CN220784090U - Elasticity cutting knife - Google Patents

Abstract

The utility model discloses an elastic cutting knife, and relates to the field of cutting knives. The utility model comprises a base mechanism and a support, wherein the support comprises a support body, a mounting hole is formed in the top of the support body, a torsion spring is arranged in the mounting hole, a paper cutting mechanism is rotatably connected to the mounting hole, a cutter disc is rotatably connected to the support body through a rotating shaft, a guide groove is formed in the cutter disc, the paper cutting mechanism comprises a slide rod, a magnet is arranged at one end of the slide rod, and a spring is sleeved at the other end of the slide rod.

Description

Elasticity cutting knife

Technical Field

The utility model relates to the field of cutting knives, in particular to an elastic cutting knife.

Background

The paper cutter is a necessary tool for cutting various papers, photos, art designing card papers and cold and hot mounting papers, adopts an automatic paperweight design, a knife edge is specially treated, the paper cutter is sharp in cutting and durable, a cut product is neat and hairless, the paper cutter is only a general name of a cutter use type in daily life, the paper cutter is used for cutting the papers through metal, and the metal edge is not sharp, but the paper is cut under the action force of the metal by adopting tight mechanical joint.

The existing elastic cutting tool base body is customized, one cutting tool can cut one type of round corner to two types of round corners, the cutting tool usually depends on a cutter with good metal plates in advance to cut, at most, three to four round corners can be arranged on the base body of one cutting tool to cut paper, and when various round corner paper is cut, frequent transposition is needed to cut, so that time and labor are wasted.

Disclosure of Invention

Based on the above, the utility model aims to provide an elastic cutting knife so as to solve the technical problem that multi-fillet cutting can be performed at one position.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an elasticity cutting tool, includes base mechanism, support, the support includes the support body, and the top of the support body is provided with the mounting hole, the inside torsional spring that is provided with of mounting hole, the mounting hole rotates and is connected with paper cutting mechanism, the support body rotates through the pivot and is connected with the blade disc, the inside of blade disc is provided with the guide slot, paper cutting mechanism includes the slide bar, the one end of slide bar is provided with magnet, the other end of slide bar has cup jointed the spring.

Through adopting above-mentioned technical scheme, the top mounting hole position of the support body is the centre of a circle of guiding groove, and the position of pivot is the center of four centre of a circle of guiding groove, and when the blade disc rotated, four centre of a circle rotated the centre of a circle position respectively, and the semicircle of four centre of a circle corresponding different radiuses just also rotated the cutting position, helps the quick selection to cut the centre of a circle, and magnet can provide reliable fixedly, prevents that blade from removing fish tail paper when installing paper.

Further, base mechanism includes the base body, two recesses have been seted up to the inside of the base body, two the recess is the right angle structure setting, two the inside of recess all is provided with the stopper, two all be provided with the spout on the stopper.

Through adopting above-mentioned technical scheme, the stopper can keep perpendicular, can provide the location for the paper installation, and the inaccurate paper that hurts of location when avoiding the chamfer influences pleasing to the eye, and the spout can be when the blade disc rotates automatic remove the assigned position with the stopper, reduces the error that manual operation produced.

Further, a limiting piece is fixedly connected to the bottom of the cutterhead, the limiting piece is propped against the sliding groove, and the limiting piece is made of stainless steel.

Through adopting above-mentioned technical scheme, the spacing piece shelters from half guiding groove, can provide the guide for the blade on the one hand, on the other hand can push the stopper to the assigned position through surface and spout offset when rotating.

Further, the surface sliding connection of slide bar has the installation piece, the bottom fixedly connected with blade of installation piece, the installation piece appearance is cylindrical setting.

Through adopting above-mentioned technical scheme, when the blade disc rotates, the installation piece slides along the slide bar simultaneously, helps removing accurate cutting position with the blade, and columniform installation piece can slide in the guide way.

Further, a clamping groove is formed in one side of the base body, the clamping groove is fixedly connected with the support body, and the support body is provided with a support magnet.

Through adopting above-mentioned technical scheme, can reduce the complexity of installation, improve production efficiency, support magnet can with magnet actuation, fix paper cutting mechanism on the support body, reduce paper cutting mechanism free motion when not cutting.

Further, a limiting block spring is arranged between the groove and the limiting block, and a paper pressing sheet is fixedly connected to the surface of the base body.

Through adopting above-mentioned technical scheme, spacing spring can compress tightly stopper and spacing piece, provides the location for paper cutting, presses the scraps of paper material to be stainless steel shell fragment, can compress tightly the paper, avoids the paper not hard up effect of cutting when the cutting.

