A folding device for a packaging machine with a signal triggering component and its working method

Abstract

This invention provides a folding device for a packaging machine with a signal triggering component and its operating method, belonging to the technical field of tobacco production equipment. The folding device includes a first drive shaft and a second drive shaft for connection to the packaging machine. A long-side folding component is mounted on the first and second drive shafts, and a signal triggering component is provided at one end of the long-side folding component. The operating method of the folding device includes the following steps: During packaging machine operation, the long-side folding component folds the transparent paper; when the cigarette pack is improperly positioned, it may cause blockage. During operation, the magnetism of the long-side folding component disengages, causing the spring to open and bringing the detection plate close to the proximity switch, triggering an alarm and stopping the machine; after the blockage is cleared, the magnetism returns, the spring remains compressed, and the signal triggering component resets. This invention solves the problems of difficulty in removing blocked cigarette packs and the delayed stopping of the packaging machine, which can easily cause damage and compromise the effective operating rate of the equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of tobacco production equipment, and more specifically, relates to a folding device for a packaging machine with a signal triggering component and its working method. Background Technology

[0002] In the production process of tobacco cigarettes, after a single pack of cigarettes is produced, it is packaged into a carton, and then a transparent paper is wrapped around the carton. This process is performed by a YB917 type carton outer transparent paper packaging machine. For example, Chinese utility model patent (application number: CN202022578391.9) with announcement number CN213566772U discloses a pre-folding device for packaging the transparent paper of carton cigarettes, including a fixed plate and a left folding mechanism and a right folding mechanism symmetrically arranged at both ends of the fixed plate; both the right folding mechanism and the left folding mechanism include a fixed block, a pushing block and a folding plate that are integrally fixedly connected in sequence; the right folding mechanism and the left folding mechanism are respectively fixedly arranged at both ends of the fixed plate by corresponding fixed blocks. The left and right corner folding mechanisms are fixedly mounted at both ends of the fixed plate by corresponding fixing blocks; the push block is used to place and push the cigarette packs and their transparent paper on the packaging machine; and the corner folding plate at the front end of the push block can pre-fold the transparent paper, thereby ensuring that the transparent paper on the end face of the cigarette pack is unfolded and wrinkle-free before folding, thus solving the problem of wrinkles at the corners of the transparent paper on the end face of the cigarette pack.

[0003] The aforementioned utility model only solves the quality problem of transparent paper packaging. However, in actual production, the original design of the YB917 type transparent paper packaging machine uses a reciprocating linear motion to fold the lower long fold edge of the transparent paper of the cigarette pack. When the pack shape is not square or the pack in the first lifting device is not lifted into place, the rightward-moving long-side folder squeezes the pack, causing blockage. Furthermore, because the original long-side folder lacks overload protection, the packaging machine stops late when blockage occurs. The impact force generated by the original long-side folder squeezing the pack is large, easily causing deformation and damage to the folder. The damaged cigarette packs become stuck in the channel, making removal time-consuming and laborious. Therefore, the existing transparent paper folding device still suffers from the problems of difficulty in removing blocked cigarette packs, delayed machine shutdown leading to damage, and inability to guarantee the effective operating rate of the equipment. Summary of the Invention

[0004] In view of this, the present invention proposes a folding device for a packaging machine with a signal triggering component and its working method, which can solve the problems of difficulty in removing cigarette packs when they are blocked, and the packaging machine's delayed shutdown can easily cause damage and fail to guarantee the effective operating rate of the equipment.

[0005] This invention is implemented as follows:

[0006] A first aspect of the present invention provides a folding device for a packaging machine with a signal triggering component, comprising a first drive shaft and a second drive shaft for connection to the packaging machine, wherein a long-side folding component is mounted on the first drive shaft and the second drive shaft, the first drive shaft and the second drive shaft being used to drive the long-side folding component to reciprocate left and right to complete the folding action of the lower long edge after the transparent paper is applied to the outside of the cigarette pack; a signal triggering component is provided at one end of the long-side folding component for detecting the blockage of the cigarette pack during the folding of the transparent paper.

[0007] The technical advantages of the packaging machine folding device with a signal triggering component provided by this invention are as follows: By setting a long-side folding component and a signal triggering component, when the cigarette pack gets stuck during the folding process of the transparent paper, the movable plate in the long-side folding component is disengaged from its original working position by the resistance of squeezing the cigarette pack and slides out in a direction away from the cigarette pack, separating from the first fixed seat and the second fixed seat. This triggers the signal triggering component, and the proximity switch sends an alarm signal, causing the packaging machine to stop immediately. This solves the problem that delayed stopping of the packaging machine can easily cause deformation and damage to the long-side folding component. In addition, after the packaging machine stops, the movable plate has moved a certain distance away from the direction where the cigarette pack is located, and the damaged cigarette pack can be easily removed. This solves the problem that the damaged cigarette pack is deformed and stuck in the channel, and it is time-consuming and laborious to remove the damaged cigarette pack.

[0008] Based on the above technical solution, the folding device for a packaging machine with a signal triggering component of the present invention can be further improved as follows:

[0009] The long-side folding assembly includes a movable plate, a first fixed base, a second fixed base, a magnet, a first screw, a first magnet pressing block, a second magnet pressing block, a second screw, a third screw, and a first washer.

[0010] The first fixed seat is mounted on the first drive shaft by the third screw and the first washer, and the second fixed seat is mounted on the second drive shaft by the third screw and the first washer; a V-groove guide rail mechanism for positioning and guiding the movable plate is provided at the connection between the movable plate and the first fixed seat and the second fixed seat; the magnet is mounted on the first fixed seat and the second fixed seat away from the cigarette pack by the first screw; the first magnet pressing block is mounted on one end of the movable plate by the second screw, and the second magnet pressing block is mounted on the other end of the movable plate by the second screw.

[0011] Furthermore, the signal triggering assembly includes a detection board base, a detection board rocker arm, a detection board, a cylindrical pin, a second washer, a nut, a spring, a fourth screw, a proximity switch, and a fifth screw;

[0012] The detection plate base is mounted on the first fixed base by the fifth screw. The inner side of the detection plate base is connected to one side of the detection plate rocker arm by the cylindrical pin, the second washer, and the nut, forming a cylindrical hinge constraint. The inner side of the detection plate is connected to the other side of the detection plate rocker arm by the cylindrical pin, the second washer, and the nut, forming a cylindrical hinge constraint. The detection plate base, the two detection plate rockers, and the detection plate form a double rocker arm mechanism. The end of the detection plate near the first magnet pressing block extends outward to form a protrusion, and the first magnet pressing block can abut against the protrusion.

[0013] The spring is V-shaped and is disposed between the detection plate base and the detection plate. One side plate of the spring is mounted on the inner wall of the detection plate base by the fourth screw, and the other side plate abuts against the inner wall of the detection plate. The opening direction of the spring is away from the direction where the first magnetic pressure block is located. The proximity switch is mounted on the packaging machine and the probe of the proximity switch is aligned with the side of the detection plate for detecting the position of the detection plate.

[0014] Furthermore, the end of the first drive shaft has two vertically penetrating first through holes along the axial direction, and the end of the second drive shaft has two vertically penetrating second through holes along the axial direction; the first fixed seat has two first threaded holes adapted to the shape and position of the first through holes, and the second fixed seat has two second threaded holes adapted to the shape and position of the second through holes.

[0015] The two third screws pass through the first washer and the first through hole and are threaded into the two first threaded holes respectively to fix the position of the first fixing seat;

[0016] The two third screws pass through the first washer and the second through hole and are threaded into the two second threaded holes respectively to fix the position of the second fixing seat.

[0017] Furthermore, the diameter of the first through hole is slightly larger than the outer diameter of the third screw thread, and the diameter of the second through hole is slightly larger than the outer diameter of the third screw thread.

[0018] Furthermore, the V-groove guide rail mechanism includes a first V-shaped protrusion and a second V-shaped protrusion machined at both ends of the movable plate; the first fixed seat has a first V-shaped groove machined on the side that mates with the movable plate, and the second fixed seat has a second V-shaped groove machined on the side that mates with the movable plate.

[0019] The beneficial effects of adopting the above-mentioned improved scheme are as follows: By setting the diameter of the first through hole to be slightly larger than the outer diameter of the third screw thread, the position of the first fixed seat can be finely adjusted; by setting the diameter of the second through hole to be slightly larger than the outer diameter of the third screw thread, the position of the second fixed seat can be finely adjusted; by adjusting the positions of the first and second fixed seats, the lower surfaces of the first and second V-shaped protrusions are in contact with the lower surfaces of the first and second V-shaped grooves, and the gap between the upper surfaces of the first and second V-shaped protrusions and the upper surfaces of the first and second V-shaped grooves is 0.01mm. By setting a certain gap in the V-groove guide rail mechanism, the process of the movable plate moving smoothly away from the cigarette bar after the magnetic adsorption effect between the movable plate and the first and second fixed seats is broken can be achieved, avoiding jamming and ensuring the stability of the device operation.

