An adaptive cigarette pack stopping device

Abstract

The present application relates to an adaptive cigarette pack stopping device, comprising: a mounting frame; a first pressing member; a second pressing member; a driving element, driving the first pressing member to approach or move away from the second pressing member, and the cigarette pack can be stopped when the first pressing member and the second pressing member are close to each other; a first pressure sensor, used to detect the pressure value between the first pressing member and the cigarette pack; a second pressure sensor, used to detect the pressure value between the second pressing member and the cigarette pack; a signal processing unit, which is electrically connected to the first pressure sensor, the second pressure sensor and the driving element. By stopping the cigarette pack on the conveyor belt by adaptive clamping, deformation, position change and the like can be avoided when stopping during the cigarette pack packaging process, and the smooth transportation of the cigarette pack on the conveyor belt will not be blocked, so that the packaging process can be carried out continuously and smoothly. Moreover, according to the adaptive adjustment, the stopping process of cigarette packs of various sizes can also be adapted.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette packaging, and in particular to an adaptive cigarette pack stopping device. Background Art

[0002] In the process of cigarette production in a cigarette factory, cigarettes are first loaded into single packs to form cigarette packs, which are then loaded into single strips to form cigarette strips, and then the cigarette strips are loaded into boxes. In the process of packing cigarette strips, the packaging unit is provided with an upper conveyor belt and a lower conveyor belt, and a cigarette pushing device pushes a row of cigarette packs onto the lower conveyor belt on one side of the upper conveyor belt. Taking a single strip of 10 cigarette packs as an example, the cigarette pushing device first pushes 5 cigarette packs arranged in parallel onto the lower conveyor belt on one side of the upper conveyor belt, and then the upper conveyor belt continues to transport 5 cigarette packs forward, and the cigarette pushing device then pushes the 5 cigarette packs on the upper conveyor belt onto the 5 cigarette packs on the lower conveyor belt, thereby forming a single strip of 10 cigarette packs. The lower conveyor belt then transports the 10 cigarette packs to the next process to complete the single strip. In the above process of packing cigarette cartons, when the cigarette pushing device pushes the cigarette pack on the upper conveyor belt, the subsequent cigarette pack on the conveyor belt needs to be stopped so that the cigarette pack no longer moves forward. The usual practice is to set a baffle upstream of the cigarette pushing device. When the cigarette pushing device wants to push the cigarette pack, the baffle extends out and blocks the upstream cigarette pack from continuing to move forward. After the cigarette pushing device is reset, the baffle also returns to its position, and the cigarette pack continues to move forward. Then the cigarette pushing device performs the next cigarette pushing action. In the process of the baffle extending to block the cigarette pack and returning to its position, due to the friction between the baffle and the cigarette pack, it is easy to drive the cigarette pack behind under the action of friction, causing the position of the cigarette pack to change, or it is easy to collide with the cigarette pack behind, which can easily cause the cigarette pack conveying to be blocked and affect the normal operation of the packaging process. Utility Model Content

[0003] The purpose of the present application is to provide an adaptive cigarette pack stopping device, which can avoid deformation, dislocation and the like of the cigarette pack during the stopping process, facilitate the smooth progress of the process, and thus effectively solve the shortcomings existing in the prior art.

[0004] To this end, in a first aspect, an embodiment of the present application provides an adaptive cigarette pack stopping device, comprising:

[0005] Mounting frame;

[0006] A first abutting member, movable relative to the mounting frame;

[0007] A second abutting member, fixed relative to the mounting frame;

[0008] A driving element is disposed on the mounting frame and connected to the first abutting member to drive the first abutting member to approach or move away from the second abutting member. When the first abutting member and the second abutting member are close to each other, the cigarette pack can be stopped. When the first abutting member and the second abutting member are away from each other, the cigarette pack can be released.

[0009] A first pressure sensor, disposed on the first abutting member, for detecting a pressure value between the first abutting member and the cigarette pack;

[0010] A second pressure sensor, disposed on the second abutting member, for detecting a pressure value between the second abutting member and the cigarette pack;

[0011] The signal processing unit is electrically connected to the first pressure sensor, the second pressure sensor and the driving element.

[0012] In some possible implementations, a connecting arm is further included, and the driving element drives the first abutting member to move via the connecting arm.

[0013] In some possible implementations, the connecting arm includes a base and an extension, the base cooperates with the driving element, a first hole is provided on the mounting frame, one end of the extension is connected to the base, and the other end of the extension can movably pass through the first hole and be connected to the first clamping member.

[0014] In some possible implementations, the driving element is a diaphragm clamping cylinder, the output end and base of the diaphragm clamping cylinder abut against each other to drive the first clamping member to approach the second clamping member, and an elastic member is arranged between the mounting frame and the connecting arm to drive the first clamping member away from the second clamping member.

