A method and system for improving the operating efficiency of a packaging unit

Abstract

The present invention discloses a method for improving the operating efficiency of a packaging unit, wherein the packaging unit includes a main machine, an auxiliary machine, and a cigarette packet transmission channel arranged between the main machine and the auxiliary machine, and the method includes: detecting whether the auxiliary machine is shut down, and when the auxiliary machine is shut down, generating and outputting a shutdown signal; detecting whether there is a cigarette packet in the cigarette packet transmission channel, and if so, generating and outputting a confirmation signal; receiving the shutdown signal and the confirmation signal, and removing the cigarette packets on the cigarette packet transmission channel. The present invention can enable the main machine to operate normally when the auxiliary machine is shut down, reduce the number of shutdowns of the packaging unit, and improve the operating efficiency of the packaging unit. The present invention also provides a system for improving the operating efficiency of a packaging unit.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco production, and in particular to a method and a system for improving the operating efficiency of a packaging unit. Background Art

[0002] In cigarette manufacturing, there has long been a phenomenon in equipment technology whereby unnecessary shutdowns of production equipment occur due to unscientific connections between many links, resulting in reduced equipment utilization efficiency and inability to fully utilize equipment production capacity.

[0003] Take the cigarette packaging unit as an example. The cigarette packaging unit is divided into a main machine and an auxiliary machine. The small cigarette packs produced by the main machine are transported to the auxiliary machine through the cigarette pack transmission channel for strip box packaging. When the existing packaging machine is in operation, if the auxiliary machine changes auxiliary materials or stops due to a fault, the cigarette packs will repeatedly collide and accumulate on the cigarette pack transmission channel. When the accumulation length touches the main channel blockage detection device on the cigarette pack transmission channel (set on the cigarette pack transmission channel close to the main machine end, used to detect whether the cigarette packs block the main machine), it will cause the main machine to stop. This mode of operation has certain disadvantages, such as:

[0004] 1) Cigarette packs are repeatedly impacted in the cigarette pack transmission channel, which may cause certain quality risks (shrinkage of cigarette heads, deformation of cigarette packs, etc.);

[0005] 2) When the auxiliary machine is shut down, the main machine will also shut down, resulting in too many shutdowns of the packaging unit, affecting the mechanical performance of the unit. In addition, if the main machine needs to be restarted after shutdown, it is necessary to wait until the auxiliary machine is started and the cigarette packs no longer block the main channel before the blockage detection device can be carried out, causing delays in production time, thereby affecting the effective operation efficiency of the packaging unit. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the shutdown of the auxiliary machine causes the shutdown of the main machine, thereby reducing the operating efficiency of the packaging unit. The present invention provides a method and system for improving the operating efficiency of the packaging unit, which can ensure that the main machine can still operate normally when the auxiliary machine is shut down, reduce the number of shutdowns of the packaging unit, and improve the operating efficiency of the packaging unit.

[0007] In order to solve the above technical problems, an embodiment of the present invention discloses a method for improving the operating efficiency of a packaging unit, wherein the packaging unit includes a main machine, an auxiliary machine, and a cigarette packet transmission channel arranged between the main machine and the auxiliary machine, and the method includes:

[0008] Detect whether the auxiliary machine is shut down. When the auxiliary machine is shut down, generate and output a shutdown signal;

[0009] Detecting whether there is a cigarette packet in the cigarette packet transmission channel, and if so, generating and outputting a confirmation signal;

[0010] Receive the stop signal and confirmation signal, and remove the cigarette packs on the cigarette pack transmission channel.

[0011] By adopting the above technical solution, when the auxiliary machine is detected to be shut down, the cigarette packs on the cigarette pack transmission channel are removed, and the cigarette packs will not block the main machine, so the main machine can still operate normally, reducing the number of shutdowns of the packaging unit and improving the operating efficiency of the packaging unit.

[0012] According to another specific embodiment of the present invention, detecting whether a cigarette packet exists in the cigarette packet transmission channel includes: detecting whether a cigarette packet exists in a first preset position on the cigarette packet transmission channel;

[0013] Removing cigarette packets on the cigarette packet transmission channel includes: removing detected cigarette packets on the cigarette packet transmission channel.

[0014] According to another specific embodiment of the present invention, after receiving the stop signal and the confirmation signal and before rejecting the detected cigarette pack, the method further includes:

[0015] Detecting the first time when the second preset position is blocked by the cigarette pack; wherein the second preset position is located between the first preset position and the auxiliary machine;

[0016] The first time is compared with a first threshold time, and if the first time exceeds the first threshold time, the detected cigarette pack is discarded.

[0017] According to another specific embodiment of the present invention, after receiving the stop signal and the confirmation signal, removing the detected cigarette packs on the cigarette pack transmission channel includes:

[0018] Detecting the first time when the second preset position is blocked by the cigarette pack; wherein the second preset position is located between the first preset position and the auxiliary machine;

[0019] After receiving the shutdown signal, the first time is compared with the first threshold time. If the first time exceeds the first threshold time, it is determined whether a confirmation signal is received. If a confirmation signal is received, the detected cigarette pack is discarded.

[0020] According to another specific embodiment of the present invention, the first threshold time is 400±10 ms.

