CN111806757A - Automatic control system and double-aluminum flat plate type sealing machine - Google Patents
Automatic control system and double-aluminum flat plate type sealing machine Download PDFInfo
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- CN111806757A CN111806757A CN202010664111.8A CN202010664111A CN111806757A CN 111806757 A CN111806757 A CN 111806757A CN 202010664111 A CN202010664111 A CN 202010664111A CN 111806757 A CN111806757 A CN 111806757A
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- circuit
- driving
- timing
- peristaltic pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention provides an automatic control system and a double-aluminum flat plate type sealing machine, wherein the double-aluminum flat plate type sealing machine comprises a sealing cover and an inert gas filling device, and inert gas is filled in a filled object through the sealing cover and the inert gas filling device. Further, oxygen does not exist in the sealed product, and the product is protected from being oxidized or degraded. And this kind of control system realizes based on analog circuit, compares in carrying out digital control's sealing machine more stable based on the singlechip to this control system cost is lower, even appear damaging convenient the change, is applicable to large-scale production line.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an automatic control system and a double-aluminum flat plate type sealing machine.
Background
The vacuumizing sealing is to completely pump out and seal the air in the packaging container to maintain the packaging container in a high decompression state, and the rarity of the air is equivalent to a low oxygen effect, so that microorganisms do not have survival conditions, and the deterioration of articles in the container is avoided.
The double-aluminum flat plate type sealing machine is suitable for packaging products and medicines such as sugar-coated tablets, plain tablets, capsules and the like with various specifications and sizes in a composite blister packaging machine taking a PVC film and a PTP aluminum foil as packaging materials.
In the process of blanking and packaging, a single chip microcomputer is adopted to intelligently control a peristaltic pump, and the blanking amount depends on the control time output by the single chip microcomputer. Generally, since the amount and time of blanking are not changed due to the specific mold, a stable control system is required so that the sealing machine does not cause problems in blanking.
Disclosure of Invention
The invention provides an automatic control system and a double-aluminum flat plate type sealing machine, wherein the control system is realized based on an analog circuit, is more stable compared with a sealing machine which is digitally controlled based on a single chip microcomputer, has lower cost, is convenient to replace even if damaged, and is suitable for large-scale production lines.
An automatic control system comprising:
the 555 timing output circuit comprises a 555 timer and is used for outputting a high-level signal of second preset time at intervals of first preset time;
the first driving circuit is connected with the output end of the 555 timing output circuit and is controlled by the high-level signal to output a first driving signal;
and the peristaltic pump connecting circuit is respectively connected with the first driving circuit and the peristaltic pump and receives the first driving signal to form a power supply loop for the peristaltic pump.
The control circuit comprises a key switch, a first relay coil, a first relay normally closed switch and a second relay normally closed switch;
the key switch and the first relay coil are connected in series and grounded, and the first relay coil is controlled by electrifying the key switch;
the first relay normally-closed switch is positioned between the 555 timer and the power supply and used for controlling the power supply to supply power to the 555 timer;
and the normally closed state of the second relay is connected with the peristaltic pump in series and is grounded, and the second relay is used for controlling the peristaltic pump to work.
Further, the automatic detection circuit is used for detecting whether the die is placed at the corresponding area;
when the mould is not placed at the corresponding position, the automatic detection circuit controls the circuit of the peristaltic pump to be broken.
Further, the automatic detection circuit comprises a detection circuit, and when the mold is placed in a corresponding area, a high-level detection voltage is output;
a reference voltage supply circuit for supplying a reference voltage;
the comparison circuit is respectively connected with the detection circuit and the reference voltage providing circuit, and when the detection voltage is greater than the reference voltage, the comparison circuit outputs a high-level signal;
and the second driving circuit is connected with the peristaltic pump in series and grounded and receives the high-level signal to control the conduction of a loop where the peristaltic pump is located.
Further, the detection circuit comprises a photoelectric sensor, and the photoelectric sensor is connected with the comparison circuit.
Further, the 555 timing output circuit comprises a 555 timer, a first timing resistor, a second timing resistor, a first timing capacitor and a second timing capacitor;
Further, the first driving circuit comprises a first driving resistor, a second driving resistor and a first driving triode;
and a pin 3 of the 555 timer is respectively connected with the first driving resistor and the second driving resistor in series and grounded, and nodes of the first driving resistor and the second driving resistor are connected with a base level of the first driving triode.
Furthermore, the peristaltic pump connecting circuit comprises a voltage dividing resistor, and the voltage dividing resistor is connected with the power supply, the peristaltic pump and the first driving triode in series and is grounded;
the divider resistor is connected with the collector of the first drive triode, and the emitter of the first drive triode is connected with the ground.
The double-aluminum flat plate type sealing machine comprises the automatic control system, wherein the automatic control system is arranged in the sealing machine and is used for controlling a peristaltic pump of the sealing machine to work.
Further, the sealing machine comprises a sealing cover and an inert gas filling device, and the inert gas filling device is used for filling inert gas into the filled object through the sealing cover and the inert gas filling device.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an automatic control system.
Reference numerals:
10. 555 timing output circuit; 20. a first drive circuit; 30. the peristaltic pump is connected with the circuit; 40. a control circuit; 50. a reference voltage supply circuit; 60. a detection circuit; 70. a comparison circuit; 80. a second drive circuit.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides an automatic control system, which is shown in fig. 1 as a schematic structural diagram, and includes a 555 timing output circuit 10, including a 555 timer, for outputting a high level signal of a second preset time at intervals of a first preset time. The 555 timing output circuit 10 plays a timing role, for example, 10 milliliters of product needs to be injected into the mold, the flow rate of the peristaltic pump is 1 second/milliliter, then the peristaltic pump works for 10 seconds and can complete the injection of 10 milliliters, the second preset time for the 555 timing output circuit 10 to output a high level signal is 10 seconds, after the injection is completed, the time for replacing the current mold with the next mold is 3 seconds, and the first preset time at intervals is more than 3 seconds, so that the peristaltic pump is controlled to inject the product into the mold.
The first driving circuit 20 is connected to the output end of the 555 timing output circuit 10, and is controlled by the high level signal to output a first driving signal. The first driving circuit 20 achieves the control effect, and can convert the high level signal with a lower voltage value into the first driving signal with a higher voltage value. The function of switch control is played.
And the peristaltic pump connecting circuit 30 is respectively connected with the first driving circuit 20 and the peristaltic pump, and receives the first driving signal to form a power supply loop for the peristaltic pump. The peristaltic pump is controlled to work by the peristaltic pump connecting circuit 30.
In one embodiment, a control circuit 40 is further included, wherein the control circuit 40 includes a key switch K4, a first relay coil K41, a first relay normally closed switch K42, and a second relay normally closed switch K43. When the first relay coil K41 is electrified, the first relay normally-closed switch K42 and the second relay normally-closed switch K43 are disconnected, and a circuit where the first relay normally-closed switch K42 and the second relay normally-closed switch K43 are located is broken. The key switch and the first relay coil K41 are arranged in series and grounded, and the first relay coil K41 is controlled by the key switch K4 to be electrified. The first relay normally-closed switch K42 is positioned between the 555 timer and the power supply and used for controlling the power supply to supply power to the 555 timer. And the second relay normally-closed switch K42 is connected in series with the peristaltic pump M and is grounded, and is used for controlling the peristaltic pump M to work. The first relay coil K41 is connected in series to a resistor R43.
Under a working condition, for example, after a product stored in a storage box connected with the peristaltic pump M is used up, the peristaltic pump M cannot inject the product into a mold during working, a worker finds that the product can timely trigger the key switch K4, at the moment, the first relay coil is powered on, the circuits where the K41, the 555 timer and the peristaltic pump M are located are all disconnected, and the control circuit 40 does not work normally. After putting into new product in the storage case, the staff triggers key switch once more, and first relay coil K4 resumes to go up the electricity, and the 555 timer is supplied power once more, carries out work, and the second relay normally closed switch K43 of peristaltic pump department resumes the closure state.
In one embodiment, an automatic detection circuit 60 is further included for detecting whether a mold is placed at the corresponding region. When the mold is not placed at the corresponding position, the automatic detection circuit 60 controls the circuit in which the peristaltic pump is placed to be broken. In the actual working state, the sealing machine has a worktable, wherein the peristaltic pump, the automatic detection circuit 60 and the like are fixed on the upper part of the worktable through a supporting part, the mould is positioned on the worktable when being injected with the product and is lower than the supporting part in height, and the automatic detection circuit 60 can detect whether the mould exists in the lower area of the supporting part or not so as to prevent the risk of product waste caused by the injection of the product when the mould does not exist in the lower part of the supporting part.
In one embodiment, the automatic detection circuit 60 includes a detection circuit 60 outputting a high level of detection voltage after the mold is placed in the corresponding region, and a reference voltage supply circuit 50 for supplying a reference voltage. The comparator circuit 70 is connected to the detection circuit 60 and the reference voltage supply circuit 50, respectively, and when the detection voltage is greater than the reference voltage, the comparator circuit 70 outputs a high level signal. And the second driving circuit 80 is connected in series with the peristaltic pump in a grounded manner, and receives the high-level signal to control the conduction of a loop where the peristaltic pump is located.
In one embodiment, the 555 timing output circuit 10 comprises a 555 timer, a first timing resistor R11, a second timing resistor R12, a first timing capacitor C11 and a second timing capacitor C12; pin 4 and pin 8 of 555 timer are connected with the power respectively, first timing resistance R11, second timing resistance R12 and first timing electric capacity C11 and power series ground set up, first timing resistance R11 and second timing resistance R12's node with 555 timer's pin 7 is connected, second timing resistance R12 with first timing electric capacity C11's node is connected with 555 timer's pin 2 and pin 6, and pin 1 is connected with ground, and pin 5 and second timing electric capacity C12 series ground set up. The length of the first preset time is adjusted by adjusting the capacitive reactance of the first timing capacitor C11 and the second timing capacitor C12.
In one embodiment, the first driving circuit 20 includes a first driving resistor R21, a second driving resistor R22, and a first driving transistor Q21; the pin 3 of the 555 timer is respectively connected with the first driving resistor R21 and the second driving resistor R22 in series and grounded, and the node of the first driving resistor R21 and the second driving resistor R22 is connected with the base level of the first driving triode Q21.
In one embodiment, the peristaltic pump connection circuit 30 includes a voltage divider resistor R31, the voltage divider resistor R31 being arranged in series with the power supply, the peristaltic pump M, and the first drive transistor Q21 to ground; the voltage divider resistor R31 is connected to the collector of the first driving transistor Q21, and the emitter of the first driving transistor Q21 is connected to ground. The voltage can be divided through the divided voltage, and the purpose and the effect of protecting the peristaltic pump M are achieved.
In one embodiment, the reference voltage providing circuit 50 includes a first reference resistor R51, a second reference resistor R52 and a third reference resistor R53 connected in series to ground, the second reference resistor R52 and the third reference resistor R53 are connected in series to ground, and a node between the first reference resistor R51 and the second reference resistor R52 is coupled to a forward input terminal of the voltage comparator U7. The purpose of outputting the reference voltage to the inverting input end of the voltage comparator U7 is achieved by dividing the voltage through the first reference resistor R51, the second reference resistor R52 and the third reference resistor R53.
In one embodiment, the detection circuit 60 includes a photosensor S that is coupled to the comparison circuit 70U 7. The photo sensor S is connected to an inverting input terminal of the voltage comparator U7, and outputs voltages of different levels by sensing a distance. Wherein the comparison circuit 70 includes a voltage comparator U7. The second driving circuit 80 includes a third driving resistor R81, a fourth driving resistor R82, and a second driving transistor Q81, an output terminal of the voltage comparator U7 is connected in series with the third driving resistor R81 and the fourth driving resistor R82, respectively, and a node of the third driving resistor R81 and the fourth driving resistor R82 is connected to a base of the second driving transistor Q81.
In the actual work process, photoelectric sensor sets up on the support, when the mould was poured into the product into, photoelectric sensor is located the top of mould, photoelectric sensor output higher level's the magnitude of voltage to voltage comparator's forward input this moment, the detection voltage of its input is greater than reference voltage this moment, voltage comparator output high level signal second drive circuit 80, the third drive resistance and the best partial pressure of fourth drive resistance of second drive circuit 80 provide voltage to the base of second drive triode, the second drive triode switches on, make the peristaltic pump can not lead to breaking because the second drive triode does not switch on, and then reach the effect of controlling the peristaltic pump. By the mode, the peristaltic pump can input products only when the mold is located below the bracket fixed by the peristaltic pump, and waste is avoided.
The double-aluminum flat plate type sealing machine comprises the automatic control system, wherein the automatic control system is arranged in the sealing machine and is used for controlling a peristaltic pump of the sealing machine to work.
In one embodiment, the sealing machine comprises a sealing cover and an inert gas filling device, and the inert gas filling device is used for filling inert gas into the filled object through the sealing cover and the inert gas filling device. Further, oxygen does not exist in the sealed product, and the product is protected from being oxidized or degraded.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An automatic control system, comprising:
the 555 timing output circuit (10) comprises a 555 timer and is used for outputting a high-level signal of second preset time at intervals of first preset time;
the first driving circuit (20) is connected with the output end of the 555 timing output circuit (10) and is controlled by the high-level signal to output a first driving signal;
and the peristaltic pump connecting circuit (30) is respectively connected with the first driving circuit (20) and the peristaltic pump and receives the first driving signal to form a power supply loop for the peristaltic pump.
2. The automatic control system of claim 1,
the relay protection circuit further comprises a control circuit (40), wherein the control circuit (40) comprises a key switch, a first relay coil, a first relay normally closed switch and a second relay normally closed switch;
the key switch and the first relay coil are connected in series and grounded, and the first relay coil is controlled by electrifying the key switch;
the first relay normally-closed switch is positioned between the 555 timer and the power supply and used for controlling the power supply to supply power to the 555 timer;
and the normally closed state of the second relay is connected with the peristaltic pump in series and is grounded, and the second relay is used for controlling the peristaltic pump to work.
3. The automatic control system of claim 1,
the automatic detection circuit (60) is used for detecting whether the die is placed at the corresponding area;
when the mould is not placed at the corresponding position, the automatic detection circuit (60) controls the circuit of the peristaltic pump to be broken.
4. The automatic control system of claim 3,
the automatic detection circuit (60) comprises a detection circuit (60), and when the die is placed in a corresponding area, a high-level detection voltage is output;
a reference voltage supply circuit (50) for supplying a reference voltage;
a comparison circuit (70) which is connected with the detection circuit (60) and the reference voltage supply circuit (50) respectively, and when the detection voltage is larger than the reference voltage, the comparison circuit (70) outputs a high level signal;
and the second driving circuit (80) is connected with the peristaltic pump in series and grounded and receives the high-level signal to control the conduction of a loop where the peristaltic pump is located.
5. The automatic control system of claim 4,
the detection circuit (60) comprises a photosensor, which is connected to a comparison circuit (70).
6. The automatic control system of claim 1,
the 555 timing output circuit (10) comprises a 555 timer, a first timing resistor, a second timing resistor, a first timing capacitor and a second timing capacitor;
pin 4 and pin 8 of 555 timer are connected with the power respectively, first timing resistance, second timing resistance and first timing electric capacity and power series connection ground connection set up, the node of first timing resistance and second timing resistance with pin 7 of 555 timer is connected, the second timing resistance with the node of first timing electric capacity is connected with pin 2 and pin 6 of 555 timer, and pin 1 is connected with ground, and pin 5 and second electric capacity series connection ground connection set up.
7. The automatic control system of claim 6,
the first driving circuit (20) comprises a first driving resistor, a second driving resistor and a first driving triode;
and a pin 3 of the 555 timer is respectively connected with the first driving resistor and the second driving resistor in series and grounded, and nodes of the first driving resistor and the second driving resistor are connected with a base level of the first driving triode.
8. The automatic control system of claim 7,
the peristaltic pump connecting circuit (30) comprises a voltage dividing resistor, and the voltage dividing resistor is connected with the power supply, the peristaltic pump and the first driving triode in series and is grounded;
the divider resistor is connected with the collector of the first drive triode, and the emitter of the first drive triode is connected with the ground.
9. A double aluminum flat bed sealer comprising the automatic control system of any one of claims 1 to 8 disposed within the sealer for controlling the operation of a peristaltic pump of the sealer.
10. The double aluminum flat plate sealer according to claim 9,
the sealing machine comprises a sealing cover and an inert gas filling device, and the inert gas filling device is used for filling inert gas into a filled object through the sealing cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664111.8A CN111806757B (en) | 2020-07-10 | 2020-07-10 | Automatic control system and double-aluminum flat plate type sealing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010664111.8A CN111806757B (en) | 2020-07-10 | 2020-07-10 | Automatic control system and double-aluminum flat plate type sealing machine |
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| CN111806757B CN111806757B (en) | 2023-08-11 |
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