[0015] In some possible implementations, an adjustable limiting assembly is provided on the mounting frame, and the base abuts against the limiting assembly when moving, so as to limit the first pressing member from further approaching the second pressing member.

[0016] In some possible implementations, a third pressure sensor is disposed on the base, and the third pressure sensor is electrically connected to the signal processing unit.

[0017] In a second aspect, the present application further provides a method for adaptive adjustment, which is applied to the above-mentioned adaptive cigarette pack stopping device, and comprises the following steps:

[0018] S1: Determine the existence status of cigarette packs in the moving area;

[0019] S2: determining the motion state of the cigarette pack in the moving area;

[0020] S3: When a cigarette pack exists in the moving area and stops moving, the signal processing unit controls the driving element to work; the driving element drives the first abutting member to move in a direction close to the second abutting member, and adaptively stops the cigarette pack in the braking area;

[0021] S4: when the cigarette pack exists in the moving area and moves normally or the cigarette pack does not exist in the moving area, the signal processing unit controls the driving element to stop working, and under the action of the elastic member, drives the second abutting member to move in a direction away from the second abutting member;

[0022] Among them, an adaptive cigarette pack stopping device and a cigarette pushing device are arranged in sequence along the direction of conveying cigarette packs on the conveyor belt. The area on the conveyor belt corresponding to the cigarette pushing device is the moving area, and the area on the conveyor belt corresponding to the adaptive cigarette pack stopping device is the braking area.

[0023] In some possible implementations, step S3 includes the following steps:

[0024] S31: obtaining a real-time pressure value of the cigarette pack being squeezed and stopped;

[0025] S32: Determine the pressure difference between the real-time pressure value and the preset pressure threshold;

[0026] S33: When the pressure difference is greater than the preset pressure difference threshold, the signal processing unit will adjust the movement stroke of the driving element.

[0027] In some possible implementations, step S31 includes the following steps:

[0028] S311: Obtaining a real-time first contact pressure value on the first pressing member when the first pressing member contacts the cigarette pack;

[0029] S312: After the first contact pressure value is obtained, a real-time second contact pressure value on the second abutting member when the cigarette pack contacts the second abutting member is obtained;

[0030] S313: After the second contact pressure value is obtained, a third contact pressure value on the first abutting member in real time is obtained again;

[0031] S314: Determine the third contact pressure value as the real-time pressure value, and feed back the real-time pressure value to the signal processing unit.

[0032] In some possible implementations, the following steps are also included:

[0033] Ⅰ: Monitor the pressure fluctuation on the base when the base is pushed by the driving element and abuts against the limit assembly;

[0034] Ⅱ: Determine whether the pressure value in step Ⅰ exceeds the preset pressure value fluctuation range;

[0035] III: When the pressure value exceeds the preset pressure value fluctuation range, the signal processing unit will control the driving element to stop working.

[0036] According to the adaptive cigarette pack stopping device provided in the embodiment of the present application, the cigarette packs on the conveyor belt are stopped by adaptive clamping, which can avoid deformation, position change and the like when the cigarette packs are stopped during the packaging process, and will not cause obstruction to the smooth transportation of the cigarette packs on the conveyor belt, so that the packaging process can be carried out continuously and smoothly. Moreover, according to the adaptive adjustment, it can also adapt to the stopping process of cigarette packs of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the structure of the adaptive cigarette pack stopping device provided in the embodiment of the present application Figure 1 ;

[0038] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0039] Figure 3 Schematic diagram of the structure of the adaptive cigarette pack stopping device provided in the embodiment of the present application Figure 2 ;

[0040] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0041] Figure 5 Schematic diagram of the structure of the driving element, the connecting arm, the first abutting member and the guide plate provided in the embodiment of the present application Figure 1 ;

[0042] Figure 6 Schematic diagram of the structure of the driving element, the connecting arm, the first abutting member and the guide plate provided in the embodiment of the present application Figure 2 ;

[0043] Figure 7 A schematic diagram of the structure of the connecting arm provided in an embodiment of the present application;

[0044] Figure 8 A schematic diagram of the structure of the mounting frame provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0046] like Figure 1-Figure 8 As shown, the embodiment of the present application provides an adaptive cigarette pack stopping device, which is used in the process of packaging cigarette packs into strips. During the process, an upper conveyor belt 900 and a lower conveyor belt 900 are set. A plurality of cigarette packs are continuously transported on the upper conveyor belt 900. A cigarette pushing device is also set on one side of the upper conveyor belt 900. When a single strip packaging process of 10 packs is carried out, the cigarette pushing device pushes 5 cigarette packs arranged in a row on the upper conveyor belt 900 onto the lower conveyor belt 900. At this time, the lower conveyor belt 900 is stationary, and then the cigarette pushing device is reset, and the upper conveyor belt 900 continues to run and transport forward. When the 5 cigarette packs are transported to the position of the cigarette pushing device again, the cigarette pushing device pushes the 5 cigarette packs to the top of the 5 cigarette packs on the lower conveyor belt 900 to form an arrangement of 10 cigarette packs. Then the lower conveyor belt 900 transports the arranged 10 cigarette packs to the subsequent process for further packaging. Among them, when the cigarette pushing device pushes the cigarette packs on the upper conveyor belt 900, the upper conveyor belt 900 needs to be moved forward. In order to stop the cigarette packs upstream of the belt 900, a baffle is usually set in front of the cigarette pushing device. When the cigarette pushing device pushes the cigarette packs, the baffle extends to stop the upstream cigarette packs from moving forward. A set number of downstream cigarette packs are pushed to the lower conveyor belt 900 by the cigarette pushing device. After the cigarette pushing device returns to its position, the baffle also returns to its position to release the cigarette packs. After the cigarette packs move forward a specified number of times, the cigarette pushing device and the baffle perform the next step of pushing cigarettes again. This process is repeated to complete the packaging of the cigarette packs in strips. However, there are certain defects in the cigarette pack stopping method using a baffle. During the process of the baffle extending and returning to its position, friction is generated between the baffle and the cigarette packs. Under the driving effect of friction, the upstream cigarette packs in contact with the baffle are prone to position displacement, or the baffle is prone to collide with the upstream cigarette packs when it is extended, which also leads to the displacement of the cigarette packs. After the position of the cigarette packs changes, it is easy to cause blockage in the transportation of the cigarette packs, so that the cigarette packs cannot be transported smoothly.

[0047] The adaptive cigarette pack stopping device provided in the present application is used to solve the above-mentioned defects. The adaptive cigarette pack stopping device includes a mounting frame 100, a first pressing member 21, a second pressing member 22, a driving element 300, a first pressure sensor, a second pressure sensor and a signal processing unit. The mounting frame 100 is installed on a conveyor belt 900. Here, the conveyor belt 900 refers to the upper conveyor belt 900 described in the previous paragraph. In the following, it is referred to as the conveyor belt 900. Along the forward direction of the conveyor belt 900, the adaptive cigarette pack stopping device and the cigarette pushing device are sequentially arranged. The area on 900 corresponding to the adaptive cigarette pack stopping device is called the braking area 901, and the area on the conveyor belt 900 corresponding to the cigarette pushing device is called the moving area 902. The moving area 902 and the braking area 901 are adjacently connected, and the upstream end of the moving area 902 is connected to the downstream end of the braking area 901. The downstream end of the moving area 902 is the very end of the conveyor belt 900. The adaptive cigarette pack stopping device stops the cigarette pack in the braking area 901, and the cigarette pushing device pushes the cigarette pack in the moving area 902 to push the cigarette pack to another conveyor belt 900.

[0048] The mounting frame 100 is mounted at the position of the braking area 901 on the conveyor belt 900. The first fastening member 21 is movable relative to the mounting frame 100, and the second fastening member 22 is fixed relative to the mounting frame 100. The second fastening member 22 and the mounting frame 100 are respectively located on both sides of the width direction of the conveyor belt 900, and the first fastening member 21 and the second fastening member 22 are both located on the top of the conveyor belt 900. The cigarette packs transported on the conveyor belt 900 can pass through the space between the first fastening member 21 and the second fastening member 22. Moving forward, the driving element 300 is arranged on the mounting frame 100, and the output end of the driving element 300 is connected to the first clamping member 21. Driven by the driving element 300, the first clamping member 21 can be close to the second clamping member 22 or away from the second clamping member 22. When the first clamping member 21 and the second clamping member 22 are close to each other, the cigarette package transported on the conveyor belt 900 can be clamped and stopped. When the first clamping member 21 is away from the second clamping member 22, the cigarette package can be released, so that the cigarette package can be transported on the conveyor belt 900.

[0049] The first pressure sensor is arranged on the first pressing member 21, and is used to detect the pressure value between the first pressing member 21 and the cigarette pack. The second pressure sensor is arranged on the second pressing member 22, and is used to detect the pressure value between the second pressing member 22 and the cigarette pack. The signal processing unit and the first pressure sensor are electrically connected, the signal processing unit and the second pressure sensor are electrically connected, and the signal processing unit and the driving element 300 are electrically connected.

[0050] Preferably, the first clamping member 21 and the second clamping member 22 are both long plate-shaped structures, and the length direction of the first clamping member 21 and the second clamping member 22 is parallel to the arrangement direction of the cigarette packs, and the reciprocating movement direction of the first clamping member 21 is perpendicular to the arrangement direction of the cigarette packs. The first clamping member 21 and the second clamping member 22 stop the cigarette packs by clamping, and the stopping is more reliable.

