A sealing and cutting device for packing cigarettes in cartons

Abstract

The present invention discloses a sealing and cutting device for packing cigarette strips, which includes a frame, a carrier plate, a cigarette pressing plate, a film placing device, a film fusing device and a cigarette pushing mechanism. The front and rear of the frame are respectively provided with a cigarette strip pushing inlet and a cigarette strip pushing outlet. The film placing device includes a non-powered film feeding mechanism, which can generate resistance to the rotation of the film roll. The carrier plate and the cigarette pressing plate can be lifted and installed in the frame through a lifting mechanism. The film fusing device includes a pressure fusing strip and a fusing assembly. During the packaging process, after the carrier plate and the cigarette pressing plate together with the cigarette strips thereon are lowered, the pressure fusing strip can press the overlapping upper and lower films between the pressure fusing strip and the fusing assembly toward the fusing assembly for direct fusing. The cigarette pushing mechanism is used to push the packed cigarette strips out from the cigarette strip pushing outlet. The present invention has simple operation, short packaging cycle and is not easy to break the film.

Description

Technical Field

[0001] The invention relates to a sealing and cutting device for packing cigarettes in cartons. Background Art

[0002] When cigarette cartons leave the factory, multiple cigarette cartons need to be packaged together for the convenience of logistics distribution, such as sending batches of cigarette cartons from the factory to retail outlets such as canteens. There are several methods in the prior art for wrapping cigarette cartons with film: the first packaging method is to use PE film heat shrinkage to wrap cigarette cartons with film; the second packaging method is to use a wrapping machine to wrap cigarette cartons with film rolls to form stacks for easy transportation (such as the Chinese patent application with patent application number 2017205232023 discloses a film roll packaging machine for cold packaging of cigarette cartons); the third packaging method is to use sealing and cutting packaging equipment to wrap cigarette cartons with film by sealing and cutting.

[0003] For example, a sealing, cutting and packaging machine for cold packaging of carton cigarettes disclosed in Chinese patent application No. 2018213982168 and a sealing, cutting and wrapping machine for cold packaging of carton cigarettes disclosed in Chinese patent application No. 2018213988554 are both packaging equipment that can be used in the third packaging method mentioned above. Both the sealing, cutting and packaging machine and the sealing, cutting and wrapping machine can reduce the amount of film used.

[0004] However, the film feeding structure of the sealing and cutting equipment in the above-mentioned sealing and cutting packaging machine and sealing and cutting and wrapping machine is relatively complex, the film is easily broken during feeding, the welding and cutting structures are complex, the actions are cumbersome, and the packaging action cycle is long. Therefore, the inventor has made innovative improvements to the sealing and cutting equipment as a whole, which not only changed the overall structure, but also changed the overall packaging process. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a sealing and cutting device for packing cigarettes in strips, which has simple operation, short packing cycle and is not easy to break the film.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] A sealing and cutting device for packing cigarettes in strips, comprising a frame, a carrier plate and a cigarette pressing plate, wherein a cigarette pushing inlet and a cigarette pushing outlet are respectively arranged at the front and rear of the frame, and the device is characterized in that it also comprises a film placing device, a film fusing device and a cigarette pushing mechanism; the film placing device comprises an unpowered film feeding mechanism, and the upper and lower film rolls for packing cigarettes in strips are mounted on the unpowered film feeding mechanism of the film placing device, and the unpowered film feeding mechanism can generate resistance to the rotation of the film rolls; the carrier plate and the cigarette pressing plate can be respectively mounted on the frame by a lifting mechanism and can be lifted and lowered It is located between the carton cigarette pushing inlet and the carton cigarette pushing out outlet; the film fusing device includes a compression fusing strip that can move horizontally and a fusing assembly that generates a constant fusing temperature, and the fusing assembly is arranged below the carton cigarette pushing inlet. During the packaging process, after the carrier plate and the cigarette pressing plate together with the carton cigarettes thereon are lowered, the compression fusing strip can press the overlapping upper and lower films between the compression fusing strip and the fusing assembly toward the fusing assembly for direct fusing; the cigarette pushing mechanism is used for pushing the packaged carton cigarettes out from the carton cigarette pushing out outlet.

[0008] An implementation structure of the cigarette moving mechanism is as follows: the cigarette moving mechanism includes a circulation mechanism and a cigarette moving rod installed on the circulation mechanism, and the cigarette moving rod can be driven by the circulation mechanism to circulate over the carrier plate to push the packaged cigarettes on the carrier plate toward and out of the cigarette moving port.

[0009] One implementation structure of the circulation mechanism is: the circulation mechanism includes a circulation motor and two circulation chains respectively located on both sides of the carrier plate, the circulation chain is installed through a circulation sprocket, the circulation sprocket is connected to the circulation motor, and is driven to rotate by the circulation motor, and the two ends of the cigarette removing rod are respectively fixedly connected to the circulation chains on both sides.

[0010] One implementation structure of the fuse assembly is: the fuse assembly includes a heating tube, a heat-conducting column and a heat-insulating layer, one side of the heat-conducting column is provided with an edge protruding outward, the heating tube is arranged in the heat-conducting column, the heating tube is used to keep the heat-conducting column at a constant fuse temperature, the heat-insulating layer is wrapped on the surface of the heat-conducting column, but the heat-insulating layer is provided with a notch at the position corresponding to the edge, and the edge is exposed to the outside.

[0011] Furthermore, the fuse assembly also includes a temperature sensor, and a probe of the temperature sensor is arranged in the heat-conducting column.

[0012] An implementation structure of the film fuse device is as follows: the film fuse device also includes a linear motion mechanism, and the compression fuse strip is installed on the edge of the cigarette pressing plate near the push-in port of the cigarette strips through the linear motion mechanism.

[0013] An implementation structure of the unpowered film feeding mechanism is: the unpowered film feeding mechanism includes an upper film shaft, a lower film shaft, at least one upper transition roller, at least one lower transition roller, an upper shaft sleeve and a lower shaft sleeve adapted to the middle hole of the film roll for cigarette packaging, the upper transition roller and the lower transition roller are used to guide the film, the upper shaft sleeve and the lower shaft sleeve can be rotatably sleeved on the upper film shaft and the lower film shaft respectively, the upper shaft sleeve and the lower shaft sleeve are used to sleeve the film roll, and resistance generating mechanisms are also provided on the upper film shaft and the lower film shaft respectively, the resistance generating mechanisms on the upper film shaft and the lower film shaft are used to generate resistance to the rotation of the upper shaft sleeve and the lower shaft sleeve.

[0014] Furthermore, the unpowered film feeding mechanism also includes an upper spare film shaft and a lower spare film shaft, on which an upper spare shaft sleeve and a lower spare shaft sleeve are rotatably mounted respectively, and the upper spare film shaft and the lower spare film shaft are also used to mount film rolls for cigarette packaging, and resistance generating mechanisms are also respectively provided on the upper spare film shaft and the lower spare film shaft, and the resistance generating mechanisms on the upper spare film shaft and the lower spare film shaft are used to generate resistance to the rotation of the upper spare shaft sleeve and the lower spare shaft sleeve.

[0015] Furthermore, the unpowered film feeding mechanism also includes a reversing device, which is connected to at least one upper transition roller or a lower transition roller to drive the upper transition roller or the lower transition roller to rotate after each packaging is completed, and the direction of rotation is opposite to the extension direction of the film.

[0016] Furthermore, the film placing device also includes a bracket, a slide rail and a slider. The upper film placing shaft, the lower film placing shaft, the upper transition roller, the lower transition roller and the slider are correspondingly installed on the bracket, the slide rail is installed on the frame, and the slider is slidably installed on the slide rail, so that the bracket and the upper film placing shaft, the lower film placing shaft, the upper transition roller and the lower transition roller thereon can be pulled out from the frame of the packaging equipment together or pushed into the frame of the packaging equipment together.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the process of pushing the cigarette cartons from the cigarette cartons pushing entrance into the present invention, there is no need to control the motor to release the film. The film is directly kept in a certain tension state by the resistance generated by the unpowered film feeding mechanism. The film roll automatically rotates under the tension. Since the film feeding mechanism does not generate tension to tension the film all the time, the film weld is not easily broken. After the cigarette cartons are pushed in, the carrier plate and the cigarette pressing plate together with the cigarette cartons thereon are lowered, and the film is directly melted by the film fusing device. Since the film feeding mechanism does not generate tension to tension the film all the time, the film will not be broken from the weld when it is directly melted. After the film is melted, the carrier plate and the cigarette pressing plate together with the cigarette cartons thereon are raised and reset, and the packaged cigarette cartons can be pushed out of the cigarette cartons pushing entrance by the cigarette pushing mechanism. It can be seen that the present invention has a simpler packaging process for cigarette cartons, more stable operation, faster packaging speed, and shorter packaging cycle.

[0019] 2. The cigarette moving mechanism of the present invention uses a circulating moving cigarette moving rod to push the packaged cigarette cartons toward and out of the cigarette cartons outlet. The cigarette moving mechanism does not slip as in belt transmission, and the transportation of cigarette cartons is more stable and faster.

[0020] 3. The film fusing device of the present invention keeps the heat-conducting column at a constant fusing temperature through the heating tube, and isolates the heat through the heat insulation layer to avoid the heat loss on the heat-conducting column as much as possible. During operation, the two overlapping films that pass through are directly pressed against the edge of the heat-conducting column by pressing the fuse bar, and the two overlapping films are melted into two parts, and the two films of the two parts are welded together, so that the film can be directly melted, and the melted films are also welded together, which is suitable for sealing and cutting equipment, and the operation is simpler. Because a constant fusing temperature is generated, instantaneous heating is no longer required, and there is no need to set up a transformer. Closed-loop control can be performed through a temperature controller, which is not easy to burn the heating tube and has stable operation.

