A single carton dividing device for carton production

Abstract

The application belongs to the technical field of carton processing, and discloses a single carton segmentation device for carton production, which comprises a rack, a plate body fixedly connected to the surface of the rack, a blanking plate fixedly connected to the plate body, a cutting device arranged on the rack, the cutting device comprising a cutting mechanism, the cutting mechanism comprising two guide frames arranged on the rack, a sliding frame in sliding connection with the guide frames, and a cutter body arranged on the sliding frame, the cutting device further comprising a fixed-length mechanism for fixing the length of a paperboard, a conveying mechanism for conveying the paperboard, and a control mechanism, the control mechanism being used for controlling the operation of the cutter body and the conveying mechanism, and controlling the fixed-length mechanism to fix the length of the paperboard before the cutter body cuts, the single power source being used to realize the cooperative operation of the three mechanisms of cutting, fixed-length, and conveying, the complicated logic control being not needed, the detection error of the traditional detection mechanism being reduced, the cutting position precision being stable and reliable, and the generation of size-unqualified defective products being greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of paper box processing technology, and in particular to a single paper box cutting device for paper box production. Background Technology

[0002] Paper boxes are paper containers made primarily of paper or cardboard through processes such as die-cutting, creasing, folding, and gluing. They are one of the most widely used forms of packaging. According to their structure, they can be divided into three main categories: folding paper boxes, fixed paper boxes, and corrugated paper boxes. Among them, folding paper boxes can be stacked flat for storage, have low transportation costs, and are the most commonly used. Paper boxes are lightweight and inexpensive, have strong printing adaptability, and can achieve brand display and information transmission through exquisite printing. At the same time, they are recyclable and biodegradable, with significant environmental advantages.

[0003] The existing carton splitting device mainly consists of a front conveying mechanism, a detection mechanism, a cutting mechanism, and a rear conveying mechanism arranged in sequence. During operation, the continuous cardboard to be split is conveyed to the detection station by the front conveying mechanism. The detection mechanism collects the length information of the cardboard and performs calculations to generate a corresponding cutting control signal, which is then transmitted to the cutting mechanism. Finally, the cutting mechanism performs a single cutting action to separate a single carton.

[0004] This technical solution has obvious shortcomings: on the one hand, the control architecture that separates detection and cutting requires a complete closed loop of signal acquisition, calculation, transmission and execution, making the system control logic complex; on the other hand, the detection mechanism is susceptible to factors such as printing deviation on the cardboard surface, transmission jitter, and light interference, which can cause length detection errors, leading to cutting position deviations, defective products, and affecting the product qualification rate. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides a single paper box splitting device for paper box production.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a single paper box cutting device for paper box production, comprising a frame, a plate fixedly connected to the surface of the frame, a feeding plate fixedly connected to the plate, and a cutting device provided on the frame. The cutting device includes a cutting mechanism, which includes two guide frames mounted on the frame, a slide slidably connected to the guide frames, and a blade mounted on the slide. The cutting device also includes a length-fixing mechanism for fixing the length of the paperboard, a conveying mechanism for conveying the paperboard, and a control mechanism. The control mechanism controls the operation of the blade and the conveying mechanism, and controls the length-fixing mechanism to fix the length of the paperboard before the blade cuts.

[0007] By adopting the above technical solution, during the segmentation process, the control mechanism can simultaneously control the cutting mechanism, the length-fixing mechanism, and the conveying mechanism. The conveying mechanism transports the cardboard. Before the blade descends and contacts the cardboard for segmentation, the control mechanism controls the length-fixing mechanism to push the cardboard for length-fixing. Then, the blade cuts the cardboard, and the cut cardboard is pushed onto the unloading plate by the subsequent cardboard for unloading. This eliminates the traditional control architecture of detecting before cutting in segmentation devices, eliminating the need for complex control logic. The control mechanism achieves mechanical linkage-based length segmentation, ensuring segmentation accuracy and reducing the generation of defective products with unacceptable dimensions.