[0051] Under the control of the signal processing unit, when the pressure generated between the first clamping member 21, the second clamping member 22 and the cigarette pack is too large, the stroke of the driving element 300 to drive the first clamping member 21 is reduced to reduce the force applied to the cigarette pack, so that the force and the cigarette pack are more adapted to each other. The specific force size can be determined based on the test to prevent the cigarette pack from being deformed. It can also avoid changes in the posture and position of the stopped cigarette pack, avoid obstruction to the transportation of the cigarette pack, and make the process smoother.

[0052] The first pressure sensor and the second pressure sensor are the same pressure sensors. The pressure sensor can sense pressure signals and convert pressure signals into usable output electrical signals. The pressure sensor generally includes a pressure sensitive element. The pressure sensitive element is used to collect target pressure signals. The signal processing unit is used to convert the pressure signals collected by the pressure sensitive element into output electrical signals. In some embodiments, the pressure sensitive element of the first pressure sensor abuts against the body of the first abutting member 21, and can collect the pressure signal between the first abutting member 21 and the cigarette pack in real time after the first abutting member 21 and the cigarette pack come into contact. The pressure sensitive element of the second pressure sensor abuts against the body of the second abutting member 22, and is used to collect the real-time pressure signal after the cigarette pack comes into contact with the second abutting member 22. The real-time pressure signals are all converted into electrical signals and transmitted to the signal processing unit, and then regulated by the action of the driving element 300.

[0053] In some embodiments, when the first clamping member 21 and the second clamping member 22 come into contact with cigarette packs of different sizes, the first pressure sensor and the second pressure sensor will respectively obtain the real-time pressures on the first clamping member 21 and the second clamping member 22, and transmit the corresponding pressure signals to the signal processing unit. The signal processing unit controls the movement stroke of the driving element 300 according to the different real-time pressures, thereby making the first clamping member 21 and the cigarette pack technologically compatible and realizing adaptive adjustment.

[0054] In this embodiment, a connecting arm 400 is also included, and the driving element 300 drives the first clamping member 21 to move through the connecting arm 400. The structure of the connecting arm 400 is not specifically limited and can be set according to the layout space. Preferably, the connecting arm 400 includes a base 401 and an extension portion 402. The base 401 is used to cooperate with the driving element 300. A first hole 11 is provided on the mounting frame 100. One end of the extension portion 402 is connected to the base 401, and the other end of the extension portion 402 can movably pass through the first hole 11 and be connected to the first clamping member 21.

[0055] A self-lubricating guide sleeve made of polytetrafluoroethylene may be disposed in the first hole 11 , and the extension portion 402 may movably pass through the guide sleeve, so that the operation is smoother.

[0056] In one example, the mounting frame 100 includes a frame-shaped bracket 101, the bracket 101 has four outer frames and a cavity in the middle, one of the frames faces the side of the conveyor belt 900, the first hole 11 is formed through the frame, the other opposite frame is away from the conveyor belt 900, the driving element 300 is arranged on the inner side of the other frame, the base 401 is also arranged in a plate shape, the base 401 is in the middle cavity of the bracket 101, the extension part 402 is provided with two ends respectively connected vertically to the two ends of the base 401, the extension part 402 is a cylindrical structure, and the two extension parts 402 respectively correspond to the first holes 11 on the frame and can be moved through. A hole 11, the portion of the extension 402 that passes through the first hole 11 is connected to the first clamping member 21, the driving element 300 is preferably a diaphragm clamping cylinder, a control valve is arranged on the diaphragm clamping cylinder, the control valve and the signal processing unit are electrically connected, the control valve is connected to the air inlet of the diaphragm clamping cylinder, the diaphragm clamping cylinder has no static friction, thus ensuring sensitivity, accuracy and repeatability, the diaphragm clamping cylinder is a one-way acting cylinder, which can be reset, and has the characteristics of low gas consumption, variable output force, short stroke and small output force, the control valve can control the working stroke of the output end of the diaphragm clamping cylinder by controlling the air intake of the diaphragm clamping cylinder.

[0057] The functional characteristics of the diaphragm clamping cylinder are compatible with the process requirements. At the same time, the characteristics of the diaphragm clamping cylinder with single air hole, low gas consumption and flat structural layout are also conducive to saving installation space and reducing production costs.

[0058] In this embodiment, an elastic member 500 is provided between the mounting frame 100 and the connecting arm 400. Under the elastic action of the elastic member 500, the first abutting member 21 is driven away from the second abutting member 22. That is, the output end of the diaphragm clamping cylinder abuts against the base 401. The output end of the diaphragm clamping cylinder can push the base 401, and then push the first abutting member 21 toward the second abutting member 22 through the extension portion 402, so that the first abutting member 21 and the second abutting member 22 stop the cigarette pack. Then, when the cigarette pack needs to be released, the output end of the diaphragm clamping cylinder is retracted, and the elastic member 500 is used to push the first abutting member 21 to the second abutting member 22. The connecting arm 400 is used to return to its position, thereby driving the first clamping member 21 to return to its position, and the first clamping member 21 and the second clamping member 22 move away from each other, releasing the cigarette pack. The elastic member 500 is preferably a spring, and the spring is sleeved on the portion of the extension portion 402 that is in the middle cavity of the bracket 101. One end of the spring abuts against the extension portion 402, and the other end of the spring abuts against the frame of the bracket 101. When the diaphragm clamping cylinder pushes the first clamping member 21, the spring is compressed. When the output end of the diaphragm clamping cylinder is retracted, the first clamping member 21 moves away from the second clamping member 22 under the action of the spring.

[0059] An adjustable limit assembly 600 is also provided on the bracket 101. When the stroke of the diaphragm clamping cylinder pushing the first clamping member 21 is too large, the base 401 can abut against the limit assembly 600. The limit assembly 600 limits the movement of the base 401, restricting the first clamping member 21 from continuing to approach the second clamping member 22, thereby preventing the cigarette pack from being squeezed and deformed. Preferably, the limit assembly 600 is a limit screw, which is screwed on the frame of the bracket 101 where the first hole 11 is set, and the limit screw is in the middle cavity of the bracket 101, with one end of the nut of the limit screw facing the base 401 so as to adjust the position of the limit screw. The stroke of the base 401 is limited to achieve a limiting effect on the first clamping member 21. More preferably, a third pressure sensor can also be arranged on the base 401. The third pressure sensor and the signal processing unit are electrically connected. The pressure between the base 401 and the limit screw is detected by the third pressure sensor. The relative state between the base 401 and the limit screw is judged according to the pressure situation. When the pressure is detected between the base 401 and the limit screw, the third pressure sensor transmits the signal to the signal processing unit. The signal processing unit stops the output of the diaphragm clamping cylinder through the control valve to prevent accidents caused by excessive output force.

[0060] In one example, a guide plate 700 is provided on the side of the bracket 101 facing the conveyor belt 900, and the guide plate 700 and the second clamping member 22 are arranged in parallel, and the guide plate 700, the first clamping member 21 and the second clamping member 22 are all long plate-shaped structures, and the guide plate 700, the first clamping member 21 and the second clamping member 22 are arranged in parallel, and a channel for the cigarette pack to pass through is formed between the guide plate 700 and the second clamping member 22, and a groove 701 penetrating the thickness is provided on the guide plate 700, and the first clamping member 21 can retract the groove 701 or extend the groove 701 when moving back and forth. When the first clamping member 21 retracts the groove 701, the cigarette pack is released, and when the first clamping member 21 extends out of the groove 701, it cooperates with the second clamping member 22 to clamp the cigarette pack and stop it, which can guide the forward movement of the cigarette pack to be straight, which is convenient for the first clamping member 21 and the second clamping member 22 to cooperate and stop, and is convenient for the subsequent cigarette pushing process.

[0061] A fixing frame 102 may also be provided, the fixing frame 102 being connected to the bottom of the bracket 101 , and the bracket 101 being installed on the frame of the conveyor belt 900 through the fixing frame 102 to complete the fixed installation of the bracket 101 .

[0062] The embodiment of the present application further provides a method for adaptive adjustment, which is applied to the above-mentioned adaptive cigarette pack stopping device, and specifically comprises the following steps:

[0063] S1: Determine the existence status of cigarette packets in the moving area 902;

[0064] S2: Determine the movement state of the cigarette pack in the moving area 902;

[0065] S3: When the cigarette pack exists in the moving area 902 and stops moving, the signal processing unit controls the driving element 300 to work; the driving element 300 drives the first abutting member 21 to move in a direction close to the second abutting member 22, and adaptively stops the cigarette pack in the braking area 901;

[0066] S4: When the cigarette pack exists in the moving area 902 and moves normally or the cigarette pack does not exist in the moving area 902, the signal processing unit controls the driving element 300 to stop working, and under the action of the elastic member 500, drives the second abutting member 22 to move in a direction away from the second abutting member 22;

[0067] Among them, an adaptive cigarette pack stopping device and a cigarette pushing device are sequentially arranged along the direction of conveying cigarette packs on the conveyor belt 900. The area on the conveyor belt 900 corresponding to the cigarette pushing device is the moving area 902, and the area on the conveyor belt 900 corresponding to the adaptive cigarette pack stopping device is the braking area 901.

[0068] In this embodiment, in order to enable the cigarette packs to adaptively complete the sorting, arrangement and cycle stopping work on the production line, reduce the manual participation in the process, and reduce the labor intensity of the operators, in this embodiment, a first monitoring sensor and a second monitoring sensor are arranged on the conveyor belt 900 to monitor the state of the cigarette packs in the moving area 902. During the transportation process of the conveyor belt 900, the cigarette packs will pass through the guiding area, the braking area 901 and the moving area 902 in sequence. The guiding area is located upstream of the braking area 901, and the adaptive cigarette pack stopping device is arranged in the braking area 901. One end of the moving area 902 is connected to the braking area 901, and the first monitoring sensor is arranged at the connection. The other end of the moving area 902 is the tail end of the conveyor belt 900, and a blocking block is arranged at the tail end. The second monitoring sensor is arranged on the blocking block. After the cigarette pack is transported to the moving area 902 and stops moving by contacting the blocking block, a cigarette pushing device will transfer the cigarette pack in the moving area 902 to the subsequent conveyor belt 900. The first monitoring sensor and the second monitoring sensor monitor the status of the cigarette pack on the conveyor belt 900, and then control the operation of the adaptive cigarette pack stopping device and perform adaptive adjustment.

[0069] The second monitoring sensor monitors the existence status of the cigarette pack in the moving area 902. When the cigarette pack is transported to the blocking block by the conveyor belt 900, the cigarette pack abuts against the blocking block and stays in the moving area 902. The second monitoring sensor will obtain a signal of the existence of the cigarette pack. When the cigarette pack staying in the moving area 902 is transferred to the subsequent conveyor belt 900, a vacant space will appear in the moving area 902, and the second monitoring sensor will obtain a signal of the non-existence of the cigarette pack.

[0070] The first monitoring sensor monitors the movement state of the cigarette pack in the moving area 902. When the cigarette pack is transported from the braking area 901 to the moving area 902 via the conveyor belt 900, the first monitoring sensor obtains a signal that the cigarette pack is moving. When the cigarette pack is abutted against the blocking block and stays in the moving area 902, the first monitoring sensor obtains a signal that the cigarette pack has stopped moving.

[0071] When it is monitored that the cigarette pack exists in the moving area 902 and stops moving, it means that the cigarette pack has abutted against the blocking block and stayed in the moving area 902. The cigarette pack in the moving area 902 can be transferred. In order to prevent the cigarette pack in the braking area 901 from moving with the conveyor belt 900 and contacting the transferred cigarette pack or the cigarette pushing device to cause the cigarette pack to be squeezed, the signal processing unit will control the drive element 300 to work after receiving the signal that the cigarette pack exists and stops moving, and then adaptively stop the cigarette pack in the braking area 901.

[0072] When it is detected that there are no cigarette packs in the moving area 902, it means that the cigarette packs in the moving area 902 have been transferred to the subsequent conveyor belt 900, and there is a vacant space in the moving area 902. The signal processing unit controls the driving element 300 to stop working so that the cigarette packs in the braking area 901 end the stop and move to the moving area 902. When it is detected that there are cigarette packs in the moving area 902 and they move normally, it means that the cigarette packs are being transported from the braking area 901 to the moving area 902. The signal processing unit will control the driving element 300 to stop working so that the cigarette packs can move normally with the conveyor belt 900.

[0073] The existence status and movement status of the cigarette pack in the moving area 902 are monitored by the first monitoring sensor and the second monitoring sensor, and the acquired monitoring signal is fed back to the signal processing unit, so that the signal processing unit can regulate the operation of the driving element 300 according to the real-time status of the cigarette pack, so as to realize adaptive adjustment of the working process of the adaptive cigarette pack stopping device.

[0074] Preferably, the first monitoring sensor and the second monitoring sensor are both through-beam photoelectric sensors. The first monitoring sensor is located at the connection between the braking area 901 and the moving area 902. The light beam emitted by the transmitter of the first monitoring sensor is irradiated on the conveyor belt 900 at the connection. When the cigarette pack moves from the braking area 901 to the moving area 902, the light beam emitted by the transmitter of the first monitoring sensor will be blocked by the cigarette pack. At the same time, as the color of the cigarette pack pattern irradiated by the light beam changes, the intensity of light in the receiver of the first monitoring sensor will continue to change, thereby judging that the cigarette pack is in a moving state at this time. When the cigarette pack abuts against the blocking block and stays in the moving area 902, the light beam emitted by the transmitter of the first monitoring sensor will be blocked by the cigarette pack. At the same time, since the cigarette pack is not moving, the intensity of light in the receiver of the first monitoring sensor will remain unchanged, thereby judging that the cigarette pack is in a stopped state at this time.

[0075] The second monitoring sensor is located on the blocking block, and the light beam emitted by the transmitter of the second monitoring sensor is irradiated on the conveyor belt 900 adjacent to the blocking block. When the cigarette pack abuts the blocking block and stays in the moving area 902, the light beam emitted by the transmitter of the second monitoring sensor is blocked by the cigarette pack abutting the blocking block, and the intensity of light in the receiver of the second monitoring sensor changes, thereby determining that there is a cigarette pack in the moving area 902 at this time; when the cigarette pack staying in the moving area 902 is transferred to the subsequent conveyor belt 900, the light beam emitted by the transmitter of the second monitoring sensor will directly irradiate the conveyor belt 900, and the intensity of light in the receiver of the second monitoring sensor changes accordingly, thereby determining that there is no cigarette pack in the moving area 902 at this time.

