Semi-automatic box stapling machine and box stapling method

Abstract

The present application relates to a semi-automatic box nailing machine and a box nailing method, and relates to the technical field of carton production. It includes a frame, a nailing mechanism, a feed assembly and a feed delivery assembly; the feed assembly includes an upper feed roller group, a lower feed roller group, an upper support plate and a lower support plate; the upper feed roller group is located directly above the lower feed roller group, and the upper feed roller group and the lower feed roller group together form a feed port; the upper support plate and the lower support plate are horizontally arranged in the feed port, the length direction of the upper support plate and the lower support plate are parallel to the radial direction of the upper feed roller group, the upper support plate and the lower support plate together form a accommodating cavity, the upper support plate side surface is provided with an upper lap groove along its length direction, and the lower support plate side surface is provided with a lower lap groove along its length direction; the feed delivery assembly is arranged at the discharge end of the feed assembly, and the nailing mechanism is arranged on the frame. The present application has the effect of improving the binding efficiency of cartons.

Description

Technical Field

[0001] The present application relates to the technical field of carton production, and in particular to a semi-automatic carton stapler and a carton stapler method. Background Art

[0002] During the carton production process, a carton stapler is needed to staple the two ends of the carton. Existing carton staplers include fully automatic carton staplers and semi-automatic carton staplers. Although fully automatic carton staplers do not require manual feeding, the cost is too high; semi-automatic carton staplers are favored by most carton manufacturers due to their low cost.

[0003] The patent document with application number 201520393710.5 discloses a servo high-speed manual box nailing machine, including a frame, a nailing mechanism, an estimation mechanism, an electric control box and a foot switch. The frame is composed of a base, a column, a crossbeam and a large arm. The column is arranged on the upper part of the base, the crossbeam is arranged on the upper part of the column, the large arm is arranged on the top of the crossbeam, the electric control box is arranged on the base on one side of the column, and the foot switch is electrically connected to the electric control box.

[0004] With respect to the above-mentioned related technologies, the inventor believes that when using the above-mentioned semi-automatic carton stapler to staple cartons, the staff puts one carton on the beam at a time for stapleing, resulting in low efficiency in the carton binding process. Summary of the invention

[0005] In order to improve the binding efficiency of cartons, the present application provides a semi-automatic carton stapler and a carton stapler method.

[0006] In the first aspect, the semi-automatic box stitching machine provided in the present application adopts the following technical solution:

[0007] A semi-automatic box stapling machine comprises a frame and a stapling mechanism for stapling two cartons, a feeding assembly for feeding the two cartons and a conveying assembly for conveying the two cartons;

[0008] The two cartons are overlapped and the bottom panels of the two cartons are attached;

[0009] The feeding assembly includes an upper feeding roller group, a lower feeding roller group, an upper supporting plate for supporting the upper carton, and a lower supporting plate for supporting the lower carton;

[0010] The upper feed roller group is located directly above the lower feed roller group, and the upper feed roller group and the lower feed roller group together form a feed port for two cartons to pass through, and the upper feed roller group and the lower feed roller group rotate in opposite directions;

[0011] The upper support plate and the lower support plate are horizontally arranged in the feed port, the length directions of the upper support plate and the lower support plate are parallel to the radial direction of the upper feed roller group, the upper support plate and the lower support plate jointly form a receiving cavity for receiving two carton bottom plates, the upper support plate side surface is provided with an upper lap groove along its length direction, the lower support plate side surface is provided with a lower lap groove along its length direction, one end of the upper carton is lapped on the top wall of the upper support plate, and the other end is lapped in the upper lap groove, and one end of the lower carton is lapped on the bottom wall of the lower support plate, and the other end is lapped in the lower lap groove;

[0012] The feeding assembly is arranged at the discharging end of the feeding assembly, and the nailing mechanism is arranged on the frame.

