A movable blade slitting circular knife

Abstract

The utility model provides a movable blade slitting round knife, it can real -time assembly corresponding slitting ring knife according to the strip width and the strip number of slitting, it has reduced the cost of slitting equipment, and only needs to replace corresponding slitting ring knife after the cutting edge of slitting ring knife is broken, has reduced the maintenance cost of equipment. It includes: roll body, it includes center knife roll body part, the installation shaft of two ends outer convex, the length direction both ends of center knife roll body part are provided with transition step connection corresponding installation shaft respectively, a plurality of slitting ring knives, each group slitting ring knife includes sleeve ring and ring blade, and the outer circumferential ring of sleeve ring is arranged with the radial outer convex ring blade, and two groups of step shaft sleeve rings, each group step shaft sleeve ring is set up in corresponding transition step, and step shaft sleeve ring is fixedly connected with corresponding end surface of center knife roll body part through axial connection screw, and the outer end surface of each group step shaft sleeve ring still arranges at least two concave thread holes.

Description

Technical Field

[0001] This utility model relates to the technical field of die-cutting and slitting equipment, specifically a movable blade slitting circular knife. Background Technology

[0002] Existing die-cutting slitting circular knives are all one-piece slitting circular knives. The slitting blades are directly and evenly spaced on the outer periphery of the roller body along its axial direction. Then, a transmission gear is fitted onto one end of the roller body. In actual operation, since different products require different slitting widths, multiple sets of slitting circular knives with different blade spacing are needed. Because the blades of the slitting circular knives need to be precisely protected, additional placement racks and space are required to properly place multiple slitting circular knives, resulting in high slitting costs. Furthermore, in actual use, the blades of the slitting circular knives are prone to chipping. Once any blade chipps, the entire slitting circular knives are scrapped, further increasing the cost of the equipment. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a movable blade slitting circular cutter, which can assemble corresponding slitting ring cutters in real time according to the width and number of slits. This reduces the cost of slitting equipment, and since only the corresponding slitting ring cutter needs to be replaced after the blade of the slitting ring cutter breaks, the maintenance cost of the equipment is reduced.

[0004] A movable blade slitting circular cutter, characterized in that it comprises: The roller body includes a central blade-mounted roller body portion and mounting shafts protruding at both ends. The central blade-mounted roller body portion has transition steps at both ends in the length direction to connect to the corresponding mounting shafts. A plurality of slitting ring cutters, each slitting ring cutter including a collar and a ring blade, wherein the outer periphery of the collar is provided with radially outwardly protruding ring blades; And two sets of stepped shaft sleeves, each set of stepped shaft sleeves is sleeved on the corresponding transition step, and the stepped shaft sleeves are fixed to the corresponding end face of the central tool roller body by axial connecting screws. The outer end face of each set of stepped shaft sleeves is also arranged with at least two internal concave thread holes. The central blade roller body is axially fitted with several slitting ring blades. The spacing between the ring blades of adjacent slitting ring blades corresponds to the width of the slitting strip. The total number of slitting ring blades corresponds to the number of strips to be cut.

[0005] Its further features are: All slitting ring cutters are of the same model. Each set of slitting ring cutters also has at least two sets of radial mounting holes that penetrate in the thickness direction on the collar. Each set of radial mounting holes is a threaded hole and is equipped with a corresponding mounting bolt. The outer circular surface of the central blade-mounting roller body is provided with several recessed positioning guide grooves. The positioning guide grooves extend along the length of the roller body. The number of positioning guide grooves is equal to the number of radial mounting holes of the collar of each set of strip-shaped blades. The circumferential position of the positioning guide grooves corresponds to the circumferential position of the radial mounting holes of each collar. When the mounting bolt has a bolt head, the thickness of the bolt head does not protrude beyond the cutting edge of the ring blade, and the bolt head does not interfere with the surface arrangement of the slit product. When the mounting bolt does not have a bolt head, the outer end of the mounting bolt is locked inside the radial mounting hole; After the axial position of the slitting ring cutter is fixed, the head end face of each set of mounting bolts is in close contact with the corresponding position of the bottom of the positioning guide groove to ensure that the slitting ring cutter is in a stable and reliable position during operation. It also includes a transmission gear, which is mounted on a mounting shaft at one end, and the mounting ring of the transmission gear is fixed to the corresponding concave threaded hole of the stepped shaft sleeve by fasteners, which makes the entire slitting circular knife have a rotation input end. The central blade-loading roller body is also engraved with a scale along its length. The scale is set from the center of the central blade-loading roller body with a 0 mark at both ends, so that the distance between the ring blades can be reliably and clearly identified.

