CN209773628U - sawtooth knife - Google Patents
sawtooth knife Download PDFInfo
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- CN209773628U CN209773628U CN201920377826.8U CN201920377826U CN209773628U CN 209773628 U CN209773628 U CN 209773628U CN 201920377826 U CN201920377826 U CN 201920377826U CN 209773628 U CN209773628 U CN 209773628U
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- sawtooth
- end surface
- cutter
- bottom end
- face
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- 238000005520 cutting process Methods 0.000 claims abstract description 29
- 238000004080 punching Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to the technical field of punching and cutting, in particular to a serrated knife, which comprises an upper cutter and a lower cutter, wherein the upper cutter and the lower cutter are matched for cutting plates; the lower cutter comprises a lower body and a lower edge part arranged on the lower body, and the lower edge part is provided with a plurality of lower sawteeth; the upper edge part and the lower edge part are oppositely arranged; the upper body is also provided with a bottom end surface, the bottom end surface is arranged adjacent to the surface where the upper edge part is positioned, and the bottom end surface is arc surface-shaped; the lower body is also provided with an upper end surface, the upper end surface is arranged adjacent to the surface where the lower blade part is positioned, and the upper end surface is planar; the lower end face of the upper cutter is arranged to be in an arc-shaped curved surface shape, and the upper end face of the lower cutter is designed to be in a plane shape, so that the purpose of gradually increasing cutting faces is achieved, the instant cutting impact force is reduced, and the purpose of reducing cutting noise is achieved.
Description
Technical Field
the utility model relates to a punching press cuts technical field, especially relates to a serrated knife.
background
Along with the development of industry, more and more five metals plate is produced and processed into required product, in the actual production process, at first need cut into required specification with great specification sheet material, reentrant shaping process, this kind of cutting process uses the press die to accomplish on the punch press usually, but in the stamping process, produces great blanking power, leads to the blanking noise great, causes environmental pollution, influences production workman's healthy, still influences other personnel's normal work simultaneously.
Disclosure of Invention
Big, the big problem of blanking noise of blanking power that produces in order to overcome the stamping process that exists among the prior art, the utility model aims to provide a serrated knife reduces the blanking power in the stamping process, reaches the purpose that reduces the blanking noise.
In order to achieve the above purpose, the technical scheme of the utility model is that:
A serrated knife comprises an upper cutter and a lower cutter, wherein the upper cutter and the lower cutter are matched for cutting a plate, the upper cutter comprises an upper body and an upper edge part arranged on the upper body, and the upper edge part is provided with a plurality of upper serrations;
the lower cutter comprises a lower body and a lower edge part arranged on the lower body, and the lower edge part is provided with a plurality of lower sawteeth;
the upper edge part and the lower edge part are oppositely arranged;
the upper body is also provided with a bottom end surface, the bottom end surface is arranged adjacent to the surface where the upper edge part is located, and the bottom end surface is arc-surface-shaped;
the lower body is further provided with an upper end face, the upper end face is adjacent to the face where the lower edge part is located, and the upper end face is planar.
Furthermore, the bottom end surface is in an arc shape with a concave inner part, and the vertical distance from the two end parts of the bottom end surface in the length direction to the upper end surface of the lower cutter is smaller than the vertical distance from the other parts of the bottom end surface in the length direction to the upper end surface of the lower cutter.
Furthermore, the bottom end surface is in an outward convex arc shape, and the vertical distance from the two end parts of the bottom end surface in the length direction to the upper end surface of the lower cutter is greater than the vertical distance from the other parts of the bottom end surface in the length direction to the upper end surface of the lower cutter.
furthermore, every go up the sawtooth and be trapezoidal form, every the sawtooth is trapezoidal form down, go up the sawtooth with the sawtooth setting is crisscross down.
Furthermore, every go up the sawtooth and be the arcwall form, every lower sawtooth is the arcwall form, go up the sawtooth with lower sawtooth sets up in a staggered way.
