A paperboard printing and cutting apparatus

Abstract

The application discloses a paperboard printing and cutting equipment and belongs to the paperboard processing machinery field.The cutting equipment comprises a rack, a conveying belt arranged on the rack, a printing device and a cutting device which are sequentially arranged on the conveying belt along a feeding direction, a driving mechanism arranged on the conveying belt and used for driving the cutting device to move close to or away from the printing device, a support arranged at the bottom of the conveying belt, guide rods fixedly arranged on the two sides of the support, a bottom support which is sleeved on the conveying belt and is in sliding connection with the guide rods, and a first hydraulic rod arranged on the support and fixedly connected with the output end of the bottom support.The cutting device is driven to move along the conveying belt by the driving mechanism, the distance between the cutting device and the printing device is flexibly adjusted, the cutting requirement of paperboards with different length specifications is adapted, the limitation that the traditional equipment can only cut paperboards with a single length is effectively solved, and the practicability and the application range of the paperboard printing and cutting equipment are greatly improved.

Description

Technical Field

[0001] This application relates to the field of paperboard processing machinery technology, specifically a paperboard printing and cutting device. Background Technology

[0002] In the paperboard processing industry, printing patterns or text on paperboard and cutting it to specific sizes as required are key processes to ensure the functionality and aesthetics of products. However, early paperboard processing equipment on the market generally adopted a structure where printing and cutting functions were separate. The paperboard had to be printed on a printing press first, and then transferred manually or mechanically to a cutting machine for cutting. This separate processing mode has obvious drawbacks: on the one hand, the paperboard needs to undergo two loading and unloading operations, and the intermediate transfer link not only consumes a lot of time and reduces production efficiency, but also requires separate installation space for two independent machines, resulting in a large overall footprint; on the other hand, the paperboard is easily affected by external forces during the transfer process, causing positional shifts, which can easily lead to misalignment between the cutting position and the printed pattern during subsequent die-cutting, resulting in a large amount of waste and increased production costs.

[0003] To address the drawbacks of the aforementioned separate processing methods, existing technologies are gradually moving towards equipment integration. The mainstream improvement solution involves sequentially installing printing and cutting equipment along the same conveyor belt in the material transport direction. This functional integration not only eliminates intermediate transfer links and saves production time but also simplifies the cardboard production process, achieving improvements in efficiency and space utilization.

[0004] Among them, Chinese utility model patent CN220994621U discloses a cardboard printing and cutting device. This device, through the coordinated operation of a guiding mechanism, a cutting mechanism, and an adjusting mechanism, forms an adaptive solution for cardboard of different thicknesses: the guiding roller guides the cardboard into the adjusting mechanism, and the adjusting mechanism controls the cutting mechanism to make adaptive adjustments based on the cardboard thickness feedback information. This effectively avoids the problem of the cutter head being damaged due to thickness mismatch, and achieves precise adjustment of the drive motor without having to amplify the feedback signal multiple times, thus having a certain advantage in thickness adaptability. Specifically, under normal conditions, when the adjusting roller is not in contact with the cardboard, the adjusting block is located at the bottom of the movable shell; when the cardboard contacts the adjusting roller, cardboard of different thicknesses exerts different squeezing forces on the adjusting roller, causing the adjusting roller to move upward and drive the adjusting block, movable plate, and guide column to move upward synchronously through the connecting rod until the first contact plate on the movable plate contacts the second contact plate, at which point the controller starts the drive motor; at the same time, after the first contact plate contacts the second contact plate, the resistance wire is energized, and the resistance gradually decreases during the upward movement of the dicing blade. The controller adjusts the drive motor speed in real time based on the resistance change to ensure that the motor speed is precisely matched with the cardboard thickness.

[0005] However, in practical applications, the patented equipment has limitations. In cardboard processing scenarios, the size and length of the cardboard to be processed vary significantly. Cardboard of different lengths corresponds to different cutting position requirements. The cutting mechanism of this equipment is fixed inside the frame and cannot flexibly adjust its position according to the length of the cardboard. It can only cut and process cardboard of a single length, making it difficult to adapt to the cutting needs of cardboard of multiple specifications, thus limiting its practicality.

[0006] Therefore, this application provides a paperboard printing and cutting device to solve the above-mentioned problems. Utility Model Content

[0007] This application provides a paperboard printing and cutting device, which aims to solve the problems mentioned in the background art, such as the fixed setting of the cutting mechanism in existing paperboard printing and cutting devices, the inability to flexibly adjust the position according to the length of the paperboard, the inability to cut paperboard of a single length specification, the difficulty in adapting to the cutting needs of multiple specifications of paperboard, and the limited practicality.

[0008] To achieve the above objectives, this application provides the following technical solution: a cardboard printing and cutting device, comprising a frame, a conveyor belt mounted on the frame, and a printing device and a cutting device sequentially mounted on the conveyor belt along the feeding direction; the conveyor belt is provided with a driving mechanism for driving the cutting device to move closer to or away from the printing device, the driving mechanism comprising a bracket mounted at the bottom of the conveyor belt, guide rods fixedly mounted on both sides of the bracket, a base sleeved on the conveyor belt and slidably connected to the guide rods, and a first hydraulic rod mounted on the bracket, the output end of the first hydraulic rod being fixedly connected to the base, and the cutting device being mounted on the base. When different lengths of cardboard need to be cut, the first hydraulic rod is activated, its output end extending or shortening, driving the base to slide along the guide rods towards or away from the printing device, while the cutting device, mounted on the base, moves synchronously with the base, thereby adjusting the position of the cutting device to match the current cardboard length cutting requirements.

[0009] Preferably, the base has a through hole for fitting the guide rod, and the guide rod is slidably inserted into the through hole. This fitting design of the through hole and guide rod provides stable guidance for the sliding of the base, preventing lateral shift or wobbling during movement, ensuring precise positioning of the cutting device as it moves with the base, and thus guaranteeing the accuracy of the cutting position for cardboard of different lengths, improving cutting quality.

[0010] Preferably, to prevent the base tray from affecting the movement of the cardboard on the conveyor belt: a ramp is fixedly connected to one end of the base tray near the printing device, and the lower surface of the ramp is interference-fitted with the upper surface of the conveyor belt. The ramp effectively avoids the obstruction caused by the base tray on the movement of the cardboard on the conveyor belt, allowing the cardboard to smoothly transition from the conveyor belt to the area near the base tray, ensuring the smoothness of the cardboard feeding process, avoiding production efficiency affected by cardboard jamming, and preventing the cardboard from shifting position due to collision with the base tray, thus ensuring the alignment accuracy of subsequent cutting and printing patterns.

[0011] Preferably, the cutting device includes a gantry frame fixedly installed on the top of the base, a blade holder disposed at the bottom of the gantry frame, a cutter fixedly installed at the bottom of the blade holder, and a second hydraulic rod fixedly installed on the top of the gantry frame. The output end of the second hydraulic rod passes through the gantry frame and is fixedly connected to the blade holder. Through the coordinated action of the gantry frame, blade holder, cutter, and second hydraulic rod, the cutter can be stably raised and lowered, ensuring accurate and efficient cutting of the cardboard. At the same time, the gantry frame provides stable installation support for each component, ensuring the stability of the overall structure of the cutting device during the cutting process, reducing cutting deviation, and improving cutting quality and efficiency.

[0012] Preferably, the cutting device further includes vertical guide rails fixedly connected to the inner side walls of the gantry frame and a slider slidably fitted onto the vertical guide rails and fixedly connected to the blade holder. The cooperative design of the vertical guide rails and the slider precisely limits the lifting trajectory of the blade holder, preventing lateral deviation or wobbling during lifting and lowering, ensuring that the cutter always moves along the preset vertical direction, further improving the positional accuracy of the cutter cutting the cardboard, avoiding misalignment between the cut pattern and the printed pattern due to blade holder deviation, and ensuring cutting quality.

[0013] Preferably, to reduce the impact of the cutter on the base, a blade holder for adapting to the cutter is fixedly connected to the top of the base. The blade holder effectively prevents the cutter from directly contacting the base during cutting, preventing scratches or damage to the base and extending its service life. Simultaneously, the blade holder provides stable support for the cutter, preventing blade deformation due to uneven force during cutting and ensuring the cutter's cutting performance and accuracy.

[0014] This application uses a drive mechanism to move the cutting device along the conveyor belt, thereby enabling flexible adjustment of the distance between the cutting device and the printing device. This allows it to adapt to the cutting needs of cardboard of different lengths and effectively solves the limitation of traditional equipment that can only cut cardboard of a single length, significantly improving the practicality and applicability of cardboard printing and cutting equipment.

[0015] The inclined plate in this application can effectively avoid the obstruction caused by the bottom tray to the movement of the cardboard on the conveyor belt, so that the cardboard can smoothly transition from the conveyor belt to the area near the bottom tray, ensuring the smoothness of the cardboard feeding process, avoiding the impact of cardboard jamming on production efficiency, and preventing the cardboard from shifting position due to collision with the bottom tray, thus ensuring the alignment accuracy of subsequent cutting and printing patterns. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a cardboard printing and cutting device; Figure 2 for Figure 1 The structural bottom view in the middle; Figure 3 This is a schematic diagram of the drive mechanism; Figure 4 This is a schematic diagram of the cutting device.