[0021] 4. The unpowered film feeding mechanism of the present invention is provided with an upper shaft sleeve and a lower shaft sleeve to cover the film roll for cigarette packaging, and generates resistance to rotation through a resistance generating mechanism. When the cigarette strips are pushed into the sealing and cutting device, the film will be directly pulled, and the film roll will rotate automatically. The resistance generated by the resistance generating mechanism can prevent the film from being too loose during the packaging process. The resistance generating mechanism can also prevent the film roll from rotating randomly, thereby realizing unpowered film feeding and more stable operation.

[0022] 5. The film placing device of the present invention arranges the upper film placing shaft, the lower film placing shaft, the upper transition roller and the lower transition roller on a bracket, and the bracket is slidably installed on the frame of the present invention through a slide rail and a slider. When it is necessary to replace the film roll or to connect the film, the bracket and the upper film placing shaft, the lower film placing shaft, the upper transition roller and the lower transition roller thereon can be pulled out of the frame together, and the film roll can be replaced or the film can be connected outside the frame. The operation is convenient and simple, and can greatly improve the work efficiency, and the film can be better adjusted outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the three-dimensional schematic diagrams of the present invention;

[0024] Figure 2 This is the second stereoscopic schematic diagram of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the present invention after the hidden switch door;

[0026] Figure 4 It is a schematic diagram of the assembly structure of the cigarette pressing plate, the carrier plate and the cigarette moving mechanism of the present invention;

[0027] Figure 5 It is a three-dimensional schematic diagram of the film placing device of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the upper film placing shaft and the upper spare film placing shaft of the film placing device of the present invention;

[0029] Figure 7 is a schematic front view of a thin film fusing device of the present invention;

[0030] Figure 8 It is a schematic diagram of the assembly structure of the thin film fusing device, the carrier plate and the smoke pressing plate of the present invention;

[0031] Fig. 9 It is a schematic diagram of the positional relationship between the fusing device, the carrier plate and the smoke pressing plate when the film is fusing in the present invention;

[0032] Fig.10 is a simplified schematic diagram of packaging cigarette cartons according to the present invention;

[0033] Meaning of reference numerals in the figure:

[0034] 1-film placing device; 1.1-bracket; 1.2-upper film placing shaft; 1.3-upper spare film placing shaft; 1.4-upper transition roller; 1.5-lower film placing shaft; 1.6-lower spare film placing shaft; 1.7-slider; 1.8-slide rail; 1.9-lower transition roller; 1.10-operating handle; 1.11-rotating rod; 1.12-push-pull handle; 1.13-hand grip hole; 1.14-avoidance space; 1.15-fixed plate; 2-resistance generating mechanism; 2.1-shaft sleeve; 2.2-cone-shaped end; 2.3-handle; 2.4-cam surface; 3-film fusing device; 3.1-linear motion mechanism; 3.2-groove; 3.3-heating tube; 3.4-insulation layer; 3.5-heat-conducting column; 3.6-temperature sensor; 3.7-fixed frame; 3.8-edge; 3.9-compression fuse strip; 3.10-mounting seat; 3.11-fuse space; 3.12-mounting slot; 3.13-notch; 4-frame; 4.1-inlet for pushing cigarette cartons; 4.2-outlet for pushing cigarette cartons; 5-opening and closing door; 6-lower film roll; 6.1-lower film; 7-upper film roll; 7.1-upper film; 8-carrier plate; 8.1-pulley; 8.2-connecting strip; 8.3-cylinder spring; 9-cigarette pressing plate; 9.1-vertical plate; 9.2-lifting sprocket; 9.3-lifting chain; 9.4-lifting motor; 10-cigarette cartons; 11-cigarette removing mechanism; 11.1-circulating motor; 11.2-circulating chain; 11.3-circulating sprocket; 11.4-cigarette removing rod; 12-roller; 13-movement trajectory of cigarette removing rod. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with embodiments.

[0036] like Figures 1 to 3 The sealing and cutting device for packing cigarette cartons shown in the figure comprises a frame 4, a carrier plate 8, a cigarette pressing plate 9, a film placing device 1, a film fusing device 3 and a cigarette moving mechanism 11. The carrier plate 8, the cigarette pressing plate 9, the film placing device 1, the film fusing device 3 and the cigarette moving mechanism 11 are all mounted on the frame 4. The front and rear of the frame 4 are respectively provided with a cigarette carton pushing inlet 4.1 and a cigarette carton pushing outlet 4.2.

[0037] The carrier plate 8 and the cigarette pressing plate 9 are respectively installed in the frame 4 by a lifting mechanism and can be lifted and lowered. They are located between the cigarette carton pushing inlet 4.1 and the cigarette carton pushing outlet 4.2. The cigarette pressing plate 9 is located above the carrier plate 8 and is used to press the cigarette carton 10 onto the carrier plate 8.

[0038] like Figure 4As shown, a more specific installation structure of the smoke pressing plate 9 is as follows: a lifting mechanism for installing the smoke pressing plate 9 includes a lifting motor 9.4 and two lifting chains 9.3. A vertical plate 9.1 is provided on the top of the smoke pressing plate 9, and the vertical plate 9.1 can be slid up and down on the frame 4 through a vertical slide rail. The two lifting chains 9.3 are respectively installed on both sides of the vertical plate 9.1 through lifting sprockets 9.2. The lifting motor 9.4 is connected to the lifting sprocket, and the lifting motor 9.4 drives the lifting sprocket 9.2 to rotate, thereby driving the lifting chains 9.3 to rotate. The two side edges of the vertical plate 9.1 are respectively fixedly connected to the two lifting chains 9.3, so that the vertical plate 9.1 and the smoke pressing plate 9 are driven to rise and fall through the lifting chains 9.3.

[0039] like Figure 4 As shown, a more specific installation structure of the carrier plate 8 is as follows: the lifting mechanism for installing the carrier plate 8 includes four cylinder springs 8.3 and four connecting strips 8.2, the cylinder spring 8.3 is fixed vertically downward on the frame 4, the four cylinder springs 8.3 are correspondingly distributed at the four corners of the carrier plate 8, the four connecting strips 8.2 are respectively arranged corresponding to the four cylinder springs 8.3, one end of the connecting strip 8.2 is connected to the piston rod of the cylinder spring 8.3, and the other end is connected to the corresponding corner of the carrier plate 8 after bypassing two pulleys 8.1, and the direction of the force acting on the carrier plate 8 by the connecting strip 8.2 is changed by the pulley 8.1, and the direction of the force acting on the carrier plate 8 by the connecting strip 8.2 is upward. During packaging, the cigarette cartons 10 will be located between the cigarette pressing plate 9 and the carrier plate 8, and the cigarette cartons 10 will be pressed onto the carrier plate 8 by the cigarette pressing plate 9. Then, the cigarette pressing plate 9 will continue to be driven downward by the lifting motor 9.4, and the cigarette cartons 10 and the carrier plate 8 will be pushed downward together. At this time, the cylinder spring 8.3 is stretched. Afterwards, when the lifting motor 9.4 drives the cigarette pressing plate 9 to rise, under the tension of the cylinder spring 8.3, the carrier plate 8 and the cigarette cartons 10 thereon will rise accordingly.

[0040] The cigarette pushing mechanism 11 is used to push the packed cigarette cartons on the carrier plate 8 out from the cigarette cartons pushing port 4.2. Figure 4 As shown, the cigarette moving mechanism 11 of this embodiment includes a circulation mechanism and a cigarette moving rod 11.4 installed on the circulation mechanism. The cigarette moving rod 11.4 can be driven by the circulation mechanism to circulate over the carrier plate 8 to push the packaged cigarette cartons on the carrier plate 8 toward and out of the cigarette carton ejection port 4.2.

[0041] The specific scheme of the circulation mechanism is as follows: it includes a circulation motor 11.1 and two circulation chains 11.2 respectively located on both sides of the carrier plate 8, the circulation chain 11.2 is installed through a circulation sprocket 11.3, the circulation sprocket 11.3 is connected to the circulation motor 11.1, and is driven to rotate by the circulation motor 11.1 to drive the circulation chain 11.2 to rotate, and the two ends of the cigarette removing rod 11.4 are respectively fixedly connected to the circulation chains 11.2 on both sides, so that the cigarette removing rod 11.4 is driven to circulate through the circulation chain 11.2.

[0042] The film placing device 1 comprises an unpowered film feeding mechanism, and the upper and lower film rolls 7 and 6 for strip cigarette packaging are mounted on the unpowered film feeding mechanism of the film placing device 1, and the unpowered film feeding mechanism can generate resistance to the rotation of the film rolls.

[0043] The specific structure of the unpowered film feeding mechanism is as follows: Figure 5 and Figure 6 As shown, it comprises an upper film placing shaft 1.2, an upper standby film placing shaft 1.3, a lower standby film placing shaft 1.6, a lower film placing shaft 1.5, three upper transition rollers 1.4 and three lower transition rollers 1.9.

[0044] The upper film-laying shaft 1.2 and the upper standby film-laying shaft 1.3 are located at the upper part of the frame 4 and are used for installing the upper film roll 7. The lower standby film-laying shaft 1.6 and the lower film-laying shaft 1.5 are located at the lower part of the frame 4 and are used for installing the lower film roll 6. The three upper transition rollers 1.4 and the three lower transition rollers 1.9 are sequentially arranged on the extension paths of the upper film 7.1 and the lower film 6.1 and are used for guiding the film so that it extends smoothly to the cigarette strip push-in port 4.1 in the middle of the sealing and cutting equipment.

[0045] Axle sleeves 2.1 are rotatably mounted on the upper film-laying shaft 1.2, the upper spare film-laying shaft 1.3, the lower film-laying shaft 1.5 and the lower spare film-laying shaft 1.6. The shaft sleeves 2.1 are respectively the upper shaft sleeve, the upper spare shaft sleeve, the lower shaft sleeve and the lower spare shaft sleeve. The upper shaft sleeve, the upper spare shaft sleeve, the lower shaft sleeve and the lower spare shaft sleeve are all adapted to the middle hole of the film roll for cigarette packaging and are used to mount the film roll for cigarette packaging. During use, the upper shaft sleeve, the upper spare shaft sleeve, the lower shaft sleeve and the lower spare shaft sleeve are all equipped with film rolls. When the film roll on the upper shaft sleeve or the lower shaft sleeve is used up, the head section of the film roll on the upper spare shaft sleeve or the lower spare shaft sleeve can be docked with the tail section of the film roll on the upper shaft sleeve or the lower shaft sleeve, thereby reducing the film changing time and the number of film changing times.

[0046] Resistance generating mechanisms are respectively provided on the upper film shaft 1.2, the upper spare film shaft 1.3, the lower film shaft 1.5 and the lower spare film shaft 1.6. The resistance generating mechanisms 2 of the upper film shaft 1.2, the upper spare film shaft 1.3, the lower film shaft 1.5 and the lower spare film shaft 1.6 are used to generate resistance to the rotation of the upper shaft sleeve, the upper spare shaft sleeve, the lower shaft sleeve and the lower spare shaft sleeve. The size of the generated resistance depends on the usage.

[0047] The resistance generating mechanism 2 of this embodiment is a tensioner that can generate tension on both ends of the shaft sleeve to hinder the rotation of the shaft sleeve. The tensioner is a conventional device, such as Figure 6 As shown, the tensioner is provided with frustoconical end caps 2.2 at both ends of the shaft sleeve, the frustoconical end cap 2.2 at the inner end is fixedly mounted on the film-releasing shaft, and the frustoconical end cap 2.2 at the outer end is movably mounted on the film-releasing shaft, and the two ends of the shaft sleeve 2.1 respectively abut against the conical surfaces of the frustoconical end cap 2.2, and a rotatable handle 2.3 is provided at the outer end of the film-releasing shaft, and a cam surface 2.4 is provided at the end of the frustoconical end cap 2.2 of the handle 2.3 close to the outer end, and the cam surface 2.4 is used to press the frustoconical end cap 2.2 at the outer end to generate tension on the end of the shaft sleeve 2.1 through the conical surface, thereby generating a certain resistance to the rotation of the shaft sleeve 2.1.

[0048] The resistance generating mechanism 2 may be a conventional rotary damper in addition to a tensioner, which generates resistance to the rotation of the shaft sleeve. The resistance generating mechanism may also be other mechanisms that can generate resistance to the rotation of the shaft sleeve.

[0049] In order to prevent the film from becoming too loose after a packing of cigarette cartons, the unpowered film feeding mechanism is further provided with a reversing device, which is connected to the upper transition roller 1.4 near the middle of the sealing and cutting device, and drives the upper transition roller 1.4 to rotate after each packing, and the rotation direction is opposite to the extension direction of the film, so as to appropriately tighten the loose film in the middle. The reversing device of this embodiment is a motor, and the motor directly drives the upper transition roller to rotate.

[0050] In order to better realize automation, the unpowered film feeding mechanism is also provided with a photoelectric switch, which will be triggered when the film is about to run out. At this time, the sealing and cutting equipment can obtain the signal that the film on the film roll is about to run out and issue an alarm.

[0051] The unpowered film feeding mechanism generates resistance to rotation through the resistance generating mechanism 2. When the cigarette strips are pushed into the sealing and cutting device, the film will be directly pulled, and the film roll will rotate automatically. The resistance generated by the resistance generating mechanism 2 can prevent the film from being too loose during the packaging process, and the resistance generating mechanism 2 can also prevent the film roll from rotating randomly, thereby realizing unpowered film feeding and more stable operation. The film will not be stretched all the time during operation, and the weld will not be disconnected when the film is welded and cut after the packaging of the cigarette strips is completed. In particular, the connection between the weld between the upper film 7.1 and the lower film 6.1 is relatively unstable when the welding is just completed. Also because the unpowered film feeding mechanism will not stretch the film all the time, the sealing and cutting device can make better improvements on its mechanism for welding and cutting the film, and can realize the method of directly fusing the film using a fuse device. When fusing, the upper film and the lower film are welded together, and there is no need to use a cold cutter to cut as in the sealing and cutting device mentioned in the background technology, which can greatly simplify the structure.

[0052] like Figure 5 As shown, the film placing device 1 of this embodiment also includes a bracket 1.1, a slide rail 1.8 and a slider 1.7. An upper film placing shaft 1.2, an upper spare film placing shaft 1.3 and an upper transition roller 1.4 are installed on the upper part of the bracket 1.1. A lower film placing shaft 1.5, a lower spare film placing shaft 1.6 and a lower transition roller 1.9 are installed on the lower part of the bracket 1.1. An escape space 1.14 is provided in the middle of the bracket 1.1 for evading components in the middle of the packaging equipment.

