Automatic strapping machine for cigarette case production line

Abstract

The utility model discloses an automatic strapping machine for a cigarette case production line. The automatic strapping machine comprises a rack, a paperboard outlet unit, a strapping unit and a finished product outlet unit. The rack comprises a lower bracket, a positioning backup plate, an upper bracket and a middle plate; the lower support comprises a working platform, two guide grooves transversely formed in the left middle portion of the working platform and a bundling opening formed in the right middle portion of the working platform. The positioning backup plate is fixed to the working platform and located on the front sides of the two guide grooves in parallel. The upper support comprises a top plate and a middle plate which is hung below the top plate and located over the bundling opening. The paperboard outlet unit comprises a paperboard pressing mechanism and a paperboard feeding mechanism; the bundling unit comprises a coated paper placing mechanism, a coated paper feeding mechanism, a coated paper pulling mechanism, a coated paper pressing mechanism, a coated paper cutting mechanism, a paperboard lifting mechanism, a coated paper bending mechanism and a coated paper hot-bonding mechanism; the finished product output unit comprises a finished product output table, a finished product receiving table and a finished product pushing mechanism. The strapping machine is good in strapping quality and high in automation degree.

Description

Technical Field

[0001] This utility model relates to an automated strapping machine for cigarette box production lines. Background Technology

[0002] Before being made into boxes, cigarette outer packaging boxes are printed and cut into small pieces of cardboard at a printing plant. These small pieces of cardboard are semi-finished products. A certain number of these small pieces of cardboard are stacked together and bundled with packaging paper for easy handling and transportation. After these stacks of cigarette cardboard are transferred to the cigarette manufacturing plant, the cigarette production equipment automatically turns them into cigarette boxes and packages the cigarettes.

[0003] Currently, cigarette cardboard stacks used in cigarette production equipment are manually bundled by printing plant workers using kraft paper with a width shorter than the length of the cigarette cardboard. This involves first applying double-sided tape to one end of the kraft paper, then wrapping the kraft paper around the stack, and finally attaching the other end to the tape. Because of this manual bundling, the tightness of the bundling varies from person to person, and the position of the kraft paper after bundling is inconsistent (it should be in the middle of the stack). Furthermore, the bundling efficiency is low. While this method can basically meet the production needs of existing cigarette production equipment, with the upgrading, replacement, and replacement of cigarette production equipment, the production efficiency and automation level are constantly improving. Manual bundling with kraft paper is far from meeting the requirements of automated and high-efficiency production. There are relatively few such devices available in the current technology. Even if some imported equipment can be provided, these devices are complex in structure, very expensive, and difficult to maintain. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide an automated strapping machine for cigarette box production lines, which has the characteristics of compact structure, good safety performance, good strapping quality and high degree of automation.

[0005] The purpose of this utility model is achieved as follows: an automated strapping machine for a cigarette box production line, comprising a frame, a cardboard output unit, a strapping unit, and a finished product output unit;

[0006] The frame includes a lower support, a positioning plate, and an upper support. The lower support includes four support columns, a horizontal support frame fixed between the lower parts of the four support columns, a work platform fixed on the top surface of the four support columns with a notch in the middle of the rear end, and a middle support column fixed between the middle of the front side of the horizontal support frame and the middle of the bottom front side of the work platform. Two guide grooves are opened laterally in the middle left side of the work platform, and a binding opening is opened in the middle right side of the work platform. The positioning plate is fixed on the work platform and is located parallel to the front side of the two guide grooves. The upper support includes six long columns fixed on the work platform, a top plate fixed on the top surface of the six long columns, and a middle plate suspended below the top plate by four short columns and located directly above the binding opening. The width of the middle plate is adapted to the width of a stack of cigarette cardboard.

[0007] The paperboard output unit includes a paperboard pressing mechanism and a paperboard feeding mechanism; wherein...

[0008] The cardboard pressing mechanism is installed on the bottom surface of the top plate and located directly above the two guide grooves, pressing a stack of cigarette box cardboard flat.

[0009] The paperboard feeding mechanism is installed on the working platform and located to the left below the paperboard pressing mechanism. It pushes a stack of cigarette box paperboards that has been flattened to the right to the position of the binding opening.

[0010] The bundling unit includes a coated paper feeding mechanism, a coated paper delivery mechanism, a coated paper pulling mechanism, a coated paper pressing mechanism, a coated paper cutting mechanism, a cardboard lifting mechanism, a coated paper bending mechanism, and a coated paper heat sealing mechanism; wherein...

[0011] The film-dispensing mechanism is installed on the right front side of the lower support;

[0012] The coating paper feeding mechanism is installed on the front right side of the top surface of the working platform, and feeds the coating paper released by the coating paper dispensing mechanism backward by a section.

[0013] The paper-pulling mechanism is installed on the bottom surface of the intermediate plate, corresponding to the paper-feeding mechanism. It first bites the end of the paper-coated material fed by the paper-feeding mechanism, and then pulls the paper-coated material backward so that a section of paper-coated material is located above the stack of cigarette box cardboard.

[0014] The coated paper pressing mechanism is installed on the bottom surface of the top plate and is located directly above the binding opening, pressing the middle part of a section of coated paper located above the cigarette box cardboard stack onto the top surface of the cigarette box cardboard stack;

[0015] The coating paper cutting mechanism is installed at the front end of the coating paper feeding mechanism and cuts off the tail end of a section of coating paper fed by the coating paper feeding mechanism.

[0016] The cardboard lifting mechanism is installed below the working platform corresponding to the binding opening, and lifts the stack of cigarette cardboard until the top surface of the stack of cigarette cardboard contacts the bottom surface of the intermediate plate;

[0017] The coated paper bending mechanism is installed on the bottom surface of the top plate and located on both sides of the coated paper pressing mechanism. First, the coated paper on both sides of the top surface of the cigarette box cardboard stack is bent vertically downwards, and then the coated paper on both sides of the bottom surface of the cigarette box cardboard stack is bent horizontally relative to each other and pressed tightly against the bottom surface of the cigarette box cardboard stack.

