Carton positioning and printing device

Abstract

The utility model provides a carton positioning printing device. The carton positioning printing device comprises a supporting frame; the conveying assembly is arranged on the supporting frame and conveys the folded cartons through a conveying face; the feeding assembly is arranged on the supporting frame and located at the feeding end of the conveying assembly, the multiple folding cartons are stacked and arranged, and the folding carton on the lowermost portion of the stacked folding cartons is pushed to the conveying assembly; the driving rollers are parallel to one another, are evenly laid on the supporting frame in the conveying direction of the conveying assembly and rotationally press the folded carton conveyed on the conveying face, and the length direction of the driving rollers is arranged in the direction perpendicular to the conveying direction of the folded carton; and the printing structure is arranged between the adjacent driving rollers and is used for printing the conveyed and folded carton. The printing quality of the carton is improved, and the production and printing efficiency of the carton is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to folding carton printing technical field, concretely is a carton positioning printing device. BACKGROUND

[0002] Carton: it is the most widely used packaging product, according to the different materials, there is corrugated carton, single layer folding carton box, etc., has various specifications and models, the commonly used carton has three layers, five layers, seven layers are less used, each layer is divided into inner paper, corrugated paper, core paper, face paper, inner and face paper has tea board paper, kraft paper, core paper uses corrugated paper, the color and hand feeling of various papers are different, and the paper (color, hand feeling) produced by different manufacturers is also different.

[0003] In the existing carton printing production, the folded folding carton is directly printed, and after printing is completed, the folding cartons are stacked and packaged for subsequent sales and use, and the placement of the folding cartons is usually completed by manual, but when the folding cartons are placed manually, the placement position of the folding cartons and the position of the product usually deviate, resulting in the decline of carton printing precision, which reduces the quality of carton production and is low in efficiency. UTILITY MODEL CONTENTS

[0004] In view of the above technical problems, the utility model provides a carton positioning printing device, which improves the printing quality of the carton and improves the printing efficiency of the carton production.

[0005] To achieve the above object, the utility model provides the following technical scheme: a carton positioning printing device, comprising:

[0006] Support frame;

[0007] Conveying assembly, set up on support frame, and conveying folding carton through conveying surface;

[0008] Feeding assembly, set up on support frame and located on the feeding end of conveying assembly, fold the folding carton and push the lowermost folding carton of the folded folding carton to conveying assembly;

[0009] Multiple drive rollers, parallel to each other and evenly laid on the support frame along the conveying direction of the conveying assembly, and rotating and pressing the conveying folding carton on the conveying surface, the length direction of the drive roller is arranged along the vertical conveying direction of the folding carton;

[0010] Printing structure, set up between adjacent drive rollers, and print the conveying folding carton.

[0011] Preferably, the multiple drive rollers are arranged on the support frame through the buffer member, and the buffer member comprises:

[0012] Two buffer strips, two parallel and about the transport assembly symmetrical arrangement, and the length direction along the parallel transport assembly transport direction is set on the support frame above;

[0013] Sliding rod, set in the vertical direction on the support frame, and the activity is set in the buffer strip;

[0014] Buffer spring, active sleeve set on the sliding rod, and both ends are connected with the buffer strip and the support frame;

[0015] Drive roller and printing structure are arranged between the two buffer strips, and the buffer spring is in normal elongation state, and the side of the drive roller and the printing structure is attached to the conveying surface.

[0016] Preferably, the feeding assembly comprises:

[0017] Support plate, arranged on the support frame, and located at the feeding end of the conveying assembly;

[0018] A plurality of rotating rods are arranged in the support groove on the top end surface of the support plate, and the rotating rods are rotatably arranged in the support groove;

[0019] The material arranging piece is arranged above the support plate and arranges the plurality of folded cartons in a stack;

[0020] The push rod is arranged on the support plate parallel to the rotating rod and below the material arranging piece;

[0021] The feeding piece is arranged on the support plate and controls the push rod to push the lowermost folded carton in the stacked folded cartons to the conveying assembly.

