JPH0623594Y2 - Automatic liquid preparation device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to an automatic liquid preparation device, and more particularly to an automatic liquid preparation device equipped with a cleaning device for its raw material supply system.

[Prior art and its problems]

In the dyeing industry, a wide variety of test dyeings are performed using dyes experimentally prepared by an automatic liquid preparation device as a pre-stage of actual dyeing. The conventional automatic liquid preparation equipment prepares raw materials such as various dye liquids from each raw material tank by a syringe-like dispenser to extract a predetermined amount of raw material and inject them into each dye pot. It was done by mixing. By the way, in each of these dyeing operations, when a new dye is to be replaced, it is necessary to completely wash away the dyes that have adhered to the raw material tank, the dispensing means, and the other raw material supply system. I won't. Conventionally, in this cleaning work, rough cleaning is performed by filling the raw material tank with the cleaning liquid and passing it through the raw material supply system including the dispenser.However, this cleaning alone causes the cylinder and piston of the dispenser to slide. The dye adhering to the part was not easily washed off, and therefore the dispenser had to be removed from the raw material supply system and separately cleaned, and it was compelled to spend a lot of time on the work.

[The purpose of the device]

The present invention has been devised in order to effectively solve the above-mentioned problems of the prior art. Therefore, an object of the present invention is to provide an automatic liquid preparation device which can easily clean the sliding portion of the cylinder and the piston without removing the dispenser from the raw material supply system when exchanging the raw material.

[Means for Solving the Problems]

The automatic liquid preparation device according to the present invention has the following structure in order to solve the problems of the conventional techniques as described above and achieve the object. That is, raw material tanks for separately storing raw materials such as dyes, auxiliaries, and water of various colors, a cylinder whose tip portion is connected to each of the raw material tanks by a pipe line and which is installed substantially horizontally, and the inside of the cylinder. Dispensing for extracting a fixed amount of raw material from each of the raw material tanks by reciprocating the tip end surface of the piston from the tip end of the cylinder to the first position in the cylinder. Means and an injection means for receiving the raw material from the dispensing means through the conduit and separately injecting the raw material into each staining pot that is sequentially transferred to a predetermined injection position, and is imposed on a plurality of chromosomes In the automatic liquid preparation device that mixes the raw materials so as to exhibit a color, the cylinder includes a supply port located on the base end side of the first position and a bottom part on the base end side of the supply port. Located discharge port And a cleaning liquid first supply means which is connected to the supply port and can selectively supply the cleaning liquid and compressed air from the supply port to the inside of the cylinder; And a cleaning liquid second supply unit for dropping the cleaning liquid onto a portion of the piston that is disposed above and extends outward from the cylinder.

[Action and effect]

In the automatic liquid preparation apparatus according to the present invention, when the raw material supply system is cleaned along with the raw material exchange, the raw material tank to be exchanged is first replaced with the cleaning liquid tank as the first step of the cleaning, and the By reciprocating the piston between the tip position in the cylinder and the first position, the cleaning liquid is passed through the pipeline of the raw material supply system to clean the flow portion. Next, as a second stage, the piston is retracted to a second position which is an intermediate position between the supply port and the discharge port, only the supply system port is opened in the cylinder, and the cleaning liquid is introduced from the supply port by the cleaning liquid first supply means. After that, compressed air is also discharged from this supply port to clean the inside of the cylinder and the pipeline of the raw material supply system by air flushing. After completion of the second-stage cleaning, the piston is further retracted to the third position behind the discharge port, and the cleaned cleaning liquid is discharged from this discharge port. If the base end portion of the cylinder is slightly lower than the front end portion, it is easy to discharge the cleaning liquid that has been cleaned. In parallel with the first step and the second step, the cleaning liquid is dropped from the cleaning liquid second supply means, and the cleaning liquid is applied to the outer peripheral portion of the piston extending outward from the cylinder with the reciprocating motion. As described above, the sliding portion of the cylinder and the piston can be easily cleaned without removing the dispenser from the raw material supply system, and the time required for the cleaning work can be shortened.