[0018] The coated paper hot-pressing mechanism is installed inside the cardboard lifting mechanism to firmly hot-press the middle stacked portion of the coated paper on the bottom surface of the cigarette box cardboard stack, forming a finished cigarette box cardboard stack.

[0019] The finished product output unit includes a finished product output platform, a finished product receiving platform, and a finished product pushing mechanism, wherein...

[0020] The finished product output platform is connected to the notch of the working platform and receives the finished cigarette box cardboard stack pushed out to the right from the binding opening of the next stack of cigarette box cardboard.

[0021] The finished product receiving station is connected to the front end of the finished product output station;

[0022] The finished product pushing mechanism is installed at the rear right end of the work platform, and pushes the stack of finished cigarette box cardboard located on the finished product output platform forward to the finished product receiving platform.

[0023] The aforementioned automated strapping machine for cigarette box production lines includes a paperboard pressing mechanism comprising a paperboard pressing cylinder vertically mounted on the bottom surface of the top plate and a paperboard pressing mechanism mounted on the lower end of the piston rod of the paperboard pressing cylinder.

[0024] The aforementioned automated strapping machine for cigarette box production line includes a paperboard feeding mechanism comprising a left-right rodless cylinder horizontally mounted on the bottom surface of the work platform, a U-shaped connector mounted on the top surface of the slider of the left-right rodless cylinder and extending upward through two guide slots onto the work platform, and a paperboard feeder mounted on the upper right end face of the connector.

[0025] The aforementioned automated strapping machine for cigarette box production lines, among which,

[0026] The unwinding paper mechanism includes two bearing seats that are installed one-to-one in the middle of the central support column and a support column that is supported in the middle of the right front end of the working platform, an unwinding shaft spanning between the two bearing seats, a positioning ring fixed on the unwinding shaft, a tensioning cone fixed on the unwinding shaft, and a roll of coated paper that passes through a core sleeve between the positioning ring and the tensioning cone.

[0027] The film feeding mechanism includes two upper wall plates, a film feeding cylinder, a swing arm, a film feeding drive roller, a film feeding passive roller, and a film feeding roller pressure adjustment mechanism. The two upper wall plates are fixed to the working platform, one on the left and one on the right. Each of the two upper wall plates has a blind hole vertically formed in the center of its top surface, and a through hole perpendicularly communicating with the bottom of the blind hole is formed on the upper surface of each upper wall plate. The film feeding cylinder is hinged to the working platform and located on the left side of the left upper wall plate. One end of the swing arm is fixedly connected to the piston rod end of the film feeding cylinder. The left and right ends of the film feeding drive roller are each mounted on the upper part of the two upper wall plates via one-way bearings, with the extension of the drive roller located on the left upper wall plate. The left end of the small wall panel is also hinged to the other end of the swing arm via a one-way bearing; the left and right ends of the film feeding passive roller are respectively passed through the holes on the two upper small wall panels and are tangential to the upper part of the active roller; the film feeding roller pressure adjustment mechanism includes two pressure plates respectively set on the top surface of the two upper small wall panels, two vertical springs respectively installed in the blind holes of the two upper small wall panels, and two vertical shoulder screws installed in the threaded holes on the two pressure plates and passing through the two vertical springs respectively and then inserted into the radial end holes at both ends of the film feeding passive roller; the end of the film-coated paper pulled out from the film-coated paper roll on the film-coating paper feeding mechanism passes between the film feeding active roller and the film feeding passive roller;

[0028] The coated paper cutting mechanism includes a cutting base plate, a bottom knife, an upper knife, and a coated paper cutting cylinder. The cutting base plate is installed between the rear ends of two upper small wall plates corresponding to the drive roller in the coated paper feeding mechanism. The bottom knife is U-shaped, with two threaded holes on each of its two vertical sides and three bolt holes on the surface of its horizontal blade edge, allowing the bottom knife to be mounted on the rear end of the cutting base plate by three screws. The upper knife is inverted U-shaped, with a vertical groove on each of its two vertical sides and a threaded section below each of the two vertical grooves. The upper blade is mounted on the rear end face of the bottom blade via two pairs of horizontally shouldered screws inserted into two vertical sliding grooves, two pairs of washers fitted onto the two horizontally shouldered screws, and a horizontal spring. The coated paper cutting cylinder is mounted vertically upward on the working platform and located between the front sides of the two upper small wall plates. The piston rod of the coated paper cutting cylinder is connected to two threaded connection holes on the upper blade via a cylinder connecting plate and two screws. A section of coated paper fed by the coated paper feeding mechanism is located between the horizontal blade edge of the bottom blade and the horizontal blade edge of the upper blade.

[0029] The aforementioned automated strapping machine for cigarette box production lines, among which,

[0030] The film-feeding mechanism includes a rodless cylinder seat mounted on the right side of the bottom surface of the intermediate plate, a forward and backward rodless cylinder mounted on the bottom surface of the rodless cylinder seat, and a finger cylinder mounted on the slider of the forward and backward rodless cylinder and opposite to the film-feeding mechanism.

[0031] The aforementioned automated strapping machine for cigarette box production lines, among which,

[0032] The coating paper pressing mechanism includes a coating paper pressing cylinder installed on the bottom surface of the top plate and located above the binding opening of the working platform, and a coating paper pressing plate installed at the lower end of the piston rod of the coating paper pressing cylinder and passing through the pressing plate hole opened on the intermediate plate.

[0033] The coated paper bending mechanism includes two first bending cylinders that are hinged downwards to the bottom surface of the top plate and are located one-to-one with the front and rear sides of the coated paper pressing cylinder; two first bending plates whose inner ends are hinged one-to-one with the front and rear ends of the intermediate plate; two bending cylinder seats that are installed one-to-one with the middle of the inner side of the top surface of the two first bending plates and are hinged one-to-one with the lower end of the piston rod of the two first bending cylinders; two second bending cylinders that are hinged one-to-one with the outer ends of the two bending cylinder seats; and two second bending plates that are hinged one-to-one with the bottom of the two first bending plates and are hinged one-to-one with the piston rod ends of the two second bending cylinders.

[0034] The aforementioned automated strapping machine for cigarette box production lines, among which,

[0035] The cardboard lifting mechanism includes two lower wall plates connected to the bottom surface of the work platform and located correspondingly at the front and rear of the binding opening, a base plate spanning between the lower ends of the two lower wall plates, a lifting cylinder mounted upward on the base plate, a transition plate mounted on the piston rod end of the lifting cylinder, and two lifting plates fixed correspondingly to the front and rear ends of the top of the transition plate.

[0036] The heat-bonding mechanism for coated paper includes a heat-bonding cylinder installed in the middle of the transition plate of the paperboard lifting mechanism and a heat-bonding head installed at the end of the piston rod of the heat-bonding cylinder via a heat insulation plate.

[0037] The aforementioned automated strapping machine for cigarette box production lines further includes a silicone strip installed at the top of the heat-sealing head, wherein the heat-sealing mechanism for coated paper also includes a silicone strip.

[0038] The aforementioned automated strapping machine for cigarette box production line includes a finished product output platform comprising an output platform front wall plate and an output platform rear wall plate connected to the right end of the work platform, two output platform drive rollers spanning between the left side of the output platform front wall plate and the left side of the output platform rear wall plate, several output platform driven rollers spanning between the right side of the output platform front wall plate and the right side of the output platform rear wall plate at intervals, a motor installed on the left side of the output platform rear wall plate and located below the rear end of the two output platform drive rollers, three synchronous pulleys correspondingly installed on the rear end of the two output platform drive rollers and the output shaft of the motor, and a synchronous belt wrapped around the three synchronous pulleys.

[0039] The aforementioned automated strapping machine for cigarette box production line includes a finished product pushing mechanism comprising a finished product pushing cylinder mounted in a front-to-back direction on the right rear end of the work platform via a cylinder seat, and a push plate mounted on the piston rod end of the finished product pushing cylinder.

[0040] The automated strapping machine for cigarette box production lines of this invention has the following features:

[0041] 1. It has a compact structure, reasonable layout, and small footprint, making it not only easy to operate but also safe.

[0042] 2. Stable operation and low failure rate, which can greatly improve the operational stability of the cigarette box cardboard stacking and strapping machine;

[0043] 3. The bundling quality is good, the tightness of the bundled cigarette cardboard stacks is consistent, and the bundling position of the coated paper on the cigarette cardboard stacks is neat and uniform, which well meets the requirements of cigarette production equipment and improves the working efficiency of cigarette production equipment.

[0044] 4. The cardboard feeding unit, bundling unit, and finished product output unit can work together precisely. The entire bundling process does not require manual labor, achieving full automation and improving bundling efficiency. Attached Figure Description

[0045] Figure 1 This is a front view of the automated strapping machine for cigarette box production line according to this utility model;

[0046] Figure 2 yes Figure 1 Left side view;

[0047] Figure 3 yes Figure 1 Top view;

[0048] Figure 4 yes Figure 1 AA direction view in the middle;

[0049] Figure 5 yes Figure 1 BB view in the middle;

[0050] Figure 6 yes Figure 1 CC view in the middle;

[0051] Figure 7 yes Figure 3 DD view in the middle;

[0052] Figure 8 This is a top view of the cardboard feeding mechanism in the automated strapping machine of this utility model;

[0053] Figure 8a yes Figure 8 EE to view;

[0054] Figure 8b yes Figure 8a FF view in the middle;

[0055] Figure 9 This is a schematic diagram of the structure of the film-releasing mechanism in the automated strapping machine of this utility model;

[0056] Figure 10 This is a left-side view of the coated paper feeding mechanism and the coated paper cutting mechanism in the automated strapping machine of this utility model;

[0057] Figure 10a yes Figure 10 Left side view;

[0058] Figure 10b yes Figure 10 Top view;

[0059] Figure 10c This is a schematic diagram of the cutting base plate in the coated paper cutting mechanism;

[0060] Figure 10d This is a schematic diagram of the bottom blade in the coated paper cutting mechanism;

[0061] Figure 10e This is a schematic diagram of the upper blade in the coated paper cutting mechanism;

[0062] Figure 11 This is a left-side view of the film-coating mechanism in the automated strapping machine of this utility model;

[0063] Figure 11a yes Figure 11 The right-side view;

[0064] Figure 12 This is a front view of the coated paper pressing mechanism, cardboard lifting mechanism, coated paper bending mechanism, and coated paper hot-pressing mechanism in the automated strapping machine of this utility model;

[0065] Figure 12a yes Figure 12 Left side view;

[0066] Figure 12b yes Figure 12 GG view in the middle;

[0067] Figure 13 This is a front view of the finished product output platform in the automated strapping machine of this utility model;

[0068] Figure 13a This is a top view of the finished product output platform in the automated strapping machine of this utility model;

[0069] Figure 13b yes Figure 13 Left side view;

[0070] Figure 14 This is a top view of the finished product pushing mechanism in the automated strapping machine of this utility model;

[0071] Figure 14a yes Figure 14 H-direction view in the middle;

[0072] Figure 15a , Figure 15b , Figure 15c and Figure 15d This is a schematic diagram of the strapping process in the automated strapping machine of this utility model. Detailed Implementation

[0073] The present invention will be further described below with reference to the accompanying drawings.

[0074] Please see Figures 1 to 14a The present invention relates to an automated strapping machine for a cigarette box production line, comprising a frame, a cardboard output unit, a strapping unit, and a finished product output unit.

[0075] The frame includes a lower support 1A, a positioning plate 14, and an upper support; wherein, the lower support 1A includes four support columns 11, a horizontal support frame 12 fixed between the lower parts of the four support columns 11, a work platform 10 fixed on the top surface of the four support columns 11 with a notch in the middle of the rear end, and a middle support column 13 fixed between the middle of the front side of the horizontal support frame 12 and the middle of the middle of the front bottom surface of the work platform 10; two guide grooves 101 are opened laterally in the middle left side of the work platform 10, and a binding opening is opened in the middle right side of the work platform 10, the binding opening covering... The system includes a heating head hole 102 and two symmetrically located support openings 103 on the left and right sides of the heating head hole 102; a positioning backing plate 14 is fixed to the work platform 10 and is located parallel to the front of the two guide grooves 101; the upper support includes six long columns 15 fixed to the middle of the top surface of the work platform 10, a top plate 16 fixed to the top surface of the six long columns 15, and a middle plate 17 suspended below the top plate 16 and located directly above the binding opening by four short columns 18, the width of which is adapted to the width of a stack of cigarette cardboard 100. Two start buttons 19 are installed on the left side of the work platform 10.

[0076] The paperboard output unit includes a paperboard pressing mechanism 2A and a paperboard feeding mechanism 2B; wherein,

[0077] The cardboard pressing mechanism 2A is installed on the bottom surface of the top plate 16 and located directly above the two guide grooves 101. The cardboard pressing mechanism 2A includes a cardboard pressing cylinder 21 that is vertically installed on the bottom surface of the top plate 16 via a pad and a cardboard pressing plate 22 installed at the lower end of the piston rod of the cardboard pressing cylinder 21. The cardboard pressing cylinder 21 and the cardboard pressing plate 22 flatten a stack of cigarette box cardboard 100 located on the work platform 10 with its front side resting against the positioning plate 14.

[0078] The paperboard feeding mechanism 2B is installed on the working platform 10 and located on the lower left side of the paperboard pressing mechanism 2A. The paperboard feeding mechanism 2B includes a left-right rodless cylinder 24 that is horizontally installed on the bottom surface of the working platform 10 via a cylinder seat 23, a U-shaped connector 25 that is installed on the top surface of the slider 240 of the left-right rodless cylinder 24 and extends upward through the working platform 10 via two guide grooves 101, and a paperboard feeding mechanism 26 installed on the upper right end face of the connector 25. The left-right rodless cylinder 24 and the paperboard feeding mechanism 26 push the flattened stack of cigarette box paperboard 100 to the right to the position of the binding opening through the left-right rodless cylinder 24 and the paperboard feeding mechanism 26.

[0079] The bundling unit includes a coated paper feeding mechanism 3A, a coated paper delivery mechanism 3B, a coated paper pulling mechanism 4, a coated paper pressing mechanism 5, a coated paper cutting mechanism 6, a cardboard lifting mechanism 7A, a coated paper bending mechanism 8, and a coated paper heat sealing mechanism 7B; among which,

[0080] The coating paper unloading mechanism 3A is installed on the right front side of the lower support 1A; the coating paper unloading mechanism 3A includes two bearings 31 that are installed one-to-one in the middle of the middle support column 13 and a support column 11 that is supported at the right front end of the working platform 10, an unwinding shaft 30 spanning between the two bearings 31, a positioning ring 32a fixed on the unwinding shaft 30, a tensioning cone 32b fixed on the unwinding shaft 30, and a coating paper roll 20 (the coating paper is covered with a film that can become sticky after high temperature) that is sleeved between the positioning ring 32a and the tensioning cone 32b by the core cylinder 3;

[0081] The film-coating mechanism 3B is installed on the front right side of the top surface of the work platform 10. The film-coating mechanism 3B includes two upper wall plates 33, a film-feeding cylinder 34, a swing arm 35, a film-feeding active roller 36a, a film-feeding passive roller 36b, and a film-feeding roller pressure adjustment mechanism. The two upper wall plates 33 are fixed to the work platform 10, one on the left and one on the right. Each of the two upper wall plates 33 has a blind hole vertically formed in the center of its top surface, and each of the two upper wall plates 33 has a hole perpendicular to the bottom of the blind hole on its upper surface. A through-hole is provided; the film feeding cylinder 34 is hinged to the working platform 10 via a base and located on the left side of an upper small wall plate 33; one end of the swing arm 35 is fixedly connected to the piston rod end of the film feeding cylinder 34; the left and right ends of the film feeding drive roller 36a are each mounted on the upper part of the two upper small wall plates 33 via one-way bearings 36, and the left end of the film feeding drive roller 36a extending from the upper small wall plate 33 on the left side is also hinged to the other end of the swing arm 35 via one-way bearings 36; the film feeding passive roller 36b The left and right ends of the film feeding roller 36a are inserted into the holes on the two upper small wall plates 33 and are tangential to each other above the active film feeding roller 36a. The film feeding roller pressure adjustment mechanism includes two pressure plates 37 that are correspondingly set on the top surfaces of the two upper small wall plates 33, two vertical springs 38 that are correspondingly installed in the blind holes of the two upper small wall plates 33, and two radial end holes that are installed in the threaded holes on the two pressure plates 37, pass through the two vertical springs 38 and are inserted into the two ends of the passive film feeding roller 36b. The vertical shoulder screw 39 in the middle; the end of the coated paper 200 pulled out from the coated paper roll 20 on the coated paper feeding mechanism 3A passes between the active film feeding roller 36a and the passive film feeding roller 36b. Through the extension of the piston rod of the film feeding cylinder 34, the swing arm 35 swings up and down. Due to the action of the one-way bearing 36, the active film feeding roller 36a can only rotate clockwise, while the passive film feeding roller 36b rotates counterclockwise, conveying a section of the coated paper 200 so that the subsequent coated paper pulling mechanism 4 can pull the coated paper.

