Numerical control notching device for corrugated board

Abstract

The utility model relates to the technical field of paperboard notching equipment, and particularly discloses a numerical control notching device for corrugated boards, which comprises a supporting flat plate and a movable tool apron, the movable tool apron comprises a connecting sliding plate and a notching tool plate, the connecting sliding plate is arranged at the bottom of the supporting flat plate in a sliding mode, a fixing belt is horizontally arranged at the bottom of the supporting flat plate, a downward-pressing air cylinder and a transmission plate are arranged outside the connecting sliding plate, and the downward-pressing air cylinder is located over the transmission plate. One face of the transmission plate is arranged outside the connecting sliding plate in a sliding mode, a transmission connecting rod is arranged at the power output end of the downward pressing air cylinder, one end of the transmission connecting rod is hinged to the top of the transmission plate, the top of the notching cutter plate is arranged under the transmission plate, and a limiting mechanism used for clamping and fixing a belt is arranged outside the connecting sliding plate. The automatic positioning effect of the movable tool apron can be achieved through the limiting mechanism, the movable tool apron can be conveniently adjusted to be aligned with the position, needing to be notched, of a paperboard, and the position accuracy during alignment notching is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard grooving equipment, and in particular to a CNC grooving device for corrugated cardboard. Background Technology

[0002] Cardboard boxes are the most widely used packaging products, and packaging cardboard boxes are an indispensable part of modern logistics. Commonly used packaging cardboard boxes mainly use corrugated cardboard boxes and single-layer cardboard boxes. Both corrugated cardboard boxes and single-layer cardboard boxes are formed by cutting and creasing cardboard, then folding and gluing it to form the box shape. After the cardboard is cut and creasing, it also needs to be grooved.

[0003] Corrugated cardboard is a type of board material composed of a corrugated core layer and a cover layer formed between two or more layers of cardboard. The corrugated core layer is corrugated, and the corrugations are connected in rows and support each other to form a triangular structure, which has good mechanical strength and can withstand a certain amount of pressure on a flat surface. Existing corrugated cardboard needs to be cut, creasing, and grooving according to actual production needs. In the production of paper products such as packaging boxes, display racks, and partitions, grooves are punched into the surface of the cardboard to allow the cardboard to be precisely bent to form a three-dimensional structure. In the production of large packaging boxes and cushioning pads, grooving can remove excess cardboard and reduce the amount of cardboard used. In existing cardboard grooving equipment, the grooving knife holder is mostly fixed, which makes it inconvenient to move and adjust the position of the grooving knife during the grooving process. Even if an adjustable grooving knife structure is used to adjust the position of the grooving knife, it is difficult to ensure that the knife can be completely aligned with the position of the cardboard to be grooved, making it difficult to achieve accurate positioning of the knife during grooving. Furthermore, it is difficult to ensure that the grooving knife will not deviate or wobble during the pressing process, thus affecting the quality of cardboard grooving.

[0004] Referring to patent publication number "CN222039759U", patent title "Corrugated Board Positioning and Grooving Equipment for Corrugated Board Processing", this technical solution discloses "a corrugated board positioning and grooving equipment for corrugated board processing. The board correction and positioning device can achieve precise correction and positioning of the corrugated board. Its design, with rolling support on both sides against the outer edge of the corrugated board, effectively corrects deviations during conveying, ensuring the corrugated board is in the correct position before grooving. Secondly, the design of the conveyor drive device enables the board pressing device and the board creasing device to achieve simultaneous..." The step-by-step rotation mechanism ensures the stability and continuity of the corrugated cardboard during transport. Furthermore, the combined use of the cardboard pressing and creasing devices allows the corrugated cardboard to be fully compacted and creasing before slotting. While this technology can automate the creasing and slotting process and ensure sufficient compaction and creasing before slotting, it cannot effectively adjust the position of the slotting cutter, making it difficult to guarantee the precise position of the cutter head during slotting and consequently, the quality of the cardboard slotting process.