【Example】

A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing a schematic configuration of a cleaning mechanism of an embodiment according to the automatic liquid preparation device of the present invention. In the figure, 1 is a dispenser as a dispensing means, which is composed of a cylinder 2 and a piston 3. In the figure, 4 is a raw material tank for storing stock solutions and the like, and 5 is a dyeing pot. Piping X from the raw material tank 4 to the tip 7 of the cylinder 2 via the first three-way valve 6.
And a pipe Z. The pipe X is connected to one switching port of the first three-way valve 6, and the pipe Z is connected to the common port. Further, one end of the pipe Y is connected to the remaining switching port of the first three-way valve 6 and the other end is connected to an injection nozzle 8 as an injection means or forms the nozzle 8 itself. The piston 3, which slides in the cylinder 2, reciprocates between the tip portion 7 of the cylinder 2 and a first position indicated by P ₁ in the drawing, thereby performing normal raw material extraction and injection. A supply port 9 is formed in the upper portion of the cylinder wall at a position rearward of the first position P ₁ of the cylinder 2. The supply port 9 is connected to a pipe of the cleaning liquid first supply means 10 that can switch and supply the cleaning liquid and compressed air.
A second three-way valve 11 is provided midway in the pipeline. The common port of the second three-way valve 11 is connected to the supply port 9 side, one of the switching ports is connected to the cleaning liquid tank 12 having a pressure of 0.2 kg / cm ² , and the other switching port is connected to the opening / closing valve 20. It is connected to a compressor 13 which is a compressed air supply source of 0.5 kg / cm ² . A discharge port 14 is formed at the bottom of the cylinder wall at a position further rearward of the supply port 9 and is connected to a discharge facility (not shown). Immediately above the piston insertion port of the cylinder 2, the supply port of the cleaning liquid second supply means 15 is opened immediately above to allow the cleaning liquid to drip to the piston 3 that is extracted and extends outward from the cylinder 2. Has been done. An on-off valve 21 is provided immediately above this supply port. Reference numeral 16 in the drawing denotes a piston driving means, and one end of an actuator 18 which is reciprocally moved in the reciprocating direction of the piston 3 by being screwed into a ball screw 17 driven by a motor is detachably attached to one end of the piston 3 via a floating joint 19. It is installed. The cleaning of the raw material supply system by the cleaning mechanism configured as described above is performed as follows. First of all, raw material tank 4
Is replaced with the cleaning liquid tank 22, or the cleaning liquid is added to the material tank 4 by emptying the raw material in the tank.
The first three-way valve 6 is switched so that the pipe X and the pipe Z communicate with each other. At this time, the piston 3 is inserted to the innermost position, that is, the most distal end portion in the cylinder 2, and then the piston 3 is retracted to reach the first position in the cylinder 2 and the cylinder 2 is filled with the cleaning liquid. In this position, both the supply port 9 and the discharge port 14 are blocked by the piston 3.
Then, the first three-way valve 6 is switched so as to connect the pipe Y and the pipe Z, the piston 3 is inserted again to the innermost portion in the cylinder 2, and the cleaning liquid in the cylinder 2 is injected through the pipe Z and the pipe Y. Emitted from 8. This step is performed twice as a first step for about 15 seconds once. During this first step, the cleaning liquid is dropped from the cleaning liquid second supply means 15 onto the portion of the piston 3 that is extracted from the cylinder 2 to the rear outside, and the sliding portion on the outer peripheral surface of the piston 3 is cleaned. As the next second step, the piston 3 in the cylinder 2 has a second end surface between the supply port 9 and the discharge port 14
It is retracted to the position P ₂ . At this time, with respect to the portion of the piston 3 which is newly extracted from the cylinder 2 to the rear outside, the cleaning liquid is dropped from the second cleaning liquid supply means 15, and the new sliding portion is cleaned. First three-way valve 6
Is switched so that the pipe X and the pipe Z are communicated with each other, and the second three-way valve 11 is communicated with the cleaning liquid supply state so that the cylinder 2 is filled with the cleaning liquid. Then the second three-way valve 11
Is switched to the compressed air supply state, the on-off valve 20 is also opened, and compressed air is discharged from the supply port 9 into the cylinder 2. Therefore, the inside of the cylinder 2 and the inside of the pipes Z and X are completely cleaned by air flushing. In particular, the dye and the like adhering to the intricate parts in the first three-way valve 6 are completely washed by this air flushing. This second
The process is also performed twice for about 20 seconds each. In the third step, cleaning is performed twice by air flushing, which is almost the same as in the second step, but only the first three-way valve 6 is piped Y.
And the pipe Z are communicated with each other. Finally, the piston 3 retracts its tip to a third position further rearward of the discharge port 14 and discharges the cleaning liquid remaining in the cylinder 2 and the pipe Z from the discharge port 14 to complete the entire cleaning process. To do. At the time of this discharge, there is a portion of the piston 3 that is pulled out further rearward from the cylinder 2 than the second and third steps. Done. According to each of the above steps, cleaning can be performed without removing the dispenser 1, and the time required for the operation can be completed in about 2 minutes.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of a cleaning mechanism of an embodiment according to the automatic liquid preparation device of the present invention. DESCRIPTION OF SYMBOLS 1 ... Dispenser as dispensing means, 2 ... Cylinder, 3 ... Piston, 4 ... Raw material tank, 5 ... Dyeing pot, 8 ... Injection nozzle as injection means, 9 ... Supply port, 10 ... Cleaning liquid first supply means , 14 ... exhaust port, 15 ... washing liquid second supply means, P ₁ ... the first position, X, Y, piping as Z ... conduit

Claims (1)

[Scope of utility model registration request] 1. A raw material tank (4) for separately storing raw materials such as dyes, auxiliaries, water, etc. of various colors, and a tip portion connected to each of the raw material tanks (4) by pipes (X, Z). (2) installed substantially horizontally and the cylinder
(2) consists of a piston (3) that slides inside the piston
The tip surface of (3) is from the tip (7) of the cylinder (2) to the cylinder (2).
Dispensing means (1) for extracting a certain amount of raw material from each of the raw material tanks (4) by reciprocating up to the first position (P ₁ ) in the inside, and a pipe from the dispensing means (1). Dyeing pots (5) that receive raw materials through the passages (Y, Z) and are sequentially transferred to predetermined injection positions separately
And an injection means (8) for injecting the raw material, and in the automatic liquid preparation device for mixing the raw materials so as to exhibit a color imposed on a plurality of chromosomes, the cylinder (2), the first position A supply port (9) located on the base end side of (P ₁ ) and a discharge port (14) located on the bottom of the base end side of the supply port (9) are opened, A cleaning liquid first supply means (10) connected to the supply port (9) and capable of selectively supplying the cleaning liquid and compressed air from the supply port (9) into the cylinder (2), and the base of the cylinder (2). A cleaning liquid second supply means (15) for dropping the cleaning liquid onto a portion of the piston (3) extending outwardly from the cylinder (2), the cleaning liquid second supplying means (15) being disposed above the end portion. An automatic liquid preparation device.