[0021] According to another specific embodiment of the present invention, detecting whether there is a cigarette packet in the cigarette packet transmission channel includes:

[0022] Determine whether a stop signal is received. If a stop signal is received, detect whether there is a cigarette packet in the cigarette packet transmission channel.

[0023] According to another specific embodiment of the present invention, the duration for removing cigarette packets on the cigarette packet transmission channel is 40±2 ms.

[0024] The embodiment of the present invention further discloses a system for improving the operating efficiency of a packaging unit, wherein the packaging unit includes a main machine, an auxiliary machine, and a cigarette pack transmission channel connected between the main machine and the auxiliary machine, and the system includes:

[0025] The auxiliary machine shutdown detection module is connected to the auxiliary machine and is used to detect whether the auxiliary machine is shut down. When the auxiliary machine is shut down, a shutdown signal is generated and output;

[0026] A cigarette packet detection device, used to detect whether there is a cigarette packet in the cigarette packet transmission channel. If so, the cigarette packet detection device generates and outputs a confirmation signal;

[0027] Rejection device;

[0028] The controller is respectively connected to the auxiliary machine stop detection module, the cigarette pack detection device and the rejection device, and is used to control the rejection device to reject the cigarette packs on the cigarette pack transmission channel after receiving the stop signal and the confirmation signal.

[0029] By adopting the above technical solution, when the auxiliary machine shutdown detection module detects that the auxiliary machine is shut down, a shutdown signal is sent to the controller. At this time, if the cigarette pack detection device detects that there are cigarette packs on the cigarette pack transmission channel, the controller controls the rejection device to reject the cigarette packs on the cigarette pack transmission channel. Therefore, the cigarette packs on the cigarette pack transmission channel will not block the main machine, and the main machine can still operate normally, thereby reducing the number of shutdowns of the packaging unit and improving the operating efficiency of the packaging unit.

[0030] According to another specific embodiment of the present invention, the cigarette packet detection device is disposed at a first preset position on the cigarette packet transmission channel, and is used to detect whether there is a cigarette packet at the first preset position;

[0031] The rejecting device is arranged at the downstream side of the first preset position and adjacent to the cigarette pack detection device, and is used for rejecting the cigarette packs detected by the cigarette pack detection device on the cigarette pack transmission channel.

[0032] According to another specific embodiment of the present invention, the above system further includes:

[0033] A cigarette pack blocking timing device, connected to the controller, for detecting a first time when the second preset position is blocked by the cigarette pack, and outputting the first time to the controller, wherein the second preset position is located between the first preset position and the auxiliary machine;

[0034] The controller is also used to compare the first time with the first threshold time after receiving the shutdown signal and the confirmation signal. If the first time exceeds the first threshold time, the controller controls the rejection device to reject the detected cigarette package.

[0035] According to another specific embodiment of the present invention, the above system further includes:

[0036] A cigarette pack blocking timing device is connected to the controller and is used to detect the first time when the second preset position is blocked by the cigarette pack and output the first time to the controller, wherein the second preset position is located between the first preset position and the auxiliary machine;

[0037] The controller is also used to compare the first time with the first threshold time after receiving the shutdown signal. If the first time exceeds the first threshold time, the controller determines whether a confirmation signal is received. If a confirmation signal is received, the controller controls the rejection device to reject the detected cigarette pack.

[0038] According to another specific embodiment of the present invention, the first threshold time is 400±10 ms.

[0039] According to another specific embodiment of the present invention, the controller is also used to generate a detection signal after receiving the shutdown signal, and transmit the detection signal to the cigarette packet detection device to control the cigarette packet detection device to detect whether there is a cigarette packet on the cigarette packet transmission channel.

[0040] According to another specific embodiment of the present invention, the duration for the rejecting device to reject cigarette packets on the cigarette packet transmission channel is 40±2ms.

[0041] According to another specific embodiment of the present invention, the system further comprises a second timing module connected to the controller, and configured to record a second time of the auxiliary machine shutdown after the controller receives a shutdown signal, and output the second time to the controller;

[0042] The controller is also used to compare the second time with a second threshold time. If the second time exceeds the second threshold time, the controller controls the rejection device to stop rejecting the cigarette packs on the cigarette pack transmission channel.

[0043] According to another specific embodiment of the present invention, the rejecting device comprises:

[0044] Compressed air power source;

[0045] The solenoid valve is connected to the controller and the compressed air power source and is used to open or close the compressed air power source under the control of the controller;

[0046] The reject port is connected to the solenoid valve and is used for ejecting the gas output by the compressed air power source through the reject port when the solenoid valve is opened;

[0047] The cigarette pack collecting device is arranged on the side of the cigarette pack transmission channel opposite to the rejection port, and is used to collect the rejected cigarette packs.

