CN207900351U - A kind of metal cutter - Google Patents
A kind of metal cutter Download PDFInfo
- Publication number
- CN207900351U CN207900351U CN201721814647.3U CN201721814647U CN207900351U CN 207900351 U CN207900351 U CN 207900351U CN 201721814647 U CN201721814647 U CN 201721814647U CN 207900351 U CN207900351 U CN 207900351U
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- blade
- rotation axis
- hard material
- metal cutter
- fixing piece
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Abstract
The utility model is related to a kind of cutters, specifically a kind of metal cutter, setting is on the rotating shaft, the metal cutter includes several blades, protective device is provided between the blade and the rotation axis, the protective device makes transmission failure between blade and rotation axis when encountering the hard material more than setting hardness in cutting for blade.The technical problem to be solved by the utility model is to the breakages of a part of blade of cutting tool in the prior art to need replacing entire cutter, and replacement cost is high, and then provides a kind of metal cutter not easily damaged, replacement cost is low.
Description
Technical field
The utility model is related to a kind of cutter, specifically a kind of metal cutter.
Background technology
During metal product produces or dismantles (such as pole piece is flexible coupling, battery case, auto parts and components), metal product
Include the material of more than one hardness, there are many mixing of hardened material often, when cutting the mixing material with a kind of cutter
When, often there is a situation where cracking of cutter.
Chinese patent literature CN202192332U discloses a kind of metal cutting sheet comprising cutting matrix cuts matrix
Center be provided with mounting hole, cut and be evenly equipped with several cutting cutter hubs made of wolfram steel, cutter on the edge of matrix
Body and the fixed setting of cutting matrix or integrated molding.I.e. cutting cutter hub is connect with cutting matrix rigid, therefore, in cutting process
Cutter is easy to happen fracture when easily encountering object harder than its hardness higher or comparable rigid metal, causes tool failure, and small portion
The breakage of blade is divided to need replacing entire cutter, replacement cost is high.
Utility model content
For this purpose, the technical problem to be solved by the utility model is to a part of blades of cutting tool in the prior art
Breakage needs replacing entire cutter, and replacement cost is high, and then provides a kind of metal cutter not easily damaged, replacement cost is low.
In order to solve the above technical problems, a kind of metal cutter of the utility model, on the rotating shaft, the metal is cut for setting
Knife includes several blades, is provided with protective device between the blade and the rotation axis, and the protective device is by the rotation
The power of axis passes to the blade, and makes blade when cutting hardness is more than the hard material of setting hardness in the blade and turn
Transmission failure between moving axis makes blade be encountered in cutting and is more than between each blade and rotation axis by protective device
Make transmission failure between blade and rotation axis when the hard material for setting hardness, thus it is not easily damaged, only need handle breakage when replacing
That blade exchange get off, replacement cost is low.
The blade include cutter hub and with the integrally formed knife ring of the cutter hub, the knife ring be suitable for be set in the rotation
On axis, i.e., in transmission failure, knife ring can relatively rotate shaft rotation and move, that is, facilitate the fixed enabling for facilitating protective device again.
The protective device includes the fixing piece of the fixed knife ring, the fixing piece radially across the knife ring with it is described
Rotation axis pushes against, and skids or detaches between the fixing piece and rotation axis when blade encounters the hard material, simple in structure, realizes
It is at low cost.
The knife ring is equipped with screw hole, and the fixing piece is the spiral shell pushed against across the screw hole and the rotation axis
Nail.
The sliding groove of circumferentially extending is offered in the rotation axis, the bottom of the sliding groove includes rubbing with the fixing piece
It wipes the plane of contact and so that the fixing piece is detached with the rotation axis when the blade encounters the hard material more than setting hardness
Slope.
The protective device further includes the transmission parts being fixed on the blade, between two neighboring transmission parts
It is provided with elastic conductive part, when cutting is more than the hard material of setting hardness, the hard material hinders the blade to continue to rotate, described
Fixing piece skids with the rotation axis, i.e., when blade encounters the hard material more than setting hardness, is expected firmly on the cutter hub of blade
Blocking reaction force, reaction force is conducted by the snubber of elastic conductive part, to further protect blade
It is not damaged.
The fixing piece is pressed against each other across the transmission parts with the rotation axis.
The protective device includes the transmission parts being fixed on the blade, the two neighboring transmission parts it
Between be provided with elastic conductive part, when cutting the hard material, the blade deflects under the promotion expected firmly toward anti-cut direction
And the elastic conductive part is compressed until being disengaged with the hard material, it is initial to it that the elastic conductive part resets the blade
Position, i.e. protective device can get around hard hard material, and need not shut down and can be used continuously, while be protected to blade
Shield, service life are long.
The blade is provided with evacuation cambered surface on the cutter hub at the rotation axis, for preventing the blade traditional method of indicating the pronunciation of a Chinese character from cutting
Interference is generated when direction deflects.
The protective device includes the transmission parts being fixed in the rotation axis, the transmission parts and the knife
On piece forms transmission inclined-plane, and the rotation of the rotation axis passes to the blade by the transmission inclined-plane, described in cutting
When hard material, the transmission inclined-plane skids and transmission failure.
The transmission parts are L-shaped, and several transmission parts uniform rings are arranged around the rotation axis.
The elastic conductive part is spring.
Frosting is provided at the non-blade of blade cutting side, i.e. blade passes through setting frosted on the face at blade
Face can play the effect for facilitating cutting to detach, and improve cutting efficiency.
Description of the drawings
In order to make the content of the utility model be more likely to be clearly understood, below according to the specific implementation of the utility model
Example and in conjunction with attached drawing, the utility model is described in further detail, wherein
Fig. 1 is the structural schematic diagram of blade in the utility model embodiment 1；
Fig. 2 is the structural schematic diagram of protective device in the utility model embodiment 2；
Fig. 3 is the structural schematic diagram of metal cutter in the utility model embodiment 2；
Fig. 4 is the schematic diagram of metal cutter in the utility model embodiment 3；
Fig. 5 is the partial sectional view of rotation axis in the utility model embodiment 3；
Fig. 6 is the schematic diagram of blade and transmission parts cooperation in the utility model embodiment 4；
Reference numeral is expressed as in figure：1- blades, 11- cutter hubs, 111- blades, 112- knife spines, 113- frostings, 114- are kept away
Allow cambered surface, 12- knife rings, 2- rotation axis, 3- protective devices, 31- fixing pieces, 32- transmission parts, 33- elastic conductive parts, 34- slides
Dynamic slot, 341- planes, the slopes 342-, 4- expect that 5- is driven inclined-plane firmly.
Specific implementation mode
Embodiment 1
The present embodiment metal cutter is arranged in rotation axis 2, and metal cutter includes 2 blades 1, blade 1 and rotation axis 2
Between be provided with protective device 3, protective device 3 encounters the when of expecting 4 more than setting hardness hard for blade 1 in cutting makes blade
Transmission failure between 1 and rotation axis 2.
Fig. 1 show blade 1 in the present embodiment, blade 1 include cutter hub 11 and with 11 integrally formed knife ring 12 of cutter hub, knife
Ring 12 is suitable for being set in rotation axis 2.
Protective device 3 includes the fixing piece 31 of fixing cutter ring 12, and fixing piece 31 offsets radially across knife ring 12 and rotation axis 2
Pressure is pushed against with rotation axis, is skidded between fixing piece 31 and rotation axis 2 when blade 1 encounters hard material 4 more than setting hardness.This
Knife ring 12 is equipped with screw hole in embodiment, and fixing piece 31 is the screw pushed against across screw hole and rotation axis.
Embodiment 2
Fig. 3 show the present embodiment metal cutter, is arranged in rotation axis 2, and metal cutter includes 4 blades 1, this implementation
Blade 1 is uniformly arranged around rotation axis 2 in example, and protective device 3 is provided between blade 1 and rotation axis 2, and protective device 3 is used
Make transmission failure between blade 1 and rotation axis 2 when blade 1 encounters hard material 4 more than setting hardness in cutting.
Fig. 1 show blade 1 in the present embodiment, blade 1 include cutter hub 11 and with 11 integrally formed knife ring 12 of cutter hub, knife
Ring 12 is suitable for being set in rotation axis 2.
Protective device 3 includes the fixing piece 31 of fixing cutter ring 12, the transmission parts 32 being fixed on blade 1 and elasticity
Conducting piece 33, fixing piece 31 are pressed against each other radially across knife ring 12 and rotation axis 2, encounter the hard material 4 more than setting hardness in blade 1
When fixing piece 31 and rotation axis 2 between skid, fixed by the frictional force of 31 fixing cutter ring 12 of fixing piece, more than its frictional force
When skid.Knife ring 12 is equipped with screw hole, and fixing piece 31 is the screw pushed against across screw hole and rotation axis.Elastic conductive part 33
Be arranged between two neighboring transmission parts 32, for blade 1 encounter more than setting hardness it is hard material 4 when obstruction blade 1 after
Continuous rotation, as shown in Figure 2.Transmission parts 32 are L-shaped in the present embodiment, and several transmission parts 32 are arranged around rotation axis 2.When
So, the shape of transmission parts 32 can also be to open up mounting hole in other shapes, such as C-shaped, cross or cube, as long as side
Just elastic conductive part 33 is installed.At this point, fixing piece 31 is pressed against each other across transmission parts 32 with rotation axis 2.Elastic conductive part
33 be spring.
In addition, blade 1 divides for cutting side and non-cutting side, cutting side cutter-edge formation 111, non-cutting side is molded knife spine 112,
It is also provided with frosting 113 at the non-blade of 1 cutting side of blade 111, i.e., on the face between blade 111 and knife spine 112
It is provided with frosting 113, the effect for facilitating cutting to detach can be played, improves cutting efficiency.
Embodiment 3
Fig. 4 show the metal cutter in the present embodiment, and metal cutter includes several blades 1, and the volume cost of blade is implemented
Example is 4, but is not limited to the quantity, can also be 3 or 5, protective device 3 is provided between blade 1 and rotation axis 2, is prevented
The power of rotation axis 2 is passed to blade 1 by protection unit 3, and makes blade 1 when 1 cutting hardness of blade is more than hard material 4 of setting hardness
The transmission failure between rotation axis 2.Blade 1 include cutter hub 11 and with 11 integrally formed knife ring 12 of cutter hub, knife ring 12 be suitable for set
It is located in rotation axis 2.Protective device 3 includes the fixing piece 31 of fixing cutter ring 12, and fixing piece 31 will be rotated radially across knife ring 12
Axis 2 is pushed against knife ring inner wall, is detached between fixing piece 31 and rotation axis 2 when blade 1 encounters hard material 4.In the present embodiment, knife ring
12 are equipped with screw hole, and fixing piece 31 is the screw that rotation axis 2 is pushed against to knife ring inner wall across screw hole.
The sliding groove 34 of circumferentially extending is offered in rotation axis 2, i.e., extends along the peripheral surface of the rotation axis 2, such as Fig. 5 institutes
Show, the bottom of sliding groove 34 include encounter with the plane 341 of 31 CONTACT WITH FRICTION of fixing piece and in blade 1 it is hard more than setting hardness
Expect the slope for making fixing piece 31 be detached with rotation axis 2 when 4 342.Protective device 3 includes the driving section being fixed on blade 1
Part 32 is provided with elastic conductive part 33 between two neighboring transmission parts 32, when cutting hard material 4, promotion of the blade 1 in hard material 4
Lower toward the deflection of anti-cut direction, simultaneously elasticity of compression conducting piece 33 is disengaged up to hard material 4, and elastic conductive part 33 resets blade 1
To its initial position.
In addition, blade 1 is also provided with evacuation cambered surface 114 on the cutter hub at rotation axis 2, for preventing blade 1
Interference is generated when anti-cut direction deflection.
Embodiment 4
Fig. 6 show the metal cutter in the present embodiment, and metal cutter includes several blades 1, and the volume cost of blade is implemented
Example is 4, but is not limited to the quantity, is provided with protective device 3 between blade 1 and rotation axis 2, and protective device 3 is by rotation axis 2
Power passes to blade 1, and makes to be driven between blade 1 and rotation axis 2 when 1 cutting hardness of blade is more than hard material 4 of setting hardness
Failure.Blade 1 include cutter hub 11 and with 11 integrally formed knife ring 12 of cutter hub, knife ring 12 be suitable for be set in rotation axis 2.Protection
Device 3 includes the transmission parts 32 being fixed in rotation axis 2, and transmission inclined-plane 5 is formed on transmission parts 32 and blade 1,
Include the second transmission inclined-plane for being molded over the first transmission inclined-plane of transmission parts 32 and being molded on blade 1, the first transmission is oblique
Face and the second transmission mutual frictional fit in inclined-plane, the rotation of rotation axis 2 pass to blade 1 by being driven inclined-plane 5, in the hard material of cutting
When 4, transmission inclined-plane 5 skids and transmission failure.Transmission parts 32 are L-shaped in the present embodiment, at this point, the inclined-plane on the left side shown in Fig. 6
To be driven inclined-plane 5.Certainly, transmission parts 32 or cuboid coordinate with the second transmission inclined-plane transmission on blade 1.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among the protection domain that variation is created still in the utility model.