Further, every go up the sawtooth and be the triangle-shaped that three summit was the circular arc excessively tangent, every the sawtooth is three summit and is the triangle-shaped that the circular arc excessively tangent down, go up the sawtooth with sawtooth staggered arrangement down.
furthermore, every go up the sawtooth and be the rectangle form that four summits are tangent circular arc, every the sawtooth is the rectangle form that four summits are tangent circular arc down, go up the sawtooth with the sawtooth setting is crisscross down.
The utility model has the advantages that: the lower end face of the upper cutter is set to be in an arc-shaped curved surface shape, the upper end face of the lower cutter is designed to be in a plane shape, the purpose that the contact surface of a cutting surface is changed from small to large is achieved, the instant cutting impact force is reduced, and the purpose of reducing cutting noise is achieved.
Drawings
fig. 1 is a schematic three-dimensional structure of a first embodiment of the present invention;
Fig. 2 is a schematic front view structure of the first embodiment of the present invention;
Fig. 3 is a schematic left side view structure of the first embodiment of the present invention;
fig. 4 is a schematic top view structure of the first embodiment of the present invention;
fig. 5 is a schematic perspective structure view of a second embodiment of the present invention;
Fig. 6 is a schematic front view structure of a second embodiment of the present invention;
Fig. 7 is a schematic left side view structure of a second embodiment of the present invention;
Fig. 8 is a schematic top view of the second embodiment of the present invention;
Fig. 9 is a schematic top view of a third embodiment of the present invention;
Fig. 10 is a schematic top view of a fourth embodiment of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.
The first embodiment.
Referring to fig. 1 and 4, a serrated knife of the present invention includes an upper cutter 1 and a lower cutter 2, the upper cutter 1 and the lower cutter 2 are used for cutting a plate, the upper cutter 1 includes an upper body 10 and an upper blade 11 disposed on the upper body 10, the upper blade 11 is provided with a plurality of upper serrations 111;
the lower cutter 2 comprises a lower body 20 and a lower blade part 21 arranged on the lower body 20, and the lower blade part 21 is provided with a plurality of lower saw teeth 211;
The upper blade part 11 is arranged opposite to the lower blade part 21;
The upper body 10 is further provided with a bottom end surface 101, the bottom end surface 101 is arranged adjacent to the surface where the upper blade part 11 is located, and the bottom end surface 101 is arc-surface-shaped;
The lower body 20 is further provided with an upper end surface 201, the upper end surface 201 is adjacent to the surface where the lower blade 21 is located, and the upper end surface 201 is planar.
specifically, in this embodiment, the upper cutter 1 is installed on the upper die base of the external punching die, the lower cutter 2 is installed on the lower die base of the external punching die, the upper cutter 1 processes the upper edge portion 11, the lower cutter 2 processes the lower edge portion 21, and the bottom end surface 101 of the upper cutter 1 is processed into an arc curved surface shape, so that when the upper die base of the stamping die drives the upper cutter 1 to face the lower cutter 2 of the lower die base, the contact surface between the upper cutter 1 and the lower cutter 2 is changed from small to big, finally the whole upper cutter 1 is contacted with the whole lower cutter 2 to finish the cutting work, the upper blade part 11 is processed into a shape with a plurality of upper saw teeth 111, the lower blade part 21 is processed into a shape with a plurality of lower saw teeth 211, the edge of the cut plate is in a zigzag shape, so that the purpose of reducing the pressing amount during the forming of subsequent products is realized, the weight of forming pressing is reduced, and the purpose of reducing the production and transportation cost is achieved.
the bottom end face 101 of the upper cutter 1 is set to be in an arc-shaped curved surface shape, and the upper end face 201 of the lower cutter is designed to be in a plane shape, so that the purpose that the contact surface of a cutting surface is changed from small to large is achieved, the instant cutting impact force is reduced, and the purpose of reducing cutting noise is achieved.
the bottom end face 101 is in an inwards concave arc shape, the vertical distance from the end part of the bottom end face 101 to the upper end face 201 of the lower cutter 2 is smaller than the vertical distance from the middle part of the bottom end face 101 to the upper end face 201 of the lower cutter 2, and according to the thickness of a plate to be cut and the width of the plate, a cutting method is set, wherein two ends of the plate are firstly contacted and cut and gradually face the middle of the plate to be contacted and cut, so that the production cutting noise is reduced.