[0013] By adopting the above technical scheme, the staff places the two cartons with the bottom plates attached to the feed port, the bottom plates of the two cartons are located in the accommodating cavity, one end of the upper carton overlaps the top wall of the upper support plate, and the other end overlaps the upper overlap groove, one end of the lower carton overlaps the bottom wall of the lower support plate, and the other end overlaps the lower overlap groove, and the bottom plate of the lower carton overlaps the top wall of the lower support plate. Since the upper feed roller group and the lower feed roller group contact the cartons, the upper carton moves along the length direction of the upper support plate, and the lower carton moves along the length direction of the lower support plate. During the movement, the nailing mechanism binds the two ends of the two cartons at the same time, and the two bound cartons fall onto the feeding assembly and are transported to the discharging end for collection; the two cartons are placed in the feed port at one time, and the two ends of the two cartons are bound at the same time by the nailing mechanism, and then the two bound cartons are transported to the discharging end for collection by the feeding assembly, thereby improving the binding efficiency of the cartons.

[0014] Optionally, the upper feed roller group includes an upper connecting shaft, an upper motor and two coaxially arranged upper rollers;

[0015] The distance between the two upper rollers is smaller than the width of the carton, the upper rollers are coaxially fixedly connected to the upper connecting shaft, the two ends of the upper connecting shaft are rotatably connected to the two sides of the frame, the upper connecting shaft is horizontally arranged, and the upper motor output shaft is coaxially fixedly connected to the upper connecting shaft.

[0016] By adopting the above technical solution, the upper motor is started, and the upper motor output shaft drives the upper connecting shaft to rotate, so that the upper connecting shaft drives the two upper rollers to rotate, and the two upper rollers drive the carton to move along the length direction of the upper support plate.

[0017] Optionally, the lower feed roller group includes a lower connecting shaft, a lower motor and two coaxially arranged lower rollers;

[0018] The distance between the two lower rollers is smaller than the width of the carton, the lower rollers are coaxially fixed to the lower connecting shaft, the two ends of the lower connecting shaft are rotatably connected to the two sides of the frame, the axis of the lower connecting shaft is parallel to the axis of the upper connecting shaft, and the lower motor output shaft is coaxially fixed to the lower connecting shaft.

[0019] By adopting the above technical solution, the lower motor is started, and the output shaft of the lower motor drives the lower connecting shaft to rotate, so that the lower connecting shaft drives the two lower rollers to rotate, and the two lower rollers drive the carton to move along the length direction of the lower support plate; at the same time, the two lower rollers and the two upper rollers apply force to the two cartons, so that one end of the lower carton overlaps the bottom wall of the lower support plate, and the other end is located in the lower overlapping groove, which prevents the two ends of the lower carton from spreading out, making it easier for the nailing mechanism to bind the lower carton.

[0020] Optionally, the feeding assembly includes a feeding motor, two parallel feeding rollers and two parallel conveyor belts;

[0021] The two feed rollers are arranged opposite to each other, and the two feed rollers are rotatably connected to the two sides of the frame. The axes of the feed rollers are parallel to the axis of the lower connecting shaft. The two conveyor belts are both wound around the two feed rollers. A gap is left between the two conveyor belts for the nailing mechanism to pass through. The upper belt surface of the conveyor belt is lower than the top wall of the lower roller. The output shaft of the feed motor is coaxially fixed to one of the feed rollers.

[0022] By adopting the above technical solution, after the two cartons are bound, the upper carton is separated from the upper support plate, and the lower carton is separated from the lower support plate. The two cartons fall onto two conveyor belts and are transported to the discharge end, making it convenient for staff to collect the cartons at the discharge end of the conveyor belt.

[0023] Optionally, the number of the nailing mechanisms is two, one of which is arranged at the top of the frame, and the other is arranged at the bottom of the frame, and the nailing punches of the nailing mechanisms move in the vertical direction;

[0024] The bottom wall of the upper lap groove is provided with an upper extension section along the length direction of the upper support plate, and the nailing mechanism is located directly above the upper extension section;

[0025] The top wall of the lower overlapping groove is provided with a lower extension section along the length direction of the lower supporting plate, and the other nailing mechanism is located directly below the lower extension section.

