System for reducing defect rate of small box code spraying of packaging machine

Abstract

The application discloses a system for reducing the defect rate of small box code spraying of a packaging machine, comprising a code spraying trigger unit, a code spraying transmission assembly, a fault trigger unit and a counting early warning unit. The code spraying trigger unit is based on phase information calculated by a packaging machine encoder, so that the packaging machine gives a trigger signal to a code spraying machine at a set phase. The code spraying transmission assembly is based on coaxial transmission to avoid the elastic sliding and skidding of a code spraying encoder. The fault trigger unit is based on the communication association between a packaging machine main control board and a code spraying fault relay, so that the packaging machine can immediately respond to the fault alarm of the code spraying machine. The counting early warning unit is based on the pushing of alarm information to a maintenance management platform, so that maintenance personnel and managers can be informed to pay attention, and the maintenance personnel and managers can know the running condition of the code spraying machine in real time. The packaging machine small box code spraying defect rate is fundamentally reduced through the above modification.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cigarette equipment, in particular to a system for reducing the defect rate of code spraying of a cigarette packaging machine. BACKGROUND

[0002] In recent years, the cigarette factory has developed rapidly, and lotus cigarette is the top priority. The current production brand "diamond (soft lotus)" is the key guarantee brand, which has high process requirements. The ink code spraying technology is used to print the product number, which not only improves the product popularity, but also plays a role in identification and anti-counterfeiting.

[0003] However, the code spraying technology is less used in the cigarette industry, and there are some imperfections in actual production. Specifically:

[0004] 1. Unstable code spraying trigger leads to: code spraying trigger position offset, repeated trigger, no trigger, etc.

[0005] 2. Unstable code spraying machine encoder synchronization mode leads to: unstable code spraying character width, unstable code spraying character spacing, etc.

[0006] 3. Weak code spraying machine fault alarm leads to: the packaging machine continues to run after the code spraying machine fails, and the operator cannot get the fault alarm information in time, resulting in a large number of codeless defective cigarette packages.

[0007] According to the investigation of the above problems, it is found that:

[0008] 1. The current code spraying trigger mode is an optical fiber amplifier or other type of detection trigger. The trigger is unstable, and the trigger position is affected by detection sensitivity, material quality, environmental factors, and personnel debugging level, which greatly affects the final trigger position, leading to unstable trigger position and early or lagging phenomenon.

[0009] 2. The current code spraying machine encoder synchronization mode is a friction transmission mode. For example, the common rubber-steel friction transmission will produce elastic sliding phenomenon during transmission, leading to relative displacement between the driving wheel and the driven wheel. Elastic sliding is inevitable, leading to unstable code spraying characters or character spacing.

[0010] 3. The current code spraying machine fault prompt is weak. The current fault prompt method is roughly divided into three types: no special prompt (the code spraying machine panel has a prompt light), this prompt method has almost zero effect, and the operator cannot monitor and check in real time during work; sound alarm, suitable for quiet production environment, can avoid a large number of defective products, but still cannot avoid a small amount of defective products; sound and light alarm, sound alarm with alarm light flashing, can improve the prompt in noisy environment, but still cannot achieve 100% block of defective products.

[0011] In order to guarantee the normal use of the code spraying machine of the packaging unit and the product quality, it is urgent to invent a system and method for reducing the code spraying defect rate of the small box of the packaging machine to solve the above three main problems: stable trigger position, stable encoder transmission and strong fault prompt of the code spraying machine to meet the daily production needs. SUMMARY

[0012] In order to overcome the above problems, the present application provides a system for reducing the code spraying defect rate of the small box of the packaging machine. The system is based on the GD packaging machine program, adopts a program phase trigger mode, has a code spraying machine fault shutdown function, solves the elastic sliding phenomenon in the encoder transmission mode, and finally realizes the reduction of the code spraying defect rate of the small box of the packaging machine.

[0013] The technical scheme adopted by the present application to solve its technical problems is:

[0014] A system for reducing the code spraying defect rate of the small box of the packaging machine, comprising

[0015] A code spraying trigger unit, a code spraying transmission assembly, a fault trigger unit and a counting early warning unit.

[0016] The code spraying trigger unit comprises a packaging machine output board and a code spraying machine control board.

[0017] The packaging machine output board is provided with a spare point position, so that it provides a high level output signal every time it passes through the same phase. The spare point position is connected to the trigger point position of the code spraying machine control board to synchronously communicate the output signal to the code spraying machine control board and trigger the code spraying action.

[0018] Preferably, the trigger phase angle of the spare point position is 205°.

