One-tank and one-cover control method

Abstract

The invention discloses a one-can one-cover control method, and relates to the technical field of can sealing machine mechanical equipment. The can sealing machine comprises a can inlet conveying mechanism, a can inlet star wheel, a transition star wheel and a can outlet star wheel which are arranged in sequence. A can shifting chain for driving cans to move on the can feeding conveying mechanism and a can feeding detection switch are arranged on the can feeding conveying mechanism; and a cover cutting device is arranged on one side of the can feeding star wheel. By adding judgment on the state of the cover separating device in control logic, the action times of a control element and an execution element are reduced during continuous operation, and the service life of components is greatly prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of can seaming machine mechanical equipment, and particularly relates to a one-can-one-lid control method. Background Art

[0002] Currently, the control of the can lid separating device used in China mainly adopts installing a detection photoelectric on the can conveying line. When a can passes by, the detection photoelectric outputs a signal to control the lid-stopping cylinder to open and supply lids. Since the output signal and lid supply cannot be synchronized in time, generally, a time delay needs to be added in the electrical design to ensure synchronization. The defect is that it is very difficult to set the lid time delay, and continuous attempts are required to meet the requirements. Moreover, the finally set time delay is for the can conveying line with normal production output. Once the operation speed is low, the lid supply will be advanced, and the subsequent can seaming effect cannot be ensured. For low-speed can seaming machines, since the difference between low speed and normal production is not significant, the original control basically meets the requirements.

[0003] As cans become more and more popular, more manufacturers need high-speed can seaming machines. A reliable one-can-one-lid control mechanism is one of the key technologies for designing high-speed can seaming machines. Therefore, we improved the original one-can-one-lid control mechanism, and after trial use, it met the production requirements of one-can-one-lid at low and high speeds.

[0004] Patent CN215853461U details an execution method of a one-can-one-lid mechanical control mechanism. However, the existing control logic (as shown in the attached Figure 2 ) determines whether there is a can at the station through the incoming can detection switch. When there is a can, it controls the lid cutting device to open, and vice versa, controls the lid cutting device to close;

[0005] During continuous can feeding, the control components and the execution components will be quickly damaged due to overly frequent actions and cannot supply lids normally. Summary of the Invention

[0006] The purpose of the present invention is to provide a one-can-one-lid control method. By adding the judgment of the state of the lid separating device in the control logic, the action times of the control components and the execution components are reduced during continuous operation, greatly improving the service life of the components, and solving the problem that the existing control components and the execution components are quickly damaged due to overly frequent actions.

[0007] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0008] The present invention is a one-can-one-lid control method, including:

[0009] Step 1: Determine whether there is a can at the station through the incoming can detection switch; if yes, enter Step 2, otherwise enter Step 4;

[0010] Step 2: Determine whether the state of the lid cutting device is in the open state. If the lid cutting device is in the closed state, proceed to Step 3; otherwise, do not perform any action and continue to keep the lid cutting device in the open state.

[0011] Step 3: Open the lid cutting device and proceed to the subsequent seaming operation.

[0012] Step 4: Determine whether the state of the lid cutting device is in the open state. If the lid cutting device is in the open state, do not perform any action; otherwise, proceed to Step 5.

[0013] Step 5: Close the lid cutting device and do not perform the lid cutting action at this station.

[0014] A can seaming machine includes a can inlet conveying mechanism, an inlet can star wheel, a transition star wheel, and an outlet can star wheel arranged in sequence; a can shifting chain for driving the can to move on the can inlet conveying mechanism and a can inlet detection switch are arranged on the can inlet conveying mechanism; a lid cutting device is arranged on one side of the inlet can star wheel.

[0015] Further, a plurality of seaming components and capping mechanisms are arranged on the periphery of the transition star wheel and are in one-to-one cooperation with the stations on the transition star wheel. Each seaming component has two seaming rollers respectively located on both sides of any station.

[0016] Further, the working process of the can seaming machine includes:

[0017] Step 1: The can with the filling enters the can seaming machine through the can shifting chain.

[0018] Step 2: When a can enters the can inlet conveying mechanism, the can inlet detection switch detects the corresponding station signal and controls the lid cutting device to perform the lid separating action at the corresponding station.

[0019] Step 3: Under the action of the can shifting chain, the can further moves to the transition star wheel of the can seaming machine; simultaneously, under the action of the inlet can star wheel, the lid synchronously moves to the top of the can.

[0020] Step 4: Perform a double seaming operation on the can and the lid under the cooperation of the capping mechanism and the seaming components.

[0021] Step 5: The seamed can is transferred to the can star wheel under the action of the star wheel guard plate.

[0022] Step 6: The sealed can is sent out of the can seaming machine through the outlet can star wheel and enters the subsequent process.

[0023] Further, an outlet can conveying mechanism is also arranged at the discharge end of the outlet can star wheel, and a detection switch is arranged on the outlet can conveying mechanism.

[0024] The present invention has the following beneficial effects:

[0025] The present invention reduces the number of operations of control components and actuators during continuous operation by adding a judgment on the state of the lid separating device in the control logic.

[0026] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 is a schematic structural diagram of the can seaming machine of the present invention;

[0029] Figure 2 is a schematic diagram of the control logic of the lid separating device in the background art;

[0030] Figure 3 is a control diagram of the lid separating device in the background art;

[0031] Figure 4 is a schematic diagram of the control logic of the lid separating device of the present invention;

[0032] Figure 5 is a control diagram of the lid separating device of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] Please refer to Figure 1 and 4 -5 as shown, the present invention is a one-can-one-lid control method, including:

[0036] Step 1. Determine whether there is a can at the station through the in-tank detection switch 12; if yes, go to Step 2, otherwise go to Step 4;

[0037] Step 2. Determine whether the state of the lid cutting device 20 is in the open state. If the lid cutting device 20 is in the closed state, go to Step 3; otherwise, do not perform any action and continue to keep the lid cutting device 20 in the open state;

[0038] Step 3. Open the lid cutting device 20 and enter the subsequent seaming operation;

[0039] Step 4. Determine whether the state of the lid cutting device 20 is in the open state; if the lid cutting device 20 is in the open state, do not perform any action, otherwise go to Step 5;

[0040] Step 5. Close the lid cutting device 20, and no lid cutting action is performed at this station.

[0041] Such as Figure 1 , a can seamer, including an in-tank conveying mechanism 1, an in-tank star wheel 2, a transition star wheel 3, and an out-tank star wheel 4 arranged in sequence; a can-pushing chain 11 for driving the can to move on the in-tank conveying mechanism 1 and an in-tank detection switch 12 are arranged on the in-tank conveying mechanism 1; a lid cutting device 20 is arranged on one side of the in-tank star wheel 2; and a number of seaming assemblies 5 and capping mechanisms 31 that cooperate with the workstations on the transition star wheel 3 one by one are arranged on the periphery of the transition star wheel 3. The seaming assembly 5 has two seaming rollers 51 located on both sides of any workstation respectively.

[0042] The working process of the can seamer includes:

[0043] Step 1. The can with the filling enters the can seamer through the can-pushing chain 11.

[0044] Step 2. When a can enters the in-tank conveying mechanism 1, the in-tank detection switch 12 detects the corresponding workstation signal and controls the lid cutting device 20 to perform the lid separating action at the corresponding workstation.

[0045] Step 3. Under the action of the can-pushing chain 11, the can further moves to the transition star wheel 3 of the can seamer; simultaneously, under the action of the in-tank star wheel 2, the lid synchronously moves to the top of the can;

[0046] Step 4. Perform a double seaming action on the can and the lid under the cooperation of the capping mechanism 31 and the seaming assembly 5;

[0047] Step 5. The seamed can is transferred to the out-tank star wheel 4 under the action of the star wheel guard plate;

[0048] Step 6. The sealed can is sent out of the can seamer through the out-tank star wheel 4 and enters the subsequent process.

[0049] The discharging end of the discharging star wheel 4 is further provided with a discharging conveying mechanism 41, and a detection switch 42 is arranged on the discharging conveying mechanism 41.

[0050] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A one-can-one-lid control method, characterized in that: include: Step 1: Determine whether there is a can at the workstation by using the can inlet detection switch (12); if yes, proceed to step 2; otherwise, proceed to step 4; Step 2, determining whether the state of the cover cutting device (20) is in the open state, if the cover cutting device (20) is in the closed state, proceeding to step 3; otherwise, no action is taken, and the cover cutting device (20) continues to be in the open state; Step 3, opening the cap cutting device (20) and entering the subsequent sealing action; Step 4, determining whether the state of the cover cutting device (20) is in the open state; if the cover cutting device (20) is in the open state, no action is taken, otherwise, proceed to step 5; Step 5: close the cap cutting device (20), and the cap cutting action is not performed at this station.

2. A can sealing machine using the one-can-one-cover control method as claimed in claim 1, characterized in that: It comprises a can-infeeding conveying mechanism (1), a can-infeeding star wheel (2), a transition star wheel (3) and a can-outfeeding star wheel (4) which are arranged in sequence; The can feeding conveying mechanism (1) is provided with a can moving chain (11) for driving the cans to move on the can feeding conveying mechanism (1), and a can feeding detection switch (12); A cap cutting device (20) is provided on one side of the can feeding star wheel (2).

3. The can sealing machine according to claim 2, characterized in that: A plurality of sealing assemblies (5) and capping mechanisms (31) are arranged on the circumferential side of the transition star wheel (3) and are matched one by one with the workstations on the transition star wheel (3). The sealing assembly (5) has two sealing rollers (51) respectively located on both sides of any workstation.

4. The can sealing machine according to claim 3, characterized in that: The can sealing machine workflow includes: Step 1: Cans with fillings enter the canning machine through a canning chain (11). Step 2: When a can enters the can feeding conveying mechanism (1), the can feeding detection switch (12) detects a corresponding station signal and controls the cap cutting device (20) to perform a capping action at the corresponding station. Step 3: Under the action of the canning chain (11), the can is further moved to the transition star wheel (3) of the can sealing machine; synchronously under the action of the can feeding star wheel (2), the lid is synchronously moved to the top of the can; Step 4: performing a double sealing action on the can and the lid under the cooperation of the capping mechanism (31) and the sealing assembly (5); Step 5: The sealed cans are transferred to the can star wheel (4) under the action of the star wheel guard plate; Step 6: The sealed cans are sent out of the can sealing machine through the can discharge star wheel (4) and enter the subsequent process.

5. The can sealing machine according to claim 2, characterized in that: A can discharging conveying mechanism (41) is also provided at the discharging end of the can discharging star wheel (4), and a detection switch (42) is provided on the can discharging conveying mechanism (41).

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