Continuous folding paperboard and paperboard marking press

Abstract

The utility model discloses a continuous folding cardboard and cardboard creasing machine, including cardboard body, cardboard body includes a plurality of unit cardboard that are connected through bending portion, the unit cardboard is provided with the creasing group that matches the bending portion, the creasing group is located in the front or back of the unit cardboard, and the creasing group is located on the back of the unit cardboard. The unit paperboards can be conveniently folded and assembled into the carton through the indentation groups; different indentations are arranged, the indentations are arranged according to the size of a carton to be assembled by the folding paperboard, the folding paperboard can be conveniently assembled in the later period, meanwhile, the bending strength of the different indentations is different, the different indentations are matched with the bending angles of different positions of the carton, the problem that the bending assembly difficulty of the same indentation is large is solved, the assembly difficulty is reduced, and the assembly efficiency is improved. And meanwhile, the strength of the carton assembled by the folded paperboards is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging cardboard, and particularly relates to a continuous folding cardboard and a cardboard indentation machine. Background Technique

[0002] Corrugated cardboard is made of corrugated cardboard, which is the most widely used paper container packaging and is widely used in transportation packaging. The reason why corrugated cardboard is widely used is that it has many unique advantages: good buffering performance; light and firm; small external dimensions; sufficient raw materials and low cost; convenient for automated production; low packaging operation cost; can package a variety of items; less metal consumption; good printing performance; recyclable and reusable.

[0003] In the process of making corrugated cardboard into a packing box, it is necessary to bend the corrugated cardboard. Existing cardboard usually has indentations with the same depth as a standard for folding and assembling the cardboard box. However, the folding degrees required for different positions of the cardboard box to complete folding are different, and indentations with the same depth cannot meet the assembly requirements, which easily affects the strength of the cardboard box in the later stage. In addition, the existing indentation machines usually can only process indentations with a fixed depth and can only perform indentation operations on one side of the cardboard, making it difficult to meet the processing requirements. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, a continuous folding cardboard and a cardboard indentation machine are proposed, which solve the problem that the folding degrees required for different positions of the cardboard box to complete folding are different in the above background technique, and indentations with the same depth cannot meet the assembly requirements, which easily affects the strength of the cardboard box in the later stage.

[0005] To achieve the above object, the following technical solutions are proposed by the present utility model for implementation:

[0006] A continuous folding cardboard includes a cardboard body, the cardboard body includes a plurality of unit cardboards connected by bending parts, and an indentation group matching the bending parts is arranged on the unit cardboards. The indentation group is located on the front or back of the unit cardboard, and it is convenient to fold and assemble the unit cardboard into a cardboard box through the indentation group.

[0007] Further, the indentation group includes a first indentation and a second indentation, the first indentation and the second indentation are arranged at intervals, and the depth of the first indentation is greater than the depth of the second indentation.

[0008] Further, the indentation group further includes a third indentation, the first indentation and the second indentation are respectively perpendicular to the bending part, and the third indentation is arranged parallel to the bending part.

[0009] A cardboard creasing machine is used to process the above-mentioned continuous folding cardboard, comprising driving rollers, wherein two groups of driving rollers are arranged opposite to each other above a workbench, a creasing assembly and a guide assembly are arranged between the two groups of driving rollers, and two groups of creasing assemblies are symmetrically arranged about the guide assembly, and the two groups of creasing assemblies respectively creasing both sides of the cardboard.

[0010] Furthermore, the indentation assembly comprises a first pressing plate and a second pressing plate which are arranged opposite to each other up and down and whose relative distance is adjustable, and an indentation wheel is movably installed in the first pressing plate.

[0011] Furthermore, the creasing wheel is slidably connected to a mounting cavity provided inside the first pressing plate, and a creasing groove matching the creasing wheel is provided at the bottom of the first pressing plate, wherein an extending direction of the creasing groove is perpendicular to a conveying direction of the cardboard.

[0012] Furthermore, the creasing wheel is rotatably mounted on a mounting frame, the top of the mounting frame is slidably connected to the first pressing block via a slider, the slider is threadedly connected to a screw rod, and the screw rod is rotatably connected to the first pressing block.

[0013] Furthermore, a pre-pressing plate is arranged between the indentation wheel and the indentation groove, the pre-pressing plate is arc-shaped and matches the shape of the indentation wheel, and a clearance groove is opened on the side of the second pressing plate close to the indentation groove.

[0014] Furthermore, top plates are provided on both sides of the pre-pressing plate, a return spring is provided on the top plate and is slidably connected to the mounting cavity, and the other end of the return spring is connected to a limit block fixed to the first clamping plate.

[0015] Furthermore, the first pressing plate on the left and the second pressing plate on the right, as well as the second pressing plate on the left and the first pressing plate on the right are fixedly connected via connecting plates, respectively, and the distance between the two sets of connecting plates is adjustable.

[0016] Furthermore, a bidirectional threaded rod and a guide rod are vertically arranged on the workbench, the bidirectional threaded rod is threadedly connected to the two groups of connecting plates respectively, and the guide rod passes through the two groups of connecting plates and is slidably connected to the connecting plates.

[0017] Furthermore, the guide assembly includes guide plates arranged relatively to each other up and down, and also includes a guide block arranged on the first clamping plate or the second clamping plate. Two guide blocks are arranged relatively to each other, and the guide blocks include an inclined plate portion and a straight plate portion. The straight plate portion is arranged along the cardboard conveying direction.

[0018] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0019] (1) Different indentations are set according to the size of the carton to be assembled with the folding cardboard, which facilitates the later assembly of the folding cardboard. At the same time, different indentations have different bending strengths, which match the bending angles at different positions of the carton, avoiding the problem of high difficulty in bending and assembling with the same indentation, reducing the difficulty of assembly, and improving the strength of the folding cardboard after being assembled into a carton.

[0020] (2) The driving roller drives the cardboard to move. During the movement of the cardboard on the workbench guided by the guide component, two sets of creasing components are used to creasing the two sides of the cardboard respectively, so as to meet the needs of bending or processing different cardboards, and facilitate the cardboard to be folded in different directions, so that the cardboard can be folded in a Z shape, realizing continuous folding of the cardboard, saving space and facilitating transportation, and further facilitating the operator to feed the paper during processing.

[0021] (3) A pre-pressing plate is set. When the first pressing plate and the second pressing plate are close to each other, the cardboard is pre-indented by the pre-pressing plate first, which plays a transitional role between the initial state of the cardboard and the final indentation, buffers the surface of the cardboard, avoids direct indentation of the indentation wheel and causes damage to the cardboard surface, and improves the indentation quality; a clearance groove is set to provide an avoidance space for the indentation of the cardboard, which facilitates the formation of indentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the continuous folding paperboard structure of the embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the top view of the continuous folding paperboard structure of the embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the creasing machine according to an embodiment of the utility model;

[0025] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0026] Figure 5 This is a schematic top view of the overall structure of the creasing machine according to an embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the overall structure of the creasing machine according to the embodiment of the utility model from a side view;

[0028] Figure 7 for Figure 6 Schematic diagram of the local structure;

[0029] Figure 8 This is a schematic diagram of the guide block structure of an embodiment of the utility model.

[0030] Legend: 1. Driving roller; 2. Workbench; 3. First pressing plate; 4. Second pressing plate; 5. Indentation wheel; 6. Mounting bracket; 7. Screw; 8. Pre-pressing plate; 9. Relief groove; 10. Return spring; 11. Connecting plate; 12. Bidirectional threaded rod; 13. Guide plate; 14. Guide block; 15. Cardboard body; 16. First indentation; 17. Second indentation. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the protection scope of the present invention.

[0032] In this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0033] As Figures 1 to 2 shown, a continuous folding cardboard includes a cardboard body 15, and the cardboard body 15 includes a plurality of unit cardboards connected by bending parts. An indentation group matching the bending parts is arranged on the unit cardboard, and the indentation group is located on the front or back of the unit cardboard. The unit cardboards can be folded and assembled into a carton through the indentation group.

[0034] By setting different indentations in the indentation group and setting the indentations according to the size of the carton to be assembled by the unit cardboard, it is convenient for the later assembly of the unit cardboard. At the same time, different indentations have different bending strengths, which match the bending angles at different positions of the carton, avoiding the problem of difficult bending and assembly with the same indentation, reducing the assembly difficulty, and improving the strength of the folding cardboard after being assembled into a carton.

[0035] Specifically, the four sides of the cardboard box need to play a supporting role, and the four edges thereof do not need to change positions after assembly. Therefore, for the part of the folding cardboard that serves as the side of the cardboard box, indentations with relatively shallow depths can be processed. Since the indentations are relatively shallow, the damage to the strength of the cardboard body is small, and it has relatively high strength after being bent and assembled into a cardboard box, meeting the supporting requirements. For the cardboard that realizes the opening, closing, and opening of the top of the cardboard box, it needs to be repeatedly bent during use. Therefore, the indentations at this position are set deeper to facilitate bending and assembling into a cardboard box and closing the opening of the cardboard box after subsequent opening.

[0036] In the continuous folding cardboard of this embodiment, the indentation group includes a first indentation 16 and a second indentation 17. The first indentation 16 and the second indentation 17 are arranged at intervals, and the depth of the first indentation 16 is greater than the depth of the second indentation 17.

[0037] Specifically, both the first indentation 16 and the second indentation 17 in this embodiment are continuous indentations. The positions of the first indentation 16 and the second indentation 17 shown in the attached drawings are only for illustration, and the specific structure is selected and processed according to the actual situation.

[0038] Preferably, the first indentation 16 and the second indentation 17 can also be discontinuous linear indentations or dot indentations, and the above settings can be selected according to needs.

[0039] In the continuous folding cardboard of this embodiment, the indentation group further includes a third indentation. The first indentation 16 and the second indentation 17 are respectively perpendicular to the bending part, and the third indentation is arranged parallel to the bending part.

[0040] Specifically, setting the first indentation 16 and the second indentation 17 perpendicular to the bending part facilitates the operation of assembling the cardboard box after the unit cardboard is divided later, ensuring the regularity of the cardboard box. By setting the third indentation, the depth of the third indentation can be set according to the assembly requirements of different cardboard boxes, improving the practicability of the folding cardboard.

[0041] On the other hand, as Figures 3 to 8 shown, the present application also proposes a cardboard indentation machine, which can be used to process the above-mentioned continuous folding cardboard. It includes a driving roller 1. Two groups of driving rollers 1 are relatively arranged above a workbench 2. An indentation assembly and a guiding assembly are arranged between the two groups of driving rollers 1. Two groups of indentation assemblies are symmetrically arranged with respect to the guiding assembly, and the two groups of indentation assemblies respectively indent the two sides of the cardboard.

[0042] The driving roller 1 is set to drive the cardboard to move. During the process that the cardboard moves on the workbench 2 guided by the guiding component, the two sets of indentation components respectively perform indentation operations on both sides of the cardboard, meeting the requirements of different cardboard bending or processing, facilitating the cardboard to be folded in different directions, so that the cardboard is folded in a Z shape, realizing the continuous folding of the cardboard, saving space and being convenient for transportation, and further facilitating the operator to feed the paper during processing.

[0043] Specifically, the front end of the workbench 2 is connected to the cardboard input end, and the rear end is connected to the cardboard storage end. The driving roller 1 performs intermittent movement through PLC control, so as to leave a time gap for the indentation component to perform indentation while realizing the transportation of the cardboard. Preferably, after the indentation is completed, the driving roller 1 drives the cardboard to move to transfer the cardboard with completed indentation out of the indentation operation area and drive the cardboard to be processed forward to realize continuous processing operation.

[0044] In the cardboard indentation machine of this embodiment, the indentation component includes a first pressing plate 3 and a second pressing plate 4 which are arranged oppositely up and down and the relative distance between them is adjustable. A indentation wheel 5 is movably installed in the first pressing plate 3.

[0045] Through the above setting, the adjustable relative distance is convenient for processing the first indentation 16 and the second indentation 17 with different depths, thus meeting the usage requirements of continuously folding the cardboard and facilitating the subsequent assembly of the carton.

[0046] When indentation is required, the distance between the first pressing plate 3 and the second pressing plate 4 is shortened to press the cardboard, and then the indentation wheel 5 rolls in the first pressing plate 3 to perform indentation operation on the cardboard. The two opposite pressing plates are set to press both sides of the cardboard during indentation to prevent the cardboard from warping and facilitate stable indentation, improving the indentation processing quality; at the same time, after the indentation is completed, the pressing plates move away from each other to facilitate the transportation of the cardboard.

