cylinder 23, and the height of the cutting blade 10 is set to the idle state in which the pressing means 9 is formed on the transfer path 17. Protruding into area 11 and reaching the operating position, pressing material
When 22 comes into pressure contact with the back surface of the coiler plate 12, a slight gap is created between the coiler plate 12 and the coiler plate 12 or light contact is made.

Finally, a detection device 29 for detecting that the coiler tube 2 rotating while spinning the sliver 8 has reached an appropriate position for cutting the sliver 8 will be described. The detection device 29
Attach a circular mounting plate 33 to a proximity switch 31 fixedly provided on the frame 30 of the coiler box 1 and a coiler desk 32 that supports the rotating coiler tube 2 and rotates integrally with the switch. It consists of a detection piece 34 whose mounting position is adjustable by a large number of mounting holes 35 formed in 33, and the mounting position of the mounting piece 34 is the rotation of the coiler tube 2 as shown in FIG. The coiler tube 2 passes through the center of the locus 3 and is located outside the dividing line L drawn to match the moving direction of the empty cans 4 and 7, that is, within the range indicated by 3A.
When the position is reached, the mounting position is set so that the proximity switch 31 detects the detection piece 34 and emits a signal. Finally, the pusher 6 is attached to a moving plate 37 installed inside a guide rail 36 made of C-shaped steel, and by pulling the moving plate 37 with a chain 38, the pusher 6 reciprocates with a predetermined stroke.

When the empty can 4 in the storage position A becomes full, a detection device such as an auto counter (not shown) detects it and issues a full pipe signal to replace the can and disconnect the sliver 8, but the can is replaced. In this case, there are both a card that cannot stop the machine base and a machine that can stop the machine such as a drawing machine. In the following description, the former case will be described first.

As described above, when the full pipe signal is issued, the machine base is decelerated to a speed suitable for the can replacement, and the can replacement is prepared. When the proximity switch 31 detects the detection piece 34 that rotates together with the coiler tube 2 that rotates at a low speed after the full tube signal is transmitted, the detection signal of the full tube signal and the detection piece 34 are detected. When both signals of
Since the mounting position of the detection piece 34 is set as described above, when the detection signal is transmitted, the coiler tube 2 is
Naturally, it is located within the range indicated by the outer side 3A of the dividing line L. When the two signals of full pipe and detection are transmitted as described above, the pusher 6 advances from the position shown by the solid line in FIG. 1 to the position shown by the dotted line in FIG. 2 and pushes out the empty can 4 at the standby position B. As a result, the full can 7 in the storage position is pushed to the exchange position C in a beaded state as shown in FIG. 2 and the can is exchanged, and the conventional dead space is provided between the full can 7 and the empty can 4. The idle area 11 is formed in a substantially triangular shape, which is unavoidable because of the shape of the can. When the cans are exchanged as described above, the sliver 8 connected between the coiler tube 2 and the full can 7 crosses the idle area 11 from the full can 7 as shown in FIG. The pusher 6 starts returning to the original position while being stretched between the empty can 4 and the empty can 4.

When the can replacement is completed, the cylinder 15 then operates,
The pressing means 9 in the non-actuated position shown in phantom in FIG.
While rotating, it projects from the outside of the can transfer path 17 to the inside of the transfer path 17, that is, inside the idle area 11, and the pressing member 22 has a coiler plate.
The sliver 8 stretched as described above is brought into contact with the back surface of the coiler plate 12 while being pressed against the back surface of the coiler plate 12 (FIG. 4). Then, the cylinder 23 is activated and the cutting blade in the position shown by the solid line in FIG.
10 moves forward in the working path 20 to a position indicated by an imaginary line, and cuts the sliver 8 held in the above. When the cutting of the sliver 8 is completed in this way, the cylinder
23 and 15 operate in the opposite way to return each to the original position,
The end side of the sliver 8 connected to the coiler tube 2 to be cut is hung down and stored in the empty can 4 which has reached the storage position A by the replacement of the can. The spinning operation is performed after returning to operation.

The above explanation is for the case where the machine base cannot be stopped when changing the cans like a card. However, even if the machine base is stopped like a kneading machine, the subsequent work will be hindered. If not, after the full pipe signal is transmitted, the machine base is stopped by the detection signal that the coiler tube 2 has reached the proper position, and thereafter, the can is exchanged and the sliver 8 is cut in the same manner as described above.

In the above-mentioned embodiment, the can can be exchanged by pushing the empty can 4 pusher 6 to the full and the empty cans 7 and 4 in a state of a bead, but the form of the can exchange is not limited to this, and the can can 7 and 4 can be moved independently, and there is a predetermined space between the cans, and can also be implemented by a can exchanging device such as Japanese Patent Publication No. 49-30009. As long as at least the above-mentioned idle area 11 is configured, its form does not matter. Also, the mounting position of the detection piece 34 is adjustable as described above,
By detecting this with the proximity switch 31, it is possible to detect that the coiler tube 2 is in the proper position. However, when the low speed rotation is performed, the rotation speed, the cycle time of each operating part, and the machine base are stopped. In consideration of various conditions such as inertia rotation, the mounting position is adjusted so that the coiler tube 2 can be replaced or the machine stand can be stopped at an optimum position within the range indicated by the outer side 3A of the dividing line L. In addition, the control of the operation timing of each operation portion in the above-mentioned embodiment adopts an ordinary electric control method, and a detailed description thereof will be omitted.

Effects of the Invention As described above in detail, the sliver cutting method of the present application is
When the coiler tube, which is rotating after the full pipe signal is transmitted, sends out two signals, a detection signal that detects that the coiler tube has reached a predetermined proper position, the cans are exchanged. Since the sliver connected to the tube is located outside the dividing line and stretched between the full can and the empty can, the space required for cutting the sliver is inevitably configured when changing the can. Since the minimum unit dead space, i.e. idle area, or a space equivalent to that is sufficient,
Not only can the can change device be made compact, but the length of the pressing means can be half or less than the diameter of the can, and the application of the present application has the effect that the can change system does not matter. is there.

[Brief description of drawings]

The drawings show one example of the present application, FIG. 1 is a plan view, FIG. 2 is a plan view in which the can replacement is completed, FIG. 3 is a partially enlarged side view of FIG. 2, and FIG. 3 is a sectional view taken along the line AA of FIG. 3, FIG. 5 is a side sectional view showing the mounting relationship between the proximity switch and the detection piece, and FIG. 6 is a plan view of FIG. is there. 2 ... coiler tube, 3 ... rotation locus 4 ... empty can, 7 ... full can, 8 ... sliver 9 ... pressing means, 29 ... detection device, L ... dividing line

Claims (2)

(57) [Claims] 1. A sliver supplied from a rotating coiler tube is housed in a can, and when the can is full, the can is moved to replace the empty can with an empty can replacement method. When the coiler tube that rotates after eccentric to one side with respect to the center of the can in the direction orthogonal to the direction of movement of the can is rotated and the full tube signal is emitted and the coiler tube has reached a predetermined appropriate position, this detection signal By moving the empty can and empty can to replace the can, the sliver connected to the full can and the coiler tube passes through the center point of the rotation path of the coiler tube, and is drawn so as to match the moving direction of the can. It is stretched out between the full and empty cans so that it is located outside the A space is provided in the coiler plate, and the sliver stretched over the coiler plate is provided by a pressing means equipped with a cutting blade that appears in and out of the transfer path outside the can transfer path on the deviation side of the coiler tube. A method of cutting a sliver when exchanging cans, in which the sliver that has been pressed in between is cut with a cutting blade. 2. The appropriate position of the coiler tube when exchanging the can is within a range of 180 ° outside the dividing line drawn so as to pass through the center of the rotation locus of the rotating coiler tube and coincide with the moving direction of the can. A method of cutting a sliver at the time of replacement of a can according to claim 1.