[0048] According to a method and system for improving the operating efficiency of a packaging unit provided by the present invention, when the controller receives an auxiliary machine shutdown signal and detects that there are cigarette packs on the cigarette pack transmission channel, the controller controls the rejection device to reject the cigarette packs on the cigarette pack transmission channel to prevent quality risks caused by repeated accumulation and collision of cigarette packs on the cigarette pack transmission channel due to the shutdown of the auxiliary machine. Moreover, when the auxiliary machine is shut down, the main machine can still operate normally, thereby reducing the number of shutdowns of the packaging unit and improving the operating efficiency of the packaging unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A flow chart showing a method for improving the operating efficiency of a packaging unit provided by an embodiment of the present invention;

[0050] Figure 2 A schematic diagram showing the structure of a system for improving the operating efficiency of a packaging unit provided by an embodiment of the present invention Figure 1 ;

[0051] Figure 3 A schematic diagram showing the structure of a system for improving the operating efficiency of a packaging unit provided by an embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0052] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0053] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0054] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0055] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0056] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0057] like Figure 2 As shown, the packaging unit includes a main machine 201 , an auxiliary machine 202 , and a cigarette packet transmission channel 203 disposed between the main machine 201 and the auxiliary machine 202 , wherein the cigarette packet transmission channel 203 is used to transmit the cigarette packets from the main machine 201 to the auxiliary machine 202 .

[0058] Figure 1 A flow chart of a method for improving the operating efficiency of a packaging unit provided by an embodiment of the present invention. Specifically, the method for improving the operating efficiency of a packaging unit comprises the following steps:

[0059] Step S101, detecting whether the auxiliary machine 202 is shut down, and when the auxiliary machine 202 is shut down, generating and outputting a shutdown signal;

[0060] Step S103, detecting whether there is a cigarette packet on the cigarette packet transmission channel, and if so, generating and outputting a confirmation signal;

[0061] Step S104, receiving the stop signal and the confirmation signal, and removing the cigarette packs on the cigarette pack transmission channel 203.

[0062] Based on the method for improving the operating efficiency of the packaging unit provided by the present invention, by respectively detecting whether the auxiliary machine 202 is shut down and whether there are cigarette packs on the cigarette pack transmission channel 203, when the above two conditions are met at the same time, the cigarette packs on the cigarette pack transmission channel 203 are removed (that is, when the auxiliary machine 202 is shut down, a shutdown signal is sent, and when there are cigarette packs on the cigarette pack transmission channel 203, a confirmation signal is sent, and after receiving the shutdown signal and the confirmation signal, the cigarette packs on the cigarette pack transmission channel 203 are removed). Therefore, when the auxiliary machine 202 is shut down and the main machine 201 and the cigarette pack transmission channel 203 are still running, the cigarette packs on the cigarette pack transmission channel 203 can be removed, so that the cigarette packs on the cigarette pack transmission channel 203 will not block the main machine 201, and the main machine 201 will not stop running, thereby reducing the number of shutdowns of the packaging unit, improving the operating efficiency of the packaging unit, and avoiding a series of quality problems caused by unstable operation at the moment of starting the cigarette machine.

[0063] It is worth noting that in the present invention, there is no requirement for the execution order of step S101 and step S103. Step S101 can be executed first, and then step S103 (that is, first detect whether the auxiliary machine 202 is shut down, and when the auxiliary machine 202 is shut down, then detect whether there is a cigarette pack on the cigarette pack transmission channel 203); step S103 can also be executed first, and then step S101 (that is, first detect whether there is a cigarette pack on the cigarette pack transmission channel 203, and if there is a cigarette pack, then detect whether the auxiliary machine 202 is shut down); or step S101 and step S103 can also be executed at the same time (that is, simultaneously detect whether there is a cigarette pack on the cigarette pack transmission channel 203 and detect whether the auxiliary machine 202 is shut down).

[0064] Specifically, in step S103, the detection of whether there is a cigarette pack on the cigarette pack transmission channel 203 can be performed during the operation of the packaging unit, or after receiving the shutdown signal, a detection signal can be sent to detect whether there is a cigarette pack on the cigarette pack transmission channel 203. Exemplarily, for the latter, the detection of whether there is a cigarette pack on the cigarette pack transmission channel 203 includes first determining whether a shutdown signal is received, and if a shutdown signal is received, detecting whether there is a cigarette pack on the cigarette pack transmission channel 203. Specifically, when the auxiliary machine 202 is shut down, after receiving the shutdown signal of the auxiliary machine 202, a detection signal is generated to control the detection of whether there is a cigarette pack on the cigarette pack transmission channel 203. If there is, a confirmation signal is generated and output. The former can reduce the signal transmission time because there is no transmission of the detection signal; the latter can save electricity and energy because the detection only needs to be turned on when the auxiliary machine 202 is shut down.

[0065] Further, in step S103, detecting whether there is a cigarette pack in the cigarette pack transmission channel 203 includes: detecting whether there is a cigarette pack in the first preset position on the cigarette pack transmission channel 203. In step S104, removing the cigarette pack on the cigarette pack transmission channel 203 includes: removing the detected cigarette pack on the cigarette pack transmission channel.

[0066] Specifically, the first preset position is a position on the cigarette packet transmission channel 203 that is closer to the host, and the position for rejecting cigarette packets is on the downstream side of the first preset position along the transmission direction of the cigarette packet transmission channel 203 and is adjacent to the first preset position. If a cigarette packet is detected at the first preset position, after receiving a stop signal and a confirmation signal that a cigarette packet exists, a rejection signal is generated to reject the detected cigarette packet at the position for rejecting cigarette packets.

[0067] Specifically, Figure 2 and Figure 3As shown, in this embodiment, the system of the method for improving the operation efficiency of the packaging unit includes a cigarette pack detection device 206, a controller 207 and a rejection device 208, wherein the cigarette pack detection device 206 is arranged at a first preset position, connected to the controller 207, and used to detect whether there is a cigarette pack in the cigarette pack transmission channel 203; the rejection device 208 is arranged on the downstream side of the cigarette pack transmission channel 203 close to the first preset position, connected to the controller 207, and used to reject the cigarette pack on the cigarette pack transmission channel. The downstream side refers to the direction of transmitting the cigarette pack from the main machine 201 to the auxiliary machine 202 relative to the cigarette pack transmission channel 203. In step S104, the cigarette pack on the cigarette pack transmission channel 203 is rejected, which means that after the cigarette pack detection device 206 detects the cigarette pack at the first preset position, it sends a confirmation signal to the controller 207, and after receiving the stop signal of the auxiliary machine 202 and the above confirmation signal, the controller 207 sends a rejection signal to the rejection device 208, and controls the rejection device 208 to reject the detected cigarette pack.

[0068] Furthermore, the method for improving the operating efficiency of the packaging unit also includes:

[0069] Step S102, detecting the first time when the second preset position is blocked by the cigarette pack; wherein the second preset position is located between the first preset position and the auxiliary machine; comparing the first time with the first threshold time to determine whether the first time exceeds the first threshold time.

[0070] Specifically, the second preset position is located between the position for rejecting cigarette packs and the auxiliary machine, close to one side of the auxiliary machine.

[0071] It is worth noting that step S102 can be performed before step S103, or after step S103, or simultaneously with step S101 and step S103. As long as the three conditions of receiving a stop signal, a confirmation signal, and the first time exceeding the first threshold time are met, the cigarette package detected at the first preset position can be rejected. For example, after receiving the stop signal from the auxiliary machine 202, step S102 can be performed first to determine whether the first time of the cigarette package blocking exceeds the first threshold time, and then step S103 can be performed to determine whether a confirmation signal is received to determine whether a cigarette package is detected at the first preset position. Step S103 can also be performed first, that is, after receiving the stop signal and confirmation signal from the auxiliary machine 202, step S102 can be performed to determine whether a confirmation signal is received to determine whether a cigarette package is detected at the first preset position.

[0072] Specifically, when the first time when the second preset position is detected to be blocked by the cigarette pack, when the packaging unit is operating normally (that is, neither the main machine nor the auxiliary machine is shut down), if the first time exceeds a certain time, it means that the cigarette pack transmission channel 203 is blocked by the cigarette pack near the auxiliary machine 202. At this time, the auxiliary machine 202 is controlled to run at high speed to prevent the cigarette pack from blocking the main machine 201 and causing the main machine 201 to shut down.

[0073] Specifically, in step S102, the first threshold time is the time taken for the cigarette pack to be blocked from the second preset position to the first preset position, or the time taken for the cigarette pack to be blocked from the second preset position to any position between the position where the cigarette pack is rejected. The first threshold time is set because a portion of the cigarette packs can be arranged on the cigarette pack transmission channel 203, and these cigarette packs can be processed after the auxiliary machine 202 is operating normally, without the need to be rejected and then manually added, saving time and labor costs. Preferably, the first threshold time is set to the time taken for the cigarette pack to be blocked just to the position where the cigarette pack is rejected. More specifically, the first threshold time can be 400±10ms. Preferably, the first threshold time is 400ms.

[0074] Furthermore, in step S104, the detected cigarette packets on the cigarette packet transmission channel 203 are rejected until no rejection signal is received or a stop rejection signal is received. Since there is a distance between cigarette packets transmitted on the cigarette packet transmission channel 203, in order to save energy, it is not necessary to use the rejection device 208 (such as Figure 3 The rejecting device 208 is not always in the on state, but the rejecting signal can be kept on for a period of time (that is, the rejecting device 208 is turned on for a period of time and then turned off), and the duration is the time for rejecting a single box of cigarette packs. Specifically, the duration for rejecting cigarette packs on the cigarette pack transmission channel 203 can be 40±2ms. Preferably, it is 40ms.

[0075] Furthermore, the method for improving the operating efficiency of the packaging unit also includes step S105, after receiving the shutdown signal, recording the second time of the auxiliary machine shutdown; comparing the second time with the second threshold time, if the second time exceeds the second threshold time, stopping the removal of cigarette packs on the cigarette pack transmission channel.

[0076] Specifically, for example, when the auxiliary machine 202 needs to replace auxiliary materials or encounters a fault and needs to be shut down for a period of time, the above method can remove the cigarette packs on the cigarette pack transmission channel 203 to prevent the cigarette packs from blocking the main machine 201 and causing the main machine 201 to shut down. If the auxiliary machine 202 is still in a shutdown state after being shut down for more than a certain period of time, the cigarette packs will no longer be removed, and the cigarette packs on the cigarette pack transmission channel 203 will block the main machine 201. After the main channel blockage detection device of the main machine 201 detects the blockage of the cigarette packs, it will shut down the main machine 201, and the entire packaging unit will stop running. Specifically, the second threshold time can be set according to the specific situation. For example, the second threshold time can be set to 5 minutes. This is because if the auxiliary machine 202 is shut down for a long time and cigarette packs are being rejected during this period, more cigarette packs will be rejected, and it will take a long time to put the rejected cigarette packs back into the main machine 201 or the cigarette pack transmission channel 203. This will in turn reduce the effective operating efficiency of the packaging unit and waste manpower. Therefore, when the second shutdown time of the auxiliary machine 202 exceeds the second threshold time, the cigarette packs will no longer be rejected.