[0026] By adopting the above technical solution, when two cartons pass through the nailing mechanism, the nailing mechanism binds the two cartons at the same time, the upper extension section supports the upper carton, and the lower extension section supports the lower carton, which makes it convenient for the nailing mechanism to bind the two cartons at the same time.

[0027] Optionally, a flattening assembly for flattening the two cartons is arranged just above the feeding roller away from the lower feeding roller group, and the flattening assembly includes a flattening roller and a flattening motor;

[0028] Both ends of the flattening roller are rotatably connected to the frame, the flattening motor output shaft is coaxially fixed to the flattening roller, the flattening roller axis is parallel to the feed roller axis, and a flattening cavity for flattening two cartons is formed between the flattening roller and the conveyor belt.

[0029] By adopting the above technical solution, when the two cartons are bound and fall onto the conveyor belt, the conveyor belt transports the two cartons to the discharge end of the conveyor belt, and the flattening roller is driven to rotate by the flattening motor output shaft, so as to flatten the two cartons.

[0030] Optionally, a collecting assembly for collecting two cartons is provided at the discharge end of the feeding assembly, and the collecting assembly includes a conveyor and a collecting rack;

[0031] The conveyor is arranged at the discharge end of the feed assembly, the conveyor is arranged lower than the feed roller, the length direction of the conveyor is perpendicular to the length direction of the conveyor belt, the collecting rack is arranged close to the discharge end of the conveyor, and the collecting rack is arranged lower than the conveyor.

[0032] By adopting the above technical solution, when the two bound cartons are flattened by the flattening roller, they fall onto the conveyor, and the conveyor transports the cartons to the collection rack for stacking, making it convenient for the staff to collect the bound cartons.

[0033] On the other hand, the present application also discloses a box nailing method, comprising the following steps:

[0034] S1. Place two cartons with their bottom plates attached to the feed port. The bottom plates of the two cartons are located in the accommodating cavity. One end of the upper carton is overlapped with the top wall of the upper support plate, and the other end is overlapped in the upper overlap groove. One end of the lower carton is overlapped with the bottom wall of the lower support plate, and the other end is overlapped in the lower overlap groove.

[0035] S2, the upper feed roller group and the lower feed roller group drive the two cartons to move close to the feeding assembly, and the two stapling mechanisms bind the two cartons at the same time;

[0036] S3, after the two cartons are bound, they fall onto two conveyor belts, which transport the cartons to the discharge end, and the flattening rollers flatten the two cartons;

[0037] S4. Two cartons fall onto the conveyor, and the conveyor transports the two cartons to the collection rack.

[0038] By adopting the above technical solution, the staff puts the two cartons with the bottom plates attached to each other into the feed port, so that the bottom plates of the two cartons are located in the accommodating cavity, one end of the upper carton overlaps the top wall of the upper support plate, and the other end overlaps the upper overlapping groove, and one end of the lower carton overlaps the bottom wall of the lower support plate, and the other end overlaps the lower overlapping groove. The two cartons are bound at the same time by the nailing mechanism, which improves the binding efficiency of the cartons.

[0039] In summary, the present application includes at least one of the following beneficial technical effects:

[0040] 1. A semi-automatic carton stapler and carton stapler method is designed. Two cartons are put into the feed port at one time, and the two ends of the two cartons are stapled at the same time by the stapler mechanism. Then the two stapled cartons are conveyed to the discharge end through the feed assembly for collection, thereby improving the efficiency of carton stapler.

