Carton transverse cutter structure

Abstract

The utility model discloses a carton transverse cutter structure which comprises a machine frame, an upper cutter roller and a lower cutter roller which are parallel to each other are arranged on the machine frame, a driving device for driving the upper cutter roller and the lower cutter roller to rotate is arranged on the machine frame, upper cutter parts distributed in the axial direction are arranged on the outer circumferential face of the upper cutter roller, and lower cutter parts distributed in the axial direction are arranged on the outer circumferential face of the lower cutter roller. A lower knife part matched with the upper knife part is arranged on the outer circumferential face of the lower knife roller, a base is arranged at the bottom of the machine frame, and the machine frame is connected to the base in a sliding mode so that the upper knife roller and the lower knife roller can synchronously move horizontally relative to the base. The device can continuously rotate to carry out shearing or indentation, and the base can relatively slide, so that the maintenance operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of carton machines, in particular to a carton transverse knife structure. Background Art

[0002] Cardboard boxes are the most widely used packaging products, often used as wrapping for goods or as protective outer layers. The crosscutting blade, the core structure of a cartoning machine, cuts cardboard into defined lengths. Typically, during the crosscutting process, the carton must stop below the crosscutting blade before it can descend and perform the cut. This type of crosscutting blade has very low efficiency and a limited functionality. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the above-mentioned technologies and is a carton transverse knife structure designed.

[0004] The utility model provides a carton transverse knife structure, comprising a frame, wherein an upper knife roller and a lower knife roller parallel to each other are provided on the frame, a driving device for driving the upper knife roller and the lower knife roller to rotate is provided on the frame, an upper knife portion distributed along the axial direction is provided on the outer circumference of the upper knife roller, and a lower knife portion cooperating with the upper knife portion is provided on the outer circumference of the lower knife roller; in a working state, as the upper knife roller and the lower knife roller rotate synchronously, the upper knife portion and the lower knife portion are gradually engaged from one end to the other end, thereby realizing cutting or creasing.

[0005] Preferably, a base is provided at the bottom of the frame, and the frame is slidably connected to the base, so that the upper knife roller and the lower knife roller can be translated synchronously relative to the base.

[0006] Preferably, a punching assembly is installed on the frame, and the punching assembly includes a first driving shaft, which is driven to rotate by a driving mechanism, and a first roller is sleeved on the first driving shaft. The frame is also provided with a second driving shaft corresponding to the first driving shaft, and a second roller is sleeved on the second driving shaft. The second roller is arranged corresponding to the first roller, and a punching knife is provided on the outer periphery of the second roller.

[0007] Further optimized, the frame includes a base frame and a support seat located on the base frame, the two ends of the upper knife roller and the lower knife roller are rotatably connected to the corresponding support seats, the base is provided with a slide rail, and the base frame is provided with a slider that slides with the slide rail.

[0008] Further optimization, the base and the underframe are both frame structures formed by profiles, I-beams or pipes.

[0009] Further optimized, the slide rail extends horizontally in the front-back or left-right direction relative to the frame.

[0010] Further optimization is carried out in that mounting grooves are provided on the outer circumferential surfaces of the upper knife roller and the lower knife roller, and the upper knife part and the lower knife part are respectively installed in the mounting grooves, and the mounting grooves include two mounting surfaces extending along the length direction of the knife roller and parallel to each other, and the two mounting surfaces form a stepped shape due to different depths, and the bottom of the upper knife part and the lower knife part is formed with a stepped bottom surface that forms a limit with the stepped mounting surface.

[0011] Further optimization is carried out, the upper knife part and the lower knife part both include a knife seat and a blade, the top and bottom of the knife seat both form stepped surfaces, the stepped surface at the bottom of the knife seat forms a limit with the installation groove, and the stepped surface at the top of the knife seat is used to install and limit the blade.

[0012] Further optimized, the blade is a cutting knife or a creasing knife.

[0013] Preferably, the driving device includes a driving motor and gears, the upper knife roller and the lower knife roller are connected in synchronous rotation through gears that cooperate with each other, and the output shaft of the driving motor is connected to the gear on the lower knife roller.