[0017] In the picture: 1. Frame; 2. Conveyor belt; 3. Printing device; 4. Cutting device; 41. Gantry frame; 42. Knife holder; 43. Cutting knife; 44. Second hydraulic rod; 45. Vertical guide rail; 46. Slider; 47. Knife support; 5. Drive mechanism; 51. Bracket; 52. Guide rod; 53. Base support; 531. Through hole; 54. First hydraulic rod; 6. Inclined plate. Detailed Implementation

[0018] The technical solutions of the embodiments of this application 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 application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] This embodiment provides a paperboard printing and cutting device, such as... Figure 1-4As shown, the cutting equipment includes a frame 1, a conveyor belt 2 mounted on the frame 1, and a printing device 3 and a cutting device 4 sequentially mounted on the conveyor belt 2 along the feeding direction. The conveyor belt 2 is equipped with a drive mechanism 5 for moving the cutting device 4 closer to or further away from the printing device 3. The drive mechanism 5 includes a bracket 51 at the bottom of the conveyor belt 2, guide rods 52 fixedly mounted on both sides of the bracket 51, a base support 53 sleeved on the conveyor belt 2 and slidably connected to the guide rods 52, and a first hydraulic rod 54 mounted on the bracket 51. The output end of the first hydraulic rod 54 is fixedly connected to the base support 53, and the cutting device 4 is mounted on the base support 53. By driving the cutting device 4 along the conveyor belt 2 through the drive mechanism 5, the distance between the cutting device 4 and the printing device 3 can be flexibly adjusted, thereby adapting to the cutting needs of cardboard of different lengths and effectively solving the limitation of traditional equipment that can only cut cardboard of a single length, significantly improving the practicality and applicability of the cardboard printing and cutting equipment. When different lengths of cardboard need to be cut, the first hydraulic rod 54 is activated, and its output end extends or shortens, causing the base 53 to slide along the guide rod 52 toward or away from the printing device 3. The cutting device 4 is mounted on the base 53 and moves synchronously with the base 53, thereby adjusting the position of the cutting device 4 to match the current cardboard length cutting requirements.

[0020] The base 53 has a through hole 531 for fitting with the guide rod 52, which is slidably inserted into the through hole 531. This fitting design of the through hole 531 and the guide rod 52 provides stable guidance for the sliding of the base 53, preventing lateral shift or wobbling during movement. This ensures the precise positioning of the cutting device 4 as it moves with the base 53, thereby guaranteeing the accuracy of the cutting position for cardboard of different lengths and improving cutting quality. The through hole 531 on the base 53 is sized to match the guide rod 52, which is slidably inserted into the through hole 531. When the first hydraulic rod 54 drives the base 53 to move, the through hole 531 slides along the axial direction of the guide rod 52. The guide rod 52 restricts the movement trajectory of the base 53 through the through hole 531, preventing the base 53 from deviating from the preset direction during sliding and reducing positional deviation of the cutting device 4 caused by the shaking of the base 53.

[0021] To prevent the base tray 53 from affecting the movement of the cardboard on the conveyor belt 2, a slant plate 6 is fixedly connected to one end of the base tray 53 near the printing device 3, and the lower surface of the slant plate 6 is interference-fitted with the upper surface of the conveyor belt 2. The slant plate 6 effectively avoids the obstruction caused by the base tray 53 on the movement of the cardboard on the conveyor belt 2, allowing the cardboard to smoothly transition from the conveyor belt 2 to the area near the base tray 53. This ensures smooth cardboard feeding, avoids production efficiency issues caused by cardboard jamming, and prevents the cardboard from shifting position due to collisions with the base tray 53, ensuring the alignment accuracy of subsequent cutting and printing patterns. After the cardboard is printed by the printing device 3, it is conveyed towards the cutting device 4 along the conveyor belt 2. When the cardboard moves to the position of the base tray 53, it first contacts the inclined surface of the slant plate 6. Under the conveying force of the conveyor belt 2, it smoothly slides along the inclined surface of the slant plate 6 onto the conveyor belt 2 without being blocked by the end of the base tray 53, thus achieving smooth cardboard feeding.

[0022] The cutting device 4 includes a gantry frame 41 fixedly mounted on top of the base 53, a blade holder 42 disposed at the bottom of the gantry frame 41, a cutter 43 fixedly mounted at the bottom of the blade holder 42, and a second hydraulic rod 44 fixedly mounted on top of the gantry frame 41. The output end of the second hydraulic rod 44 passes through the gantry frame 41 and is fixedly connected to the blade holder 42. Through the coordinated action of the gantry frame 41, the blade holder 42, the cutter 43, and the second hydraulic rod 44, the cutter 43 can be stably raised and lowered, ensuring that the cutter 43 can accurately and efficiently cut the cardboard. At the same time, the gantry frame 41 provides a stable mounting support for each component, ensuring the stability of the overall structure of the cutting device 4 during the cutting process, reducing cutting deviation, and improving cutting quality and efficiency. When the cardboard is conveyed to the cutting position, the second hydraulic rod 44 is activated, and its output end extends downward, driving the blade holder 42 to move downward in sync. The blade holder 42 then drives the cutter 43 to move downward, so that the cutter 43 contacts and cuts the cardboard. After the cutting is completed, the output end of the second hydraulic rod 44 retracts upward, driving the blade holder 42 and the cutter 43 to return to their original positions, waiting for the next cutting action.

[0023] The cutting device 4 also includes vertical guide rails 45 fixedly connected to the inner side walls of the gantry frame 41, and a slider 46 slidably sleeved on the vertical guide rails 45 and fixedly connected to the blade holder 42. The cooperative design of the vertical guide rails 45 and the slider 46 can precisely limit the lifting trajectory of the blade holder 42, preventing the blade holder 42 from shifting laterally or wobbling during lifting, ensuring that the cutter 43 always moves along the preset vertical direction, further improving the positional accuracy of the cutter 43 in cutting the cardboard, avoiding misalignment between the cutting pattern and the printed pattern due to the offset of the blade holder 42, and ensuring cutting quality. When the second hydraulic rod 44 drives the blade holder 42 to lift up and down, the blade holder 42 will drive the slider 46 to slide synchronously along the axial direction of the vertical guide rails 45; the vertical guide rails 45 constrain the movement direction of the blade holder 42 through the slider 46, limiting the horizontal displacement of the blade holder 42, so that the blade holder 42 can only move stably in the vertical direction, thereby ensuring the accuracy of the cutting trajectory of the cutter 43.

[0024] To reduce the impact of the cutter 43 on the base 53, a blade holder 47 is fixedly connected to the top of the base 53 for adaptation to the cutter 43. The blade holder 47 effectively prevents the cutter 43 from directly contacting the base 53 during cutting, preventing scratches or damage to the base 53 and extending its service life. Simultaneously, the blade holder 47 provides stable support for the cutter 43, preventing blade deformation due to uneven force during cutting and ensuring its cutting performance and accuracy. When the cutter 43 cuts the cardboard downwards under the drive of the second hydraulic rod 44, the cutter 43 first cuts the cardboard, and then the blade contacts the blade holder 47. The blade holder 47 absorbs the cutting force of the cutter 43, preventing it from directly impacting the base 53, thus protecting it from damage. It also provides stable force support for the cutter 43, ensuring a smooth cutting operation.

[0025] The control method of this application is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0026] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0027] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0028] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A cardboard printing and cutting device, comprising a frame (1), a conveyor belt (2) disposed on the frame (1), and a printing device (3) and a cutting device (4) sequentially mounted on the conveyor belt (2) along the feeding direction. Its features are: The conveyor belt (2) is provided with a drive mechanism (5) for driving the cutting device (4) to move closer to or away from the printing device (3). The drive mechanism (5) includes a bracket (51) provided at the bottom of the conveyor belt (2), guide rods (52) fixedly installed on both sides of the bracket (51), a base (53) sleeved on the conveyor belt (2) and slidably connected to the guide rods (52), and a first hydraulic rod (54) installed on the bracket (51). The output end of the first hydraulic rod (54) is fixedly connected to the base (53), and the cutting device (4) is installed on the base (53).

2. The cardboard printing and cutting equipment according to claim 1, characterized in that: The base (53) has a through hole (531) for fitting the guide rod (52), and the guide rod (52) is slidably inserted into the through hole (531).

3. The paperboard printing and cutting equipment according to claim 1, characterized in that: The bottom support (53) is fixedly connected to an inclined plate (6) at one end near the printing device (3), and the lower surface of the inclined plate (6) is interference-fitted with the upper surface of the conveyor belt (2).

4. The cardboard printing and cutting equipment according to claim 1, characterized in that: The cutting device (4) includes a gantry frame (41) fixedly installed on the top of the base (53), a knife holder (42) set at the bottom of the gantry frame (41), a cutter (43) fixedly installed at the bottom of the knife holder (42), and a second hydraulic rod (44) fixedly installed on the top of the gantry frame (41). The output end of the second hydraulic rod (44) passes through the gantry frame (41) and is fixedly connected to the knife holder (42).

5. The cardboard printing and cutting equipment according to claim 4, characterized in that: The cutting device (4) further includes a vertical guide rail (45) fixedly connected to the inner two side walls of the gantry frame (41) and a slider (46) slidably sleeved on the vertical guide rail (45) and fixedly connected to the knife holder (42).

6. The cardboard printing and cutting equipment according to claim 4, characterized in that: The top of the base (53) is fixedly connected to a blade holder (47) for adaptation to the cutter (43).

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