CN215825458U - Cutter head assembly and paper cutter with same - Google Patents

Abstract

The utility model relates to a cutter head component and a paper cutter applying the cutter head component, wherein the cutter head component comprises a front shell, a rear shell, a cutter rest, a base, an elastic part, a rotating disc and a knob; one end of the elastic piece is arranged on the base, the other end of the elastic piece is arranged in the rear shell, and the rotating disc and the tool rest are assembled together to form a blade inlet and a blade outlet; the knob is rotatably arranged at the knob hole of the front shell, and the knob is in rotating fit with the rotating disc. When the rear shell is pressed, the blade can move out of the inlet and outlet of the blade to cut paper; the pressing on the rear shell is released, and the blade moves into the inner side of the blade inlet and outlet, so that the blade is hidden, and the safety protection effect is achieved.

Description

Cutter head assembly and paper cutter with same

Technical Field

The utility model relates to the field of paper cutters, in particular to a cutter head component and a paper cutter with the same.

Background

The existing paper cutters generally cut paper by a blade, the edge of the blade is not sharp, and the cutting operation of the blade on the paper can be completed by combining the force application of a user. At present, the paper cutters which are popular in the market mainly adopt movable blades.

The paper cutter with movable blade is used to cut paper with movable blade. When the paper needs to be cut, the paper can be cut completely by manually moving the blade; when paper does not need to be cut, the blade on the paper cutter is still exposed outside, and at the moment, the hand of a user, particularly the fingers of the user, is easily cut, so that great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a cutter head assembly of a paper cutter in view of the above prior art. The blade in the cutter head assembly can be moved out of the outer side of the blade access opening when in use, and can be automatically moved into the inner side of the blade access opening when not in use, so that the blade is hidden, and the safety protection effect is achieved.

The second technical problem to be solved by the utility model is to provide a paper cutter with the cutter head component.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a cutter head assembly, comprising:

a front housing having a knob hole on a side thereof;

a rear case assembled with the front case;

a blade holder located in a space formed by the front housing and the rear housing after assembly, the blade holder having at least one blade disposed thereon; and the tool rest is connected with the rear shell;

a base located at the lower side of the rear shell and assembled with the rear shell, wherein the base and the pressed rear shell can generate relative sliding along the vertical direction;

the elastic piece is positioned in a space formed after the base and the rear shell are assembled, one end of the elastic piece is arranged on the base, and the other end of the elastic piece is arranged in the rear shell;

the rotating disc is positioned in a space formed after the front shell and the rear shell are assembled, the rotating disc is assembled with the tool rest, and a blade access is formed after the rotating disc is assembled with the tool rest;

and the knob is rotatably arranged at the knob hole and is in rotating fit with the rotating disc.

In the cutter head assembly, the knob is connected with the rotating disc through a torsion spring.

Further, in the cutter head assembly, a plurality of blades distributed at intervals are arranged on the cutter frame, each blade is fixed on the cutter frame through a first fixing structure, and a plurality of second fixing structures connected with the corresponding first fixing structures are arranged on the rotating disc.

In the cutter head component, the first fixing structure is provided with a fastening hole, and the second fixing structure is a rod body which is matched with and enters the corresponding fastening hole; or the second fixing structure is provided with a fastening hole, and the first fixing structure is a rod body which is matched with and enters the corresponding fastening hole.

Further, the tool bit assembly further comprises a connecting rod, a first through hole is formed in the tool rest, a second through hole is formed in the rotating disc, one end of the connecting rod is arranged on the rear shell, and the other end of the connecting rod sequentially penetrates through the first through hole and the second through hole and is fixed in the second through hole.

Still further, in the cutter head assembly, each of the blades is located at a periphery of the first through hole, and the second fixing structure is located at a periphery of the second through hole.

In the bit assembly, one end of the knob is located outside the front housing, and the other end of the knob is located inside the front housing.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: a paper cutter, characterized in that any one of the cutter head components is applied.