[0022] Preferably, the feeding piece comprises:

[0023] The push cylinder is arranged on the bottom of the support plate in the length direction along the conveying direction of the conveying assembly, and the output end is connected with the vertically arranged connecting rod;

[0024] The fixed rod is arranged above the output end of the push cylinder parallel to the push rod, and both ends are connected with the push rod and the connecting rod;

[0025] The limiting rod is arranged parallel to the output end of the push cylinder and the fixed rod, and one end is connected with the support plate and the other end is movably penetrated through the connecting rod.

[0026] Preferably, the material arranging piece comprises:

[0027] Two second vertical plates are arranged on the support plate above and symmetrical about the conveying direction of the conveying assembly, and the second vertical plate is arranged on the support plate in the vertical direction;

[0028] The longitudinal material arranging structure is arranged on the support frame and controls the two second vertical plates to approach each other;

[0029] Two first vertical plates are arranged between the two second vertical plates and parallel to each other, and are arranged above the support plate in the vertical direction, the bottom of the first vertical plate close to the conveying assembly is connected with the support frame, and the bottom of the first vertical plate away from the conveying assembly is connected with the support plate through the lifting structure;

[0030] A transverse arrangement structure is arranged on the lifting structure and controls the first vertical plate away from the conveying assembly to move towards the conveying assembly.

[0031] Preferably, the longitudinal arrangement structure comprises:

[0032] A lifting plate is arranged below the support plate in parallel and is connected with the support frame;

[0033] Two first vertical rods are arranged in the vertical direction and are located outside the two second vertical plates, and the top of each first vertical rod is connected with the two second vertical plates through the first elastic structure respectively;

[0034] A first adjusting cylinder is arranged on the lifting plate in the length direction along the conveying direction of the conveying assembly, and a rotating block is arranged on the output end of the first adjusting cylinder;

[0035] Two linkage rods are arranged symmetrically about the rotating block and are connected with the rotating block at one end and with the bottom of the two first vertical rods at the other end respectively.

[0036] Preferably, the transverse arrangement structure comprises:

[0037] A second adjusting cylinder is arranged in parallel between the pushing cylinder and the lifting plate through the lifting structure, and the output end of the second adjusting cylinder is connected with the second vertical rod arranged in the vertical direction;

[0038] A second elastic structure is arranged in the length direction along the direction parallel to the second adjusting cylinder, and the two ends of the second elastic structure are connected with the top of the first vertical plate and the second vertical rod respectively.

[0039] Preferably, the lifting structure comprises:

[0040] An adjusting rod is arranged on the bottom of the support plate in the length direction perpendicular to the length direction of the pushing cylinder;

[0041] A bidirectional screw rod is arranged in the adjusting groove on the side surface of the adjusting rod and is driven by a motor;

[0042] Two threaded blocks are sleeved on the two ends of the bidirectional screw rod through threaded connection;

[0043] A connecting block is arranged on the second adjusting cylinder and is located below the two threaded blocks;

[0044] Two transmission rods are arranged symmetrically about the connecting block, and the bottom ends of the two transmission rods are rotatably connected with the top end of the connecting block and the top ends of the two transmission rods are rotatably connected with different threaded blocks respectively.

[0045] The paper box positioning and printing device has the advantages that the feeding assembly is arranged to stack and arrange multiple folded paper boxes, and gradually push the paper box at the bottom of the stack to the conveying assembly, the multiple driving rollers and the conveying assembly are cooperated to rotate, extrude and convey the folded paper boxes, the relative position of the folded paper boxes is fixed during conveying on the conveying surface, stable and accurate printing of the printing structure on the folded paper boxes is ensured, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved. BRIEF DESCRIPTION OF DRAWINGS

[0046] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application, and in the drawings:

[0047] Figure 1 The paper box positioning and printing device has the advantages that the feeding assembly is arranged to stack and arrange multiple folded paper boxes, and gradually push the paper box at the bottom of the stack to the conveying assembly, the multiple driving rollers and the conveying assembly are cooperated to rotate, extrude and convey the folded paper boxes, the relative position of the folded paper boxes is fixed during conveying on the conveying surface, stable and accurate printing of the printing structure on the folded paper boxes is ensured, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved.

[0048] Figure 2 The paper box positioning and printing device has the advantages that the feeding assembly is arranged to stack and arrange multiple folded paper boxes, and gradually push the paper box at the bottom of the stack to the conveying assembly, the multiple driving rollers and the conveying assembly are cooperated to rotate, extrude and convey the folded paper boxes, the relative position of the folded paper boxes is fixed during conveying on the conveying surface, stable and accurate printing of the printing structure on the folded paper boxes is ensured, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved.

[0049] Figure 3 The paper box positioning and printing device has the advantages that the feeding assembly is arranged to stack and arrange multiple folded paper boxes, and gradually push the paper box at the bottom of the stack to the conveying assembly, the multiple driving rollers and the conveying assembly are cooperated to rotate, extrude and convey the folded paper boxes, the relative position of the folded paper boxes is fixed during conveying on the conveying surface, stable and accurate printing of the printing structure on the folded paper boxes is ensured, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved. Figure 2 The paper box positioning and printing device has the advantages that the feeding assembly is arranged to stack and arrange multiple folded paper boxes, and gradually push the paper box at the bottom of the stack to the conveying assembly, the multiple driving rollers and the conveying assembly are cooperated to rotate, extrude and convey the folded paper boxes, the relative position of the folded paper boxes is fixed during conveying on the conveying surface, stable and accurate printing of the printing structure on the folded paper boxes is ensured, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved.

[0050] Figure 4 The paper box positioning and printing device has the advantages that the feeding assembly is arranged to stack and arrange multiple folded paper boxes, and gradually push the paper box at the bottom of the stack to the conveying assembly, the multiple driving rollers and the conveying assembly are cooperated to rotate, extrude and convey the folded paper boxes, the relative position of the folded paper boxes is fixed during conveying on the conveying surface, stable and accurate printing of the printing structure on the folded paper boxes is ensured, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved.

[0051] In the drawings: 1, support frame; 2, conveying belt; 3, buffer strip; 4, driving roller; 5, sliding rod; 6, buffer spring; 7, printing structure; 8, support plate; 9, rotating rod; 10, first vertical plate; 11, second vertical plate; 12, lifting plate; 13, first vertical rod; 14, first telescopic rod; 15, first spring; 16, first adjusting cylinder; 17, linkage rod; 18, second adjusting cylinder; 19, second vertical rod; 20, second telescopic rod; 21, second spring; 22, pushing cylinder; 23, connecting rod; 24, fixed rod; 25, limiting rod; 26, pushing rod; 27, adjusting rod; 28, adjusting groove; 29, bidirectional screw; 30, threaded block; 31, connecting block; 32, transmission rod. DETAILED DESCRIPTION

[0052] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present application.

[0053] Please refer to Figures 1-4The paper box positioning and printing device provided by the application comprises a support frame 1, a conveying assembly arranged on the support frame 1 and used for conveying the folded paper boxes through a conveying surface, a feeding assembly arranged on the support frame 1 and located at a feeding end of the conveying assembly, used for stacking and arranging a plurality of folded paper boxes and pushing the lowermost folded paper box of the stacked folded paper boxes to the conveying assembly, a plurality of driving rollers 4 arranged on the support frame 1 in parallel with each other and along the conveying direction of the conveying assembly, used for rotating and pressing the conveying folded paper boxes on the conveying surface, and the length direction of the driving rollers 4 is arranged vertically to the conveying direction of the folded paper boxes, and a printing structure 7 arranged between the adjacent driving rollers 4 and used for printing the conveying folded paper boxes.

[0054] In the prior art, the folded paper boxes in a plate-shaped structure are placed on the printing structure by manual operation, but the manual operation may cause deviation of the folded paper boxes in the stacking position, deviation of the printing position of the folded paper boxes, reduction of the printing quality of the paper boxes, and low printing efficiency of the folded paper boxes.

[0055] As shown in the drawings, Figures 1-2 In the embodiment, the folded paper boxes are conveyed to the feeding assembly through a conveying line, the feeding assembly is used for stacking and arranging the positions of a plurality of folded paper boxes, and the lowermost folded paper box of the stacked folded paper boxes is controlled to move to the conveying assembly. The conveying surface and the plurality of driving rollers 4 arranged on the conveying surface are used for extruding and conveying the folded paper boxes, the folded paper boxes are stably conveyed on the conveying surface, the printing structure 7 arranged on the support frame 1 is used for stably and accurately printing the folded paper boxes, the printing quality of the paper boxes is improved, and the printing efficiency of the paper boxes is improved.

[0056] As shown in the drawings, Figures 1-2 In the embodiment, the plurality of driving rollers 4 are arranged on the support frame 1 through a buffer, the buffer comprises two buffer strips 3 arranged in parallel with each other and symmetrically about the conveying assembly and arranged above the support frame 1 along the length direction parallel to the conveying direction of the conveying assembly, a slide rod 5 arranged on the support frame 1 along the vertical direction and movably arranged on the buffer strips 3, a buffer spring 6 movably sleeved on the slide rod 5 and connected to the buffer strips 3 and the support frame 1 at both ends, and the driving rollers 4 and the printing structure 7 are arranged between the two buffer strips 3, and the side surfaces of the driving rollers 4 and the printing structure 7 are attached to the conveying surface when the buffer spring 6 is in the normal elongation state. When the folded paper boxes are conveyed on the conveying surface, the folded paper boxes are conveyed between the conveying surface and the driving rollers 4. The folded paper boxes have a thickness, and the side surfaces of the driving rollers 4 are tightly attached to the surface of the conveying folded paper boxes under the elastic force of the buffer spring 6, so that the folded paper boxes are stably conveyed on the conveying surface.

[0057] As shown in the drawings, Figures 1-2 The conveying assembly adopts a conveying belt to convey the folded paper boxes.

[0058] As Figures 1-2 shown in the embodiment, the feeding assembly includes: a support plate 8 arranged on the support frame 1 and located at the feeding end of the conveying assembly; a plurality of rotating rods 9 arranged in the support grooves on the top end face of the support plate 8 at equal intervals and rotatably arranged in the support grooves; a sorting piece arranged above the support plate 8 and used to stack and arrange the plurality of folded cartons; a pushing rod 26 arranged on the support plate 8 in parallel with the rotating rods 9 and located below the sorting piece; and a feeding piece arranged on the support plate 8 and used to control the pushing rod 26 to push the lowermost folded carton of the stacked folded cartons to the conveying assembly. When the plurality of folded cartons are moved to the support plate 8, the sorting piece is used to arrange the plurality of stacked folded cartons, and the feeding piece drives the pushing rod 26 to push the lowermost folded carton of the stacked folded cartons to the conveying assembly. During the process in which the pushing rod 26 pushes the folded carton to move from the support plate 8 to the conveying assembly, the plurality of rotating rods 9 are arranged to rotate, so as to facilitate the movement of the folded carton on the plurality of rotating rods 9 and facilitate the position adjustment of the folded carton pushed to the conveying assembly, thereby ensuring the accuracy of the position of the folded carton conveyed on the conveying assembly.

[0059] As Figures 2-3 shown in the embodiment, the feeding piece includes: a pushing cylinder 22 arranged on the bottom of the support plate 8 in the length direction along the conveying direction of the conveying assembly and having an output end connected to a vertically arranged connecting rod 23; a fixed rod 24 arranged above the output end of the pushing cylinder 22 in parallel with the pushing cylinder 22 and having two ends respectively connected to the pushing rod 26 and the connecting rod 23; and a limiting rod 25 arranged in parallel between the output end of the pushing cylinder 22 and the fixed rod 24 and having one end connected to the support plate 8 and the other end movably penetrating through the connecting rod 23. The output end of the pushing cylinder 22 drives the connecting rod 23 and the fixed rod 24 to move toward the conveying assembly, drives the pushing rod 26 arranged on the fixed rod 24 to push the lowermost folded carton to move from the plurality of rotating rods 9 to the conveying assembly, and after pushing the folded carton to the conveying assembly, the output end of the pushing cylinder 22 drives the pushing rod 26 to return to the original position. At this time, the plurality of stacked folded cartons fall downward to the plurality of rotating rods 9 under the action of gravity, and the sorting piece is used to arrange the positions of the plurality of stacked folded cartons, thereby realizing the pushing of the folded cartons to the conveying assembly one by one.

[0060] As Figures 1-2As shown, in the embodiment, the material arranging part comprises: two second vertical plates 11, which are parallel to each other and symmetrically arranged above the support plate 8 with respect to the conveying direction of the conveying assembly, and are arranged on the support plate 8 in the vertical direction; a longitudinal material arranging structure arranged on the support frame 1 and controlling the two second vertical plates 11 to move close to each other; two first vertical plates 10, which are arranged between the two second vertical plates 11 and parallel to each other, and are arranged above the support plate 8 in the vertical direction, the bottom of the first vertical plate 10 close to the conveying assembly is connected with the support frame 1, and the bottom of the first vertical plate 10 away from the conveying assembly is connected with the support plate 8 through a lifting structure; a transverse material arranging structure arranged on the lifting structure and controlling the first vertical plate 10 away from the conveying assembly to move towards the conveying assembly, when a plurality of folded cartons stacked on each other are located between the two first vertical plates 10 and the two second vertical plates 11, the two second vertical plates 11 are driven to move close to each other by the longitudinal material arranging structure, and the first vertical plate 10 away from the conveying assembly is driven to move close to the first vertical plate 10 close to the conveying assembly by the transverse material arranging structure, so that the edges of the plurality of folded cartons stacked on each other are arranged uniformly.

[0061] As shown in the figure, Figures 1-2 In the embodiment, the longitudinal material arranging structure comprises: a lifting plate 12 arranged parallel below the support plate 8 and connected with the support frame 1; two first vertical rods 13 arranged in the vertical direction and located outside the two second vertical plates 11, and the top of each of the two first vertical rods 13 is connected with the two second vertical plates 11 through a first elastic structure; a first adjusting cylinder 16 arranged on the lifting plate 12 in the length direction along the conveying direction of the conveying assembly, and a rotating block is arranged on the output end of the first adjusting cylinder 16; two linkage rods 17 symmetrically arranged about the rotating block and one end of each of the two linkage rods 17 is rotatably connected with the rotating block and the other end of each of the two linkage rods 17 is rotatably connected with the bottom of the two first vertical rods 13, the first adjusting cylinder 16 drives one end of the two linkage rods 17 to move, and the other end of the two linkage rods 17 pulls the two first vertical rods 13 to move close to each other, so that the longitudinal two sides of the plurality of stacked folded cartons are arranged uniformly.

[0062] As shown in the figure, Figure 2 The first elastic structure comprises a first telescopic rod 14 and a first spring 15, the two ends of the first telescopic rod 14 are connected with the top of the first vertical rod 13 and the second vertical plate 11 respectively, and the first spring 15 is sleeved on the first telescopic rod 14, and the two ends of the first spring 15 are connected with the first vertical rod 13 and the second vertical plate 11, when the moving distance between the two second vertical plates 11 is too small, the first spring 15 on the first telescopic rod 14 is compressed at this time, so as to avoid damage to the edge of the folded carton caused by extrusion.