[0006] After adopting the above technical solution, the central bladed roller part of the roller body is fitted with a corresponding number of slitting ring blades according to the set slitting width and quantity, and the spacing between adjacent ring blades of the slitting ring blades is aligned and installed according to the slitting width. Then, two sets of stepped bushings are fitted onto the transition steps and fixedly installed. It can assemble the corresponding slitting ring blades in real time according to the slitting width and number of slitting, which reduces the cost of slitting equipment. Moreover, after the blade of the slitting ring blade is chipped, only the corresponding slitting ring blade needs to be replaced, which reduces the maintenance cost of the equipment. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the main view structure of this utility model; Figure 2 This is a side view of the stepped shaft collar of this utility model; Figure 3 This is a front view of the slitting ring cutter of this utility model; The names corresponding to the serial numbers in the diagram are as follows: Roller body 10, center-mounted blade roller body part 11, positioning guide groove 111, mounting shaft 12, transition step 13, slitting ring cutter 20, collar 21, radial mounting hole 211, ring blade 22, blade part 221, stepped shaft collar 30, internal concave thread hole 31, axial connecting screw 40, mounting bolt 50, bolt head 51, transmission gear 60, mounting ring 61, scale 70. Detailed Implementation

[0008] A movable blade slitting circular knife, see Figures 1-3 It includes a roller body 10, several slitting ring cutters 20, and two sets of stepped shaft sleeves 30; The roller body 10 includes a centrally mounted blade roller body 11 and mounting shafts 12 protruding at both ends. Transition steps 13 are respectively provided at both ends of the centrally mounted blade roller body 11 in the length direction to connect the corresponding mounting shafts 12. Each set of strip ring cutters 20 includes a collar 21 and a ring blade 22. The outer periphery of the collar 21 is provided with radially outwardly protruding ring blades 21. Each set of step shaft sleeves 30 is sleeved on the corresponding transition step 13, and the step shaft sleeves 30 are fixed to the corresponding end face of the center tool roller body 11 by axial connecting screws 40. At least two internal concave threaded holes 31 are also arranged on the outer end face of each set of step shaft sleeves 30. The central blade roller body 11 is axially fitted with several slitting ring blades 20. The spacing between the ring blades 22 of adjacent slitting ring blades 20 is arranged according to the slitting width. The number of all slitting ring blades 20 corresponds to the number of slitting strips of the material strip.

[0009] In practice, all slitting ring cutters 20 are of the same model. Each set of slitting ring cutters 20 has two sets of equally spaced radial mounting holes 211 that penetrate through the thickness direction on its collar 21. Each set of radial mounting holes 211 is a threaded hole and is equipped with a corresponding mounting bolt 50. Two recessed positioning guide grooves 111 are arranged at intervals on the outer circular surface of the central blade roller body 11. The positioning guide grooves 111 extend along the length direction of the roller body 10. There are two positioning guide grooves 111, and the circumferential positions of the two positioning guide grooves 111 correspond to the circumferential positions of the radial mounting holes 211 of each collar 21. In a specific embodiment, when the mounting bolt 50 has a bolt head 51, the thickness of the bolt head 51 does not protrude beyond the cutting edge 221 of the ring blade 22, and the bolt head 51 does not interfere with the surface arrangement of the slitting product.

[0010] In practice, after the slitting ring cutter 20 is fixed in axial position, the head end face of each set of mounting bolts 50 is closely attached to the corresponding position of the bottom of the positioning guide groove 111 to ensure that the slitting ring cutter 20 is in a stable and reliable position during operation.

[0011] In a specific implementation, it also includes a transmission gear 60, which is mounted on the mounting shaft 12 at one end. The mounting ring 61 of the transmission gear 60 is fixed to the corresponding concave threaded hole 31 of the stepped shaft sleeve 30 by fasteners, which makes the entire slitting circular knife have a rotation input end.

[0012] In practice, the central tool-loading roller body 11 is also engraved with a scale 70 along its length. The scale 70 is added from the center of the length direction of the centrally mounted blade roller body 11 with the 0 mark at both ends, so that the spacing between the ring blades 22 can be reliably and clearly identified.

[0013] During assembly, the central bladed roller of the roller body is fitted with a corresponding number of slitting ring blades according to the set slitting width and quantity. The spacing between adjacent ring blades of the slitting ring blades is aligned and installed according to the slitting width. Then, two sets of stepped bushings are fitted onto the transition steps and fixed in place. It can assemble the corresponding slitting ring blades in real time according to the slitting width and number of slitting, which reduces the cost of slitting equipment. Moreover, after the blade of the slitting ring blade is chipped, only the corresponding slitting ring blade needs to be replaced, which reduces the maintenance cost of the equipment.

[0014] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0015] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A movable blade slitting circular knife, characterized in that, It includes: The roller body includes a central blade-mounted roller body portion and mounting shafts protruding at both ends. The central blade-mounted roller body portion has transition steps at both ends in the length direction to connect to the corresponding mounting shafts. A plurality of slitting ring cutters, each slitting ring cutter including a collar and a ring blade, wherein the outer periphery of the collar is provided with radially outwardly protruding ring blades; And two sets of stepped shaft sleeves, each set of stepped shaft sleeves is sleeved on the corresponding transition step, and the stepped shaft sleeves are fixed to the corresponding end face of the central tool roller body by axial connecting screws. The outer end face of each set of stepped shaft sleeves is also arranged with at least two internal concave thread holes. The central blade roller body is axially fitted with several slitting ring blades. The spacing between the ring blades of adjacent slitting ring blades corresponds to the width of the slitting strip. The total number of slitting ring blades corresponds to the number of strips to be cut.

2. The movable blade slitting circular knife according to claim 1, characterized in that: All slitting ring cutters are of the same model. Each set of slitting ring cutters also has at least two sets of radial mounting holes that penetrate in the thickness direction on the collar. Each set of radial mounting holes is a threaded hole and is equipped with a corresponding mounting bolt.

3. A movable blade slitting circular knife according to claim 2, characterized in that: The outer circular surface of the central blade-mounting roller body is provided with several recessed positioning guide grooves. The positioning guide grooves extend along the length of the roller body. The number of positioning guide grooves is equal to the number of radial mounting holes of the collar of each set of strip-shaped blades. The circumferential position of the positioning guide grooves corresponds to the circumferential position of the radial mounting holes of each collar.

4. A movable blade slitting circular knife according to claim 2, characterized in that: When the mounting bolt has a bolt head, the thickness of the bolt head does not protrude beyond the cutting edge of the ring blade, and the bolt head does not interfere with the surface arrangement of the slit product.

5. A movable blade slitting circular knife according to claim 2, characterized in that: When the mounting bolt does not have a bolt head, the outer end of the mounting bolt is locked inside the radial mounting hole.

6. A movable blade slitting circular knife according to claim 3, characterized in that: After the axial position of the slitting ring cutter is fixed, the head end face of each set of mounting bolts is in close contact with the corresponding position of the bottom of the positioning guide groove.

7. A movable blade slitting circular knife according to claim 1, characterized in that: It also includes a transmission gear, which is mounted on a mounting shaft at one end, and the mounting ring of the transmission gear is fixed to the corresponding concave threaded hole of the stepped shaft sleeve by fasteners.

8. A movable blade slitting circular knife according to claim 1, characterized in that: The central blade-loading roller body is also engraved with a scale along its length.

9. A movable blade slitting circular knife according to claim 8, characterized in that: The scale is set from the center of the central blade-loading roller body with the 0 mark at both ends along the length direction.

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