[0077] The working principle of this embodiment is as follows: when the auxiliary machine 202 stops, after receiving the stop signal of the auxiliary machine 202, it is detected whether there is a cigarette pack at the first preset position on the cigarette pack transmission channel 203. If there is, the detected cigarette pack on the cigarette pack transmission channel 203 is removed. In order to improve the operation efficiency of the packaging unit, the first time of cigarette pack blockage can also be detected at the second preset position. When the first time exceeds the preset first threshold time, that is, it is detected that the cigarette pack is blocked to the position where the cigarette pack is removed, if it is detected that there is a cigarette pack at the first preset position at this time, the cigarette pack on the cigarette pack transmission channel 203 is removed. In addition, when the second time of the auxiliary machine 202 stopping exceeds the preset second threshold time, the cigarette pack is no longer removed, and the cigarette pack is blocked to the main machine 201, and the entire packaging unit stops.

[0078] According to the method for improving the operating efficiency of the packaging unit provided by the present invention, when the auxiliary machine 202 stops, it is detected whether the first time that the second preset position is blocked by the cigarette pack exceeds the first threshold time, and whether there is a cigarette pack at the first preset position on the cigarette pack transmission channel. If the first time exceeds the first threshold time and there is a cigarette pack at the first preset position, the cigarette pack on the cigarette pack transmission channel 203 is removed, so that the cigarette pack will not block the main machine 201. Therefore, even if the auxiliary machine 202 stops, the main machine 201 can still operate normally, reducing the number of times the packaging unit stops and improving the working efficiency of the packaging unit.

[0079] Corresponding to the above method, the embodiment of the present invention also discloses a system for improving the operating efficiency of a packaging unit, such as Figure 2 and Figure 3As shown, the system includes an auxiliary machine shutdown detection module 204, a cigarette pack detection device 206, a rejection device 208 and a controller 207, wherein the auxiliary machine shutdown detection module 204 is connected to the auxiliary machine 202, and is used to detect whether the auxiliary machine 202 is shut down. When the auxiliary machine 202 is shut down, a shutdown signal is generated and output; the cigarette pack detection device 206 is set at a first preset position, which is a position between the main machine 201 and the auxiliary machine 202 along the cigarette pack transmission channel 203, and is used to detect whether there is a cigarette pack at the first preset position. If so, the cigarette pack detection device 203 generates and outputs a confirmation signal; the controller 207 is respectively connected to the auxiliary machine shutdown detection module 204, the cigarette pack detection device 206 and the rejection device 208, and is used to control the rejection device 208 to reject the cigarette packs on the cigarette pack transmission channel 203 after receiving the shutdown signal and the confirmation signal.

[0080] Based on the system for improving the operating efficiency of the packaging unit provided by the above-mentioned embodiment of the present invention, when the auxiliary machine 202 is detected to be stopped by the auxiliary machine stop detection module 204, a stop signal is generated and the stop signal is transmitted to the controller 207; at this time, if the cigarette pack detection device 206 detects that there are cigarette packs on the cigarette pack transmission channel 203, a confirmation signal is generated and the confirmation signal is output to the controller 207. After the controller 207 receives the stop signal and the confirmation signal, the controller 207 outputs a rejection signal to the rejection device 208 to control the rejection device 208 to reject the cigarette packs on the cigarette pack transmission channel 203. Therefore, even if the auxiliary machine 202 is stopped, the main machine 201 and the cigarette pack transmission channel 203 are still running, but because the cigarette packs on the cigarette pack transmission channel 203 are rejected, the cigarette packs on the cigarette pack transmission channel 203 will not block the main machine 201, and the main machine 201 will not stop running, thereby reducing the number of shutdowns of the packaging unit and improving the operating efficiency of the packaging unit.

[0081] Specifically, the cigarette pack detection device 206 detects whether there is a cigarette pack at the first preset position on the cigarette pack transmission channel 203. It can detect all the time during the operation of the packaging unit, or send a detection signal to detect whether there is a cigarette pack at the first preset position after receiving a stop signal.

[0082] Furthermore, the controller 207 is also used to generate a detection signal after receiving a stop signal, and transmit the detection signal to the cigarette pack detection device 206, so as to control the cigarette pack detection device 206 to detect whether there is a cigarette pack at the first preset position. Specifically, when the auxiliary machine 202 stops, after receiving the stop signal of the auxiliary machine 202, a detection signal is generated and output to the cigarette pack detection device 206 to detect whether there is a cigarette pack at the first preset position on the cigarette pack transmission channel 203. If there is a cigarette pack, a confirmation signal is generated and output to the controller 207.