[0014] The technical effect of the utility model is that the frame of the horizontal knife structure and the base located at the bottom thereof are slidingly matched, so that the horizontal knife structure can slide forward and backward along the base as the bracket moves, so that the horizontal knife structure can leave a certain distance with the front and rear process structures, which is convenient for the maintenance and operation of the horizontal knife structure; the knife part of the horizontal knife structure includes an upper knife part and a lower knife part, and the upper knife part and the lower knife part are both made by installing a blade with a spiral path on the knife roller. The blade can be a cutting knife or a creasing knife to meet the needs of different working conditions. Shearing or creasing is achieved by synchronous rotation of the upper and lower knife rollers. This design of the horizontal knife does not require intermittent stopping and can continuously rotate for shearing or creasing, and the working efficiency is very high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an axial view of the overall structure of the utility model;

[0016] Figure 2 This is a top view of the overall structure of the utility model;

[0017] Figure 3 This is a front view of the overall structure of the utility model;

[0018] Figure 4 This is a cross-sectional view of the cooperation between the upper knife roller and the lower knife roller in the utility model (when the blade is a cutting knife);

[0019] Figure 5 This is a cross-sectional view of the cooperation between the upper knife roller and the lower knife roller in the utility model (when the blade is a creasing knife);

[0020] Figure 6 This is an axial view of the overall structure of the punching assembly in the utility model;

[0021] Figure 7 This is a front view of the overall structure of the punching assembly in the utility model;

[0022] Figure 8 This is a structural diagram of the second roller in the punching assembly.

[0023] In the figure: 1. Frame; 1-1. Base frame; 1-2. Support seat; 2. Upper knife roller; 3. Lower knife roller; 4. Upper knife part; 5. Lower knife part; 6. Base; 7. Slide rail; 8. Slider; 9. Mounting slot; 9-1. Mounting surface; 10. Knife seat; 11. Blade; 12. Driving device; 13. First driving shaft; 14. First roller; 15. Second driving shaft; 16. Second roller; 161. First sub-roller body; 162. Second sub-roller body; 17. Punching knife; 171. Base body; 172. Grooving knife; 18. Motor; 19. Pulley; 20. Gear; 21. Rubber pad; 22. Axial mounting port. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0025] The utility model provides a carton transverse knife structure, including a frame 1, on which an upper knife roller 2 and a lower knife roller 3 are distributed up and down and parallel to each other are provided, the upper knife roller 2 and the lower knife roller 3 are rotatably connected to the frame 1, and a driving device 12 for driving the upper knife roller 2 and the lower knife roller 3 to rotate is provided on the frame 1. In this embodiment, the driving device 12 includes a driving motor and a gear, the upper knife roller 2 and the lower knife roller 3 are meshed and connected by gears that cooperate with each other, and the output shaft of the driving motor and the gear on the lower knife roller 3 form a transmission connection through a belt transmission structure, that is, the lower knife roller 3 acts as an active roller to drive the upper knife roller 2 to rotate.

[0026] An upper knife portion 4 extending along the axial direction of the upper knife roller 2 is provided on the outer circumference of the upper knife roller 2 , and a lower knife portion 5 adapted to the upper knife portion 4 is provided on the outer circumference of the lower knife roller 3 .

[0027] An installation groove 9 is provided on the outer circumferential surface of the upper knife roller 2 and the lower knife roller 3, and the upper knife part 4 and the lower knife part 5 are respectively installed in the installation groove 9. In this embodiment, the installation groove 9 includes two installation surfaces 9-1 that extend spirally along the length direction of the knife roller and are parallel to each other. The spiral lead is relatively long, and the two installation surfaces 9-1 form a stepped surface due to different depths. The bottom of the upper knife part 4 and the lower knife part 5 is also formed with a stepped surface. When the knife part is installed, the stepped surface at the bottom of the knife part forms a limit with the stepped surface in the installation groove 9, and then is fixed by fasteners.

[0028] Furthermore, the upper knife part 4 and the lower knife part 5 both include a knife seat 10 and a blade 11. The top and bottom of the knife seat 10 are formed with stepped surfaces. The stepped surface at the bottom of the knife seat 10 forms a limit with the mounting groove 9. The stepped surface at the top of the knife seat 10 is used to install and limit the blade 11, and then they are fixedly connected by fasteners. The blade 11 can be a cutting blade for cutting or an indentation blade for indentation. It can be replaced according to different needs to achieve the same structure for horizontal cutting and indentation.

[0029] It should be noted that the upper blade portion 4 and the lower blade portion 5 extend along the length direction of the knife roller, and the length dimension is equal to or less than the length dimension of the knife roller. The upper blade portion 4 forms a left or right spiral line, and the lower blade portion 5 forms a right or left spiral line, so that at the moment of cutting or creasing, the upper blade portion 4 and the lower blade portion 5 engage to form a joining effect. At the moment of joining, the upper blade portion 4 and the lower blade portion 5 run at the same speed as the cardboard at the same time, and gradually engage from one end to the other to form a cutting or creasing effect. The upper blade portion 4 and the lower blade portion 5 have synchronous action under the action of the driving device 12, so that the upper blade portion 4 and the lower blade portion 5 are tangent at the exact time according to the horizontal length requirement of the cardboard, and the knife speed is synchronized with the paper speed at the moment of cutting or creasing. Therefore, even during the work process, the knife roller does not need to stop, and the cut notches or indentations are all linear. Since the knife roller does not need to stop rotating during the work process, the work efficiency is higher.

[0030] When the blade 11 is a cutting blade, as Figure 4 As shown, a scissor-like blade is formed between the upper blade portion 4 and the blade 11 on the lower blade portion 5; when the blade 11 is an indentation blade, as shown in FIG. Figure 5 As shown, upper and lower concave-convex cutting edges are formed between the blades 11 on the upper blade portion 4 and the lower blade portion 5.

[0031] It should be noted that, when the blade 11 is an indentation blade, in addition to the Figure 5 The concave-convex type shown can also form a convex arc surface between the opposing surfaces of the blades 11 on the upper knife part 4 and the lower knife part 5; or the opposing surfaces of the blades 11 on the upper knife part 4 and the lower knife part 5 can be a flat surface, and is not limited to the above-mentioned indentation structure.

[0032] The frame 1 includes a base 1-1 and a support base 1-2 located on the base 1-1. A base 6 is provided under the base 1-1. Both ends of the upper knife roller 2 and the lower knife roller 3 are rotatably connected to the corresponding support base 1-2. The base 6 is provided with slide rails 7 on both sides of the base 1-1. A slider 8 is provided at the bottom of the base 1-1 to slide with the slide rail 7. A power device such as a motor is provided on the base 6 to drive the base 1-1 to slide along the slide rail 7 to realize the sliding connection of the base 6 frame 1 on the base 6, so that the frame 1 can move relative to the base 6, and the slide rail 7 extends horizontally in the front and back or left and right directions relative to the frame 1, so that the frame 1 drives the upper knife roller 2 and the lower knife roller 3 to move synchronously in the front and back directions or left and right directions relative to the base 6. The carton machine is usually provided with a punching mechanism in front of the transverse knife structure, and the transverse knife structure slides through the base 6 to approach or move away from the punching mechanism. When the transverse knife structure or the punching mechanism needs maintenance, it only needs to move the transverse knife structure as a whole away from the punching mechanism, which is very convenient.

[0033] In addition, the slide rail 7 can also extend horizontally and be set parallel to the axial direction of the knife roller, so that the upper knife roller 2 and the lower knife roller 3 can synchronously make reciprocating translations parallel to their own axial directions, which is different from the above-mentioned vertical movement, and the horizontal knife structure can be moved left and right relative to the base 6, thereby realizing the horizontal knife structure approaching or moving away from the punching mechanism.

[0034] Furthermore, the base 6 and the underframe 1 - 1 are both frame structures formed by fixed connection of profiles, I-beams or pipes, so that the base 6 and the underframe 1 - 1 not only have greater bearing capacity, but also are more stable during long-term operation.

[0035] It should also be noted that the support seat 1-2 includes a bearing platform and support legs located at the bottom of the bearing platform. The support legs are evenly distributed on the four corners and the bottom surface of the bearing platform. The upper and lower knife rollers and the drive device 12 are all located on the bearing platform. The support legs can play a certain shock-absorbing role, so that the bearing platform not only has a strong bearing capacity, but also is more stable and lighter.

[0036] A punching assembly is installed on the frame 1. The punching assembly and the cross-cutting knife structure are arranged side by side. The punching assembly includes a first drive shaft 13. A first roller 14 is sleeved on the first drive shaft 13. The first roller 14 is a rubber roller or has a rubber pad 21 on the periphery. The frame is located above the first drive shaft 13 and is provided with a second drive shaft 15. The first drive shaft 13 and the second drive shaft 15 are parallel to each other. The first drive shaft 13 and the second drive shaft 15 are rotatably connected to the frame. The first drive shaft 13 and the second drive shaft 15 are connected through a transmission mechanism. The transmission mechanism includes a motor 18, two pulleys 19, a belt and two gears. Wheel 20, the two gears 20 are respectively mounted on the same end of the first drive shaft 13 and the second drive shaft 15, the two gears 20 are meshed with each other, and the two pulleys 19 are respectively mounted on the first drive shaft 13 and the drive mechanism, that is, the output end of the motor 18. The two pulleys 19 are connected by a belt, that is, the drive mechanism drives the first drive shaft 13 to rotate, and the first drive shaft 13 drives the second drive shaft 15 to rotate through the gear 20 belt transmission structure, that is, the first drive shaft 13 serves as the active shaft, and the second drive shaft 15 serves as the driven shaft, so that the first drive shaft drives the second drive shaft to rotate synchronously.

[0037] The second driving shaft 15 is provided with a second roller 16, which is provided corresponding to the first roller 14. Usually, the first roller 14 and the second roller 16 are located at the center of the first driving shaft 13 and the second driving shaft 15 respectively.

[0038] A shaft hole for the second driving shaft 15 to pass through is defined in the center of the second roller 16 , and the second roller 16 is sleeved on the second driving shaft 15 through the shaft hole.

[0039] The second roller 16 is divided into two half roller bodies along the radial dividing line, namely the first half roller body 161 and the second half roller body 162, and the axial hole is also divided into two halves accordingly. The first half roller body 161 and the second half roller body 162 can be combined into a complete second roller 16. After the first half roller body 161 and the second half roller body 162 are assembled, they are embraced on the second drive shaft 15. This design facilitates the installation of the second roller body on the second drive shaft 15 and also facilitates the adjustment of the position of the second roller 16 on the second drive shaft 15. A punching knife 17 is provided on the outer circumference of the first half roller body 161 and / or the second half roller body 162.

[0040] The first and second roller bodies 161 and 162 are provided with mounting holes penetrating the roller bodies near both radial ends. There are two mounting holes symmetrically distributed along the axial direction. When the first and second roller bodies 161 and 162 are assembled, the mounting holes on the first and second roller bodies 161 and 162 are aligned and locked and fixed by fasteners, so that the first and second roller bodies 161 and 162 are detachably sleeved on the second drive shaft 15.

[0041] The rubber pad 21 is a cylindrical structure and is axially sleeved on the outer periphery of the first roller 14. The rubber pad 21 has a certain thickness and is used to protect the first roller 14. When the first roller 14 and the second roller 16 rotate at the same time, the punching knife 17 on the second roller 16 directly contacts the rubber pad 21 on the surface of the second roller 16 during the punching process, avoiding damage to the surface of the second roller 16 and the punching knife 17 at the same time. At the same time, it plays a buffering role for the punching knife 17, avoiding the formation of adhesion of the punched part of the cardboard and incomplete punching.

[0042] In addition, the rubber pad 21 is provided with an axial mounting opening 22, that is, the cylindrical rubber pad 21 can be installed or removed on the first roller 14 from the side, and the mounting opening is a square wave dividing line, so that the rubber pad 21 will not be easily offset or deformed due to extrusion or friction during rotation. In this embodiment, the rubber pad 21 is used, and the first roller 14 can also use a rubber roller, and the working principle is the same as the rubber pad 21.

[0043] The punching knife 17 includes a seat body 171 and a groove knife 172. An axial groove body is provided on the outer peripheral surface of the first sub-roller body 161 and / or the second sub-roller body 162. The seat body 171 is installed in the axial groove body. A mounting hole is provided on the seat body 171, and a corresponding mounting hole is provided in the axial groove body. Fasteners are installed in the mounting hole so that the seat body 171 is fixed in the axial groove body and the groove knife 172 is fixed to the outside of the seat body 171. In this embodiment, the groove knife 172 is a blade in the shape of a waist-shaped hole, and the long axis of the waist-shaped hole groove knife 172 is consistent with the axial direction of the roller.

[0044] It is further preferred that the axial groove passes through the two end faces of the first split roller body 161 and the second split roller body 162, that is, the seat body 171 can slide in from the end face direction of the split roller body to complete the installation. After the seat body 171 is installed, there is no restriction on the direction of the seat body 171 toward the two end faces, and the other two directions of the seat body 171 form restrictions on the seat body 171, so that the seat body 171 forms an assembly allowance, thereby preventing the seat body 171 from forming a position offset buffer during rotation.