Every go up sawtooth 111 and be the arc form, every lower sawtooth 211 is the arc form, go up sawtooth 111 with sawtooth 211 crisscross setting down adopts suitable zigzag according to the different requirements of production and processing, reaches the purpose of nimble production. .
example two.
Referring to fig. 5 and 8, the serrated knife of the present invention includes an upper cutter 1 and a lower cutter 2, the upper cutter 1 and the lower cutter 2 are used for cutting a plate, the upper cutter 1 includes an upper body 10 and an upper blade 11 disposed on the upper body 10, the upper blade 11 is provided with a plurality of upper serrations 111;
The lower cutter 2 comprises a lower body 20 and a lower blade part 21 arranged on the lower body 20, and the lower blade part 21 is provided with a plurality of lower saw teeth 211;
the upper blade part 11 is arranged opposite to the lower blade part 21;
The upper body 10 is further provided with a bottom end surface 101, the bottom end surface 101 is arranged adjacent to the surface where the upper blade part 11 is located, and the bottom end surface 101 is arc-surface-shaped;
The lower body 20 is further provided with an upper end surface 201, the upper end surface 201 is adjacent to the surface where the lower blade 21 is located, and the upper end surface 201 is planar.
specifically, in this embodiment, the upper cutter 1 is installed on the upper die base of the external punching die, the lower cutter 2 is installed on the lower die base of the external punching die, the upper cutter 1 processes the upper edge portion 11, the lower cutting knife 2 is processed with a lower edge part 21, the bottom end surface 101 of the upper cutting knife 1 is processed into an arc curved surface shape, when an upper die holder of the stamping die drives an upper cutter 1 to face a lower cutter 2 of a lower die holder, the contact surface of the upper cutter 1 and the lower cutter 2 is changed from small to large, finally, the whole upper cutter 1 is contacted with the whole lower cutter 2 to finish the cutting work, an upper blade part 11 is processed into a shape with a plurality of upper sawteeth 111, a lower blade part 21 is processed into a shape with a plurality of lower sawteeth 211, the edge of the cut plate is in a zigzag shape, so that the purpose of reducing the pressing amount during the forming of subsequent products is realized, the weight of forming pressing is reduced, and the purpose of reducing the production and transportation cost is achieved.
The bottom end face 101 of the upper cutter 1 is set to be in an arc-shaped curved surface shape, and the upper end face 201 of the lower cutter is designed to be in a plane shape, so that the purpose that the contact surface of a cutting surface is changed from small to large is achieved, the instant cutting impact force is reduced, and the purpose of reducing cutting noise is achieved.
The bottom end face 101 is in an outward convex arc shape, the vertical distance from the end part of the bottom end face 101 to the upper end face 201 of the lower cutter 2 is larger than the vertical distance from the middle part of the bottom end face 101 to the upper end face 201 of the lower cutter 2, according to the thickness of a plate to be cut and the width of the plate, the middle part of the upper cutter 1 is firstly contacted with the middle part of the lower cutter 2 for cutting, and extends to two sides in a radial shape, so that the contact area and the cutting area are gradually increased, the cutting impact force is reduced, and the production cutting noise is reduced.
Each go up sawtooth 111 is trapezoidal form, every lower sawtooth 211 is trapezoidal form, go up sawtooth 111 with lower sawtooth 211 sets up in a staggered way. Specifically, the lower sawtooth 211 is trapezoidal, and circular arc transition is adopted at each corner, and a proper sawtooth shape is adopted according to different production and processing, so that the purpose of flexible production is achieved.
example three.
