A device for unfolding the lower cover of a full-range cigarette carton

Abstract

The present invention discloses a lower cover unfolding device for full-specification cigarette cartons, which includes a gantry, a lifting frame, a screw lift, a lifting motor, a double-direction clamping mechanism, a descending centering mechanism, and a cover unfolding device. First linear guides are symmetrically and fixedly installed on the gantry, and a lifting frame is slidably connected between the first linear guides. Two screw lifts are symmetrically installed on the top of the gantry, and the lifting rods of the two screw lifts are hinged to the lifting frame. The present invention realizes the opening work of the lower covers of cigarette cartons of different sizes, enhances the compatibility of the equipment, and improves the work efficiency. At the same time, in the lower cover unfolding mechanism and the upper cover unfolding mechanism of the present invention, the clamping range of the double-direction clamping mechanism is increased, and the moving pulley and fixed pulley stroke multiple relationship is also adopted in the descending centering mechanism, so that the types of cigarette carton sizes that the two mechanisms can adapt to in the horizontal and vertical directions are increased.

Description

Technical Field

[0001] The invention relates to a lower cover unfolding device for a full-size cigarette box, belonging to the technical field of full-size cigarette box opening. Background Art

[0002] Since the size of standard cigarettes is fixed, the old box openers are designed to accommodate standard cigarettes. With the development of the tobacco industry, various slim cigarettes and special-shaped cigarettes have emerged, which has put forward new functional requirements for box openers. The length, width and height of special-shaped cigarettes are much different from those of standard cigarettes. Traditional box openers are no longer suitable for opening boxes of a wide variety of cigarettes.

[0003] If different sizes of cigarette cases need to be compatible, the box opening mechanism needs to be able to automatically position cigarette cases of different sizes and accurately cut the rubber strips on the cigarette cases to open the lower cover on the cigarette cases. In this way, it is urgent to design a new lower cover unfolding device for all-standard cigarette cases. Summary of the invention

[0004] The object of the present invention is to provide a lower cover unfolding device for cigarette boxes of all specifications, so as to realize the opening of the lower covers of cigarette boxes of different sizes, enhance the compatibility of the equipment and improve the work efficiency.

[0005] The technical solution of the present invention is as follows: a full-standard cigarette box lower cover deployment device, comprising a door frame, a lifting frame, a spiral elevator, a lifting motor, a bidirectional clamping mechanism, a descending centering mechanism and a cover deployment device, a first linear guide rail is symmetrically fixedly installed on the door frame, a lifting frame is slidably connected between the first linear guide rails, two spiral elevators are symmetrically installed on the top of the door frame, and the lifting rods of the two spiral elevators are hinged to the lifting frame, the two spiral elevators are connected by a horizontal transmission shaft, a lifting motor is fixedly installed on one side of one of the spiral elevators, the output shaft of the lifting motor is connected to the input shaft of the spiral elevator through a sprocket mechanism, a bidirectional clamping mechanism and a descending centering mechanism are installed on the lifting frame, and a cover deployment device is installed on the bidirectional clamping mechanism.

[0006] Furthermore, the bidirectional clamping mechanism includes second linear guide rails symmetrically fixed at both ends of the lifting frame, transverse plates are slidably connected to the second linear guide rails at both ends, a clamping arm is fixedly connected to the bottom of the transverse plate, a cover unfolding device is fixedly connected to the lower end of the clamping arm, a cylinder bracket is fixedly installed on the lifting frame and located between the transverse plates at both ends, a long clamping cylinder and a short clamping cylinder are fixedly connected to the cylinder bracket, and the telescopic rods of the long clamping cylinder and the short clamping cylinder are respectively transmission-connected to the transverse plates at both ends.

[0007] Further, the descending centering mechanism includes a horizontal support plate fixedly connected to the lifting frame, a pair of guide sleeves are fixedly installed on the horizontal support plate, a guide column is slidably connected in the guide sleeve, a protective cover is fixedly connected to the lower end of the guide column, a photoelectric detection switch is fixedly installed in the protective cover, a trigger rod corresponding to the photoelectric detection switch is slidably connected to the bottom of the protective cover, a sprocket A is rotatably connected to the top of the horizontal support plate, a sprocket B is rotatably connected to the lifting frame, and a linkage chain is connected between the sprocket A and the sprocket B, one end of the linkage chain is fixedly connected to the protective cover, and the other end is fixedly connected to the door frame.

[0008] Furthermore, a gas spring is fixedly connected to the horizontal support plate, and a telescopic rod of the gas spring passes through the horizontal support plate and is fixedly connected to the top of the protective cover.

