Control method of can sealing machine

Abstract

The invention discloses a control method of a can sealing machine, and relates to the technical field of can sealing machines. The method comprises the following steps: starting an abnormal state detection process; starting a state detection process of the lubrication station; whether cans exist on the cupping chain or not is judged through a detection switch on the cupping chain; if the can is detected on the can shifting chain, whether the current cover separation state of the cover separation mechanism is opened or not is judged through a detection switch on the cover separation mechanism; the covers separated by the cover separating mechanism are transferred to the tank feeding star wheel, and then whether the covers exist at the cover feeding position of the tank feeding star wheel or not is judged through the lower cover detection switch; double seaming actions are performed on cans with covers on the central star wheel through the seaming roller; the seamed cans are transferred to the can discharging star wheel from the center star wheel, and whether the corresponding cans are discharged out of the corresponding stations of the can discharging star wheel or not is judged through the can discharging detection switch. Safe, efficient and automatic production of the can sealing machine can be achieved, and high market application value is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of can sealing machines, and in particular relates to a control method for a can sealing machine. Background Art

[0002] Cans are widely used in food, beverage and other industries for packaging due to their good sealing, convenience and recyclability. As an important part of the can production line, the can sealing machine is responsible for sealing the can with the filling material to achieve the purpose of sealing the can. At present, the can sealing machine in the prior art is as shown in the attached manual. Figure 4 As shown, the working process is generally as follows: 1) a can with a filling material enters the can sealing machine through a can-moving chain (1); 2) when a can enters the can sealing machine, the detection switch on the can-moving chain (1) detects a corresponding workstation signal, and the cover separation mechanism (2) performs a cover separation action at the corresponding workstation; 3) under the action of the can-moving chain (1), the can is further moved into the can sealing machine; 4) under the action of the can-feeding star wheel (3), the cover is synchronously moved to the top of the can; 5) under the action of the can-sealing machine cam, the can cover is lifted after being engaged and pressed into the cover pressing head (5); 6) the can-feeding star wheel (3) transfers the can with the cover to the central star wheel (4); 7) the can with the cover on the central star wheel (4) is double-sealed by the sealing roller (6); 8) the sealed can is transferred from the central star wheel (4) to the can-discharging star wheel (7) under the action of the cam; 9) the sealed can is sent out of the can sealing machine through the can-discharging star wheel (7) and enters the subsequent process. Since can seamers mostly use mechanical transmission structures, and the traditional control method of can seamers only has simple equipment start and stop and cap cutting control, lacking certain automation and safety control logic, it may cause damage to the can seamer when an abnormal situation occurs. Therefore, it is urgent to study a control method for can seamers to solve the above problems. Summary of the invention

[0003] The present invention provides a control method for a can sealing machine, the purpose of which is to solve the technical problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is a control method for a can sealing machine, comprising the following steps:

[0006] Step 1: After the equipment is powered on, the abnormal state detection process is automatically started; if there is an abnormal state, the specific abnormal information is fed back and the equipment state is marked as abnormal; if all states are normal, the equipment state is marked as normal and the start command of the lubrication motor is triggered;

[0007] Step 2: When the start command of the lubrication motor is triggered, the state detection process of the lubrication station is started; if there is an abnormal state, the specific abnormal information is fed back and the equipment state is marked as abnormal; if all states are normal, the main motor is started and the equipment enters the production state;

[0008] Step 3: After the equipment enters the production state, the detection switch on the can-shifting chain is used to determine whether there is a can on the can-shifting chain; if a can is detected on the can-shifting chain, the detection switch on the cover-shifting mechanism is used to determine whether the current cover-shifting mechanism is open; if the cover-shifting mechanism is in the open state, the cover-shifting mechanism does not take any action and continues to remain in the open state; if the cover-shifting mechanism is in the closed state, the cover-shifting mechanism is opened; if no can is detected on the can-shifting chain, the detection switch on the cover-shifting mechanism is used to determine whether the current cover-shifting mechanism is open: if the cover-shifting mechanism is in the closed state, no action is taken; if the cover-shifting mechanism is in the open state, the cover-shifting mechanism is closed and the cover-shifting mechanism does not perform the cover-shifting action;

[0009] Step 4: The lid separated by the lid separation mechanism is transferred to the can feeding star wheel, and then the lid lowering detection switch is used to determine whether there is a lid at the lid feeding position of the can feeding star wheel, and the lid feeding position corresponds to the can position on the can shifting chain; if a lid signal is detected at the lid feeding position of the can feeding star wheel, the next step is entered; if no lid signal is detected at the lid feeding position of the can feeding star wheel, it indicates that the lid separation mechanism is in an abnormal state, and a lid lowering reminder message is fed back, and the main motor is stopped;

[0010] Step 5: When the lid on the can-feeding star wheel is directly above the can on the can-moving chain, the lid on the can-feeding star wheel is pressed onto the corresponding can on the can-moving chain by the capping head, and then the can with the lid is transferred to the central star wheel by the can-feeding star wheel, and then the can with the lid on the central star wheel is double-sealed by the sealing roller;

[0011] Step 6: The cans after rolling and sealing are transferred from the central star wheel to the can discharge star wheel, and the can discharge detection switch is used to determine whether the corresponding can is discharged from the corresponding station of the can discharge star wheel; if there is a can feeding action but no can discharge is detected, a can jam alarm prompt is issued and the main motor is stopped; if a can is detected to be discharged, the can liquid level detection and can internal pressure detection are carried out in turn; if the can liquid level detection or can internal pressure detection fails, the abnormal can is rejected; if the can liquid level detection and can internal pressure detection are both qualified, the can is sent out of the can sealing machine and enters the subsequent process;

[0012] Step 7: Repeat steps 1 to 6 to achieve fully automated operation of the can sealing machine.

[0013] As a preferred technical solution of the present invention, when the equipment needs to stop, the stop button is triggered, and the can-moving chain stops the cans and stops the cans from entering; after the stop button is triggered, it is determined whether there are cans inside the equipment that have not been discharged. If there are cans inside the equipment that have not been discharged, normal production is performed according to steps one to six; if all the cans inside the equipment have been discharged, the main motor is powered off and shut down.

[0014] As a preferred technical solution of the present invention, when the equipment needs to be stopped urgently, the emergency stop button is triggered, the abnormal state alarm of the equipment in step 1 is executed, and the main motor stops immediately.

[0015] As a preferred technical solution of the present invention, the abnormal state detection process in the step one includes: judging whether the safety door is open; if the safety door is detected to be open, feeding back the safety door abnormality and marking the state abnormality; if the safety door is detected not to be open, judging whether the transmission handwheel is disengaged; if the transmission handwheel is detected not to be disengaged, feeding back the handwheel abnormality and marking the state abnormality; if the transmission handwheel is detected to be disengaged, judging whether the emergency stop button is triggered; if the emergency stop button is detected to be in a triggered state, feeding back the emergency stop abnormality and marking the state abnormality; if the emergency stop button is detected to be in an untriggered state, judging whether the can throwing is triggered; if the can throwing is detected to be triggered, feeding back the can throwing abnormality and marking the state abnormality; if the can throwing is detected not to be triggered, judging whether the lubrication abnormality is triggered; if the lubrication abnormality is detected to be triggered, feeding back the lubrication abnormality and marking the state abnormality; if the lubrication abnormality is detected not to be triggered, marking the device state as normal.

[0016] As a preferred technical solution of the present invention, the status detection process of the lubrication station in step 2 includes: judging whether the lubrication liquid level is normal; if the lubrication liquid level is detected to be in an abnormal state, the liquid level abnormality is fed back, the lubrication motor cannot be started, and the abnormal state is marked; if the lubrication liquid level is detected to be in a normal state, judging whether the lubrication motor is started; if the lubrication motor is detected to be not started, the lubrication motor is started; if the lubrication motor is detected to be started, judging whether the oil pressure is normal; if the oil pressure is detected to be in an abnormal state, the oil pressure abnormality is fed back, the lubrication motor is stopped, and the abnormal state is marked; if the oil pressure is detected to be in a normal state, the lubrication oil is transported to the distributor via a pipeline, and it is judged whether the distributor count is normal; if the distributor count is detected to be in an abnormal state, the distributor is prompted to be abnormal, the lubrication motor is stopped, and the abnormal state is marked; if the distributor count is detected to be in a normal state, it is judged again whether the lubrication liquid level is normal.

[0017] The present invention has the following beneficial effects:

[0018] The present invention establishes a startup abnormal state detection process and a state detection process of the lubrication station, and optimizes the control logic of parts such as the canning chain, the capping mechanism, the can feeding star wheel and the can discharging star wheel, so that not only the safety detection logic of the can sealing machine is improved, but also the safe, efficient and automated production of the can sealing machine can be ensured, and the market application value is relatively high.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 The present invention is a control logic diagram of a control method for a can sealing machine.

[0022] Figure 2 It is a control logic diagram of the abnormal state detection process of the present invention.

[0023] Figure 3 This is a control logic diagram of the state detection process of the lubrication station of the present invention.

[0024] Figure 4 It is a structural schematic diagram of a can sealing machine in the prior art. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] See also Figure 1 As shown, the present invention is a control method for a can sealing machine, comprising the following steps:

[0028] Step 1: After the equipment is powered on, the abnormal state detection process is automatically started; if there is an abnormal state, the specific abnormal information is fed back and the equipment state is marked as abnormal; if all states are normal, the equipment state is marked as normal and the start instruction of the lubrication motor is triggered; in addition, the abnormal state detection process continuously detects the equipment state during the operation of the equipment. Once an abnormal state alarm is issued, the main motor stops immediately and is stopped by the brake to ensure the safety of the equipment and personnel;

[0029] Step 2: When the start command of the lubrication motor is triggered, the state detection process of the lubrication station is started; if there is an abnormal state, the specific abnormal information is fed back and the abnormal state of the equipment is marked; if all states are normal, the main motor is started and the equipment enters the production state; in addition, the main motor cannot be started without the lubrication motor, which can ensure the safe and stable operation of the equipment;

[0030] Step 3: After the equipment enters the production state, the detection switch on the can-shifting chain is used to determine whether there is a can on the can-shifting chain; if a can is detected on the can-shifting chain, the detection switch on the cover-shifting mechanism is used to determine whether the current cover-shifting mechanism is open; if the cover-shifting mechanism is in the open state, the cover-shifting mechanism does not take any action and continues to remain in the open state; if the cover-shifting mechanism is in the closed state, the cover-shifting mechanism is opened; if no can is detected on the can-shifting chain, the detection switch on the cover-shifting mechanism is used to determine whether the current cover-shifting mechanism is open: if the cover-shifting mechanism is in the closed state, no action is taken; if the cover-shifting mechanism is in the open state, the cover-shifting mechanism is closed and the cover-shifting mechanism does not perform the cover-shifting action;

[0031] Step 4: The lid separated by the lid separation mechanism is transferred to the can feeding star wheel, and then the lid lowering detection switch is used to determine whether there is a lid at the lid feeding position of the can feeding star wheel, and the lid feeding position corresponds to the can position on the can shifting chain; if a lid signal is detected at the lid feeding position of the can feeding star wheel, the next step is entered; if no lid signal is detected at the lid feeding position of the can feeding star wheel, it indicates that the lid separation mechanism is abnormal, and there may be problems such as lid jamming and device damage on the lid channel of the lid separation mechanism, and a lid-not-lowered reminder message is fed back, and the main motor is stopped to prevent cans without corresponding lids from entering the can sealing process of the can sealing machine and causing damage to the can sealing machine;

[0032] Step 5: When the lid on the can-feeding star wheel is directly above the can on the can-moving chain, the lid on the can-feeding star wheel is pressed onto the corresponding can on the can-moving chain by the capping head, and then the can with the lid is transferred to the central star wheel by the can-feeding star wheel, and then the can with the lid on the central star wheel is double-sealed by the sealing roller;

[0033] Step 6. The cans after rolling and sealing are transferred from the central star wheel to the can discharge star wheel. The can discharge detection switch is used to determine whether the corresponding can is discharged from the corresponding station of the can discharge star wheel; if there is a can feeding action but no can discharge is detected, a can jam alarm prompt is issued and the main motor is stopped to prevent further impact on subsequent products; if a can is detected to be discharged, the can liquid level detection and can internal pressure detection are carried out in turn; if the can liquid level detection or can internal pressure detection fails, the abnormal can is rejected; if the can liquid level detection and can internal pressure detection are both qualified, the can is sent out of the can sealing machine and enters the subsequent process to complete further packaging;

[0034] Step 7. At this time, the entire rolling and sealing process after the cans enter the can seamer is completed. Because the cans enter the can seamer continuously from one station to another on the can chain, repeat steps 1 to 6 to achieve full automatic operation of the can seamer.

[0035] Among them, when the equipment needs to stop, the stop button is triggered, and the can-moving chain stops the cans and stops the cans from entering; when the stop button is triggered, it is determined whether there are cans inside the equipment that have not been discharged. If there are cans inside the equipment that have not been discharged, normal production actions are performed according to steps one to six; if all the cans inside the equipment have been discharged, the main motor is powered off and shut down; in addition, when normal production stops, the main motor will not stop immediately, reducing the loss of customer materials and can covers.

[0036] In addition, when the equipment needs to be stopped urgently, the emergency stop button is triggered, the abnormal status alarm of the equipment in step one is executed, the main motor stops immediately, and the brake is used to stop it to ensure the safety of equipment and personnel.

[0037] Embodiment 2:

[0038] Based on Example 1, Figure 2 As shown, the abnormal state detection process in step one includes: judging whether the safety door is open; if the safety door is detected to be open, feedback that the safety door is abnormal and mark the state abnormal; if the safety door is detected not to be open, judging whether the transmission handwheel is disengaged; if the transmission handwheel is detected not to be disengaged, feedback that the handwheel is abnormal and mark the state abnormal; if the transmission handwheel is detected to be disengaged, judging whether the emergency stop button is triggered; if the emergency stop button is detected to be in a triggered state, feedback that the emergency stop is abnormal and mark the state abnormal; if the emergency stop button is detected to be in an untriggered state, judging whether the can throwing is triggered; if the can throwing is detected to be triggered, feedback that the can throwing is abnormal and mark the state abnormal; if the can throwing is detected not to be triggered, judging whether the lubrication abnormality is triggered; if the lubrication abnormality is detected to be triggered, feedback that the lubrication abnormality is abnormal and mark the state abnormal; if the lubrication abnormality is detected not to be triggered, marking the device state is normal. By establishing a specific abnormal state detection process, the safety detection logic of the can sealing machine can be optimized and the operation stability of the can sealing machine can be ensured.

[0039] Embodiment three:

[0040] Based on Example 2, Figure 3 As shown, the state detection process of the lubrication station in step 2 includes: judging whether the lubrication level is normal; if the lubrication level is detected to be in an abnormal state, the abnormal level is fed back, the lubrication motor cannot be started, and the abnormal state is marked; if the lubrication level is detected to be in a normal state, it is judged whether the lubrication motor is started; if the lubrication motor is detected to be not started, the lubrication motor is started; if the lubrication motor is detected to be started, it is judged whether the oil pressure is normal; if the oil pressure is detected to be in an abnormal state, the oil pressure is fed back abnormally, the lubrication motor is stopped, and the abnormal state is marked; if the oil pressure is detected to be in a normal state, the lubrication oil is transported to the distributor through the pipeline, and it is judged whether the distributor count is normal; if the distributor count is detected to be in an abnormal state, it means that there is a blockage in the lubrication pipeline, which will affect the lubrication effect of the equipment, prompting the distributor to be abnormal, stop the lubrication motor, and mark the abnormal state; if the distributor count is detected to be in a normal state, it is judged again whether the lubrication level is normal. By establishing a specific lubrication station state detection process, the safety detection logic of the can sealing machine can be optimized, and the operation stability of the can sealing machine can be ensured. In addition, the specific structure of the lubrication station refers to the Chinese patent application number CN202020457760.6 “Automatic lubrication structure of high-speed can sealing machine” and will not be described in detail.

[0041] Among them, the stop command of the lubrication motor can be triggered by a separate lubrication motor stop button, which can effectively ensure the operating stability of the entire lubrication system.