[0020] Furthermore, the V-groove guide rail mechanism also includes pins, which are disposed at both ends of the movable plate and located outside the first V-shaped protrusion and the second V-shaped protrusion; the root of the first V-shaped groove is provided with a first pin groove adapted to the pin, and the root of the second V-shaped groove is provided with a second pin groove adapted to the pin; the first pin groove is designed to be partially through on the side away from the cigarette pack, and the second pin groove is designed to be partially through on the side away from the cigarette pack.

[0021] By setting a pin at one end of the movable plate, a first pin groove is designed at the root of the first V-shaped groove of the first fixed seat. One side of the first pin groove is designed to be partially through. When the smoke is squeezed, the movable plate moves away from the cigarette pack, and the partially through part of the first pin groove acts as a limit to the pin, preventing the movable plate from falling. By setting a pin at the other end of the movable plate, a second pin groove is designed at the root of the second V-shaped groove of the second fixed seat. One side of the second pin groove is designed to be partially through. When the smoke is squeezed, the movable plate moves away from the cigarette pack, and the partially through part of the second pin groove acts as a limit to the pin, preventing the movable plate from falling, thus ensuring the effectiveness of the device operation.

[0022] Furthermore, the magnet is made of neodymium iron boron strong magnet; the first magnet pressing block and the second magnet pressing block are made of iron.

[0023] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting the material of the magnet to be a neodymium iron boron strong magnet, and the materials of the first magnet pressing block and the second magnet pressing block to be iron, the magnetism is used to make the two attract each other, and the magnetic connection is reliable.

[0024] Furthermore, the magnetic attraction between the magnet and the first magnet pressing block and the second magnet pressing block is greater than the compressive elastic force of the spring sheet.

[0025] A second aspect of the present invention provides a method for operating a folding device of a packaging machine with a signal triggering component, wherein operating the above-described folding device of a packaging machine with a signal triggering component includes the following steps:

[0026] S10: The packaging machine is working normally. After the cigarette pack is lifted into place by the lifter, the long side folding assembly moves to the right under the drive of the first drive shaft and the second drive shaft to fold the lower rear long edge of the transparent paper.

[0027] S20: When the shape of the cigarette pack is not square or the cigarette pack in the lifter is not lifted into place, the long side folding component moving to the right will squeeze the cigarette pack and cause blockage. When the resistance to squeezing the cigarette pack is greater than the attraction between the magnet and the first magnet pressing block and the second magnet pressing block, the magnet separates from the first magnet pressing block and the second magnet pressing block. At this time, the magnetic connection between the movable plate and the first fixed seat and the second fixed seat is broken. The movable plate moves away from the cigarette pack, and then the first magnet pressing block moves with the movable plate away from the cigarette pack. The first magnet pressing block no longer pushes the detection plate.

[0028] S30: Under the elastic force of the spring sheet, the detection plate moves and approaches the proximity switch. The proximity switch sends an alarm signal, and the packaging machine stops immediately.

[0029] S40: After the blockage is cleared, the movable plate moves toward the cigarette pack under the magnetic attraction. The magnet re-attracts the first magnet block and the second magnet block, and the magnetic connection between the movable plate and the first fixed seat and the second fixed seat is re-established. The first magnet block pushes the detection plate to overcome the elasticity of the spring sheet, keeping the signal triggering component in a compressed state. The detection plate moves away from the proximity switch, and the packaging machine resets and starts.

[0030] The technical advantages of the working method of the folding device of the packaging machine with signal triggering component provided by the present invention are as follows: The working method of the folding device of the packaging machine with signal triggering component can promptly issue an alarm message and stop the machine immediately when the cigarette packs are blocked, which can solve the problem that delayed stopping can easily cause deformation and damage to the long side folder; and the operation of handling the blocked cigarette packs after stopping the machine is more convenient, which can solve the problem that the damaged cigarette packs are deformed and stuck in the channel, and it is time-consuming and laborious to remove the damaged cigarettes; it has the characteristics of fast response speed and high degree of automation, which can improve the work quality and efficiency of the transparent paper packaging process on the packaging machine.

[0031] Compared with existing technologies, the beneficial effects of the folding device for a packaging machine with a signal triggering component and its working method provided by the present invention are as follows: Firstly, the folding device for a packaging machine with a signal triggering component can stop the machine in time when cigarette packs become blocked during the folding process of the cigarette pack's transparent paper, solving the problem that delayed stopping of the packaging machine can easily cause deformation and damage to the long-side folding device; and after the packaging machine stops, the movable plate is a certain distance away from the location of the cigarette pack, so the damaged cigarette packs can be easily removed, solving the problem that damaged cigarette packs are deformed and stuck in the channel, making it time-consuming and laborious to remove the damaged cigarettes, thus improving the effective operating rate of the equipment; Secondly, the working method of the folding device for a packaging machine with a signal triggering component, while solving the problems of delayed stopping of the packaging machine and inconvenience in removing blocked cigarette packs when cigarette packs become blocked during the folding process of the cigarette pack's transparent paper, also has the characteristics of fast response speed and high degree of automation, which can improve the work quality and efficiency of the transparent paper packaging process on the packaging machine. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an exploded structural diagram of a folding device for a packaging machine with a signal triggering component;

[0034] Figure 2 This is a schematic diagram of the long-side folding device of a packaging machine with a signal triggering component during normal operation.

[0035] Figure 3 This is a schematic diagram of a long-side folding device in the smoke-squeezing state of a packaging machine folding device with a signal trigger component;

[0036] Figure 4 This is an exploded structural diagram of the long-side folding component in a folding device of a packaging machine with a signal triggering component;

[0037] Figure 5 This is an exploded structural diagram of the signal triggering component in a folding device of a packaging machine with a signal triggering component;

[0038] Figure 6 This is a schematic diagram of the cooperation structure between the first fixed seat and the movable plate in a folding device of a packaging machine with a signal triggering component;

[0039] Figure 7 This is a schematic diagram of the cooperation structure between the second fixed seat and the movable plate in a folding device of a packaging machine with a signal triggering component;

[0040] Figure 8 This is a schematic diagram of the signal triggering component of a packaging machine folding device in normal working condition.

[0041] Figure 9 This is a schematic diagram of the signal trigger component of a packaging machine folding device in the smoke-squeezing state.

[0042] Figure 10 A flowchart illustrating the operation of a folding device for a packaging machine with a signal triggering component;

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 1. Packaging machine; 11. First drive shaft; 1101. First through hole; 12. Second drive shaft; 1201. Second through hole; 2. Long side folding assembly; 21. Movable plate; 210. First washer; 2101. First V-shaped protrusion; 2102. Second V-shaped protrusion; 2103. Pin; 22. First fixed seat; 2201. First V-shaped groove; 2202. First pin groove; 2203. First threaded hole; 23. Second fixed seat; 2301. Second V-shaped groove; 23 02. Second pin slot; 2303. Second threaded hole; 24. Magnet; 25. First screw; 26. First magnet clamping block; 27. Second magnet clamping block; 28. Second screw; 29. ​​Third screw; 3. Signal triggering assembly; 31. Detection board base; 310. Fifth screw; 32. Detection board rocker arm; 33. Detection board; 34. Cylindrical pin; 35. Second washer; 36. Nut; 37. Spring; 38. Fourth screw; 39. Proximity switch; 4. Cigarette pack; 5. Transparent paper. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] like Figure 1-9 As shown, the first aspect of the present invention provides a folding device for a packaging machine with a signal triggering component, including a first drive shaft 11 and a second drive shaft 12 for connection to a packaging machine 1. A long-side folding component 2 is mounted on the first drive shaft 11 and the second drive shaft 12. The first drive shaft 11 and the second drive shaft 12 are used to drive the long-side folding component 2 to move back and forth to complete the folding action of the transparent paper 5 on the outside of the cigarette pack 4 and then the long folding edge is lowered. A signal triggering component 3 is provided at one end of the long-side folding component 2 for detecting the blockage of the cigarette pack 4 during the folding process of the transparent paper 5.

[0051] During use, the packaging machine 1 operates normally. The cigarette pack 4 is lifted into position by the lifter. The long-side folding assembly 2 moves to the right under the drive of the first drive shaft 11 and the second drive shaft 12, folding the lower rear long edge of the transparent paper 5. When the cigarette pack 4 is not square or the cigarette pack 4 in the lifter is not lifted into position, the long-side folding assembly 2 moving to the right squeezes the cigarette pack 4, causing a blockage. When the resistance to squeezing the cigarette pack 4 is greater than the attraction between the magnet 24 and the first magnet pressing block 26 and the second magnet pressing block 27, the magnet 24 separates from the first magnet pressing block 26 and the second magnet pressing block 27. The magnetic connection between the movable plate 21 and the first fixed seat 22 and the second fixed seat 23 is broken. The movable plate 21 moves away from the cigarette pack 4, and the first magnet pressing block 26 moves with the movable plate 21 away from the cigarette pack 4. The magnetic block 26 no longer pushes the detection plate 33. Under the elastic force of the spring piece 37, the detection plate 33 moves and approaches the proximity switch 39. The proximity switch 39 issues an alarm signal, and the packaging machine 1 stops immediately. After the packaging machine 1 stops, the movable plate 21 has moved a certain distance away from the cigarette pack 4. At this time, the staff can take out the crushed cigarette pack 4 and move the movable plate 21 a certain distance towards the cigarette pack 4. The magnet 24 re-attracts the first magnetic block 26 and the second magnetic block 27, and the magnetic connection between the movable plate 21 and the first fixed seat 22 and the second fixed seat 23 is re-established. The first magnetic block 26 pushes the detection plate 33 to overcome the elastic force of the spring piece 37, keeping the signal trigger component 3 in a compressed state. The detection plate 33 moves away from the proximity switch 39, resetting and starting the packaging machine 1.

[0052] In the above technical solution, the long-side folding assembly 2 includes a movable plate 21, a first fixed seat 22, a second fixed seat 23, a magnet 24, a first screw 25, a first magnet pressing block 26, a second magnet pressing block 27, a second screw 28, a third screw 29, and a first washer 210.

[0053] The first fixed seat 22 is mounted on the first drive shaft 11 by the third screw 29 and the first washer 210, and the second fixed seat 23 is mounted on the second drive shaft 12 by the third screw 29 and the first washer 210; a V-groove guide rail mechanism for positioning and guiding the movable plate 21 is provided at the connection between the movable plate 21 and the first fixed seat 22 and the second fixed seat 23; the magnet 24 is mounted on the first fixed seat 22 and the second fixed seat 23 away from the end of the cigarette 4 by the first screw 25; the first magnet pressing block 26 is mounted on one end of the movable plate 21 by the second screw 28, and the second magnet pressing block 27 is mounted on the other end of the movable plate 21 by the second screw 28.

[0054] Furthermore, in the above technical solution, the signal triggering component 3 includes a detection board base 31, a detection board rocker arm 32, a detection board 33, a cylindrical pin 34, a second washer 35, a nut 36, a spring 37, a fourth screw 38, a proximity switch 39, and a fifth screw 310.

[0055] The detection plate base 31 is mounted on the first fixed base 22 by the fifth screw 310. The inner side of the detection plate base 31 is connected to one side of the detection plate rocker arm 32 by the cylindrical pin 34, the second washer 35, and the nut 36, forming a cylindrical hinge constraint. The inner side of the detection plate 33 is connected to the other side of the detection plate rocker arm 32 by the cylindrical pin 34, the second washer 35, and the nut 36, forming a cylindrical hinge constraint. The detection plate base 31, the two detection plate rockers 32, and the detection plate 33 form a double rocker mechanism. The end of the detection plate 33 near the first magnet pressing block 26 extends outward to form a protrusion, and the first magnet pressing block 26 can abut against the protrusion.

[0056] The spring 37 is V-shaped and is located between the detection plate base 31 and the detection plate 33. One side plate of the spring 37 is mounted on the inner wall of the detection plate base 31 by the fourth screw 38, and the other side plate abuts against the inner wall of the detection plate 33. The opening direction of the spring 37 is away from the direction where the first magnetic pressure block 26 is located. The proximity switch 39 is mounted on the packaging machine 1 and the probe of the proximity switch 39 is aligned with the side of the detection plate 33 for detecting the position of the detection plate 33.

[0057] In use, in the double rocker mechanism consisting of the detection plate base 31, two detection plate rockers 32, and the detection plate 33, as the detection plate rocker 32 swings, the position of the detection plate 33 relative to the detection plate base 31 changes accordingly, and the position of the detection plate 33 relative to the proximity switch 39 also changes accordingly. When the movable plate 21 is attracted together with the first fixed base 22 and the second fixed base 23 by the magnet 24, the first magnet pressing block 26 pushes the protrusion of the detection plate 33. Under the constraint of the cylindrical hinge, the detection plate 33 swings as a whole and presses against the spring piece 37, overcoming the elastic force of the spring piece 37 to keep the signal triggering component 3 in a compressed state, thereby moving the detection plate 33 away from the spring. When the proximity switch 39 is activated, the packaging machine 1 is operating normally. When the movable plate 21 squeezes the blocked cigarette pack 4, preventing it from moving with the first fixed seat 22 and the detection plate 33, the movable plate 21 separates from the first fixed seat 22 and the second fixed seat 23, overcoming the attraction of the magnet 24. During the process of the signal triggering component 3 moving with the first fixed seat 22, the first magnet pressing block 26 disengages from the protrusion of the detection plate 33 and no longer maintains the pushing force on the detection plate 33. As a result, the detection plate 33 cannot squeeze the spring 37. Under the elastic force of the spring 37, the detection plate 33 moves towards the proximity switch 39 and gets closer to the proximity switch 39.

[0058] Furthermore, in the above technical solution, the end of the first drive shaft 11 has two vertically penetrating first through holes 1101 along the axial direction, and the end of the second drive shaft 12 has two vertically penetrating second through holes 1201 along the axial direction; the first fixed seat 22 has two first threaded holes 2203 that are adapted to the shape and position of the first through holes 1101, and the second fixed seat 23 has two second threaded holes 2303 that are adapted to the shape and position of the second through holes 1201;

[0059] Two third screws 29 pass through the first washer 210 and the first through hole 1101 and are threaded into the two first threaded holes 2203 respectively, for fixing the position of the first fixing seat 22;

[0060] Two third screws 29 pass through the first washer 210 and the second through hole 1201 and are threaded into the two second threaded holes 2303 respectively, for fixing the position of the second fixing seat 23.

[0061] Furthermore, in the above technical solution, the diameter of the first through hole 1101 is slightly larger than the outer diameter of the thread of the third screw 29, and the diameter of the second through hole 1201 is slightly larger than the outer diameter of the thread of the third screw 29.

[0062] Furthermore, in the above technical solution, the V-groove guide rail mechanism includes a first V-shaped protrusion 2101 and a second V-shaped protrusion 2102 machined at both ends of the movable plate 21; the first fixed seat 22 has a first V-shaped groove 2201 machined on the side that cooperates with the movable plate 21, and the second fixed seat 23 has a second V-shaped groove 2301 machined on the side that cooperates with the movable plate 21.

[0063] Furthermore, in the above technical solution, the V-groove guide rail mechanism also includes a pin 2103. The pin 2103 is disposed at both ends of the movable plate 21 and is located outside the first V-shaped protrusion 2101 and the second V-shaped protrusion 2102. The root of the first V-shaped groove 2201 is provided with a first pin groove 2202 that matches the pin 2103, and the root of the second V-shaped groove 2301 is provided with a second pin groove 2302 that matches the pin 2103. The first pin groove 2202 is designed to be partially through on the side away from the cigarette pack 4, and the second pin groove 2302 is designed to be partially through on the side away from the cigarette pack 4.

[0064] Furthermore, in the above technical solution, the material of magnet 24 is neodymium iron boron strong magnet; the materials of the first magnet pressing block 26 and the second magnet pressing block 27 are iron.

[0065] Furthermore, in the above technical solution, the magnetic attraction between the magnet 24 and the first magnet pressing block 26 and the second magnet pressing block 27 is greater than the compressive elastic force of the spring piece 37.

[0066] like Figure 10The diagram shown is a flowchart of a method for operating a folding device for a packaging machine with a signal triggering component, provided by a second aspect of the present invention. Operating the aforementioned folding device for a packaging machine with a signal triggering component specifically includes the following steps:

[0067] S10: Packaging machine 1 is working normally. After the cigarette pack 4 is lifted into place by the lifter, the long side folding assembly 2 moves to the right under the drive of the first drive shaft 11 and the second drive shaft 12 to fold the lower rear long edge of the transparent paper 5.

[0068] S20: When the shape of the cigarette pack 4 is not square or the cigarette pack 4 in the lifter is not lifted into place, the long side folding component 2 moving to the right will squeeze the cigarette pack 4 and cause blockage. When the resistance of squeezing the cigarette pack 4 is greater than the attraction between the magnet 24 and the first magnet pressing block 26 and the second magnet pressing block 27, the magnet 24 will separate from the first magnet pressing block 26 and the second magnet pressing block 27. At this time, the magnetic connection between the movable plate 21 and the first fixed seat 22 and the second fixed seat 23 will be broken. The movable plate 21 will move away from the cigarette pack 4, and then the first magnet pressing block 26 will move away from the cigarette pack 4 along with the movable plate 21. The first magnet pressing block 26 will no longer push the detection plate 33.

[0069] S30: Under the elastic force of the spring sheet 37, the detection plate 33 moves and approaches the proximity switch 39. The proximity switch 39 sends an alarm signal, and the packaging machine 1 stops immediately.

[0070] S40: After the blockage is cleared, under the magnetic attraction, the movable plate 21 moves towards the cigarette pack 4, and the magnet 24 re-attracts the first magnet pressing block 26 and the second magnet pressing block 27. Then, the magnetic connection between the movable plate 21 and the first fixed seat 22 and the second fixed seat 23 is re-established. The first magnet pressing block 26 pushes the detection plate 33 to overcome the elastic force of the spring piece 37 so that the signal trigger component 3 is kept in a compressed state. The detection plate 33 moves away from the proximity switch 39, and the packaging machine 1 is reset and started.

[0071] Specifically, the principle of this invention is as follows: When the packaging machine 1 is running normally, after the cigarette pack 4 is in place, the long side folding assembly 2 moves under the drive of the first drive shaft 11 and the second drive shaft 12 to fold the rear lower long fold edge of the transparent paper 5; when the shape of the cigarette pack 4 is not square or the cigarette pack 4 in the lifting device is not lifted into place, the long side folding assembly 2 moving to the right squeezes the cigarette pack 4, causing a blockage. When the resistance of squeezing the cigarette pack 4 is greater than the attraction between the magnet 24 and the first magnet pressing block 26 and the second magnet pressing block 27, the magnetic connection between the movable plate 21 and the first fixed seat 22 and the second fixed seat 23 is broken, causing the magnet 24 to separate from the first magnet pressing block 26 and the second magnet pressing block 27. The movable plate 21 and the first magnet pressing block 26 move away from the cigarette pack 4. The first magnetic block 26 can no longer maintain its pushing force on the detection plate 33. Under the elastic force of the spring piece 37, the detection plate 33 moves and approaches the proximity switch 39. The proximity switch 39 sends an alarm signal, causing the packaging machine 1 to stop immediately. After the packaging machine 1 stops, the movable plate 21 has moved a certain distance away from the cigarette pack 4. At this time, the staff can take out the crushed cigarette pack 4 and push the movable plate 21 towards the cigarette pack 4. Under the magnetic attraction, the magnet 24 re-attracts the first magnetic block 26 and the second magnetic block 27. The first magnetic block 26 continues to push the detection plate 33 to overcome the elastic force of the spring piece 37, keeping the signal trigger component 3 in a compressed state. The detection plate 33 moves away from the proximity switch 39, and the packaging machine 1 resets and starts.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A folding device for a packaging machine with a signal triggering component, characterized in that, It includes a first drive shaft (11) and a second drive shaft (12) for connecting to a packaging machine (1). A long-side folding assembly (2) is installed on the first drive shaft (11) and the second drive shaft (12). The first drive shaft (11) and the second drive shaft (12) are used to drive the long-side folding assembly (2) to move back and forth to complete the folding action of the long-side folding after the transparent paper (5) is applied to the outside of the cigarette pack (4). A signal triggering assembly (3) is provided at one end of the long-side folding assembly (2) for detecting the blockage of the cigarette pack (4) during the folding of the transparent paper (5). The long-side folding assembly (2) includes a movable plate (21), a first fixed seat (22), a second fixed seat (23), a magnet (24), a first screw (25), a first magnet pressing block (26), a second magnet pressing block (27), a second screw (28), a third screw (29), and a first washer (210); The first fixed seat (22) is mounted on the first drive shaft (11) by the third screw (29) and the first washer (210), and the second fixed seat (23) is mounted on the second drive shaft (12) by the third screw (29) and the first washer (210); a V-groove guide rail mechanism for positioning and guiding the movable plate (21) is provided at the connection between the movable plate (21) and the first fixed seat (22) and the second fixed seat (23); the magnet (24) is mounted on the first fixed seat (22) and the second fixed seat (23) away from the cigarette bar (4) by the first screw (25); the first magnet pressing block (26) is mounted on one end of the movable plate (21) by the second screw (28), and the second magnet pressing block (27) is mounted on the other end of the movable plate (21) by the second screw (28); The signal triggering component (3) includes a detection board base (31), a detection board rocker (32), a detection board (33), a cylindrical pin (34), a second washer (35), a nut (36), a spring (37), a fourth screw (38), a proximity switch (39), and a fifth screw (310); The detection plate base (31) is mounted on the first fixed base (22) by the fifth screw (310). The inner side of the detection plate base (31) is connected to one side of the detection plate rocker arm (32) through the cylindrical pin (34), the second washer (35), and the nut (36) to form a cylindrical hinge constraint. The inner side of the detection plate (33) is connected to the other side of the detection plate rocker arm (32) through the cylindrical pin (34), the second washer (35), and the nut (36) to form a cylindrical hinge constraint. The detection plate base (31), the two detection plate rockers (32) and the detection plate (33) form a double rocker mechanism. The detection plate (33) extends outward from one end near the first magnet pressing block (26) to form a protrusion. The first magnet pressing block (26) can abut against the protrusion.

2. The folding device for a packaging machine with a signal triggering component according to claim 1, characterized in that, The spring (37) is V-shaped and is disposed between the detection plate base (31) and the detection plate (33). One side plate of the spring (37) is mounted on the inner wall of the detection plate base (31) by the fourth screw (38), and the other side plate abuts against the inner wall of the detection plate (33). The opening direction of the spring (37) is away from the direction where the first magnetic pressure block (26) is located. The proximity switch (39) is mounted on the packaging machine (1) and the probe of the proximity switch (39) is aligned with the side of the detection plate (33) for detecting the position of the detection plate (33).

3. A folding device for a packaging machine with a signal triggering component according to claim 2, characterized in that, The first drive shaft (11) has two vertically penetrating first through holes (1101) at its end along the axial direction, and the second drive shaft (12) has two vertically penetrating second through holes (1201) at its end along the axial direction; the first fixed seat (22) has two first threaded holes (2203) that are adapted to the shape and position of the first through holes (1101), and the second fixed seat (23) has two second threaded holes (2303) that are adapted to the shape and position of the second through holes (1201); The two third screws (29) pass through the first washer (210) and the first through hole (1101) and are threaded to the two first threaded holes (2203) respectively, for fixing the position of the first fixing seat (22); The two third screws (29) pass through the first washer (210) and the second through hole (1201) and are threaded into the two second threaded holes (2303) respectively to fix the position of the second fixing seat (23).

4. A folding device for a packaging machine with a signal triggering component according to claim 3, characterized in that, The diameter of the first through hole (1101) is slightly larger than the outer diameter of the thread of the third screw (29), and the diameter of the second through hole (1201) is slightly larger than the outer diameter of the thread of the third screw (29).

5. A folding device for a packaging machine with a signal triggering component according to claim 4, characterized in that, The V-groove guide rail mechanism includes a first V-shaped protrusion (2101) and a second V-shaped protrusion (2102) machined at both ends of the movable plate (21); the first fixed seat (22) has a first V-shaped groove (2201) machined on the side that mates with the movable plate (21), and the second fixed seat (23) has a second V-shaped groove (2301) machined on the side that mates with the movable plate (21).

6. A folding device for a packaging machine with a signal triggering component according to claim 5, characterized in that, The V-groove guide rail mechanism also includes a pin (2103), which is disposed at both ends of the movable plate (21) and located outside the first V-shaped protrusion (2101) and the second V-shaped protrusion (2102); the root of the first V-shaped groove (2201) is provided with a first pin groove (2202) adapted to the pin (2103), and the root of the second V-shaped groove (2301) is provided with a second pin groove (2302) adapted to the pin (2103). The first pin groove (2202) is designed to be partially through on the side away from the cigarette (4), and the second pin groove (2302) is designed to be partially through on the side away from the cigarette (4).

7. A folding device for a packaging machine with a signal triggering component according to claim 6, characterized in that, The magnet (24) is made of neodymium iron boron strong magnet; the first magnet pressing block (26) and the second magnet pressing block (27) are made of iron.

8. A folding device for a packaging machine with a signal triggering component according to claim 7, characterized in that, The magnetic attraction between the magnet (24) and the first magnet block (26) and the second magnet block (27) is greater than the compressive elastic force of the spring piece (37).

9. A method of operating a folding device for a packaging machine with a signal triggering component, comprising operating a folding device for a packaging machine with a signal triggering component as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S10: When the packaging machine (1) is working normally, after the cigarette pack (4) is lifted into place by the lifter, the long side folding assembly (2) moves to the right under the drive of the first drive shaft (11) and the second drive shaft (12) to fold the lower rear long edge of the transparent paper (5); S20: When the shape of the cigarette pack (4) is not square or the cigarette pack (4) in the lifter is not lifted into place, the long side folding component (2) moving to the right will squeeze the cigarette pack (4) and cause blockage. When the resistance of squeezing the cigarette pack (4) is greater than the attraction between the magnet (24) and the first magnet pressing block (26) and the second magnet pressing block (27), the magnet (24) will separate from the first magnet pressing block (26) and the second magnet pressing block (27). At this time, the magnetic connection between the movable plate (21) and the first fixed seat (22) and the second fixed seat (23) will be broken. The movable plate (21) will move away from the cigarette pack (4), and then the first magnet pressing block (26) will move away from the cigarette pack (4) along with the movable plate (21). The first magnet pressing block (26) will no longer push the detection plate (33). S30: Under the elastic force of the spring sheet (37), the detection plate (33) moves, the detection plate (33) approaches the proximity switch (39), the proximity switch (39) issues an alarm signal, and the packaging machine (1) stops immediately; S40: After the blockage is cleared, under the magnetic attraction, the movable plate (21) moves toward the cigarette pack (4), the magnet (24) re-attracts with the first magnet pressing block (26) and the second magnet pressing block (27), and then the magnetic connection between the movable plate (21) and the first fixed seat (22) and the second fixed seat (23) is re-established. The first magnet pressing block (26) pushes the detection plate (33) to overcome the elastic force of the spring piece (37) so that the signal triggering component (3) is kept in a compressed state. The detection plate (33) moves away from the proximity switch (39), and the packaging machine (1) is reset and started.

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