CN219275939U - Circular knife assembly - Google Patents
Circular knife assembly Download PDFInfo
- Publication number
- CN219275939U CN219275939U CN202320623589.5U CN202320623589U CN219275939U CN 219275939 U CN219275939 U CN 219275939U CN 202320623589 U CN202320623589 U CN 202320623589U CN 219275939 U CN219275939 U CN 219275939U
- Authority
- CN
- China
- Prior art keywords
- circular
- knife assembly
- boss
- cutter
- assembly according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007423 decrease Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
- B26D7/2621—Means for mounting the cutting member for circular cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B50/20—Cutting sheets or blanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The utility model discloses a circular knife assembly, which comprises a columnar knife holder, wherein a through shaft hole is formed in the axial direction of the knife holder, a circular knife is sleeved on the outer wall of the knife holder, an annular clamping groove is formed in the circumferential direction of the knife holder, and a clamp is arranged in the clamping groove; an annular boss is arranged along the circumferential direction of the tool apron; the circular cutter is arranged between the clamp and the boss; the boss comprises a top surface inclined towards the direction of the circular cutter, an elastic O-shaped gasket is sleeved on the cutter holder, and the O-shaped gasket is positioned on the top surface. The beneficial effects of the utility model are as follows: the O-shaped gasket is sleeved between the boss and the circular cutter through win-win fit, so that the circular cutter is extruded to be fixed under the combined action of the O-shaped gasket and the clamp, and the circular cutter is prevented from rotating relatively by means of high friction force between the O-shaped gasket and the circular cutter and the boss.
Description
Technical Field
The utility model relates to the field of papermaking, in particular to a circular knife assembly.
Background
A slitter is a mechanical device that slit wide paper, mica tape, or film into multiple strips of narrow width material. The circular knife assembly of the existing dividing and cutting machine is structurally characterized in that a circular knife blade is rotatably sleeved on a knife holder, one side of the circular knife blade is provided with a clamp, and the other side of the circular knife blade is provided with a disc-shaped steel spring to jointly clamp the knife blade. The blade is abutted against the tool apron by the elasticity of the steel spring, so that the blade and the tool apron do not rotate relatively. When the diameter of the steel spring is too large, the effect of fixing the blade is reduced, the blade is easy to rotate relatively, and the cutting precision is low; too small a diameter of the steel spring makes it difficult to press the steel spring into the tool holder and simultaneously to press the steel spring apart easily. When the steel spring fixed blade is used, the blade rotates fast, so that the blade and the steel spring are easy to rotate relatively, the blade and the steel spring are worn, and the cutting precision is also affected. To solve this problem, see the applicant's prior art 202210789819.5, which adopts a scheme of fixing the blade by a snap spring and an elastic washer, pressing the blade by the elastic washer, and fixing the blade by friction between the elastic washer and the blade. The elastic washer is elastic, the blade cannot be worn out in the process of high-speed rotation, the cost is saved, the clamp spring is clamped on the cutter seat shaft, the elastic washer, the blade and the cutter base are always in contact, the blade is fixed, the blade is prevented from swinging in the process of rotation, meanwhile, the accuracy of the rotating and circling of the blade is high, and the phenomenon of losing the circle is not easy to occur. In the actual use process, the blade is stressed to move axially, so that the elastic gasket is extruded, and the service life of the elastic gasket is greatly reduced.
Disclosure of Invention
The utility model aims to provide a circular knife assembly which solves or partially solves the problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the circular knife assembly comprises a columnar knife holder, a through shaft hole is formed in the axis direction of the knife holder, a circular knife is sleeved on the outer wall of the knife holder, an annular clamping groove is formed in the circumferential direction of the knife holder, and a clamp is arranged in the clamping groove; an annular boss is arranged along the circumferential direction of the tool apron; the circular cutter is arranged between the clamp and the boss; the boss comprises a top surface inclined towards the direction of the circular cutter, an elastic O-shaped gasket is sleeved on the cutter holder, and the O-shaped gasket is positioned on the top surface.
Preferably, the thickness of the circular cutter gradually decreases from inside to outside along the radial direction thereof.
Preferably, the boss comprises an inner side surface and an outer side surface, and the top surface is connected with the inner side surface and the outer side surface; the inner side faces the circular cutter, and the inner side is matched with the circular cutter in shape.
Preferably, an arc-shaped connecting surface is arranged between the top surface and the inner side surface and between the top surface and the outer side surface.
Preferably, the included angle between the top surface and the axis of the tool apron is 20-40 degrees.
Preferably, the boss and the tool holder are integrally formed.
Preferably, the cross section of the O-shaped gasket is circular.
Preferably, the O-ring is made of silicone or rubber.
Preferably, the clip is made of a resilient metal.
Preferably, an opening groove penetrating along the radial direction of the tool apron is formed in the inner side of the tool apron along the circumferential direction of the tool apron, a threaded hole is formed in the radial direction of the tool apron corresponding to the pressing bar, a fastening screw is arranged in the threaded hole in a threaded manner, and the front end of the fastening screw abuts against the pressing bar.
The beneficial effects of the utility model are as follows: the O-shaped gasket is sleeved between the boss and the circular cutter through win-win fit, so that the circular cutter is extruded to be fixed under the combined action of the O-shaped gasket and the clamp, and the circular cutter is prevented from rotating relatively by means of higher friction force between the O-shaped gasket, the circular cutter and the boss; the O-shaped gasket is positioned on the top surface and is pressed by the inclined surface of the O-shaped gasket to be abutted against the circular cutter; when the circular cutter moves along the axial direction, the O-shaped gasket is stressed to move outwards, so that avoidance is performed, and damage is avoided. The boss is provided with an inclined surface structure matched with the shape of the circular cutter, and can be in surface contact with the circular cutter, so that abrasion is reduced, and the service life is prolonged.
