Roller paper cutter

Abstract

The utility model relates to the technical field of paper cutters, in particular to a roller paper cutter which comprises a paper cutting plate, a paper pressing portion, a cutter changing seat and a plurality of cutter rests, the cutter changing seat is rotatably arranged at one end of the paper cutting plate, the cutter rests are detachably connected to the cutter changing seat, and the paper pressing portion is arranged on the paper cutting plate. The multiple tool rests are distributed around the rotating center of the tool changing base in the axial direction, the tool rests slide towards the outer side in the radius direction of the tool changing base, and each tool rest is provided with a hob. Wherein the paper pressing part is provided with a rail groove for the knife rest to slide, the paper pressing part is provided with a cutter hole parallel to the rail groove at the position of the rail groove, and the cutter hole is used for a hobbing cutter to cut paper; according to the roller paper cutter disclosed by the embodiment of the utility model, the rotary cutter changing seat is arranged on the paper cutting plate, and the cutter holders are connected to the cutter changing seat in the sliding manner, so that the hobbing cutter can be replaced only by rotating the cutter changing seat when being replaced, and the replacing efficiency of the hobbing cutter is greatly improved.

Description

Technical Field

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

[0002] The current roller paper cutter is a roller cutter mounted on a roller bracket, and the roller cutter bracket is slidably connected to the cutting board through a guide rail structure. When cutting paper, the roller cutter bracket is slid to make the roller cutter roll on the paper, and the roller cutter cuts the paper during the rolling process.

[0003] Although the existing roller paper cutter is relatively convenient, it still has some defects. For example, it is not convenient to replace the blade of the existing roller paper cutter. When replacing the blade, the guide rail structure needs to be removed before replacing the blade. Therefore, the present application proposes a roller paper cutter. Summary of the Invention

[0004] The utility model aims to provide a roller paper cutter to solve the problem that the blade of the current paper cutter is inconvenient to replace quickly.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A roller paper cutter, comprising a cutting board, a paper pressing portion, a tool changing seat, and a plurality of tool holders, wherein the tool changing seat rotates on one end of the cutting board, and a plurality of tool holders are detachably connected to the tool changing seat, and the plurality of tool holders are distributed axially around the rotation center of the tool changing seat, and the tool holders slide outward along the radial direction of the tool changing seat, and each tool holder is provided with a roller cutter; wherein the paper pressing portion is provided with a track groove for the tool holder to slide, and the paper pressing portion is provided with a cutting hole parallel to the track groove for the roller cutter to cut paper.

[0007] Furthermore, the tool changer is a cylindrical structure, and the tool changer comprises:

[0008] turret;

[0009] Multiple partitions are arranged at the end of the rotating frame to isolate the tool holder. The partitions are distributed divergently around the rotation center of the rotating frame in the circumferential direction. The partitions are fixed to the rotating frame. The end of the rotating frame is provided with a tool hole. The tool hole is arranged between adjacent partitions to avoid the hob.

[0010] Furthermore, the tool holder includes:

[0011] Press knife cover;

[0012] The knife seat is fixedly connected to the knife pressing cover, and the hob is rotatably connected between the knife pressing cover and the knife seat. A hob hole is provided in the middle of the knife seat, and the hob is located in the hob hole.

[0013] Furthermore, two guide rail blocks are provided on the side of the tool holder away from the tool pressing cover. The guide rail block is an L-shaped structure. When the tool holder slides, the guide rail block slides in the track groove. A guide rail hole is also provided on the rotating frame. When the tool holder is located on the tool changing seat, the guide rail block is located in the guide rail hole.

[0014] Furthermore, a rotation groove is provided at the end of the cutting board, and the rotation frame is rotatably connected to the rotation groove. The depth of the rotation groove is greater than the thickness of the rotation frame, so that the tool holder is partially located in the rotation groove.

[0015] Furthermore, the paper cutter further includes a limiting portion for limiting the tool changer seat, and a limiting mounting groove is provided on the edge of the rotating groove, and the limiting portion includes:

[0016] A limit head, which is a block-shaped protrusion and is located in the limit installation groove;

[0017] Elastic member, the elastic member is an elliptical ring structure;

[0018] Mounting member, the mounting member is fixed to the cutting board;

[0019] A limiting groove is provided on the edge of the rotating frame. The limiting groove is a groove structure, and the limiting head is clamped in the limiting groove.

[0020] Furthermore, a limiting protrusion is provided on the end of the rotating frame, and a limiting groove is provided on the tool pressing cover. When the tool holder is located on the tool changing seat, the limiting protrusion is located in the limiting groove.

[0021] Furthermore, the paper pressing part is hinged on the cutting board.

[0022] Furthermore, the paper cutter further comprises:

[0023] A safety buckle is used to lock the paper pressing part so that it cannot rotate.

[0024] Furthermore, the paper cutter further comprises:

[0025] Extension rulers are located on both sides of the cutting board and are used to extend the scales on the cutting board.

[0026] In summary, the present invention has the following beneficial effects compared with the prior art:

[0027] The roller paper cutter disclosed in the embodiment of the utility model is provided with a rotating tool change seat on the cutting board, and a plurality of tool holders are slidably connected to the tool change seat. When replacing the roller cutter, it is only necessary to rotate the tool change seat to complete the replacement of the roller cutter, which greatly improves the replacement efficiency of the roller cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic structural diagram of a roller paper cutter disclosed in an embodiment of the present invention.

[0029] Figure 2 This is a structural schematic diagram of the roller paper cutter disclosed in an embodiment of the present utility model when the paper pressing part is opened.

[0030] Figure 3 The present invention is a structural schematic diagram of a cutting board in a roller paper cutter disclosed in an embodiment of the present invention.

[0031] Figure 4 This is a structural schematic diagram of the paper pressing portion of the roller paper cutter disclosed in an embodiment of the present utility model.

[0032] Figure 5 This is a structural schematic diagram of the tool changer and tool holder in the roller paper cutter disclosed in an embodiment of the present utility model.

[0033] Figure 6 The present invention is a schematic structural diagram of a cutter changing seat in a roller paper cutter disclosed in an embodiment of the present invention.

[0034] Figure 7 The present invention is a schematic structural diagram of a pressure cutter cover in a roller paper cutter disclosed in an embodiment of the present invention.

[0035] Figure 8 The present invention is a schematic structural diagram of a knife holder in a roller paper cutter disclosed in an embodiment of the present invention.

[0036] Figure 9 This is a schematic structural diagram of the limiting portion of the roller paper cutter disclosed in an embodiment of the present utility model.

[0037] Figure 10 The present invention is a schematic structural diagram of a safety buckle in a roller paper cutter disclosed in an embodiment of the present invention.

[0038] Figure 11 The present invention is a schematic structural diagram of an extension ruler in a roller paper cutter disclosed in an embodiment of the present invention.

[0039] Figure 12 This is a schematic structural diagram of the back side of a cutting board in a roller paper cutter disclosed in an embodiment of the present utility model.

[0040] Reference numerals:

[0041] 10. Cutting board; 11. Rotation slot; 12. Ear hole; 13. Safety slot; 14. Limit mounting slot; 15. Extension slot; 16. Pad strip; 17. Ruler slot;

[0042] 20. Paper pressing part; 21. Track groove; 22. Rotating lug; 23. Cutter hole; 24. First buckle strip;

[0043] 30. Tool changer; 31. Rotating frame; 32. Limiting groove; 33. Partition plate; 34. Guide rail hole; 35. Tool hole; 36. Limiting protrusion;

[0044] 40. Tool holder; 41. Tool pressing cover; 42. First roller groove; 43. Tool holder; 44. Second roller groove; 45. Guide rail block; 46. Limiting groove;

[0045] 50. Safety buckle; 51. Buckle plate; 52. Second buckle strip; 53. Press head;

[0046] 60. Limiting part; 61. Limiting head; 62. Elastic part; 63. Mounting part.

[0047] 70. Extension ruler. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example 1

[0049] like Figure 1 and Figure 3 As shown, an embodiment of the present invention provides a roller paper cutter, which includes a cutting board 10, a paper pressing part 20, a tool changing seat 30 and a plurality of tool holders 40. The tool changing seat 30 rotates on one end of the cutting board 10, and the plurality of tool holders 40 are detachably connected to the tool changing seat 30, and the plurality of tool holders 40 are distributed around the rotation center of the tool changing seat 30 in the axial direction. The tool holder 40 slides outward along the radial direction of the tool changing seat 30, and each tool holder 40 is provided with a roller cutter; wherein the paper pressing part 20 is provided with a track groove 21 for the tool holder 40 to slide, and the paper pressing part 20 is provided with a cutting hole 23 parallel to the track groove 21 for the roller cutter to cut paper.

[0050] In this embodiment, when cutting paper, the paper is placed between the paper pressing part 20 and the cutting board 10 so that the paper pressing part 20 presses the paper. After the paper is fixed, the knife holder 40 is slid. After the knife holder 40 is separated from the knife changing seat 30, it enters the track groove 21 and slides along the track groove 21 when the staff applies force. The roller on the knife holder 40 passes through the cutting hole 23 and rolls on the paper. The roller cuts the paper during the rolling process. After the cutting is completed, the knife holder 40 is returned to the knife changing seat 30. When replacing the roller, it is only necessary to rotate the knife changing seat 30 so that the new knife holder 40 is located at the end of the paper pressing part 20 to complete the knife changing action.

[0051] The roller paper cutter disclosed in the embodiment of the present utility model is provided with a rotating tool change seat 30 on the cutting board 10, and a plurality of tool holders 40 are slidably connected to the tool change seat 30. When replacing the roller cutter, it is only necessary to rotate the tool change seat 30 to complete the replacement of the roller cutter, which greatly improves the replacement efficiency of the roller cutter.

[0052] Specifically, in this embodiment, Figure 3 As shown, the cutting board 10 is a flat plate structure, and a scale for positioning paper is provided on the cutting board 10 (the same as the prior art). The cutting board 10 is a rectangular structure, and a rotating groove 11 is provided at one end of the cutting board 10 in the length direction, and the tool changing seat 30 is rotatably connected to the rotating groove 11.

[0053] As a preferred implementation in this embodiment, the paper pressing portion 20 is hinged on the cutting board 10. Figure 3 and Figure 4 As shown, the cutting board 10 is provided with an ear hole 12, and the paper pressing part 20 is provided with a rotating ear 22. When installing the paper pressing part 20, the rotating ear 22 is inserted into the ear hole 12 so that the paper pressing part 20 can rotate on the cutting board 10. When placing paper, the paper pressing part 20 is opened (as shown in FIG. Figure 3 As shown), place the paper under the paper pressing portion 20, and rotate the paper pressing portion 20 in the opposite direction so that the paper pressing portion 20 is pressed on the paper. At this time, the paper pressing portion 20 fixes the paper;

[0054] like Figure 4 As shown, the paper pressing portion 20 is a long strip structure, the rotating ears 22 are provided at both ends of the paper pressing portion 20, the track groove 21 is a T-shaped groove opened in the middle of the paper pressing portion 20, the cutter hole 23 is opened at the bottom of the T-shaped groove and passes through the bottom of the T-shaped groove, and the track groove 21 is provided along the length direction of the paper pressing portion 20;

[0055] It should be noted that when placing paper, one side of the paper pressing part 20 rotates in a direction away from the cutting board 10 , and when pressing paper, the paper pressing part 20 rotates in a direction close to the cutting board 10 .

[0056] Preferably, the cutting board 10 is provided with a portion for placing paper in a groove-like structure. When cutting paper, the paper is placed on the bottom surface of the groove-like structure. The groove-like structure passes through the cutting board 10 from both sides. An extension groove 15 is provided on the side of the groove-like structure away from the tool change seat, and the extension groove 15 is located at the end of the trajectory of the roller.

[0057] Preferably, the cutting board 10 is further provided with a pad 16 in the track of the roller, and the roller rolls on the pad 16 to prevent the roller from scratching the cutting board 10. The pad 16 is made of plastic material and is embedded in the cutting board 10 by gluing or screwing.

[0058] As a preferred implementation in this embodiment, Figure 4 and Figure 5 As shown, the tool changing seat 30 is a cylindrical structure, and the tool changing seat 30 includes a rotating frame 31 and a plurality of partitions 33 arranged at the end of the rotating frame 31. The partitions 33 are used to isolate the tool holder 40. The partitions 33 are distributed divergently around the rotation center of the rotating frame 31 in the circumferential direction. The partitions 33 are fixed to the rotating frame 31. In this embodiment, the partitions 33 and the rotating frame 31 are an integrated structure. A tool hole 35 is provided at the end of the rotating frame 31. The tool hole 35 is provided between adjacent partitions 33 for avoiding the hob.

[0059] Preferably, Figure 7 and Figure 8 As shown, the tool holder 40 includes a tool pressing cover 41 and a tool seat 43, the hob is located between the tool pressing cover 41 and the tool seat 43, and the shaft of the hob is rotatably connected between the tool pressing cover 41 and the tool seat 43;

[0060] The pressure blade cover 41 is a sector-shaped block, and the blade seat 43 is a sector-shaped plate. The pressure blade cover 41 is provided with a first roller groove 42, which is a groove-shaped structure. The blade seat 43 is provided with a second roller groove 44, which is a groove-shaped structure. A roller hole is provided in the middle of the blade seat 43. When the pressure blade cover 41 and the blade seat 43 are fixed between them, the axis of the roller is located in the first roller groove 42 and the second roller groove 44, and the roller is located in the roller hole.

[0061] Preferably, two guide rail blocks 45 are further provided on the side of the tool holder 43 away from the tool pressing cover 41. The guide rail block 45 is an L-shaped structure. When the tool holder 40 slides, the guide rail block 45 slides in the track groove 21. The rotating frame 31 is also provided with a guide rail hole 34. When the tool holder 40 is located on the tool changing seat 30, the guide rail block 45 is located in the guide rail hole 34. There are two guide rail holes 34, and the two guide rail holes 34 are respectively located on both sides of the tool hole 35. When the tool holder 40 is located on the tool changing seat 30, the guide rail hole 34 clamps the guide rail block 45 to prevent the tool holder 40 from detaching from the end.

[0062] Preferably, the depth of the rotating groove 11 is greater than the thickness of the rotating frame 31, so that when the tool changing seat 30 is located in the rotating groove 11, the tool holder 40 is partially located in the rotating groove 11, thereby preventing the tool holder 40 from falling off. The rotating groove 11 is provided with an opening at a position close to the paper pressing part 20, and the tool holder 40 slides from the opening onto the paper pressing part 20.

[0063] Preferably, a limiting protrusion 36 is also provided at the end of the rotating frame 31, and a limiting groove 46 is provided on the knife pressing cover 41. When the tool holder 40 is located on the tool changing seat 30, the limiting protrusion 36 is located in the limiting groove 46. The limiting protrusion 36 is a semi-spherical protrusion, and the tool seat 43 is located on the inner side of the knife pressing cover 41. Example 2

[0064] As another embodiment of the present invention, this embodiment differs from the first embodiment in that the paper cutter further comprises:

[0065] A safety buckle 50 is used to lock the paper pressing portion 20 so that it cannot rotate;

[0066] Specifically, such as Figure 3 、 Figure 4 As shown in the cutting board 10, in this embodiment, a first buckle strip 24 is provided on the paper pressing part 20, and the first buckle strip 24 is an L-shaped structure. A safety groove 13 is provided on the cutting board 10, and the safety buckle 50 is slidably connected to the safety groove 13. The safety buckle 50 includes a buckle plate 51, a second buckle strip 52 and a pressure head 53. The buckle plate 51 is sheet-shaped, and the second buckle strip 52 is an L-shaped protrusion. The second buckle strip 52 is stuck in the safety groove 13, and the pressure head 53 is located at one end of the buckle plate 51. When the safety buckle 50 slides, the pressure head 53 is stuck at the first buckle strip 24, so that the pressure head 53 can prevent the paper pressing part 20 from rotating. The paper pressing part 20 is located on the side of the paper pressing part 20 away from the rotating support ear 22, the safety groove 13 is a square countersunk hole, and the second buckle strip 52 is stuck in the safety groove 13. Example 3

[0067] As another embodiment of the present invention, this embodiment differs from the first embodiment in that the paper cutter further comprises:

[0068] The limiting portion 60 is used to limit the tool change seat 30;

[0069] like Figure 3 and Figure 9 As shown, a limit mounting groove 14 is provided on the edge of the rotating groove 11, and the limit mounting groove 14 is a through-hole structure. The limit portion 60 includes a limit head 61, an elastic member 62 and a mounting member 63. The limit head 61 is a block-shaped protrusion, and the limit head 61 is located in the limit mounting groove 14. The elastic member 62 is an elliptical ring structure. The mounting member 63 is fixed to the fixing column on the cutting board 10. The mounting member 63 is a cylindrical structure. The limit head 61, the elastic member 62 and the mounting member 63 are an integrated structure. A limit groove 32 is provided on the edge of the rotating frame 31, and the limit groove 32 is a groove structure. The limit head 61 is stuck in the limit groove 32. When the tool changer 30 rotates, the limit head 61 switches in different limit grooves 32, thereby limiting the tool changer 30. A plurality of limit grooves 32 are provided, and the plurality of limit grooves 32 are evenly distributed around the axis of the rotating frame 31 in the circumferential direction. Example 4

[0070] like Figure 11 and Figure 12 As shown in FIG. 1 , as another embodiment of the present invention, this embodiment differs from embodiment 1 in that the paper cutter further comprises:

[0071] Extension rulers 70 , located on both sides of the cutting board 10 and used to extend the scale on the cutting board 10 ;

[0072] Specifically, a ruler slot 17 is provided on the back of the cutting board 10, and the shape of the ruler slot 17 is the same as that of the extension ruler 70. When not in use, the extension ruler 70 is placed in the ruler slot 17 through an interference connection. The end of the extension ruler 70 is provided with a socket structure, and the back of the cutting board 10 is provided with a plug structure. An avoidance groove is provided between the scale of the extension ruler 70 and the socket. When the extension ruler 70 is connected to the cutting board 10, the socket is located on the plug. The scale on the extension ruler is used to extend the customer on the cutting board 10. For example, in this embodiment, the scale of the cutting board 10 is 0-3cm, and the scale of the extension ruler 70 starts from 3cm, which is used to assist in the measurement of large paper. There are two extension rulers 70, and they are respectively arranged on both sides of the cutting board 10.

[0073] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. As used in this utility model and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0074] It should be understood that although the terms first, second, third, etc. may be used in this utility model to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, first information can also be referred to as second information without departing from the scope of this utility model, and similarly, second information can also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as "when...", "when...", or "in response to determining."

[0075] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller paper cutter, comprising a cutting board and a paper pressing portion, characterized in that: The paper cutter also includes: A tool changing seat, the tool changing seat being rotated on one end of the cutting board; Multiple tool holders, multiple tool holders are detachably connected to the tool changer, and multiple tool holders are distributed axially around the rotation center of the tool changer, and the tool holders slide outward along the radius of the tool changer, and each tool holder is provided with a hob; wherein, The paper pressing part is provided with a track groove for the knife holder to slide, and the paper pressing part is provided with a cutter hole parallel to the track groove for the roller knife to cut the paper.

2. The roller paper cutter according to claim 1, characterized in that: The tool changer is a cylindrical structure, and comprises: turret; Multiple partitions are arranged at the end of the rotating frame to isolate the tool holder. The partitions are distributed divergently around the rotation center of the rotating frame in the circumferential direction. The partitions are fixed to the rotating frame. The end of the rotating frame is provided with a tool hole. The tool hole is arranged between adjacent partitions to avoid the hob.

3. The roller paper cutter according to claim 2, characterized in that: The tool holder comprises: Press knife cover; The knife seat is fixedly connected to the knife pressing cover, and the hob is rotatably connected between the knife pressing cover and the knife seat. A hob hole is provided in the middle of the knife seat, and the hob is located in the hob hole.

4. The roller paper cutter according to claim 3, characterized in that: Two guide rail blocks are provided on the side of the tool holder away from the tool pressing cover. The guide rail blocks are L-shaped structures. When the tool holder slides, the guide rail blocks slide in the track grooves. A guide rail hole is also provided on the rotating frame. When the tool holder is located on the tool changing seat, the guide rail blocks are located in the guide rail holes.

5. The roller paper cutter according to claim 2, characterized in that: The cutting board end is provided with a rotation groove, the rotation frame is rotatably connected in the rotation groove, the depth of the rotation groove is greater than the thickness of the rotation frame, so that the tool holder is partially located in the rotation groove.

6. The roller paper cutter according to claim 5, characterized in that: The paper cutter further includes a limiting portion for limiting the position of the tool changer seat, and a limiting mounting groove is provided on the edge of the rotating groove. The limiting portion includes: A limit head, which is a block-shaped protrusion and is located in the limit installation groove; Elastic member, the elastic member is an elliptical ring structure; Mounting member, the mounting member is fixed to the cutting board; A limiting groove is provided on the edge of the rotating frame. The limiting groove is a groove structure, and the limiting head is clamped in the limiting groove.

7. The roller paper cutter according to claim 3, characterized in that: A limiting protrusion is further provided at the end of the rotating frame, and a limiting groove is provided on the knife pressing cover. When the knife holder is located on the tool changing seat, the limiting protrusion is located in the limiting groove.

8. The roller paper cutter according to any one of claims 1 to 7, characterized in that: The paper pressing part is hinged on the cutting board.

9. The roller paper cutter according to claim 8, characterized in that: The paper cutter also includes: A safety buckle is used to lock the paper pressing part so that it cannot rotate.

10. The roller paper cutter according to any one of claims 1 to 7, characterized in that: The paper cutter also includes: Extension rulers are located on both sides of the cutting board and are used to extend the scales on the cutting board.

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