[0083] Furthermore, if Figure 2As shown, in this embodiment, the rejection device 208 is located on the downstream side of the cigarette packet transmission channel 203 near the first preset position, connected to the controller 207, and is used to reject the cigarette packets on the cigarette packet transmission channel. The downstream side refers to the direction of the cigarette packet transmission from the main machine 201 to the auxiliary machine 202 relative to the cigarette packet transmission channel 203. Specifically, the rejection device 208 includes a compressed air power source 2081, a solenoid valve 2082, a rejection port 2083 and a cigarette packet collection device 2084. The compressed air power source 2081 is used to provide compressed air to the rejection port 2083 when the solenoid valve 2082 is opened; the solenoid valve 2082 is connected to the controller 207, the compressed air power source 2081 and the rejection port 2083, and is used to receive the rejection signal sent by the controller 207 and control the opening and closing of the solenoid valve 2082 according to the rejection signal, thereby opening or closing the compressed air power source 2081. When the solenoid valve 2082 receives a rejection signal, the solenoid valve 2082 opens, and the compressed air power source 2081 delivers compressed air to the rejection port 2083, thereby rejecting the cigarette packs on the cigarette pack transmission channel 203 directly opposite to the rejection port 2083; when the solenoid valve 2082 receives a stop rejection signal or the first time the rejection signal lasts exceeds the first threshold time or no rejection signal is received, the solenoid valve 2082 closes. Of course, when it is not necessary to reject the cigarette packs, the switch of the compressed air power source 2081 can also be manually turned off to stop supplying compressed air to the rejection port 2083, which will also shut down the entire packaging unit. In addition, the cigarette pack collection device 2084 is arranged on the side of the cigarette pack transmission channel 203 opposite to the rejection port 2083, and is used to collect the rejected cigarette packs.

[0084] Specifically, controlling the rejection device 208 to reject the cigarette packs on the cigarette pack transmission channel 203 means that after the cigarette pack detection device 206 detects the cigarette packs at the first preset position, it sends a confirmation signal to the controller 207. After receiving the shutdown signal of the auxiliary machine 202 and the above-mentioned confirmation signal, the controller 207 sends a rejection signal to the rejection device 208, and controls the rejection device 208 to reject the detected cigarette packs.

[0085] Specifically, the cigarette pack detection device 206 can be turned on all the time during the operation of the packaging unit, or it can be turned on after the controller 207 receives the shutdown signal of the auxiliary machine 202 and sends a detection signal to the cigarette pack detection device 206. The former can reduce the time taken by the controller 207 to generate the rejection signal because it can reduce the transmission of the signal; the latter can save electricity and energy because the cigarette pack detection device 206 is turned on only when needed.

[0086] Furthermore, the system further includes a cigarette pack blocking timing device 205, which is arranged at a second preset position, and the second preset position is located on the side of the cigarette pack transmission channel 203 close to the auxiliary machine 202. The cigarette pack blocking timing device 205 is connected to the controller 207, and is used to detect the first time when the second preset position is blocked by the cigarette pack, and output the first time to the controller 207; the controller 207 is also used to compare the first time with the first threshold time after receiving the stop signal and the confirmation signal, and if the first time exceeds the first threshold time, the controller 207 controls the rejection device 208 to reject the cigarette pack on the cigarette pack transmission channel 203. Exemplarily, the controller 207 mentioned above compares the first time with the first threshold time to determine whether the first time exceeds the first threshold time, which can also be executed after the controller 207 receives the stop signal and before the controller 207 receives the confirmation signal. That is, after the controller 207 receives the stop signal, if the first time exceeds the first threshold time and receives the confirmation signal, the controller 207 controls the rejection device 208 to reject the cigarette pack on the cigarette pack transmission channel 203.

[0087] Specifically, the cigarette pack blocking timing device 205 detects the first time when the device is blocked by the cigarette pack at the second preset position. When the packaging unit is operating normally, if the first time exceeds a certain time, it means that the cigarette pack transmission channel 203 is blocked by cigarette packs near the auxiliary machine 202. At this time, the auxiliary machine 202 is controlled to run at high speed to prevent the cigarette packs from blocking the main machine 201 and causing the main machine 201 to shut down.

[0088] Specifically, in this embodiment, a first threshold time is set, which can be the time taken for the cigarette pack to be blocked from the second preset position to the rejection device 208, or the time taken for the cigarette pack to be blocked from the second preset position to any position between the rejection device 208. This is because a portion of the cigarette packs can be arranged on the cigarette pack transmission channel 203, and these cigarette packs can be processed after the auxiliary machine 202 is operating normally, without the need to be manually added after being rejected, saving time and labor costs. Preferably, the first threshold time is set to the time taken for the cigarette pack to be blocked at the rejection device 208. More specifically, the first threshold time can be 400±10ms. Preferably, the first threshold time is 400ms.

[0089] In addition, in this embodiment, the cigarette pack blocking timing device 205 is used to determine whether the cigarette pack is blocked to the position corresponding to the first threshold time. After the controller 207 receives the shutdown signal sent by the auxiliary machine shutdown detection module 204, it can first determine whether the cigarette pack has blocked a certain distance before the cigarette pack detection device 206 detects the presence of a cigarette pack at the first preset position, that is, after the controller 207 determines that the first time detected by the cigarette pack blocking timing device 205 exceeds the first threshold time, and then receives the confirmation signal sent by the cigarette pack detection device 206, it starts to remove the detected cigarette pack. It is also possible to determine whether the cigarette pack is blocked for a certain distance after the cigarette pack detection device 206 detects the presence of a cigarette pack at the first preset position, and then remove the detected cigarette pack.