[0047] In the cardboard indentation machine of this embodiment, the indentation wheel 5 is slidably connected to the installation cavity opened inside the first pressing plate 3. The bottom of the first pressing plate 3 is provided with an indentation groove matching the indentation wheel 5, and the extending direction of the indentation groove is perpendicular to the conveying direction of the cardboard.

[0048] When indentation is required, the two pressing plates press the cardboard, and the indentation wheel 5 rolls in the first pressing plate 3 along the direction perpendicular to the cardboard conveying in the installation cavity and performs indentation on the cardboard through the indentation groove.

[0049] Specifically, in this embodiment, the first pressing plate 3 with the indentation wheel 5 installed in the left indentation component is located above, and the first pressing plate 3 with the indentation wheel 5 installed in the right indentation component is located below, so as to perform indentation operations on different positions and different surfaces of the cardboard.

[0050] In the cardboard indentation machine of this embodiment, the indentation wheel 5 is rotatably installed on the mounting frame 6. The top of the mounting frame 6 is slidably connected to the first pressing block 3 through a slider. The slider is threadedly connected to the screw rod 7, and the screw rod 7 is rotatably connected to the first pressing block 3.

[0051] The screw rod 7 drives the slider and the mounting frame 6 to slide reciprocally, thereby driving the pressing wheel 5 to move. The pressing wheel 5 rolls on the surface of the cardboard to indent the cardboard. Preferably, the distance that the screw rod 7 drives the slider to move is controlled according to the width of the cardboard.

[0052] Specifically, both ends of the screw rod 7 are fixed to the first pressing block 3 through mounting blocks. One end is fixedly connected to the output end of the asynchronous motor, and the motor drives the screw rod 7 to rotate and drives the indentation wheel 5 to move.

[0053] In the cardboard indentation machine of this embodiment, a pre-pressing plate 8 is arranged between the indentation wheel 5 and the indentation groove. The pre-pressing plate 8 is arc-shaped and matches the shape of the indentation wheel 5. A relief groove 9 is formed on one side of the second pressing plate 4 close to the indentation groove.

[0054] By setting the above structure, when the first pressing plate 3 and the second pressing plate 4 approach each other, the cardboard is pre-indented by the pre-pressing plate 8 first, which plays a transitional role between the initial state and the final indentation of the cardboard, buffers the surface of the cardboard, avoids damage to the surface of the cardboard caused by direct indentation of the indentation wheel 5, and improves the indentation quality; the relief groove 9 is provided to provide an avoidance space for the indentation of the cardboard, facilitating the formation of the indentation.

[0055] In the cardboard indentation machine of this embodiment, top plates are arranged on both sides of the pre-pressing plate 8. A return spring 10 is arranged on the top plates and is slidably connected to the installation cavity. The other end of the return spring 10 is connected to a limit block fixed to the first pressing plate 3.

[0056] The return spring 10 is set. The return spring 10 pushes the top plate and the pre-pressing plate 8 to pre-press the surface of the cardboard. While the return spring 10 provides a pre-pressure, it pushes the pre-pressing plate 8 out of the first pressing plate 3 when the pressing plate moves away, ensuring full contact with the cardboard during the next indentation; the above structure of the pre-pressing plate 8 plays a certain guiding role for the indentation wheel 5, further improving the indentation stability.

[0057] In the cardboard indentation machine of this embodiment, the left first pressing plate 3 and the right second pressing plate 4, as well as the left second pressing plate 4 and the right first pressing plate 3 are respectively fixedly connected through connecting plates 11, and the distance between the two groups of connecting plates 11 is adjustable.

[0058] By adjusting the distance between the connecting plates 11, the distance between the first pressing plate 3 and the second pressing plate 4 in the two groups of pressing components is adjusted simultaneously, which is convenient for adjustment to process indentations of different depths, improving the practicability.

[0059] In the cardboard indentation machine of this embodiment, a bidirectional threaded rod 12 and a guide rod are vertically arranged on the workbench 2. The bidirectional threaded rod 12 is respectively threadedly connected to two groups of connecting plates 11, and the guide rod penetrates through the two groups of connecting plates 11 and is slidably connected to the connecting plates 11.

[0060] A motor is arranged at the top of the bidirectional threaded rod 12, and the motor drives the bidirectional threaded rod 12 to rotate to drive the upper and lower connecting plates 11 to approach or move away from each other; preferably, a guide block is arranged on one side of the connecting plate 11 close to the workbench 2, and a guide groove is formed on the workbench 2 to further limit the connecting plate 11 and the pressing assembly, improving the stability of the spacing adjustment.

[0061] In the cardboard indentation machine of this embodiment, the guiding assembly includes guiding plates 13 arranged opposite to each other up and down, and further includes guiding blocks 14 arranged on the first pressing plate 3 or the second pressing plate 4. There are two guiding blocks 14 arranged opposite to each other. The guiding block 14 includes an inclined plate portion and a straight plate portion, and the straight plate portion is arranged along the cardboard conveying direction.

[0062] The guiding plate 13 is arranged to limit and guide the cardboard in the thickness direction, and the guiding block 14 is arranged to guide and limit the cardboard in the left and right directions, ensuring that the cardboard is conveyed between the two driving rollers 1 along the expected path and is indented.

[0063] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "rotation" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0064] Although the embodiments of the present invention have been shown and described in detail, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous folding cardboard, characterized in that, The cardboard body comprises a plurality of unit cardboards connected by a bending portion, the unit cardboards are provided with an indentation group matching the bending portion, the indentation group is located on the front or back of the unit cardboard, and the unit cardboards are conveniently folded and assembled into a carton through the indentation group.

2. A continuous folding cardboard according to claim 1, characterized in that, The indentation group includes a first indentation and a second indentation, the first indentation and the second indentation are arranged at an interval, and the depth of the first indentation is greater than the depth of the second indentation.

3. A continuous folding cardboard according to claim 2, characterized in that, The indentation group further includes a third indentation, the first indentation and the second indentation are respectively perpendicular to the bending portion, and the third indentation is arranged parallel to the bending portion.

4. A cardboard indentation machine, characterized in that, Used for processing the continuous folding cardboard according to any one of claims 1 to 3, comprising driving rollers, wherein two groups of driving rollers are arranged opposite to each other above a workbench, an indentation assembly and a guide assembly are arranged between the two groups of driving rollers, and two groups of indentation assemblies are symmetrically arranged about the guide assembly, and the two groups of indentation assemblies indent both sides of the cardboard respectively.

5. The cardboard indentation machine according to claim 4, characterized in that, The indentation assembly comprises a first pressing plate and a second pressing plate which are arranged opposite to each other up and down and whose relative distance is adjustable, and an indentation wheel is movably installed in the first pressing plate.

6. A cardboard indentation machine according to claim 5, characterized in that, The creasing wheel is slidably connected to a mounting cavity provided inside the first pressing plate. A creasing groove matching the creasing wheel is provided at the bottom of the first pressing plate. The extending direction of the creasing groove is perpendicular to the conveying direction of the paperboard.

7. A cardboard indentation machine according to claim 6, characterized in that, The creasing wheel is rotatably mounted on a mounting frame, the top of the mounting frame is slidably connected to the first pressing block via a slider, the slider is threadedly connected to a screw rod, and the screw rod is rotatably connected to the first pressing block.

8. A cardboard indentation machine according to claim 6, characterized in that, A pre-pressing plate is arranged between the indentation wheel and the indentation groove. The pre-pressing plate is arc-shaped and matches the shape of the indentation wheel. A clearance groove is provided on one side of the second pressing plate close to the indentation groove.

9. The cardboard indentation machine according to claim 8, characterized in that, Top plates are arranged on both sides of the pre-pressing plate, a return spring is arranged on the top plate and is slidably connected to the mounting cavity, and the other end of the return spring is connected to a limit block fixed to the first pressing plate.

10. A cardboard indentation machine according to claim 5, characterized in that, The first pressing plate on the left and the second pressing plate on the right, as well as the second pressing plate on the left and the first pressing plate on the right are fixedly connected via connecting plates, respectively, and the distance between the two sets of connecting plates is adjustable.

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