JP3406153B2 - Operation control method and apparatus for vacuum packaging machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum packaging machine for carrying out hermetic packaging by placing food or the like in a heat-adhesive bag-shaped member and degassing and heat-sealing, and particularly to a method of controlling its operation and It relates to the device.

[0002]

2. Description of the Related Art In a so-called vacuum packaging machine in which food or the like is placed in a heat-adhesive bag-shaped member, the inside of the bag-shaped member is deaerated and depressurized, and then heat-sealed, the so-called vacuum packaging machine Generally, the following steps are performed. That is, a bag-shaped member having a one-side opening containing a product to be packaged, such as food, is placed in a chamber that can be depressurized and is connected to a vacuum pump via an appropriate pipe. At that time, the opening side to be closed is
It is placed in a heat sealable position. The lid of the chamber is closed, and an operation called a deaeration step, that is, an operation of activating the vacuum pump to discharge the gas in the chamber is performed. Next, the pressure sensor detects that the pressure in the chamber communicating with the inside of the bag-shaped member has reached a predetermined pressure, and thereafter, an operation called a sealing step, that is, a heat sealing device is used to open the bag-shaped member. The operation of closing the edge is performed. Finally, the atmosphere release valve connected to the pipe is opened to return the pressure in the chamber to atmospheric pressure so that the lid can be easily opened, and then the sealed bag-shaped member is taken out.

Further, after the inside of the chamber and the bag-shaped member is degassed as described above, a gas such as an inert gas is sealed in the same chamber and further in the bag-shaped member (gas filling step). After that, various types of vacuum packaging machines equipped with a gas sealing device for heat-sealing the bag-shaped member are known.

In the former vacuum packaging machine, in order to meet various needs of users, the length of each process can be arbitrarily extended or stopped during the vacuum packaging operation. It is known that a switch circuit is connected to various devices related to the execution of each process. For example, there is one in which a degassing time extension switch and a degassing stop switch are provided to change the length of the degassing process or to stop the degassing process midway.

Further, another former type of vacuum packaging machine is provided with two kinds of switches called a holding or hold switch and a jump or jump switch,
When the hold switch is activated, even if the vacuum timer that controls the vacuum pump is activated, do not move to the next degassing process, or if the jump switch is activated, the vacuum timer is not activated. However, there is one that moves to the next degassing step.

[0006]

However, in the conventional vacuum packaging machine, in order to control the degassing process, as described above,
Since each switch was adopted separately, this is a factor that hinders the reduction of manufacturing cost.Also, the operating part of each switch is provided on the control panel exposed to the outside of the vacuum packaging machine. If there are a large number of switches, not only is it an adverse effect on downsizing, but it is also easy to cause erroneous operation, so improvements have been desired. Accordingly, it is an object of the present invention to provide a control method and apparatus for enabling at least two functions in a vacuum packaging machine to be performed with a single switch.

[0007]

In order to achieve the above object, the operation control method according to the present invention as set forth in claim 1,
It has an openable and closable lid that cooperates with the main body to define a vacuum chamber, closes the lid to start a deaeration process controlled by a vacuum timer, and a seal timer is used when the vacuum timer times out. One hold / jump switch is provided to control the operation of the vacuum packaging machine to start the controlled sealing process, and the hold / jump switch is turned on during the degassing process.
Hold / jump switch is the time of the vacuum timer
If the vacuum timer is turned off before
The hole that was turned on during the degassing process after the degassing process was interrupted without moving
The jump jump switch increases the time of the vacuum timer
If the vacuum timer is not turned off by the time
Turn off the hold jump switch even if
The degassing step is continued until

The operation control method according to the second aspect of the present invention is directed to a vacuum packaging machine that performs a gas filling step after a deaeration step. In this case, it has an openable / closable lid that cooperates with the main body to define a vacuum chamber, closes the lid to start a deaeration process controlled by a vacuum timer, and when the vacuum timer times out. One hold / jump switch is provided for controlling the operation of the vacuum packaging machine, which starts the gas charging step controlled by the gas timer and starts the sealing step controlled by the seal timer when the gas timer is up. The hold jump turned on during the degassing process or the gas charging process.
The switch is the time of the vacuum timer or the gas timer.
If turned off before up, the vacuum timer or before
Serial Gasutaima is interrupted the without time-up deaeration step or the gas enclosing step proceeds to the next step, the
The ho which is turned on during the degassing step or the gas charging step.
The jump switch is the vacuum timer or the gas.
If it is not turned off by the time of the timer,
The vacuum timer or the gas timer has timed out
Also until the hold jump switch is turned off
The deaeration process or the gas charging process is continued .