[0063] As shown in the figure, Figures 2-3As shown in the embodiment, the transverse arrangement structure comprises: a second adjusting cylinder 18, which is arranged in parallel between the pushing cylinder 22 and the lifting plate 12 through a lifting structure, and the output end is connected with a second vertical rod 19 arranged in the vertical direction; a second elastic structure, which is arranged in the length direction along the direction parallel to the second adjusting cylinder 18, and the two ends are respectively connected with the first vertical plate 10 and the top of the second vertical rod 19, and the first vertical plate 10 is driven by the second adjusting cylinder 18 to move towards the direction of the adjacent conveying assembly through the second vertical rod 19 and the second elastic structure, so that the multiple stacked and folded cartons near the edge parts of the two first vertical plates 10 are arranged.

[0064] As shown in the embodiment, Figure 2 The second elastic structure comprises a second telescopic rod 20 and a second spring 21, the two ends of the second telescopic rod 20 are respectively connected with the top of the second vertical rod 19 and the first vertical plate 10, the second spring 21 is sleeved on the rod body of the second telescopic rod 20, and the two ends of the second spring 21 are connected with the second vertical rod 19 and the first vertical plate 10, when the moving distance between the two first vertical plates 10 is too small, the second spring 21 on the rod body of the second telescopic rod 20 is compressed at this time, so that the edge parts of the folded cartons are prevented from being squeezed and damaged.

[0065] As shown in the embodiment, Figure 4 In the embodiment, the lifting structure comprises: an adjusting rod 27, which is arranged on the bottom of the supporting plate 8 in the length direction perpendicular to the length direction of the pushing cylinder 22; a bidirectional screw rod 29, which is arranged in the adjusting groove 28 on the side of the adjusting rod 27 and is driven by a motor; two threaded blocks 30, which are sleeved on the rod bodies of the two ends of the bidirectional screw rod 29 through threaded connection; a connecting block 31, which is arranged on the second adjusting cylinder 18 and is located below the two threaded blocks 30; two transmission rods 32, which are symmetrically arranged about the connecting block 31, and the bottom ends are rotatably connected with the top end of the connecting block 31 and the different threaded blocks 30, respectively, the bidirectional screw rod 29 is driven to rotate by the motor, the two threaded blocks 30 are driven to move close to or away from each other, the second adjusting cylinder 18 is driven to lift and lower under the action of the transmission rod 32, the first vertical plate 10 is driven to lift and lower in the vertical direction, and the folded cartons of different thicknesses are pushed to the conveying assembly under the action of the two first vertical plates 10 which can arrange the positions of the folded cartons.

[0066] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A carton positioning and printing device, characterized in that, include: Support frame (1); The conveying assembly is mounted on the support frame (1) and conveys the folded carton through the conveying surface; The feeding component is set on the support frame (1) and located at the feeding end of the conveying component. It stacks and organizes multiple folds and pushes the bottom fold of the stacked folded carton onto the conveying component. Multiple drive rollers (4) are parallel to each other and evenly laid on the support frame (1) along the conveying direction of the conveying assembly, and rotate and press the conveying folded carton on the conveying surface. The length direction of the drive rollers (4) is set perpendicular to the conveying direction of the folded carton. The printing structure (7) is set between adjacent drive rollers (4) and prints on the conveying folded cartons.

2. The carton positioning and printing device according to claim 1, characterized in that: Multiple drive rollers (4) are mounted on the support frame (1) via a buffer, the buffer comprising: Two buffer bars (3) are parallel to each other and symmetrically arranged about the left and right sides of the conveying component, and their length direction is arranged above the support frame (1) along the conveying direction of the parallel conveying component; The slide bar (5) is set vertically on the support frame (1) and is movably inserted through the buffer strip (3); A buffer spring (6) is movably sleeved on the slide bar (5) and its two ends are respectively connected to a buffer strip (3) and a support frame (1); The drive roller (4) and the printing structure (7) are positioned between two buffer strips (3), and when the buffer spring (6) is in its normal extended state, the drive roller (4) and the printing structure (7) are in contact with the conveying surface.