[0041] 2. A semi-automatic box stapling machine and box stapling method are designed, which applies force to two cartons through two lower rollers and two upper rollers, so that one end of the lower carton is overlapped on the bottom wall of the lower support plate, and the other end is located in the lower overlap groove, which prevents the two ends of the lower carton from spreading out, making it easier for the stapling mechanism to staple the lower carton;

[0042] 3. A semi-automatic carton stapler and carton stapler method is designed. When two cartons pass through the stapler mechanism, the stapler mechanism staples the two cartons at the same time. The upper extension section supports the upper carton, and the lower extension section supports the lower carton, which makes it convenient for the stapler mechanism to staple the two cartons at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural schematic diagram of a semi-automatic box nailing machine according to an embodiment of the present application;

[0044] Figure 2 yes Figure 1 A magnified view of part A;

[0045] Figure 3 is a schematic structural diagram of an upper support plate and a lower support plate of an embodiment of the present application;

[0046] Figure 4 It is a cross-sectional view of a semi-automatic box stapler according to an embodiment of the present application.

[0047] Figure numerals: 1. frame; 2. nailing mechanism; 3. feeding assembly; 31. upper feeding roller group; 311. upper connecting shaft; 312. upper motor; 313. upper roller; 32. lower feeding roller group; 321. lower connecting shaft; 322. lower motor; 323. lower roller; 33. upper supporting plate; 331. upper overlapping groove; 332. upper extension section; 34. lower supporting plate; 341. lower overlapping groove; 342. lower extension section; 35. feeding port; 36. accommodating chamber; 4. feeding assembly; 41. feeding motor; 42. feeding roller; 43. conveyor belt; 5. flattening assembly; 51. flattening roller; 52. flattening motor; 53. flattening chamber; 6. collecting assembly; 61. conveyor; 62. collecting rack. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-4 This application is described in further detail.

[0049] In a first aspect, an embodiment of the present application discloses a semi-automatic box stapler.

[0050] Reference Figure 1 A semi-automatic box nailing machine includes a frame 1, a nailing mechanism 2 for binding two cartons, a feeding assembly 3 for feeding the two cartons, a feeding assembly 4 for conveying the two cartons, a flattening assembly 5 for flattening the two cartons, and a collecting assembly 6 for collecting the two cartons. The two cartons are overlapped and the bottom plates of the two cartons are attached. The feeding assembly 4 is arranged at the discharge end of the feeding assembly 3, and the nailing mechanism 2, the feeding assembly 3, the feeding assembly 4 and the flattening assembly 5 are arranged on the frame 1.

[0051] The staff puts two cartons with the bottom plates attached to each other on the feeding component 3, and the feeding component 3 drives the two cartons to move close to the feeding component 4. During the movement, the nailing mechanism 2 binds the two ends of the two cartons at the same time. The two bound cartons fall onto the feeding component 4, and the feeding component 4 transports the two bound cartons to the discharging end. The flattening component 5 flattens the two bound cartons, and finally the two bound cartons are collected by the collecting component 6.

[0052] Reference Figure 1 The feeding assembly 3 includes an upper feeding roller group 31, a lower feeding roller group 32, an upper support plate 33 for supporting the upper carton, and a lower support plate 34 for supporting the lower carton. In the present application, the upper feeding roller group 31 can be one or two, as long as the driving carton feeding is realized and the number is the same as the lower feeding roller group 32. In the present embodiment, the number of the upper feeding roller group 31 is one, and the number of the lower feeding roller group 32 is also one. The upper feeding roller group 31 is located directly above the lower feeding roller group 32, and the upper feeding roller group 31 and the lower feeding roller group 32 jointly form a feeding port 35 for two cartons to pass through, and the upper feeding roller group 31 and the lower feeding roller group 32 rotate in opposite directions.