[0076] Step S3 specifically includes the following steps:

[0077] S31: obtaining a real-time pressure value of the cigarette pack being squeezed and stopped;

[0078] S32: Determine the pressure difference between the real-time pressure value and the preset pressure threshold;

[0079] S33: When the pressure difference is greater than the preset pressure difference threshold, the signal processing unit will adjust the movement stroke of the driving element 300.

[0080] In the present embodiment, in order to allow cigarette packs of different specifications and sizes to enter the braking area 901 for stopping, the working stroke of the driving element 300 can be automatically adjusted according to the specific size of the cigarette pack, and the distance and force between the first clamping member 21 and the cigarette pack can be controlled to avoid the situation where the first clamping member 21 moves too short a distance and does not contact the cigarette pack, resulting in failure of stopping, or the first clamping member 21 moves too long, causing the cigarette pack to be squeezed and deformed. In the present embodiment, the first pressure sensor and the second pressure sensor are used to collect the real-time pressure value of the squeezed cigarette pack, and convert the real-time pressure value into an electrical signal and transmit it to the signal processing unit. The signal processing unit then controls the working stroke of the diaphragm clamping cylinder through a control valve to regulate the stroke of the first clamping member 21.

[0081] After obtaining the real-time pressure value of the cigarette pack being squeezed, determine the pressure difference between the real-time pressure value and the preset pressure threshold, wherein the preset pressure threshold is characterized by the critical pressure at which the first clamping member 21 squeezes and deforms the cigarette pack. After determining the above-mentioned pressure difference, determine whether the pressure difference is greater than the preset pressure difference threshold, and the preset pressure difference threshold is characterized by the corresponding extrusion pressure value range at which the cigarette pack can still slide when squeezed to the point where the cigarette pack is about to be deformed.

[0082] When the pressure difference is greater than the preset pressure difference threshold, it means that the stroke value of the first clamping member 21 is too large, so the working stroke of the diaphragm clamping cylinder is reduced, so that the first clamping member 21 stops sliding or retreats a distance.

[0083] Exemplarily, the first pressure sensor and the second pressure sensor feed back the collected real-time pressure value data of the squeezed cigarette pack to the signal processing unit, and the signal processing unit compares the fed-back real-time pressure value with the preset pressure value and calculates the pressure difference. When the pressure difference is greater than the preset pressure difference threshold, the signal processing unit controls the air intake of the diaphragm clamping cylinder air port through the control valve to adjust the movement stroke of the output end of the diaphragm clamping cylinder, thereby controlling the stroke of the first clamping member 21.

[0084] Step S31 is preferably implemented through the following steps:

[0085] S311: Obtaining a real-time first contact pressure value on the first pressing member 21 when the first pressing member 21 contacts the cigarette pack;

[0086] S312: After the first contact pressure value is obtained, a real-time second contact pressure value on the second abutting member 22 is obtained when the cigarette pack contacts the second abutting member 22;

[0087] S313: After the second contact pressure value is obtained, a third contact pressure value on the first abutting member 21 is obtained again in real time;

[0088] S314: Determine the third contact pressure value as the real-time pressure value, and feed back the real-time pressure value to the signal processing unit.

[0089] In this embodiment, in order to obtain the effective real-time pressure value when the cigarette pack is squeezed during the process, and then for the signal processing unit to determine whether it is necessary to adjust the working stroke of the driving element 300, so as to achieve adaptive adjustment when stopping cigarette packs of different sizes, the first pressure sensor is connected to the first clamping member 21, and the pressure sensitive element of the first pressure sensor is in contact with the body of the first clamping member 21. When the first clamping member 21 contacts the cigarette pack and starts to push the cigarette pack, the first pressure sensor collects the real-time first contact pressure value on the first clamping member 21 when the first clamping member 21 contacts the cigarette pack.

[0090] The second pressure sensor is connected to the second pressing member 22, and the pressure sensitive element of the second pressure sensor is in contact with the body of the second pressing member 22. When the cigarette pack is pushed by the first pressing member 21 to contact with the second pressing member 22, the second pressure sensor collects the real-time second contact pressure value on the second pressing member 22 when the cigarette pack is in contact with the second pressing member 22.

[0091] When the second pressure sensor detects a pressure value change on the second clamping member 22, it means that the two ends of the cigarette pack have respectively contacted the first clamping member 21 and the second clamping member 22. At this time, the pressure value change caused by the first clamping member 21 continuing to squeeze the cigarette pack is the effective real-time pressure value of the cigarette pack being squeezed. Therefore, after obtaining the second contact pressure value, the first pressure sensor again obtains the real-time third contact pressure value on the first clamping member 21.

[0092] In this embodiment, the effective real-time pressure value when the cigarette pack is squeezed is characterized by the pressure value generated by the squeeze when the cigarette pack is clamped and cannot move further, that is, the third contact pressure value. Therefore, the third contact pressure value is determined as the real-time pressure value, and the real-time pressure value is fed back to the signal processing unit to determine whether the working stroke of the driving element 300 needs to be adjusted to achieve adaptive adjustment.

[0093] In one example, the following steps are also included:

[0094] Ⅰ: monitoring the pressure fluctuation on the base 401 when the base 401 is pushed by the driving element 300 and abuts against the limit assembly 600;

[0095] Ⅱ: Determine whether the pressure value in step Ⅰ exceeds the preset pressure value fluctuation range;

[0096] III: When the pressure value exceeds the preset pressure value fluctuation range, the signal processing unit will control the driving element 300 to stop working.

[0097] Step I, step II and step III are the processes by which the limiting component 600 realizes limiting protection.

[0098] In order to avoid the failure of obtaining the real-time pressure value of the cigarette pack being squeezed and stopped during the stopping process, the driving element 300 continues to work to push the first clamping member 21 to squeeze the cigarette pack, thereby causing the cigarette pack to be deformed due to excessive squeezing and even causing the conveyor belt 900 to be blocked, affecting the normal operation of the production line. In this embodiment, a limit screw and a third pressure sensor are provided, wherein the limit screw is installed on the bracket 101, and when the base 401 moves a distance exceeding the limited range, it will abut against the limit screw, and the third pressure sensor is provided on the base 401 to monitor the pressure value fluctuation on the base 401.

[0099] In this embodiment, when the driving element 300 works and pushes the base 401 to start moving, the third pressure sensor will monitor the change in the pressure value on the base 401. As the pushing process continues, the pressure value will fluctuate within a certain range. If the base 401 moves a distance exceeding the specified range and abuts against the limit screw, the limit screw will apply pressure to the base 401 in the opposite direction of its movement, and the pressure value will change accordingly.

[0100] After monitoring the pressure value fluctuation on the base 401, determine whether the pressure value fluctuation exceeds the preset pressure value fluctuation range. The preset pressure value fluctuation range is characterized by the corresponding pressure value fluctuation range generated only by the driving element 300 and the elastic member 500 during the normal pushing of the base 401 by the driving element 300. When the pressure value fluctuation exceeds the preset pressure value fluctuation range, it means that the base 401 is subjected to additional force in addition to the driving element 300 and the elastic member 500 during the pushing of the base 401 by the driving element 300. The additional force may be generated by the abutment between the base 401 and the limit screw, or the contact between the base 401 and other foreign objects. At this time, continuing to operate may pose a safety hazard. After the signal processing unit receives a signal that the pressure value fluctuation exceeds the preset pressure value fluctuation range, it will stop the operation of the driving element 300 and at the same time send a prompt to the operator to adjust the limit stroke or check the device.

[0101] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0102] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0103] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0104] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An adaptive cigarette pack stopping device, characterized in that: include: Mounting frame; A first abutting member, movable relative to the mounting frame; A second abutting member, fixed relative to the mounting frame; A driving element is disposed on the mounting frame and connected to the first abutting member to drive the first abutting member to approach or move away from the second abutting member. When the first abutting member and the second abutting member are close to each other, the cigarette pack can be stopped. When the first abutting member and the second abutting member are away from each other, the cigarette pack can be released. A first pressure sensor, disposed on the first abutting member, for detecting a pressure value between the first abutting member and the cigarette pack; A second pressure sensor, disposed on the second abutting member, for detecting a pressure value between the second abutting member and the cigarette pack; The signal processing unit is electrically connected to the first pressure sensor, the second pressure sensor and the driving element.

2. The adaptive cigarette pack stopping device according to claim 1, characterized in that: It also includes a connecting arm, and the driving element drives the first abutting member to move through the connecting arm.

3. The adaptive cigarette pack stopping device according to claim 2, characterized in that: The connecting arm includes a base and an extension portion, the base cooperates with the driving element, a first hole is provided on the mounting frame, one end of the extension portion is connected to the base, and the other end of the extension portion can movably pass through the first hole and be connected to the first fastening member.

4. The adaptive cigarette pack stopping device according to claim 3, characterized in that: The driving element is a diaphragm clamping cylinder, the output end and base of the diaphragm clamping cylinder abut against each other to drive the first clamping member to approach the second clamping member, and an elastic member is arranged between the mounting frame and the connecting arm to drive the first clamping member away from the second clamping member.

5. The adaptive cigarette pack stopping device according to claim 3, characterized in that: The mounting frame is provided with an adjustable limiting assembly, and the base abuts against the limiting assembly when moving, so as to limit the first abutting member from further approaching the second abutting member.

6. The adaptive cigarette pack stopping device according to claim 5, characterized in that: A third pressure sensor is arranged on the base, and the third pressure sensor is electrically connected to the signal processing unit.

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