JP4111615B2 - Liquid feeder for automatic packaging machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of an automatic packaging machine capable of continuously sealing and sealing various liquids using a packaging film (packaging material). The present invention relates to a liquid supply apparatus suitable for use in seal packaging using a packaging machine.
[0002]
[Prior art]
When various kinds of liquids such as soups and seasonings are sealed and packaged using an automatic packaging machine, the liquid contained in the raw material tank (hopper) is heated as seen in, for example, JP-A-2-191129. After sending to a sterilizer and heat sterilization (low temperature sterilization at 100 ° C or lower), this is sent as it is to the automatic packaging machine with a filling pipe, so that the liquid is closed and sealed while preventing secondary contamination. It is configured.
[0003]
[Problems to be solved by the invention]
However, when the liquid is heated and sterilized in the closed state, a large amount of gas is generated, this gas becomes bubbles and covers the liquid surface, and this enters the inside of the filling pipe, so the liquid supply is very unstable. As a result, the supply amount (filling amount) to the automatic packaging machine becomes uneven, and as a result, there is a problem in that the amount of liquid to be sealed and wrapped varies.
[0004]
In addition, when the operation of the automatic packaging machine is temporarily stopped, the liquid being supplied stays in the supply device as it is until it restarts, so the liquid taste changes due to overheating in the heat sterilizer, There were also problems such as deterioration of properties.
[0005]
Therefore, the technical problem of the present invention is to eliminate bubbles generated after heat sterilization and stabilize the liquid, thereby uniformizing the amount of liquid supplied to the automatic packaging machine and eliminating variations in the amount of sealed packaging. At the same time, even when the operation of the automatic packaging machine is temporarily stopped, it is to prevent the taste and properties of the liquid remaining in the supply path from being altered.
[0006]
[Means for Solving the Problems]
Means taken in the present invention to solve the above technical problems are as follows.
[0007]
A liquid supply device for an automatic packaging machine configured to heat and sterilize and supply the liquid sealed and packaged by the automatic packaging machine,
[0008]
The liquid supply device is provided with a first pump for feeding the liquid in the raw material tank to the heat sterilizer side between the raw material tank containing the liquid and the heat sterilizer, and between the heat sterilizer and the automatic packaging machine. Provided a stable tank for temporarily storing and stabilizing the heat-sterilized liquid, and a second pump for feeding the stabilized liquid to the automatic packaging machine, and the liquid was fed between the second pump and the automatic packaging machine. When a return valve is provided in which liquid is sequentially sent back to the raw material tank side through a return path, and the automatic packaging machine is temporarily stopped , the liquid supply device controls the return valve to the return path side by the control unit of the automatic packaging machine. the switching, and, by operating the first pump and the second pump to the automatic packaging machine is restarted, it is controlled so that heat sterilization liquid can be filled quickly supplied to an automatic packaging machine, the self When the dynamic packaging machine is completely stopped , the liquid supply device switches the return valve to the return path side by the control unit of the automatic packaging machine , and stops the operation of the first pump and operates only the second pump. by the liquid remaining in the heating sterilizer and stability tank all sent back to the raw material tank is controlled so as not to leave the liquid in the supply device is characterized in Rukoto.
[0009]
According to the above means, when the operation of the automatic packaging machine is stopped immediately return valve is pasteurized I switched liquid sent back to the raw material tank, to continue until restart this circulation cycle operation, the liquid The quality of the liquid can be maintained without stagnation in the heat sterilizer, the inside of the stable tank, etc., and the taste and properties are not changed.
[0010]
Further, according to the above means, when the automatic packaging machine is completely stopped, the return valve is switched to the return pipe side, and then the operation of the first pump is stopped and only the second pump is operated, thereby heating. All the liquid remaining in the sterilizer and the stabilization tank is sent back to the raw material tank so that no liquid remains in the apparatus (in the circuit).
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a liquid supply apparatus for an automatic packaging machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating the whole of the present invention. No. 147305, etc., known automatic packaging machine, 1T is a control unit equipped with a microcomputer, etc., 2 is a raw material tank containing liquid WT such as soups and seasonings to be packed, 4 is a raw material tank Reference numeral 3 denotes a heat sterilizer that heats and sterilizes the liquid WT sent from 2 through the supply pipe P1 at a low temperature, and 3 denotes a first pump for supplying liquid provided in the middle of the supply pipe P1.
[0012]
5 is a stable tank provided between the heat sterilizer 4 and the automatic packaging machine 1, P2 is a supply pipe connecting the heat sterilizer 4 and the stable tank 5, and 6 is a gas vent attached to the stable tank 5. An exhaust port, 6 'is a filter provided at the exhaust port 6, and 7 is a water level detection leveler also provided in the stabilization tank 5. The water level leveler 7 and the first pump 3 are connected by a communication line F1. In addition, the water level in the stable tank 5 can be constantly maintained by the increase / decrease control, or the water level in the stable tank 5 can be changed to a desired water level.
[0013]
Further, in the figure, 8 is a second pump provided in the middle of the supply pipe P3 connecting the above-mentioned stable tank 5 and the automatic packaging machine 1, and 9 is a supply pipe similarly connecting the second pump 8 and the automatic packaging machine 1. A return valve P4 provided in the middle of P3 indicates a filling pipe that supplies the automatic packaging machine 1 with the heat-sterilized liquid sent through the return valve 9.
[0014]
The return valve 9 switches the liquid supply direction to the return pipe P5 side by a control signal sent from the control unit 1T through the communication line F2 when the operation of the automatic packaging machine 1 is temporarily stopped. Then, the supplied liquid is sent back to the raw material tank 2 side and circulated, and when restarted, the liquid is switched to the filling pipe P4 side again, and the heat-sterilized liquid is quickly supplied to the automatic packaging machine 1 It is structured to do.
[0015]
When the automatic packaging machine 1 is completely stopped at the end of the day, the return valve 9 is switched to the return pipe P5, and then the operation of the first pump 3 is stopped and only the second pump 8 is operated. Thus, all the liquid remaining in the heat sterilizer 4 and the stable tank 5 is sent back to the raw material tank 2 so that no liquid remains in the apparatus (in the circuit).
[0016]
The pumps 3 and 8 and the heat sterilizer 4 as well as the water leveler 7 and the return valve 9 described above are controlled and operated by the control unit 1T of the automatic packaging machine 1, for example. The processing procedure in the automatic packaging operation of the liquid supply apparatus for an automatic packaging machine will be described according to the flowchart shown in FIG.
[0017]
In the first step S1, the water level leveler 7 detects the water level in the stable tank 5, and then in step S2, it is determined whether or not the water level is the reference water level (set water level). If YES, the process proceeds to step S3. Then, the operation of the first pump 3 is continued as it is, and the process proceeds to step S4. If NO, the process proceeds to step S6, and the water supply operation of the first pump 3 is controlled and adjusted to the reference water level, and then the next step. Proceed to S4.
[0018]
In step S4, it is determined whether or not the operation of the automatic packaging machine 1 has been stopped. If NO (if the operation is continued), the process proceeds to the next step S5 and the return valve 9 is switched to the automatic packaging machine 1 side. In the state, the process returns to step S1 again and repeats the process. If YES (when operation is stopped), the process proceeds to step S7, the return valve 9 is switched to the raw material tank 2 side, and then the process returns to step S1 again. Repeat.
[0019]
Since the liquid supply apparatus for an automatic packaging machine according to the present invention is configured as described above, the liquid sterilized by the heat sterilizer 4 is once sent to the stable tank 5 and degassed from the exhaust port 6. After that, since the liquid is supplied to the automatic packaging machine 1 side, the heated liquid is supplied and supplied to the automatic packaging machine 1 side in a stable state in which foaming is suppressed, and the storage amount (water level) is stored in the stable tank 5. ) Is always kept constant by the water leveler 7, the amount of filling and supplying to the automatic packaging machine 1 can be made uniform.
[0020]
In addition, when the operation of the automatic packaging machine 1 is stopped, the return valve 9 is immediately switched to send the heat-sterilized liquid back to the raw material tank 2, and this circulation cycle is continued until the operation is restarted. The quality of the liquid can be maintained without stagnation in the inside of the sterilizer 4 or the stable tank 5 and the like, and the taste and properties are not changed.
[0021]
【The invention's effect】
As described above, according to the liquid supply device for an automatic packaging machine according to the present invention, since the heat-sterilized liquid can be filled and supplied to the automatic packaging machine without foaming in a stable state, the liquid filled in the seal bag Keeping the amount of the product always uniform, it is possible to provide a packaged product with no variation in the filling amount, and when the automatic packaging machine is temporarily stopped, the liquid can be circulated to prevent changes in taste, properties, etc. Therefore, it is always possible to safely provide a packaged product of a certain quality, and it is suitable for use as a soup or a seasoning packaging.
[Brief description of the drawings]
FIG. 1 is a configuration diagram illustrating an entire liquid supply apparatus for an automatic packaging machine according to the present invention.
FIG. 2 is a flowchart illustrating a liquid supply processing procedure according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Automatic packaging machine 2 Raw material tank WT Liquid 3 1st pump 4 Heating sterilizer 5 Stabilizing tank 6 Exhaust port 6 'Filter 7 Water leveler 8 Second pump 9 Return valve P5 Return pipe