Referring to fig. 9, a difference between the first embodiment and the first embodiment is that each of the upper saw teeth 111 is in a triangular shape with three vertexes being excessively tangent to arcs, each of the lower saw teeth 211 is in a triangular shape with three vertexes being excessively tangent to arcs, and the upper saw teeth 111 and the lower saw teeth 211 are arranged in a staggered manner.
example four.
referring to fig. 10, the difference between the present embodiment and the second embodiment is that each of the upper saw teeth 111 is in a rectangular shape with four vertices being tangent arcs, each of the lower saw teeth 211 is in a rectangular shape with four vertices being tangent arcs, the upper saw teeth 111 and the lower saw teeth 211 are arranged in a staggered manner, and according to practical situations, the saw teeth are designed and processed into a rectangular shape with four vertices being tangent arcs, which is convenient for different customer requirements.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (7)
1. the utility model provides a serrated knife, includes cutter (1) and lower cutter (2), go up cutter (1) and lower cutter (2) cooperation and be used for cutting plate, its characterized in that: the upper cutter (1) comprises an upper body (10) and an upper blade part (11) arranged on the upper body (10), and the upper blade part (11) is provided with a plurality of upper sawteeth (111);
The lower cutter (2) comprises a lower body (20) and a lower blade part (21) arranged on the lower body (20), and the lower blade part (21) is provided with a plurality of lower sawteeth (211);
The upper blade part (11) and the lower blade part (21) are arranged oppositely;
The upper body (10) is further provided with a bottom end surface (101), the bottom end surface (101) is adjacent to the surface where the upper edge part (11) is located, and the bottom end surface (101) is arc-surface-shaped;
the lower body (20) is further provided with an upper end face (201), the upper end face (201) is adjacent to the face where the lower blade part (21) is located, and the upper end face (201) is planar.
2. Serrated knife according to claim 1, characterized in that: the bottom end surface (101) is in an inwards concave arc shape, and the vertical distance from two end parts of the length direction of the bottom end surface (101) to the upper end surface (201) of the lower cutter (2) is smaller than the vertical distance from other parts of the length direction of the bottom end surface (101) to the upper end surface (201) of the lower cutter (2).
3. Serrated knife according to claim 1, characterized in that: the bottom end surface (101) is in an outer convex arc shape, and the vertical distance from two end parts of the length direction of the bottom end surface (101) to the upper end surface (201) of the lower cutter (2) is greater than the vertical distance from other parts of the length direction of the bottom end surface (101) to the upper end surface (201) of the lower cutter (2).
4. Serrated knife according to any of claims 1 to 3, characterized in that: every go up sawtooth (111) and be trapezoidal form, every lower sawtooth (211) is trapezoidal form, go up sawtooth (111) with sawtooth (211) are crisscross to be set up down.
5. serrated knife according to any of claims 1 to 3, characterized in that: every go up sawtooth (111) and be the arcwall form, every lower sawtooth (211) is the arcwall form, go up sawtooth (111) with sawtooth (211) crisscross the setting down.
6. Serrated knife according to any of claims 1 to 3, characterized in that: every go up sawtooth (111) and be three summits and be the excessive tangent triangle-shaped of circular arc, every sawtooth (211) are three summits and are the excessive tangent triangle-shaped of circular arc down, go up sawtooth (111) with sawtooth (211) staggered arrangement down.
7. Serrated knife according to any of claims 1 to 3, characterized in that: every go up sawtooth (111) and be four summits and be the rectangle form of tangent circular arc, every sawtooth (211) are down the rectangle form that four summits are tangent circular arc, go up sawtooth (111) with sawtooth (211) staggered arrangement down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920377826.8U CN209773628U (en) | 2019-03-22 | 2019-03-22 | sawtooth knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920377826.8U CN209773628U (en) | 2019-03-22 | 2019-03-22 | sawtooth knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209773628U true CN209773628U (en) | 2019-12-13 |
Family
ID=68799270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920377826.8U Active CN209773628U (en) | 2019-03-22 | 2019-03-22 | sawtooth knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209773628U (en) |
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2019
- 2019-03-22 CN CN201920377826.8U patent/CN209773628U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 30, South Outer Ring Road, Xiegang Town, Dongguan City, Guangdong Province 523000 Patentee after: Guangdong Ruihui Intelligent Technology Co.,Ltd. Country or region after: China Address before: No.12, Baisha Chuangxing Road, Humen Town, Dongguan City, Guangdong Province, 523000 Patentee before: Guangdong Ruihui Intelligent Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |