Automatic bonding and roll changing control system and method for transparent paper of packaging machine, medium and product

Abstract

The invention discloses a packaging machine transparent paper automatic bonding roll changing control system and method, a medium and a product, and the system comprises a cutting control switch which sends a roll changing signal after the cutting control switch is manually closed; the heat sealing device control circuit switch is used for controlling the heat sealing device to perform heat sealing adhesion or return when detecting a closing or opening signal to the heat sealing device control circuit switch; the cutter control circuit switch is used for controlling the cutter to cut off the old paper edge or return when detecting a switching-on or switching-off signal of the cutter control circuit switch; when a roll changing signal is detected, a controller sends a closing signal to a heat sealing device control circuit switch, sends a closing signal to a cutter control circuit switch after a first time delay, and sends an opening signal to the heat sealing device control circuit switch and an opening signal to the cutter control circuit switch after a second time delay. Automatic roll changing is achieved, the labor cost is reduced, the roll changing efficiency and accuracy are improved, and the production continuity and stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette packaging machinery and equipment, and in particular to a control system, method, medium and product for automatic bonding and changing rolls of transparent paper for a packaging machine. Background Art

[0002] In the cigarette production and processing, the packaging of cigarettes directly affects the final appearance and quality of the product. High-quality packaging can ensure the integrity of cigarettes during transportation and storage, and avoid product loss due to packaging damage. Beautiful and neat packaging can enhance the user experience and strengthen the brand image. In the cigarette packaging process, there are strict requirements for the installation position of the transparent paper of the packaging machine. If there is a deviation in the cutting position, bonding position or installation position of the color film transparent paper after changing the roll, the final product quality will be affected. Summary of the invention

[0003] The present invention provides a control system, method, medium and product for automatic bonding and roll changing of transparent paper in a packaging machine, so as to solve the problems of high labor cost, low roll changing efficiency and poor accuracy in bonding and roll changing of transparent paper in a packaging machine, and the resulting poor production continuity and low stability.

[0004] According to one aspect of an embodiment of the present invention, a control system for automatic bonding and changing rolls of transparent paper for a packaging machine is provided, comprising: a cutting control switch, a cutter control circuit switch, a cutter, a heat sealer control circuit switch, a heat sealer, and a controller; the controller is electrically connected to the cutting control switch, the controller is electrically connected to the cutter control circuit switch, the cutter control circuit switch is electrically connected to the cutter, and the cutter is arranged at a preset old paper edge cutting position of the packaging machine; the controller is electrically connected to the heat sealer control circuit switch, the heat sealer control circuit switch is electrically connected to the heat sealer, and the heat sealer is arranged at a preset new paper and old paper heat-sealing bonding position of the packaging machine;

[0005] The cutting control switch is used to generate a roll changing control signal and send it to the controller after the cutting control switch is manually closed;

[0006] The heat sealer control circuit switch is used to control the heat sealer to perform heat-seal bonding operation on the new paper and the old paper at a preset bonding position when a closing control signal of the heat sealer control circuit switch is detected; and to return the heat sealer to its original position when a disconnection control signal of the heat sealer control circuit switch is detected;

[0007] The cutter control circuit switch is used to control the cutter to cut off the old paper edge at a preset old paper edge cutting position when a closed control signal of the cutter control circuit switch is detected; and to return the cutter to its original position when a disconnection control signal of the cutter control circuit switch is detected;

[0008] The controller is used to generate a closing control signal for a heat sealer control circuit switch and send it to the heat sealer control circuit switch when a roll changing control signal is detected; after generating the closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generate a closing control signal for a cutter control circuit switch and send it to the cutter control circuit switch; after generating the closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generate a disconnection control signal for the heat sealer control circuit switch and send it to the heat sealer control circuit switch, and generate a disconnection control signal for the cutter control circuit switch and send it to the cutter control circuit switch.

[0009] According to another aspect of an embodiment of the present invention, a method for controlling automatic bonding and roll changing of transparent paper for a packaging machine is provided, which is executed by a controller configured in the automatic bonding and roll changing control system of transparent paper for a packaging machine according to any embodiment of the present invention, and the method comprises:

[0010] When a roll-changing control signal is detected, a closing control signal for a heat sealer control circuit switch is generated and sent to the heat sealer control circuit switch;

[0011] After generating a closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch;

[0012] After generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generating an opening control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, and generating an opening control signal for the cutter control circuit switch and sending it to the cutter control circuit switch;

[0013] When a new paper tray installation control signal is detected, a closing control signal for a paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch;

[0014] When the control signal for tensioning the new paper tray is detected, after a third preset delay, a disconnect control signal for the paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch.

[0015] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the automatic bonding and roll-changing control method for a packaging machine transparent paper as described in any embodiment of the present invention when executed.

[0016] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising computer instructions, wherein when the computer instructions are executed by a processor, the steps of the method described in any embodiment of the present invention are implemented.

[0017] The control system for automatic bonding and changing rolls of transparent paper for a packaging machine according to an embodiment of the present invention comprises: a cutting control switch for sending a roll-changing signal after closing a cutting control switch; a heat sealer control circuit switch for controlling the heat sealer to heat-seal or return when a closing or opening signal of a heat sealer control circuit switch is detected; a cutter control circuit switch for controlling the cutter to cut off an old paper edge or return when a closing or opening signal of a cutter control circuit switch is detected; a controller for sending a closing signal to the heat sealer control circuit switch, a closing signal to the cutter control circuit switch after a first delay, and a disconnection signal to the heat sealer control circuit switch and a disconnection signal to the cutter control circuit switch after a second delay when a roll-changing signal is detected. The controller can realize the automation of paper tray in-place detection, tensioning a new paper tray, heat-sealing bonding and cutting off an old paper edge by operating the corresponding switches, thereby reducing labor costs, improving roll-changing efficiency and accuracy, and improving production efficiency, continuity and stability.

[0018] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a control system for automatic bonding and roll changing of transparent paper for a packaging machine provided according to the first embodiment of the present invention;

[0021] Figure 2 This is a flow chart of a method for controlling automatic bonding and roll changing of transparent paper in a packaging machine provided according to a second embodiment of the present invention;

[0022] Figure 3 The present invention is an electrical schematic diagram of a control system for automatic bonding and changing rolls of transparent paper in a packaging machine to which the present invention is applicable. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] Embodiment 1

[0026] In the related art, when the transparent paper is used up, the transparent paper needs to be positioned and cut and adjusted. The roll changing device of some packaging machines will affect the positioning of the transparent paper color film, causing the transparent paper cutting position to deviate, resulting in a large number of defective cigarette packs, and the transparent paper cutting position changes too much, and the operator needs to re-thread the paper for positioning, which reduces the equipment operation efficiency. After the transparent paper is installed, the operator can only manually cut the transparent paper and then stick it with tape to ensure that the transparent paper color film is in the normal position to ensure that the cutting position will not deviate, which increases the labor cost of changing the transparent paper roll, reduces the efficiency and accuracy of the roll change, and reduces the efficiency, continuity and stability of production.

[0027] Figure 1 This is a schematic structural diagram of a control system for automatic gluing and changing rolls of transparent paper for a packaging machine provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation where the transparent paper of the packaging machine is automatically gluing and changing rolls when the transparent paper is used up.

[0028] Correspondingly, such as Figure 1 As shown, the system includes:

[0029] A cutting control switch 110, a cutter control circuit switch 130, a cutter 140, a heat sealer control circuit switch 120, a heat sealer 150 and a controller 160; the controller 160 is electrically connected to the cutting control switch 110, the controller 160 is electrically connected to the cutter control circuit switch 130, the cutter control circuit switch 130 is electrically connected to the cutter 140, and the cutter 140 is arranged at a preset old paper edge cutting position of the packaging machine; the controller 160 is electrically connected to the heat sealer control circuit switch 120, the heat sealer control circuit switch 120 is electrically connected to the heat sealer 150, and the heat sealer 150 is arranged at a preset new paper and old paper heat sealing bonding position of the packaging machine;

[0030] The cutting control switch 110 is used to generate a roll change control signal and send it to the controller 160 after the cutting control switch 110 is manually closed;

[0031] The heat sealer control circuit switch 120 is used to control the heat sealer 150 to perform heat-seal bonding operation on the new paper and the old paper at a preset bonding position when a closed control signal of the heat sealer control circuit switch 120 is detected; and to return the heat sealer 150 to its original position when a disconnection control signal of the heat sealer control circuit switch 120 is detected;

[0032] The cutter control circuit switch 130 is used to control the cutter 140 to cut off the old paper edge at the preset old paper edge cutting position when a closed control signal of the cutter control circuit switch 130 is detected; and to return the cutter 140 to its original position when a disconnection control signal of the cutter control circuit switch 130 is detected;

[0033] The controller 160 is used for generating a closing control signal for the heat sealer control circuit switch 120 and sending it to the heat sealer control circuit switch 120 when a roll changing control signal is detected; after generating the closing control signal for the heat sealer control circuit switch 120 and sending it to the heat sealer control circuit switch 120, after a first preset delay, generating a closing control signal for the cutter control circuit switch 130 and sending it to the cutter control circuit switch 130; after generating the closing control signal for the cutter control circuit switch 130 and sending it to the cutter control circuit switch 130, after a second preset delay, generating a disconnection control signal for the heat sealer control circuit switch 120 and sending it to the heat sealer control circuit switch 120, and generating a disconnection control signal for the cutter control circuit switch 130 and sending it to the cutter control circuit switch 130.

[0034] In the embodiment of the present invention, the cutting control switch can be specifically understood as: a switch that starts the roll changing process, which is manually triggered by an operator, and after being triggered, a roll changing control signal is generated and sent to the controller. The cutting control switch can be in the form of a mechanical switch, or it can be configured in the controller system and implemented in the form of a virtual switch (such as a virtual button in a touch screen).

[0035] The cutter control circuit switch can be specifically understood as being able to control the working state of the cutter according to the received control signal (such as the instruction from the controller). When the cutting control switch 110 is triggered, the controller 160 will send a closing control signal to the cutter control circuit switch 130 to close it, thereby powering the cutter 140 and controlling the cutter 140 to cut the old paper edge at the preset old paper edge cutting position; when the controller 160 detects the disconnection control signal to the cutter control circuit switch 130, the cutter control circuit switch 130 is restored to the untriggered state, and the cutter 140 returns to its position. The cutting control switch 110 can be manually adjusted to the untriggered state after the cutter returns to its position after the roll change is completed. The cutter can be specifically understood as being set at the preset old paper edge cutting position of the packaging machine, and can be a rotating blade or a cutting knife. When the cutter 140 is powered on, it will perform a cutting action to cut off the old paper edge. When the cutter 140 is powered off, the cutter 140 returns to its position, that is, returns to the initial state or the standby state.

[0036] The heat sealer control circuit switch can be specifically understood as: a switch that starts the heat sealing process, which is automatically triggered by the controller and can control the working state of the heat sealer according to the received control signal (such as the instruction from the controller). When the controller 160 detects the closing control signal of the heat sealer control circuit switch 120, the heat sealer 150 is controlled to perform heat sealing bonding operation on the new paper and the old paper at the preset bonding position; when the controller 160 detects the disconnection control signal of the heat sealer control circuit switch 120, the heat sealer control circuit switch 120 is restored to the untriggered state, and the heat sealer 150 returns to its original position. The heat sealer can be specifically understood as: a switch set at the preset heat sealing bonding position of the new paper and the old paper of the packaging machine, which can be an electric heating element. When the heat sealer 150 is powered on, it can bond the transparent paper of the new and old paper trays together through high temperature. When the heat sealer 150 is powered off, the heat sealer 150 returns to its original position and returns to the initial state or standby state.

[0037] The controller can be specifically understood as a device that is responsible for coordinating and controlling the operation of the entire device, can receive signals from various sensors and switches, and control each component according to preset logic or programs, such as a programmable logic controller (PLC) or industrial computer, etc. Electrical connection refers to the electrical connection between devices through wires, interfaces, connectors or interfaces.

[0038] The first preset delay can be specifically understood as: after starting the heat sealer, the preset time required to start the cutter to perform the cutting operation. Connect the transparent paper on the new paper tray with the transparent paper on the old paper tray by heat sealing and bonding to ensure that the packaging process can continue after the paper tray is replaced. Since different devices have different response times, they need to be set according to the mechanical characteristics and control system of the equipment. For example, the heat sealer requires a certain amount of time to reach the operating temperature. In order to achieve the desired effect of heat sealing the transparent paper on the new and old paper trays, the first preset delay needs to be at least greater than the sum of the time it takes for the heat sealer to heat up to the operating temperature and the time it takes for the transparent paper on the new and old paper trays to achieve the desired effect through heat sealing.

[0039] The second preset delay can be specifically understood as: after the cutter is started to perform the cutting operation, the preset time required to trigger the cutter and heat sealer to return to their original position. After the new and old paper are bonded, the excess transparent paper edges on the old paper tray are cut off to ensure that the transparent paper on the new paper tray can smoothly enter the conveying system of the packaging machine to avoid problems in the packaging process caused by interference from the old paper edges. The second preset delay needs to be at least longer than the time it takes for the cutter to complete the cutting operation to ensure cutting quality and avoid incomplete cutting or material damage due to premature return.

[0040] Specifically, when the transparent paper on the old paper tray is about to run out and needs to be replaced, the operator manually stops the packaging machine equipment, and adjusts the transparent paper on the old paper tray to the specified position of the old paper through the manual turning device, ensuring that the transparent paper positioning mark on the old paper tray (usually a specific pattern or mark printed on the transparent paper) is aligned to the specific position specified by the equipment, so that after the paper tray is replaced, the transparent paper of the new and old paper trays can be smoothly docked, and the patterns or marks of the new and old transparent paper color films can be accurately aligned. The cutting control switch 110 is manually closed and triggered, and a roll change control signal is sent to the controller 160. When the controller 160 receives the roll change control signal, it sends a closing control signal to the heat sealer control circuit switch 120. When the heat sealer control circuit switch 120 receives the closing control signal, it controls the heat sealer 150 to perform heat sealing bonding operations on the new paper and the old paper at the preset bonding position. After the controller 160 sends a closing control signal to the heat sealer control circuit switch 120, after a first preset delay, it sends a closing control signal to the cutter control circuit switch 130. When the cutter control circuit switch 130 receives the closing control signal, it controls the cutter 140 to cut off the old paper edge at the preset old paper edge cutting position.

[0041] After the controller 160 sends a closing control signal to the cutter control circuit switch 130, after a second preset delay, the controller 160 sends a disconnection control signal to the heat sealer control circuit switch 120, and sends a disconnection control signal to the cutter control circuit switch 130. When the heat sealer control circuit switch 120 receives the disconnection control signal, the heat sealer control circuit switch 120 returns to a non-triggered state and returns the heat sealer 150. When the cutter control circuit switch 130 receives the disconnection control signal, the cutter control circuit switch 130 returns to a non-triggered state and returns the cutter 140. The cutting control switch 110 can be manually adjusted to a non-triggered state after the cutter and the heat sealer return to their positions after the roll change is completed, ensuring that each component of the equipment returns to an initial state or a ready state after each operation, thereby realizing the roll change operation in the continuous production process and avoiding failures and production interruptions caused by incorrect component positions. In addition, a safety delay may be set to ensure that the roll changing operation is not triggered repeatedly within the safety delay time range after the roll changing operation is completed, and to ensure that the operator can manually adjust the cutting control switch 110 to restore to a non-triggered state.

[0042] The control system for automatic bonding and roll changing of transparent paper for a packaging machine according to an embodiment of the present invention comprises: a cutting control switch for sending a roll changing signal after closing the cutting control switch; a heat sealer control circuit switch for controlling the heat sealer to heat seal or return when detecting a closing or opening signal of the heat sealer control circuit switch; a cutter control circuit switch for controlling the cutter to cut off the old paper edge or return when detecting a closing or opening signal of the cutter control circuit switch; a controller for sending a closing signal to the heat sealer control circuit switch when detecting a roll changing signal, sending a closing signal to the cutter control circuit switch after a first delay, and sending an opening signal to the heat sealer control circuit switch and an opening signal to the cutter control circuit switch after a second delay. Only the corresponding switches need to be operated manually, and the automation of heat sealing and cutting off the old paper edge is realized through the controller, thereby reducing labor costs, improving roll changing efficiency and accuracy, and improving production efficiency, continuity and stability.

[0043] Optionally, based on the above embodiments, the cutter control circuit switch is a cutter control relay, the power supply end of the cutter control relay is electrically connected to the controller; the normally open contact of the cutter control relay is electrically connected to the power supply end of the cutter solenoid valve;

[0044] The controller is specifically configured to, after generating a closing control signal for a heat sealer control circuit switch and sending it to the heat sealer control circuit switch, send a high level signal to a cutter control relay after a first preset delay, so as to trigger the cutter control relay to energize the cutter solenoid valve after being turned on; and

[0045] After sending a high level signal to the cutter control relay, after a second preset delay, a low level signal is sent to the cutter control relay to trigger the cutter control relay to disconnect and cause the cutter solenoid valve to lose power.

[0046] Specifically, the controller provides power to the cutter control relay through an electrical connection to ensure that the relay can work normally. After the controller sends a closing control signal to the heat sealer control circuit switch, after a first preset delay, the controller sends a high-level signal to the cutter control relay to trigger the normally open contact of the cutter control relay to close, and the cutter solenoid valve is energized, thereby starting the cutter to perform a cutting operation. After the controller sends a high-level signal to the cutter control relay, after a second preset delay, the controller sends a low-level signal to the cutter control relay to trigger the normally open contact of the cutter control relay to disconnect, and the cutter solenoid valve loses power, thereby stopping the cutting operation of the cutter, causing the cutter to return to its position, and the cutter control relay is also restored to an untriggered state. The electrical isolation function is realized by the relay, ensuring the safe isolation of the control circuit (including the power supply end of the cutter control relay and the controller, etc.) and the main circuit (including the normally open contacts of the cutter control relay and the cutter solenoid valve, etc.), avoiding electrical failures. Through the precise delay control of the controller, the automatic operation of the cutter and heat sealer is realized, ensuring that each component of the equipment returns to the initial state or ready state after each operation, thereby realizing the roll changing operation in the continuous production process, avoiding failures and production interruptions caused by incorrect component position, ensuring the sequence, accuracy and stability of heat sealing and cutting operations, avoiding equipment failures caused by too fast operation, incomplete bonding of new and old paper, insufficient cutting of transparent paper and the resulting poor product quality and material damage, reducing manual intervention and equipment downtime, improving overall production efficiency, and improving adaptability to large-scale continuous production scenarios.

[0047] Optionally, based on the above embodiments, the heat sealer control circuit switch is a heat sealer control relay, the power supply end of the heat sealer control relay is electrically connected to the controller; the normally open contact of the heat sealer control relay is electrically connected to the power supply end of the heat sealer solenoid valve;

[0048] The controller is specifically configured to, when detecting a roll-changing control signal, send a high-level signal to a heat sealer control relay, so as to trigger the heat sealer control relay to energize the heat sealer solenoid valve after being turned on; and

[0049] After sending a high level signal to the cutter control relay, after a second preset delay, a low level signal is sent to the heat sealer control relay to trigger the heat sealer control relay to disconnect and then de-energize the heat sealer solenoid valve.

[0050] Specifically, the controller provides power to the heat sealer control relay through electrical connection to ensure that the relay can work normally. When the controller detects the roll change control signal, it sends a high-level signal to the heat sealer control relay to trigger the normally open contact of the heat sealer control relay to close, and the heat sealer solenoid valve is energized, thereby starting the heat sealer to perform the heat sealing and bonding operation of the new paper and the old paper. After sending a high-level signal to the cutter control relay, the controller sends a low-level signal to the heat sealer control relay after a second preset delay to trigger the normally open contact of the heat sealer control relay to disconnect, and the heat sealer solenoid valve loses power, thereby stopping the heat sealing and bonding operation of the heat sealer, returning the heat sealer to its position, and at the same time, the heat sealer control relay is also restored to an untriggered state. The electrical isolation function is realized by the relay, ensuring the safe isolation of the control circuit (including the power supply end of the heat sealer control relay and the controller, etc.) and the main circuit (including the normally open contacts of the heat sealer control relay and the heat sealer solenoid valve, etc.), avoiding electrical failures. Through the precise delay control of the controller, the automatic operation of the cutter and heat sealer is realized, ensuring that each component of the equipment returns to the initial state or ready state after each operation, thereby realizing the roll changing operation in the continuous production process, avoiding failures and production interruptions caused by incorrect component position, ensuring the sequence, accuracy and stability of heat sealing and cutting operations, avoiding equipment failures caused by too fast operation, incomplete bonding of new and old paper, insufficient cutting of transparent paper and the resulting poor product quality and material damage, reducing manual intervention and equipment downtime, improving overall production efficiency, and improving adaptability to large-scale continuous production scenarios.

[0051] Further, on the basis of the above embodiments, the system further comprises: a paper tray tensioning switch, a paper tray tensioning circuit switch, a paper tray tensioning device and a paper tray in place detection device; the controller is electrically connected to the paper tray tensioning switch, the controller is electrically connected to the paper tray tensioning circuit switch, the paper tray tensioning circuit switch is electrically connected to the paper tray tensioning device, the paper tray tensioning device is arranged around the installation position of the packaging machine paper tray, the paper tray in place detection device is arranged at a preset installation position of the packaging machine paper tray, and the controller is electrically connected to the paper tray in place detection device;

[0052] The paper tray tensioning switch is used to generate a new paper tray installation control signal and send it to the controller after the paper tray tensioning switch is manually closed;

[0053] The paper tray tensioning circuit switch is used to control the paper tray tensioning device to open to loosen the paper tray when a closing control signal of the paper tray tensioning circuit switch is detected; and to control the paper tray tensioning device to close to tension the paper tray when a disconnection control signal of the paper tray tensioning circuit switch is detected;

[0054] The paper tray in place detection device is used to generate a control signal for tensioning the new paper tray and send it to the controller after detecting that the new paper tray is installed in the preset position;

[0055] The controller is used to generate a closing control signal for the paper tray tensioning circuit switch and send it to the paper tray tensioning circuit switch when a new paper tray installation control signal is detected; and to generate a disconnecting control signal for the paper tray tensioning circuit switch and send it to the paper tray tensioning circuit switch after a third preset delay when a new paper tray tensioning control signal is detected.

[0056] In the embodiment of the present invention, the third preset delay can be specifically understood as: after detecting that a new paper tray is installed in a preset position, the preset time required to trigger the paper tray tensioning device to tension the paper tray. In order to ensure the safety of operation and the reliability of the equipment, the third preset delay should be long enough to ensure that the paper tray is installed in place and the operator has completed the installation operation, so as to avoid equipment failure caused by too fast operation, safety problems caused by the operator's failure to exit the installation operation in time, or material damage.

[0057] Specifically, when the packaging machine is running, when a new paper tray needs to be installed, the operator manually triggers the paper tray tensioning switch to close, and the paper tray tensioning switch sends a new paper tray installation control signal to the controller. After the controller receives the new paper tray installation control signal, it sends a closing control signal to the paper tray tensioning circuit switch. After receiving the closing control signal, the paper tray tensioning circuit switch controls the paper tray tensioning device to open to loosen the paper tray for the operator to install the new paper tray. After the operator installs the new paper tray in place, the paper tray in place detection device (such as a paper tray in place detection device installed at the rear end of the paper tray rack) detects that the new paper tray is installed in a preset position, and sends a tensioning new paper tray control signal to the controller. After receiving the tensioning new paper tray control signal, the controller sends a disconnection control signal to the paper tray tensioning circuit switch after a third preset delay. After receiving the disconnection control signal, the paper tray tensioning circuit switch controls the paper tray tensioning device to close to tension the paper tray. After tensioning the paper tray, the operator presets the color film transparent paper positioning mark (usually a specific pattern or mark printed on the transparent paper) to the specified position of the new paper through the manual turning device, so that when the paper tray is replaced later, the transparent paper of the new and old paper trays can be smoothly docked, and the patterns or marks of the new and old transparent paper color films can be accurately aligned. In addition, after tensioning the paper tray, the operator can manually adjust the paper tray tensioning switch to the untriggered state to ensure that each component of the equipment returns to the initial state or ready state after each new paper tray installation operation, thereby realizing the operation of updating the new paper tray during the continuous production process and avoiding failures and production interruptions caused by incorrect component positioning. In addition, a safety delay can be set to ensure that the installation of the new paper tray will not be repeatedly triggered within the safety delay time range after the installation of the new paper tray is completed, ensuring that the operator can manually adjust the paper tray tensioning switch to the untriggered state. Through the precise delay control of the controller, the automatic operation of the paper tray tensioning device is realized, which reduces manual intervention, improves production efficiency and stability, and its adaptability to large-scale continuous production scenarios, ensures the order and accuracy of the paper tray tensioning operation and the safety of the operator, and improves the packaging quality.

[0058] Optionally, based on the above embodiments, the paper tray tensioning circuit switch is a paper tray tensioning control relay, and the power supply end of the paper tray tensioning control relay is electrically connected to the controller; the normally open contact of the paper tray tensioning control relay is electrically connected to the power supply end of the paper tray tensioning solenoid valve;

[0059] The controller is specifically used to, when a new paper tray installation control signal is detected, send a high-level signal to the paper tray tensioning control relay to trigger the paper tray tensioning control relay to energize the paper tray tensioning solenoid valve after being connected; and when a new paper tray tensioning control signal is detected, after a third preset delay, send a low-level signal to the paper tray tensioning control relay to trigger the paper tray tensioning control relay to de-energize the paper tray tensioning solenoid valve after being disconnected.

[0060] Specifically, the controller provides power to the paper tray tensioning control relay through an electrical connection to ensure that the relay can work normally. When the controller detects a control signal for installing a new paper tray, it sends a high-level signal to the paper tray tensioning control relay to trigger the normally open contact of the paper tray tensioning control relay to close, and the paper tray tensioning solenoid valve is energized, so that the paper tray tensioning device opens to loosen the paper tray. After the new paper tray is installed in place, when the controller detects a control signal for tensioning the new paper tray, after a third preset delay, it sends a low-level signal to the paper tray tensioning control relay to trigger the normally open contact of the paper tray tensioning control relay to disconnect, the paper tray tensioning solenoid valve loses power, the paper tray tensioning device closes, and the paper tray is tensioned. At the same time, the paper tray tensioning control relay is also restored to an untriggered state. The electrical isolation function is realized by the relay, ensuring the safe isolation of the control circuit (including the power supply end of the paper tray tensioning control relay and the controller, etc.) and the main circuit (including the normally open contact of the paper tray tensioning control relay and the paper tray tensioning solenoid valve, etc.) to avoid electrical failures. Through the precise delay control of the controller, the automatic operation of the paper tray tensioning device is realized, which reduces manual intervention, improves production efficiency and stability, and its adaptability to large-scale continuous production scenarios, ensures the order and accuracy of the paper tray tensioning operation and the safety of the operator, and improves the packaging quality.

[0061] Optionally, based on the above embodiments, the paper tray in place detection device is a photoelectric detection device, and the paper tray in place detection device includes: a transmitting end device and a receiving end device;

[0062] At the preset installation position of the paper tray, the transmitting end device and the receiving end device are respectively arranged at the two ends of the paper tray rack, and are used to detect the installation result of the new paper tray in real time by means of photoelectric detection, and after detecting that the new paper tray is installed at the preset position, generate a control signal for tensioning the new paper tray and send it to the controller.

[0063] In the embodiment of the present invention, the photoelectric detection device can be specifically understood as: a device that uses the characteristics of light and the photoelectric effect to detect the position or state of an object, such as a photoelectric sensor. The transmitting end device is usually installed on one side of the paper tray rack, facing the installation position of the paper tray. The transmitting end device is responsible for emitting a light beam (such as infrared light or visible light, etc.) to detect whether the paper tray is in place. The receiving end device is installed on the other side of the paper tray rack, opposite to the transmitting end device, and is used to receive the light beam emitted by the transmitting end. When the paper tray is correctly installed, the light beam is blocked, and the receiving end device cannot detect the light beam, thereby confirming that the paper tray is in place. When it is detected that the new paper tray is installed in the preset position, the paper tray in place detection device generates a tensioning new paper tray control signal and sends it to the controller. After receiving the signal, the controller triggers the paper tray tensioning device to tension the paper tray. Through the photoelectric detection device, the automatic detection of paper tray installation is realized, which reduces manual intervention and equipment downtime, improves the overall production efficiency, and adaptability to the scenario of large-scale continuous production. Through real-time detection, the accuracy of paper tray installation is ensured, equipment failure caused by the paper tray not being in place is avoided, and the operation stability of the equipment and the packaging quality of the product are improved.

[0064] Optionally, on the basis of the above embodiments, the cutting control switch is a three-speed knob switch, which is arranged on the packaging machine body, and comprises: a left normally open contact and a right normally open contact, which are electrically connected to the input pins of the controller respectively, and are used to generate a left roll changing control signal or a right roll changing control signal to send to the controller after the left normally open contact or the right normally open contact is manually closed;

[0065] The cutter control circuit switch comprises a left cutter control circuit switch and a right cutter control circuit switch, one end of the left cutter control circuit switch and the right cutter control circuit switch are respectively connected to the output pin of the controller, and the other end of the left cutter control circuit switch and the right cutter control circuit switch are respectively electrically connected to the left cutter and the right cutter, the left cutter control circuit switch is used to control the left cutter to cut the old paper edge at a preset old paper edge cutting position when a closed control signal to the left cutter control circuit switch is detected; and return the left cutter to its position when a disconnection control signal to the cutter control circuit switch is detected; the right cutter control circuit switch is used to control the right cutter to cut the old paper edge at a preset old paper edge cutting position when a closed control signal to the right cutter control circuit switch is detected; and return the right cutter to its position when a disconnection control signal to the cutter control circuit switch is detected;

[0066] The cutter comprises a left cutter and a right cutter, wherein the left cutter is arranged at a preset old paper edge cutting position of the left paper tray of the packaging machine, and the right cutter is arranged at a preset old paper edge cutting position of the right paper tray of the packaging machine;

[0067] The controller is used to generate a closing control signal for a heat sealer control circuit switch and send it to the heat sealer control circuit switch when a left or right roll changing control signal is detected; after generating the closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generate a closing control signal for the left or right cutter control circuit switch and send it to the left or right cutter control circuit switch; after generating the closing control signal for the left or right cutter control circuit switch and sending it to the left or right cutter control circuit switch, after a second preset delay, generate a disconnection control signal for the left or right cutter control circuit switch and send it to the left or right cutter control circuit switch.

[0068] Specifically, the operator turns the three-speed knob switch to the left or right, closes the normally open contact on the left or right side, generates a left or right roll change control signal and sends it to the controller. The controller detects the left or right roll change control signal and sends a closed control signal to the heat sealer control circuit switch. The heat sealer control circuit switch receives the closed control signal and controls the heat sealer to perform heat sealing and bonding operations on the new paper and the old paper at the preset bonding position on the left or right side. After the controller sends the closed control signal to the heat sealer control circuit switch, after a first preset delay, it sends a closed control signal to the left or right cutter control circuit switch, the left or right cutter control circuit switch detects the closed control signal, and controls the left or right cutter to cut the old paper edge at the preset old paper edge cutting position. After the controller sends the closed control signal to the left or right cutter control circuit switch, after a second preset delay, it sends a disconnection control signal to the left or right cutter control circuit switch, the left or right cutter control circuit switch detects the disconnection control signal, and returns the left or right cutter to its position, and the left or right cutter control circuit switch also returns to an untriggered state. After completing the left or right roll changing operation, the operator can manually adjust the three-speed knob switch to return to the untriggered state, ensuring that each component of the equipment returns to the initial state or ready state after each operation, thereby realizing the roll changing operation in the continuous production process and avoiding failures and production interruptions caused by incorrect component position. In addition, a safety delay can be set to ensure that within the safety delay time range after completing the left or right roll changing operation, the left or right roll changing operation will not be repeatedly triggered, ensuring that the operator can manually adjust the three-speed knob switch to return to the untriggered state.

[0069] By setting the three-speed knob switch on the packaging machine body, the operator can control the roll changing operation by turning the knob left or right. It is intuitive and easy to operate, and the operator can quickly start or stop the roll changing operation. The left and right separate control design allows the operator to control the roll changing operation on the left or right side separately, avoiding equipment failure, operator injury or material waste caused by misoperation. Through the precise delay control of the controller, the automatic operation of the cutter and heat sealer is realized, ensuring the sequence, accuracy and stability of the heat sealing and cutting operations, avoiding equipment failure caused by too fast operation, incomplete bonding of new and old paper, insufficient cutting of transparent paper and the resulting poor product quality, reducing manual intervention and equipment downtime, improving overall production efficiency, and improving adaptability to large-scale continuous production scenarios.

[0070] Optionally, based on the above embodiments, the paper tray tensioning switch includes a left paper tray tensioning control button and a right paper tray tensioning control button, the buttons are arranged on the packaging machine body, each button includes a normally open contact, each paper tray tensioning control button is respectively connected to the input pin of the controller, and is used to generate a left or right new paper tray installation control signal and send it to the controller after the left or right paper tray tensioning control button is manually closed;

[0071] The paper tray tensioning circuit switch comprises a left-side paper tray tensioning circuit switch and a right-side paper tray tensioning circuit switch, one end of which is connected to the output pin of the controller respectively, and the other end of which is connected to the left-side paper tray tensioning device and the right-side paper tray tensioning device respectively, and is used for controlling the left-side paper tray tensioning device or the right-side paper tray tensioning device to open to loosen the paper tray when a closing control signal of the left-side paper tray tensioning circuit switch or the right-side paper tray tensioning circuit switch is detected; and controlling the left-side paper tray tensioning device or the right-side paper tray tensioning device to close to tension the paper tray when a disconnection control signal of the left-side paper tray tensioning circuit switch or the right-side paper tray tensioning circuit switch is detected;

[0072] The paper tray tensioning device comprises a left side paper tray tensioning device and a right side paper tray tensioning device, which are respectively arranged around the left side paper tray installation location and the right side paper tray installation location of the packaging machine;

[0073] The paper tray in place detection device comprises a left-side and a right-side paper tray in place detection device, which are respectively arranged at the preset installation positions of the left-side and right-side paper trays of the packaging machine, and are used to generate a tensioning control signal of the left-side or right-side new paper tray and send it to the controller after detecting that the left-side or right-side new paper tray is installed at the preset position;

[0074] The controller is used to generate a closing control signal for the left or right paper tray tensioning circuit switch and send it to the left or right paper tray tensioning circuit switch when a control signal for installing a new paper tray on the left or right side is detected; and to generate a disconnecting control signal for the left or right paper tray tensioning circuit switch and send it to the left or right paper tray tensioning circuit switch after a third preset delay when a control signal for tensioning the new paper tray on the left or right side is detected.

[0075] Specifically, the operator manually closes the tensioning control button of the left or right paper tray to trigger the installation operation of the new left or right paper tray, generates a control signal for installing the new left or right paper tray and sends it to the controller. When the controller detects the control signal for installing the new left or right paper tray, it sends a closing control signal to the tensioning circuit switch of the left or right paper tray. The tensioning circuit switch of the left or right paper tray detects the closing control signal, controls the tensioning device of the left or right paper tray to open, and releases the paper tray for the operator to install the new left or right paper tray. The left or right paper tray in-place detection device detects that the new left or right paper tray is installed at the preset position, generates a control signal for tensioning the new left or right paper tray and sends it to the controller. The controller detects the control signal for tensioning the new left or right paper tray, and after a third preset delay, sends a disconnection control signal to the tensioning circuit switch of the left or right paper tray. The tensioning circuit switch of the left or right paper tray detects the disconnection control signal, controls the tensioning device of the left or right paper tray to close, tensions the paper tray, and the tensioning circuit switch of the left or right paper tray also returns to the untriggered state. In addition, after tensioning the paper tray, the operator can manually adjust the tension control button of the left or right paper tray to the untriggered state, ensuring that each component of the equipment returns to the initial state or the ready state after each installation of the left or right new paper tray, thereby realizing the update of the left or right new paper tray operation during continuous production, avoiding failures and production interruptions caused by incorrect component position. In addition, a safety delay can be set to ensure that within the safety delay time range after the installation of the left or right new paper tray operation is completed, the installation of the left or right new paper tray operation will not be repeatedly triggered, ensuring that the operator can manually adjust the tension control button of the left or right paper tray to return to the untriggered state.

[0076] By setting the control button on the packaging machine body, the operator can control the paper tray tensioning device through intuitive button operation, which is easy to operate and can quickly start or stop the operation of installing a new paper tray. The left and right separate control design allows the operator to control the installation of a new paper tray on the left or right side separately, avoiding equipment failure, safety accidents or material waste caused by misoperation. The installation of new paper trays on both sides can also be carried out simultaneously, reducing equipment downtime and improving production efficiency. Through the precise delay control of the controller, the automatic operation of the paper tray tensioning device is realized, which reduces manual intervention, improves production efficiency and stability, and adapts to large-scale continuous production scenarios, ensuring the order and accuracy of the paper tray tensioning operation and the safety of the operator, and improving the packaging quality.

[0077] Optionally, based on the above embodiments, the controller is a programmable controller;

[0078] Wherein, the input pin of the programmable controller is used to connect to at least one cutting control switch, the input pin of the programmable controller is used to connect to at least one paper tray in place detection device, and the input pin of the programmable controller is used to connect to at least one paper tray tensioning switch;

[0079] The output pin of the programmable controller is used to connect to at least one cutter control circuit switch, the output pin of the programmable controller is used to connect to the heat sealer control circuit switch, and the output pin of the programmable controller is used to connect to at least one paper tray tensioning circuit switch.

[0080] Specifically, the controller can be a programmable controller, and the input pin of the programmable controller is connected to at least one cutting control switch, which is used to receive the roll changing control signal of the corresponding paper roll rack, triggering the subsequent roll changing operation. The input pin of the programmable controller is connected to at least one paper tray in place detection device, which is used to receive the tensioning new paper tray control signal of the corresponding paper roll rack, triggering the subsequent operation after the new paper tray is installed in place. The input pin of the programmable controller is connected to at least one paper tray tensioning switch, which is used to receive the new paper tray installation control signal of the corresponding paper roll rack, triggering the subsequent paper tray release operation. The output pin of the programmable controller is connected to at least one cutter control circuit switch for sending a closing or opening control signal to trigger the cutter at the corresponding position to cut off the old paper edge at the preset old paper edge cutting position or to return the cutter. The output pin of the programmable controller is connected to at least one heat sealer control circuit switch for sending a closing or opening control signal to trigger the heat sealer at the corresponding position to heat seal and bond the new paper to the old paper at the preset bonding position or to return the heat sealer. The output pin of the programmable controller is connected to at least one paper tray tensioning circuit switch for sending a closing or opening control signal to trigger the paper tray tensioning device at the corresponding position to open to loosen the paper tray, or the paper tray tensioning device to close to tension the paper tray.

[0081] By using PLC as a controller and interacting with external devices through input and output pins, precise control of the roll changing operation and new paper tray installation operation of the packaging machine during the production process can be achieved. The input pins of the PLC can receive signals from different components such as the cutting control switch, the paper tray in-place detection device and the paper tray tensioning switch. The output pins of the PLC can accurately control the triggering status of the cutter control circuit switch, the heat sealer control circuit switch and the paper tray tensioning circuit switch to ensure the automated operation of the paper tray tensioning device, cutter and heat sealer, ensure the sequence, accuracy and stability of the heat sealing and cutting operations, ensure the sequence, accuracy of the paper tray tensioning operation and the safety of the operator, reduce manual intervention, improve production efficiency and stability, as well as adaptability to large-scale continuous production scenarios, and improve packaging quality.

[0082] Embodiment 2

[0083] Figure 2 This is a flow chart of a method for automatically gluing and changing rolls of transparent paper for a packaging machine provided in Example 2 of the present invention. This embodiment is applicable to the situation where the transparent paper of the packaging machine is automatically glued and changed rolls when the transparent paper is used up. The method can be executed by a controller configured in the automatic gluing and changing roll control system of the transparent paper of the packaging machine.

[0084] Correspondingly, such as Figure 2 As shown, the method includes:

[0085] S210: When a roll-changing control signal is detected, a closing control signal for a heat sealer control circuit switch is generated and sent to the heat sealer control circuit switch.

[0086] Specifically, the operator triggers a roll-changing control signal, the controller detects the signal, generates a closing control signal, and sends it to the heat sealer control circuit switch to control the heat sealer at the position corresponding to the roll-changing control signal to perform heat-sealing bonding operations on the new paper and the old paper at a preset bonding position.

[0087] S220: After generating a closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch.

[0088] Specifically, the controller waits for the first preset delay to ensure that the heat sealer completes the heat sealing operation, generates a closing control signal, and sends it to the cutter control circuit switch to control the cutter at the position corresponding to the roll change control signal to cut the old paper edge at the preset old paper edge cutting position.

[0089] S230, after generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generating an opening control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, and generating an opening control signal for the cutter control circuit switch and sending it to the cutter control circuit switch.

[0090] Specifically, the controller waits for the second preset delay to ensure that the cutter completes the cutting operation, generates a corresponding disconnection control signal, and sends it to the heat sealer control circuit switch and the cutter control circuit switch to control the heat sealer and the cutter at the position corresponding to the roll change control signal to stop the operation and return to the position to complete the roll change process. In addition, a safety delay can be set to ensure that the roll change operation will not be triggered repeatedly within the safety delay time range after the roll change operation is completed, and ensure that the operator can manually adjust the cutting control switch to restore to the untriggered state.

[0091] S240: When a new paper tray installation control signal is detected, a closing control signal for a paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch.

[0092] Specifically, the operator triggers a new paper tray installation control signal, the controller detects the signal, generates a closed control signal, and sends it to the paper tray tensioning circuit switch to control the paper tray tensioning device at the position corresponding to the new paper tray installation control signal to open, so as to loosen the paper tray for the operator to install the new paper tray.

[0093] S250: When a control signal for tensioning a new paper tray is detected, after a third preset delay, a disconnect control signal for a paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch.

[0094] Specifically, when the controller detects the control signal for tensioning the new paper tray, it waits for the third preset delay to ensure that the new paper tray is installed in place and the operator has completed the installation operation, generates a disconnection control signal, and sends it to the paper tray tensioning circuit switch to control the paper tray tensioning device at the position corresponding to the new paper tray installation control signal to close to tension the paper tray. In addition, a safety delay can be set to ensure that within the safety delay time range after the new paper tray installation operation is completed, the new paper tray installation operation will not be repeatedly triggered, and the operator can manually adjust the paper tray tensioning switch to restore it to an untriggered state.

[0095] According to the technical solution of the embodiment of the present invention, the controller generates a closing control signal for a heat sealer control circuit switch and sends it to the heat sealer control circuit switch when a roll changing control signal is detected; after generating the closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generates a closing control signal for the cutter control circuit switch and sends it to the cutter control circuit switch; after generating the closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generates a disconnection control signal for the heat sealer control circuit switch and sends it to the heat sealer control circuit switch, and generates a disconnection control signal for the cutter control circuit switch and sends it to the cutter control circuit switch; generates a closing control signal for the paper tray tensioning circuit switch and sends it to the paper tray tensioning circuit switch when a new paper tray installation control signal is detected; generates a disconnection control signal for the paper tray tensioning circuit switch and sends it to the paper tray tensioning circuit switch when a new paper tray tensioning control signal is detected. Only the corresponding switches need to be operated manually, and the controller can realize the automation of paper tray arrival detection, tensioning of new paper tray, heat sealing and cutting off the old paper edge, which reduces labor costs, improves the efficiency and accuracy of roll changing, and improves the efficiency, continuity and stability of production.

[0096] Specific application scenarios

[0097] For ease of understanding, the specific application scenarios applicable to each embodiment of the present invention are now described. Originally, some packaging machines were equipped with automatic transparent paper roll changing devices, which would perform heat sealing and bonding when the transparent paper was used up. However, during the roll changing process after the transparent paper roll was used up, the transparent paper needs to be positioned, cut and adjusted. If the roll changing function of the packaging machine is continued to be used, it will affect the positioning position of the transparent paper color film, causing the color film cutting position to deviate, resulting in a large number of defective cigarette packs, and the color film cutting position changes too much, requiring the operator to re-thread the paper for positioning, reducing the operating efficiency of the equipment. After the transparent paper is installed in the positioning position, the operator can only manually cut the transparent paper and then use tape to bond it to ensure that the transparent paper color film is in the normal position to ensure that the cutting position will not deviate. Automatic roll replacement of transparent paper cannot be achieved, and new transparent paper rolls cannot be preset when the equipment is running. When changing rolls, the machine needs to be stopped, the old paper needs to be cut off first, the old paper roll needs to be removed, and then the new paper roll needs to be replaced and glued to the correct position. If the tape is too thick, it may cause blockage of transparent paper, which increases the labor cost of changing rolls and reduces the operating efficiency of the equipment.

[0098] In order to solve the above problems, the embodiment of the present invention proposes a control system for automatic bonding and changing rolls of transparent paper for packaging machines. Taking the C600 color film transparent paper packaging machine as an example, Figure 3The present invention is an electrical schematic diagram of a control system for automatic bonding and roll changing of transparent paper in a packaging machine applicable to an embodiment of the present invention. The system comprises: a Siemens S7-200 PLC, a left paper tray in-place detection device B1, a right paper tray in-place detection device B2, a left cutting knob S1, a right cutting knob S2, a left paper tray tensioning button S3, a right paper tray tensioning button S4, a left cutter solenoid valve control relay K1, a right cutter solenoid valve control relay K2, a heat sealer solenoid valve control relay K3, a left paper tray tensioning solenoid valve control relay K4, and a right paper tray tensioning solenoid valve control relay K5, etc., and can automatically heat seal, bond, and roll change the transparent paper on the left and right paper trays.

[0099] In a specific example, a Siemens PLC is installed in the C600 transparent paper packaging machine cabinet. The PLC is powered by positive 24V and negative 24V power lines. A 3-speed knob switch is added to the C600 transparent paper packaging machine touch screen button board. The knob is equipped with 2 normally open contacts. One end of the 2 normally open contacts is connected to the 24V positive power line, and the other end of the 2 normally open contacts is connected to the PLC input points I0.0 and I0.1 respectively. The left paper tray tensioning control button and the right paper tray tensioning control button are installed on the body of the small transparent packaging machine. Each button has a normally open contact. One end of the contact is connected to the 24V positive power line, and the other end is connected to the PLC input points I0.4 and I0.5 respectively. The input points I0.3 and I0.2 of the PLC are respectively connected to the output signals of the in-place sensors B1 and B2 installed at the rear end of the paper tray rack. Relays K1, K2, K3, K4 and K5 are installed in the packaging machine cabinet. One end of relay K1 is connected to PLC output point Q0.0, the other end of relay K1 is connected to 24V negative power line, the common end of the normally open contact of relay K1 is connected to 24V positive power line, and the other end is connected to the left cutter solenoid valve coil pin 1 to control the left cutter to work. One end of relay K2 is connected to PLC output point Q0.1, the other end of relay K2 is connected to 24V negative power line, the common end of the normally open contact of relay K2 is connected to 24V positive power line, and the other end is connected to the right cutter solenoid valve coil pin 1 to control the right cutter to work. One end of relay K3 is connected to PLC output point Q0.2, the other end of relay K3 is connected to 24V negative power line, the common end of the normally open contact of relay K3 is connected to 24V positive power line, and the other end is connected to the heat sealer solenoid valve coil pin 1 to control the heat sealer to work. One end of relay K4 is connected to PLC output point Q0.3, the other end of relay K4 is connected to 24V negative power line, the common end of normally open contact of relay K4 is connected to 24V positive power line, the other end is connected to pin 1 of left paper tray tensioning solenoid valve coil, and controls the operation of left paper tray tensioner. One end of relay K5 is connected to PLC output point Q0.4, the other end of relay K5 is connected to 24V negative power line, the common end of normally open contact of relay K5 is connected to 24V positive power line, the other end is connected to pin 1 of right paper tray tensioning solenoid valve coil, and controls the operation of right paper tray tensioner.