3. The carton positioning and printing device according to claim 2, characterized in that: The feeding components include: The support plate (8) is set on the support frame (1) and located at the feed end of the conveying assembly; Multiple rotating rods (9) and parallel drive rollers (4) are equally spaced in the support groove opened on the top end face of the support plate (8), and the rotating rods (9) are rotatably set in the support groove; The material handling components are placed above the support plate (8) and multiple folded cartons are stacked and arranged. The push rod (26) and the parallel rotating rod (9) are mounted on the support plate (8) and located below the material handling parts; The feeding component is set on the support plate (8) and the push rod (26) is controlled to push the bottom folded carton of the stacked folded carton onto the conveying component.

4. The carton positioning and printing device according to claim 3, characterized in that: The feeding components include: The cylinder (22) is set on the bottom of the support plate (8) along the conveying direction of the conveying assembly, and its output end is connected to the vertically set connecting rod (23); A fixed rod (24) is positioned above the output end of the parallel push cylinder (22), and both ends are connected to a push rod (26) and a connecting rod (23) respectively. The limiting rod (25) is set in parallel between the output end of the pushing cylinder (22) and the fixed rod (24), with one end connected to the support plate (8) and the other end movably passing through the connecting rod (23).

5. A carton positioning and printing device according to claim 3, characterized in that: Material handling components include: Two second vertical plates (11) are parallel to each other and symmetrically arranged above the support plate (8) with respect to the conveying direction of the conveying component, and the second vertical plates (11) are arranged on the support plate (8) in a vertical direction; The longitudinal material handling structure is set on the support frame (1) and controls the two second vertical plates (11) to be close to each other; Two first vertical plates (10) are set between two second vertical plates (11) and are parallel to each other. They are set above the support plate (8) in the vertical direction. The bottom of the first vertical plate (10) near the conveying component is connected to the support frame (1), and the bottom of the first vertical plate (10) away from the conveying component is connected to the support plate (8) through a lifting structure. A horizontal material handling structure is set on the lifting structure and controls the first vertical plate (10) away from the conveying component to move towards the conveying component.

6. The carton positioning and printing device according to claim 5, characterized in that: Longitudinal material handling structure includes: The lifting plate (12) is set parallel to the support plate (8) below and is connected to the support frame (1); Two first vertical rods (13) are set in the vertical direction and located outside the two second vertical plates (11), and their tops are connected to the two second vertical plates (11) respectively through a first elastic structure; The first regulating cylinder (16) is arranged on the lifting plate (12) along the conveying direction of the conveying assembly in the length direction, and a rotating block is provided on the output end; Two linkage rods (17) are symmetrically arranged about the rotating block, with one end rotatably connected to the rotating block and the other end rotatably connected to the bottom of the two first vertical rods (13).

7. A carton positioning and printing device according to claim 5, characterized in that: Lateral material handling structures include: The second adjusting cylinder (18) is arranged in parallel between the pushing cylinder (22) and the lifting plate (12) through a lifting structure, and its output end is connected to the second vertical rod (19) arranged in the vertical direction; The second elastic structure is arranged along the direction parallel to the second adjusting cylinder (18) in the length direction, and its two ends are respectively connected to the top of the first vertical plate (10) and the top of the second vertical rod (19).

8. A carton positioning and printing device according to claim 7, characterized in that: The lifting structure includes: The adjusting rod (27) is set on the bottom of the support plate (8) along the length direction of the vertical push cylinder (22); A two-way lead screw (29) is inserted into an adjustment groove (28) on the side of the adjustment rod (27) and is driven by a motor; Two threaded blocks (30) are threadedly connected and fitted onto the two ends of the double-acting screw (29); A connecting block (31) is provided on the second adjusting cylinder (18) and located below between the two threaded blocks (30); Two transmission rods (32) are symmetrically arranged about the connecting block (31), and their bottom ends are rotatably connected to the connecting block (31), while their top ends are rotatably connected to different threaded blocks (30).

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