Spiral paper cutter

Abstract

The utility model discloses a spiral paper cutter in the technical field of paper cutters, which comprises a base, the base is provided with a cutting edge mounting seat and a cutting edge which are detachably connected with the base, the cutting edge is detachably connected with the cutting edge mounting seat, one end of the cutting edge mounting seat is provided with a positioning groove extending along the length direction of the cutting edge mounting seat, and the other end of the cutting edge mounting seat is provided with a clamping groove. A positioning groove is formed in the base, a positioning protruding block integrally formed with the cutting edge is arranged at one end of the cutting edge, the positioning protruding block is matched with the positioning groove in shape and size, and the cutting edge is provided with a plurality of V-shaped notches distributed at equal intervals. And only the blade mounting seat and the blade matched with the blade mounting seat need to be replaced, positioning is not needed in the re-mounting process, the mounting steps are simple and convenient, and the blade replacement efficiency of the spiral paper cutter can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cutters, in particular to a spiral paper cutter. Background Art

[0002] The paper cutter blade is one of the important parts of the paper cutter. It is a special paper cutter blade used in various high-end paper cutters such as automatic paper cutters, CNC paper cutters, and program-controlled paper cutters. It can provide high-precision paper cutting for the printing industry, packaging industry, etc. The sharpness and service life of the paper cutter blade greatly affect the working efficiency of the paper cutter. The paper cutter blade is made of high-temperature welding of the blade and the blade body. The blade material is high-speed steel, and the blade body material is low-carbon steel. The paper cutter blades sold on the market mainly include long blades, arc blades, and circular blades. Among them, the blade structure is divided into teeth and no teeth. The hardness of the blade of the paper cutter determines the durability of the blade. The structural design of the blade and the smoothness of the blade grinding determine the cutting resistance of the blade. The more reasonable the blade structure design, the higher the smoothness of the grinding, the smaller the cutting resistance, the longer the service life of the paper cutter blade, and the better the paper cutting quality;

[0003] However, the spiral paper cutters and bases currently on the market are usually of integral design, and partial replacement is not possible. When replacing, the paper cutter needs to be removed from the roller and aligned when reinstalled, which is cumbersome and inefficient. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technical solutions, the utility model provides a spiral paper cutter, which can effectively solve the technical problems that the spiral paper cutters and the base on the market are usually of integral design and cannot be partially replaced. When replacing, the paper cutter needs to be removed from the roller and aligned when reinstalled, which is cumbersome and inefficient.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a spiral paper cutter, comprising a base, the base is provided with a blade mounting seat and a blade detachably connected thereto, the blade is detachably connected to the blade mounting seat, one end of the blade mounting seat is provided with a positioning groove extending along the length direction thereof, one end of the blade is provided with a positioning protrusion integrally formed therewith, the shape and size of the positioning protrusion are consistent with the positioning groove, and the blade is provided with a plurality of V-shaped notches distributed at equal intervals.

[0006] Preferably, a group of bolt holes are provided at one end of the base, and a first locking groove and a first locking bolt are provided at both ends of the blade mounting seat. The first locking bolt passes through the first locking groove and is threadedly connected to the bolt hole.

[0007] Preferably, at least two connecting grooves are provided at one end of the base, and the connecting grooves are in an oblong shape. The blade is provided with a second locking groove and a second locking bolt for fastening to the base, and the second locking bolt passes through the second locking groove and the connecting groove and is threadedly connected to the base.

[0008] Preferably, the positioning protrusion is connected to the positioning groove in a sliding fit.

[0009] Preferably, the positioning protrusion is interference connected with the positioning groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] Since the blade mounting seat and the blade are detachably connected to the base, when replacing the tool, only the blade mounting seat and the blade used therewith need to be replaced. No positioning is required during reinstallation. The installation steps are simple and convenient, which can effectively improve the tool changing efficiency of the spiral paper cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a spiral paper cutter of the utility model;

[0013] Figure 2 This is an exploded view of a spiral paper cutter of the utility model;

[0014] Figure 3 for Figure 2 A magnified view of the structure of part A;

[0015] Figure 4 for Figure 2 A magnified view of the structure of part B;

[0016] Figure 5 for Figure 2 A magnified view of the structure of part C.

[0017] Numbers in the figure:

[0018] 1-first locking bolt, 2-second locking bolt, 3-blade mounting seat, 4-base, 5-blade, 6-first locking groove, 7-bolt hole, 8-second locking groove, 9-connecting groove, 10-V-shaped notch, 11-positioning groove, 12-positioning protrusion. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-5 As shown, the utility model provides a spiral paper cutter, including a base 4, the base 4 is provided with a blade mounting seat 3 and a blade 5 detachably connected thereto, the blade 5 is detachably connected to the blade mounting seat 3, one end of the blade mounting seat 3 is provided with a positioning groove 11 extending along its length direction, one end of the blade 5 is provided with a positioning protrusion 12 integrally formed therewith, the shape and size of the positioning protrusion 12 are consistent with the positioning groove 11, the positioning protrusion 12 is connected to the positioning groove 11 by sliding fit, or the positioning protrusion 12 is connected to the positioning groove 11 by interference fit, so that A group of bolt holes 7 are provided at one end of the base 4, and a first locking groove 6 and a first locking bolt 1 are provided at both ends of the blade mounting seat 3. The first locking bolt 1 penetrates the first locking groove 6 and is threadedly connected to the bolt hole 7. At least two connecting grooves 9 are provided at one end of the base 4. The connecting groove 9 is in an oblong shape. The blade 5 is provided with a second locking groove 8 and a second locking bolt 2 for fastening to the base 4. The second locking bolt 2 penetrates the second locking groove 8 and the connecting groove 9 and is threadedly connected to the base 4. The blade 5 is provided with a plurality of V-shaped notches 10 distributed at equal intervals.

[0021] Compared with the traditional technology: since the blade mounting seat 3 and the blade 5 are detachably connected to the base 4, when replacing the tool, it is only necessary to replace the blade mounting seat 3 and the blade 5 used therewith. No positioning is required during the reinstallation process. The installation steps are simple and convenient, which can effectively improve the tool changing efficiency of the spiral paper cutter.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A spiral paper cutter, comprising a base, characterized in that: The base is provided with a blade mounting seat and a blade detachably connected thereto, the blade is detachably connected to the blade mounting seat, one end of the blade mounting seat is provided with a positioning groove extending along its length direction, one end of the blade is provided with a positioning protrusion integrally formed therewith, the shape and size of the positioning protrusion are consistent with the positioning groove, and the blade is provided with a plurality of V-shaped notches distributed at equal intervals.

2. A spiral paper cutter according to claim 1, characterized in that: A group of bolt holes are arranged at one end of the base, and a first locking groove and a first locking bolt are arranged at both ends of the blade mounting seat. The first locking bolt passes through the first locking groove and is threadedly connected with the bolt hole.

3. The spiral paper cutter according to claim 1, characterized in that: One end of the base is provided with at least two connecting grooves, and the connecting grooves are in an oblong shape. The blade is provided with a second locking groove and a second locking bolt for fastening to the base. The second locking bolt passes through the second locking groove and the connecting groove and is threadedly connected to the base.

4. The spiral paper cutter according to claim 1, characterized in that: The positioning protrusion is connected with the positioning groove in a sliding fit.

5. The spiral paper cutter according to claim 1, characterized in that: The positioning protrusion is interference connected with the positioning groove.

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