[0100] When the equipment is running, the left or right paper tray tensioning button S3 or S4 is pressed manually, and the PLC input point I0.4 or I0.5 receives a 24V (volt) high-level signal. The PLC output point Q0.3 or Q0.4 outputs a 24V high-level to connect the relay K4 or K5. The normally open contacts of K4 or K5 are closed, and the left or right paper tray tensioning solenoid valve installed on the equipment body is energized to work. The operation of the solenoid valve will open the paper tray tensioning mechanism, and the new paper tray is manually installed. When the paper tray is in place, the left or right paper tray in place detection device B1 or B2 detects the paper tray, and the PLC input point I0.3 or I0.2 receives a 24V high-level signal. After the internal program timer has a preset tensioning delay, the PLC automatically disconnects the relay, the solenoid valve loses power, and the paper tray tensioning mechanism will close and tension the new paper tray, and then preset the color film transparent paper positioning mark to the specified position of the new paper.

[0101] When the old paper tray is almost exhausted, the equipment is stopped manually, the wheel is turned manually, the positioning mark of the old paper tray's colored film transparent paper is preset to the specified position of the old paper, and then the left or right cutting knob switch S1 or S2 is rotated manually, the PLC input point I0.1 or I0.0 will receive a 24V high-level signal, and the PLC output point Q0.2 will output a 24V high-level signal to connect the relay K3, and the heat sealer solenoid valve will be energized to work. The heat sealer clamps and heat-seals the new paper to the old paper. After the preset cutting delay of the internal program timer, the PLC output point Q0.0 or Q0.1 outputs a 24V high-level signal to connect the relay K1 or K2, and the left or right cutter solenoid valve is energized to cut off the edge of the old paper. After the preset return delay of the internal program timer, the PLC automatically disconnects the relay, and the cutter and heat sealer return to their positions. Then the equipment is run, and the new and old transparent papers will be bonded to the correct position to ensure the normal operation of the equipment.

[0102] The automatic bonding and roll changing control system for transparent paper of the packaging machine proposed in the embodiment of the present invention realizes automatic control through PLC, and can automatically detect the paper tray in place, automatically tension the new paper tray, automatically heat seal and bond, and automatically cut off the edge of the old paper. It reduces manual intervention and improves production efficiency. The operator only needs to press the corresponding button or knob switch to complete the replacement and bonding process of the paper tray. The delay control of the PLC internal program ensures the sequential execution of each step and reduces the possibility of operational errors. The system ensures that the bonding position of the new and old transparent papers is accurate through the positioning mark preset function, avoids packaging quality problems caused by position deviation, and improves the consistency and aesthetics of the product. The delay function controlled by PLC and the precise action of the relay ensure the coordinated action of the cutter and the heat sealer, avoids equipment failure or material damage caused by asynchronous action, and improves the operation stability of the equipment. Since most of the roll changing and bonding processes are completed automatically by the equipment, the dependence on operators is reduced, the labor cost is reduced, and the errors and risks caused by human operation are also reduced. The automated roll changing and bonding process shortens the roll changing time, reduces equipment downtime, and improves overall production efficiency, which is especially suitable for large-scale continuous production scenarios.

[0103] Embodiment 3

[0104] In some embodiments, the automatic bonding and roll changing control method of the transparent paper of the packaging machine can be implemented as a computer program, that is:

[0105] When a roll-changing control signal is detected, a closing control signal for a heat sealer control circuit switch is generated and sent to the heat sealer control circuit switch;

[0106] After generating a closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch;

[0107] After generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generating an opening control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, and generating an opening control signal for the cutter control circuit switch and sending it to the cutter control circuit switch;

[0108] When a new paper tray installation control signal is detected, a closing control signal for a paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch;

[0109] When the control signal for tensioning the new paper tray is detected, after a third preset delay, a disconnect control signal for the paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch.

[0110] It is tangibly contained in a computer-readable storage medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the packaging machine transparent paper automatic gluing and roll changing control system via the ROM and / or the communication unit. When the computer program is loaded into the RAM and executed by the processor, one or more steps of the packaging machine transparent paper automatic gluing and roll changing control method described above can be executed. Alternatively, in other embodiments, the processor can be configured to execute the packaging machine transparent paper automatic gluing and roll changing control method by any other appropriate means (for example, by means of firmware).

[0111] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0112] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0113] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0114] In order to provide interaction with the user, the system and technology described herein can be implemented on a packaging machine transparent paper automatic gluing and reel changing control system, which has: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball), through which the user can provide input to the packaging machine transparent paper automatic gluing and reel changing control system. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and the input from the user can be received in any form (including sound input, voice input, or tactile input).

[0115] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0116] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0117] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0118] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A packaging machine transparent paper automatic bonding and roll changing control system, characterized in that: include: A cutting control switch, a cutter control circuit switch, a cutter, a heat sealer control circuit switch, a heat sealer and a controller; the controller is electrically connected to the cutting control switch, the controller is electrically connected to the cutter control circuit switch, the cutter control circuit switch is electrically connected to the cutter, and the cutter is arranged at a preset old paper edge cutting position of the packaging machine; the controller is electrically connected to the heat sealer control circuit switch, the heat sealer control circuit switch is electrically connected to the heat sealer, and the heat sealer is arranged at a preset new paper and old paper heat sealing bonding position of the packaging machine; The cutting control switch is used to generate a roll changing control signal and send it to the controller after the cutting control switch is manually closed; The heat sealer control circuit switch is used to control the heat sealer to perform heat-seal bonding operation on the new paper and the old paper at a preset bonding position when a closed control signal to the heat sealer control circuit switch is detected; When a disconnection control signal of the heat sealer control circuit switch is detected, the heat sealer is returned to its original position; The cutter control circuit switch is used to control the cutter to cut off the old paper edge at a preset old paper edge cutting position when a closed control signal of the cutter control circuit switch is detected; and to return the cutter to its original position when a disconnection control signal of the cutter control circuit switch is detected; The controller is used to generate a closing control signal for a heat sealer control circuit switch and send it to the heat sealer control circuit switch when a roll changing control signal is detected; after generating the closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generate a closing control signal for a cutter control circuit switch and send it to the cutter control circuit switch; after generating the closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generate a disconnection control signal for the heat sealer control circuit switch and send it to the heat sealer control circuit switch, and generate a disconnection control signal for the cutter control circuit switch and send it to the cutter control circuit switch.

2. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 1 is characterized in that: The cutter control circuit switch is a cutter control relay, the power supply end of the cutter control relay is electrically connected to the controller; the normally open contact of the cutter control relay is electrically connected to the power supply end of the cutter solenoid valve; The controller is specifically configured to, after generating a closing control signal for a heat sealer control circuit switch and sending it to the heat sealer control circuit switch, send a high level signal to a cutter control relay after a first preset delay, so as to trigger the cutter control relay to energize the cutter solenoid valve after being turned on; and After sending a high level signal to the cutter control relay, after a second preset delay, a low level signal is sent to the cutter control relay to trigger the cutter control relay to disconnect and cause the cutter solenoid valve to lose power.

3. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 2, characterized in that: The heat sealer control circuit switch is a heat sealer control relay, the power supply end of the heat sealer control relay is electrically connected to the controller; the normally open contact of the heat sealer control relay is electrically connected to the power supply end of the heat sealer solenoid valve; The controller is specifically configured to, when detecting a roll-changing control signal, send a high-level signal to a heat sealer control relay, so as to trigger the heat sealer control relay to energize the heat sealer solenoid valve after being turned on; and After sending a high level signal to the cutter control relay, after a second preset delay, a low level signal is sent to the heat sealer control relay to trigger the heat sealer control relay to disconnect and then de-energize the heat sealer solenoid valve.

4. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 1, characterized in that: The system further comprises: a paper tray tensioning switch, a paper tray tensioning circuit switch, a paper tray tensioning device and a paper tray in place detection device; the controller is electrically connected to the paper tray tensioning switch, the controller is electrically connected to the paper tray tensioning circuit switch, the paper tray tensioning circuit switch is electrically connected to the paper tray tensioning device, the paper tray tensioning device is arranged around the paper tray installation position of the packaging machine, the paper tray in place detection device is arranged at a preset installation position of the paper tray of the packaging machine, and the controller is electrically connected to the paper tray in place detection device; The paper tray tensioning switch is used to generate a new paper tray installation control signal and send it to the controller after the paper tray tensioning switch is manually closed; The paper tray tensioning circuit switch is used to control the paper tray tensioning device to open to loosen the paper tray when a closing control signal of the paper tray tensioning circuit switch is detected; and to control the paper tray tensioning device to close to tension the paper tray when a disconnection control signal of the paper tray tensioning circuit switch is detected; The paper tray in place detection device is used to generate a control signal for tensioning the new paper tray and send it to the controller after detecting that the new paper tray is installed in the preset position; The controller is used to generate a closing control signal for the paper tray tensioning circuit switch and send it to the paper tray tensioning circuit switch when a new paper tray installation control signal is detected; and to generate a disconnecting control signal for the paper tray tensioning circuit switch and send it to the paper tray tensioning circuit switch after a third preset delay when a new paper tray tensioning control signal is detected.

5. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 4, characterized in that: The paper tray tensioning circuit switch is a paper tray tensioning control relay, the power supply end of the paper tray tensioning control relay is electrically connected to the controller; the normally open contact of the paper tray tensioning control relay is electrically connected to the power supply end of the paper tray tensioning solenoid valve; The controller is specifically used to, when a new paper tray installation control signal is detected, send a high-level signal to the paper tray tensioning control relay to trigger the paper tray tensioning control relay to energize the paper tray tensioning solenoid valve after being connected; and when a new paper tray tensioning control signal is detected, after a third preset delay, send a low-level signal to the paper tray tensioning control relay to trigger the paper tray tensioning control relay to de-energize the paper tray tensioning solenoid valve after being disconnected.

6. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 4, characterized in that: The paper tray in place detection device is a photoelectric detection device, and the paper tray in place detection device comprises: a transmitting end device and a receiving end device; At the preset installation position of the paper tray, the transmitting end device and the receiving end device are respectively arranged at the two ends of the paper tray rack, and are used to detect the installation result of the new paper tray in real time by means of photoelectric detection, and after detecting that the new paper tray is installed at the preset position, generate a control signal for tensioning the new paper tray and send it to the controller.

7. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 1, characterized in that: The cutting control switch is a three-speed rotary switch, which is arranged on the packaging machine body, and includes: a left normally open contact and a right normally open contact, which are electrically connected to the input pins of the controller respectively, and are used to generate a left roll changing control signal or a right roll changing control signal and send it to the controller after the left normally open contact or the right normally open contact is manually closed; The cutter control circuit switch comprises a left cutter control circuit switch and a right cutter control circuit switch, one end of the left cutter control circuit switch and the right cutter control circuit switch are respectively connected to the output pin of the controller, and the other end of the left cutter control circuit switch and the right cutter control circuit switch are respectively electrically connected to the left cutter and the right cutter, the left cutter control circuit switch is used to control the left cutter to cut the old paper edge at a preset old paper edge cutting position when a closed control signal to the left cutter control circuit switch is detected; and return the left cutter to its position when a disconnection control signal to the cutter control circuit switch is detected; the right cutter control circuit switch is used to control the right cutter to cut the old paper edge at a preset old paper edge cutting position when a closed control signal to the right cutter control circuit switch is detected; and return the right cutter to its position when a disconnection control signal to the cutter control circuit switch is detected; The cutter comprises a left cutter and a right cutter, wherein the left cutter is arranged at a preset old paper edge cutting position of the left paper tray of the packaging machine, and the right cutter is arranged at a preset old paper edge cutting position of the right paper tray of the packaging machine; The controller is used to generate a closing control signal for a heat sealer control circuit switch and send it to the heat sealer control circuit switch when a left or right roll changing control signal is detected; after generating the closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generate a closing control signal for the left or right cutter control circuit switch and send it to the left or right cutter control circuit switch; after generating the closing control signal for the left or right cutter control circuit switch and sending it to the left or right cutter control circuit switch, after a second preset delay, generate a disconnection control signal for the left or right cutter control circuit switch and send it to the left or right cutter control circuit switch.

8. The automatic bonding and roll changing control system for transparent paper in packaging machines according to claim 4, characterized in that: The paper tray tensioning switch includes a left paper tray tensioning control button and a right paper tray tensioning control button, the buttons are arranged on the packaging machine body, each button includes a normally open contact, each paper tray tensioning control button is respectively connected to the input pin of the controller, and is used to generate a left or right new paper tray installation control signal and send it to the controller after the left or right paper tray tensioning control button is manually closed; The paper tray tensioning circuit switch comprises a left-side paper tray tensioning circuit switch and a right-side paper tray tensioning circuit switch, one end of which is connected to the output pin of the controller respectively, and the other end of which is connected to the left-side paper tray tensioning device and the right-side paper tray tensioning device respectively, and is used for controlling the left-side paper tray tensioning device or the right-side paper tray tensioning device to open to loosen the paper tray when a closing control signal of the left-side paper tray tensioning circuit switch or the right-side paper tray tensioning circuit switch is detected; and controlling the left-side paper tray tensioning device or the right-side paper tray tensioning device to close to tension the paper tray when a disconnection control signal of the left-side paper tray tensioning circuit switch or the right-side paper tray tensioning circuit switch is detected; The paper tray tensioning device comprises a left side paper tray tensioning device and a right side paper tray tensioning device, which are respectively arranged around the left side paper tray installation location and the right side paper tray installation location of the packaging machine; The paper tray in place detection device comprises a left-side and a right-side paper tray in place detection device, which are respectively arranged at the preset installation positions of the left-side and right-side paper trays of the packaging machine, and are used to generate a tensioning control signal of the left-side or right-side new paper tray and send it to the controller after detecting that the left-side or right-side new paper tray is installed at the preset position; The controller is used to generate a closing control signal for the left or right paper tray tensioning circuit switch and send it to the left or right paper tray tensioning circuit switch when a control signal for installing a new paper tray on the left or right side is detected; and to generate a disconnecting control signal for the left or right paper tray tensioning circuit switch and send it to the left or right paper tray tensioning circuit switch after a third preset delay when a control signal for tensioning the new paper tray on the left or right side is detected.

9. The automatic bonding and roll changing control system for transparent paper in a packaging machine according to any one of claims 1 to 8, characterized in that: The controller is a programmable controller; Wherein, the input pin of the programmable controller is used to be connected to at least one cutting control switch, the input pin of the programmable controller is used to be connected to at least one paper tray in place detection device, and the input pin of the programmable controller is used to be connected to at least one paper tray tensioning switch; The output pin of the programmable controller is used to connect to at least one cutter control circuit switch, the output pin of the programmable controller is used to connect to the heat sealer control circuit switch, and the output pin of the programmable controller is used to connect to at least one paper tray tensioning circuit switch.

10. A method for controlling automatic bonding and roll changing of transparent paper in a packaging machine, characterized in that: The method is performed by a controller configured in a transparent paper automatic bonding and roll changing control system for a packaging machine as claimed in any one of claims 1 to 9, and comprises: When a roll-changing control signal is detected, a closing control signal for a heat sealer control circuit switch is generated and sent to the heat sealer control circuit switch; After generating a closing control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, after a first preset delay, generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch; After generating a closing control signal for the cutter control circuit switch and sending it to the cutter control circuit switch, after a second preset delay, generating an opening control signal for the heat sealer control circuit switch and sending it to the heat sealer control circuit switch, and generating an opening control signal for the cutter control circuit switch and sending it to the cutter control circuit switch; When a new paper tray installation control signal is detected, a closing control signal for a paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch; When the control signal for tensioning the new paper tray is detected, after a third preset delay, a disconnect control signal for the paper tray tensioning circuit switch is generated and sent to the paper tray tensioning circuit switch.

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