[0008] Furthermore, the surface of the plate is provided with a groove, and the cutting mechanism also includes two slide rods that penetrate the plate and are slidably connected to the plate, a top plate fixed to the upper end of the slide rod and slidably engaged with the groove, and a return spring sleeved on the slide rod and fixed at both ends between the slide rod and the inner wall of the plate.

[0009] By adopting the above technical solution, during the cutting process, the blade first contacts the cardboard, then pushes the cardboard to press against the top plate. The top plate moves downward with the sliding rod, and the return spring is stressed. After the blade moves to the appropriate position, it can perform the cutting operation with the top plate. After the blade returns to its original position, the return spring drives the top plate to return to its original position, reducing the phenomenon of cardboard getting stuck in the groove and affecting the conveying.

[0010] Furthermore, the length-fixing mechanism includes two slide rails fixed on the frame, a slide table slidably connected to the slide rails, two guide rods passing through the slide table and slidably connected to the slide table, and a push plate fixed to one end of the guide rods. The length-fixing mechanism also includes an adjustment component for adjusting the position of the push plate.

[0011] By adopting the above technical solution, during use, the control mechanism can control the slide table to move linearly on the slide rail, the slide table can drive the push plate to move, the push plate can push the cardboard to move, and the adjustment component can adjust the position of the push plate to achieve fixed length of the cardboard. At the same time, during the cardboard conveying process, the push plate can intercept the cardboard.

[0012] Furthermore, the adjustment assembly includes a screw rotatably connected to the push plate and threadedly connected to the slide, and a scale bar set on two guide rods.

[0013] By adopting the above technical solution, during adjustment, the screw can be rotated, and the screw can work with the guide rod to drive the push plate to move. The scale bar can be used to improve the adjustment accuracy.

[0014] Furthermore, the conveying mechanism includes multiple conveying rollers rotatably connected within the frame, multiple sprockets respectively fixedly sleeved on the corresponding conveying rollers, and chains mounted on the sprockets.

[0015] By adopting the above technical solution, during the conveying process, the control mechanism can drive one of the conveying rollers to rotate. When the conveying roller rotates, it can drive the sprocket to rotate. The sprocket, together with the chain, can drive multiple conveying rollers to rotate synchronously, thereby realizing the conveying operation.

[0016] Furthermore, the control mechanism includes a gear reducer installed below the frame, a drive motor installed below the frame with its output end fixedly connected to the input end of the gear reducer, a drive gear fixedly sleeved on the output end of the gear reducer, two hollow seats fixed on the lower surface of the frame, a shaft rotatably connected between the two hollow seats, two discs fixedly sleeved on the shafts, a gear ring fixedly sleeved on the discs and meshing with the drive gear, a first protrusion fixed on the disc, two second protrusions fixed on both sides of the slide, and rocker arms rotatably connected to the first and second protrusions respectively. The surface of the frame is provided with two sets of sliding grooves. The control mechanism also includes a main arm fixed on the first protrusion, a control plate fixed on the main arm, two guide rails fixed on the control plate and slidably connected to the sliding grooves, and a third protrusion fixed on both sides of the slide. The surface of the control plate is provided with interconnected oblique holes and straight holes. The third protrusion slides in cooperation with the inner walls of the oblique holes and straight holes. The control mechanism also includes a transmission component for controlling the rotation of one of the conveying rollers.

[0017] By adopting the above technical solution, the power output of the drive motor is reduced and amplified by the gear reducer, which drives the drive gear to rotate. The drive gear drives the disc and shaft to rotate synchronously around the hollow seat through meshing with the gear ring. During the rotation of the disc, the first protrusion on it, through the cooperation of the rocker arm and the second protrusion, drives the slide to move up and down along the guide frame, thereby realizing the cutting and resetting action of the blade. At the same time, the first protrusion drives the main arm and the control board to move synchronously, so that the control board moves horizontally back and forth along the slide groove on the surface of the frame through the guide rail. Before the blade moves down to contact the cardboard and perform the cutting action, the oblique hole on the surface of the control board slides with the third protrusion, pushing the slide of the fixed length mechanism forward to complete the precise fixed length positioning of the cardboard. When the blade contacts the cardboard and begins to cut, the third protrusion just enters the straight hole of the control board. At this time, the fixed length slide remains stationary to ensure that the position of the cardboard does not shift during the cutting process. At the same time, the drive motor drives the conveying roller of the conveying mechanism to rotate through the transmission component to realize the continuous conveying of the cardboard.

[0018] Furthermore, the transmission assembly includes a first synchronous pulley fixedly sleeved on the output end of the drive motor, a second synchronous pulley installed on one end of one of the conveying rollers, and a synchronous belt installed on the first and second synchronous pulleys.

[0019] By adopting the above technical solution, during the transmission process, the drive motor drives the first synchronous pulley to rotate, and the first synchronous pulley, together with the synchronous belt, can drive the second synchronous pulley and one of the conveyor rollers to rotate, thereby realizing the transmission operation. In addition, a motor can be installed separately to drive the conveyor rollers as needed.

[0020] Furthermore, the surface of the frame is also provided with a limiting device, which includes two limiting plates located above the conveying rollers, two sliding sleeves fixed to one side of the limiting plates, two slide rails fixed to the frame and slidingly engaged with the sliding sleeves, and an electric telescopic rod installed on the frame and whose output end is fixedly connected to the limiting plates.

[0021] By adopting the above technical solution, during use, the electric telescopic rod can drive the limiting plate to move, the sliding sleeve can move along the second slide rail, and the two limiting plates can limit the cardboard, ensuring the stability of the push plate when pushing the cardboard.

[0022] Furthermore, the limiting device also includes multiple limiting wheels that are rotatably connected to one side surface of the limiting plate.

[0023] By adopting the above technical solution, the limiting wheel and the conveying roller can limit the upper and lower positions of the cardboard, thereby effectively reducing the cardboard jumping phenomenon and improving the stability effect.

[0024] Furthermore, the chemical element composition of the blade body, by mass percentage, is as follows: C 2.0–2.2%, Cr 0.6–0.8%, Ni 1.6–2.0%, Mo 0.6–0.8%, Ce 0.3–1.5%, N 0.00069–0.014%, P ≤0.0094%, S ≤0.018%, W 28.4–33.5%, with the balance being Fe and unavoidable impurities.

[0025] In summary, the present invention has the following beneficial effects: 1. In this application, the cutting mechanism, the length-fixing mechanism, and the conveying mechanism can be controlled synchronously through the control mechanism. The conveying mechanism realizes the conveying operation of the cardboard. Before the blade body descends and contacts the cardboard to cut, the control mechanism can control the length-fixing mechanism to push the cardboard to perform a length-fixing operation. Then the blade body cuts. The coordinated operation of the cutting, length-fixing, and conveying mechanisms is realized through a single power source. There is no need for complex logic control, which reduces the detection error caused by factors such as printing deviation, transmission jitter, and light interference. The cutting position accuracy is stable and reliable, which greatly reduces the generation of defective products with unqualified dimensions. 2. In this application, during cutting, the top plate sinks synchronously with the blade to form a rigid support, ensuring that the cut surface of the cardboard is flat; after cutting, the reset spring drives the top plate to automatically reset, effectively reducing the impact of the cardboard getting stuck in the groove on subsequent conveying; 3. In this application, the guide rod and push plate can be moved and adjusted by the scale bar and screw to adapt to the fixed length operation when cutting paper boxes of different lengths and specifications, thereby improving the overall range of use.

[0026] 4. In this application, the electric telescopic rod can drive the limiting plate to move. The two limiting plates can intercept and limit the two sides of the cardboard. At the same time, the limiting wheel and the conveying roller can clamp the cardboard from top to bottom, reducing the phenomenon of cardboard jumping. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Another perspective structural diagram; Figure 4 yes Figure 1 A schematic diagram of the structure viewed from below; Figure 5 yes Figure 4 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram illustrating the connection structure between the slide bar and the plate in an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the connection structure between the main arm and the control board in an embodiment of the present invention; Figure 8 This is a schematic diagram illustrating the connection structure between the protruding rod three and the slide table in an embodiment of the present invention.

[0028] In the diagram: 1. Frame; 2. Plate; 3. Cutting device; 31. Cutting mechanism; 311. Guide frame; 312. Slide; 313. Blade body; 314. Slide rod; 315. Top plate; 316. Return spring; 32. Length fixing mechanism; 321. Slide rail one; 322. Slide table; 323. Guide rod; 324. Push plate; 325. Screw; 326. Scale bar; 33. Conveying mechanism; 331. Conveying roller; 332. Sprocket; 333. Chain; 34. Control mechanism; 341. Gear reducer; 342. Drive motor; 343. Main... 344. Drive gear; 345. Hollow seat; 346. Shaft; 347. Disc; 348. Gear ring; 349. Protruding rod one; 3410. Protruding rod two; 3411. Rocker arm; 3412. Main arm; 3413. Guide rail; 3414. Control board; 3415. Protruding rod three; 3416. Synchronous pulley one; 3417. Synchronous pulley two; 3418. Synchronous belt; 4. Groove; 5. Inclined hole; 6. Straight hole; 7. Slide groove; 8. Limiting device; 81. Limiting plate; 82. Sliding sleeve; 83. Slide rail two; 84. Electric telescopic rod; 85. Limiting wheel; 9. Feeding plate. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-8As shown in the illustration, this application discloses a single paper box cutting device for paper box production, including a frame 1, a plate 2, a feeding plate 9, a cutting device 3, and a limiting device 8. The plate 2 is fixedly connected to the surface of the frame 1, and the feeding plate 9 is fixedly connected to the plate 2. The cutting device 3 is also provided on the frame 1. The cutting device 3 includes a cutting mechanism 31, a length-fixing mechanism 32, a conveying mechanism 33, and a control mechanism 34. The cutting mechanism 31 includes a guide frame 311, a slide 312, and a blade 313. Two guide frames 311 are provided, and the two guide frames 311 are mounted on the frame 1. The slide 312 is slidably connected to the guide frames 311, and the blade 313 is mounted on the slide 312. The control mechanism 34 can synchronously control the cutting mechanism 31, the length-fixing mechanism 32, and the conveying mechanism 33. The conveying mechanism 33 realizes the conveying operation of the cardboard. Before the blade 313 descends and contacts the cardboard for cutting, the control mechanism 34 can control the length-fixing mechanism 32 to push the cardboard and perform a length-fixing operation. Then the blade 313 cuts the cardboard. The cut cardboard is pushed onto the feeding plate 9 by the subsequent cardboard for feeding. This abandons the control architecture of the traditional cutting device that detects before cutting. There is no need for complex control logic. The mechanical linkage length-fixing is realized through the control mechanism 34, which ensures the accuracy of cutting and reduces the generation of defective products with unqualified dimensions.

[0031] The surface of the plate 2 has a groove 4. The cutting mechanism 31 also includes a slide rod 314, a top plate 315, and a return spring 316. Two slide rods 314 are provided, passing through the plate 2 and slidably connected to it. The top plate 315 is fixed to the upper end of the slide rod 314 and slidably engages with the groove 4. The return spring 316 is sleeved on the slide rod 314, with both ends fixed between the slide rod 314 and the inner wall of the plate 2. During the cutting process, the blade 313 first contacts the cardboard, then pushes the cardboard to press against the top plate 315. The top plate 315 moves downward in conjunction with the slide rod 314, and the return spring 316 is stressed. After the blade 313 moves to the appropriate position, it can perform a cutting operation on the cardboard in conjunction with the top plate 315. After the blade 313 returns to its original position, the return spring 316 drives the top plate 315 to return to its original position, reducing the phenomenon of cardboard getting stuck in the groove 4 and affecting the conveying process.