[0019] Preferably, the packaging machine output board detects the level signal of the spare point position every time it passes through the same cycle. When the spare point position fails, the packaging machine stops and displays.

[0020] The code spraying transmission assembly comprises a transparent paper paper guide roller and a code spraying encoder coaxially transmitted.

[0021] The code spraying encoder is fixed on the locomotive at a proper position through a coaxial fixing frame, so that the code spraying encoder is coaxially connected with the transparent paper paper guide roller. The coaxial fixing frame comprises a main fixing frame fixed on the locomotive and a movable adjusting fixing frame facilitating the adjustment of the position of the code spraying encoder.

[0022] Preferably, the main fixing frame is arranged in parallel with the axis of the transparent paper paper guide roller.

[0023] Preferably, the movable adjusting fixing frame is an L-shaped fixing plate fixed on the main fixing frame and the bottom plate of the code printing encoder through threaded connection structures at two ends.

[0024] Preferably, a long waist-shaped hole is formed in the movable adjusting fixing frame.

[0025] The fault triggering unit comprises a packaging machine input board and a code printing fault relay in communication connection with a code printing machine control board.

[0026] The normally open output point of the code printing machine control board is in communication connection with the code printing fault relay and the input point of the packaging machine input board, and the power supply access point of the packaging machine input board is connected to the common point of the packaging machine input board through a cable to form a closed control loop.

[0027] Preferably, when the code printing fault relay acts, the normally open output point of the code printing machine control board is closed and always in a high level state until the fault is eliminated.

[0028] Preferably, the packaging machine output board and the packaging machine input board are both components of the packaging machine main control board group, and the packaging machine main control board group is a GD-INPUT / OUTPUT input / output board.

[0029] The counting early warning unit comprises a data acquisition module, a data analysis module and an information pushing module.

[0030] The data acquisition module is used for acquiring the code printing times, the small box production quantity and the code printing machine fault times.

[0031] The data analysis module is used for judging the code printing early warning information, and generates early warning information when the code printing times are less than the small box production quantity or the code printing machine fault times are greater than a set threshold.

[0032] The information pushing module is used for receiving the early warning information and pushing it to relevant personnel through a management platform.

[0033] The present application has the following beneficial effects:

[0034] 1. Based on the code printing triggering unit, the phase information calculated by the packaging machine encoder is used to give a code printing machine triggering signal to the packaging machine at a set phase (adjustable), the instability of the original sensor triggering mode is abandoned, and the phenomena of code printing triggering position deviation, repeated triggering, no triggering and the like caused by factors such as environment, material, sensor fault, human debugging experience and the like are avoided.

[0035] 2. Based on the code transmission assembly, the original transmission mode is changed, the coaxial transmission can well avoid the elastic sliding and the skidding phenomenon, and has the advantages of constant instantaneous transmission ratio, good stability, stable and reliable transmission, high transmission efficiency and the like. At the same time, with the help of the adjustable fixing frame, the production operation space is not occupied too much, and the influence of the equipment modification on the original equipment is small.

[0036] 3. Based on the fault triggering unit, the packaging machine main control board is communicated and associated with the code fault relay, so that it responds to the code machine fault alarm, triggers the packaging machine to stop at the moment of the code machine fault, has the advantages of strong operator prompting and strong unqualified product blocking.

[0037] 4. Based on the counting early warning unit, the alarm information is pushed to the maintenance management platform, and the maintenance personnel and the management personnel are informed to pay attention, so that the maintenance personnel and the management personnel can know the running condition of the code machine in real time, an information channel (code machine-packaging machine-management platform) from the code machine to the packaging machine to the management personnel is established, which is first created in the industry, and fills the blank of the code machine data acquisition function in the cigarette industry.

[0038] The packaging machine small box code defect rate is fundamentally reduced through the above modification. BRIEF DESCRIPTION OF DRAWINGS

[0039] The application will be further described below in combination with the drawings and specific embodiments:

[0040] Figure 1 It is a system block diagram of the application;

[0041] Figure 2 It is a communication structure schematic diagram of the code triggering unit and the fault triggering unit of the application;

[0042] Figure 3 It is a control flow chart of the code triggering unit of the application;

[0043] Figure 4 It is a control flow chart of the fault triggering unit of the application;

[0044] Figures 5~6 It is a transmission structure schematic diagram of the code transmission assembly of the application;

[0045] Figure 7 It is a control flow chart of the counting early warning unit of the application. DETAILED DESCRIPTION

[0046] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0047] With reference to Figure 1 The embodiment is a system for reducing the defect rate of small box code spraying of a packaging machine, comprising

[0048] a code spraying trigger unit, a code spraying transmission assembly, a fault trigger unit, and a counting early warning unit.

[0049] First, in order to improve the unstable code spraying trigger problem of the small box code spraying assembly of the packaging machine in actual operation, the embodiment carries out electrical modification and programming of the code spraying trigger mode. With reference to Figure 2 , Figure 3 The code spraying trigger unit comprises a packaging machine output board and a code spraying machine control board. A spare point provided by the packaging machine output board provides a 24V high-level output signal every time it passes through the same phase, and the spare point is connected to the trigger point of the code spraying machine control board to synchronously communicate the output signal to the code spraying machine control board and trigger the code spraying action.

[0050] The embodiment needs to remove the code spraying trigger sensor of the code spraying machine to prevent false triggering. This completes the electrical modification of the code spraying trigger mode from "sensor trigger" to "packaging machine phase trigger", which can avoid the influence of sensor debugging, damage, and material environment factors on code spraying.

[0051] The trigger mode has a self-diagnosis function, i.e., output board fault alarm. The packaging machine output board detects the level signal of the spare point every time it passes through the same cycle, and when the spare point fails, the packaging machine stops and displays.

[0052] In the embodiment, the trigger phase angle of the spare point is set to 205°.

[0053] Specific implementation steps are as follows:

[0054] (1) Cable laying is performed between the code spraying machine and the electrical cabinet of the packaging machine.

[0055] (2) The spare point of the packaging machine output board is installed by jumper.

[0056] (3) The output points N16-17 and 0V of the electrical cabinet of the packaging machine are connected to the code spraying machine control board by a cable, and the J4 plug of the code spraying machine control board is removed.

[0057] (4) Write GD program, realize phase trigger output 24V DC voltage.

[0058] (5) Realize the phase trigger of the small box code spraying of the packaging machine.

[0059] Secondly, in order to solve the problem of elastic sliding and slipping caused by unstable synchronization of the encoder of the code spraying machine, and the problem of unstable code spraying, the code spraying assembly is improved in the embodiment. The code spraying transmission assembly includes a coaxial transmission transparent paper guide roller 11 and a code spraying encoder 12. The code spraying encoder 12 is fixed to a proper position of the locomotive through a coaxial fixing frame, so that the code spraying encoder 12 is coaxially connected with the transparent paper guide roller 11.

[0060] Referring to Figure 5 , Figure 6 , the coaxial fixing frame includes a main fixing frame 13 fixed to the locomotive and a movable adjusting fixing frame 14 for adjusting the position of the code spraying encoder. The main fixing frame 13 is arranged in parallel with the axis of the transparent paper guide roller 11. The movable adjusting fixing frame 14 is an L-shaped fixing plate, which is fixed to the main fixing frame 13 and the bottom plate of the code spraying encoder 12 through thread connection structures at both ends.

[0061] The embodiment abandons the original friction synchronization mode, and the code spraying assembly is coaxially transmitted. The coaxial transmission has the advantages of constant instantaneous transmission ratio, good stability, stable and reliable transmission, high transmission efficiency, etc. It has been proved that the coaxial transmission mode can effectively improve the unstable transmission of the code spraying encoder 12, thereby avoiding the unstable situation of small box code characters and character spacing.

[0062] In order to not occupy too much production operation space and ensure that the equipment modification has little effect on the original equipment, a long waist type hole is formed on the movable adjusting fixing frame 14, which is beneficial to the debugging and installation position and ensures stable operation.

[0063] Furthermore, in order to prevent the situation that the packaging machine continues to run while the code spraying machine fails, fundamentally eliminate the defect of “no code spraying”, and solve the problem of weak fault prompt of the code spraying machine, the embodiment sets a fault triggering unit. After the input board of the packaging machine receives a fault signal, the packaging machine is immediately sent a stop command through program logic judgment, and the packaging machine cannot be reset before the fault is eliminated.

[0064] Referring to Figure 2 , Figure 4 , the fault triggering unit includes a packaging machine input board and a code spraying fault relay in communication connection with a code spraying machine control board. The normally open output point of the code spraying machine control board is in communication connection with the code spraying fault relay, and is also in communication connection with the input point of the packaging machine input board. The power supply access point of the packaging machine input board is connected to the common point of the packaging machine input board through a cable, so as to form a closed control loop.

[0065] When the code spraying fault relay acts, the normally open output point of the code spraying machine control board is closed and always in a high level state until the fault is eliminated, that is, the packaging machine cannot be reset before the fault is eliminated.