Further, two paper pressing sheets are arranged, the two paper pressing sheets are arranged in a right-angle structure, one end of each paper pressing sheet is arranged in a wedge-shaped structure, and the circle centers of the guide grooves are a first circle center, a second circle center, a third circle center and a fourth circle center respectively.

Through adopting above-mentioned technical scheme, two press paper pieces that are the right angle setting can provide fixedly to the both sides of paper, improves fixed reliability, and wedge mechanism can reduce the resistance that the paper received when installing the paper, and first centre of a circle, second centre of a circle, third centre of a circle, fourth centre of a circle are four summit of square, the determination of centre of a circle position when being convenient for rotate.

In summary, the utility model has the following advantages:

1. according to the utility model, the paper cutting mechanism, the bracket body and the mounting hole are arranged, because the circle centers of the four parts of the guide groove are arranged to be square, then the circle centers of the rotation of the cutter head are the center points distributed in the square, when the cutter head rotates by one quarter of a circle, the circle centers of an arc rotate to the position of the mounting hole, meanwhile, the mounting block moves to the starting point of the cut round angle in parallel along with the track of the guide groove, after the paper is mounted, the mounting block is pulled along the guide groove, rotates around the mounting hole to cut the required round angle, and then the torsion spring bounces the slide bar to the initial position and is sucked by the magnet at the same time, so that the paper cutting process is completed once, the cutting effect can be improved by twice, and the use convenience of the mechanism is improved;

2. according to the utility model, the cutter disc, the guide groove and the base mechanism are arranged, when the round angle with the specified size is required to be cut, the cutter disc is rotated to the arc position with the specified radius, meanwhile, the limiting piece pushes the limiting piece to move to the tangent line position of the arc with the required radius along with the rotation of the cutter disc, then the paper is abutted against the two limiting pieces, meanwhile, the paper pressing piece is lifted upwards when the paper is inserted, then the paper is pressed by the elasticity of the paper pressing piece and then is cut, and the size of the required round angle can be conveniently adjusted by arranging the guide groove, so that the paper cutting efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a diagram of an embodiment of the present utility model;

FIG. 4 is a second diagram of an embodiment of the present utility model;

FIG. 5 is a third diagram of an embodiment of the present utility model;

fig. 6 is a fourth diagram of an embodiment of the present utility model.

In the figure: 1. a paper cutting mechanism; 101. a magnet; 102. a slide bar; 103. a mounting block; 104. a blade; 105. a spring; 2. a bracket; 201. a mounting hole; 202. a bracket body; 203. a bracket magnet; 204. a rotating shaft; 205. a torsion spring; 3. a cutterhead; 4. a guide groove; 5. a limiting piece; 6. a base mechanism; 601. a clamping groove; 602. a stopper spring; 603. a limiting block; 604. a chute; 605. a groove; 606. a base body; 607. pressing paper sheets; 701. a first center of a circle; 702. a second center of circle; 703. a third circle center; 704. and a fourth circle center.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

1-6, including base mechanism 6, support 2 includes support body 202, and the top of support body 202 is provided with mounting hole 201, the inside torsional spring 205 that is provided with of mounting hole 201, mounting hole 201 rotates and is connected with paper cutting mechanism 1, and support body 202 rotates through pivot 204 and is connected with blade disc 3, and the inside of blade disc 3 is provided with guide slot 4, and paper cutting mechanism 1 includes slide bar 102, and slide bar 102's one end is provided with magnet 101, and spring 105 has been cup jointed to the other end of slide bar 102, and the top mounting hole position of support body 202 is the second centre of a circle 702 of guide slot 4, and the position of pivot 204 is the center of four centre of a circle of guide slot 4, and when blade disc 3 rotated, four centre of a circle rotated to second centre of a circle 702 position respectively, and the semicircle of different radiuses that four centre of a circle correspond also rotated to cutting position, helps selecting the centre of a circle to cut fast, and magnet 101 can provide reliable fixing, prevents that the blade from removing the fish tail paper when installing, has improved mechanism reliability.

Referring to fig. 1, the base mechanism 6 includes a base body 606, two grooves 605 are provided in the base body 606, the two grooves 605 are arranged in a right-angle structure, limiting blocks 603 are provided in the two grooves 605, sliding grooves 604 are provided on the two limiting blocks 603, the limiting blocks 603 can be kept vertical, positioning can be provided for paper installation, inaccurate positioning hurts paper during corner cutting is avoided, the appearance is affected, the sliding grooves 604 can automatically move the limiting blocks 603 to a designated position during rotation of the cutter head 3, errors caused by manual operation are reduced, and the operation efficiency is improved.

