CN109291128B - Knife rest and slicer - Google Patents
Knife rest and slicer Download PDFInfo
- Publication number
- CN109291128B CN109291128B CN201811487641.9A CN201811487641A CN109291128B CN 109291128 B CN109291128 B CN 109291128B CN 201811487641 A CN201811487641 A CN 201811487641A CN 109291128 B CN109291128 B CN 109291128B
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- China
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- pressing plate
- tool
- clamping part
- top block
- holder
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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
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food-Manufacturing Devices (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of slicing machines, and provides a knife rest and a slicing machine. A tool rest comprises a support, a tool apron and a pressing plate, wherein the tool apron is installed on the support, a tool installation surface is formed on the tool apron, and the pressing plate is arranged on one side of the tool installation surface of the tool apron; one end of the pressing plate is wedge-shaped to form a first clamping part, one end of the tool apron is wedge-shaped to form a second clamping part, and a blade is placed between the first clamping part and the second clamping part; the pressing plate can rotate relative to the tool apron, and when the pressing plate rotates relative to the tool apron, the first clamping portion can be close to the second clamping portion, so that the placed blade is clamped. The tool rest can well clamp the blade, and the clamping stability in the cutting process is ensured. The invention also provides a slicing machine.
Description
Technical Field
The invention relates to the technical field of slicing machines, in particular to a knife rest and a slicing machine.
Background
The microtome is an instrument for cutting thin and uniform pieces of tissue, which are supported by hard paraffin or other substances, and the blade is clamped by a knife holder. During the cutting process, if the blade is not stably clamped, the thickness and the quality of the cut sheet are directly influenced.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned disadvantages of the prior art and providing a knife holder and a microtome.
In order to solve the technical problems, the invention adopts the following technical scheme. A tool rest comprises a support, a tool apron and a pressing plate, wherein the tool apron is installed on the support, a tool installation surface is formed on the tool apron, and the pressing plate is arranged on one side of the tool installation surface of the tool apron;
one end of the pressing plate is wedge-shaped to form a first clamping part, one end of the tool apron is wedge-shaped to form a second clamping part, and a blade is placed between the first clamping part and the second clamping part; the pressing plate can rotate relative to the tool apron, and when the pressing plate rotates relative to the tool apron, the first clamping portion can be close to the second clamping portion, so that the placed blade is clamped.
Preferably, a blade cushion block is arranged on the tool apron and close to the second clamping portion.
Preferably, a cushion block placing groove for placing the cushion block of the blade is formed in the cutter holder close to the second clamping portion.
Preferably, a knife protection assembly is arranged on the pressure plate.
Preferably, the knife protection assembly comprises a knife protection device, the knife protection device comprises a connecting section and a knife protection section, the connecting section is rotatably connected with the pressing plate, and when the connecting section rotates relative to the pressing plate, the knife protection section can move towards the first clamping part and cover the placed blade.
Preferably, the knife protection assembly further comprises a knife withdrawing mechanism and an elastic resetting mechanism.
Preferably, the tool apron is connected with the pressing plate through a rotating shaft;
a mounting hole is formed in the cutter mounting surface of the cutter holder, and a mounting column matched with the mounting hole is arranged on the pressing plate;
the mounting post is provided with a horizontal through hole, the tool apron is provided with a positioning hole communicated with the mounting hole, and the rotating shaft penetrates through the positioning hole and the horizontal through hole.
Preferably, an ejector block and a control assembly are arranged between the tool apron and the pressure plate;
and a top block mounting groove is formed in the cutter mounting surface of the cutter holder, one end of the top block abuts against the pressing plate, the other end of the top block is arranged in the top block mounting groove, and the control assembly is used for controlling the top block to move in the top block mounting groove along the depth direction of the top block mounting groove.
Preferably, the control assembly comprises a first eccentric rod located in the top block mounting groove and abutting against the top block.
Preferably, the support is connected with the tool apron in a sliding manner.
The invention also provides a slicing machine which comprises the knife rest.
The invention has the beneficial effects that:
according to the tool rest, the blade is clamped through the first clamping part of the pressing plate and the second clamping part of the tool apron, and the first clamping part and the second clamping part are both wedge-shaped, so that the blade can be well clamped, and the clamping stability in the cutting process is ensured.
The slicer of the present invention also has the advantages described above.
Drawings
Fig. 1 is a perspective view of a tool holder according to a first embodiment of the present invention.
Fig. 2 is a front view schematically showing a tool holder according to a first embodiment of the present invention.
Fig. 3 is a schematic view of an exploded structure of a tool holder according to a first embodiment of the present invention.
Fig. 4 is a perspective view of a holder of a tool holder according to a first embodiment of the present invention.
Fig. 5 is a perspective view of a holder and guard assembly of a tool holder according to a first embodiment of the present invention.
Fig. 6 is a sectional view taken along line a-a in fig. 2.