[0045] The axial length of the first roller 14 is smaller than that of the second roller 16 , which prevents the groove cutter 172 from leaving the range of the rubber pad 21 and facilitates the conveyance of the cardboard.

[0046] It should be noted that the orthographic projection of the punching knife 17 mounted on the second roller 16 on the first roller 14 is located within the edge line of the first roller 14 , so that the punching knife 17 can be completely mounted on the second roller 16 .

[0047] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. Carton transverse knife structure, characterized in that, The invention comprises a frame (1), wherein the frame (1) is provided with an upper knife roller (2) and a lower knife roller (3) which are parallel to each other, and the frame (1) is provided with a driving device (12) for driving the upper knife roller (2) and the lower knife roller (3) to rotate, an upper knife portion (4) distributed along the axial direction is provided on the outer circumference of the upper knife roller (2), and a lower knife portion (5) cooperating with the upper knife portion (4) is provided on the outer circumference of the lower knife roller (3); in a working state, as the upper knife roller (2) and the lower knife roller (3) rotate synchronously, the upper knife portion (4) and the lower knife portion (5) are gradually engaged from one end to the other end, thereby realizing cutting or creasing.

2. The carton transverse knife structure according to claim 1, characterized in that: A base (6) is provided at the bottom of the frame (1), and the frame (1) is slidably connected to the base (6), so that the upper knife roller (2) and the lower knife roller (3) can be synchronously translated relative to the base (6).

3. The carton transverse knife structure according to claim 1, characterized in that: A punching assembly is installed on the frame (1), and the punching assembly includes a first drive shaft (13), the first drive shaft (13) is driven to rotate by a drive mechanism, a first roller (14) is sleeved on the first drive shaft (13), and a second drive shaft (15) corresponding to the first drive shaft (13) is further provided on the frame (1), a second roller (16) is sleeved on the second drive shaft (15), the second roller (16) is arranged corresponding to the first roller (14), and a punching knife (17) is provided on the outer periphery of the second roller (16).

4. The carton transverse knife structure according to claim 2, characterized in that: The frame (1) comprises a base frame (1-1) and a support seat (1-2) located on the base frame (1-1); both ends of the upper knife roller (2) and the lower knife roller (3) are rotatably connected to the corresponding support seats (1-2); a slide rail (7) is provided on the base (6); and a slider (8) is provided on the base frame (1-1) that slidably cooperates with the slide rail (7).

5. The carton transverse knife structure according to claim 4, characterized in that: The base (6) and the base frame (1-1) are both frame structures formed by profiles, I-beams or pipes.

6. The carton transverse knife structure according to claim 4, characterized in that: The slide rail (7) extends horizontally in a front-back or left-right direction relative to the frame (1).

7. The carton transverse knife structure according to claim 4, characterized in that: The outer circumferential surfaces of the upper knife roller (2) and the lower knife roller (3) are provided with mounting grooves (9), and the upper knife portion (4) and the lower knife portion (5) are respectively mounted in the mounting grooves (9). The mounting grooves (9) include two mounting surfaces (9-1) extending along the length direction of the knife roller and parallel to each other. The two mounting surfaces (9-1) are stepped due to different depths. The bottoms of the upper knife portion (4) and the lower knife portion (5) are formed with stepped bottom surfaces that form a limit with the stepped mounting surfaces (9-1).

8. The carton transverse knife structure according to claim 7, characterized in that: The upper blade portion (4) and the lower blade portion (5) both include a blade seat (10) and a blade (11); the top and bottom of the blade seat (10) both form stepped surfaces; the stepped surface at the bottom of the blade seat (10) forms a limit with the mounting groove (9); the stepped surface at the top of the blade seat (10) is used to mount and limit the blade (11).

9. The carton transverse knife structure according to claim 8, characterized in that: The blade (11) is a cutting knife or a creasing knife.

10. The carton transverse knife structure according to claim 1, characterized in that: The driving device (12) comprises a driving motor (18) and a gear (20); the upper knife roller (2) and the lower knife roller (3) are connected in synchronous rotation via the gears (20) that cooperate with each other; the output shaft of the driving motor (18) is connected in transmission with the gear (20) on the lower knife roller (3).

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