[0042] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A control method for a can sealing machine, characterized in that: The steps include: Step 1: After the equipment is powered on, the abnormal state detection process is automatically started; if there is an abnormal state, the specific abnormal information is fed back and the equipment state is marked as abnormal; if all states are normal, the equipment state is marked as normal and the start command of the lubrication motor is triggered; Step 2: When the start command of the lubrication motor is triggered, the state detection process of the lubrication station is started; if there is an abnormal state, the specific abnormal information is fed back and the equipment state is marked as abnormal; if all states are normal, the main motor is started and the equipment enters the production state; Step 3: After the equipment enters the production state, the detection switch on the can-shifting chain is used to determine whether there is a can on the can-shifting chain; if a can is detected on the can-shifting chain, the detection switch on the cover-shifting mechanism is used to determine whether the current cover-shifting mechanism is open; if the cover-shifting mechanism is in the open state, the cover-shifting mechanism does not take any action and continues to remain in the open state; if the cover-shifting mechanism is in the closed state, the cover-shifting mechanism is opened; if no can is detected on the can-shifting chain, the detection switch on the cover-shifting mechanism is used to determine whether the current cover-shifting mechanism is open: if the cover-shifting mechanism is in the closed state, no action is taken; if the cover-shifting mechanism is in the open state, the cover-shifting mechanism is closed and the cover-shifting mechanism does not perform the cover-shifting action; Step 4: The lid separated by the lid separation mechanism is transferred to the can feeding star wheel, and then the lid lowering detection switch is used to determine whether there is a lid at the lid feeding position of the can feeding star wheel, and the lid feeding position corresponds to the can position on the can shifting chain; if a lid signal is detected at the lid feeding position of the can feeding star wheel, the next step is entered; if no lid signal is detected at the lid feeding position of the can feeding star wheel, it indicates that the lid separation mechanism is in an abnormal state, and a lid lowering reminder message is fed back, and the main motor is stopped; Step 5: When the lid on the can-feeding star wheel is directly above the can on the can-moving chain, the lid on the can-feeding star wheel is pressed onto the corresponding can on the can-moving chain by the capping head, and then the can with the lid is transferred to the central star wheel by the can-feeding star wheel, and then the can with the lid on the central star wheel is double-sealed by the sealing roller; Step 6: The cans after rolling and sealing are transferred from the central star wheel to the can discharge star wheel, and the can discharge detection switch is used to determine whether the corresponding can is discharged from the corresponding station of the can discharge star wheel; if there is a can feeding action but no can discharge is detected, a can jam alarm prompt is issued and the main motor is stopped; if a can is detected to be discharged, the can liquid level detection and can internal pressure detection are carried out in turn; if the can liquid level detection or can internal pressure detection fails, the abnormal can is rejected; if the can liquid level detection and can internal pressure detection are both qualified, the can is sent out of the can sealing machine and enters the subsequent process; Step 7: Repeat steps 1 to 6 to achieve fully automated operation of the can sealing machine.

2. A control method for a can sealing machine according to claim 1, characterized in that: When the equipment needs to stop, the stop button is triggered, and the can-moving chain performs a can-stopping action to stop the cans from entering.

3. A control method for a can sealing machine according to claim 2, characterized in that: When the stop button is triggered, it is determined whether there are any cans inside the equipment that have not been discharged. If there are cans inside the equipment that have not been discharged, normal production actions are performed according to steps 1 to 6; if all the cans inside the equipment have been discharged, the main motor is powered off and stopped.

4. A control method for a can sealing machine according to claim 2 or 3, characterized in that: When the equipment needs to be stopped urgently, the emergency stop button is triggered, the abnormal status alarm of the equipment in step 1 is executed, and the main motor stops immediately.

5. A control method for a can sealing machine according to claim 4, characterized in that: The abnormal state detection process in step 1 includes: Determine whether the safety door is open; if the safety door is detected to be open, feedback that the safety door is abnormal and mark the status abnormal; if the safety door is detected not to be open, determine whether the transmission handwheel is disengaged; if the transmission handwheel is detected not to be disengaged, feedback that the handwheel is abnormal and mark the status abnormal; if the transmission handwheel is detected to be disengaged, determine whether the emergency stop button is triggered; if the emergency stop button is detected to be in the triggered state, feedback that the emergency stop is abnormal and mark the status abnormal; if the emergency stop button is detected to be in the untriggered state, determine whether the can throwing is triggered; if the can throwing is detected to be triggered, feedback that the can throwing is abnormal and mark the status abnormal; if the can throwing is detected not to be triggered, determine whether the lubrication abnormality is triggered; if the lubrication abnormality is detected to be triggered, feedback that the lubrication abnormality is abnormal and mark the status abnormal; if the lubrication abnormality is detected not to be triggered, mark the equipment status as normal.

6. A control method for a can sealing machine according to claim 5, characterized in that: The state detection process of the lubrication station in step 2 includes: Determine whether the lubrication level is normal; if the lubrication level is detected to be in an abnormal state, the abnormal level is fed back, the lubrication motor cannot be started, and the abnormal state is marked; if the lubrication level is detected to be in a normal state, determine whether the lubrication motor is started; if the lubrication motor is detected to be not started, start the lubrication motor; if the lubrication motor is detected to be started, determine whether the oil pressure is normal; if the oil pressure is detected to be in an abnormal state, the oil pressure abnormality is fed back, the lubrication motor is stopped, and the abnormal state is marked; if the oil pressure is detected to be in a normal state, the lubricating oil is transported to the distributor through the pipeline, and it is determined whether the distributor count is normal; if the distributor count is detected to be in an abnormal state, the distributor is prompted to be abnormal, the lubrication motor is stopped, and the abnormal state is marked; if the distributor count is detected to be in a normal state, it is determined again whether the lubrication level is normal.

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