Carton forming production line

Abstract

The paper box forming production line has a conveyor belt device including a longitudinally arranged main conveyor belt, and a paper moving device that cooperates with the transfer feeding laterally; the paper clamping device of the paper feeding device moves laterally, and the paper clamping device is connected with the paper feeding pallet; the paper feeding device is located on the lateral side of the main conveyor belt, and a three-mouth hemming mechanism is arranged between the paper feeding device and the main conveyor belt. The paper moving device is connected with the main conveyor belt, the three-mouth hemming mechanism, and the paper feeding device respectively, and the paper feeding device is connected with the forming mechanism. The main conveyor belt is arranged longitudinally, and the paper moving pneumatic suction nozzle moves laterally to cooperate with the conveying, forming a structure with a transverse and longitudinal layout. The longitudinal length of the production line is relatively short, and the material cardboard on the main conveyor belt is conveyed laterally through the paper moving pneumatic suction nozzle. The material can be close to the edge of the main conveyor belt on the main conveyor belt, and the distance is shorter during transverse conveying, which is more efficient. It meets the production and manufacturing needs of smaller-sized paper boxes and avoids the problem of difficulties in conveying and connecting corresponding small-sized cardboard and facial paper.

Description

Technical Field

[0001] The invention relates to a paper box forming device. Background Art

[0002] The side wall of the drawer-type paper box (such as wine box, gift box, etc.) is in the shape of a square tube. During the paper box forming process, the face paper is fed into the gluing mechanism by the paper feeding mechanism. After being glued by the gluing mechanism, the face paper enters the conveyor belt of the conveyor belt device (i.e. the main conveyor belt, such as a suction conveyor belt), and is transported to the cover mechanism (the same as the cover machine in the leather shell machine) by the conveyor belt. The cardboard conveying device in the cover mechanism transports the cardboard out and its cover device transfers the cardboard to the conveyor belt, and the cover is offset with the face paper on the conveyor belt so that the cardboard is pasted with face paper and is further transported by the conveyor belt. This mature technology is used in both paper box forming and leather shell forming. Then, the cardboard with the facial paper is transferred to the three-mouth hemming mechanism for three-mouth hemming, that is, the box openings of the three side walls of the carton are hemmed. After the three-mouth hemming (three-side box opening hemming) is completed, the cardboard is transferred to the forming mechanism for forming. During the forming process, the box opening of the fourth side wall of the carton needs to be hemmed, and the box opening corresponding to the fourth side wall (i.e., the fourth opening) is hemmed by the fourth-mouth hemming device. After the forming is completed, the box discharging device of the box discharging mechanism removes the carton from the mold at the box discharging station. The box discharging mechanism uses a hook plate to retract and hook the box or clamp the box or suck the box. The box discharging mechanism uses a suction nozzle to suck and move the box. In the Chinese patent document, CN204640902U carton forming machine involves the forming process of the carton; the carton forming machine has a three-mouth hemming mechanism, a turntable mold mechanism, an upper bottom plate mechanism, a cardboard transfer mechanism, a (carton) forming mechanism, and a box discharging mechanism. After the face paper and the cardboard are offset in the cover mechanism, they are transferred to the forming machine. The slow transfer speed affects the production speed and efficiency. When making relatively small-sized cartons, the face paper is conveyed by multiple conveyor belts, and the conveyor belts cannot be conveyed at the joints. Among them, the cartons are in a horizontal state, and the fourth edge wrapping (the last side of the box edge wrapping, i.e. the fourth edge wrapping) needs to rely on the carton mold. The existence of the carton mold makes its structural space position unable to meet the requirements of the fourth edge wrapping of smaller-sized cartons. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a paper box forming production line with fast running speed, stable connection, high efficiency and the ability to meet relatively small size requirements.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: a paper box forming production line, including a conveyor belt device and a forming machine, the forming machine includes a three-mouth edge wrapping mechanism, a paperboard transfer mechanism and a forming mechanism, the conveyor belt device includes a main conveyor belt, the main conveyor belt is arranged longitudinally, and is characterized in that: the paperboard transfer mechanism includes a paper moving device and a paper feeding device, the paper moving device includes a paper moving pneumatic suction nozzle, a paper moving rack and a paper moving seat, the paper moving pneumatic suction nozzle is connected to the paper moving rack, the paper moving rack is arranged on the paper moving seat, and the paper moving rack and the paper moving seat are connected. A paper moving rack lifting transmission device is provided between the paper seats, and the paper moving seat is connected to the paper moving transverse moving transmission device; the paper feeding device includes a paper feeding support plate, a paper feeding rack and a paper clamping device, the paper clamping device is connected to the paper feeding rack, the paper feeding rack is connected to the paper feeding transverse moving transmission device, and the paper clamping device is connected to the paper feeding support plate; the paper feeding device is located on the lateral side of the main conveyor belt, and a three-mouth edge wrapping mechanism is provided between the paper feeding device and the main conveyor belt, the paper moving device is respectively connected to the main conveyor belt, the three-mouth edge wrapping mechanism, and the paper feeding device, and the paper feeding device is connected to the forming mechanism.

[0005] The pneumatic suction nozzle for paper transfer includes a front group of suction nozzles and a rear group of suction nozzles. The front group of suction nozzles and the rear group of suction nozzles are arranged horizontally, and the front group of suction nozzles are correspondingly matched and connected with the paper feeding tray; the paper clamping device has a clamp corresponding to the tail of the cardboard, and the opening of the clamp of the paper clamping device is correspondingly matched and connected with the paper supporting surface of the paper feeding tray.

[0006] The three-mouth hemming mechanism includes an hemming support platform, an hemming device and an hemming transmission device. The hemming device includes an hemming plate, which is located at the front side of the hemming support platform and is connected to the hemming lifting seat. The hemming plate is slidably arranged relative to the hemming lifting seat. The hemming transmission device includes an hemming lifting transmission device and an hemming front and back sliding transmission device. The hemming lifting transmission device is transmission-connected to the hemming lifting seat, and the hemming front and back sliding transmission device is transmission-connected to the hemming plate.

[0007] The edge-wrapping lifting and lowering transmission device includes a first cam transmission part, and the edge-wrapping front and rear sliding transmission device includes a second cam transmission part; the edge-wrapping lifting and lowering transmission device also includes a first swing arm and a first connecting rod, the first cam transmission part is transmission-connected to the first swing arm, the first swing arm is transmission-connected to the first connecting rod, and the first connecting rod is transmission-connected to the edge-wrapping lifting seat; the edge-wrapping front and rear sliding transmission device also includes a second swing arm and a second connecting rod, the second cam transmission part is transmission-connected to the second swing arm, the second swing arm is transmission-connected to the second connecting rod, and the second connecting rod is transmission-connected to the edge-wrapping plate; the first cam transmission part adopts a first curved surface, the edge-wrapping lifting and lowering transmission device also includes a first return spring, and the first return spring is transmission-connected to the edge-wrapping lifting seat; the second cam transmission part adopts a second curved surface, the edge-wrapping front and rear sliding transmission device also includes a second return spring, and the second return spring is transmission-connected to the edge-wrapping plate.

[0008] The edge wrapping lifting seat is lifted and lowered on the frame, the edge wrapping transmission device is connected to the frame, the edge wrapping plate and the edge wrapping supporting platform are obliquely pressed together, and the edge wrapping supporting platform is equipped with an edge wrapping material suction pneumatic suction nozzle.

[0009] The forming mechanism also includes an upper side forming mechanism, and an upper folding surface device is provided on the mounting frame of the upper side forming mechanism. The upper folding surface device includes a folding surface sliding seat and a folding surface lifting bracket for installing the folding surface components. The folding surface lifting bracket is connected to the folding surface sliding seat, and the folding surface lifting bracket is set to rise and fall relative to the folding surface sliding seat. The folding surface sliding seat is set to slide horizontally on the mounting frame, and the folding surface sliding seat is connected to the folding surface horizontal sliding transmission device. An inclined track is also provided on the mounting frame, and a guide component is provided on the inclined track. The guide component is hinged on the folding surface lifting bracket. The folding surface horizontal sliding transmission device includes a folding surface driving motor, a folding surface synchronous wheel and a folding surface synchronous belt. The folding surface driving motor is connected to the folding surface synchronous wheel, and the folding surface synchronous wheel is connected to the folding surface synchronous belt. A folding surface horizontal slide rail is arranged on the mounting frame, and the folding surface sliding seat is arranged on the folding surface horizontal slide rail, and the folding surface sliding seat is connected to the folding surface synchronous belt; the mounting frame includes a folding surface mounting plate part, and the folding surface horizontal sliding transmission device is installed on the folding surface mounting plate part. The folding surface synchronous wheel, the folding surface synchronous belt, the folding surface horizontal slide rail and the folding surface sliding seat are located on the front side of the folding surface mounting plate part, and the folding surface driving motor, the folding surface lifting bracket and the inclined track are located on the back side of the folding surface mounting plate part; the inclined track adopts an inclined track with a groove, and the guide component adopts a guide wheel, and the guide wheel is located in the groove of the inclined track; the mounting frame is also provided with an upper veneer device, and the upper veneer device includes There are veneer sliding seats and veneer brackets for installing veneer components. The veneer brackets are horizontally slidably arranged on the mounting frame, and the veneer brackets are connected to the veneer horizontal sliding transmission device; the veneer horizontal sliding transmission device includes a veneer driving motor, a veneer synchronous wheel and a veneer synchronous belt. The veneer driving motor is transmission-connected to the veneer synchronous wheel, and the veneer synchronous wheel is transmission-connected to the veneer synchronous belt. A veneer horizontal slide rail is arranged on the mounting frame, and the veneer bracket is arranged on the veneer horizontal slide rail, and the veneer bracket is connected to the veneer synchronous belt; the mounting frame includes a veneer mounting plate part, and the veneer horizontal sliding transmission device is installed on the veneer mounting plate part. The veneer synchronous wheel, the veneer synchronous belt, the veneer horizontal slide rail and the veneer bracket are located on the front of the veneer mounting plate part, and the veneer driving motor is located on the back of the veneer mounting plate part; the folding surface part adopts a folding plate, and the veneer part adopts a veneer roller.

[0010] The forming machine includes a box discharging station and a box mouth edge wrapping station. The box mouth edge wrapping station is equipped with a box mouth edge wrapping mechanism. The box mouth edge wrapping mechanism includes an edge wrapping press frame and an edge wrapping inserting plate device. The edge wrapping inserting plate device includes an edge wrapping inserting plate. The edge wrapping press frame is connected with a pressure lifting transmission device. The box discharging station is arranged behind the box discharging station. The box discharging station and the box mouth edge wrapping station are connected by the box discharging device. The box mouth edge wrapping mechanism also includes an edge wrapping bracket. A pressure surface is connected to the bottom of the edge wrapping press frame. The pressure surface is located above the edge wrapping bracket. There is a box containing space between the edge wrapping bracket and the pressure surface. The edge wrapping inserting plate is located on the front side of the box containing space.

[0011] The box discharging device includes a box taking component and a box discharging moving seat. The box taking component is connected to the box discharging moving seat. The box taking component is arranged on the left and right sides. The box discharging moving seat is connected to the box discharging moving transmission device; the front part of the edging bracket is connected to the front bracket part, and the front bracket part is connected to the box discharging station; the box taking component is arranged in a front group and a rear group; the box taking component adopts a one-way hook box mouth component, and the box taking component is connected to the box discharging moving seat through a mounting frame.

[0012] The edge wrapping plug plate is connected to the oblique slide plate, which is arranged on the oblique slide rail, the oblique slide plate and the oblique reciprocating forward and backward moving transmission device, and the oblique slide rail is set low in the front and high in the back; the oblique slide rail is connected to the edge wrapping press frame, and the edge wrapping press frame adopts the edge wrapping press plate, and the pressure surface is located on the lower side of the edge wrapping press frame; the edge wrapping plug plate is located below the pressure surface; the oblique reciprocating forward and backward moving transmission device is connected to the edge wrapping press frame; the edge wrapping press frame and the edge wrapping plug plate device are connected to the edge wrapping mounting plate, the edge wrapping mounting plate is connected to the edge wrapping bracket, and a lifting and adjusting device is arranged between the edge wrapping mounting plate and the edge wrapping bracket; the pressure lifting and lowering transmission device is connected between the edge wrapping mounting plate and the edge wrapping press frame; the edge wrapping plug plate is set to be lifted and moved forward and backward, and the edge wrapping plug plate has an upper horizontal matching surface; the box mouth edge wrapping mechanism also includes a box tail limit plate, and the box tail limit plate is set to be lifted or reciprocated horizontally.

[0013] The beneficial effect of the utility model is that the main conveyor belt of the carton forming production line is arranged longitudinally, the paper-moving pneumatic suction nozzle moves transversely to cooperate with the conveying, and the paper-feeding device (paper-feeding tray) is located on the transverse side of the main conveyor belt, forming a transverse and longitudinal layout structure, so that the longitudinal length of the production line is shorter and the layout is more reasonable. In addition, the material cardboard is conveyed transversely from the main conveyor belt through the paper-moving pneumatic suction nozzle, and the cardboard and the facial paper can be close to the edge of the main conveyor belt on the main conveyor belt, and the distance is shorter during transverse conveying, and the conveying efficiency is higher. The cardboard movement and transfer speed is faster and more stable. It meets the production and production needs of smaller-sized paper boxes and avoids the problem of difficulty in conveying and connecting corresponding small-sized cardboard and facial paper. The improved three-mouth hemming mechanism has a reasonable structural layout, is more compact, and operates stably. The distance across the hemming board in the front and rear directions is shorter, and the space occupied by the hemming board and the hemming lifting seat can be as small as possible, and it provides a structural basis for faster transmission operation, providing support for improving the speed and efficiency of the production line. The box mouth hemming station is arranged after the box discharging station, and the box discharging device removes the carton on the carton mold at the box discharging station and discharging the carton, and the box discharging device moves the carton to the box mouth hemming station; the station arrangement is redesigned, and the box mouth hemming station is connected and arranged after the box discharging station, which can not only realize the carton to be removed from the mold (to achieve demoulding and box discharging), but also can perform hemming of the fourth box mouth after detaching from the mold, so that the fourth box mouth does not need to rely on the carton mold when hemming, avoiding interference from the mold, meeting the fourth box mouth hemming needs of smaller-sized carton, and combining the box discharging and the fourth box mouth hemming, which is efficient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following describes the relevant details and working principles of the implementation methods and embodiments of the present utility model in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the paper box forming production line.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the cardboard transfer mechanism.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the three-mouth hemming mechanism.

[0018] Figure 4 for Figure 3 Schematic diagram of the structure from another angle.

[0019] Figure 5 It is a side view of the three-mouth hemming mechanism.

[0020] Figure 6 It is a schematic diagram of the front structure of the upper side forming mechanism.

[0021] Figure 7 for Figure 6 Schematic diagram of the three-dimensional structure.

[0022] Figure 8 for Figure 6 Schematic diagram of the reverse structure.

[0023] Fig. 9 for Figure 8 Schematic diagram of the three-dimensional structure.

[0024] Fig.10 It is a schematic diagram of the three-dimensional structure at the box unloading station and the box mouth hemming station.

[0025] Fig.11 for Fig.10 Another angle diagram of the structure.

[0026] Fig.12 It is a side view of the box unloading station and the box edge hemming station. DETAILED DESCRIPTION

[0027] Referring to the attached drawings, the carton forming production line in this embodiment includes a conveyor belt device 1 and a forming machine 2. The forming machine 2 includes a three-mouth hemming mechanism 3, a cardboard transfer mechanism 4 and a forming mechanism 5. The conveyor belt device 1 includes a main conveyor belt 6 (usually a suction conveyor belt is selected). The main conveyor belt 6 is arranged longitudinally and runs longitudinally to cooperate with longitudinal feeding. The main conveyor belt 6 conveys the glued surface paper and is bonded to the cardboard during the conveying process (such as a misaligned cover). The main conveyor belt is connected to the gluing mechanism, the gluing mechanism is connected to the paper feeding mechanism, and the main conveyor belt is connected to the cover mechanism to bond to the cardboard (such as a misaligned cover). This is a mature technology and will not be described in detail.

[0028] In order to achieve fast operation speed, stable connection and high efficiency, the paperboard transfer mechanism 4 in this embodiment includes a paper transfer device 31 and a paper feeding device 32, which are used to connect the main conveyor belt, the three-mouth hemming mechanism and the forming mechanism.

[0029] Among them, the paper moving device 31 includes a paper moving pneumatic suction nozzle 33, a paper moving rack 34 and a paper moving seat 35. The paper moving pneumatic suction nozzle 33 is connected to the paper moving rack 34, and the paper moving rack 34 is arranged on the paper moving seat 35. A paper moving rack lifting transmission device 36 is arranged between the paper moving rack and the paper moving seat, and the paper moving seat 35 is connected to a paper moving transverse movement transmission device 37; the paper moving rack lifting transmission device 36 drives the paper moving rack 34 to be lifted and lowered on the paper moving seat 35, and the paper moving rack lifting transmission device 36 can be driven by a cylinder (a cylinder is used in the figure) or a motor, and a sliding pair 38 for lifting and lowering (such as a linear guide pair in the figure) can be arranged between the paper moving rack and the paper moving seat. The paper transfer seat is driven by the paper transfer transverse movement transmission device to move transversely on the frame. The paper transfer transverse movement transmission device 37 is driven by a cylinder or a motor. The figure uses a motor (such as a servo motor) with a synchronous belt and a synchronous wheel transmission structure. The paper transfer seat is connected to the transverse guide rail 39 for stable transverse movement, so that the paper transfer pneumatic suction nozzle can cooperate to move transversely and lift to match the material (i.e., the cardboard with the face paper). The main conveyor belt of the conveyor belt device runs longitudinally to match the feeding, and the paper transfer pneumatic suction nozzle 33 runs transversely to match the feeding, forming an orthogonal relationship.

[0030] Among them, the paper feeding device 32 includes a paper feeding tray 40, a paper feeding frame 41 and a paper clamping device 42. The paper clamping device 42 is connected to the paper feeding frame 41, and the paper feeding frame is connected to the paper feeding transverse moving transmission device 43. The paper clamping device 42 is connected to the paper feeding frame 40. The paper feeding frame 41 is driven by the paper feeding transverse moving transmission device 43 to move transversely, and the paper clamping device 42 moves transversely with the paper feeding frame. The paper clamping device is connected with the paper feeding tray, so that the paper clamping device clamps the paperboard on the paper feeding tray and transports it transversely forward, and it can enter the forming mechanism. In the figure, the paper feeding frame 41 adopts a paper feeding beam. The paper clamping device is used for clamping paper, which is a mature technology and can adopt a manipulator structure. In this embodiment, the paper clamping device 42 adopts a pneumatic clamp or an electric clamp. The paper feeding transverse moving transmission device 43 can be driven by a cylinder or a motor (such as a servo motor). In this embodiment, a motor with a synchronous belt and a synchronous wheel is used to drive the paper feeding frame to move transversely, and a transverse guide rail is configured for the stable movement of the paper feeding frame.

[0031] The paper feeding device 32 is located on one lateral side of the main conveyor belt 6. A three-mouth edge wrapping mechanism is arranged between the paper feeding device and the main conveyor belt. The paper moving device is respectively connected with the main conveyor belt, the three-mouth edge wrapping mechanism and the paper feeding device. The paper moving device sequentially moves the material from the main conveyor belt to the three-mouth edge wrapping mechanism and the paper feeding device. The paper feeding device is connected with the forming mechanism. Finally, the material is sent into the forming mechanism by the paper feeding device.

[0032] When the cardboard transfer mechanism is working, the paper transfer device 31 sucks the cardboard, lifts it, moves it horizontally, and lowers it to place it in the three-mouth hemming mechanism first, and then places it on the paper feeding tray 40. Then, the paper clamping device 42 clamps the cardboard on the paper feeding tray and transports it horizontally forward to the forming mechanism.

[0033] The main conveyor belt 6 of the paper box forming production line is arranged longitudinally, and the paper transfer pneumatic suction nozzle 33 moves transversely to cooperate with the conveying. The paper feeding device (paper feeding tray) is located on the transverse side of the main conveyor belt, forming a transverse and longitudinal layout structure, which makes the longitudinal length of the production line shorter and the layout more reasonable. In addition, the material cardboard is conveyed transversely from the main conveyor belt through the paper transfer pneumatic suction nozzle, and the cardboard and facial paper can be close to the edge of the main conveyor belt on the main conveyor belt, and the distance is shorter during transverse conveying, and the conveying efficiency is higher. The cardboard movement and transfer speed is faster and more stable. It meets the production and production needs of smaller-sized paper boxes and avoids the problem of difficulty in conveying and connecting corresponding small-sized cardboard and facial paper.

[0034] Among them, the pneumatic suction nozzle for paper transfer includes a front group of suction nozzles and a rear group of suction nozzles. The front group of suction nozzles and the rear group of suction nozzles are arranged horizontally, and the front group of suction nozzles is correspondingly matched and connected with the paper feeding tray; the paper clamping device has a clamp corresponding to the tail of the cardboard, and the opening of the clamp of the paper clamping device is correspondingly matched and connected with the paper supporting surface of the paper feeding tray.

[0035] In addition to being set up as a single station, the pneumatic suction nozzle for paper transfer can also be further optimized and set up as a double station structure. In the double station structure, the pneumatic suction nozzle for paper transfer 33 includes a front group suction nozzle 33A and a rear group suction nozzle 33B. The front group suction nozzle and the rear group suction nozzle are arranged horizontally, that is, the pneumatic suction nozzle for paper transfer is divided into two groups, one group is arranged in front in the horizontal direction, and the other group is arranged in the back in the horizontal direction. The two groups form a double station paper suction and transfer structure, and the paper transfer efficiency is higher. The front group suction nozzle corresponds to the paper feeding tray and is connected to the paper feeding tray, and the sucked cardboard can be placed on the paper feeding tray. The paper feeding tray is located in the forward direction (front side) of the lateral movement direction of the pneumatic suction nozzle for paper transfer. The front group suction nozzle cooperates to transfer the cardboard in the three-mouth hemming mechanism (such as the cardboard on the hemming support platform of the three-mouth hemming mechanism) and place it on the paper feeding tray 40, and then the paper clamping device sends the cardboard to the subsequent process; the rear group suction nozzle cooperates with the cardboard transfer to transfer the cardboard on the main conveyor belt to the three-mouth hemming mechanism. Of course, a set of suction nozzles (single station) can also be used, but the efficiency is low, and the paper-moving pneumatic suction nozzle needs to be moved from the main conveyor belt to the three-mouth hemming mechanism and then to the paper feed tray.

[0036] In addition, the paper feeding tray 40 adopts a transverse tray, and the paper clamping device is arranged between the transverse trays, which is easy to install and can also adjust the position of the transverse tray to meet the needs of paperboards of different sizes. The transverse tray can be connected to the longitudinal rod 44 through a tray seat so as to adjust different distances to meet different sizes. Of course, the paper feeding tray can also adopt an ordinary tray.

[0037] In addition to clamping other parts of the cardboard, the paper clamping device in this embodiment will be further optimized to clamp the tail of the cardboard. Specifically, the paper clamping device 42 has a clamp corresponding to the tail of the cardboard (such as a pneumatic clamp or an electric clamp), that is, the paper clamping device is a tail paper clamping device for clamping the tail of the cardboard. The tail refers to the position relative to the edge binding position of the three-mouth edge binding. The tail of the cardboard is clamped and moved forward horizontally to be fed into the forming mechanism. The paper clamping device only needs to retreat a short distance, and the forming mechanism can perform the forming work in time. There is no need to retreat a long distance, which is more efficient and can improve the processing speed. Otherwise, it is necessary to wait for the long distance retreat to be completed before the forming work can be performed. The opening of the clamp of the paper clamp corresponds to the paper support surface of the paper feeding tray. The opening and closing of the clamp of the paper clamp can be coordinated with clamping the cardboard with facial paper on the paper support surface of the paper feeding tray. The matching structure is more compact, the operation is stable, and the speed is faster. The mold of the turntable mold mechanism (including multiple equally divided molds, such as four equally divided horizontal molds) in the forming mechanism is rotating. When the mold rotates (revolution) to the first forming station on the front side of the paper clamping device (the direction of advance of the paper moving pneumatic suction nozzle), the paper clamping device cooperates to feed the cardboard under the mold, and the position of the mold corresponding to the bottom plate of the paper box faces the paper clamping device; the first forming station is provided with a top paper positioning device and a side folding surface device, which is the prior art and will not be described in detail.

[0038] The three-mouth edge wrapping mechanism 3 includes an edge wrapping support platform 51, an edge wrapping device 52 and an edge wrapping transmission device 53. It is a mature technology, and an improved and more reasonable structure will also be provided in this embodiment. In this embodiment, the three-mouth edge wrapping mechanism includes an edge wrapping support platform 51, an edge wrapping device 52 and an edge wrapping transmission device 53. The edge wrapping device includes an edge wrapping plate 54, which is used to fold the edge wrapping part of the facial paper and wrap it around the edge of the cardboard. The edge wrapping plate is located on the front side of the edge wrapping support platform 51. The edge wrapping support platform can be a secondary conveyor belt (such as a suction conveyor belt) or an edge wrapping support plate, etc., which can be used for placing materials (cardboard with facial paper on the bottom). The edge wrapping plate 54 is connected to the edge wrapping lifting seat 55, and the edge wrapping plate is set to slide back and forth relative to the edge wrapping lifting seat, so that the edge wrapping plate 54 is lifted and lowered with the edge wrapping lifting seat 55 and the edge wrapping plate 54 can also move back and forth relative to the edge wrapping lifting seat (such as sliding mode), and the direction of the edge wrapping plate moving back and forth refers to moving back and forth in the direction toward the edge wrapping support platform (the same as the horizontal running direction of the paper moving pneumatic suction nozzle). The edge-wrapping lifting seat is set on the frame for lifting and lowering, and the edge-wrapping lifting seat will be lifted and lowered on the frame. The edge-wrapping transmission device 53 includes an edge-wrapping lifting transmission device and an edge-wrapping front and back sliding transmission device. The edge-wrapping lifting transmission device 53 is connected to the edge-wrapping lifting seat 55 by transmission, and the edge-wrapping lifting transmission device drives the edge-wrapping lifting seat 55 to lift and lower on the frame; the edge-wrapping front and back sliding transmission device is connected to the edge-wrapping plate 54 by transmission, and the edge-wrapping front and back sliding transmission device drives the edge-wrapping plate 54 to move forward and backward on the edge-wrapping lifting seat 55. The three-mouth edge-wrapping mechanism has a reasonable structural layout, is more compact, and operates stably. The distance across the edge-wrapping plate in the front and back directions is shorter, and the space occupied by the edge-wrapping plate and the edge-wrapping lifting seat can be as small as possible, and provides a structural basis for faster transmission operation, providing support for improving the speed and efficiency of the production line. Figure 5 The material in the middle will be transported from right to left.