In the operation control device according to the present invention as defined in claim 3, there is provided an openable / closable lid which cooperates with the main body to define a vacuum chamber, and the lid is closed and controlled by a vacuum timer. A device for controlling the operation of a vacuum packaging machine, which starts a deaeration process and starts a sealing process controlled by a sealing timer when the vacuum timer times out,
One hold electrically connected to the vacuum timer
The jump switch and the switch that was turned on during the degassing process.
Hold / jump switch is the time of the vacuum timer
If the vacuum timer is turned off before it is turned off before
Means for interrupting the degassing process and shifting to the sealing process even if it is not installed, and the heater turned on during the degassing process.
The field jump switch is used for the vacuum timer.
If the vacuum timer does not turn off before
Turn off the hold jump switch even if
And a means for continuing the deaeration process .

Further, the operation control device according to the present invention according to claim 4 has an openable / closable lid body which cooperates with the main body to define a vacuum chamber, and the lid body is closed and controlled by a vacuum timer. The operation of the vacuum packaging machine that starts the degassing step, starts the gas filling step controlled by the gas timer when the vacuum timer times out, and starts the sealing step controlled by the seal timer when the gas timer times up. A holding device electrically connected to the vacuum timer and the gas timer.
The jump switch and the hold jump switch that was turned on during the degassing process or the gas charging process are in front of each other.
Note: Before the vacuum timer or the gas timer expires,
If the vacuum timer or the gas timer is
Means for shifting to the next step without Imuappu to interrupt the degassing step or the gas enclosing step, the degassing Engineering
Or the hold turned on during the gas charging step.
The jump switch is the vacuum timer or the gas timer.
If it is not turned off by the time of
Even if the timer or the gas timer times out, the ho
The degassing process or until the cold jump switch is turned off.
Means for maintaining the gas filling step .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
In the drawings, the same reference numerals indicate the same or corresponding parts.
FIG. 1 is a circuit diagram showing an embodiment of an operation control device of the present invention which is implemented in a vacuum packaging machine. In FIG. 1, what is connected in series to a power source (not shown) is a leakage breaker indicated by a reference sign ELB. And various parallel circuits are connected to it. First, from the left in the drawing, the bag-shaped member (not shown) and the vacuum pump VP for degassing the vacuum chamber are the normally open contacts M of the vacuum pump protector OL and the power relay MS.
Connected via S1 (C represents a capacitor), and then the lid of the vacuum packaging machine (not shown) after the end of the hermetic packaging.
In order to facilitate the opening of the vacuum chamber, an atmosphere opening valve SV1 is connected via a normally closed contact X12 of a relay X1 to be described later in order to introduce the atmosphere into the vacuum chamber. The transformer TR is connected via the normally open contact X41 of the relay X4, and the seal heater H1 for heat-sealing the above-mentioned bag-shaped member is provided on the secondary side of the transformer TR.

Further, S1 is an opening / closing switch such as a limit switch which is turned on / off when the lid is opened / closed. As is well known, the opening / closing switch S1 is connected to a contact NO when the lid is closed. When opened, it is connected to the contact NC. To the contact NO, a parallel body of the power relay MOSHICHA magnet switch MS and the relay X1 is connected via the normally closed contact TM31 of the cooling timer TM3. The cooling timer TM3 is a timer for controlling the time for cooling the heat wire (not shown) after the heat sealing. On the other hand, the normally open contact TM of the cooling timer TM3
A case heater H2 is connected to 32.

A vacuum valve SV provided on a pipe (not shown) of the above-mentioned vacuum pump VP is connected in parallel to the series body of the case heater H2 and the normally open contact TM32.
2 and a normally open contact X13 of the relay X1 and a normally closed contact X24 of the relay X2, and the contact NC of the opening / closing switch S1 described above is connected to the vacuum valve SV.
2 and the normally open contact X13. The series body connected to the line whose one end extends from between the normally open contact X13 and the normally closed contact X24 as shown in the drawing is a vacuum timer TM1, a first normally open contact S21 of the hold / jump switch S2, and a relay X3. Normally closed contact X32, and the other end of the above line has a contact S21 and a vacuum timer TM.
It is connected between 1 and 1. L is a vacuum lamp.

The hold / jump switch S2 is
A second normally open contact S22 interlocking with the contact S21 described above,
A normally closed contact S23 is further included, and a relay X3 is connected in series with both contacts. A relay X2 is connected to a line extending between the contacts S22 and S23, and the relay X2 is connected to a parallel body of the normally open contact X23 and the normally open contact TM11 of the vacuum timer TM1. As such a hold / jump switch, for example, a two-pole double-throw switch that performs a momentary operation is suitable, and as will be described later, the process can be maintained and extended while the operator is pressing the switch. Yes, if the pressing is released, it is possible to move to the next step.

Finally, in parallel with both contacts S22 and S23,
The normally open contact X31 of the relay X3 described above is provided, and a series body of the seal valve SV3 and the normally open contact X21 of the relay X2, a line including the seal timer TM2, and a normally open contact of the seal timer TM2 are provided in series with the contact X31. Closed contact TM21 and relay X4 in series, seal timer TM
The two normally open contacts TM22 and the serial body of the cooling timer TM3 are connected in parallel with each other.

The operation of the vacuum packaging machine having the control circuit of the operation control device having the above-described structure is shown in FIG.
In addition to this, description will be made with reference to the timing charts of FIGS. First, in the normal operation (FIG. 2), the earth leakage breaker ELB is on, the bag-like member to be heat-sealed is put in a vacuum chamber (not shown), and the lid (not shown) is closed to open and close. The switch S1 is turned on and connected to the contact NO, the power relay (magnet switch) MS is turned on, the normally open contact MS1 is closed, and the vacuum pump V
P starts. At the same time, the relay X1 is excited and its normally closed contact X12 is opened to open the atmosphere release valve SV1.
Is closed, the normally open contact X13 is closed, the vacuum valve SV2 is opened, and vacuuming is performed (deaeration process). Further, the vacuum timer TM1 is turned on via the normally closed contact X24.

When the set time of the vacuum timer TM1 set to perform sufficient deaeration is up, the contact TM11 is closed and the relays X2 and X3 are excited,
As a result, the normally closed contact X24 is opened and the vacuum valve SV2
Is closed, the normally open contact X21 is closed and the seal valve SV3 is opened. In addition, the normally open contact X31 of the excited relay X3 is closed, so that the normally closed timer contact TM2 is closed.
Relay X4 is turned on via 1 and its normally open contact X4
1 is closed, the seal heater H1 is energized, and the bag-shaped member is heat-sealed (sealing step). Also, contact X3
With the closing of 1, the seal timer TM2 is turned on.

When the seal timer TM2 expires, its normally closed contact TM21 is opened, the relay X4 is demagnetized, the seal heater H1 is turned off, and the sealing process is completed. At the same time, the cooling timer TM3 is turned on by closing the normally open contact TM22. When the set time of the cooling timer TM3 has elapsed, the normally closed contact TM31 is opened, the magnet switch MS and the relay X1 are turned off, the vacuum pump VP is stopped, and the atmosphere opening valve SV1 is opened. Further, energization of the case heater H2 installed in the vacuum pump starts.

When the lid is opened in anticipation of the time when the inside of the vacuum chamber has returned to atmospheric pressure due to the opening of the atmosphere opening valve SV1, the opening / closing switch S1 is turned off, the contact NC is connected, and the vacuum valve SV2 is opened. Valve, relay X2, X
3, the seal timer TM2, and the cooling timer TM3 are turned off, and the initial standby state is restored.

Next, a control method by using the hold / jump switch S2 will be described. 1 and 3
In, magnet switch MS and power relay X1
Is turned on, that is, the power relay X2 is deenergized, the vacuum timer TM1 is energized through the normally closed contact X24, the vacuum pump VP is activated, and the vacuum valve SV2 is opened. When the hold / jump switch S2 is pressed, its normally open contact S22 is closed and the relay X2 is excited, and the normally closed contact X24 is opened, but the other normally open contact S2 of the hold / jump switch is opened.
1 is also turned on, and the vacuum valve SV2 has relay contacts X13 and X32 and the normally open contact S that are all closed.
Since it is held in the open state via 21, the energized vacuum timer TM1 times out and its contact TM1
Even if 1 is closed and relay X2 is excited, vacuum valve SV
2 continues to be in the open state as long as the hold / jump switch S2 is pressed. That is, the vacuum timer TM
The operation of 1 is invalidated, and the deaeration process is held without being controlled by the vacuum timer TM1.

