JP3256736B2 - Spinneret cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus capable of efficiently cleaning a spinneret without much labor.

[0002]

2. Description of the Related Art A spinneret generally used for melt spinning of a thermoplastic polymer, when spinning is continued for a long time, causes a low volatile content in the thermoplastic polymer or silicon-based separation on the inner wall or periphery of the spinneret pores. Since the amount of fixed matter such as a mold agent increases, normal ejection is hindered, and the yarn is bent right under the mouthpiece, causing a yarn breakage. Therefore, the spinneret needs to be replaced periodically, and the removed spinner is reused after the adhered substance is washed away by some method. As an example of a typical die, a stainless steel disk type with a diameter of 70 mm,
Thickness 10 mm, number of pores 100, pore diameter 0.1-0.3
mm.

[0003] In a conventional apparatus for washing and regenerating a spinneret contaminated with a fixed substance, a horizontal stainless steel disk is rotatably provided in a liquid in an ultrasonic cleaning tank, and the disk has the same radius circle. For example, 18 holes for setting a base are provided on the periphery, and one or two ultrasonic cleaning chips are fixed vertically above the holes for setting the base. In the method of cleaning and regenerating the base, first, one base is set in the hole of the disk, and the base located below the cleaning chip is cleaned from above for a predetermined time, for example, 30 minutes. Since the base needs to be cleaned from both sides, the base is turned upside down and set, and the washing is performed for about 30 minutes in the same manner. When the ultrasonic cleaning of one base is completed, the stainless steel disk is rotated and the next base is cleaned. In addition, during the above-described cleaning time of 30 minutes, the cleaned base is taken out, blown with air and dried, and a base requiring another cleaning is set in the opened hole. In this way, the setting of the base, washing, turning over, washing, taking out of the base, setting of the base requiring cleaning, and air blowing and drying were repeated, and the base was cleaned and regenerated.

[0004]

However, in the conventional apparatus and method, since each operation other than the ultrasonic cleaning is performed manually, unless at least one worker is attached to the machine almost all day. The challenge was not to be left.

An object of the present invention is to provide an apparatus capable of automatically cleaning a contaminated spinneret without requiring a large amount of manpower.

[0006]

The present invention has the following configuration to achieve the above object. That is, the spinneret cleaning device of the present invention includes a conveyor for conveying a spinneret to be cleaned in a certain direction, an ultrasonic cleaning device provided near the conveyor, and a ultrasonic cleaning device provided near the ultrasonic cleaning device.
A dryer that blows air on both sides of the base to dry it, and holds the base that has been conveyed to a predetermined supply position by the conveyor and conveys it to the position of the ultrasonic cleaning device .
And the base cleaned by the ultrasonic cleaning apparatus.
To the position of the dryer, further by the dryer
Operate to return the dried base to the conveyor
And a base chuck .

[0007]

The used spinneret supplied on the conveyor is gripped by the die chuck at a predetermined position, carried to the position of the ultrasonic cleaning device, and cleaned. When washing is completed,
The die chuck holding the die moves to the dryer position
Then, air is blown by the dryer to be dried. The spinneret after drying is returned to the conveyor and carried out by the conveyor.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention shown in the drawings will be specifically described below. As shown in the figure, the spinneret cleaning device 1 includes an ultrasonic cleaning device 2, an air spray dryer 3, and a die chuck provided between the two so as to be able to reciprocate along a slide cylinder 21. 22, a feed conveyor 4 provided so as to intersect below the slide cylinder, a stock conveyor 5 provided so that a die 8 to be washed can be supplied from a side to an upstream portion 41 of the feed conveyor, washing and drying It comprises a discharge conveyor 6 provided so as to be able to receive the die 8 sent to the downstream portion 47 of the feed conveyor from the feed conveyor, and a control device C for controlling the automatic operation of the whole.

The stock conveyor 5 has a base 8 to be cleaned.
, P are gate pins P1,..., P for feeding a plurality of (8 in the illustrated example) wide side-by-side conveyers 8 on the feed conveyer 4 in a row.
2, ... are provided so as to face each other at an interval in front and rear. The front and rear gate pins P1 and P2 are supported by a support frame 7 provided above the conveyor 5, and are vertically moved up and down by an air cylinder. That is, when the bases 8 are sent by the conveyor 5 in a state where the front gate pins P1,... Are lowered and the rear gate pins P2,. Stops on the gate pins P1,..., And the subsequent base row also stops. Next, the rear gate pins P2,... Move down to regulate the movement of the second and subsequent rows, and the front gate pins P1,. Release regulations. Thereby, the caps can be supplied one by one to the upstream portion 41 of the feed conveyor in order from the front row. The width of the conveyor does not need to be limited to this embodiment, and the number of bases in a row is 1 to 1
It is also possible to use ten.

The feed conveyor 4 is a belt conveyor in which three thin belts 42, 42, 43 are arranged. The feed conveyor 4 is supplied from the stock conveyor 5 and has a plurality of bases 8,... From the cleaning supply position 10 one by one. As shown in FIG. 5, the belt 43 at the center of the feed conveyor is provided in a recessed shape at the cleaning supply position 10, and the lift cylinder 24 is provided in the space of the recess. Also, in the position of this dent,
Gate cylinders 9,... For surely stopping the mouthpiece sent by the feed conveyor 4 are provided.
When the base 8 is conveyed to the supply position 10, it extends and stops the base at that position. The lift cylinder 24 mounts the base 8 sent to the cleaning supply position 10 and rises to a height at which the base chuck 22 can grip the base. The lift cylinder 24 normally stands by at a contracted position lower than the upper surface of the feed conveyor 4.

The ultrasonic cleaning device 2 comprises an ultrasonic transmitter 11 on the upper side and an ultrasonic horn 1 attached to a lower part thereof.
2, an ultrasonic cleaning tank 13 containing cleaning water, and a lower ultrasonic transmitter 15. The ultrasonic cleaning tank 13 is provided so as to be able to move up and down by a cylinder 14.

The air spray dryer 3 is provided with two upper and lower air nozzles 32, 32 at the tip of a cylinder 31. Usually, the cylinder is contracted and is at a standby position away from the conveyor 4, and the cylinder is dried at the time of drying the base. When the nozzle 31 extends, the nozzles 32 advance to the supply position 10 and blow hot air from above and below onto the base 8 held horizontally by the base chuck 22.

The mouthpiece chuck 22 is provided so as to be able to reciprocate between the position of the ultrasonic cleaning device 2 and the supply position 10. Can be gripped and released. That is, as shown in FIGS. 3 and 4, a slide cylinder 21 is provided between the ultrasonic cleaning device 2 and the supply position 10, and the chuck operating unit 23 and the die chuck 22 reciprocate in the slide cylinder. It is provided as possible.

The discharge conveyor 6 is provided beside the downstream portion 47 of the feed conveyor, and is adapted to carry out the base 8 transferred from the feed conveyor 4. At the side of the downstream part of the feed conveyor, a cylinder 4
An extruding device 50 comprising a push plate 8 and a push plate 49 is provided, and the push plate 49 which advances by the extension of the cylinder 48 transfers the ferrules 8,... On the feed conveyor 4 onto the discharge conveyor 6. .

Next, the operation of the spinneret cleaning apparatus of the present invention will be described. Place the bases 8,... Which need to be cleaned on the stock conveyor 5, and press the start button of the control device C. At this time, if the base 8 is not on the feed conveyor 4, the stock conveyor 5 supplies the six front bases to the feed conveyor 4, and if the base is on the feed conveyor, a sensor (not shown) In order to detect this, the feed conveyor moves without moving the stock conveyor 5. When the top die on the feed conveyor moves to the supply position 10, a sensor (not shown) detects this, and the feed conveyor 4 stops.

The lift cylinder 24 moves up to lift the base 8 to a predetermined height. The mouthpiece chuck 22 waiting above holds the mouthpiece 8 horizontally, and moves above the ultrasonic cleaning tank 13. The lift cylinder 24 descends and returns to the standby position below the feed conveyor surface.

After the base chuck 22 moves to a position above the ultrasonic cleaning tank 13 and stops, the ultrasonic cleaning tank 13 moves up together with the cylinder 14, and the base 8 and the ultrasonic horn 12 held by the base chuck 22 are separated. The rising of the ultrasonic cleaning tank 13 stops in a state of being immersed in water. Next, the ultrasonic transmitters 11 and 15 start transmitting, and ultrasonic cleaning is performed for a predetermined time.

When a predetermined ultrasonic cleaning time has elapsed, the transmission of the ultrasonic transmitter is stopped, and the ultrasonic cleaning tank 13 is lowered to the original position. Then, the base 8 is held at the supply position 10 while being held by the base chuck 22. Move to and stop.

After the cylinder 31 of the air blow dryer 3 is extended and the nozzle 32 moves up and down the nozzle, hot air (or cold air) blows out from the nozzle 32, and the nozzle is air-dried from above and below for a predetermined time. . During this time, the nozzle 32
By reciprocating the cylinder 31 within the diameter of the base, the entire base can be uniformly dried.

When the drying of the base is completed, the blowing of the drying air stops, the cylinder 31 contracts, and the nozzle 32 of the air blowing dryer returns to the standby position.

When the lift cylinder 24 rises and comes into contact with the washed and dried base 8, the base is released from the base chuck 22, and moves down on the lift cylinder 24 to get on the feed conveyor 4 at the supply position, and the feed conveyor moves. Then, it is conveyed to the downstream part 47, and at the same time the subsequent base 8 to be cleaned is carried to the supply position 10.

As described above, the bases 8 are washed and dried one by one. When a predetermined number, for example, six, of the washed and dried bases accumulate in the downstream portion 47 of the feed conveyor 4, the extrusion cylinder 48 is extended, the bases are pushed by the push plate 49, and moves onto the discharge conveyor 6, and reaches a predetermined position. It is carried out. The width of the discharge conveyor 6 does not need to be limited to this embodiment,
The number of bases arranged side by side can be set to 1 to 10.

The control device C can control these automatic operations. In the illustrated example, the ultrasonic cleaning tank is moved up and down so that the base is immersed in the liquid. However, instead of moving the washing tank up and down, the base chuck and the horn may be moved up and down.

[0024]

As is evident from the above description, the spinneret cleaning apparatus according to the present invention can clean the spinneret with almost no manual operation, and can save labor. It became. It is clear that the apparatus of the present invention can be used for cleaning other articles having pores, such as a drawing die.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a spinneret cleaning apparatus of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view of the main part, showing a state during ultrasonic cleaning.

FIG. 4 is a side view of the main part, showing a state during spraying and drying with hot air after washing.

FIG. 5 is an explanatory diagram of a feed position of a feed conveyor.

[Explanation of symbols]

 Reference Signs List 1 spinneret cleaning device 2 ultrasonic cleaning device 3 air blow dryer 4 feed conveyor 5 stock conveyor 6 discharge conveyor 8 die 13 ultrasonic cleaning tank 22 die chuck 24 lift cylinder 32 air blowing nozzle

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-88715 (JP, A) JP-A-50-123911 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D01D 4/04

Claims (2)

(57) [Claims] 1. A conveyor for transporting a spinneret to be cleaned in a certain direction, an ultrasonic cleaning device provided near the conveyor, and an ultrasonic cleaning device provided near the ultrasonic cleaning device, on both sides of the spinneret. A dryer that blows air to dry and a die that has been conveyed to a predetermined supply position by the conveyor are grasped.
Lifting to together when conveyed to the position of the ultrasonic cleaning device
Then, the base cleaned by the ultrasonic cleaning apparatus is dried.
Transported to the dryer location, and further dried by the dryer.
A die that operates to return the broken die to the conveyor
An apparatus for cleaning a spinneret, comprising: 2. The spinning device according to claim 1, wherein the ultrasonic cleaning device has a vertically movable cleaning tank, and the nozzle is raised when the nozzle is transported to a position immediately above the nozzle, and the nozzle is immersed in the cleaning liquid. Cleaning device for bases.