[0009] Furthermore, the capping deployment device includes a mounting plate fixedly connected to the clamping arm, a cutter deployment cylinder is fixedly connected to the top of the mounting plate, two slide grooves are fixedly installed in parallel on the upper part of the mounting plate, an upper rack and a lower rack are slidably connected in the two slide grooves, a synchronous gear is rotatably connected on the mounting plate and located between the upper rack and the lower rack, and the synchronous gear is meshed with the upper rack and the lower rack at the same time, a left movable plate and a right movable plate are fixedly connected to the upper rack and the lower rack respectively, and the telescopic rod of the cutter deployment cylinder It is transmission connected to the left movable plate, and a cutter lifting cylinder is symmetrically fixedly installed on the upper ends of the left movable plate and the right movable plate, and a third linear guide is symmetrically fixedly installed on the lower ends of the left movable plate and the right movable plate, a cutter mounting seat is slidably connected on the third linear guide, and the telescopic rod of the cutter lifting cylinder is transmission connected to the cutter mounting seat, a cutter is fixedly connected to the cutter mounting seat, a smoke pressing plate and a suction cup telescopic cylinder are respectively fixedly connected to the lower part of the mounting plate, and a capping suction cup is fixedly connected to the telescopic rod of the suction cup telescopic cylinder.

[0010] Due to the adoption of the above technical solution, the advantages of the present invention are: the present invention realizes the opening of the lower cover of the cigarette box of different sizes, enhances the compatibility of the equipment, and improves the work efficiency. At the same time, the clamping range of the two-way clamping mechanism in the lower cover unfolding mechanism and the upper cover unfolding mechanism of the present invention is increased, and the travel multiple distance relationship of the movable pulley and the fixed pulley is also adopted in the descending centering mechanism, so that the two mechanisms can adapt to more types of cigarette box sizes in the horizontal and vertical directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of the structural schematic diagram of the present invention;

[0012] Figure 2 yes Figure 1 Stereoscopic image of

[0013] Figure 3 yes Figure 1Schematic diagram of the local structure;

[0014] Figure 4 yes Figure 3 Stereoscopic image of

[0015] Figure 5 It is a three-dimensional diagram of the structural schematic diagram of the bidirectional clamping mechanism;

[0016] Figure 6 It is a three-dimensional diagram of the structural schematic diagram of the descending centering mechanism;

[0017] Figure 7 is a three-dimensional diagram of a structural schematic diagram of a cover deployment device;

[0018] Figure 8 is a front view of a schematic structural diagram of a cover deployment device;

[0019] Figure 9 yes Figure 8 Right view of . DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0021] Embodiment of the present invention: The structural diagram of the lower cover deployment device of the full-standard cigarette box is as follows Figures 1 to 4 As shown, it includes a gantry 101, a lifting frame 103, a spiral elevator 104, a lifting motor 105, a bidirectional clamping mechanism 106, a descending centering mechanism 108 and a capping and unfolding device 109. The first linear guide rails 102 are symmetrically fixedly installed on the gantry 101, and the lifting frame 103 is slidably connected between the first linear guide rails 102. Two spiral elevators 104 are symmetrically installed on the top of the gantry 101, and the lifting rods of the two spiral elevators 104 are hinged to the lifting frame 103. The two spiral elevators 104 are connected by a horizontal transmission shaft 107. A lifting motor 105 is fixedly installed on one side of one of the spiral elevators 104, and the output shaft of the lifting motor 105 is connected by a sprocket mechanism to the input shaft of the spiral elevator 104. The bidirectional clamping mechanism 106 and the descending centering mechanism 108 are installed on the lifting frame 103, and the capping and unfolding device 109 is installed on the bidirectional clamping mechanism 106.

[0022] See also Figure 5, the two-way clamping mechanism 106 includes second linear guide rails 1061 symmetrically fixed at both ends of the lifting frame 103. Transverse plates 1062 are slidably connected to the second linear guide rails 1061 at both ends. A clamping arm 1065 is fixedly connected to the bottom of the transverse plate 1062. A cover unfolding device 109 is fixedly connected to the lower end of the clamping arm 1065. A cylinder bracket 1066 is fixedly installed on the lifting frame 103 and between the transverse plates 1062 at both ends. A long clamping cylinder 1063 and a short clamping cylinder 1064 are respectively fixedly connected to the cylinder bracket 1066. The telescopic rods of the long clamping cylinder 1063 and the short clamping cylinder 1064 are respectively in transmission connection with the transverse plates 1062 at both ends.

[0023] See Figure 6 , the descending centering mechanism 108 includes a horizontal support plate 1081 fixedly connected to the lifting frame 103. A pair of guide sleeves 1082 are fixedly installed on the horizontal support plate 1081. A guide post 1083 is slidably connected in the guide sleeve 1082. A protective cover 1088 is fixedly connected to the lower end of the guide post 1083. A photoelectric detection switch 1086 is fixedly installed in the protective cover 1088. A trigger rod 1087 corresponding to the photoelectric detection switch 1086 is slidably connected to the bottom of the protective cover 1088. A sprocket A 1089 is rotatably connected to the top of the horizontal support plate 1081. A sprocket B 1090 is rotatably connected to the lifting frame 103. A linkage chain 1085 is connected between the sprocket A 1089 and the sprocket B 1090. One end of the linkage chain 1085 is fixedly connected to the protective cover 1088, and the other end is fixedly connected to the gantry 101. A gas spring 1084 is also fixedly connected to the horizontal support plate 1081. The telescopic rod of the gas spring 1084 passes through the horizontal support plate 1081 and is fixedly connected to the top of the protective cover 1088.

[0024] See Figures 7 to 9, the capping unfolding device 109 includes a mounting plate 1091 fixedly connected to the clamping arm 1065. A cutter unfolding cylinder 1093 is fixedly connected to the top of the mounting plate 1091. Two sliding grooves 1104 are fixedly installed in parallel on the upper part of the mounting plate 1091. An upper rack 1092 and a lower rack 1099 are respectively slidably connected in the two sliding grooves 1104. A synchronous gear 1096 is rotatably connected on the mounting plate 1091 and between the upper rack 1092 and the lower rack 1099, and the synchronous gear 1096 meshes with both the upper rack 1092 and the lower rack 1099. A left movable plate 1097 and a right movable plate 1095 are respectively fixedly connected to the upper rack 1092 and the lower rack 1099, and the telescopic rod of the cutter unfolding cylinder 1093 is in transmission connection with the left movable plate 1097. Cutter lifting cylinders 1098 are symmetrically fixedly installed at the upper ends of the left movable plate 1097 and the right movable plate 1095. Third linear guide rails 1106 are symmetrically fixedly installed at the lower ends of the left movable plate 1097 and the right movable plate 1095. A cutter mounting seat 1105 is slidably connected on the third linear guide rails 1106, and the telescopic rod of the cutter lifting cylinder 1098 is in transmission connection with the cutter mounting seat 1105. A cutter 1101 is fixedly connected to the cutter mounting seat 1105. A smoke pressing plate 1100 and a suction cup telescopic cylinder 1094 are respectively fixedly connected to the lower part of the mounting plate 1091. A capping suction cup 1102 is fixedly connected to the telescopic rod of the suction cup telescopic cylinder 1094.

[0025] The working principle of the lower capping unfolding mechanism 2 is as follows:

[0026] When the cigarette case reaches the working station of the lower cover unfolding mechanism 2, the lifting motor 105 drives the screw lift 104 to rotate, causing the lowering centering mechanism 108 on the lifting frame 103 to lower until the trigger rod 1087 on the lowering centering mechanism 108 contacts the top of the cigarette case. At this time, the photoelectric detection switch 1086 is triggered and sends a trigger signal to the PLC control system, and the PLC control system starts to orderly control each mechanism to execute actions. At this time, the conveyor line 1 and the lifting motor 105 stop working, so that the cigarette case stays directly below the lower cover unfolding mechanism 2. Then the long clamping cylinder 1063 acts, causing the cover unfolding device 109 on the left side to move closer to the cover unfolding device 109 on the right side until the pressing plates 1100 on the two cover unfolding devices 109 press the upper covers on both sides of the cigarette case from both sides. Then the sucker telescopic cylinder 1094 extends, and the cover sucker 1102 sucks the lower cover of the cigarette case and pulls it out by 5 - 10 mm to form a gap. At this time, the cutter 1101 is at the highest position and is in the central position of the cover unfolding device 109. After the cover sucker 1102 pulls out the lower cover, the cutter lifting cylinder 1098 immediately extends, causing the cutter 1101 to insert into the gap between the lower cover and the cigarette case. At this time, the cutter unfolding cylinder 1093 also extends, causing the two cutters 1101 to separate to both sides and cut the tape between the lower cover and the cigarette case, thus completing the action of unfolding the lower cover.

[0027] In addition, since the lowering centering mechanism 108 is connected to the gantry 101 through the linkage chain 1085, under the action of the sprocket A 1089 and the sprocket B 1090, the lifting frame 103 and the lowering centering mechanism 108 form a travel multiple relationship, that is: the distance that the lifting frame 103 descends is exactly twice the distance that the lowering centering mechanism 108 descends. Since the cover unfolding device 109 is fixed below the lifting frame 103, when the trigger rod 1087 at the lower end of the lowering centering mechanism 108 contacts the top of the cigarette case, the pressing plate 1100 of the cover unfolding device 109 just reaches the position of the upper cover of the cigarette case.

[0028] It should be noted that in order to achieve automatic control, the actions of each motor and cylinder in this application are uniformly controlled by the existing host computer and PLC system.

Claims

1. A full - specification cigarette case lower cover unfolding device, comprising a gantry (101), a lifting frame (103), a screw lift (104), a lifting motor (105), a two - way clamping mechanism (106), a descending centering mechanism (108) and a cover unfolding device (109), characterized in that: A first linear guide rail (102) is symmetrically fixedly mounted on the door frame (101); a lifting frame (103) is slidably connected between the first linear guide rails (102); two spiral elevators (104) are symmetrically mounted on the top of the door frame (101); the lifting rods of the two spiral elevators (104) are hingedly connected to the lifting frame (103); the two spiral elevators (104) are transmission-connected via a horizontal transmission shaft (107); a lifting motor (105) is fixedly mounted on one side of one of the spiral elevators (104); the output shaft of the lifting motor (105) is transmission-connected to the input shaft of the spiral elevator (104) via a sprocket mechanism; a bidirectional clamping mechanism (106) and a descending centering mechanism (108) are mounted on the lifting frame (103); a capping unfolding device (109) is mounted on the bidirectional clamping mechanism (106); the descending centering mechanism (108) comprises a capping unfolding device (109) fixedly connected to the door frame (101); A horizontal support plate (1081) on the lifting frame (103) is fixedly mounted with a pair of guide sleeves (1082) on the horizontal support plate (1081), a guide column (1083) is slidably connected in the guide sleeves (1082), a protective cover (1088) is fixedly connected at the lower end of the guide column (1083), a photoelectric detection switch (1086) is fixedly mounted in the protective cover (1088), and a photoelectric detection switch (1086) is slidably connected to the bottom of the protective cover (1088). A trigger rod (1087) corresponding to (1086) is rotatably connected to a sprocket A (1089) on the top of the horizontal support plate (1081), and is rotatably connected to a sprocket B (1090) on the lifting frame (103), and a linkage chain (1085) is connected between the sprocket A (1089) and the sprocket B (1090), one end of the linkage chain (1085) is fixedly connected to the protective cover (1088), and the other end is fixedly connected to the door frame (101);The capping unfolding device (109) includes a mounting plate (1091) fixedly connected to the clamping arm (1065). A cutter unfolding cylinder (1093) is fixedly connected to the top of the mounting plate (1091). Two chutes (1104) are fixedly installed in parallel on the upper part of the mounting plate (1091). An upper rack (1092) and a lower rack (1099) are respectively slidably connected in the two chutes (1104). A synchronous gear (1096) is rotatably connected on the mounting plate (1091) and between the upper rack (1092) and the lower rack (1099), and the synchronous gear (1096) meshes with both the upper rack (1092) and the lower rack (1099). A left movable plate (1097) and a right movable plate (1095) are respectively fixedly connected to the upper rack (1092) and the lower rack (1099). The telescopic rod of the cutter unfolding cylinder (1093) is in transmission connection with the left movable plate (1097). Cutter lifting cylinders (1098) are symmetrically fixedly installed at the upper ends of the left movable plate (1097) and the right movable plate (1095). Third linear guides (1106) are symmetrically fixedly installed at the lower ends of the left movable plate (1097) and the right movable plate (1095). A cutter mounting seat (1105) is slidably connected to the third linear guide (1106). The telescopic rod of the cutter lifting cylinder (1098) is in transmission connection with the cutter mounting seat (1105). A cutter (1101) is fixedly connected to the cutter mounting seat (1105). A smoke pressing plate (1100) and a suction cup telescopic cylinder (1094) are respectively fixedly connected to the lower part of the mounting plate (1091). A capping suction cup (1102) is fixedly connected to the telescopic rod of the suction cup telescopic cylinder (1094).; 2. The full-specification cigarette case lower cover unfolding device according to claim 1, wherein: The two-way clamping mechanism (106) includes second linear guide rails (1061) symmetrically fixed at both ends of the lifting frame (103). Transverse plates (1062) are slidably connected to the second linear guide rails (1061) at both ends. Clamping arms (1065) are fixedly connected to the bottoms of the transverse plates (1062). A cover unfolding device (109) is fixedly connected to the lower ends of the clamping arms (1065). A cylinder bracket (1066) is fixedly installed on the lifting frame (103) and between the transverse plates (1062) at both ends. A long clamping cylinder (1063) and a short clamping cylinder (1064) are respectively fixedly connected to the cylinder bracket (1066). The telescopic rods of the long clamping cylinder (1063) and the short clamping cylinder (1064) are respectively in transmission connection with the transverse plates (1062) at both ends.

3. The full-product-specification cigarette case lower cover unfolding device according to claim 1, wherein: A gas spring (1084) is also fixedly connected to the horizontal support plate (1081). The telescopic rod of the gas spring (1084) passes through the horizontal support plate (1081) and is fixedly connected to the top of the protective cover (1088).

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