On the other hand, when the hold / jump switch S2 is pressed and immediately released before the vacuum timer TM1 times out, the contact S2 is pressed by pressing the switch S2.
Relay X2 is excited via 2 and its normally open contact X23
Is closed and relay X2 holds itself, so switch S
When the pressure of 2 is released, not only the contact S21 but also the normally closed contact X24 of the relay X2 is opened, the vacuum valve SV2 is turned off, and the deaeration process is forcibly ended. In addition, the release of the switch S2 causes a shift to the sealing step.
That is, the relay X3 is excited through the closed contacts X23 and S23 to close the contact X31, and the seal valve SV is closed.
3, the seal timer TM2, the relay X4 and the seal heater H1 are energized.

Next, since the vacuum pump VP is filled with oil, the magnet MS may not be activated even when the switch MS1 of the magnet switch MS is turned on due to an increase in the viscosity of the oil when the temperature is low. In this case, it is preferable to attach a case heater H2 to the case (not shown) of the vacuum pump VP and energize the case heater to heat the oil in the vacuum pump VP. That is, if the vacuum pump VP is not started in the deaeration process, the well-known protector OL for preventing overcurrent works to turn off,
As described above in the sealing process, the seal timer TM2
When the time is up, the cooling timer TM3 is energized through the contact TM22, and the contact TM32 is closed when the timer is up, thereby turning on the case heater H2.

The vacuum pump VP is restarted by opening the lid and closing it again at the discretion of the user. At that time, if the oil temperature is sufficiently warm, the vacuum pump can be restarted. Conversely, if the oil temperature has not risen, the case heater is energized again and the vacuum pump V
Warm P.

The present invention is not limited to the above-mentioned embodiment, and various modifications can be made. For example, the control circuit according to the modified embodiment shown in FIG. 4 has a gas filling step inserted after the degassing step, and control by a hold / jump switch can be performed in each step of degassing and gas filling. It is configured to be able to. The basic configuration of the control circuit is almost the same as that shown in FIG. 1 except for the details, or it is considered that those skilled in the art can easily judge it from the description of what is shown in FIG. However, the operation will be described in detail below.

First, in the normal operation (FIG. 4), the earth leakage breaker ELB is on, the bag-shaped member to be heat-sealed is put in a vacuum chamber (not shown), and the lid (not shown) is closed. Then, the open / close switch S1 is turned on,
Power relay (magnet switch) MS is turned on,
The contact MS1 is closed and the vacuum pump VP is activated.
At the same time, the relay X1 is excited, its normally-closed contact X11 opens, and the atmosphere release valve SV1 closes.
The vacuum valve SV2 is opened through the normally closed contact X41 that is closed, and vacuuming is performed (deaeration process). Further, the vacuum timer TM1 is turned on via the normally closed contact X41.

When the set time of the vacuum timer TM1 set to perform sufficient degassing has timed up, the contact TM11 is closed, the relay contact X61 is closed, and the gas changeover switch SW is in the ON state shown in the figure. Of the gas valve G through the normally closed contact of the
When V is opened, the gas timer TM4 is energized to start a gas filling process in a vacuum chamber (not shown), and further in a bag-shaped member, as is well known. Also, the closed timer contact T
Relay X4 is excited via M11 and its normally closed contact X
41 is opened and the vacuum valve SV2 is closed. at the same time,
Closed timer contact TM11 and normally closed contact X6 of relay X6
Relay X5 is also excited via 1. When the gas changeover switch SW is in the off state, the illustrated normally closed contact opens and the normally open contact closes. Therefore, the gas valve GV and the gas timer TM4 do not turn on, and the seal timer TM2 and the relays X2 and X3 turn on. Then, the gas filling process is jumped to the next sealing process.

When the gas timer TM4 times out in the ON state of the gas changeover switch SW, its contact T
Since M41 is closed and the relay X2 is excited, its normally-closed contact X21 is opened, the gas valve GV is closed, the energization of the gas timer TM4 is stopped, and the gas charging process is completed.
Further, the contact TM41 of the gas timer is opened, but the normally open contact X22 is closed, and the relay X2 is held in the excited state. When the contact X22 of the relay X2 is closed, the relay X7 is excited via the normally closed contact X65 of the relay X6 to open the seal valve SV3, and at the same time, the seal timer T
While energizing M2, the relay X3 is excited through the normally closed contact TM21, and the contact X31 is closed, so that the seal heater H1 on the secondary side of the transformer TR is closed.
Is energized, and the bag-shaped member is heat-sealed by a normal procedure (sealing step). Also, relay X7 normally open contact X
72 also closes.

When the seal timer TM2 expires, its normally closed contact TM21 is opened, the relay X3 is demagnetized, the normally open contact X31 is opened, and the seal heater H1 is turned off (end of the sealing process). However, since the normally open contact X72 is closed, the seal valve SV3 continues to be open. Further, the cooling timer T is closed by closing the normally open contact TM22.
M3 turns on. When the set time of the cooling timer TM3 elapses, the normally closed contact TM31 opens, the magnet switch MS and the relay X1 turn off, and the vacuum pump VP.
Is stopped and the atmosphere opening valve SV1 is opened.

When the lid is opened in anticipation of the time when the inside of the vacuum chamber has returned to atmospheric pressure by opening the atmosphere release valve SV1, the opening / closing switch S1 is turned off and the relays X2, X are provided.
4, X5, X7, seal timer TM2, cooling timer TM
The third grade is turned off, and it returns to the initial standby state.

Next, with respect to the modified embodiment described above, a control method by using the hold / jump switch S2 'will be described. In this modified embodiment, the hold / jump switch S2 ′ and the relay X are arranged in parallel with the contact MS1 of the vacuum pump VP and the magnet switch.
6 series bodies are connected and the various contacts of the relay X6 are opened and closed as described below to achieve the intended purpose. That is, in FIG. 4, the lid (not shown) is closed, the open / close switch S1 is turned on, the magnet switch MS and the power relay X1 are turned on or excited, the vacuum timer TM1 is energized via the normally closed contact X41, and the vacuum pump VP
When the hold / jump switch S2 ′ is pressed in the deaeration process of vacuuming in which the vacuum valve SV2 ′ is opened, the relay X6 is excited and the normally open contact X62 is closed, while the normally closed contact is closed. X61 opens.

Therefore, the hold / jump switch S
Vacuum timer TM as long as 2'is left pressed
Even when the timer contact TM11 is turned on and the relay X4 is excited to open its normally closed contact X41, the relay X5 is not excited and its normally closed contact X51 is closed, so The valve SV2 is held in the open state via the normally open contact X62 and the normally closed contact X51 which are closed, and the deaeration process is held without being controlled by the vacuum timer TM1.

On the other hand, if the hold / jump switch S2 'is pressed and released immediately before the vacuum timer TM1 times out, the relay X6 is excited and the normally open contact X63 is closed by the pressing of the switch S2. X4
Is excited and the normally open contact X42 is closed to keep the relay X4 in an excited state. Therefore, when the switch S2 'is released and the normally open contact X62 is opened, the normally closed contact X4 of the relay X4 is also open. , Vacuum valve SV2, timer TM1
It is turned off immediately regardless of. Then, the gas valve GV, through various closed contacts X42, X61, the normally closed contact of the gas changeover switch SW in the ON state, X21, etc.
The gas timer TM4 or the like is energized to start the gas charging process.
Of course, if the gas changeover switch SW is in the off state, the gas charging process is jumped, that is, jumped over, and the above-described sealing process is performed.

Next, when the vacuum packaging machine is in the gas filling step (the gas valve GV and the gas timer TM4 are in the energized state), the hold / jump switch S2 'is provided.
If the switch S2 'is held in the pressed state when is pressed, even if the normally closed contact X21 is opened by the gas timer TM4 being timed up and the contact TM41 being closed and the relay X2 being excited. , The normally open contacts X66 and X71 of the relay X6 are closed, the gas timer T
The gas valve GV is kept open regardless of M4,
The gas charging process is held.

If the hold / jump switch S2 'is pressed and released immediately before the gas timer TM4 times out, the normally open contact X64 is closed and the relay X2 is excited by the pressing of the switch S2'. Open contact X
Since 22 is closed, when the switch S2 'is released and the normally closed contact X65 is closed, the relay X7 and the seal timer TM2 are energized, and the relay X3 is excited through the normally closed contact TM21 of the seal timer. Normally closed contact X71
Is opened (the normally closed contact X21 is closed by the excitation of the relay X2), the gas charging process is immediately interrupted, and the sealing process is started.

[0035]

As described above, according to the present invention, since a desired operation can be performed with one hold / jump switch, the possibility of erroneous operation is greatly reduced, the reliability is improved, and the vacuum is improved. The packaging machine can be made compact and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an operation control device for a vacuum packaging machine according to an embodiment of the present invention.

FIG. 2 is an operation timing chart of various devices at the time of timer control by the operation control device of FIG.

FIG. 3 is an operation timing chart of various devices when the hold / jump switch is controlled by the operation control device of FIG.

FIG. 4 is a circuit diagram of an operation control device for a vacuum packaging machine according to a modified embodiment of the present invention.

[Explanation of symbols]

VP ... Vacuum pump, S1 ... Open / close switch, S2, S2 '
... Hold / jump switch, H1 ... Seal heater,
SV1 ... Atmosphere release valve, SV2 ... Vacuum valve, SV3
... Seal valve, X1 to X6 ... Relay, TM1 ... Vacuum timer, TM2 ... Seal timer, TM3 ... Cooling timer.

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-5-178324 (JP, A) JP-A-5-170225 (JP, A) JP-A-5-170226 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B65B 31/00-31/10

Claims (4)

(57) [Claims] 1. An openable / closable lid body that cooperates with a main body to define a vacuum chamber, the lid body is closed to start a deaeration step controlled by a vacuum timer, and the time of the vacuum timer is set. One hold / jump switch is provided to control the operation of the vacuum packaging machine that starts the sealing process controlled by the sealing timer at the time of up, and the hold / jump switch turned on during the degassing process is prepared .
Switch was turned off before the vacuum timer timed out.
In this case, even if the vacuum timer has not timed up, the degassing step is interrupted, the process proceeds to the sealing step, and the hold jump switch turned on during the degassing step.
Switch is turned off by the time the vacuum timer times out.
If the vacuum timer expires,
Release the hold / jump switch until it is turned off.
A method for controlling the operation of a vacuum packaging machine that maintains the air process . 2. An openable / closable lid body that cooperates with a main body to define a vacuum chamber, the lid body is closed, and a deaeration process controlled by a vacuum timer is started. A hold / jump switch is provided to control the operation of the vacuum packaging machine that starts the gas charging process controlled by the gas timer when the gas timer is up and starts the sealing process controlled by the seal timer when the gas timer is up. , The gas turned on during the degassing step or the gas charging step
The hold / jump switch is the vacuum timer or the
If it is turned off before the gas timer times out,
The vacuum timer or the gas timer does not expire
Even if the degassing step or the gas charging step is interrupted, the process proceeds to the next step, and the deaeration step or the gas charging step is turned on.
The hold / jump switch is the vacuum timer or the
If it is not turned off by the time of the gas timer
The vacuum timer or the gas timer is up
Even until the hold jump switch is turned off
A method for controlling the operation of a vacuum packaging machine, which continues the degassing step or the gas charging step . 3. A vacuum chamber is provided with an openable / closable lid body that cooperates with a main body to define a vacuum chamber, and the lid body is closed to start a deaeration process controlled by a vacuum timer. A device for controlling the operation of a vacuum packaging machine, which starts a sealing process controlled by a sealing timer at the time of up, including one holding unit electrically connected to the vacuum timer.
A jump switch and the hold jumps turned on during the degassing process .
Switch was turned off before the vacuum timer timed out.
In this case, means for interrupting the deaeration process and shifting to the sealing process even if the vacuum timer has not timed out, and the hold jump switch turned on during the deaeration process.
Switch is turned off by the time the vacuum timer times out.
If the vacuum timer times out,
Degas process until hold / jump switch is turned off
An operation control device for a vacuum packaging machine, comprising: a sustaining means. 4. An openable / closable lid body that cooperates with a main body to define a vacuum chamber, the lid body is closed to start a deaeration step controlled by a vacuum timer, and the time of the vacuum timer is set. A device for controlling the operation of a vacuum packaging machine, which starts a gas charging process controlled by a gas timer at the time of up, and starts a sealing process controlled by a seal timer at the time of the time of the gas timer, comprising: One hold / jump switch electrically related to the gas timer, and the hold / jump switch turned on during the degassing step or the gas charging step.
The hold / jump switch is the vacuum timer or the
When the gas timer is turned off before the time is up, the above true
A means for interrupting the degassing step or the gas charging step to shift to the next step even if the empty timer or the gas timer does not time up , and turning on during the degassing step or the gas charging step. The said
The hold / jump switch is the vacuum timer or the
If it is not turned off by the time of the gas timer
The vacuum timer or the gas timer has timed out
Also until the hold jump switch is turned off
An operation control device for a vacuum packaging machine, comprising: a deaeration process or a means for continuing the gas charging process .