[0082] The coating paper feeding mechanism 4 is installed on the right side of the bottom surface of the intermediate plate 17. The coating paper feeding mechanism 4 includes a rodless cylinder seat 41 connected to the right side of the bottom surface of the intermediate plate 17, a forward and backward rodless cylinder 42 installed on the bottom surface of the rodless cylinder seat 41, and a finger cylinder 43 installed on the slider 420 of the forward and backward rodless cylinder 42 via a bracket 430 and relative to the coating paper feeding mechanism 3B. The forward and backward rodless cylinder 42 causes the finger cylinder 43 to first bite the end of the coating paper 200 fed by the coating paper feeding mechanism 3B, and then the forward and backward rodless cylinder 42 causes the finger cylinder 43 to pull the end of the coating paper 200 backward, so that a section of coating paper 200 is located above the cigarette box cardboard stack 100.

[0083] The coated paper pressing mechanism 5 is installed on the bottom surface of the top plate 16 and located directly above the binding opening. The coated paper pressing mechanism includes a coated paper pressing cylinder 51 installed on the bottom surface of the top plate 16 and located above the binding opening of the working platform 10, and a coated paper pressing plate 52 installed at the lower end of the piston rod of the coated paper pressing cylinder 51 and passing through the pressing plate hole opened on the intermediate plate 10. The coated paper pressing cylinder 51 and the coated paper pressing plate 52 press the middle part of a section of coated paper 200 located above the cigarette box cardboard stack 100 downward to the top surface of the cigarette box cardboard stack 100.

[0084] The coated paper cutting mechanism 6 is installed at the front end of the coated paper feeding mechanism 3B. The coated paper cutting mechanism 6 includes a cutting base plate 61, a bottom knife 62, an upper knife 63, and a coated paper cutting cylinder 67. The cutting base plate 61 is a long strip and is installed between the rear ends of two upper small wall plates 33, corresponding to the film feeding drive roller 36a in the coated paper feeding mechanism 3B. The bottom knife 62 is U-shaped, with two threaded holes on each of its vertical sides and three bolt holes on its horizontal cutting edge, allowing the bottom knife 62 to be mounted on the rear end of the cutting base plate 61 by three screws. The upper knife 63 is inverted U-shaped, with a vertical groove 631 on each of its vertical sides and a threaded connection hole 632 below each of the two vertical grooves 631. The upper knife 63 is connected by two pairs of corresponding screws. A pair of horizontally shouldered screws 64, inserted into two vertical sliding grooves 631, and two pairs of washers 65 and horizontal springs 66, which are sequentially fitted onto the two horizontally shouldered screws 64, are installed on the rear end face of the bottom blade 62. A coated paper cutting cylinder 67 is vertically mounted on the working platform 10 via a base frame 670 and is located between the front sides of two upper small wall plates 33. The piston rod of the coated paper cutting cylinder 67 is connected to two threaded connection holes on the upper blade 63 via a cylinder connecting plate 68 and two screws. A section of coated paper 200 fed by the coated paper feeding mechanism 3B is located between the horizontal blade edge of the bottom blade 62 and the horizontal blade edge of the upper blade 63. The retraction of the piston rod of the coated paper cutting cylinder 67 pulls the upper blade 63 down, so that the horizontal blade edge of the upper blade 63 and the horizontal blade edge of the bottom blade 62 together cut off the tail end of a section of coated paper 200.

[0085] The cardboard lifting mechanism 7A is installed below the binding port of the work platform 10. The cardboard lifting mechanism 7A includes two lower wall plates 71 connected to the bottom surface of the work platform 10 and located at the front and rear of the binding port respectively, a base plate 72 spanning between the lower ends of the two lower wall plates 71, a lifting cylinder 70 mounted upward on the base plate 72, a transition plate 73 mounted on the piston rod end of the lifting cylinder 70, and two lifting plates 74 fixed at the front and rear ends of the top of the transition plate 73 respectively. The cylinder diameter of the lifting cylinder 70 is larger than the cylinder diameter of the coated paper pressing cylinder 51. When the piston rod of the lifting cylinder 70 extends and lifts the cigarette box cardboard stack 100 through the lifting plate 74, the piston rod of the coated paper pressing cylinder 51 will retract until the top surface of the cigarette box cardboard stack 100 contacts the bottom surface of the intermediate plate 17.

[0086] The coated paper bending mechanism 8 is installed on the bottom surface of the top plate 16 and located on both sides of the coated paper pressing mechanism 5. The coated paper bending mechanism 8 includes two first bending cylinders 81 that are hinged downwards to the bottom surface of the top plate 16 and are located one-to-one with the front and rear sides of the coated paper pressing cylinder 51; two first bending plates 82 whose inner ends are hinged one-to-one with the front and rear ends of the intermediate plate 17 through a pair of bending plate inner hinges 80a; two bending cylinder seats 83 that are installed one-to-one with the middle of the inner side of the top surface of the two first bending plates 82 and are hinged one-to-one with the lower end of the piston rod of the two first bending cylinders 81; and two second bending cylinders 84 that are hinged one-to-one with the outer ends of the two bending cylinder seats 83. Two second bending plates 85 are hinged to the outer ends of the two first bending plates 82 by a pair of bending plate external hinges 80b and to the piston rod ends of the two second bending cylinders 84 by a cylinder hinge 80c. First, the coated paper 200 located on the front and rear sides of the top of the cigarette box cardboard stack 100 is bent vertically downward by the two first bending cylinders 81 and the two first bending plates 82. Then, the coated paper 200 located on the front and rear sides of the bottom of the cigarette box cardboard stack 100 is bent horizontally and pressed tightly against the bottom surface of the cigarette box cardboard stack 100 (the stacked part with coated paper 200) by the two second bending cylinders 84 and the two second bending plates 85, one fast and one slow.