[0053] This embodiment includes four sliders 1.7 and four slide rails 1.8, of which two sliders 1.7 are fixedly mounted on the front and rear sides of the lower end of the bracket 1.1, and the other two sliders 1.7 are fixedly mounted side by side on the upper end of the bracket 1.1, and the slide rails 1.8 are fixedly mounted on the frame 4 of the packaging equipment corresponding to the sliders 1.7, and the sliders 1.7 are slidably mounted on the slide rails 1.8, so that the bracket 1.1 and the film placing shaft and the transition roller thereon can slide along the slide rails together, that is, they can be pulled out of the frame 4 of the packaging equipment or pushed into the frame 4 of the packaging equipment together. A fixed plate 1.15 is also provided corresponding to the two slide rails 1.8 at the upper end, and the two slide rails at the upper end are mounted on the fixed plate 1.15, and the fixed plate 1.15 is fixedly mounted on the frame 4 of the packaging equipment.

[0054] A push-pull handle 1.12 is provided in the middle of the bracket 1.1. The push-pull handle 1.12 includes a vertical straight plate, and a grip hole 1.13 is provided on the upper part of the straight plate. When in use, workers hold the grip hole 1.13 of the straight plate to facilitate pulling out and pushing in the bracket 1.1.

[0055] The upper and lower parts of the bracket 1.1 are provided with a limiting mechanism, which can lock or limit the bracket on the frame of the packaging equipment, and can also unlock or release the bracket by operating the limiting mechanism. The limiting mechanism of this embodiment includes a rotating rod 1.11, which can be rotatably arranged on the bracket 1.1, an operating handle 1.10 is provided at one end of the rotating rod 1.11, and a lock is provided at the other end. A lock seat is provided on the frame 4 corresponding to the lock, and the rotating rod 1.11 can be rotated by operating the handle 1.10 to connect the lock and the lock seat together, or to unlock the lock from the lock seat. The lock and the lock seat are conventional devices that can realize rotation locking and unlocking, and therefore are not shown in the figure.

[0056] The limiting mechanism may be a mechanism that limits and locks through a limiting platform and a limiting groove, or a mechanism that limits and locks through an electromagnetic device.

[0057] A switch door 5 is provided on the side of the frame of the sealing and cutting equipment corresponding to the bracket, and the slide rail 1.8 is arranged perpendicular to the switch door 5. The push-pull handle 1.12 and the operating handle 1.10 are arranged on the side where the switch door 5 is located. The bracket 4 and the film placing shaft and the transition roller thereon can be pulled out from the switch door together. When it is necessary to replace the film roll or to connect the film, the bracket 4 and the upper film placing shaft, the lower film placing shaft, the upper transition roller and the lower transition roller thereon can be pulled out from the frame of the packaging equipment together, and the film roll can be replaced or the film can be connected outside the frame 4. The operation is convenient and simple, which can greatly improve the work efficiency, and the film can be better adjusted outside.

[0058] like Figure 7 As shown, the film fuse device 3 of this embodiment includes a linear motion mechanism 3.1, a horizontally movable compression fuse strip 3.9 and a fuse assembly that generates a constant fuse temperature. The fuse assembly is arranged below the cigarette push-in port 4.1. During the packaging process, after the carrier plate 8 and the cigarette pressing plate 9 together with the cigarette strips 10 thereon are lowered, the compression fuse strip 3.9 can press the overlapping upper and lower films 7.1 and 6.1 between the compression fuse strip 3.9 and the fuse assembly toward the fuse assembly for direct melting.

[0059] Among them, the fuse assembly includes a heating tube 3.3, a heat-conducting column 3.5, an insulating layer 3.4 and a temperature sensor. The heat-conducting column 3.5 is made of a metal material with good thermal conductivity. One side of the heat-conducting column 3.5 is provided with an outwardly protruding edge 3.8, wherein the cross-section of the edge 3.8 is triangular and protrudes outward to form a sharper part for contacting the film.

[0060] The heating tube 3.3 is inserted into the heat-conducting column 3.5. The heat generated by the heating tube 3.3 is transferred to the heat-conducting column 3.5. The heating tube 3.3 is used to keep the heat-conducting column 3.5 at a constant fusing temperature.

[0061] The heat insulating layer 3.4 is wrapped around the outer surface of the heat conducting column 3.5, but a notch 3.13 is provided at the position of the heat insulating layer 3.4 corresponding to the edge 3.8, and the edge 3.13 is exposed to the outside, so that the edge 3.13 can contact the outer film. The heat insulating layer 3.4 can avoid the heat loss in the heat conducting column 3.5 as much as possible, saving energy, and can also avoid the heat transfer to the surrounding components, which affects the use. The heat insulating layer 3.4 of this embodiment is made of nano heat insulating material.

[0062] The compression fuse strip 3.9 is a silicone strip, which is installed at the movable end of the linear motion mechanism 3.1 and is driven by the linear motion mechanism 3.1 to move linearly. The compression fuse strip 3.9 is arranged corresponding to the edge 3.8, and a fuse space 3.11 for the film to pass through is arranged between the compression fuse strip 3.9 and the edge 3.8. The linear motion mechanism 3.1 drives the compression fuse strip 3.9 to move linearly toward or away from the edge 3.8.

