Knife roll assembly

Abstract

The utility model discloses a knife roll assembly which comprises a support, a knife roll is arranged on the support, the knife roll comprises a roll body capable of rotating along the axis of the knife roll, at least one knife body is arranged in the circumferential direction of the roll body, and the knife body is movably installed on the roll body. The cutter bodies are driven by a driving mechanism to perform circumferential displacement along the surface of the roller body, so that the distance between the cutter bodies in the circumferential direction can be adjusted; the support is further provided with a driving structure, and the driving structure drives the cutter bodies to move in the axial direction of the roller body so that the distance between the cutter bodies in the axial direction can be adjusted. The distance between the cutter bodies can be automatically adjusted.

Description

Technical Field

[0001] This utility model relates to the field of carton forming machine technology, and in particular to a cutter roller assembly. Background Technology

[0002] Cardboard boxes are the most widely used packaging products, typically used as wrapping materials for goods or as protective outer layers for items. During production, cardboard boxes are formed by bending cardboard. To ensure a completely sealed box, several grooves and creases are created at the top and bottom of the cardboard. This facilitates folding the cardboard to close the box. The structures for grooving and crease-making the cardboard are grooving and crease-making components, usually consisting of a cutter shaft and rollers. The cutter shaft has grooving or crease-making blades. The cardboard is grooved or creased by the rolling of the cutter shaft. Since multiple parallel grooves or creases exist on the same cardboard, the distance between the blades on the same cutter shaft needs to be adjusted. This requires manual loading and unloading of the blades, which is inconvenient and inefficient. Utility Model Content

[0003] The purpose of this utility model is to design a cutter roller assembly to overcome the shortcomings of the above-mentioned technology.

[0004] This utility model designs a cutter roller assembly, including a bracket, on which a cutter roller is mounted. The cutter roller includes a roller body that can rotate along its own axis. At least one cutter body is arranged in the circumferential direction of the roller body. The cutter body is movably mounted on the roller body. The cutter body is driven by a driving mechanism to move circumferentially along the surface of the roller body, so as to realize the adjustable distance between the cutter bodies in the circumferential direction.

[0005] The bracket is also equipped with a drive structure, which drives the cutter body to move axially along the roller body so that the distance between the cutter bodies along the axial direction can be adjusted.

[0006] Preferably, a kit is provided between the roller body and the cutter body, the kit being disposed on the roller body and rotating with the roller body.

[0007] Further optimization involves the driving mechanism including a driving device and a positioning hole. The driving device has a movable end that can be raised and lowered. The positioning hole is opened on the surface of the blade body. The movable end of the driving device extends into the positioning hole to form a docking. At this time, the blade body moves circumferentially relative to the roller body by rotating the roller body.

[0008] Further optimization involves extending the positioning hole into the kit, with a fastener screwed into the positioning hole. The blade body is connected to the kit via the fastener. The movable end of the drive device extends into the positioning hole and engages with the fastener. The movable end of the drive device tightens or loosens the fastener by rotating in both directions, thereby locking or unlocking the blade body onto the kit.

[0009] Further optimization includes a drive mechanism comprising a gear ring, a rotating shaft, a gear, and a drive device. The cutter body is connected to the gear ring, which is movably sleeved on the outer periphery of the kit. The rotating shaft is axially arranged along the roller body and rotatably connected to the kit. The gear is connected to the rotating shaft and rotates synchronously with the rotating shaft.

[0010] In a further optimization, the driving device has a movable end that extends to the rotating shaft to form a docking and drives the rotating shaft to rotate. The rotating shaft drives the gear to rotate, the gear drives the gear ring to rotate, and the gear ring drives the cutter body to rotate, thereby realizing the circumferential movement of the cutter body relative to the roller body.

[0011] Further optimization involves the following: when there are two or more blades, the rotating shaft, gear, and toothed ring are all configured corresponding to the blades. Each toothed ring is arranged side-by-side on the kit along the axial direction of the roller. Each rotating shaft is distributed circumferentially along the roller. The rotation of the roller causes each rotating shaft to move to the active end close to the drive device, thereby enabling the drive device to drive each rotating shaft to rotate independently.

[0012] In a further optimization, the kit is slidably connected to the roller body via a transmission mechanism. The kit reciprocates along the axial direction of the roller body, thereby driving the cutter body to reciprocate along the axial direction of the roller body.

[0013] In a further optimization, the transmission mechanism includes a bracket with a support seat slidably connected to it. The support seat slides back and forth along the axial direction of the roller and is movably inserted into a slot to form a positioning, so that the support seat drives the kit to move back and forth along the axial direction of the roller.

[0014] Preferably, the blade is a cutting blade for cutting cardboard or a creasing blade for creasing cardboard.

[0015] Further optimization involves providing a roller shaft on one side of the roller body. The roller shaft is either a transmission roller or a cutter roller. The roller body and the roller shaft are connected by a driving component, enabling free switching between uniform speed, acceleration, and deceleration states.

[0016] Further optimization is possible when the spacing between the circumferential blades is equivalent to the spacing between corresponding cutting points or indentation points on the cardboard, in which case the roller or roller shaft can rotate at a constant speed; when the spacing between the blades is less than or greater than the spacing between corresponding cutting points or indentation points on the cardboard, in which case the roller or roller shaft can rotate by deceleration or acceleration.

[0017] The technical advantages of this invention are as follows: at least one blade is distributed circumferentially along the outer periphery of the roller, and a kit is provided between the blade and the roller. The blade is mounted on the kit, and the blade can move circumferentially along the kit through a drive mechanism. This allows for automatic adjustment of the distance between blades on the same kit, which not only improves production efficiency but also provides both manual and automatic adjustment. The automatic adjustment method makes the position adjustment of the blade more accurate and stable. At the same time, multiple kits can be axially fitted on the same roller, and adjacent kits can move axially along the roller through a transmission structure, thereby achieving adjustment of the axial position of the blade. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the overall structure in Embodiment 1;

[0019] Figure 2 This is a front view of the overall structure in Embodiment 1;

[0020] Figure 3 This is a structural diagram of the blade body, kit, and drive mechanism in Embodiment 1;

[0021] Figure 4 This is a three-dimensional view of the overall structure in Embodiment 2;

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a structural diagram of the blade body and kit in Embodiment 2;

[0024] Figure 7 This is a structural diagram of the blade body and drive mechanism in Embodiment 2.

[0025] In the diagram: 1. Roller body; 2. Blade body; 3. Kit; 4. Drive unit; 5. Positioning hole; 6. Limit seat; 7. Limit slot; 8. Gear ring; 9. Rotating shaft; 10. Gear; 11. Drive unit; 12. Bracket; 13. Support base; 14. Slot; 15. Movable seat; 16. Roller shaft; 17. Drive component; Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0027] Example 1

[0028] This utility model includes a bracket, on which a cutter roller is provided. The cutter roller includes a roller body 1 that can rotate along its own axis. At least one cutter body 2 is arranged in the circumferential direction of the roller body 1. Each cutter body 2 is movably mounted on the roller body 1, that is, the cutter body 2 can reciprocate along the roller body 1 in the circumferential direction. A fitting 3 is provided between the roller body 1 and the cutter body 2. The fitting 3 is usually a cylindrical structure that forms a sleeve with the roller body 1. The fitting 3 rotates with the rotation of the roller body 1.

[0029] The blade body 2 is driven by a drive mechanism to move circumferentially, so that each blade body 2 can move independently relative to the roller body 1, or multiple blade bodies 2 can move synchronously, thereby realizing the adjustable distance between individual blade bodies 2 or between multiple blade bodies 2.

[0030] In this embodiment, the driving mechanism includes a driving device 4 and a positioning hole 5. The driving device 4 is driven by a motor, hydraulic cylinder, or pneumatic cylinder. The driving device 4 has a movable end, which is lifted and lowered by the driving device 4. The movable end is provided with a docking end, and a driving source is also provided inside the movable end to drive the docking end to rotate. That is, the docking end can be rotated by the driving end and lifted and lowered by the driving device 4. In other words, the docking end of the driving device 4 can be moved above the blade body 2 by the lifting and lowering action, and then rotated. The positioning hole 5 is opened on the surface of the blade body 2. The driving device 4 is located above the positioning hole 5 and its movable end extends into the positioning hole 5 to form a docking. That is, the docking end of the movable end is inserted into the positioning hole 5 and positioned with the positioning hole 5, so that the driving device 4 is connected to the blade body 2. Then, the blade body 2 moves circumferentially relative to the roller body 1 by the rotation of the roller body 1.