[0090] Furthermore, the rejection device 208 receives the rejection signal output by the controller 207 and rejects the cigarette packs on the cigarette pack transmission channel 203 until it receives no rejection signal or receives a stop rejection signal. Since there is a distance between the cigarette packs transmitted on the cigarette pack transmission channel 203, in order to save energy, it is not necessary for the rejection device 208 to process the opening device all the time, but the rejection signal can be continued for a period of time (that is, the rejection device 208 is turned on for a period of time and then turned off), and the duration is the time for rejecting a single box of cigarette packs. Specifically, the duration of rejecting the cigarette packs on the cigarette pack transmission channel 203 can be 40±2ms. Preferably, it is 40ms.

[0091] Furthermore, the system further includes a second timing module 209 connected to the controller 207, and configured to record a second time of shutdown of the auxiliary machine 202 after the controller 207 receives a shutdown signal, and output the second time to the controller 207;

[0092] The controller 207 is further used to compare the second time with a second threshold time. If the second time exceeds the second threshold time, the controller 207 controls the rejecting device 208 to stop rejecting the cigarette packets on the cigarette packet transmission channel 203 .

[0093] Specifically, for example, when the auxiliary machine 202 needs to replace auxiliary materials or encounters a fault and needs to be shut down for a period of time, the rejection device 208 can reject the cigarette packs on the cigarette pack transmission channel 203 after receiving the rejection signal sent by the controller 207, so as to prevent the cigarette packs from blocking the main machine 201 and causing the main machine 201 to shut down. If the auxiliary machine 202 needs to be shut down for a long time after being shut down for more than a certain period of time, the cigarette packs will no longer be rejected, and the cigarette packs on the cigarette pack transmission channel 203 will block the main machine 201. After the main channel blockage detection device of the main machine 201 detects the blockage of the cigarette packs, it will shut down the main machine 201, and the entire packaging unit will stop running. Specifically, the second threshold time can be set according to the specific situation. For example, the second threshold time can be set to 5 minutes. This is because if the auxiliary machine 202 is shut down for a long time and cigarette packs are being rejected during this period, more cigarette packs will be rejected, and it will take a long time to put the rejected cigarette packs back into the main machine 201 or the cigarette pack transmission channel 203. This will in turn reduce the effective operating efficiency of the packaging unit and waste manpower. Therefore, when the second shutdown time of the auxiliary machine 202 exceeds the second threshold time, the cigarette packs will no longer be rejected.

[0094] The working principle of this embodiment is as follows: when the auxiliary machine stop detection module 204 detects that the auxiliary machine 202 stops, a stop signal is generated and sent to the controller 207. After receiving the stop signal, the controller 207 controls the cigarette pack detection device 206 to detect whether there is a cigarette pack at the first preset position on the cigarette pack transmission channel 203. If there is, the cigarette pack detection device 206 generates and sends a confirmation signal to the controller 207. After receiving the confirmation signal, the controller 207 generates a rejection signal to the rejection device 208 to reject the detected cigarette pack on the cigarette pack transmission channel 203. In order to improve the operation efficiency of the packaging unit, it is also possible to determine that the first time exceeds the preset first threshold time according to the first time of cigarette pack blockage detected by the cigarette pack blocking timing device 205 at the second preset position, that is, when it is detected that the cigarette pack is blocked to the position where the cigarette pack is rejected, if the cigarette pack detection device 206 detects that there is a cigarette pack at the first preset position at this time, the cigarette pack on the cigarette pack transmission channel 203 is rejected. In addition, when the second shutdown time of the auxiliary machine 202 exceeds the preset second threshold time, the cigarette packs are no longer rejected, and the cigarette packs are blocked in the main machine 201, and then the entire packaging unit is shut down.

[0095] According to the system for improving the operating efficiency of the packaging unit provided by the present invention, when the auxiliary machine 202 stops, it is detected whether the first time that the second preset position is blocked by the cigarette pack exceeds the first threshold time, and whether there is a cigarette pack at the first preset position on the cigarette pack transmission channel. If the first time exceeds the first threshold time and there is a cigarette pack at the first preset position, the cigarette pack on the cigarette pack transmission channel 203 is removed, so that the cigarette pack will not block the main machine 201. Therefore, even if the auxiliary machine 202 stops, the main machine 201 can still operate normally, reducing the number of times the packaging unit stops and improving the working efficiency of the packaging unit.

[0096] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A method for improving the operating efficiency of a packaging unit, wherein the packaging unit comprises a main machine, an auxiliary machine, and a cigarette packet transmission channel arranged between the main machine and the auxiliary machine, It is characterized in that The method comprises: Detecting whether the auxiliary machine is shut down, and when the auxiliary machine is shut down, generating and outputting a shutdown signal; Detecting whether there is a cigarette packet in the cigarette packet transmission channel, and if so, generating and outputting a confirmation signal; receiving the stop signal and the confirmation signal, and removing the cigarette packs on the cigarette pack transmission channel; After receiving the shutdown signal, recording a second time when the auxiliary machine is shut down; The second time is compared with a preset second threshold time, and if the second time exceeds the second threshold time, the removal of cigarette packets on the cigarette packet transmission channel is stopped.

2. The method for improving the operating efficiency of a packaging unit according to claim 1, It is characterized in that The detecting whether there is a cigarette pack in the cigarette pack transmission channel comprises: detecting whether there is a cigarette pack in a first preset position on the cigarette pack transmission channel; The removing of the cigarette packets on the cigarette packet transmission channel includes: removing the detected cigarette packets on the cigarette packet transmission channel.