Referring to fig. 1, a limiting plate 5 is fixedly connected to the bottom of the cutterhead 3, the limiting plate 5 abuts against a sliding groove 604, the limiting plate 5 is made of stainless steel, and the limiting plate 5 shields half of the guiding groove 4, so that on one hand, guiding can be provided for the blade 104, on the other hand, the limiting block 603 can be pushed to a designated position through abutting against the outer surface and the sliding groove 604 when rotating, and the movement of the mechanism is facilitated to be utilized to maintain precision.

Referring to fig. 1 and 2, the outer surface of the sliding rod 102 is slidably connected with a mounting block 103, the bottom of the mounting block 103 is fixedly connected with a blade 104, the mounting block 103 is in a cylindrical shape, and when the cutterhead 3 rotates, the mounting block 103 slides along the sliding rod 102 at the same time, so that the blade 104 can be moved to an accurate cutting position, and the cylindrical mounting block can slide in the guide groove 4.

Referring to fig. 1, a clamping groove 601 is formed on one side of a base body 606, the clamping groove 601 is fixedly connected with a support body 202, the support body 202 is provided with a support magnet 203, so that the complexity of installation can be reduced, the production efficiency is improved, the support magnet 203 can be attracted with the magnet 101, the paper cutting mechanism 1 is fixed on the support body 202, free movement of the paper cutting mechanism when the paper cutting mechanism is not cut is reduced, and the overall attractiveness of the mechanism is improved.

Referring to fig. 1, a stopper spring 602 is disposed between a groove 605 and a stopper 603, a paper pressing piece 607 is disposed on the surface of a base body 606, the stopper spring 602 can press the stopper 603 and the stopper piece 5, positioning is provided for paper cutting, the paper pressing piece 607 can press paper, the influence of paper loosening on cutting effect during cutting is avoided, and the attractiveness of cutting results is improved.

Referring to fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, two paper pressing sheets 607 are provided, the two paper pressing sheets 607 are arranged in a right angle structure, one end of each paper pressing sheet 607 is arranged in a wedge structure, the circle center of each guide groove 4 is a first circle center 701, a second circle center 702, a third circle center 703 and a fourth circle center 704, the two paper pressing sheets 607 in the right angle structure can fix two sides of paper, the fixing reliability is improved, the wedge mechanism can reduce the resistance of the paper when the paper is installed, the first circle center 701, the second circle center 702, the third circle center 703 and the fourth circle center 704 are square four vertexes, the circle center position is determined when the paper is convenient to rotate, and a foundation is provided for the design of an indexing mechanism.

Referring to the first embodiment, when the cutterhead 3 is in the position of fig. 3, the second center 702 is vertically opposite to the position of the mounting hole 201, at this time, the mounting block 103 is located at the tangent line of the first arc and the second arc, at this time, the limiting block 603 is located at the tangent line of the arc opposite to the second center 702, at this time, when the paper is mounted, two sides of the paper are abutted against the limiting block 603 and tangent to the center line of the guide groove 4, at this time, the blade 105 on the mounting block 103 slides along the guide groove 4, and cuts the paper along the center line of the guide groove 4, thereby completing one-time corner cutting.

Referring to the second embodiment, when the cutterhead 3 rotates to the position of fig. 4, the third center 703 is vertically opposite to the position of the mounting hole 201, at this time, the mounting block 103 is located at the tangent line between the second circular arc and the adjacent third circular arc in the drawing, at this time, the limiting block 603 moves to the tangent line between the circular arcs opposite to the third center 703 due to the pushing of the limiting piece 5, at this time, when the paper is mounted, two sides of the paper are abutted against the limiting block 603 and tangent to the center line of the guide groove 4, at this time, the mounting block 103 is pulled to slide along the guide groove 4, and the blade 105 on the mounting block 103 cuts the paper along the center line of the guide groove 4, so as to complete one-time corner cutting.

Referring to the third embodiment, when the cutterhead 3 rotates to the position of fig. 5, the fourth center 704 is vertically opposite to the position of the mounting hole 201, at this time, the mounting block 103 is located at the tangent line of the third arc and the fourth arc in the drawing, at this time, the limiting block 603 moves to the tangent line of the arc opposite to the fourth center 704 due to the pushing of the limiting piece 5, at this time, when the paper is mounted, two sides of the paper are abutted against the limiting block 603 and tangent to the center line of the guide groove 4, at this time, the mounting block 103 is pulled to slide along the guide groove 4, and the blade 105 on the mounting block 103 cuts the paper along the center line of the guide groove 4, so as to complete one-time corner cutting.

Referring to the fourth embodiment, when the cutterhead 3 rotates to the position of fig. 4, the first circle center 701 is vertically opposite to the position of the mounting hole 201, at this time, the mounting block 103 is located at the tangent line of the fourth circular arc and the fifth circular arc adjacent to the fourth circular arc in the drawing, at this time, the limiting block 603 moves to the tangent line of the circular arc opposite to the first circle center 701 due to the pushing of the limiting piece 5, at this time, when the paper is mounted, two sides of the paper are abutted against the limiting block 603 and tangent to the center line of the guide groove 4, at this time, the mounting block 103 is pulled to slide along the guide groove 4, and the blade 105 on the mounting block 103 cuts the paper along the center line of the guide groove 4, so as to complete one-time corner cutting.

The implementation principle of the embodiment is as follows: firstly, because the circle centers of the four parts of the guide groove 4 are arranged as squares, then the circle center of the rotation of the cutterhead 3 is a center point distributed in the square, each time the cutterhead 3 rotates by one quarter circle, the circle center of an arc rotates to the position of the mounting hole 201, meanwhile, the mounting block 103 moves to the starting point of the cut round angle in parallel along with the track of the guide groove 4, after the paper is mounted, the mounting block 103 is pulled along the guide groove 4, the mounting block 103 rotates around the mounting hole 201 to cut the required round angle, then the torsion spring 205 rebounds the slide rod 102 to the initial position and is sucked by the magnet 101, and the process of cutting the paper once is completed;

when the round angle with the specified size needs to be cut off, the cutter disc 3 is rotated to the arc position with the specified radius, meanwhile, the limiting piece 5 pushes the limiting piece 603 to move to the tangent line position of the arc with the required radius along with the rotation of the cutter disc 3, then paper is abutted against the two limiting pieces 603, meanwhile, the paper pressing piece 607 is lifted upwards when the paper is inserted, and then the paper is pressed by the elasticity of the paper pressing piece 607 and then is cut.

The parts not involved in the present utility model are the same as or can be implemented by the prior art, and are not described in detail herein.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims (7)

1. The utility model provides an elasticity cutting shear, includes base mechanism (6), support (2), its characterized in that: support (2) are including support body (202), and the top of support body (202) is provided with mounting hole (201), mounting hole (201) inside is provided with torsional spring (205), mounting hole (201) rotate and are connected with paper cutting mechanism (1), support body (202) are connected with blade disc (3) through pivot (204) rotation, the inside of blade disc (3) is provided with guiding groove (4), paper cutting mechanism (1) are including slide bar (102), the one end of slide bar (102) is provided with magnet (101), spring (105) have been cup jointed to the other end of slide bar (102).

2. The stretch clipper of claim 1, wherein: the base mechanism (6) comprises a base body (606), two grooves (605) are formed in the base body (606), the grooves (605) are arranged in a right-angle structure, limiting blocks (603) are arranged in the grooves (605), and sliding grooves (604) are formed in the limiting blocks (603).

3. The stretch clipper of claim 2, wherein: the bottom of the cutter head (3) is fixedly connected with a limiting piece (5), the limiting piece (5) is propped against the sliding groove (604), and the limiting piece (5) is made of stainless steel.

4. The stretch clipper of claim 2, wherein: the outer surface sliding connection of slide bar (102) has installation piece (103), the bottom fixedly connected with blade (104) of installation piece (103), installation piece (103) appearance is cylindrical setting.

5. The stretch clipper of claim 2, wherein: one side of the base body (606) is provided with a clamping groove (601), the clamping groove (601) is fixedly connected with the support body (202), and the support body (202) is provided with a support magnet (203).

6. The stretch clipper of claim 2, wherein: a limiting block spring (602) is arranged between the groove (605) and the limiting block (603), and a paper pressing sheet (607) is fixedly connected to the surface of the base body (606).

7. The stretch clipper of claim 6, wherein: the paper pressing plates (607) are arranged in two, the two paper pressing plates (607) are arranged in a right-angle structure, one end of each paper pressing plate (607) is arranged in a wedge-shaped structure, and the circle centers of the guide grooves (4) are respectively a first circle center (701), a second circle center (702), a third circle center (703) and a fourth circle center (704).