[0053] Reference Figure 1 The upper feed roller group 31 includes an upper connecting shaft 311, an upper motor 312 and two coaxially arranged upper rollers 313. The spacing between the two upper rollers 313 is smaller than the width of the carton. The upper roller 313 is coaxially fixed to the upper connecting shaft 311 by a key connection. The two ends of the upper connecting shaft 311 are rotatably connected to the two sides of the frame 1. The upper connecting shaft 311 is horizontally arranged. The output shaft of the upper motor 312 is coaxially fixed to the upper connecting shaft 311 through a coupling. The output shaft of the upper motor 312 passes through a side wall of the frame 1 and is rotatably connected to the frame 1. The lower feed roller group 32 includes a lower connecting shaft 321, a lower motor 322 and two There are two coaxially arranged lower rollers 323, the spacing between the two lower rollers 323 is smaller than the width of the carton, and a lower roller 323 is arranged directly below an upper roller 313. The lower roller 323 is coaxially fixedly connected to the lower connecting shaft 321 by a key connection, and both ends of the lower connecting shaft 321 are rotatably connected to the two sides of the frame 1. The axis of the lower connecting shaft 321 is parallel to the axis of the upper connecting shaft 311. The lower connecting shaft 321 is located directly below the upper connecting shaft 311, and the output shaft of the lower motor 322 is coaxially fixedly connected to the lower connecting shaft 321 through a coupling. The output shaft of the lower motor 322 passes through a side wall of the frame 1 and is rotatably connected to the side wall of the frame 1.

[0054] Reference Figure 1 , Figure 2 as well as Figure 3 The upper support plate 33 and the lower support plate 34 are horizontally arranged in the feed port 35, and the upper support plate 33 and the lower support plate 34 pass through the feed port 35, and the length direction of the upper support plate 33 and the lower support plate 34 is parallel to the radial direction of the upper feed roller group 31, and the upper support plate 33 and the lower support plate 34 jointly form a receiving cavity 36 for accommodating two carton bottom plates, the top wall of the upper support plate 33 is higher than the lowest point of the upper roller 313, and the bottom wall of the lower support plate 34 is lower than the highest point of the lower roller 323, and the side surface of the upper support plate 33 is provided with an upper lap groove 331 along its length direction, and the side surface of the lower support plate 34 is provided with a lower lap groove 341 along its length direction, and one end of the upper carton is overlapped with the top wall of the upper support plate 33, The other end is overlapped in the upper overlap groove 331, one end of the lower carton is overlapped on the bottom wall of the lower support plate 34, and the other end is overlapped in the lower overlap groove 341; in order to facilitate supporting the upper support plate 33, in this embodiment, two first vertical rods are welded on the top wall of the upper support plate 33 close to the notch of the upper overlap groove 331, the two first vertical rods are distributed along the length direction of the upper support plate 33, and the top end of the first vertical rod is welded to the top wall of the frame 1; in order to facilitate supporting the lower support plate 34, in this embodiment, two second vertical rods are welded on the bottom wall of the lower support plate 34 close to the notch of the lower overlap groove 341, the two second vertical rods are distributed along the length direction of the lower support plate 34, and the bottom end of the second vertical rod is welded to the bottom wall of the frame 1.

[0055] Reference Figure 1 and Figure 4The feeding assembly 4 includes a feeding motor 41, two parallel feeding rollers 42 and two parallel conveyor belts 43. The two feeding rollers 42 are arranged opposite to each other. The two feeding rollers 42 are rotatably connected to the two sides of the frame 1. The axes of the feeding rollers 42 are parallel to the axis of the lower connecting shaft 321. In this embodiment, each feeding roller 42 is coaxially fixedly connected to two pulleys by key connection. A conveyor belt 43 is wound around two opposite pulleys. A gap for the nailing mechanism 2 to pass through is left between the two conveyor belts 43. The upper belt surface of the conveyor belt 43 is lower than the top wall of the lower roller 323. The output shaft of the feeding motor 41 is coaxially fixedly connected to a feeding roller 42 through a coupling. The output shaft of the motor 41 passes through the side wall of the frame 1 and is rotatably connected to the side wall of the frame 1; in order to facilitate the driving of the two cartons to move, in this embodiment, a support shaft is arranged directly above a feed roller 42 close to the lower connecting shaft 321, and the axis of the support shaft is parallel to the axis of the feed roller 42. Both ends of the support shaft are rotatably connected to the two side walls of the frame 1, and both ends of the support shaft are coaxially fixed with a rotating wheel by a key connection. The spacing between the two rotating wheels is the same as the spacing between the two pulleys. One rotating wheel is located directly above a pulley and has a gap between it and the conveyor belt 43 for two cartons to pass through. The rotating wheel and the feed roller 42 rotate in opposite directions, and one end of the support shaft is coaxially fixed with a supporting motor through a coupling.

[0056] Reference Figure 3 and Figure 4 There are two nailing mechanisms 2, one of which is arranged on the top of the frame 1 by bolt connection, and the other nailing mechanism 2 is arranged on the bottom of the frame 1 by bolt connection. The nailing punch of the nailing mechanism 2 moves in the vertical direction, and the bottom wall of the upper lap groove 331 is integrally connected with the upper extension section 332 along the length direction of the upper support plate 33. One nailing mechanism 2 is located directly above the upper extension section 332, and the top wall of the lower lap groove 341 is integrally connected with the lower extension section 342 along the length direction of the lower support plate 34, and the other nailing mechanism 2 is located directly below the lower extension section 342.

[0057] Reference Figure 1 and Figure 4 The flattening assembly 5 includes a flattening roller 51 and a flattening motor 52. In this embodiment, the number of flattening rollers 51 is one, and in this application, the number of flattening rollers 51 can be two, as long as the bound cartons can be flattened. Both ends of the flattening roller 51 are rotatably connected to the frame 1, and the output shaft of the flattening motor 52 is coaxially fixed to the flattening roller 51 through a coupling. The axis of the flattening roller 51 is parallel to the axis of the feed roller 42, and a flattening cavity 53 for flattening two cartons is formed between the flattening roller 51 and the conveyor belt 43. The flattening roller 51 and the feed roller 42 rotate in opposite directions, and the flattening roller 51 is located directly above the feed roller 42 away from the lower connecting shaft 321.

[0058] Reference Figure 4The collecting component 6 includes a conveyor 61 and a collecting rack 62. In the present application, the conveyor 61 can be a belt type or a chain plate type, as long as it can realize the conveying of bound cartons. In the present embodiment, the conveyor 61 is a belt type. The conveyor 61 is placed at the discharge end of the feeding component 4. The top wall of the conveyor 61 is set lower than the feeding roller 42. The length direction of the conveyor 61 is perpendicular to the length direction of the conveyor belt 43. The collecting rack 62 is placed close to the discharge end of the conveyor 61, and the collecting rack 62 is set lower than the conveyor 61.

[0059] Reference Figure 1 In order to facilitate the control of the opening and closing of the semi-automatic box nailing machine, a control panel is connected to the frame 1 by bolts in this embodiment.

[0060] The implementation principle of a semi-automatic box stitching machine in the embodiment of the present application is as follows: the staff places two cartons with their bottom plates attached to the feed port 35, the bottom plates of the two cartons are located in the accommodating cavity 36, one end of the upper carton is overlapped with the top wall of the upper support plate 33, and the other end is overlapped in the upper overlap groove 331, one end of the lower carton is overlapped with the bottom wall of the lower support plate 34, and the other end is overlapped in the lower overlap groove 341, the bottom plate of the lower carton is overlapped with the top wall of the lower support plate 34, and the upper roller 313 and the lower roller 323 contact the carton so that the upper carton is The surface carton moves along the length direction of the upper support plate 33, and the lower carton moves along the length direction of the lower support plate 34. During the movement, the nailing mechanism 2 binds the two ends of the two cartons at the same time. The two bound cartons fall onto two belts and are transported to the discharge end. Then, the two cartons are flattened by the flattening roller 51. The two flattened cartons fall onto the conveyor 61 and are transported to the collection rack 62 by the conveyor 61 for stacking. This makes it convenient for the staff to collect the bound cartons, thereby improving the binding efficiency of the cartons.