[0066] The embodiment realizes linkage of the code spraying machine fault signal relay and the packaging machine control board, and specific implementation steps are as follows:

[0067] (1) Cable laying is performed between the code spraying machine and the packaging machine electrical cabinet.

[0068] (2) The jumper installation is performed on the packaging machine input board point.

[0069] (3) The cable is used to connect the packaging machine electrical cabinet input points N14-19 and 24V to the code spraying machine control board.

[0070] (4) The GD program is written to realize the fault shutdown logic judgment function.

[0071] (5) The packaging machine small box code spraying fault shutdown is realized.

[0072] In the embodiment, the packaging machine output board and the packaging machine input board are both components of the packaging machine main control board group, and the packaging machine main control board group is a GD-INPUT / OUTPUT input / output board.

[0073] In addition, in order to solve the blank of the code spraying machine data acquisition function in the cigarette industry, the system further includes a counting early warning unit.

[0074] With reference to Figure 7 , the counting early warning unit includes a data acquisition module, a data analysis module and an information pushing module.

[0075] The data acquisition module is used to acquire the code spraying frequency, the small box production quantity and the code spraying machine fault frequency.

[0076] The data analysis module is used to determine the code spraying early warning information, and when the code spraying frequency is less than the small box production quantity, or the code spraying machine fault frequency is greater than a set threshold value (number 3), the data analysis module generates early warning information.

[0077] The information pushing module is used to receive the early warning information and push it to relevant personnel through a management platform, so as to notify maintenance personnel and management personnel to pay attention, so that the maintenance personnel and the management personnel can know the running condition of the code spraying machine in real time.

[0078] The embodiment has been used on all packaging machines with code spraying function in the cigarette wrapping workshop.

[0079] The use effect is good after verification, the code spraying position is stable, the characters and the character spacing are stable, the code spraying machine fault shutdown rate is 100%, and the no-code defect cigarette package can be effectively eliminated.

[0080] It should be noted that the above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A system for reducing the defect rate of a carton printing machine, characterized in that: The system comprises a code spraying trigger unit, a code spraying transmission assembly, a fault trigger unit, and a counting early warning unit; the code spraying trigger unit comprises a packaging machine output board and a code spraying control board; the packaging machine output board is provided with a spare point position, which provides a high-level output signal every time it passes through the same phase, and the spare point position is connected to the trigger point position of the code spraying control board to synchronously communicate the output signal to the code spraying control board and trigger the code spraying action; the packaging machine output board detects the level signal of the spare point position every time it passes through the same cycle, and when the spare point position fails, the packaging machine stops and displays; the code spraying transmission assembly comprises a transparent paper guide roller coaxially driven and a code spraying encoder; the code spraying encoder is fixed on the locomotive at a proper position through a coaxial fixing frame, so that the code spraying encoder is coaxially connected with the transparent paper guide roller, and the coaxial fixing frame comprises a main fixing frame fixed on the locomotive and a movable adjusting fixing frame facilitating the adjustment of the position of the code spraying encoder; the main fixing frame is arranged in parallel with the axis of the transparent paper guide roller; the fault trigger unit comprises a packaging machine input board and a code spraying fault relay in communication connection with the code spraying control board; the normally open output point of the code spraying control board is in communication connection with the code spraying fault relay and the input point of the packaging machine input board, and the power supply access point of the packaging machine input board is connected to the common point of the packaging machine input board through a cable to form a closed control loop; when the code spraying fault relay acts, the normally open output point of the code spraying control board is closed and always in a high-level state until the fault is eliminated; the counting early warning unit comprises a data acquisition module, a data analysis module, and an information pushing module; the data acquisition module is used for acquiring the code spraying frequency, the small box production quantity, and the code spraying machine fault frequency; the data analysis module is used for determining the code spraying early warning information, and generates early warning information when the code spraying frequency is less than the small box production quantity or the code spraying machine fault frequency is greater than a set threshold value; the information pushing module is used for receiving the early warning information and pushing it to relevant personnel through a management platform.

2. The system for reducing the defect rate of small box code spraying of a packaging machine according to claim 1, wherein: the movable adjusting fixing frame is an L-shaped fixing plate, which is fixed on the main fixing frame and the bottom plate of the code spraying encoder through thread connection structures at two ends.

3. The system for reducing the defect rate of small box code spraying of a packaging machine according to claim 1, wherein: a long waist-shaped hole is formed in the movable adjusting fixing frame.

4. The system for reducing the defect rate of small box code spraying of a packaging machine according to claim 1, wherein: the packaging machine output board and the packaging machine input board are both components of a packaging machine main control board group, and the packaging machine main control board group is a GD-INPUT / OUTPUT input / output board.

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