Compared with the prior art, the utility model has the advantages that:

firstly, in the cutter head component of the utility model, when paper needs to be cut, only the rear shell needs to be pressed to move relative to the base, the rear shell moving downwards drives the cutter frame to move downwards until the blade on the cutter frame moves out of the blade inlet and outlet to cut the paper; when the cutting is not needed, the pressing on the rear shell is released, the rear shell returns upwards under the elastic restoring force of the elastic piece to move, the rear shell drives the cutter frame to move upwards, the blade on the cutter frame moves into the inner side of the blade inlet and outlet, the blade is hidden, and the safety protection effect is achieved;

secondly, because the knife rest is provided with the plurality of blades, when the blades need to be replaced to cut paper, the knife rest can be driven to rotate through the rotating disc through the rotation of the knob, then the rotating knife rest can drive the blades to rotate along with the blades, so that the required blades can be rotated to the positions corresponding to the inlet and outlet of the blades, and the paper is cut by utilizing the current blades.

Drawings

FIG. 1 is a schematic view of a cutter head assembly according to the present embodiment;

FIG. 2 is a schematic bottom view of the cutter head assembly of FIG. 1;

FIG. 3 is an exploded view of the cutter head assembly of FIG. 1;

FIG. 4 is a schematic view of a knob in the bit assembly of FIG. 1;

FIG. 5 is a cross-sectional view of the cutter head assembly shown in FIG. 1;

FIG. 6 is a schematic structural view of the paper knife in this embodiment;

fig. 7 is a sectional view of the paper knife shown in fig. 6.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

The embodiment provides a cutter head component of a paper cutter. Specifically, as shown in fig. 1 to 5, the tool bit assembly of the embodiment includes a front housing 11, a rear housing 12, a tool post 13, a plurality of blades 14, a base 15, an elastic member 16, a rotary disk 17, and a knob 18, the front housing 11 having a knob hole 110 on a side surface thereof, the knob 18 being rotatably provided at the knob hole 110, and one end of the knob 18 being located at an outer side of the front housing 11, the other end of the knob 18 being located at an inner side of the front housing 11, the knob 18 being connected to the rotary disk 17 by a torsion spring 19;

the rear shell 12 is assembled with the front shell 11, the rear shell 12 is provided with a connecting rod 121, the blade holder 13 is provided with a first through hole 130, the blade holder 13 is positioned in a space formed after the front shell 11 and the rear shell 12 are assembled, the blade holder 13 is provided with a plurality of blades 14 which are distributed at intervals, each blade 14 is fixed on the blade holder 13 through a first fixing structure 141, and each blade 14 is positioned at the periphery of the first through hole 130;

the first fixing structure 141 has a fastening hole 1410 therein,

the tool holder 13 is connected with the rear shell 12; the base 15 is positioned at the lower side of the rear shell 12 and assembled with the rear shell 12, and the base 15 and the pressed rear shell 12 can generate relative sliding along the vertical direction; the elastic piece 16 is positioned in a space formed after the base 15 and the rear shell 12 are assembled, one end of the elastic piece 16 is arranged on the base 15, and the other end of the elastic piece 16 is arranged in the rear shell 12;

the rotary disk 17 is located in a space formed after the front case 11 and the rear case 12 are assembled, the rotary disk 17 is provided with a second through hole 170, a plurality of second fixing structures 171 respectively connected with the corresponding first fixing structures 141, and a protruding column 172 located on the other side of the rotary disk, the second fixing structures 171 are located at the periphery of the second through hole 170, the second fixing structures 171 are rod bodies fitted into the corresponding fastening holes 1410, one end of the connecting rod 121 is located on the rear case 12, the other end of the connecting rod 121 sequentially passes through the first through hole 130 and the second through hole 170 and is fixed in the second through hole 170, the knob 18 is provided with a fixing hole 181 fitted with the protruding column 172 to achieve fixed connection,

the rotary disk 17 is assembled with the tool holder 13, and the blade entrance 10 is formed after the rotary disk 17 is assembled with the tool holder 13.

Of course, in order to meet the fastening requirement between the first fixing structure and the second fixing structure, the second fixing structure 171 may also have a fastening hole, and the first fixing structure 141 is a rod body that is fitted into the corresponding fastening hole.

In addition, the embodiment also provides a paper cutter applying the cutter head component. Specifically, referring to fig. 6, the paper cutter includes a cutter head assembly 1 and a guide rail 2, and the cutter head assembly 1 is disposed on the guide rail 2.