[0087] The heat-bonding mechanism 7B for coated paper is installed inside the cardboard lifting mechanism 7A. The heat-bonding mechanism 7B includes a heat-bonding cylinder 75 installed in the middle of the top surface of the transition plate 73 of the cardboard lifting mechanism 7A, a heat-bonding head 77 installed on the end of the piston rod of the heat-bonding cylinder 75 via a heat insulation plate 76, and a silicone strip 78 installed on the top of the heat-bonding head 77. The heat-bonding cylinder 75, the heat-bonding head 77 and the silicone strip 78 are used to firmly heat-bond the middle stacked part of the coated paper 200 on the bottom surface of the cigarette box cardboard stack 100 to form the finished cigarette box cardboard stack 100A.

[0088] The finished product output unit includes a finished product output table 9A, a finished product receiving table 9B, and a finished product pushing mechanism 9, wherein,

[0089] The finished product output platform 9A is connected in the notch of the work platform 10. The finished product output platform 9A includes an output platform front wall plate 91a and an output platform rear wall plate 91b connected in the right end notch of the work platform 10, two output platform active rollers 92a spanning between the left side of the output platform front wall plate 91a and the left side of the output platform rear wall plate 91b, several output platform passive rollers 92b spanning between the right side of the output platform front wall plate 91a and the right side of the output platform rear wall plate 91b, a motor 90 installed on the left side of the output platform rear wall plate 91b and located in the middle below the rear end of the two output platform active rollers 92a, three synchronous pulleys 93 correspondingly installed on the rear end of the two output platform active rollers 92a and the output shaft of the motor 90, and a synchronous belt 94 wrapped around the three synchronous pulleys 93. The finished product output platform 9A receives the finished cigarette box cardboard stack 100A pushed to the right by the binding opening of the next stack of cigarette box cardboard stack 100.

[0090] The finished product receiving station 9B is connected to the right side of the front wall panel 91a of the output station of the finished product output station 9A;

[0091] The finished product pushing mechanism 9 is installed at the rear right end of the work platform 10. The finished product pushing mechanism 9 includes a finished product pushing cylinder 96 installed in the rear right direction of the work platform 10 via a connecting seat 95 and a push plate 97 installed on the piston rod end of the finished product pushing cylinder 96. The finished product pushing cylinder 96 and the push plate 97 push the finished cigarette box cardboard stack 100A located on the finished product output table 9A forward to the finished product receiving table 9B.

[0092] The automated strapping machine for cigarette box production lines of this utility model operates according to the following steps:

[0093] 1. Place the stack of cigarette cardboard 100, which has been folded and is ready to be bundled on the cigarette box folding machine, onto the work platform 10, so that the left end face of the stack of cigarette cardboard 100 rests against the right end face of the feeding board 26 of the feeding board mechanism 2B, and the front side face of the stack of cigarette cardboard 100 rests against the rear surface of the positioning plate 14 of the pressing board mechanism 2A. Then, press both start buttons 19 at the same time (using two start buttons 19 is for safety; both start buttons 19 must be pressed simultaneously with both hands to start the bundling machine, to prevent one hand from remaining on the work platform 10 when starting the machine) to start the bundling machine;

[0094] 2. The piston rod of the pressing cylinder 21 of the pressing mechanism 2A extends and drives the pressing plate 22 to press down, flattening the deformed cigarette box cardboard stack 100 after folding. Then the pressing cylinder 21 immediately returns to its original position. The left and right rodless cylinder 24 of the feeding mechanism 2B pushes the cigarette box cardboard stack 100 to the right to the binding position through the feeding plate 26.

[0095] 3. The film feeding cylinder 34 in the film feeding mechanism 3B works first to convey the film 200 a certain distance. Then, the forward and backward rodless cylinder 42 in the film feeding mechanism 4 works to push the finger cylinder 43 installed on the slider of the forward and backward rodless cylinder 42 forward to near the end of the film 200. The finger of the finger cylinder 43 bites the end of the film 200. Then, the forward and backward rodless cylinder 42 retracts and pulls a section of film 200 to the top of the cigarette box cardboard stack 100 to wait.

[0096] 4. The piston rod of the coating paper pressing cylinder 51 in the coating paper pressing mechanism 5 extends, and through the coating paper pressing plate 52, presses the middle part of a section of coating paper 200 located above the cigarette box cardboard stack 100 downwards onto the top surface of the cigarette box cardboard stack 100 (see...). Figure 15a To prevent the coating paper 200 from shifting;

[0097] 5. The piston rod of the lifting cylinder 70 in the cardboard lifting mechanism 7A extends, and through the two lifting plates 74, lifts the cigarette box cardboard stack 100 until the top surface of the cigarette box cardboard stack 100 contacts the bottom surface of the intermediate plate 17 (see...). Figure 15b );

[0098] 6. The piston rod of the coating paper cutting cylinder 67 in the coating paper cutting mechanism 6 retracts downward, causing the upper blade 63 to move downward. The upper blade 63 and the bottom blade 62 together cut off the tail end of a section of coating paper 200. At the same time, the finger of the finger cylinder 43 in the coating paper pulling mechanism 4 releases the end of the coating paper 200.

[0099] 7. The piston rods of the two first bending cylinders 81 in the coated paper bending mechanism 8 extend simultaneously, and the coated paper 200 located on the top front and rear sides of the cigarette box cardboard stack 100 is bent downwards by 90 degrees through the two first bending plates 82 (see...). Figure 15c );

[0100] 8. The piston rods of the two second bending cylinders 84 extend out at different speeds, and bend the coated paper 200 at 90 degrees relative to each other through the two second bending plates 85, so that the two ends of the coated paper 200 have overlapping parts.

[0101] 9. In the heat-sealing mechanism 7B, the piston rod of the heat-sealing cylinder 75 extends, and through the heat-sealing head 77 and silicone strip 78, firmly heat-seales the middle stacked portion of the coated paper 200 on the bottom surface of the cigarette box cardboard stack 100 (see...). Figure 15d The process involves forming a finished cigarette box cardboard stack 100A; then, the piston rods of the hot-sticking cylinder 75, the two second bending cylinders 84, the two first bending cylinders 81, and the lifting cylinder 70 retract, and the finished cigarette box cardboard stack 100A falls onto the working platform 10. The coating paper pressing cylinder 51 retracts, ready for the next start-up.