[0032] The length-fixing mechanism 32 is used to fix the length of the cardboard. The length-fixing mechanism 32 includes a slide rail 321, a slide table 322, guide rods 323, a push plate 324, and an adjustment assembly. Two slide rails 321 are provided, and both slide rails 321 are fixed to the frame 1. The slide table 322 is slidably connected to the slide rails 321, and two guide rods 323 are provided. The two guide rods 323 pass through the slide table 322 and are slidably connected to it. The push plate 324 is fixed to one end of the guide rods 323. During use, the control mechanism 34 can control the slide table 322 to move linearly on the slide rails 321. The slide table 322 can drive the push plate 324 to move, and the push plate 324 can push the cardboard to move. Simultaneously, the adjustment assembly can adjust the position of the push plate 324, thereby achieving length-fixing of the cardboard. During the cardboard conveying process, the push plate 324 can also intercept the cardboard.

[0033] The adjustment assembly is used to adjust the position of the push plate 324. The assembly includes a screw 325 and a scale bar 326. The screw 325 is rotatably connected to the push plate 324 and threadedly connected to the slide table 322. The scale bar 326 is mounted on two guide rods 323. During adjustment, the screw 325 can be rotated, which, in conjunction with the guide rods 323, moves the push plate 324. The scale bar 326 further enhances the adjustment accuracy.

[0034] The conveying mechanism 33 is used to convey cardboard. The conveying mechanism 33 includes conveying rollers 331, sprockets 332, and chains 333. Multiple conveying rollers 331 are rotatably connected within the frame 1. Multiple sprockets 332 are fixedly mounted on corresponding conveying rollers 331, and chains 333 are mounted on the sprockets 332. During conveying, the control mechanism 34 can drive one of the conveying rollers 331 to rotate. When the conveying roller 331 rotates, it drives the sprockets 332 to rotate. The sprockets 332, in conjunction with the chains 333, can drive multiple conveying rollers 331 to rotate synchronously, thereby achieving the conveying operation.