Drawings
FIG. 1 is a front view of a tool holder;
FIG. 2 is a sectional view taken along E-E in FIG. 1;
FIG. 3 is a D-D sectional view of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
figure 5 is a schematic view of the position of figure 4 with the addition of a circular cutter and an O-ring.
Detailed Description
The technical scheme of the utility model is further described in detail below with reference to the specific embodiments.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "inner", "outer", "upper", "lower", "horizontal", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 5, the circular knife assembly of the present utility model comprises a cylindrical knife holder 10, a shaft hole 12 passing through the knife holder 10 along the axial direction of the knife holder 10, a circular knife 14 sleeved on the outer wall of the knife holder 10, an annular clamping groove 16 arranged along the circumferential direction of the knife holder 10, and a clamp (not shown) arranged in the clamping groove 16; an annular boss 18 is arranged along the circumferential direction of the tool holder 10; the circular cutter 14 is arranged between the clamp and the boss 18; the boss 18 includes a top surface 181 inclined toward the circular cutter 14, the holder 10 is sleeved with an elastic O-ring 20, and the O-ring 20 is located on the top surface 181.
Part of the structure of the present utility model, for example, a clip, a three-dimensional structure, or the like can be referred to in the applicant's prior art 202210789819.5.
The thickness of the circular cutter 14 gradually decreases from the inside to the outside in the radial direction thereof.
The angle between the top surface 181 and the axis of the holder 10 is 20-40 deg., preferably 28 deg..
The boss 18 is integrally formed with the tool holder 10. The O-ring 20 is circular in cross-section. The O-ring 20 is made of silicone or rubber. The yoke is made of a resilient metal to compress the circular cutter 14 by means of a resilient force.
The inner side of the tool holder 10 is provided with an opening groove 22 penetrating along the radial direction along the circumferential direction thereof to form a pressing bar 24, a threaded hole 26 is arranged along the radial direction of the tool holder 10 corresponding to the position of the pressing bar 24, a fastening screw (not shown) is arranged in the threaded hole 26 in a threaded manner, and the front end of the fastening screw is abutted against the pressing bar 24.
The working principle is that the tool holder 10 is arranged on a cutter shaft (not shown) and is fixed by fastening a screw extrusion pressing bar 24.
The circular cutter 14 is sleeved on the cutter holder 10, one end of the circular cutter is fixed through an open clamp, and the other end of the circular cutter is fixed through an O-shaped washer 20.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a circular knife assembly, includes cylindricality blade holder, follows the axis direction of blade holder is provided with the shaft hole that runs through, the cover is equipped with circular cutter, its characterized in that on the blade holder outer wall: an annular clamping groove is formed along the circumferential direction of the tool apron, and a clamp is arranged in the clamping groove; an annular boss is arranged along the circumferential direction of the tool apron; the circular cutter is arranged between the clamp and the boss; the boss comprises a top surface inclined towards the direction of the circular cutter, an elastic O-shaped gasket is sleeved on the cutter holder, and the O-shaped gasket is positioned on the top surface.
2. A circular knife assembly according to claim 1, wherein: the thickness of the circular cutter gradually decreases from inside to outside along the radial direction of the circular cutter.
3. A circular knife assembly according to claim 2, wherein: the boss comprises an inner side surface and an outer side surface, and the top surface is connected with the inner side surface and the outer side surface; the inner side faces the circular cutter, and the inner side is matched with the circular cutter in shape.
4. A circular knife assembly according to claim 3, wherein: the top surface, the inner side surface and the outer side surface are provided with arc-shaped connecting surfaces.
5. A circular knife assembly according to claim 1, wherein: the included angle between the top surface and the axis of the tool apron is 20-40 degrees.
6. A circular knife assembly according to claim 1, wherein: the boss and the tool apron are integrally formed.
7. A circular knife assembly according to claim 1, wherein: the cross section of the O-shaped gasket is circular.
8. A circular knife assembly according to claim 1, wherein: the O-shaped gasket is made of silica gel or rubber.
9. A circular knife assembly according to claim 1, wherein: the clip is made of a resilient metal.
10. A circular knife assembly according to claim 1, wherein: the inner side of the tool apron is provided with an opening groove penetrating along the radial direction of the tool apron along the circumferential direction of the tool apron so as to form a pressing bar, a threaded hole is formed along the radial direction of the tool apron corresponding to the pressing bar, a fastening screw is arranged in the threaded hole in a threaded manner, and the front end of the fastening screw abuts against the pressing bar.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320623589.5U CN219275939U (en) | 2023-03-27 | 2023-03-27 | Circular knife assembly |
| DE202023105531.1U DE202023105531U1 (en) | 2023-03-27 | 2023-09-22 | Circular knife arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320623589.5U CN219275939U (en) | 2023-03-27 | 2023-03-27 | Circular knife assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219275939U true CN219275939U (en) | 2023-06-30 |
Family
ID=86934478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320623589.5U Active CN219275939U (en) | 2023-03-27 | 2023-03-27 | Circular knife assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219275939U (en) |
| DE (1) | DE202023105531U1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4249109A1 (en) | 2020-11-20 | 2023-09-27 | Japan Science and Technology Agency | Micro two-phase liquid droplet generation device |
-
2023
- 2023-03-27 CN CN202320623589.5U patent/CN219275939U/en active Active
- 2023-09-22 DE DE202023105531.1U patent/DE202023105531U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202023105531U1 (en) | 2023-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |