JP2001261011A - Automatic packaging machine having function for countermeasures against liquid temperature change - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the seal packaging of a defective product as much as possible by taking a countermeasures to avoid harmful influences caused by the temperature change when the liquid temperature is monitored, and the liquid temperature deviates from a range of the preset upper and lower limits in seal-packaging various kinds of liquid. SOLUTION: When various kinds of liquid is seal-packaged by using heat sealers 5, 6, 7, the liquid temperature is monitored by a thermometer 2C, and if the liquid temperature exceeds the preset temperature range, countermeasures are taken including the notification, the stop, the discharge, the change of the heater temperature, and the change of the production speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an automatic packaging machine capable of continuously sealing and packaging various liquids using a packaging material (packaging film).
More specifically, the present invention relates to an automatic packaging machine having a function corresponding to a change in the temperature of a liquid to be sealed and sealed when the temperature of the liquid changes.

[0002]

2. Description of the Related Art In sealing and packaging various liquids such as edible or medicinal liquids using, for example, an automatic packaging machine as shown in FIG. 1, liquids temporarily stored in a tank 2 (not shown). Is set to 30 ° C. to 35 ° C., and the heat sealing temperature of the vertical heat sealer 5 is set to 175 ° C.
When the liquid temperature falls below 30 ° C. when the heat sealing temperature of each of the first and second horizontal heat sealers 6 and 7 is set to 130 ° C. and 80 ° C., respectively, For example, the sealing temperature of each of 6, 7 is 155 ° C.,
Since the temperature is lowered to 110 ° C. or 60 ° C. or less, there is a problem that the sealing temperature is insufficient and many defects such as receding of the sealing portion often occur.

On the other hand, when the liquid temperature rises to 35 ° C. or higher, the sealing temperature of each of the heat sealers 5, 6, and 7 rises, causing overheating and causing adverse effects such as foaming. There has been a problem that many defective products are sealed and packaged due to a decrease or increase in temperature.

[0004]

The problem of the liquid temperature is caused by the temperature control device 2 in the middle of the liquid flow path as shown in FIG.
B (cooling / heating device) to keep the liquid temperature in the initial setting range (3
(0 ° C. to 35 ° C.), but it is possible to solve the problem. However, providing the above-mentioned temperature control device 2B for each automatic packaging machine is extremely uneconomical and leads to high cost. Some liquids to be packaged are not suitable for forced heating or cooling, and their feasibility is poor.Therefore, there is no other way than to continue the packaging operation while monitoring the liquid temperature, especially in cold or tropical areas. Liquid seal packaging has a tougher set of problems.

Accordingly, a technical problem of the present invention is to monitor the liquid temperature in sealing and packaging various liquids, and to detect a change in the temperature when the liquid temperature deviates from a predetermined upper limit or lower limit. The purpose is to take measures to avoid the adverse effects and to minimize the seal packaging of defective products.

[0006]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

An automatic packaging machine configured to continuously seal and package various liquids using a packaging material,

(1) Temperature monitoring means for monitoring the temperature of the liquid to be sealed and packaged, and for avoiding adverse effects due to the temperature change when the liquid temperature deviates from a predetermined temperature range for each product type. Provision of avoidance measures to take immediate measures. (Claim 1)

(2) The countermeasures taken by the avoiding means include a countermeasure for notifying an abnormal temperature change, a countermeasure for stopping the operation of the automatic packaging machine, and an operation for counting the number of bags made of packaged products. Discharge means for discharging the packaged product to another route, or a change measure for changing the heater set temperature of the heat sealer or the rotation speed of the heat sealer based on a setting table. (Claim 2)

(3) Program input means configured so that the upper and lower limits of the liquid temperature can be set for each type of packaged product, key input means for selecting the type of packaged product to be sealed and packaged, and this key input Monitor the liquid temperature according to the program of the type selected by the means key input means,
When the liquid temperature deviates from a set temperature range, an avoidance control means for taking any of the above-described avoidance measures is provided. (Claim 3)

According to the means according to claim 1 described in the above (1), if the liquid temperature deviates from a temperature range predetermined for each product type, the avoidance means immediately takes measures to avoid the adverse effects due to the temperature change. Therefore, packaging of defective seal products due to temperature changes can be suppressed as small as possible, and damage can be reduced.

According to the means of claim 2 described in the above (2), when the measure taken by the avoiding means is a notification measure, the operation of the automatic packaging machine is stopped according to the notification, or the temperature of the heat sealer is reduced. Or reduce the packaging of defective products due to abnormal liquid temperature.If the countermeasure is to stop the operation, the packaging operation is automatically stopped to minimize the damage. enable.

Further, when the avoidance measure is a discharge measure,
Since the counting of defective products due to a change in the liquid temperature is stopped and discharged to another route, the mixing of defective products and counting errors can be prevented, and the countermeasure is to change the heater set temperature or the rotation speed of the heat sealer. If it is a change countermeasure, it is possible to adjust the problem of the sealing failure based on the change in the liquid temperature by changing the temperature or the speed so as to eliminate the production (bag making) of the defective sealing product.

According to the means of claim 3 described in the above (3), if the type of the packaged product is input using the key input means, the liquid temperature is monitored in accordance with the program of the type of the key input, It is possible to minimize the packaging of defective products due to temperature changes.

As described above, the above (1) to (1)
By solving the above technical problem by means of (3),
The problem of the conventional technique can be solved.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of an automatic packaging machine according to the present invention. In the drawing, 1 is an airframe, 2 is a tank containing a liquid as a filling material, 2P is a liquid supply pipe, 2A
Is a material filling pump provided in the middle of the pipe, 3 is a bag-making guide for bending a packaging material (not shown) sent from the reel 4 into a substantially U-shape, and 2P 'is the liquid supply pipe 2P. Shows the tip.

Further, 2C is a thermometer for monitoring the liquid temperature provided in the middle of the supply pipe 2P, and 2D is for turning on the supply of the liquid.
In the case of the figure, a temperature control device 2B is provided in the middle of the pipe 2P in the figure, but this is only described for the sake of convenience for explaining the above-mentioned conventional technology. , It is not installed in the actual automatic packaging machine.

Reference numerals 5, 6, and 7 denote a vertical heat sealer and first and second horizontal heat sealers vertically mounted on the front surface of the body 1, 8 denotes a notch, 9 denotes a perforated cutter, Numeral 10 denotes a separating cutter, and numeral 14 denotes a conveyor. 5a, 6a, 7a, 8a, 9a, and 10a are slack drive umbrellas for operating the vertical and horizontal roll sealers 5, 6, and 7 and the notch 8, and the perforations and cutters 9 and 10 for separating. The bevel gears 5a to 10a and the material filling pump 2A are numerically controllable pulse motors 5M, 6M, 6M, 8M, 9M, 1 shown in FIG.
0M, 2M, or a mechanism driven by each servomotor.

On the other hand, a keyboard 11 is provided with keys for inputting size data and temperature information determined for each packaged product (type No.) and for selecting a program, and 12 is a bag size or type, or a keyboard. , A display for displaying various setting data such as temperature information and various messages for operation, and a warning device 13 for displaying various caution signals, warnings, etc., or for generating a warning sound.

Reference numeral 15 denotes a discharging device (distributing device) provided at the lower side of the separating cutter 10. In the discharging device 15, the temperature of the liquid supplied through the pipe 2P is set in advance for each product type. When the temperature deviates from the upper limit or the lower limit, the discharge direction of the separated packaged product is switched to a direction different from the normal discharge direction, specifically, to a direction other than the conveyor 14, and defective products due to a change in liquid temperature are now detected. It is configured to be separated from the previous products.

Further, the keyboard 11 is provided with a data reading key 11 for setting a type as shown in FIG.
a, a writing key 11b, mode switching keys 11c and 11d, and data input keys 11e and 11f. As shown in the program data shown in FIG. Various data such as the temperature range (initial setting range) and the bag making speed (rotation speed of the heat sealer) or the seal temperature and the seal pressure of the heat sealer are controlled by key operations of the keyboard 11 to be described later. This is set in advance in the memory of the unit.

FIG. 2 is a block diagram showing an electrical configuration of an automatic packaging machine having a printing function according to the present invention equipped with a microcomputer. In FIG.
Reference numeral 1 denotes a memory ROM which stores a system program. An interface circuit 23 connected via a bus 22 to a control unit constituted by a CPU 20 and a memory 21 has a keyboard 11 including the display 12 described above. And heater H of each heat sealer 5, 6, 7
, A thermometer 2C, a solenoid valve 2D, an alarm device 13, a discharge device 15, and a counter 15A for counting the number of bags made, and further connected via a motor control circuit 24 with the vertical roll sealer 5, Second horizontal roll sealer 6,7
, Notch 8, and cutters 9 for perforation and separation,
10 and motors 5M, 6M, 7M, 8M, 9M, 10M, and 2M for operating the material filling pump are connected, and each is controlled and operated according to a program stored in the memory 21 under the monitoring of the CPU 20. It is structured to be.