[0102] 10. The second time, the cigarette box cardboard stack 100, folded on the cigarette box folding machine, is placed on the work platform 10. The strapping machine is started again using the two start buttons 19. The left and right rodless cylinders 24 of the cardboard feeding mechanism 2B push the second stack of cigarette box cardboard 100 on the work platform to the right to the strapping opening position via the cardboard feeding 26. During the pushing process, the finished cigarette box cardboard stack 100A, which was strapped in the first time, is pushed from the strapping opening to the finished product output table 9A. When the finished cigarette box cardboard stack 100A contacts the two output table drive rollers 92a of the finished product output table 9A, it will be output to the right side of the finished product output table 9A. The finished cigarette box cardboard stack 100A waits on the right side of the finished product output table 9A for a set time. Then, the piston rod of the finished product pushing cylinder 96 in the finished product pushing mechanism 9 extends and pushes the finished cigarette box cardboard stack 100A located on the right side of the finished product output table 9A forward to the finished product receiving table 9B via the push plate 97, waiting for the employee to collect it. The cycle repeats...

[0103] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. An automated strapping machine for a cigarette box production line, comprising a frame, a cardboard output unit, a strapping unit, and a finished product output unit; characterized in that, The frame includes a lower support, a positioning plate, and an upper support. The lower support includes four support columns, a horizontal support frame fixed between the lower parts of the four support columns, a work platform fixed on the top surface of the four support columns with a notch in the middle of the rear end, and a middle support column fixed between the middle of the front side of the horizontal support frame and the middle of the bottom front side of the work platform. Two guide grooves are opened laterally in the middle left side of the work platform, and a binding opening is opened in the middle right side of the work platform. The positioning plate is fixed on the work platform and is located parallel to the front side of the two guide grooves. The upper support includes six long columns fixed on the work platform, a top plate fixed on the top surface of the six long columns, and a middle plate suspended below the top plate by four short columns and located directly above the binding opening. The width of the middle plate is adapted to the width of a stack of cigarette cardboard. The paperboard output unit includes a paperboard pressing mechanism and a paperboard feeding mechanism; wherein... The cardboard pressing mechanism is installed on the bottom surface of the top plate and located directly above the two guide grooves, pressing a stack of cigarette box cardboard flat. The paperboard feeding mechanism is installed on the working platform and located to the left below the paperboard pressing mechanism. It pushes a stack of cigarette box paperboards that has been flattened to the right to the position of the binding opening. The bundling unit includes a coated paper feeding mechanism, a coated paper delivery mechanism, a coated paper pulling mechanism, a coated paper pressing mechanism, a coated paper cutting mechanism, a cardboard lifting mechanism, a coated paper bending mechanism, and a coated paper heat sealing mechanism; wherein... The film-dispensing mechanism is installed on the right front side of the lower support; The coating paper feeding mechanism is installed on the front right side of the top surface of the working platform, and feeds the coating paper released by the coating paper dispensing mechanism backward by a section. The film-coating paper pulling mechanism is installed on the bottom surface of the intermediate plate, corresponding to the film-coating paper feeding mechanism. It first bites the end of the film-coating paper fed by the film-coating paper feeding mechanism, and then pulls the film-coating paper backward so that a section of film-coating paper is located above the cigarette box cardboard stack. The coated paper pressing mechanism is installed on the bottom surface of the top plate and is located directly above the binding opening, pressing the middle part of a section of coated paper located above the cigarette box cardboard stack onto the top surface of the cigarette box cardboard stack; The coating paper cutting mechanism is installed at the front end of the coating paper feeding mechanism and cuts off the tail end of a section of coating paper fed by the coating paper feeding mechanism. The cardboard lifting mechanism is installed below the working platform corresponding to the binding opening, and lifts the stack of cigarette cardboard until the top surface of the stack of cigarette cardboard contacts the bottom surface of the intermediate plate; The coated paper bending mechanism is installed on the bottom surface of the top plate and located on both sides of the coated paper pressing mechanism. First, the coated paper on both sides of the top surface of the cigarette box cardboard stack is bent vertically downwards, and then the coated paper on both sides of the bottom surface of the cigarette box cardboard stack is bent horizontally relative to each other and pressed tightly against the bottom surface of the cigarette box cardboard stack. The coated paper hot-pressing mechanism is installed inside the cardboard lifting mechanism to firmly hot-press the middle stacked portion of the coated paper on the bottom surface of the cigarette box cardboard stack, forming a finished cigarette box cardboard stack. The finished product output unit includes a finished product output platform, a finished product receiving platform, and a finished product pushing mechanism, wherein... The finished product output platform is connected to the notch of the working platform and receives the finished cigarette box cardboard stack pushed out to the right from the binding opening of the next stack of cigarette box cardboard. The finished product receiving station is connected to the front end of the finished product output station; The finished product pushing mechanism is installed at the rear right end of the work platform, and pushes the stack of finished cigarette box cardboard located on the finished product output platform forward to the finished product receiving platform.

2. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The paperboard pressing mechanism includes a paperboard pressing cylinder vertically mounted on the bottom surface of the top plate and a paperboard pressing device mounted on the lower end of the piston rod of the paperboard pressing cylinder.

3. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The paperboard feeding mechanism includes a left-right rodless cylinder horizontally mounted on the bottom surface of the work platform, a U-shaped connector mounted on the top surface of the slider of the left-right rodless cylinder and extending upward through two guide slots out of the work platform, and a paperboard feeder mounted on the upper right end face of the connector.

4. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The unwinding paper mechanism includes two bearing seats that are installed one-to-one in the middle of the central support column and a support column that is supported in the middle of the right front end of the working platform, an unwinding shaft spanning between the two bearing seats, a positioning ring fixed on the unwinding shaft, a tensioning cone fixed on the unwinding shaft, and a roll of coated paper that passes through a core sleeve between the positioning ring and the tensioning cone. The film feeding mechanism includes two upper wall plates, a film feeding cylinder, a swing arm, a film feeding drive roller, a film feeding passive roller, and a film feeding roller pressure adjustment mechanism. The two upper wall plates are fixed to the working platform, one on the left and one on the right. Each of the two upper wall plates has a blind hole vertically formed in the center of its top surface, and a through hole perpendicularly communicating with the bottom of the blind hole is formed on the upper surface of each upper wall plate. The film feeding cylinder is hinged to the working platform and located on the left side of the left upper wall plate. One end of the swing arm is fixedly connected to the piston rod end of the film feeding cylinder. The left and right ends of the film feeding drive roller are each mounted on the upper part of the two upper wall plates via one-way bearings, with the extension of the drive roller located on the left upper wall plate. The left end of the small wall panel is also hinged to the other end of the swing arm via a one-way bearing; the left and right ends of the film feeding passive roller are respectively passed through the holes on the two upper small wall panels and are tangential to the upper part of the active roller; the film feeding roller pressure adjustment mechanism includes two pressure plates respectively set on the top surface of the two upper small wall panels, two vertical springs respectively installed in the blind holes of the two upper small wall panels, and two vertical shoulder screws installed in the threaded holes on the two pressure plates and passing through the two vertical springs respectively and then inserted into the radial end holes at both ends of the film feeding passive roller; the end of the film-coated paper pulled out from the film-coated paper roll on the film-coating paper feeding mechanism passes between the film feeding active roller and the film feeding passive roller; The coated paper cutting mechanism includes a cutting base plate, a bottom knife, an upper knife, and a coated paper cutting cylinder. The cutting base plate is installed between the rear ends of two upper small wall plates corresponding to the drive roller in the coated paper feeding mechanism. The bottom knife is U-shaped, with two threaded holes on each of its two vertical sides and three bolt holes on the surface of its horizontal blade edge, allowing the bottom knife to be mounted on the rear end of the cutting base plate by three screws. The upper knife is inverted U-shaped, with a vertical groove on each of its two vertical sides and a threaded section below each of the two vertical grooves. The upper blade is mounted on the rear end face of the bottom blade via two pairs of horizontally shouldered screws inserted into two vertical sliding grooves, two pairs of washers fitted onto the two horizontally shouldered screws, and a horizontal spring. The coated paper cutting cylinder is mounted vertically upward on the working platform and located between the front sides of the two upper small wall plates. The piston rod of the coated paper cutting cylinder is connected to two threaded connection holes on the upper blade via a cylinder connecting plate and two screws. A section of coated paper fed by the coated paper feeding mechanism is located between the horizontal blade edge of the bottom blade and the horizontal blade edge of the upper blade.

5. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The film-feeding mechanism includes a rodless cylinder seat mounted on the right side of the bottom surface of the intermediate plate, a forward and backward rodless cylinder mounted on the bottom surface of the rodless cylinder seat, and a finger cylinder mounted on the slider of the forward and backward rodless cylinder and opposite to the film-feeding mechanism.

6. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The coating paper pressing mechanism includes a coating paper pressing cylinder installed on the bottom surface of the top plate and located above the binding opening of the working platform, and a coating paper pressing plate installed at the lower end of the piston rod of the coating paper pressing cylinder and passing through the pressing plate hole opened on the intermediate plate. The coated paper bending mechanism includes two first bending cylinders that are hinged downwards to the bottom surface of the top plate and are located one-to-one with the front and rear sides of the coated paper pressing cylinder; two first bending plates whose inner ends are hinged one-to-one with the front and rear ends of the intermediate plate; two bending cylinder seats that are installed one-to-one with the middle of the inner side of the top surface of the two first bending plates and are hinged one-to-one with the lower end of the piston rod of the two first bending cylinders; two second bending cylinders that are hinged one-to-one with the outer ends of the two bending cylinder seats; and two second bending plates that are hinged one-to-one with the outer ends of the two first bending plates and are hinged one-to-one with the piston rod ends of the two second bending cylinders.

7. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The cardboard lifting mechanism includes two lower wall plates connected to the bottom surface of the work platform and located correspondingly at the front and rear of the binding opening, a base plate spanning between the lower ends of the two lower wall plates, a lifting cylinder mounted upward on the base plate, a transition plate mounted on the piston rod end of the lifting cylinder, and two lifting plates fixed correspondingly to the front and rear ends of the top of the transition plate. The heat-bonding mechanism for coated paper includes a heat-bonding cylinder installed in the middle of the transition plate of the paperboard lifting mechanism and a heat-bonding head installed at the end of the piston rod of the heat-bonding cylinder via a heat insulation plate.

8. The automated strapping machine for a cigarette box production line according to claim 7, characterized in that, The heat-sealing mechanism for coated paper also includes a silicone strip installed at the top of the heat-sealing head.

9. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The finished product output platform includes an output platform front wall panel and an output platform rear wall panel connected to the right end of the work platform, two output platform drive rollers spanning between the left side of the output platform front wall panel and the left side of the output platform rear wall panel, several output platform driven rollers spanning between the right side of the output platform front wall panel and the right side of the output platform rear wall panel at intervals, a motor installed on the left side of the output platform rear wall panel and located below the rear end heads of the two output platform drive rollers in the middle, three synchronous pulleys installed one-to-one on the rear end heads of the two output platform drive rollers and the output shaft of the motor, and a synchronous belt wrapped around the three synchronous pulleys.

10. The automated strapping machine for a cigarette box production line according to claim 1, characterized in that, The product pushing mechanism includes a product pushing cylinder mounted on the right rear end of the working platform via a cylinder seat and a push plate mounted on the piston rod end of the product pushing cylinder.

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