[0039] In this embodiment, a hemming slider 56 and an hemming rail 57 that cooperate with each other are arranged between the hemming plate and the hemming lifting seat, so that the hemming plate can slide back and forth relatively on the hemming lifting seat. For example, in the figure, the hemming slider is arranged on the hemming plate 54 (such as located on the lower side of the hemming plate), and the hemming rail is arranged on the hemming lifting seat 55 (such as located on the upper side of the hemming lifting seat). Of course, the arrangement can also be reversed. The hemming lifting seat 55 is connected to a vertical guide rod 58, and the vertical guide rod 58 is connected to an hemming guide sleeve 59 on the frame. The vertical guide rod will be stably lifted and lowered in the hemming guide sleeve. The structural layout is reasonable and the operation is stable. The hemming guide sleeve can be arranged on the hemming support plate 60 of the frame.

[0040] The edging transmission device 53 drives the edging plate 54 to move up and down and move forward and backward. There are many ways and they are relatively mature. In this embodiment, a more reasonable structure will be designed for further optimization. The edging lifting transmission device includes a first cam transmission part 61, which cooperates with the first cam transmission part 61 to drive the edging lifting seat 55 to move up and down; the edging front and back sliding transmission device includes a second cam transmission part 62, which cooperates with the second cam transmission part 62 to drive the edging plate 54 to slide forward and backward.

[0041] The first cam transmission part 61 and the second cam transmission part 62 are located on the same cam body, such as a double-sided cam body or a double-groove cam body; or the first cam transmission part and the second cam transmission part are located on two different cam bodies, that is, the first cam transmission part is located on one of the cam bodies, and the second cam transmission part is located on the other cam body. It is more convenient to adjust when the two cam bodies are located on two different cam bodies. The hemming transmission device uses the cam transmission part to cooperate with the transmission for hemming, which has a faster running speed, more stable operation, and a more reasonable mechanical structure.

[0042] On the basis of the cooperation of the cam transmission part, the edge-wrapping lifting transmission device in this embodiment also includes a first swing arm 63 and a first connecting rod 64, the first cam transmission part 61 is connected to the first swing arm 63, the first swing arm is connected to the first connecting rod, and the first connecting rod 64 is connected to the edge-wrapping lifting seat 55; when working, the first cam transmission part cooperates to drive the first swing arm to swing, the first swing arm 63 drives the first connecting rod 64 to drive the edge-wrapping lifting seat 55 to lift. The edge-wrapping front and back sliding transmission device in this embodiment also includes a second swing arm 65 and a second connecting rod 66, the second cam transmission part 62 is connected to the second swing arm 65, the second swing arm is connected to the second connecting rod 66, and the second connecting rod is connected to the edge-wrapping plate 54; when working, the second cam transmission part cooperates to drive the second swing arm to swing, the second swing arm drives the second connecting rod to drive the edge-wrapping plate (on the edge-wrapping lifting seat 55) to slide back and forth.

[0043] The cam transmission part can adopt a curved surface or a curved groove. For example, the curved groove is adopted, specifically, the first cam transmission part adopts the first curved groove, and the second cam transmission part adopts the second curved groove. Or as shown in the attached figure, the curved surface is adopted, the first cam transmission part 61 adopts the first curved surface, the edge-wrapping lifting transmission device also includes a first return spring 67 and the first return spring is connected to the edge-wrapping lifting seat 55 by transmission, and the edge-wrapping lifting seat is lifted and reset by the first return spring 67, and the first return spring can be connected to the edge-wrapping lifting seat or the first swing arm or the vertical guide rod by transmission; the second cam transmission part 62 adopts a second curved surface, the edge-wrapping forward and backward sliding transmission device also includes a second return spring 68 and the second return spring is connected to the edge-wrapping plate 54 by transmission, and the edge-wrapping plate is reset by sliding forward and backward by the second return spring, and the second return spring can be connected to the edge-wrapping plate or the second swing arm by transmission; the curved surface is adopted for convenient adjustment and processing.

[0044] When the first cam transmission part and the second cam transmission part are located on two different cam bodies, the two different cam bodies are coaxially connected to the cam drive shaft, and the cam drive shaft drives the cam bodies to rotate synchronously, and the coaxial drive is easy to install. Of course, it can also be installed on different drive shafts, but it is more troublesome and requires linkage.

[0045] The edge wrapping support platform 51 is equipped with an edge wrapping pneumatic suction nozzle 69, which sucks the cardboard and facial tissue placed on the edge wrapping support platform from the bottom, so that the position of the cardboard and facial tissue on the edge wrapping support platform is stable, so that the edge wrapping board can be smoothly edged. For example, when the edge wrapping support platform adopts an edge wrapping pallet, the corresponding edge wrapping pneumatic suction nozzle adopts a corresponding suction nozzle, or when a suction conveyor belt is adopted, the corresponding edge wrapping pneumatic suction nozzle directly adopts the suction hole on the conveyor belt. The edge wrapping pneumatic suction nozzle sucks the material when it is in a negative pressure state, and releases the material in another state. Compared with the edge wrapping pressing component structure with a lifting action set above the edge wrapping support platform, the edge wrapping pneumatic suction nozzle is more compact. In addition, the space above the edge wrapping support platform is not occupied, so that the cardboard and facial tissue can be grabbed or sucked and shifted. Of course, the edge wrapping pressing component structure can also be adopted, but the lifting stroke is increased during suction and grabbing, which affects the speed.

[0046] In the figure, the edge wrapping plate 54 and the edge wrapping support platform 55 are pressed obliquely, that is, the edge wrapping plate moves toward the edge wrapping support platform while descending to form an oblique descent, so as to achieve oblique pressure on the surface paper for edge wrapping, and the edge wrapping effect is better, with the effect of edge wrapping and pressing. The oblique pressure cooperation will be realized by the edge wrapping transmission device, for example, it is realized by the curve (i.e., curved surface or curved groove) design of the first cam transmission part 61 and the second cam transmission part 62 in the figure, and combined with the accompanying drawings, it is realized by the edge wrapping lifting transmission device with the first cam transmission part and the edge wrapping front and back sliding transmission device with the second cam transmission part. When the improved three-mouth hemming mechanism is working, after the laminated face paper and paperboard are placed on the hemming support platform, the excess face paper (i.e., the face paper of the hemming part) is exposed from the hemming support platform in the direction of the hemming plate, and under the action of the hemming lifting transmission device, the hemming plate 54 first rises along with the hemming lifting seat, and the hemming plate 54 is lifted up to fold the face paper of the hemming part upward, and then the hemming plate slides forward toward the hemming support platform under the action of the hemming forward and backward sliding transmission device, and the hemming lifting seat descends under the action of the hemming lifting transmission device while the hemming plate slides forward, completing the oblique pressure fit , the edge wrapping part of the face paper is pressed obliquely on the cardboard to achieve edge wrapping, which has a better edge wrapping effect and has the effect of edge wrapping and pressing; after completion, the edge wrapping plate rises with the edge wrapping lifting seat and separates from the face paper, and the edge wrapping plate retreats. The edge wrapping plate rises and separates from the face paper and the edge wrapping plate retreats at the same time to achieve oblique retreat coordination, or it can rise first and then retreat, and then the edge wrapping plate descends with the edge wrapping lifting seat to wait for the next edge wrapping; the edge wrapping plate 54 can descend to below the edge wrapping support platform or be flush with the edge wrapping support platform as the edge wrapping lifting seat descends 55, so that the face paper and the cardboard can cross the edge wrapping plate by lifting a small distance.

[0047] The figure shows a specific embodiment of an improved three-mouth hemming mechanism. An hemming slider 36 is provided on an hemming plate 54, and an hemming rail 57 is provided on an hemming lifting seat 55. The hemming slider is connected with the hemming rail. The hemming plate is located above the hemming lifting seat. An escape channel is provided on the hemming lifting seat. The hemming plate has a connecting seat 71, and the connecting seat passes through the escape channel 70. The hemming lifting seat 55 is connected to a vertical guide rod 58, and the vertical guide rod is connected to an hemming guide sleeve 59 on the frame. The lower part of the vertical guide rod has a connecting plate, and the connecting plate has a hinge seat (for the first connecting rod to be hinged). The hemming lifting transmission device includes a first cam transmission part 61, a first swing arm 63, a first connecting rod 64 and a first return spring 67. The front and rear sliding transmission device for hemming includes a second cam transmission part 62, a second swing arm 65, a second connecting rod 66 and a second return spring 68. The first cam transmission part is located on the first cam body, and the second cam transmission part is located on the second cam body. The first cam body and the second cam body are connected to the cam drive shaft in a transmission manner. The cam drive shaft is arranged below the hemming support platform. The first cam transmission part adopts a first curved surface, and the second cam transmission part adopts a second curved surface. The first cam transmission part is connected to the first cam roller 73 on the first swing arm in a transmission manner. The first swing arm is hinged on the frame through the first swing arm shaft. The first cam roller is arranged on the side of the first cam body. The first swing arm is connected to the first connecting rod in a transmission connection, the hinged seat connected to the edge wrapping lifting seat is connected to the first connecting rod in a transmission connection (hinged), the first return spring is connected between the connecting seat and the edge wrapping guide sleeve, and the first return spring is sleeved on the vertical guide rod 58; the second cam transmission part is connected to the second cam roller 74 on the second swing arm in a transmission connection, the second swing arm is hinged to the frame through the second swing arm shaft, the second cam roller is arranged on the side of the second cam body (such as the rear side), the second swing arm is connected to the second connecting rod in a transmission connection, the connecting seat of the edge wrapping plate is connected to the second connecting rod in a transmission connection (hinged), and the second return spring is connected between the second swing arm and the frame.

[0048] The edge wrapping support platform 51 can adopt an auxiliary conveyor belt (such as a suction conveyor belt) or an edge wrapping pallet; it can also be further improved, and the edge wrapping transmission device also includes an edge wrapping platform left and right moving transmission device, and the edge wrapping support platform and the edge wrapping platform left and right moving transmission device cooperate to drive the edge wrapping support platform to move left and right, so that the left and right directions can be corrected, so that the position is more accurate during subsequent molding. For example, the edge wrapping support platform using the auxiliary conveyor belt moves forward and backward in the left and right directions, and then the edge wrapping support platform using the edge wrapping pallet moves forward and backward in the left and right directions. The left and right moving transmission device of the edge wrapping platform can adopt a motor (such as a servo motor). For example, the edge wrapping support platform using the edge wrapping pallet is driven by a motor and a screw mechanism, and the auxiliary conveyor belt is driven by a motor.

[0049] In addition to using a pneumatic suction nozzle to fix the material on the edge support platform, a lifting action edge pressing component can also be used to fix the material on the edge support platform. Specifically, the edge transmission device also includes an edge pressing component, which is located above the edge support platform. The edge pressing component is connected to the edge lifting and pressing transmission device. The edge pressing component is driven by the edge lifting and pressing transmission device to lift and lower, and the edge support platform clamps and releases the material (cardboard and facial paper). The edge lifting and pressing transmission device can be driven by an independent motor or cylinder, or the edge lifting and pressing transmission device includes a third cam transmission part, the third cam transmission part cooperates to drive the edge pressing part to lift and lower, the third cam transmission part can use a third curved surface or a third curved groove, the third cam transmission part and the first cam transmission part and the second cam transmission part are located on the same cam body or on different cam bodies, and are coaxially driven or off-axis driven. Flannel can be set on the bottom surface of the edge plate 54 to avoid scratching or crushing the material.

[0050] The forming mechanism 5 also includes an upper side forming mechanism 7, which is arranged at the first forming station. The upper side forming mechanism 7 is used for forming the upper side of the paper box, and includes an upper folding surface device 76 and an upper veneer device, which is a mature technology. In this embodiment, an improved upper side forming mechanism with a more reasonable layout and neat structure will also be provided. The mounting frame 75 of the improved upper side forming mechanism is provided with an upper folding surface device 76, which includes a folding surface sliding seat 78 and a folding surface lifting bracket 79, and the folding surface lifting bracket 83 is provided for the installation of a folding surface component 89, and the folding surface component 89 installed thereon can adopt a folding panel (such as a shovel plate, etc.). The folding surface lifting bracket 83 is connected to the folding surface sliding seat, and the folding surface lifting bracket 79 is set to be lifted relative to the folding surface sliding seat 78. The folding surface sliding seat is set to slide horizontally on the mounting frame 75. A horizontal sliding pair (such as a horizontal guide rail and a slider) is set between the mounting frame 75 and the folding surface sliding seat 78. The folding surface lifting bracket can be lifted and lowered on the folding surface sliding seat, and can slide horizontally with the folding surface sliding seat. A lifting sliding pair (such as a guide rail and a slider) can be set between the folding surface lifting bracket and the folding surface sliding seat. The folding surface sliding seat 78 is connected to the folding surface horizontal sliding transmission device, and the folding surface horizontal sliding transmission device drives the folding surface sliding seat 78 to slide horizontally on the mounting frame 75, and the horizontal refers to the horizontal direction. The mounting frame 75 is also provided with an inclined track 84, on which the inclined track 84 is provided with a guide component, which moves on and along the inclined track, and which is hinged on the folding surface lifting bracket 79 (for example, the guide component is hinged by means of a rotating shaft 85), and which can rotate relative to the folding surface lifting bracket 79. When the folding surface lifting bracket slides laterally with the folding surface sliding seat, the guide component will move obliquely up and down along the inclined track 84, and cooperate with each other to drive the folding surface lifting bracket 79 to rise and fall on the folding surface sliding seat 78.

[0051] The upper folding surface device of the improved upper side forming mechanism makes its layout more reasonable. The operation mode of the folding surface lifting bracket and the folding surface components does not require swinging space, but adopts lifting and horizontal left and right movement (same as the longitudinal direction of the main conveyor belt) to perform oblique displacement, making it smaller and more compact, and the corresponding installation frame is smaller in size. The lifting and lateral movement coordination mode is more uniform and stable than the swing mode. In order to meet the production needs of different specifications, its oblique adjustment is simpler. It only needs to adjust the oblique angle of the oblique track installation to meet the different lifting height requirements, without affecting other components and transmission structures.

[0052] The folding surface horizontal sliding transmission device can adopt a transmission drive mode such as a cylinder or a motor. In this embodiment, the motor mode is adopted, specifically, the folding surface horizontal sliding transmission device includes a folding surface driving motor 86 (such as a servo motor), a folding surface synchronous wheel 87 and a folding surface synchronous belt 88, the folding surface driving motor is connected to the folding surface synchronous wheel, the folding surface synchronous wheel is connected to the folding surface synchronous belt, the folding surface driving motor drives the folding surface synchronous wheel to rotate, the folding surface synchronous wheel drives the folding surface synchronous belt wound thereon to run, a folding surface horizontal slide rail is set on the mounting frame, the folding surface sliding seat is arranged on the folding surface horizontal slide rail, the folding surface horizontal slide rail provides the folding surface sliding seat with stable horizontal sliding, the folding surface sliding seat is connected to the folding surface synchronous belt, and the folding surface synchronous belt drives the folding surface sliding seat to move horizontally; using this mode for transmission, the running speed is fast, the force on the folding surface lifting bracket and the folding surface components is uniform and stable, and the motor is not easy to shake.

[0053] The mounting frame 75 includes a folding surface mounting plate portion 75A, on which a folding surface horizontal sliding transmission device is mounted, a folding surface synchronous wheel, a folding surface synchronous belt, a folding surface horizontal slide rail and a folding surface sliding seat are located on the front of the folding surface mounting plate portion, and a folding surface driving motor, a folding surface lifting bracket and an oblique track are located on the back of the folding surface mounting plate portion. The upper folding surface device has a reasonable layout and is easy to install.

[0054] In the figure, the inclined track 84 is an inclined track with a groove (i.e., a guide groove), and the guide component is a guide wheel, which is located in the groove of the inclined track; it is easy to process and install, and the guide wheel is connected to the folding surface lifting bracket through a rotating shaft 85. Of course, the inclined track and the guide component can also be matched in a manner such as a slider matching a guide rail or a guide sleeve matching a guide rod.

[0055] The mounting frame 75 of the improved upper side molding mechanism is also provided with an upper veneer device 77. The upper veneer device is a mature technology. The present application will also provide an improved structure. The improved upper veneer device includes a veneer sliding seat 82 and a veneer bracket 83. The veneer bracket is provided for the veneer component 89 to be installed. The veneer component 89 installed thereon can adopt a veneer roller (such as a rubber roller or a brush roller, etc.). The veneer bracket is connected to the veneer sliding seat, which is horizontally slidably arranged on the mounting frame. The veneer sliding seat is connected to the veneer horizontal sliding transmission device. The veneer horizontal sliding transmission device drives the veneer sliding seat and the veneer bracket to slide horizontally on the mounting frame. The veneer sliding seat and the veneer bracket can be separately arranged or integrally arranged. The separate arrangement can adjust the relative position to meet different planning requirements. The layout of the upper veneer device is more reasonable. The operation mode of the veneer bracket and the veneer component does not require a swinging space, occupies less space and is more compact. Different from the swinging mode, the horizontal sliding mode is more stable and more evenly stressed. In addition, the folding sliding seat and the veneer bracket adopt horizontal left and right sliding and transmission matching structure, which makes the overall structure more neat and the visual effect more coordinated.

[0056] The veneer horizontal sliding transmission device can adopt a transmission drive mode such as a cylinder or a motor. In this embodiment, the motor mode is adopted, specifically, the veneer horizontal sliding transmission device includes a veneer drive motor 90 (such as a servo motor), a veneer synchronous wheel 91 and a veneer synchronous belt 92, the veneer drive motor is connected to the veneer synchronous wheel, the veneer synchronous wheel is connected to the veneer synchronous belt, the veneer drive motor drives the veneer synchronous wheel to rotate, and the veneer synchronous wheel drives the veneer synchronous belt wound thereon to run; a veneer horizontal slide rail 93 is set on the mounting frame 75, the veneer sliding seat is arranged on the veneer horizontal slide rail, the veneer horizontal slide rail is provided for the veneer sliding seat to move horizontally, the veneer sliding seat is connected to the veneer synchronous belt, and the veneer synchronous belt drives the veneer bracket and the veneer sliding seat to move horizontally; using this mode for transmission, the running speed is fast, the force on the veneer bracket and the veneer component is uniform and stable, and the motor is not easy to shake.

[0057] The mounting frame 75 includes a veneer mounting plate portion 75B, a veneer horizontal sliding transmission device is mounted on the veneer mounting plate portion, a veneer synchronous wheel, a veneer synchronous belt, a veneer horizontal slide rail and a veneer bracket are located on the front of the veneer mounting plate portion, and a veneer drive motor is located on the back of the veneer mounting plate portion. The upper veneer device has a reasonable layout and is easy to install. It corresponds to the upper folding surface device, and the visual effect is more coordinated and neat on the left and right. The veneer mounting plate portion and the folding surface mounting plate portion can be separately arranged or integrally arranged.

[0058] The box-out station and the box-mouth edge-binding station of the forming machine can adopt the structure in the prior art, that is, the box-mouth edge-binding station is a process before the box-out station, and the box-mouth edge-binding is completed first, and then the box is finally out. It can also be optimized to the optimized structure in this embodiment, specifically, the forming machine includes the box-out station I and the box-mouth edge-binding station II, the box-mouth edge-binding station is equipped with a box-mouth edge-binding mechanism 94, the box-mouth edge-binding mechanism 94 includes an edge-binding press frame 95 and an edge-binding plate device, and the edge-binding plate device includes an edge-binding plate 96; the edge-binding press frame 95 is connected to the pressure lifting transmission device 101, and the pressure lifting transmission device 101 cooperates to drive the edge-binding press frame 95 to rise and fall. The box mouth edge binding station is arranged after the box discharging station, and the box discharging station I is connected with the box mouth edge binding station II by the box discharging device 97, and the box discharging station is connected with the box mouth edge binding station by the box discharging device, and the box discharging device 97 removes the carton on the carton mold at the box discharging station and moves it to the box mouth edge binding station. The box mouth edge binding mechanism 94 also includes an edge binding bracket 98, and the lower part of the edge binding press frame is connected with a pressure surface, and the pressure surface is located above the edge binding bracket. When the carton is removed from the carton mold in a horizontal state, the box mouth is placed on the edge binding bracket 98 with the box mouth facing forward (toward the mold direction), and the edge binding press frame 95 can be lowered from the top. There is a box space between the edge binding bracket and the pressure surface (for the horizontal carton to be accommodated and placed), and the carton will be located in the accommodating space between the pressure surface and the edge binding bracket, and the pressure surface is lowered to cooperate with the contact and fixation of the carton, so as to stably and smoothly cooperate with the edge binding of the uppermost box mouth. The pressure surface rises and falls synchronously with the edge binding press frame. The edge binding plug plate is located at the front side of the box space, and the edge binding plug plate device is used to insert the edge binding plug plate into the box mouth of the paper box. The edge binding plug plate device includes an edge binding plug plate 96, which is set to be lifted and moved forward and backward, that is, the edge binding plug plate can be lifted and moved forward and backward (forward and backward), and the forward and backward movement and lifting action can be carried out simultaneously (the edge binding plate will move obliquely) or separately. The edge binding plug plate 96 is located at the front side of the box space and is lifted and moved forward and backward to cooperate with the edge binding action; Edge binding plug plate device technology It is relatively mature. Mainly, after the paper box is fixed, the edge wrapping plate is located in front of the pressure surface (the box mouth faces the front side), and the edge wrapping plate descends to fold the surface paper of the edge wrapping part downward, and then fold it inward to the box mouth and wrap it around the inner wall of the box mouth; the edge wrapping plate device is a mature technology, and can adopt an edge wrapping plate hinged on a parallel swing arm group to perform a structure in which the edge wrapping plates are lifted and lowered while moving back and forth at the same time, or adopt an edge wrapping plate structure in which the lifting and moving back and forth are separated, etc. These edge wrapping structures for cardboard or paper box are used for box mouth wrapping.

[0059] In this optimized structure, the box mouth edging station II is arranged after the box discharging station I, and the box discharging device removes the carton on the carton mold at the box discharging station and discharging the carton, and the box discharging device moves the carton to the box mouth edging station. The box discharging device technology is relatively mature, and the left and right hook plates can be telescopically coordinated to hook the carton and move it out of the box, or the left and right clamps can be coordinated to clamp the carton and move it out of the box, or a suction nozzle can be used to suck and move it out of the box, which will not be repeated. The station arrangement is redesigned, and the box mouth edging station is connected and arranged after the box discharging station, which can not only realize the removal of the carton from the mold (realizing demolding and box discharging), but also can perform edging of the fourth box mouth after detaching from the mold, so that the fourth box mouth does not need to rely on the carton mold when edging, avoiding interference from the mold, meeting the fourth box mouth edging requirements of smaller-sized carton, and combining the box mouth edging of the box discharging and the fourth box mouth, which is efficient and fast. Among them, the box mouth edging mechanism does not need to rely on the carton mold to avoid interference from the mold, and can be suitable for the box mouth edging requirements of small-sized carton.

[0060] In this embodiment, a more efficient and practical box discharging device is also designed. The box discharging device 97 includes a box discharging component 102 and a box discharging movable seat 99. The box discharging component is connected to the box discharging movable seat. The box discharging component is arranged on the left and right sides, so that the box discharging component can act on the box from the left and right sides of the box. After the box discharging component acts on the box, it moves with the box discharging movable seat to remove the box from the mold. The box discharging movable seat 99 is connected to a box discharging movable transmission device 100. The box discharging movable transmission device can be driven by a cylinder or a motor. The box discharging movable transmission device drives the box discharging movable seat to move back and forth, and the box discharging movable seat drives the box discharging component to move back and forth. The box taking component 102 can be a telescopic splint or a telescopic hook plate (with a cylinder telescopic action) or a pneumatic suction nozzle; it can also be a one-way spring sheet that moves toward the mold and the paper box. The one-way spring sheet is pressed and moves along the outside of the paper box. After the one-way spring sheet reaches the box opening, it pops out and can hook on the box opening, and move back to remove the paper box from the mold; there are many ways to take the box component, which will not be described here; in the figure, the box taking component 102 adopts a one-way hook box opening component, which includes a hook box seat and a hook box block, and the hook box block is connected to the hook box seat through a pin shaft. The hook box block is equipped with a hook box spring, and the hook box spring is used to tilt the part of the hook box block facing backward (toward the box mouth edge wrapping station). When the box taking component moves forward, the hook box block is compressed by the side wall of the paper box to overcome the compression of the hook box spring until the hook box block moves to the box mouth of the paper box. The part of the hook box block facing backward (i.e. the hook mouth part, which can be equipped with flannel to prevent scratches) will pop out and tilt out, which can be used to hook the box mouth of the paper box; further improvement, the box taking component is connected to the box out moving seat through the mounting frame 103, so as to set multiple groups and adjust the front and rear positions of the box taking component. The front part of the edge wrapping bracket is connected to the front bracket part, and the front bracket part is connected to the box out station. After the paper box is removed from the mold and demolded, it can be supported by the front bracket part, and the paper box can be smoothly moved to the box mouth edge wrapping station with the help of the box taking component, so that the operation is more stable, and it is also convenient for the mold revolution at the box out station. For example, the front bracket part extends to the bottom of the mold at the box out station and leaves a demolding and rotation gap between them.

[0061] In this embodiment, the box taking component can be set in one group; or as shown in the figure, the box taking component 102 can be set in a front group component and a rear group component, that is, the box taking component is set in a front group box taking component and a rear group box taking component, the front group component removes the paper box from the mold and moves it to the box mouth edge wrapping station, and the rear group component cooperates to move the paper box with the edge wrapped at the box mouth edge wrapping station backward; the front and rear groups of box taking components cooperate to take the box, which is more efficient. The front group and the rear group of box taking components can be connected to the same box out moving seat through a mounting frame, or are respectively set on different box out moving seats.

[0062] The edge wrapping plate device is a mature technology. In the present embodiment, a more reasonably structured and compact edge wrapping plate device is additionally designed. The edge wrapping plate 96 of the edge wrapping plate device is connected to an inclined slide plate 104, and the inclined slide plate 104 is arranged on an inclined slide rail 105, and the inclined slide rail is arranged to be raised and lowered; the inclined slide rail 104 can slide on the inclined slide rail 105 and rise and fall with the inclined slide rail; when working, the edge wrapping plate can descend to fold down the part of the facial paper that needs to be edge wrapped, and then the edge wrapping plate is obliquely risen and moved forward through the cooperation of the inclined slide plate and the inclined slide rail, and the edge wrapping plate moves toward the box opening of the paper box and rises, and the edge wrapping plate is inserted into the box opening of the paper box to complete the edge wrapping, and the edge wrapping plate can both fold the facial paper into the box opening and press the facial paper against the inner wall of the box opening, and the edge wrapping effect is better. The oblique slide is connected to the oblique reciprocating front and back moving transmission device, and the oblique reciprocating front and back moving transmission device 106 cooperates to drive the oblique slide to perform oblique reciprocating movement on the oblique slide rail. The oblique slide rail is set to be lifted and lowered, and the lifting of the oblique slide rail can be configured with a power drive (as shown in the figure) or the oblique slide rail is connected to the edge binding press frame and is lifted and lowered with the edge binding press frame. In the figure, the oblique slide rail is connected to the edge binding press frame and is lifted and lowered with the edge binding press frame, and the structure is compact. During the edge binding process of the box mouth, the edge binding plug plate is obliquely raised and moved forward (moved toward the inside of the box mouth) to complete the edge binding, and can be obliquely lowered and retreated after the edge binding is completed, so that the facial paper can be folded into the box mouth, and the facial paper can be pressed against the inner wall of the box mouth, moved forward inward and moved upward, and the edge binding effect is good. The edge binding plug plate device is stable in operation, fast in operation speed, and compact.

[0063] As shown in the attached figure, the edge wrapping press frame 95 adopts an edge wrapping press plate, and the pressure surface is located at the lower side of the edge wrapping press frame (that is, the pressure surface is located at the lower side of the edge wrapping press plate), and the oblique slide rail 105 is connected to the edge wrapping press frame 95 and is set to rise and fall with the edge wrapping press frame. The oblique slide rail is transmission-connected with the pressure lifting transmission device 101 through the edge wrapping press frame, and the oblique slide rail will rise and fall synchronously with the edge wrapping press frame, and the edge wrapping press frame and the oblique slide rail are driven to rise and fall by the pressure lifting transmission device, and the edge wrapping plug plate is located below the pressure surface, with a compact structure and faster speed; in the figure, the edge wrapping plug plate 96 rises and falls synchronously with the edge wrapping press frame, and the edge wrapping press frame descends and its pressure surface contacts the paper box, cooperates to support the fixed paper box, and the edge wrapping plug plate descends to fold down the part of the facial paper that needs to be edged, and then the edge wrapping plug plate rises obliquely through the oblique slide plate and the oblique slide rail. The edge wrapping plug plate moves toward the box mouth of the paper box and rises, and the edge wrapping plug plate is inserted into the box mouth of the paper box to complete the edge wrapping, and then resets.

[0064] In the figure, the pressure lifting transmission device 101 is connected to the edge mounting plate 107; the oblique reciprocating front and back moving transmission device 106 is connected to the edge pressing frame 95, and the oblique slide rail 105 is connected to the edge pressing frame 95. The pressure lifting transmission device 101 can be driven by a cylinder or a motor, and the pressure cylinder is used in the figure, and the oblique reciprocating front and back moving transmission device 106 can be driven by a cylinder or a motor, and the oblique push-pull cylinder is used in the figure.

[0065] Further optimization, as shown in the figure, the edge mounting plate 107 is connected to the edge bracket 108, the edge pressing frame and the edge plugging plate device are connected to the edge mounting plate 107, and in this embodiment, a lifting and adjusting device is set between the edge mounting plate and the edge bracket, and the edge mounting plate is lifted and adjusted on the edge bracket through the lifting and adjusting device, and the height of the edge mounting plate on the edge bracket is adjusted, so that the edge pressing frame, the edge plugging plate, etc. connected to the edge mounting plate are adjusted, so as to meet the requirements of different specifications and adjust the pressure of the pressure surface when contacting the paper box. The lifting and adjusting device in the figure adopts a lifting screw adjustment device including a screw 109 (which can be equipped with a hand wheel or a motor), a screw seat 110 is set on the edge bracket for the screw to rotate, a screw nut 111 is connected to the edge pressing frame and is connected to the screw, and a lifting guide pair 112 (such as a guide rail and a slider) is also set between the edge mounting plate and the edge bracket.

[0066] The pressure lifting transmission device 101 is connected between the edge mounting plate 107 and the edge pressing frame 95; the pressure lifting transmission device includes a pressure cylinder, which is connected to the pressure cylinder mounting seat, which is connected to the edge mounting plate, and the piston rod of the pressure cylinder is connected to the edge pressing frame. In the figure, the edge pressing frame is driven by the pressure cylinder to lift on the edge mounting plate. In order to stabilize the lifting, a guide rail pair can also be set on the edge mounting plate and the edge pressing frame bracket. The oblique reciprocating front and back moving transmission device 106 is connected to the edge pressing frame; the oblique reciprocating front and back moving transmission device includes an oblique push-pull cylinder, which is connected to the oblique push-pull cylinder mounting seat, which is connected to the edge pressing frame, and the piston rod of the oblique push-pull cylinder is connected to the oblique slide plate. In the figure, the oblique push-pull cylinder drives the oblique slide plate to slide back and forth on the oblique slide rail.

[0067] The inclined slide rail is set low in the front and high in the back. When working, the carton is in a horizontal state with its opening facing forward. The carton is placed on the edge wrapping bracket. When the edge wrapping plug plate rises obliquely on the inclined slide rail, the edge wrapping plug plate will rise obliquely from the front and bottom to the back and up, press against the inner wall of the side wall of the carton pressed by the pressure surface, and move inward and upward.

[0068] Further optimization is performed, the edging plug plate has an upper horizontal mating surface. When the edging plug plate is inserted into the box opening, the upper horizontal mating surface can more smoothly cooperate with the inner wall of the box opening, and the edging is relatively smoother.

[0069] The box mouth hemming mechanism also includes a box tail limit plate 113, which is set to be lifted or reciprocated horizontally. The lifting or reciprocating movement of the box tail limit plate can be driven by a cylinder or a motor. The paper box is limited by the movement of the box tail limit plate, so that the paper box can be placed smoothly and accurately in the position to wait for the box mouth hemming. The box tail limit plate can be lowered from the top or raised from the bottom or moved horizontally from left to right or from right to left to limit, and reset when it returns. In the figure, the box tail limit plate descends from the top to reach the limit position, and the box tail limit plate is connected to the limit plate lifting transmission device (such as a cylinder or a motor, a cylinder in the figure), and the limit plate lifting transmission device is connected to the hemming press frame. The box tail limit plate rises and falls with the hemming press frame, and at the same time, it is driven to rise and fall relative to the hemming press frame through the limit plate lifting transmission device, and the running speed is faster. The reciprocating setting of the limit plate at the tail of the box can enable the paper box to be transported from front to back, and when it stops at the box mouth edge wrapping mechanism, it cooperates with the limit to facilitate the box mouth edge wrapping, and finally resets the paper box to be output backward. In addition, limit components (such as limit rods or limit plates or limit steps, etc.) can be set on the left and right sides of the edge wrapping bracket to limit the left and right positions of the paper box, further making the position of the paper box in the box mouth edge wrapping mechanism more stable and accurate, and further optimizing the limit components to be provided with a trumpet (such as chamfers or rounded corners, etc.) so that the paper box can be smoothly put into place when it is separated from the mold and taken out of the box component (especially hooked to take out the box); the edge wrapping bracket in the figure includes a left bracket and a right bracket, and the positions of the left bracket and the right bracket can be adjusted to meet the processing requirements of different sizes, and the limit components can be connected to the left bracket and the right bracket. Of course, the edge wrapping bracket can adopt a support rod, a support plate or a conveyor belt (such as a suction conveyor belt), etc., and when a conveyor belt is adopted, it can cooperate to output the paper box backward. It can also be improved that the box tail limit plate can be adjusted forward and backward on the lifting plate frame to meet the needs of different specifications.

Claims

1. A paper box forming production line includes a conveyor belt device and a forming machine. The forming machine includes a three-mouth hemming mechanism, a paperboard transfer mechanism and a forming mechanism. The conveyor belt device includes a main conveyor belt, which is arranged longitudinally. The characteristics are: The paperboard transfer mechanism includes a paper transfer device and a paper feeding device. The paper moving device includes a paper moving pneumatic suction nozzle, a paper moving rack and a paper moving seat. The paper moving pneumatic suction nozzle is connected to the paper moving rack. The paper moving rack is arranged on the paper moving seat. A paper moving rack lifting transmission device is arranged between the paper moving rack and the paper moving seat. The paper moving seat is connected to the paper moving transverse moving transmission device. The paper feeding device includes a paper feeding support plate, a paper feeding frame and a paper clamping device, the paper clamping device is connected to the paper feeding frame, the paper feeding frame is connected to the paper feeding transverse moving transmission device, and the paper clamping device is connected to the paper feeding support plate; The paper feeding device is located on one lateral side of the main conveyor belt, a three-mouth edge wrapping mechanism is arranged between the paper feeding device and the main conveyor belt, the paper moving device is respectively connected with the main conveyor belt, the three-mouth edge wrapping mechanism and the paper feeding device, and the paper feeding device is connected with the forming mechanism.

2. The paper box forming production line according to claim 1, characterized in that: The pneumatic suction nozzle for paper transfer includes a front group of suction nozzles and a rear group of suction nozzles. The front group of suction nozzles and the rear group of suction nozzles are arranged horizontally, and the front group of suction nozzles are correspondingly matched and connected with the paper feeding tray; the paper clamping device has a clamp corresponding to the tail of the cardboard, and the opening of the clamp of the paper clamping device is correspondingly matched and connected with the paper supporting surface of the paper feeding tray.

3. The carton forming production line according to claim 1, characterized in that: The three-mouth hemming mechanism includes an hemming support platform, an hemming device and an hemming transmission device. The hemming device includes an hemming plate, which is located at the front side of the hemming support platform and is connected to the hemming lifting seat. The hemming plate is slidably arranged relative to the hemming lifting seat. The hemming transmission device includes an hemming lifting transmission device and an hemming front and back sliding transmission device. The hemming lifting transmission device is transmission-connected to the hemming lifting seat, and the hemming front and back sliding transmission device is transmission-connected to the hemming plate.

4. The carton forming production line according to claim 3, characterized in that: The hemming lifting transmission device includes a first cam transmission part, and the hemming front and rear sliding transmission device includes a second cam transmission part; The edge-wrapping lifting transmission device also includes a first swing arm and a first connecting rod, the first cam transmission part is transmission-connected to the first swing arm, the first swing arm is transmission-connected to the first connecting rod, and the first connecting rod is transmission-connected to the edge-wrapping lifting seat; The front and rear sliding transmission device for hemming also includes a second swing arm and a second connecting rod, the second cam transmission part is connected to the second swing arm in a transmission manner, the second swing arm is connected to the second connecting rod in a transmission manner, and the second connecting rod is connected to the hemming plate in a transmission manner; The first cam transmission part adopts a first curved surface, and the edge-wrapping lifting transmission device also includes a first return spring, and the first return spring is transmission-connected to the edge-wrapping lifting seat; The second cam transmission part adopts a second curved surface, and the front and rear sliding transmission device of the hemming also includes a second return spring, and the second return spring is transmission-connected with the hemming plate.

5. The paper box forming production line according to claim 3, characterized in that: The edge wrapping lifting seat is lifted and lowered on the frame, the edge wrapping transmission device is connected to the frame, the edge wrapping plate and the edge wrapping support platform are obliquely pressed together, and the edge wrapping support platform is equipped with an edge wrapping material suction pneumatic suction nozzle.

6. The paper box forming production line according to claim 1, characterized in that: The forming mechanism also includes an upper side forming mechanism, and an upper folding surface device is provided on the mounting frame of the upper side forming mechanism. The upper folding surface device includes a folding surface sliding seat and a folding surface lifting bracket for installing the folding surface components. The folding surface lifting bracket is connected to the folding surface sliding seat, and the folding surface lifting bracket is set to rise and fall relative to the folding surface sliding seat. The folding surface sliding seat is set to slide horizontally on the mounting frame, and the folding surface sliding seat is connected to the folding surface horizontal sliding transmission device. An inclined track is also provided on the mounting frame, and a guide component is provided on the inclined track. The guide component is hinged on the folding surface lifting bracket.

7. The carton forming production line according to claim 6, characterized in that: The folding surface horizontal sliding transmission device includes a folding surface driving motor, a folding surface synchronous wheel and a folding surface synchronous belt. The folding surface driving motor is connected to the folding surface synchronous wheel in transmission, and the folding surface synchronous wheel is connected to the folding surface synchronous belt in transmission. A folding surface horizontal slide rail is arranged on the mounting frame, and the folding surface sliding seat is arranged on the folding surface horizontal slide rail, and the folding surface sliding seat is connected to the folding surface synchronous belt; the mounting frame includes a folding surface mounting plate part, and the folding surface horizontal sliding transmission device is installed on the folding surface mounting plate part. The folding surface synchronous wheel, the folding surface synchronous belt, the folding surface horizontal slide rail and the folding surface sliding seat are located on the front side of the folding surface mounting plate part, and the folding surface driving motor, the folding surface lifting bracket and the inclined track are located on the back side of the folding surface mounting plate part; the inclined track adopts an inclined track with a groove, and the guide component adopts a guide wheel, and the guide wheel is located in the groove of the inclined track; the mounting frame is also provided with an upper veneer device, and the upper veneer device includes a veneer sliding seat and a veneer The veneer bracket is installed on the veneer component, the veneer bracket is connected to the veneer sliding seat, the veneer sliding seat is horizontally slidably arranged on the mounting frame, and the veneer sliding seat is connected to the veneer horizontal sliding transmission device; the veneer horizontal sliding transmission device includes a veneer driving motor, a veneer synchronous wheel and a veneer synchronous belt, the veneer driving motor is transmission-connected to the veneer synchronous wheel, the veneer synchronous wheel is transmission-connected to the veneer synchronous belt, a veneer horizontal slide rail is arranged on the mounting frame, the veneer sliding seat is arranged on the veneer horizontal slide rail, and the veneer sliding seat is transmission-connected to the veneer synchronous belt; the mounting frame includes a veneer mounting plate part, the veneer horizontal sliding transmission device is installed on the veneer mounting plate part, the veneer synchronous wheel, the veneer synchronous belt, the veneer horizontal slide rail and the veneer bracket are located on the front side of the veneer mounting plate part, and the veneer driving motor is located on the back side of the veneer mounting plate part; the folding surface component adopts a folding plate, and the veneer component adopts a veneer roller.

8. The paper box forming production line according to claim 1, characterized in that: The forming machine includes a box discharging station and a box mouth edge wrapping station. The box mouth edge wrapping station is equipped with a box mouth edge wrapping mechanism. The box mouth edge wrapping mechanism includes an edge wrapping press frame and an edge wrapping inserting plate device. The edge wrapping inserting plate device includes an edge wrapping inserting plate. The edge wrapping press frame is connected with a pressure lifting transmission device. The box discharging station is arranged behind the box discharging station. The box discharging station and the box mouth edge wrapping station are connected by the box discharging device. The box mouth edge wrapping mechanism also includes an edge wrapping bracket. A pressure surface is connected to the bottom of the edge wrapping press frame. The pressure surface is located above the edge wrapping bracket. There is a box containing space between the edge wrapping bracket and the pressure surface. The edge wrapping inserting plate is located on the front side of the box containing space.

9. The paper box forming production line according to claim 1, characterized in that: The box discharging device includes a box taking component and a box discharging moving seat. The box taking component is connected to the box discharging moving seat. The box taking component is arranged on the left and right sides. The box discharging moving seat is connected to the box discharging moving transmission device; the front part of the edging bracket is connected to the front bracket part, and the front bracket part is connected to the box discharging station; the box taking component is arranged in a front group and a rear group; the box taking component adopts a one-way hook box mouth component, and the box taking component is connected to the box discharging moving seat through a mounting frame.

10. The paper box forming production line according to claim 8, characterized in that: The edge-wrapping plug plate is connected to the oblique slide plate, which is arranged on the oblique slide rail, which is connected to the oblique reciprocating front-back moving transmission device, and the oblique slide rail is arranged with the front lower and the rear higher; the oblique slide rail is connected to the edge-wrapping press frame, which adopts the edge-wrapping press plate, and the pressure surface is located at the lower side of the edge-wrapping press frame; the edge-wrapping plug plate is located below the pressure surface; The oblique reciprocating front and back moving transmission device is connected to the edge binding press frame; The edge pressing frame and the edge inserting plate device are connected to the edge mounting plate, the edge mounting plate is connected to the edge bracket, and a lifting and adjusting device is arranged between the edge mounting plate and the edge bracket; the pressure lifting and transmission device is connected between the edge mounting plate and the edge pressing frame; The edge plug plate is arranged to be lifted and lowered and to be movable forward and backward, and the edge plug plate has an upper horizontal matching surface; The box mouth edge wrapping mechanism also includes a box tail limit plate, which is arranged to be lifted or reciprocated horizontally.

Images