FIG. 4 is a flow chart for explaining the processing procedure of the liquid temperature management by the automatic packaging machine having the liquid temperature change countermeasure function according to the present invention. In operation, the keyboard 11 is first operated. The type of the packaged product is input and set, and the seal packaging is performed with the input temperature setting for each type. In the first step S1, the liquid temperature is monitored by the thermometer 2C, and the liquid temperature and the set temperature are monitored. Compare with.

In the next step S2, it is determined whether or not the liquid temperature is within a set temperature range. If the liquid temperature is out of the range, the process proceeds to the next step S3, where the setting operation is determined, and the setting operation is executed. If the notification is "notification", the process proceeds to step S4 to activate an alarm device 13 such as a lamp or a buzzer to notify a staff member of an abnormality in the liquid temperature.

If the setting operation is "stop", the operation proceeds to step S5 to stop the operation of the automatic packaging machine, and if the setting operation is "automatic discharge", the operation proceeds to step S6 to reduce the number of bag making. The counting operation of the counter 15A for counting is stopped, and the discharging device 15 is switched to the discharging direction to discharge defective products caused by the abnormal liquid temperature.

On the other hand, if it is determined in step S2 that the temperature is within the set temperature range, the process proceeds to step S7, where the temperature / production speed table and the temperature / heater set value table previously set in the memory 21 are used. Then, each set value for a specific liquid temperature is obtained, and then the process proceeds to the next step S8, where the heater H of each of the heat sealers 5, 6, 7 is heated.
Or by changing the rotation speed of each heat sealer 5, 6, 7, that is, changing the production speed to the speed corresponding to the liquid temperature, by constantly adjusting the set temperature to the liquid temperature. It is configured to perform seal packaging under favorable conditions.

The processes in steps S7 and S8 are as follows.
It may be performed as a setting operation (measures) when it is determined in step S2 that the liquid temperature is outside the set temperature range, and the selection is arbitrary.

[0028]

As described above, according to the automatic packaging machine having the function of preventing liquid temperature change according to the present invention, when the temperature of the liquid for sealing and packaging rises or falls outside the set temperature range,
Immediately take various measures such as "notification", "stop", "automatic discharge", "change of set temperature", and "change of production speed". It has economic efficiency that can be reduced as much as possible.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of an automatic packaging machine having a function for preventing a change in liquid temperature according to the present invention.

FIG. 2 is a block diagram illustrating an electrical configuration of the present invention.

FIG. 3 is a configuration diagram illustrating a configuration of a keyboard.

FIG. 4 is a flowchart illustrating a processing procedure of the present invention.

FIG. 5 is a configuration diagram of a program for each product stored in a memory.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic packaging machine body 2 Tank 2P Liquid supply pipe 2C Thermometer 5, 6, 7 Heat sealer 11 Keyboard 13 Alarm device 15 Discharge device 15A Counter H Heater

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65B 57/18 B65B 57/18

Claims (3)

[Claims] An automatic packaging machine configured to continuously seal and package various liquids using a packaging material, wherein a temperature monitoring means for monitoring a temperature of the liquid to be sealed and packaged; An automatic device having a liquid temperature change countermeasure function characterized by comprising avoiding means for immediately taking countermeasures for avoiding the adverse effects due to this temperature change when the temperature deviates from the temperature range predetermined for each product type. Packaging machine. 2. The countermeasures taken by the avoiding means include: a countermeasure for notifying an abnormality of a temperature change; a countermeasure for stopping an operation of an automatic packaging machine; and stopping an operation of counting the number of bags made of a packaged product. Claims, characterized in that the measures are either discharge measures for discharging the packaged product to another route, or change measures for changing the heater set temperature of the heat sealer or the rotation speed of the heat sealer based on a setting table. An automatic packaging machine provided with the function for preventing liquid temperature change according to 1. 3. A program input means wherein the upper and lower limits of the liquid temperature can be set for each kind of packaged product, a key input means for selecting a kind of packaged product to be sealed and packaged, and the key input means And an avoidance control means for monitoring the liquid temperature in accordance with the program of the kind selected by the key input means and taking any of the above-described avoidance measures when the liquid temperature deviates from the set temperature range. 3. The automatic packaging machine according to claim 1, wherein the automatic packaging machine has a function for preventing a change in liquid temperature.