[0035] The control mechanism 34 controls the operation of the blade 313 and the conveying mechanism 33, and controls the length-fixing mechanism 32 to fix the length of the cardboard before the blade 313 cuts. The control mechanism 34 includes a gear reducer 341, a drive motor 342, a drive gear 343, a hollow seat 344, a shaft 345, a disc 346, a gear ring 347, a first convex rod 348, a second convex rod 349, and a rocker arm 3410. The gear reducer 341 is installed below the frame 1. The drive motor 342 is installed below the frame 1 and its output end is fixedly connected to the input end of the gear reducer 341. The drive gear 343 is fixedly sleeved on the output end of the gear reducer 341. There are two hollow seats 344, which are fixed to the lower surface of the frame 1. The shaft 345 is rotatably connected between the two hollow seats 344. There are two discs 346, which are fixedly sleeved on the shaft 345. A gear ring 347 is fixedly sleeved on the disc body 346 and meshes with the drive gear 343. A first protrusion 348 is fixed on the disc body 346. Two second protrusions 349 are provided, and the two second protrusions 349 are fixed on both sides of the slide 312. A rocker arm 3410 is rotatably connected to both the first protrusion 348 and the second protrusion 349. Two sets of sliding grooves 7 are provided on the surface of the frame 1. The control mechanism 34 also includes a main arm 3411, a control plate 3413, guide rails 3412, a third protrusion 3414, and a transmission assembly. The main arm 3411 is fixed on the first protrusion 348. The control plate 3413 is fixed on the main arm 3411. Two guide rails 3412 are provided. The two guide rails 3412 are fixed on the control plate 3413 and slidably connected to the sliding grooves 7. The third protrusion 3414 is fixed on both sides of the slide table 322. The surface of the control board 3413 has an interconnected oblique hole 5 and a straight hole 6, and the protruding rod 3414 slides in contact with the inner walls of the oblique hole 5 and the straight hole 6.The drive motor 342 outputs power, which is reduced and amplified by the gear reducer 341, and then drives the drive gear 343 to rotate. The drive gear 343, through meshing with the gear ring 347, drives the disc 346 and shaft 345 to rotate synchronously around the hollow seat 344. During the rotation of the disc 346, the first protrusion 348 on it, through the cooperation of the rocker arm 3410 and the second protrusion 349, drives the slide 312 to move up and down along the guide frame 311, thereby realizing the cutting and resetting action of the blade 313. At the same time, the first protrusion 348 drives the main arm 3411 and the control board 3413 to move synchronously, so that the control board 3413 moves along the guide rail 3412 along the machine. The slide groove 7 on the surface of the frame 1 moves horizontally back and forth; before the blade 313 moves down to contact the cardboard and perform the cutting action, the oblique hole 5 on the surface of the control plate 3413 slides and engages with the protruding rod 3414, pushing the slide table 322 of the length-fixing mechanism 32 forward to complete the precise length-fixing positioning of the cardboard; when the blade 313 contacts the cardboard and begins to cut, the protruding rod 3414 just enters the straight hole 6 of the control plate 3413, at which time the length-fixing slide table 322 remains stationary to ensure that the cardboard position does not shift during the cutting process; at the same time, the drive motor 342 drives the conveying roller 331 of the conveying mechanism 33 to rotate through the transmission component to realize the continuous conveying of the cardboard.

[0036] The transmission assembly controls the rotation of one of the conveyor rollers 331. The transmission assembly includes a first synchronous pulley 3415, a second synchronous pulley 3416, and a synchronous belt 3417. The first synchronous pulley 3415 is fixedly mounted on the output end of the drive motor 342. The second synchronous pulley 3416 is mounted on one end of one of the conveyor rollers 331. The synchronous belt 3417 is mounted on both the first synchronous pulley 3415 and the second synchronous pulley 3416. During transmission, the drive motor 342 drives the first synchronous pulley 3415 to rotate. The first synchronous pulley 3415, in conjunction with the synchronous belt 3417, drives the second synchronous pulley 3416 and one of the conveyor rollers 331 to rotate, thus achieving the transmission operation. Alternatively, a motor can be installed to drive the conveyor roller 331 independently, depending on requirements.

[0037] A limiting device 8 is installed on the surface of the frame 1. The limiting device 8 includes a limiting plate 81, a sliding sleeve 82, a second slide rail 83, and an electric telescopic rod 84. Two limiting plates 81 are provided, positioned above the conveyor roller 331. Two sliding sleeves 82 are provided, fixed to one side of the limiting plates 81. Two second slide rails 83 are provided, fixed to the frame 1 and slidably engaged with the sliding sleeves 82. The electric telescopic rod 84 is installed on the frame 1, and its output end is fixedly connected to the limiting plates 81. During use, the electric telescopic rod 84 can move the limiting plates 81, and the sliding sleeves 82 can move along the second slide rail 83. The two limiting plates 81 can limit the movement of the cardboard, ensuring stability when the pusher plate 324 pushes the cardboard.

[0038] The limiting device 8 also includes multiple limiting wheels 85, which are rotatably connected to one side surface of the limiting plate 81. The limiting wheels 85, in conjunction with the conveyor roller 331, can limit the upper and lower movement of the cardboard, thereby effectively reducing cardboard bounce and improving stability.

[0039] The chemical element composition of the blade body 313 by mass percentage is as follows: C 2.0-2.2%, Cr 0.6-0.8%, Ni 1.6-2.0%, Mo 0.6-0.8%, Ce 0.3-1.5%, N 0.00069-0.014%, P≤0.0094%, S≤0.018%, W 28.4-33.5% or W and Ti 28.4-33.5%, with the balance being Fe and unavoidable impurities.

[0040] The operating principle of a single paper box cutting device for paper box production in this embodiment is as follows: The drive motor 342 is turned on, driving synchronous wheel 3415 to rotate. Synchronous wheel 3415, in conjunction with synchronous belt 3417, drives synchronous wheel 3416 and one of the conveyor rollers 331 to rotate, thereby conveying the paperboard. During conveying, the electric telescopic rod 84 can move the limiting plate 81, and the sliding sleeve 82 can move along the slide rail 83. The two limiting plates 81 can limit the paperboard, and the limiting wheel 85, in conjunction with the conveyor roller 331, can limit the paperboard vertically. After the paperboard moves to the appropriate position, the push plate 324 can intercept it. Simultaneously, the drive motor 342 outputs power, which, after being reduced and increased in torque by the gear reducer 341, drives the drive gear 343 to rotate. The drive gear 343, through meshing with the gear ring 347, drives the disc 346 and shaft 345 to rotate synchronously around the hollow seat 344. The disc 346 rotates... During the process, the first protrusion 348, through the cooperation of the rocker arm 3410 and the second protrusion 349, drives the slide 312 to reciprocate up and down along the guide frame 311, thereby realizing the cutting and resetting action of the blade 313; at the same time, the first protrusion 348 drives the main arm 3411 and the control board 3413 to move synchronously, so that the control board 3413 moves horizontally back and forth along the slide groove 7 on the surface of the frame 1 via the guide rail 3412; before the blade 313 descends and contacts the cardboard to perform the cutting action, the control board 3412... The oblique hole 5 on the surface of the 13 slides and engages with the protruding rod 3414, pushing the slide 322 of the length-fixing mechanism 32 to move forward. The push plate 324 pushes the cardboard to move and completes the precise length-fixing positioning of the cardboard. When the cutter body 313 contacts the cardboard and begins to cut, the protruding rod 3414 just enters the straight hole 6 of the control plate 3413. At this time, the length-fixing slide 322 remains stationary to ensure that the cardboard position does not shift during the cutting process. The cut cardboard is pushed onto the feeding plate 9 by the rear cardboard for feeding operation.

[0041] In this embodiment, the cardboard box is composed of a face paper layer, a PVC waterproof film layer, a corrugated cardboard layer, a polyethylene or other sponge-like foam material layer, and an inner paper layer, with each layer bonded together by an adhesive.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A single carton splitting device for carton production, comprising a frame (1), characterized in that: A plate (2) is fixedly connected to the surface of the frame (1), and a feeding plate (9) is fixedly connected to the plate (2). A cutting device (3) is also provided on the frame (1). The cutting device (3) includes a cutting mechanism (31). The cutting mechanism (31) includes two guide frames (311) installed on the frame (1), a slide (312) slidably connected to the guide frames (311), and a blade (313) installed on the slide (312). The cutting device (3) also includes a length-fixing mechanism (32) for fixing the length of the cardboard, a conveying mechanism (33) for conveying the cardboard, and a control mechanism (34). The control mechanism (34) is used to control the operation of the blade (313) and the conveying mechanism (33), and to control the length-fixing mechanism (32) to fix the length of the cardboard before the blade (313) cuts.

2. A single paper box cutting device for paper box production according to claim 1, characterized in that: The surface of the plate (2) is provided with a groove (4). The cutting mechanism (31) also includes two slide rods (314) that pass through the plate (2) and are slidably connected to the plate (2), a top plate (315) fixed to the upper end of the slide rod (314) and slidably engaged with the groove (4), and a return spring (316) sleeved on the slide rod (314) and whose two ends are respectively fixed between the slide rod (314) and the inner wall of the plate (2).

3. A single paper box cutting device for paper box production according to claim 1, characterized in that: The length-fixing mechanism (32) includes two slide rails (321) fixed on the frame (1), a slide table (322) slidably connected to the slide rails (321), two guide rods (323) passing through the slide table (322) and slidably connected to the slide table (322), and a push plate (324) fixed to one end of the guide rod (323). The length-fixing mechanism (32) also includes an adjustment component for adjusting the position of the push plate (324).

4. A single paper box cutting device for paper box production according to claim 3, characterized in that: The adjustment assembly includes a screw (325) rotatably connected to the push plate (324) and threadedly connected to the slide (322), and a scale bar (326) set on two guide rods (323).

5. A single paper box cutting device for paper box production according to claim 3, characterized in that: The conveying mechanism (33) includes multiple conveying rollers (331) rotatably connected in the frame (1), multiple sprockets (332) respectively fixedly sleeved on the corresponding conveying rollers (331), and chains (333) installed on the sprockets (332).

6. A single paper box cutting device for paper box production according to claim 5, characterized in that: The control mechanism (34) includes a gear reducer (341) installed below the frame (1), a drive motor (342) installed below the frame (1) and whose output end is fixedly connected to the input end of the gear reducer (341), a drive gear (343) fixedly sleeved on the output end of the gear reducer (341), two hollow seats (344) fixed on the lower surface of the frame (1), a shaft (345) rotatably connected between the two hollow seats (344), two discs (346) fixedly sleeved on the shaft (345), a gear ring (347) fixedly sleeved on the disc (346) and meshing with the drive gear (343), a first protrusion (348) fixed on the disc (346), two second protrusions (349) fixed on both sides of the slide (312), and protrusions respectively connected to the first protrusion. The frame (1) has two sets of sliding grooves (7) on its surface. The control mechanism (34) also includes a main arm (3411) fixed on the first protrusion (348), a control plate (3413) fixed on the main arm (3411), two guide rails (3412) fixed on the control plate (3413) and slidably connected to the sliding grooves (7), and a third protrusion (3414) fixed on both sides of the slide table (322). The surface of the control plate (3413) has an inclined hole (5) and a straight hole (6) that are interconnected. The third protrusion (3414) slides in cooperation with the inner wall of the inclined hole (5) and the straight hole (6). The control mechanism (34) also includes a transmission component for controlling the rotation of one of the conveying rollers (331).

7. A single paper box cutting device for paper box production according to claim 6, characterized in that: The transmission assembly includes a first synchronous pulley (3415) fixedly sleeved on the output end of the drive motor (342), a second synchronous pulley (3416) installed on one end of one of the conveying rollers (331), and a synchronous belt (3417) installed on the first synchronous pulley (3415) and the second synchronous pulley (3416).

8. A single paper box cutting device for paper box production according to claim 1, characterized in that: The surface of the frame (1) is also provided with a limiting device (8), which includes two limiting plates (81) located above the conveying roller (331), two sliding sleeves (82) fixed on one side of the limiting plate (81), two slide rails (83) fixed on the frame (1) and slidingly engaged with the sliding sleeves (82), and an electric telescopic rod (84) installed on the frame (1) and whose output end is fixedly connected to the limiting plate (81).

9. A single paper box cutting device for paper box production according to claim 8, characterized in that: The limiting device (8) also includes a plurality of limiting wheels (85) rotatably connected to one side surface of the limiting plate (81).

10. A single paper box cutting device for paper box production according to claim 1, characterized in that: The blade body (313) has the following chemical element composition by mass percentage: C 2.0-2.2%, Cr 0.6-0.8%, Ni 1.6-2.0%, Mo 0.6-0.8%, Ce 0.3-1.5%, N 0.00069-0.014%, P≤0.0094%, S≤0.018%, W 28.4-33.5%, with the balance being Fe and unavoidable impurities.

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