Claims (1)

A liquid supply device for an automatic packaging machine configured to heat and sterilize and supply the liquid sealed and packaged by the automatic packaging machine,
The liquid supply device is provided with a first pump for feeding the liquid in the raw material tank to the heat sterilizer side between the raw material tank containing the liquid and the heat sterilizer, and between the heat sterilizer and the automatic packaging machine. Provided a stable tank that temporarily stores and stabilizes the heat-sterilized liquid and a second pump that sends the stabilized liquid to the automatic packaging machine, and the liquid was fed between the second pump and the automatic packaging machine. A return valve is provided in which the liquid is sequentially sent back to the raw material tank through the return path.
When the automatic packaging machine is temporarily stopped , the liquid supply device switches the return valve to the return path side by the control unit of the automatic packaging machine , and the automatic packaging machine restarts the first pump and the second pump. By operating until startup, it is controlled so that the heat-sterilized liquid can be quickly filled and supplied to the automatic packaging machine,
When the automatic packaging machine is completely stopped , the liquid supply device switches the return valve to the return path side by the control unit of the automatic packaging machine , and stops the operation of the first pump and only the second pump. by driving the liquid remaining in the heating sterilizer and stability tank all sent back to the raw material tank, the liquid automatic packaging machine, characterized in Rukoto is controlled so as not to leave the liquid in the supply device Feeding device.

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