Fig. 7 is a perspective view of a rotary guard assembly for a tool holder according to an embodiment of the invention.
Detailed Description
For those skilled in the art to more clearly understand the objects, technical solutions and advantages of the present invention, the following description will be further provided in conjunction with the accompanying drawings and examples.
Example one
As shown in fig. 1 and 2, a tool holder according to an embodiment of the present invention includes a support 1, a tool holder 2, and a pressing plate 3, where the tool holder 2 is mounted on the support 1. In some embodiments, the holder 2 is fixedly mounted on the bracket 1, and in some preferred embodiments, the bracket 1 and the holder 2 are preferably slidably connected, so that the flexibility of the device is improved. In some specific embodiments, a slide rail 11 is provided on the support 1, and a sliding portion 29 matching with the slide rail 11 is provided on the tool holder 2; it will be appreciated that the sliding portions 29 are matching grooves if the slide rail 11 is convex and that the sliding portions 29 are matching sliding blocks if the slide rail 11 is concave. The holder 2 is slidable relative to the holder 1 in the direction of arrow F.
Referring to fig. 3 and 4, a tool mounting surface 21 is formed on the tool holder 2, and a pressing plate 3 is disposed on one side of the tool mounting surface 21 of the tool holder 2. Referring to fig. 4, one end of the pressing plate 3 is wedge-shaped to form a first clamping portion 31, one end of the tool holder 2 is wedge-shaped to form a second clamping portion 22, and a blade is placed between the first clamping portion 31 and the second clamping portion 22; the pressing plate 3 is rotatable relative to the holder 2, and when the pressing plate 3 is rotated relative to the holder 2, the first clamping portion 31 is moved toward the second clamping portion 22, thereby clamping the inserted insert. The blade is clamped by the first clamping part 31 of the pressing plate 3 and the second clamping part 22 of the cutter holder 2, the first clamping part 31 and the second clamping part 22 are both wedge-shaped, the blade can be clamped well, and the clamping stability in the cutting process is guaranteed.
In some preferred embodiments, the insert pad 4 is disposed on the tool holder 2 near the second clamping portion 22, so as to further improve the clamping stability and realize compatibility of one tool holder with multiple inserts. Preferably, a pad placing groove 201 for placing the blade pad 4 is formed on the tool holder 2 near the second clamping portion 22. The blade cushion block 4 can be embedded in the device and can not be loosened during the operation of the device. Preferably, the pressing plate 3 is provided with an auxiliary placing groove 301 close to the first clamping portion 31, that is, the pressing plate is embedded in the cushion placing groove 201 and the auxiliary placing groove 301, so that the stability is better. It can be understood that, when only the cushion placing groove 201 is provided, the size of the blade cushion 4 matches with the cushion placing groove 201; when the cushion placing groove 201 and the auxiliary placing groove 301 are formed, the size of the blade cushion 4 is matched with the placing space formed by the cushion placing groove 201 and the auxiliary placing groove 301 together.
Preferably, the tool holder 2 and the press plate 3 are connected by a rotating shaft 5. A mounting hole 211 is formed in the tool mounting surface 21 of the tool apron 2, and referring to fig. 5, a mounting post 32 matched with the mounting hole 211 is arranged on the pressing plate 3; it will be appreciated that, generally, the number of the mounting holes 211 and the mounting posts 32 is the same, and that, as shown in the figure, three mounting holes 211 are provided, and correspondingly, three mounting posts 32 are provided. The mounting post 32 is provided with a horizontal through hole 321, the tool holder 2 is provided with a positioning hole 212 penetrating through the mounting hole 211, and the rotating shaft 5 penetrates through the positioning hole 212 and the horizontal through hole 321. Therefore, the pressing plate 3 can rotate relative to the tool apron 2, and flexibility and stability are achieved.
Referring to fig. 6, further, a top block 7 and a control assembly 6 are disposed between the tool holder 2 and the press plate 3; the tool mounting surface 21 of the tool holder 2 is provided with a top block mounting groove 213, one end of the top block 7 abuts against the pressing plate 3, the other end of the top block is arranged in the top block mounting groove 213, and the control component 6 is used for controlling the top block 7 to move in the top block mounting groove 213 along the depth direction of the top block mounting groove 213. When the top block 7 moves, the pressing plate 3 can be driven to rotate. Preferably, the control assembly 6 includes a first eccentric rod 61 located in the top block installation groove 213 and abutting against the top block 7, and specifically, the first eccentric rod 61 is located below the top block 7, and when the first eccentric rod 61 rotates, the top block 7 can be driven to move. For ease of operation, the control assembly 6 further comprises a first control handle 62 connected to the first eccentric rod 61. In some preferred embodiments, a locking screw is mounted on the top block 7, and the angle of the eccentric locking of the first eccentric rod 61 is adjusted by adjusting the locking screw.