[0063] The fixing frame 3.7 is composed of a plurality of flat plates, and a mounting groove 3.12 is provided on the fixing frame 3.7, the notch of the mounting groove 3.12 faces the compression fuse strip 3.9, and the heating pipe 3.3, the heat-conducting column 3.5 and the heat-insulating layer 3.4 are assembled into one body and installed in the mounting groove 3.12, and the edge 3.8 is located at the notch of the mounting groove 3.12. The heating pipe, the heat-conducting column and the heat-insulating layer assembled into one body can be installed on the sealing and cutting device through the fixing frame 3.7.

[0064] In order to facilitate the installation of the compression fuse strip 3.9, the film fuse device 3 is also provided with a mounting seat 3.10, on which a groove 3.2 is provided, and the compression fuse strip 3.9 is embedded and fixed in the groove 3.2, and the front part of the compression fuse strip 3.9 protrudes from the notch of the groove 3.2. The compression fuse strip 3.2 can be installed on the sealing and cutting device through the mounting seat 3.10.

[0065] The linear motion mechanism 3.1 of this embodiment comprises a cylinder, and the mounting seat 3.10 is connected to the piston rod of the cylinder. The mounting seat 3.10 and the compression fuse strip 3.9 thereon are driven by the cylinder to perform linear motion.

[0066] The probe 3.6 of the temperature sensor is arranged in the heat-conducting column 3.5, and is used to detect the temperature of the heat-conducting column, so as to better control the temperature of the heat-conducting column 3.5.

[0067] like Figure 8 As shown, the fixing frame 3.7 and the heating tube 3.3, the heat-conducting column 3.5 and the heat-insulating layer 3.4 therein are fixed below the cigarette carton pushing inlet 4.1 in the middle of the sealing and cutting device, and the linear motion mechanism 3.1 and the compression fuse strip 3.9 are arranged on the cigarette pressing plate 9, and the compression fuse strip 3.9 is located on the side of the cigarette pressing plate 9 facing the cigarette carton pushing inlet 4.1.

[0068] In order to facilitate the insertion of the cigarette carton 10 from the cigarette carton insertion opening 4.1, two rows of rollers 12 are provided on the bottom surface of the cigarette carton insertion opening in this embodiment. The number of rows of rollers 12 can be determined according to design requirements.

[0069] The operation process of the sealing and cutting device is as follows: before packaging, the upper film-laying shaft 1.2 and the upper standby film-laying shaft 1.3 of the sealing and cutting device are both equipped with an upper film roll 7, and the lower film-laying shaft 1.5 and the lower standby film-laying shaft 1.6 are both equipped with a lower film roll 6, and the upper film 7.1 of the upper film roll 7 and the lower film 6.1 of the lower film roll 6 are both extended to the middle cigarette carton push-in opening 4.1, and are welded together to block the cigarette carton push-in opening 4.1; Fig.10 As shown, when packaging is being performed, the cigarette strip 11.4 is located at the front or back, which will not affect the operation of other components and the pushing in of the cigarette cartons 10. The cigarette cartons 10 to be packaged are pushed in from the cigarette cartons pushing inlet 4.1 in the middle, naturally pulling the upper film 7.1 and the lower film 6.1, and the cigarette cartons 10 slide on the roller 12 and finally enter onto the carrier plate 8, and then the cigarette pressing plate 9 descends and presses on the cigarette cartons 10, and then the cigarette pressing plate 9, the carrier plate 8 and the cigarette cartons 10 thereon continue to descend, as shown in FIG. Fig. 9 As shown, it descends to the position where the compression fuse strip 3.9 corresponds to the edge 3.8 of the heat-conducting column. At this time, the upper film 7.1 and the lower film 6.1 will overlap and pass through the melting space between the compression fuse strip 3.9 and the heat-conducting column. The linear motion mechanism 3.1 is started, and the overlapping upper film 7.1 and the lower film 6.1 in the melting space are pressed toward the edge 3.8 by the compression fuse strip 3.9 until the film is melted. The melted film will be divided into two parts, one of which is the film wrapped in the cigarette strips, and the other is the film connected to the film roll. During the melting process, the ends of the two parts of the film are each welded together. After that, the linear motion mechanism 3.1 is reset, and the cigarette pressing plate 9, the carrier plate 8 and the cigarette strips 10 thereon rise and reset, completing the packaging of the cigarette strips 10. The circulation mechanism is running, driving the cigarette strips 11.4 to pass over the carrier plate 8, and pushing the packaged cigarette strips 10 toward and out of the cigarette strip outlet 4.2. Fig.10 The dotted line in the figure shows the movement track 13 of the cigarette strip 11.4. Finally, the reversing device is operated to properly straighten the film located at the cigarette strip push inlet 4.1.

[0070] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A sealing and cutting device for packing cigarette cartons, comprising a frame, a carrier plate and a cigarette pressing plate, wherein the front and rear of the frame are respectively provided with a cigarette carton pushing inlet and a cigarette carton pushing outlet, characterized in that: It also includes a film placing device, a film fusing device and a cigarette pushing mechanism; the film placing device includes a non-powered film feeding mechanism, and the upper and lower film rolls for packing cigarette strips are mounted on the non-powered film feeding mechanism of the film placing device, and the non-powered film feeding mechanism can generate resistance to the rotation of the film rolls; the carrier plate and the cigarette pressing plate can be respectively installed in the frame by a lifting mechanism, and are located between the cigarette strip pushing inlet and the cigarette strip pushing outlet; the film fusing device includes a horizontally movable compression fusing strip and a fusing assembly that generates a constant fusing temperature, and the fusing assembly is arranged below the cigarette strip pushing inlet. During the packaging process, the carrier plate and the cigarette pressing plate together with their After the cigarette carton is lowered, the compression fuse bar can press the overlapping upper and lower films between the compression fuse bar and the fuse assembly toward the fuse assembly for direct melting; the cigarette pushing mechanism is used to push the packaged cigarette carton out of the cigarette carton ejection port; the fuse assembly includes a heating tube, a heat-conducting column and a heat-insulating layer, one side of the heat-conducting column is provided with an outwardly protruding edge, the heating tube is arranged in the heat-conducting column, the heating tube is used to keep the heat-conducting column at a constant melting temperature, the heat-insulating layer is wrapped on the outer surface of the heat-conducting column, but the heat-insulating layer is provided with a notch at the position corresponding to the edge, and the edge is exposed to the outside.

2. The sealing and cutting device for packing cigarette cartons according to claim 1, characterized in that: The cigarette moving mechanism comprises a circulation mechanism and a cigarette moving rod installed on the circulation mechanism. The cigarette moving rod can be driven by the circulation mechanism to circulate over the carrier plate to push the packaged cigarette cartons on the carrier plate toward and out of the cigarette carton ejection port.

3. The sealing and cutting device for packing cigarette cartons according to claim 2, characterized in that: The circulation mechanism includes a circulation motor and two circulation chains respectively located on both sides of the carrier plate. The circulation chain is installed through a circulation sprocket. The circulation sprocket is connected to the circulation motor and is driven to rotate by the circulation motor. The two ends of the cigarette removing rod are respectively fixedly connected to the circulation chains on both sides.

4. The sealing and cutting device for packing cigarette cartons according to claim 1, characterized in that: The fuse assembly also includes a temperature sensor, and a probe of the temperature sensor is arranged in the heat-conducting column.

5. The sealing and cutting device for packing cigarette cartons according to claim 1, characterized in that: The film fusing device also includes a linear motion mechanism, and the compression fusing strip is installed on the edge of the cigarette pressing plate close to the push-in opening of the cigarette strips through the linear motion mechanism.

6. The sealing and cutting device for cigarette carton packaging according to claim 1, characterized in that: The unpowered film feeding mechanism includes an upper film shaft, a lower film shaft, at least one upper transition roller, at least one lower transition roller, an upper shaft sleeve and a lower shaft sleeve matched with the middle hole of the film roll for cigarette packaging, the upper transition roller and the lower transition roller are used to guide the film, the upper shaft sleeve and the lower shaft sleeve can be rotatably sleeved on the upper film shaft and the lower film shaft respectively, the upper shaft sleeve and the lower shaft sleeve are used to sleeve the film roll, and the upper film shaft and the lower film shaft are also respectively provided with resistance generating mechanisms, the resistance generating mechanisms on the upper film shaft and the lower film shaft are used to generate resistance to the rotation of the upper shaft sleeve and the lower shaft sleeve.

7. The sealing and cutting device for cigarette carton packaging according to claim 6, characterized in that: The unpowered film feeding mechanism also includes an upper spare film putting shaft and a lower spare film putting shaft, on which an upper spare shaft sleeve and a lower spare shaft sleeve are rotatably mounted respectively, and the upper spare film putting shaft and the lower spare film putting shaft are also used for mounting film rolls for cigarette packaging, and resistance generating mechanisms are also respectively provided on the upper spare film putting shaft and the lower spare film putting shaft, and the resistance generating mechanisms on the upper spare film putting shaft and the lower spare film putting shaft are used to generate resistance to the rotation of the upper spare shaft sleeve and the lower spare shaft sleeve.

8. The sealing and cutting device for carton cigarette packaging according to claim 6, characterized in that: The unpowered film feeding mechanism also includes a reversing device, which is connected to at least one of the upper transition rollers or the lower transition rollers to drive the upper transition roller or the lower transition roller to rotate after each packaging is completed, and the rotation direction is opposite to the extension direction of the film.

9. The sealing and cutting device for cigarette carton packaging according to any one of claims 6 to 8, characterized in that: The film placing device also includes a bracket, a slide rail and a slider. The upper film placing shaft, the lower film placing shaft, the upper transition roller, the lower transition roller and the slider are correspondingly installed on the bracket, the slide rail is installed on the frame, and the slider is slidably installed on the slide rail, so that the bracket and the upper film placing shaft, the lower film placing shaft, the upper transition roller and the lower transition roller thereon can be pulled out from the frame of the packaging equipment together or pushed into the frame of the packaging equipment together.

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