[0061] In a second aspect, the present application also discloses a method for nailing a box, comprising the following steps:

[0062] S1. Place two cartons with their bottom plates attached to the feed port 35. The bottom plates of the two cartons are located in the accommodating cavity 36. One end of the upper carton is overlapped with the top wall of the upper support plate 33, and the other end is overlapped in the upper overlap groove 331. One end of the lower carton is overlapped with the bottom wall of the lower support plate 34, and the other end is overlapped in the lower overlap groove 341.

[0063] S2, the upper feed roller group 31 and the lower feed roller group 32 drive the two cartons to move close to the feeding assembly 4, and the two nailing mechanisms 2 bind the two cartons at the same time, so that the upper nailing mechanism 2 binds the upper carton, and the lower nailing mechanism 2 binds the lower carton;

[0064] S3, after the two cartons are bound, they fall onto two conveyor belts 43, which transport the cartons to the discharge end, and the flattening rollers 51 flatten the two cartons;

[0065] S4. The two flattened cartons fall onto the conveyor 61, and the conveyor 61 conveys the two cartons to the collection rack 62, where they are collected by staff.

[0066] The staff puts two cartons with their bottom plates attached to each other into the feed port 35, so that the bottom plates of the two cartons are located in the accommodating cavity 36, one end of the upper carton overlaps the top wall of the upper support plate 33, and the other end overlaps the upper overlapping groove 331, and one end of the lower carton overlaps the bottom wall of the lower support plate 34, and the other end overlaps the lower overlapping groove 341. The two cartons are bound simultaneously by the nailing mechanism 2, which improves the binding efficiency of the cartons.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A semi-automatic carton stapler, comprising a frame (1) and a staple mechanism (2) for staple two cartons, characterized in that: It also includes a feeding assembly (3) for feeding two cartons and a conveying assembly (4) for conveying two cartons; The two cartons are overlapped and the bottom panels of the two cartons are attached; The feeding assembly (3) comprises an upper feeding roller group (31), a lower feeding roller group (32), an upper supporting plate (33) for supporting the upper carton, and a lower supporting plate (34) for supporting the lower carton; The upper feed roller group (31) is located directly above the lower feed roller group (32), and the upper feed roller group (31) and the lower feed roller group (32) together form a feed port (35) for two cartons to pass through, and the upper feed roller group (31) and the lower feed roller group (32) rotate in opposite directions; The upper support plate (33) and the lower support plate (34) are horizontally arranged in the feed port (35); the length direction of the upper support plate (33) and the lower support plate (34) are parallel to the radial direction of the upper feed roller group (31); the upper support plate (33) and the lower support plate (34) jointly form a receiving cavity (36) for receiving two carton bottom plates; an upper lap groove (331) is provided on the side surface of the upper support plate (33) along its length direction; a lower lap groove (341) is provided on the side surface of the lower support plate (34) along its length direction; one end of the upper carton is lapped on the top wall of the upper support plate (33), and the other end is lapped in the upper lap groove (331); one end of the lower carton is lapped on the bottom wall of the lower support plate (34), and the other end is lapped in the lower lap groove (341); The feeding assembly (4) is arranged at the discharge end of the feeding assembly (3), and the nailing mechanism (2) is arranged on the frame (1).

2. A semi-automatic box stitching machine according to claim 1, characterized in that: The upper feed roller group (31) comprises an upper connecting shaft (311), an upper motor (312) and two coaxially arranged upper rollers (313); The distance between the two upper rollers (313) is smaller than the width of the carton; the upper rollers (313) are coaxially fixedly connected to the upper connecting shaft (311); both ends of the upper connecting shaft (311) are rotatably connected to two sides of the frame (1); the upper connecting shaft (311) is horizontally arranged; and the output shaft of the upper motor (312) is coaxially fixedly connected to the upper connecting shaft (311).

3. A semi-automatic box stitching machine according to claim 2, characterized in that: The lower feed roller group (32) comprises a lower connecting shaft (321), a lower motor (322) and two coaxially arranged lower rollers (323); The distance between the two lower rollers (323) is smaller than the width of the carton; the lower rollers (323) are coaxially fixedly connected to the lower connecting shaft (321); both ends of the lower connecting shaft (321) are rotatably connected to the two sides of the frame (1); the axis of the lower connecting shaft (321) is parallel to the axis of the upper connecting shaft (311); and the output shaft of the lower motor (322) is coaxially fixedly connected to the lower connecting shaft (321).

4. The semi-automatic box stitching machine according to claim 3, characterized in that: The feeding assembly (4) comprises a feeding motor (41), two parallel feeding rollers (42) and two parallel conveyor belts (43); The two feed rollers (42) are arranged opposite to each other, and the two feed rollers (42) are rotatably connected to the two sides of the frame (1). The axes of the feed rollers (42) are parallel to the axis of the lower connecting shaft (321). The two conveyor belts (43) are both wound around the two feed rollers (42). A gap is left between the two conveyor belts (43) for the nailing mechanism (2) to pass through. The upper belt surface of the conveyor belt (43) is lower than the top wall of the lower roller (323). The output shaft of the feed motor (41) is coaxially fixed to one of the feed rollers (42).

5. The semi-automatic box stitching machine according to claim 1, characterized in that: The number of the nailing mechanisms (2) is two, one of which is arranged at the top of the frame (1), and the other of which is arranged at the bottom of the frame (1), and the nailing punch of the nailing mechanism (2) moves in the vertical direction; The bottom wall of the upper lap groove (331) is provided with an upper extension section (332) along the length direction of the upper support plate (33), and the nailing mechanism (2) is located directly above the upper extension section (332); A lower extension section (342) is provided on the top wall of the lower overlapping groove (341) along the length direction of the lower supporting plate (34), and the other nailing mechanism (2) is located directly below the lower extension section (342).

6. The semi-automatic box stitching machine according to claim 4, characterized in that: A flattening assembly (5) for flattening the two cartons is arranged just above the feeding roller (42) away from the lower feeding roller group (32), and the flattening assembly (5) comprises a flattening roller (51) and a flattening motor (52); Both ends of the flattening roller (51) are rotatably connected to the frame (1), the output shaft of the flattening motor (52) is coaxially fixedly connected to the flattening roller (51), the axis of the flattening roller (51) is parallel to the axis of the feed roller (42), and a flattening cavity (53) for flattening two cartons is formed between the flattening roller (51) and the conveyor belt (43).

7. A semi-automatic box stitching machine according to claim 6, characterized in that: The material delivery component (4) is provided with a collecting component (6) for collecting two cartons at the material delivery component (4) discharge end, and the collecting component (6) comprises a conveyor (61) and a collecting rack (62); The conveyor (61) is arranged at the discharge end of the feeding assembly (4), the conveyor (61) is arranged lower than the feeding roller (42), the length direction of the conveyor (61) is perpendicular to the length direction of the conveyor belt (43), the collecting rack (62) is arranged close to the discharge end of the conveyor (61), and the collecting rack (62) is arranged lower than the conveyor (61).

8. The method for stapling a box by a semi-automatic stapling machine according to claim 7, characterized in that: The following steps are involved: S1. Place two cartons with their bottom plates attached to each other at the feed port (35), with the bottom plates of the two cartons located in the accommodating cavity (36), with one end of the upper carton overlapping the top wall of the upper support plate (33) and the other end overlapping the upper overlapping groove (331), and one end of the lower carton overlapping the bottom wall of the lower support plate (34) and the other end overlapping the lower overlapping groove (341); S2, the upper feed roller group (31) and the lower feed roller group (32) drive the two cartons to move close to the feeding assembly (4), and the two stapling mechanisms (2) bind the two cartons at the same time; S3, after the two cartons are bound, they fall onto two conveyor belts (43), the conveyor belts (43) transport the cartons to the discharge end, and the flattening rollers (51) flatten the two cartons; S4. The two cartons fall onto the conveyor (61), and the conveyor (61) transports the two cartons to the collection rack (62).

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