[0031] In addition, the positioning hole 5 extends through the kit 3, and a fastener is screwed into the positioning hole 5. The blade body 2 is connected to the kit 3 through the fastener. The mating end of the movable end extends into the positioning hole 5 and mates with the fastener. The mating end tightens or loosens the fastener by rotating in both directions, so that the blade body 2 is locked or unlocked on the kit 3. That is, the drive mechanism can both position and connect the blade body 2, and tighten and loosen the fastener of the blade body 2, so that the blade body 2 can automatically move in a circumferential direction. When the blade body 2 moves to the preset position, tightening the fastener can fix the blade body 2.

[0032] Furthermore, the kit 3 may have limiting seats 6 at both ends of the blade body 2. In this embodiment, the limiting seats 6 are located at both ends or one end of the kit 3, or are integral with the kit 3. The limiting seats 6 and the kit 3 form abutments, or the limiting seats 6 form limiting grooves 7. The two ends of the blade body 2 abut against one side of the limiting seats 6, or the two ends of the blade body 2 are inserted into the limiting grooves 7, which plays an axial limiting role on the blade body 2, so that the blade body 2 can move circumferentially along one side of the limiting seats 6 or the limiting grooves 7, preventing the blade body 2 from axially deviating.

[0033] Furthermore, the kit 3 can slide axially along the roller 1 under the drive structure, thereby driving the cutter body 2 to reciprocate along the roller 1 axis, ultimately enabling the kit 3 to adjust its position relative to the roller 1.

[0034] Furthermore, the number of kits 3 on the roller body 1 is at least one, and each kit 3 is provided with at least one cutter body 2, so as to realize simultaneous grooving or indentation of multiple parts of the same roller body 1.

[0035] The drive structure includes a support base 13, which is slidably connected to the bracket 12. The support base 13 slides back and forth along the axial direction of the roller body 1. The kit 3 is provided with a slot 14, and the support base 13 is movably inserted into the slot 14 to form a positioning, so that the support base 13 drives the kit 3 to move back and forth along the axial direction of the roller body 1. The sliding between the support base 13 and the bracket 12 is usually achieved by a transmission structure. The transmission structure can be a gear 10 rack structure. The rack is mounted on the bracket 12 and extends along the axial direction of the roller body 1. The gear 10 is rotatably connected to the support base 13. The support base 13 is provided with a drive component that drives the gear 10 to rotate. The rotation of wheel 10 causes support seat 13 to reciprocate along the rack, thereby enabling the cutter body 2 to reciprocate along the axial direction of roller 1. In this embodiment, the bottom of support seat 13 is a plate-shaped protrusion structure that is inserted into slot 14 from top to bottom, with a certain gap between it and slot 14, so as not to interfere with the rotation of kit 3 with roller 1, while driving kit 3 to move axially. It should be noted that the part of support seat 13 inserted into slot 14 is provided with a wear-resistant layer, which forms a wear-resistant layer between it and the two inner walls of slot 14, preventing direct friction between support seat 13 and inner wall of slot 14, and reducing wear on support seat 13 and kit 3.

[0036] In addition, the drive device 4 is connected to a movable seat 15, which is also slidably connected to the bracket 12, allowing the drive device 4 to reciprocate along the bracket 12 relative to the axial direction of the roller 1. The sliding connection method of the movable seat 15 is the same as that of the support seat 13, and will not be described in detail here. Therefore, in addition to the gear 10 rack structure mentioned above, the sliding method of the support seat 13 and the movable seat 15 can also be a slider slide rail method, a belt drive method, a lead screw pair method, etc., which will not be described in detail here.

[0037] Furthermore, the blade body 2 is a cutting blade for cutting or a creasing blade for creasing.

[0038] Furthermore, a roller shaft 16 is provided on one side of the roller body 1. In this embodiment, the roller shaft 16 is located below the roller body 1. The roller shaft 16 can be a drive roller or a cutter roller. When the roller shaft 16 is a drive roller, the roller body 1 forms a cutter roller assembly with the drive roller as a cutter roller. When the roller body 1 is a cutter roller, the roller body 1 forms two cutter rollers with it, thereby processing the upper and lower parts of the paperboard.

[0039] It should be noted that both the roller body 1 and the roller shaft 16 are connected to separate drive components 17, so that each cutter roller and transmission roller can rotate independently, thereby controlling their own speed and achieving free switching between uniform speed, acceleration and deceleration states.

[0040] In other words, besides adjusting the distance between the blades 2 of the two kits 3 and the distance between the blades 2 on the same blade roller to achieve the spacing between the cuts or creases on the cardboard, the relative speed between the roller 1 and the roller shaft 16 can also be adjusted. That is, both the roller 1 and the roller shaft 16 are connected to separate drive components 17, so that each roller 1 and roller shaft 16 can rotate independently, thereby controlling its own speed. When the roller 1 and roller shaft 16 are at different speeds, the spacing between the cuts or creases on the cardboard is also different. In other words, the spacing between the cuts or creases on the cardboard can be changed back and forth when the roller 1 and roller shaft 16 are at different speeds, which is very flexible. Ultimately, the spacing between the cuts or creases on the cardboard can be flexibly adjusted. Of course, the change in the speed of the roller shaft 16 as a drive roller will cause the cardboard conveying speed to change, which will also cause the spacing between adjacent cut points or creases on the cardboard to change. That is, only the roller 1 or roller shaft 16 needs to be adjusted to achieve the purpose of adjusting the spacing between corresponding cut points or creases on the cardboard, which is very convenient and greatly improves work efficiency.

[0041] It should be emphasized that the speed adjustment of the roller body 1 and roller shaft 16 mentioned above refers specifically to the cutting or creasing process. When the paperboard is at the starting feed point and the ending discharge point, or after the previous paperboard has been cut or creasing and before the next paperboard is cut or creasing, that is, during the processing gap between adjacent paperboards, the speed of the roller body 1 and roller shaft 16 may change arbitrarily and is not within the scope of this adjustment.

[0042] It should be noted that the blades cut or creasing on the cardboard by rotating. The circumferential distance between the blades, i.e., the arc length, is equal to the straight-line distance between the corresponding cutting or creasing points on the cardboard. At this time, the blades rotate at a constant speed. When the straight-line distance between adjacent cutting or creasing points on the cardboard is less than or greater than the arc length between the blades, the rotation speed of the roller needs to be adjusted to adjust the blades. That is, the blades need to use deceleration and acceleration to rotate to the corresponding cutting or creasing point for precise cutting or creasing.

[0043] Example 2

[0044] The basic content is the same as in Embodiment 1, the difference being in the drive mechanism. In this embodiment, the drive mechanism includes a gear ring 8, a rotating shaft 9, a gear 10, and a drive device 11. The blade body 2 is connected to the gear ring 8, which is movably sleeved on the outer periphery of the kit 3. The rotating shaft 9 is axially arranged along the roller body 1 and rotatably connected to the kit 3. The gear 10 is connected to the rotating shaft 9 and rotates synchronously with the rotating shaft 9. The gear 10 meshes with the gear ring 8 for transmission. The drive device 11 has a movable end, which extends to the rotating shaft 9 to form a docking and drive the rotating shaft 9 to rotate. In this embodiment, the movable end of the drive device 11 can extend and retract. When the movable end extends to form a docking with the end of the rotating shaft 9, the drive device 11 drives the rotating shaft 9 to rotate. The rotating shaft 9 drives the gear 10 to rotate, the gear 10 drives the gear ring 8 to rotate, and the gear ring 8 drives the blade body 2 to rotate, thereby realizing the circumferential movement of the blade body 2 relative to the roller body 1, thus achieving the position adjustment of the blade body 2. When the movable end of the drive device 11 retracts and separates from the rotating shaft 9, the position adjustment of the blade body 2 is completed.

[0045] The aforementioned drive device 11 can be manual or driven by a motor, hydraulic cylinder, or pneumatic cylinder to achieve electric drive, i.e., it is used to drive the rotating shaft 9 to rotate. It can be driven manually or automatically and is suitable for different working conditions.

[0046] When there are two or more blade bodies 2, the rotating shaft 9, gear 10 and toothed ring 8 are all set corresponding to the blade body 2. Each toothed ring 8 is sleeved on the kit 3 in a row along the axial direction of the roller body 1. Each rotating shaft 9 is distributed circumferentially along the roller body 1. The rotation of the roller body 1 causes each rotating shaft 9 to move to the active end close to the drive device 11. That is, at this time, the rotation of the roller body 1 drives the rotating shaft 9 to move in a ring, so that another rotating shaft 9 is connected to the drive device 11, thereby realizing that the drive device 11 drives each rotating shaft 9 to rotate independently.

[0047] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A cutter roller assembly, characterized in that, The device includes a support frame on which a cutter roller is mounted. The cutter roller includes a roller body (1) that can rotate along its own axis. At least one cutter body (2) is arranged in the circumferential direction of the roller body (1). The cutter body (2) is movably mounted on the roller body (1). The cutter body (2) is driven by a drive mechanism to move circumferentially along the surface of the roller body (1) so that the distance between the cutter bodies (2) in the circumferential direction can be adjusted. The bracket is also provided with a driving structure, which drives the blade body (2) to move axially along the roller body (1) so that the distance between the blade bodies (2) in the axial direction can be adjusted.

2. The cutter roller assembly according to claim 1, characterized in that, A kit (3) is provided between the roller body (1) and the cutter body (2). The kit (3) is set on the roller body (1) and rotates with the roller body (1).

3. The cutter roller assembly according to claim 2, characterized in that, The driving mechanism includes a driving device (4) and a positioning hole (5). The driving device (4) has a movable end that can be raised and lowered. The positioning hole (5) is opened on the surface of the blade body (2). The movable end of the driving device (4) extends into the positioning hole (5) to form a docking. At this time, the blade body (2) moves circumferentially relative to the roller body (1) by rotating the roller body (1).

4. A cutter roller assembly according to claim 3, characterized in that, The positioning hole (5) extends through the kit (3), and a fastener is screwed into the positioning hole (5). The blade (2) is connected to the kit (3) through the fastener. The movable end of the drive device (4) extends into the positioning hole (5) and docks with the fastener. The movable end of the drive device (4) tightens or loosens the fastener by rotating in both directions, so that the blade (2) is locked or unlocked on the kit (3).

5. A cutter roller assembly according to claim 2, characterized in that, The drive mechanism includes a gear ring (8), a rotating shaft (9), a gear (10), and a drive device (11). The cutter body (2) is connected to the gear ring (8), which is movably sleeved on the outer periphery of the kit (3). The rotating shaft (9) is axially arranged along the roller body (1) and rotatably connected to the kit (3). The gear (10) is connected to the rotating shaft (9) and rotates synchronously with the rotating shaft (9).

6. A cutter roller assembly according to claim 5, characterized in that, The driving device (11) has a movable end. The movable end of the driving device (11) extends to the rotating shaft (9) to form a docking and drive the rotating shaft (9) to rotate. The rotating shaft (9) drives the gear (10) to rotate. The gear (10) drives the gear ring (8) to rotate. The gear ring (8) drives the cutter body (2) to rotate, so that the cutter body (2) can move circumferentially relative to the roller body (1).

7. A cutter roller assembly according to claim 5, characterized in that, When there are two or more blade bodies (2), the rotating shaft (9), gear (10) and toothed ring (8) are all arranged corresponding to the blade body (2). Each toothed ring (8) is arranged side by side on the kit (3) along the axial direction of the roller body (1). Each rotating shaft (9) is distributed circumferentially along the roller body (1). By rotating the roller body (1), each rotating shaft (9) moves to the active end close to the drive device (11), thereby realizing that the drive device (11) drives each rotating shaft (9) to rotate individually.

8. A cutter roller assembly according to claim 7, characterized in that, The kit (3) is slidably connected to the roller (1) through a transmission mechanism. The kit (3) slides back and forth along the axial direction of the roller (1), thereby driving the cutter body (2) to move back and forth along the axial direction of the roller (1).

9. A cutter roller assembly according to claim 8, characterized in that, The transmission mechanism includes a bracket (12), on which a support seat (13) is slidably connected. The support seat (13) slides back and forth along the axial direction of the roller (1). The support seat (13) is movably inserted into the slot (14) to form a positioning, so that the support seat (13) drives the kit (3) to move back and forth along the axial direction of the roller (1).

10. A cutter roller assembly according to claim 1, characterized in that, The blade (2) is a cutting blade for cutting paperboard or a creasing blade for creasing paperboard.

11. A cutter roller assembly according to claim 10, characterized in that, The roller body (1) is also provided with a roller shaft (16) on one side. The roller shaft (16) is a transmission roller or a cutter roller. The roller body (1) and the roller shaft (16) are connected by a drive unit (17) to realize the free switching between uniform speed, acceleration and deceleration states.

12. A cutter roller assembly according to claim 11, characterized in that, When the distance between the circumferential blades (2) is equivalent to the distance between the corresponding cutting points or indentation points on the cardboard, the roller (1) or roller shaft (16) can rotate at a constant speed during the cutting or indentation process; when the distance between the circumferential blades (2) is less than or greater than the distance between the corresponding cutting points or indentation points on the cardboard, the roller (1) or roller shaft (16) can rotate by deceleration or acceleration during the cutting or indentation process.

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