Claims (10)
1. a kind of metal cutter is arranged in rotation axis (2), which is characterized in that the metal cutter includes several blades (1),
It is provided with protective device (3) between the blade (1) and the rotation axis (2), the protective device (3) is by the rotation axis
(2) power passes to the blade (1), and described in making when the blade (1) cutting hardness is more than the hard material (4) of setting hardness
Transmission failure between blade (1) and the rotation axis (2).
2. metal cutter according to claim 1, which is characterized in that the blade (1) include cutter hub (11) and with the knife
The integrally formed knife ring (12) of body (11), the knife ring (12) is suitable for being set in the rotation axis (2), on the knife ring (12)
Equipped with screw hole.
3. metal cutter according to claim 2, which is characterized in that the protective device (3) includes the fixed knife ring
(12) fixing piece (31), the fixing piece (31) are that the rotation axis (2) is pushed against the knife ring across the screw hole
The screw of inner wall, when the blade (1) encounters hard material (4) between the fixing piece (31) and rotation axis (2) skid or
Separation.
4. metal cutter according to claim 3, which is characterized in that offer the cunning of circumferentially extending on the rotation axis (2)
Dynamic slot (34), the bottom of the sliding groove (34) includes with the plane (341) of the fixing piece (31) CONTACT WITH FRICTION and described
Blade (1) encounters the slope for making the fixing piece (31) be detached with the rotation axis (2) when the hard material (4) more than setting hardness
(342)。
5. according to the metal cutter of claim 3 or 4, which is characterized in that the protective device (3) includes being fixed at institute
The elastic conductive part stated the transmission parts (32) on blade (1) and be arranged between the two neighboring transmission parts (32)
(33), the fixing piece (31) is pressed against each other across the transmission parts (32) with the rotation axis (2), and it is hard to be more than setting in cutting
When the hard material (4) of degree, the hard material (4) hinders the blade (1) to continue to rotate, and the fixing piece is beaten with the rotation axis (2)
It is sliding.
6. according to the metal cutter of claim 3 or 4, which is characterized in that the protective device (3) includes being fixed at institute
The transmission parts (32) on blade (1) are stated, elastic conductive part (33) is provided between the two neighboring transmission parts (32), cuts
When cutting hard material (4), the blade (1) deflects toward anti-cut direction under the promotion of the hard material (4) and compresses the bullet
Property conducting piece (33) until disengaged with the hard material (4), at the beginning of the elastic conductive part (33) resets the blade (1) to its
Beginning position.
7. metal cutter according to claim 6, which is characterized in that knife of the blade (1) at the rotation axis (2)
It being provided with evacuation cambered surface (114) on body, interference is generated when for preventing the anti-cut direction of the blade (1) from deflecting.
8. metal cutter according to claim 1 or claim 2, which is characterized in that the protective device (3) includes being fixed at institute
The transmission parts (32) in rotation axis (2) are stated, transmission inclined-plane (5) is formed on the transmission parts (32) and the blade (1),
The rotation of the rotation axis (2) passes to the blade (1) by the transmission inclined-plane (5), when cutting hard material (4),
The transmission inclined-plane (5) skids and transmission failure.
9. metal cutter according to claim 7, which is characterized in that the transmission parts (32) are L-shaped, several transmissions
Component (32) uniform ring is arranged around the rotation axis (2).
10. according to claim 1-4,7 any metal cutters, which is characterized in that at the non-blade of blade (1) cutting side
It is provided with frosting (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721814647.3U CN207900351U (en) | 2017-12-22 | 2017-12-22 | A kind of metal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721814647.3U CN207900351U (en) | 2017-12-22 | 2017-12-22 | A kind of metal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207900351U true CN207900351U (en) | 2018-09-25 |
Family
ID=63568640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721814647.3U Active CN207900351U (en) | 2017-12-22 | 2017-12-22 | A kind of metal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207900351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067678A (en) * | 2017-12-22 | 2018-05-25 | 成都市银隆新能源有限公司 | A kind of metal cutter |
-
2017
- 2017-12-22 CN CN201721814647.3U patent/CN207900351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067678A (en) * | 2017-12-22 | 2018-05-25 | 成都市银隆新能源有限公司 | A kind of metal cutter |
| CN108067678B (en) * | 2017-12-22 | 2023-12-19 | 成都格力钛新能源有限公司 | Metal cutter |
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