The working principle of the paper knife in this embodiment is described below with reference to fig. 1 to 7:

when paper needs to be cut, a downward force is manually applied to the rear shell 12, the rear shell 12 moves relative to the base 13, the rear shell 12 compresses the elastic piece 16 to be compressed and deformed, the rear shell 12 moving downwards towards the base drives the knife rest 13 and the rotating disc 17 to move downwards through the connecting rod 121, the knife blade 14 on the knife rest 13 moves downwards along with the downward movement until the part of the knife blade 14 moves out of the knife blade inlet/outlet 10, and at the moment, the exposed part of the knife blade 14 which is moved out and is positioned outside the knife blade inlet/outlet 10 can be used for cutting the paper.

When paper does not need to be cut, the downward pressure applied to the rear shell 12 is released, the rear shell 12 moves upwards under the action of the elastic restoring force of the elastic piece 16 (namely the rear shell restores to the initial position), the rear shell 12 which moves upwards drives the knife rest 13 and the rotating disc 17 to move upwards through the connecting rod 121, the knife blade 14 on the knife rest 13 moves downwards along with the upward movement until the part of the knife blade, which is positioned outside the knife blade inlet and outlet, moves into the inner side of the knife blade inlet and outlet 10, the hiding of the knife blade is realized, and the safety protection effect is achieved.

When the blade is required to be replaced to cut paper, the knob 18 can be rotated manually, the knob 18 drives the rotating disc 17 to rotate, then the rotating disc 17 drives the knife rest 13 to rotate, then the rotating knife rest 13 can drive the blades 14 to rotate along with the blades, so that the required blades can be rotated to the positions corresponding to the inlet and the outlet of the blades, and then the current blades are used for cutting the paper.

Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A cutter head assembly, comprising:

a front case (11) having a knob hole (110) on a side surface thereof;

a rear case (12) assembled with the front case (11);

a blade holder (13) located in a space formed by assembling the front case (11) and the rear case (12), the blade holder (13) being provided with at least one blade (14), the blade holder (13) being connected to the rear case (12);

a base (15) which is positioned at the lower side of the rear shell (12) and is assembled with the rear shell (12), wherein the base (15) and the pressed rear shell (12) can generate relative sliding along the vertical direction;

the elastic piece (16) is positioned in a space formed after the base (15) and the rear shell (12) are assembled, one end of the elastic piece (16) is arranged on the base (15), and the other end of the elastic piece (16) is arranged in the rear shell (12);

a rotary disk (17) which is positioned in a space formed after the front shell (11) and the rear shell (12) are assembled, the rotary disk (17) is assembled with the tool rest (13), and the rotary disk (17) is assembled with the tool rest (13) to form a blade access (10);

a knob (18) rotatably disposed at the knob hole (110), the knob (18) being rotatably engaged with the rotary disk (17).

2. Cutter head assembly according to claim 1, wherein the connection between the knob (18) and the turn disc (17) is via a torsion spring (19).

3. Cutter head assembly according to claim 2, wherein a plurality of spaced apart blades (14) are provided on the tool holder (13), each blade (14) being secured to the tool holder (13) by a respective first securing structure (141), and wherein a plurality of second securing structures (171) are provided on the rotatable disc (17), each second securing structure being connected to a respective first securing structure (141).

4. A cutter head assembly according to claim 3, wherein the first fixing structure (141) has fastening holes (1410) therein, and the second fixing structure (171) is a rod body fitted into the corresponding fastening holes (1410); or the second fixing structure is provided with a fastening hole, and the first fixing structure is a rod body which is matched with and enters the corresponding fastening hole.

5. The cutter head assembly according to claim 4, further comprising a connecting rod (121), wherein the cutter holder (13) is provided with a first through hole (130), the rotating disc (17) is provided with a second through hole (170), one end of the connecting rod (121) is arranged on the rear housing (12), and the other end of the connecting rod (121) sequentially passes through the first through hole (130) and the second through hole (170) and is fixed in the second through hole (170).

6. A cutter head assembly according to claim 5, wherein each blade (14) is located at the periphery of the first through bore (130) and the second securing formation (171) is located at the periphery of the second through bore (170).

7. A cutter head assembly according to any one of claims 1 to 6, wherein one end of the knob (18) is located outside the front housing (11) and the other end of the knob (18) is located inside the front housing (11).

8. A paper cutter, characterized in that a cutter head assembly (1) according to any one of claims 1 to 7 is applied.

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