[0005] Therefore, improving the positioning accuracy of the punch groove is the main technical problem that technicians need to solve. Utility Model Content

[0006] The purpose of this invention is to provide a CNC punching device for corrugated cardboard to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a CNC punching device for corrugated cardboard, comprising:

[0008] Support plate, movable tool holder, and limiting mechanism;

[0009] The movable tool holder includes a connecting slide plate and a grooving tool plate. The connecting slide plate is slidably disposed on the bottom of the support plate, and a fixed belt is horizontally disposed on the bottom of the support plate. A pressing cylinder and a transmission plate are respectively disposed on the outside of the connecting slide plate. The pressing cylinder is located directly above the transmission plate, and one side of the transmission plate is slidably disposed on the outside of the connecting slide plate. A transmission connecting rod is disposed at the power output end of the pressing cylinder. One end of the transmission connecting rod is hinged to the top of the transmission plate. The top of the grooving tool plate is disposed directly below the transmission plate.

[0010] The limiting mechanism is located outside the connecting slide plate. The limiting mechanism includes two symmetrically arranged limiting cylinders. The two limiting cylinders are respectively located on the outer sides of the connecting slide plate, and a limiting plate is provided on the power output end of the limiting cylinder. The fixing belt is located between the limiting plate and the limiting cylinder.

[0011] Preferably, the top of the transmission plate is provided with a limiting groove for inserting the transmission connecting rod, and the top of the transmission plate is provided with a mounting through hole that is hinged to one end of the transmission connecting rod, the mounting through hole corresponding to the position of the limiting groove.

[0012] Preferably, the bottom of the grooving cutter is inclined, and the inclined surface of the grooving cutter has a number of teeth evenly distributed.

[0013] Preferably, a mounting slot is provided directly below the transmission plate, and a number of fixing screw holes are evenly distributed in the mounting slot. A number of mounting through holes are provided on the top of the grooving blade, and the number of mounting through holes corresponds one-to-one with the number of fixing screw holes. The grooving blade is detachably installed inside the mounting slot.

[0014] Preferably, a movable slider is provided on one side of the transmission plate, and a guide rail is provided on the outside of the connecting slide plate, with the movable slider slidingly engaged with the guide rail.

[0015] Preferably, a limiting stud is provided on the outside of the limiting cylinder near the fixed belt, and the end of the limiting stud corresponds to the center of the limiting plate.

[0016] Preferably, the limiting mechanism further includes a mounting plate, one side of which is fixed to the outside of the connecting slide plate, and the limiting cylinder is detachably disposed on the other side of the mounting plate.

[0017] Preferably, a bearing plate is provided directly below the supporting plate. The bearing plate has a strip-shaped opening on the side facing the movable tool holder for inserting the grooving tool, and the width of the strip-shaped opening is adapted to the bottom width of the grooving tool.

[0018] Compared with the prior art, this technical solution provides a CNC grooving device for corrugated cardboard: by setting a support plate, a movable knife holder, and a limiting mechanism, the movable knife holder includes a connecting slide plate and a grooving knife plate. The connecting slide plate is slidably set at the bottom of the support plate. A fixed belt is horizontally set at the bottom of the support plate. A pressing cylinder and a transmission plate are respectively set on the outside of the connecting slide plate. The pressing cylinder is located directly above the transmission plate. One side of the transmission plate is slidably set on the outside of the connecting slide plate. A transmission connecting rod is set at the power output end of the pressing cylinder. One end of the transmission connecting rod is hinged to the top of the transmission plate. The top of the grooving knife plate is set directly below the transmission plate. Then, the pressing cylinder can drive the transmission connecting rod to press down. The transmission connecting rod drives the transmission plate to reciprocate and slide on the outside of the connecting slide plate, realizing the reciprocating sliding of the grooving knife plate and ensuring the smooth transmission effect during grooving.

[0019] Furthermore, by setting the limiting mechanism outside the connecting slide plate, the limiting mechanism includes two symmetrically arranged limiting cylinders, with the two limiting cylinders respectively located on the outer sides of the connecting slide plate. A limiting plate is also provided on the power output end of the limiting cylinders, and the fixing belt is positioned between the limiting plate and the limiting cylinder. Therefore, the limiting cylinder can drive the limiting plate to press against the fixing belt, achieving the function of clamping the fixing belt. This achieves automated positioning of the moving knife holder, thereby ensuring the stable position of the grooving knife plate. This utility model is simple, effectively saves costs, and ensures smooth transmission during grooving, improving the accuracy of grooving positioning and thus ensuring the quality of cardboard production. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the connection structure between the movable tool holder and the fixed belt in this utility model.

[0023] Figure 3 This is a schematic diagram of the movable tool holder from another perspective in this utility model.

[0024] Figure 4 This is a schematic diagram of the limiting cylinder and limiting plate structure in this utility model.

[0025] Figure 5 This is a schematic diagram of the transmission plate structure in this utility model.

[0026] As indicated by the markings in the diagram: 1. Support plate; 11. Fixing belt; 12. Bearing plate; 21. Connecting slide plate; 22. Slotting blade; 31. Limiting cylinder; 32. Limiting plate; 33. Mounting vertical plate; 66. Limiting groove; 77. Locking through hole; 88. Mounting slot; 99. Fixing screw hole; 120. Strip opening; 210. Pressing cylinder; 211. Transmission plate; 212. Transmission connecting rod; 311. Limiting stud. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model 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 this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0028] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] In the description of this utility model, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] It should be understood that although the terms "first," "second," "third," etc., may be used to describe various components in this invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of this invention, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] The following is in conjunction with the appendix Figures 1 to 5 The technical solutions of the embodiments of this utility model are described in detail.

[0034] In Example 1, to achieve automated positioning of the grooving cutter after adjusting its position, ensuring stable positioning and improving the quality of cardboard grooving, this example includes a support plate 1, a movable cutter holder, and a limiting mechanism. The movable cutter holder includes a connecting slide plate 21 and a grooving cutter plate 22. The connecting slide plate 21 is slidably mounted on the bottom of the support plate 1. A fixing belt 11 is horizontally mounted on the bottom of the support plate 1. The limiting mechanism is located outside the connecting slide plate 21 and includes two... The limiting cylinders 31 are set on the outer sides of the connecting slide plate 21, and the power output end of the limiting cylinders 31 is provided with a limiting plate 32. The fixing belt 11 is located between the limiting plate 32 and the limiting cylinders 31. Therefore, the limiting cylinders 31 can drive the limiting plate 32 to press against the fixing belt 11, thereby achieving the function of clamping the fixing belt 11. This achieves automatic positioning of the moving knife holder, ensuring the stable position of the grooving knife plate 22, improving the grooving positioning accuracy, and thus ensuring the quality of paperboard production.

[0035] It should be noted that by setting a limiting stud 311 on the outside of the limiting cylinder 31 near the fixed belt 11, and making the end of the limiting stud 311 correspond to the center of the limiting plate 32, when it is necessary to position the grooving cutter holder, the power output end of the limiting cylinder 31 can be retracted to move the limiting plate 32 toward the limiting cylinder 31. Then, the fixed belt 11 can be clamped by one side of the limiting plate 32 and the limiting stud 311. That is, one end of the limiting stud 311 and one side of the limiting plate 32 respectively abut against the fixed belt 11 to achieve the function of limiting the grooving cutter holder.

[0036] It should be noted that the limiting mechanism also includes a mounting plate 33. One side of the mounting plate 33 is fixed to the outside of the connecting slide plate 21, so that the limiting cylinder 31 is detachably mounted on the other side of the mounting plate 33. The mounting plate 33 facilitates the fixing of the limiting cylinder 31. During daily maintenance, the detachable connection position between the limiting cylinder 31 and the mounting plate 33 can be used to facilitate the installation or removal of the fixed connection between the limiting cylinder 31 and the connecting plate, thereby ensuring the stable installation of the limiting cylinder 31.

[0037] In Example 2, to reduce the contact area between the grooving blade and the cardboard during grooving, thus preventing bending and deformation due to the large force area during the downward pressure of the grooving blade, this example includes a support plate 1 and a movable blade holder. The movable blade holder includes a connecting slide plate 21 and a grooving blade plate 22. The connecting slide plate 21 is slidably positioned at the bottom of the support plate 1. A fixing belt 11 is horizontally installed at the bottom of the support plate 1. A pressing cylinder 210 and a transmission plate 211 are respectively installed on the outside of the connecting slide plate 21. The pressing cylinder 210 is located on the transmission plate 211. Directly above 11, one side of the transmission plate 211 is slidably disposed outside the connecting slide plate 21, and a transmission connecting rod 212 is provided at the power output end of the pressing cylinder 210, with one end of the transmission connecting rod 212 hinged to the top of the transmission plate 211. The top of the grooving cutter 22 is installed directly below the transmission plate 211, so that the pressing cylinder 210 can drive the transmission connecting rod 212 to press down, and the transmission connecting rod 212 can drive the transmission plate 211 to reciprocate and slide outside the connecting slide plate 21, thereby realizing the reciprocating sliding of the grooving cutter 22 and ensuring the smooth transmission effect during grooving.

[0038] The bottom of the grooving blade 22 is inclined. Several teeth are evenly distributed on the inclined surface of the grooving blade 22. During the grooving process, when the power output end of the pressing cylinder 210 extends and drives the transmission plate 211 to move downward, the grooving blade 22 at the bottom of the transmission plate 211 can move toward the surface of the cardboard where grooving is required. The bottom of the grooving blade 22 is inclined so that the inclined surface of the grooving blade 22 contacts the surface of the cardboard. When the grooving blade 22 contacts the surface of the cardboard, one end of the bottom of the grooving blade 22 contacts the surface of the cardboard first. This reduces the contact area through the inclined surface of the grooving blade 22, thereby ensuring that the cardboard will not bend or deform due to a large force area, until the entire grooving blade 22 is completely pressed into the inside of the cardboard, thus completing the grooving action.

[0039] It should be noted that by providing a limiting groove 66 for inserting the transmission connecting rod 212 into the top of the transmission plate 211, and by having a mounting through hole through the top of the transmission plate 211 that is hinged to one end of the transmission connecting rod 212, the mounting through hole and the limiting groove 66 are positioned to correspond. The limiting groove 66 can limit the transmission connecting rod 212, and the mounting through hole allows the transmission connecting rod 212 to be hinged. When the power output end of the pressing cylinder 210 presses down to drive the transmission connecting rod 212, one end of the transmission connecting rod 212 can drive the top of the transmission plate 211. This reduces the uneven force on the transmission plate 211 caused by excessive load when the power output end of the pressing cylinder 210 extends, ensuring smooth transmission and uniform force during the grooving process, and preventing chipping due to excessive force.

[0040] It should be noted that by providing a movable slider on one side of the transmission plate 211 and a guide rail on the outside of the connecting slide plate 21, the movable slider and the guide rail can be slidably engaged, and the guide rail can be extended along the length of the connecting slide plate 21. This allows the transmission plate 211 to reciprocate up and down on the outside of the connecting plate when the power output end of the pressing cylinder 210 retracts or extends, ensuring smooth transmission and preventing the grooving blade 22 located at the bottom of the transmission plate 211 from shaking during the grooving process. This ensures that the grooving blade 22 can maintain a straight vertical movement during the grooving process.

[0041] It should be noted that a bearing plate 12 is also provided directly below the supporting plate 1. The side of the bearing plate 12 facing the moving knife holder has a strip opening 120 for the grooving knife plate 22 to be inserted. The width of the strip opening 120 is adapted to the bottom width of the grooving knife plate 22. When the cardboard is conveyed past the bearing plate 12 and the position of the cardboard to be grooved is directly below the moving knife holder, the conveying stops. During the grooving process, the grooving knife plate 22 can be pressed down and pass through the cardboard and enter the strip opening 120 to complete the grooving action. During this process, the strip opening 120 can ensure that the position of the grooving knife plate 22 is stable, further reducing the occurrence of shaking of the grooving knife plate 22.

[0042] It should also be noted that by providing a mounting slot 88 directly below the transmission plate 211, and evenly distributing a number of fixing screw holes 99 within the mounting slot 88, and by providing a number of locking through holes 77 on the top of the grooving cutter 22, with each locking through hole 77 corresponding to a number of fixing screw holes 99, the grooving cutter 22 can be detachably installed inside the mounting slot 88. During the installation of the grooving cutter 22, the top of the grooving cutter 22 is placed inside the mounting slot 88, and screws can be passed through the locking through holes 77 and connected to the fixing screw holes 99, thus fixing the top of the grooving cutter 22 at the bottom of the transmission plate 211, thereby facilitating the installation and removal of the grooving cutter 22.

[0043] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0044] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A numerically controlled slotting device for corrugated board, characterized in that include: Support plate, movable tool holder, and limiting mechanism; The movable tool holder includes a connecting slide plate and a grooving tool plate. The connecting slide plate is slidably disposed on the bottom of the support plate, and a fixed belt is horizontally disposed on the bottom of the support plate. A pressing cylinder and a transmission plate are respectively disposed on the outside of the connecting slide plate. The pressing cylinder is located directly above the transmission plate, and one side of the transmission plate is slidably disposed on the outside of the connecting slide plate. A transmission connecting rod is disposed at the power output end of the pressing cylinder. One end of the transmission connecting rod is hinged to the top of the transmission plate. The top of the grooving tool plate is disposed directly below the transmission plate. The limiting mechanism is located outside the connecting slide plate. The limiting mechanism includes two symmetrically arranged limiting cylinders. The two limiting cylinders are respectively located on the outer sides of the connecting slide plate, and a limiting plate is provided on the power output end of the limiting cylinder. The fixing belt is located between the limiting plate and the limiting cylinder.

2. A numerically controlled slotting device for corrugated board according to claim 1, characterized in that The top of the transmission plate has a limiting groove for inserting the transmission connecting rod, and the top of the transmission plate has a through hole that is hinged to one end of the transmission connecting rod. The position of the through hole corresponds to that of the limiting groove.

3. A numerically controlled slotting device for corrugated board according to claim 1, characterized in that, The bottom of the grooving cutter is inclined, and the inclined surface of the grooving cutter has a number of teeth evenly distributed.

4. The numerically controlled slotting device for corrugated board according to claim 1, characterized in that, The transmission plate has a mounting slot directly below it, and a number of fixing screw holes are evenly distributed in the mounting slot. The top of the grooving blade has a number of mounting through holes, and the mounting through holes correspond one-to-one with the fixing screw holes. The grooving blade is detachably installed inside the mounting slot.

5. The numerically controlled slotting device for corrugated board according to claim 1, characterized in that, A movable slider is provided on one side of the transmission plate, and a guide rail is provided on the outside of the connecting slide plate. The movable slider slides in cooperation with the guide rail.

6. A numerically controlled slotting device for corrugated board according to claim 1, characterized in that, The limiting cylinder is provided with a limiting stud near the outside of the fixed belt, and the end of the limiting stud corresponds to the center of the limiting plate.

7. A numerically controlled slotting device for corrugated board according to claim 1, characterized in that, The limiting mechanism also includes a mounting plate, one side of which is fixed to the outside of the connecting slide plate, and the limiting cylinder is detachably mounted on the other side of the mounting plate.

8. The numerically controlled slotting device for corrugated board according to claim 1, characterized in that, A bearing plate is also provided directly below the supporting plate. The bearing plate has a strip-shaped opening on the side facing the movable tool holder for inserting the grooving tool plate, and the width of the strip-shaped opening is adapted to the bottom width of the grooving tool plate.

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