3. The method for improving the operating efficiency of a packaging unit according to claim 2, It is characterized in that After receiving the stop signal and the confirmation signal and before rejecting the detected cigarette pack, the method further includes: Detecting a first time when a second preset position is blocked by a cigarette pack; wherein the second preset position is located between the first preset position and the auxiliary machine; The first time is compared with a first threshold time, and if the first time exceeds the first threshold time, the detected cigarette pack is rejected.

4. The method for improving the operating efficiency of a packaging unit according to claim 2, It is characterized in that After receiving the stop signal and the confirmation signal, removing the detected cigarette packs on the cigarette pack transmission channel includes: Detecting a first time when a second preset position is blocked by a cigarette pack; wherein the second preset position is located between the first preset position and the auxiliary machine; After receiving the shutdown signal, the first time is compared with the first threshold time. If the first time exceeds the first threshold time, it is determined whether the confirmation signal is received. If the confirmation signal is received, the detected cigarette pack is discarded.

5. The method for improving the operating efficiency of a packaging unit according to claim 3 or 4, It is characterized in that The first threshold time is 400±10ms.

6. The method for improving the operating efficiency of a packaging unit according to claim 1, It is characterized in that The detecting whether there is a cigarette packet in the cigarette packet transmission channel comprises: It is determined whether the shutdown signal is received, and if the shutdown signal is received, it is detected whether there is a cigarette pack in the cigarette pack transmission channel.

7. The method for improving the operating efficiency of a packaging unit according to claim 1, It is characterized in that The duration for removing cigarette packets on the cigarette packet transmission channel is 40±2ms.

8. A system for improving the operating efficiency of a packaging unit, wherein the packaging unit comprises a main machine, an auxiliary machine, and a cigarette packet transmission channel connected between the main machine and the auxiliary machine, It is characterized in that The system comprises: An auxiliary machine shutdown detection module, connected to the auxiliary machine, for detecting whether the auxiliary machine is shut down, and generating and outputting a shutdown signal when the auxiliary machine is shut down; A cigarette packet detection device, used to detect whether there is a cigarette packet in the cigarette packet transmission channel, and if so, the cigarette packet detection device generates and outputs a confirmation signal; Rejection device; a controller, connected to the auxiliary machine stop detection module, the cigarette pack detection device and the rejection device, respectively, for controlling the rejection device to reject cigarette packs on the cigarette pack transmission channel after receiving the stop signal and the confirmation signal; A second timing module is connected to the controller, and is used for recording a second time of the auxiliary machine shutdown after the controller receives the shutdown signal, and outputting the second time to the controller. The controller generates a detection signal after receiving the shutdown signal, and transmits the detection signal to the cigarette packet detection device to control the cigarette packet detection device to detect whether there is a cigarette packet on the cigarette packet transmission channel; The controller is also used to compare the second time with a preset second threshold time. If the second time exceeds the second threshold time, the controller controls the rejection device to stop rejecting the cigarette packs on the cigarette pack transmission channel.

9. The system for improving the operating efficiency of a packaging unit according to claim 8, It is characterized in that The cigarette packet detection device is arranged at a first preset position on the cigarette packet transmission channel, and is used to detect whether there is a cigarette packet at the first preset position; The rejecting device is arranged at the downstream side of the first preset position and adjacent to the cigarette packet detection device, and is used to reject the cigarette packets detected by the cigarette packet detection device on the cigarette packet transmission channel.

10. The system for improving the operating efficiency of a packaging unit according to claim 9, It is characterized in that Also includes: a cigarette pack shielding timing device, connected to the controller, for detecting a first time when a second preset position is shielded by the cigarette pack, and outputting the first time to the controller, wherein the second preset position is located between the first preset position and the auxiliary machine; The controller is also used to compare the first time with a first threshold time after receiving the shutdown signal and the confirmation signal. If the first time exceeds the first threshold time, the controller controls the rejection device to reject the detected cigarette package.

11. The system for improving the operating efficiency of a packaging unit according to claim 9, It is characterized in that Also includes: a cigarette pack shielding timing device, connected to the controller, for detecting a first time when a second preset position is shielded by the cigarette pack, and outputting the first time to the controller, wherein the second preset position is located between the first preset position and the auxiliary machine; The controller is also used to compare the first time with a first threshold time after receiving the shutdown signal. If the first time exceeds the first threshold time, the controller determines whether the confirmation signal is received. If the confirmation signal is received, the controller controls the rejection device to reject the detected cigarette package.

12. The system for improving the operating efficiency of a packaging unit according to claim 10 or 11, It is characterized in that The first threshold time is 400±10ms.

13. The system for improving the operating efficiency of a packaging unit according to claim 8, It is characterized in that The duration for the rejection device to reject cigarette packets on the cigarette packet transmission channel is 40±2ms.

14. The system for improving the operating efficiency of a packaging unit according to claim 8, It is characterized in that The rejecting device comprises: Compressed air power source; A solenoid valve connected to the controller and the compressed air power source, and used to open or close the compressed air power source under the control of the controller; A rejection port connected to the electromagnetic valve, and used for ejecting the gas output by the compressed air power source through the rejection port when the electromagnetic valve is opened; The cigarette pack collecting device is arranged on a side of the cigarette pack transmission channel opposite to the rejection port, and is used for collecting the rejected cigarette packs.

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