In order to safely protect the blade, as shown in fig. 5, a blade guard assembly 8 is preferably provided on the pressing plate 3. Referring to fig. 7, the knife guard assembly 8 further includes a knife guard 81, the knife guard 81 includes a connecting section 811 and a knife guard section 812, the connecting section 811 is rotatably connected to the pressing plate 3, and when the connecting section 811 rotates relative to the pressing plate 3, the knife guard section 812 can move toward the first clamping portion 31 and cover the placed blade. I.e. the guard assembly 8 is rotatable according to arrow R. Specifically, the connecting section 811 and the side edge of the pressing plate 3 are connected by a screw pin. Preferably, the knife guard assembly 8 further comprises a knife retracting mechanism 82 and a resilient return mechanism 83. The retracting mechanism 82 moves the blade, and the elastic return mechanism 83 returns the retracting mechanism 82. Specifically, the retracting mechanism 82 is connected to the elastic resetting mechanism 83, the elastic resetting mechanism 83 includes an elastic member, the retracting mechanism 82 moves toward the elastic resetting mechanism 83 to drive the blade to move, and the elastic member is compressed to provide a restoring force to reset the retracting mechanism 82. It will be appreciated that the resilient return mechanism 83 also includes a protective housing for housing and protecting the resilient member.
In some preferred embodiments, as shown in fig. 6, a T-shaped locking block 13 is disposed on the holder 1, a T-shaped groove 28 is disposed on the holder 2, the T-shaped locking block 13 is clamped in the T-shaped groove 28, and locking between the holder 1 and the holder 2 is achieved by the T-shaped locking block 13 and the T-shaped groove 28. Preferably, the bracket 1 is provided with a second eccentric rod 14, and the second eccentric rod 14 drives the T-shaped locking block 13 to move up and down when rotating eccentrically, so that the tool apron 2 can be loosened and locked. For ease of operation, the second eccentric lever 14 is connected to a second control handle 16. The bracket 1 is also provided with a locking screw, and the relative position of the locking screw and the T-shaped locking block 13 influences the locking angle of the second eccentric rod 14. Preferably, a scale 17 is provided on the side of the holder 1.
Example two
The second embodiment of the present invention further provides a microtome including the knife holder as described in the first embodiment.
Claims (10)
1. A tool holder, characterized by: the tool rest is mounted on the support, a tool mounting surface is formed on the tool rest, and the pressing plate is arranged on one side of the tool mounting surface of the tool rest;
one end of the pressing plate is wedge-shaped to form a first clamping part, one end of the tool apron is wedge-shaped to form a second clamping part, and a blade is placed between the first clamping part and the second clamping part; the pressing plate can rotate relative to the tool apron, and when the pressing plate rotates relative to the tool apron, the first clamping part can be close to the second clamping part, so that the placed blade is clamped;
the cutter holder is connected with the pressing plate through a rotating shaft; a mounting hole is formed in the cutter mounting surface of the cutter holder, and a mounting column matched with the mounting hole is arranged on the pressing plate; a horizontal through hole is formed in the mounting column, a positioning hole communicated with the mounting hole is formed in the tool apron, and the rotating shaft penetrates through the positioning hole and the horizontal through hole;
a jacking block and a control component are arranged between the tool apron and the pressing plate; a top block mounting groove is formed in the cutter mounting surface of the cutter holder, one end of the top block abuts against the pressing plate, the other end of the top block is arranged in the top block mounting groove, and the control assembly is used for controlling the top block to move in the top block mounting groove along the depth direction of the top block mounting groove; when the top block moves, the pressing plate can be driven to rotate.
2. The tool holder of claim 1, wherein: the control component comprises a first eccentric rod which is positioned in the top block mounting groove and is abutted against the top block; the first eccentric rod is positioned below the ejector block, and when the first eccentric rod rotates, the ejector block can be driven to move.
3. The tool holder of claim 2, wherein: and the locking screw is arranged on the top block, and the angle of eccentric locking of the first eccentric rod is adjusted by adjusting the locking screw.
4. The tool holder of claim 1, wherein: and a blade cushion block is arranged on the cutter holder close to the second clamping part.
5. The toolholder according to claim 4, wherein: and a cushion block placing groove for placing a blade cushion block is formed in the cutter holder close to the second clamping part.
6. The tool holder of claim 1, wherein: and the pressure plate is provided with a knife protection assembly.
7. The toolholder according to claim 6, wherein: the knife protection assembly comprises a knife protection device, the knife protection device comprises a connecting section and a knife protection section, the connecting section is rotatably connected with the pressing plate, and when the connecting section rotates relative to the pressing plate, the knife protection section can move towards the first clamping part and cover the placed blade.
8. The toolholder according to claim 7, wherein: the knife protection assembly further comprises a knife withdrawing mechanism and an elastic resetting mechanism.
9. The tool holder of any of claims 1-8, wherein: the support is connected with the tool apron in a sliding manner.
10. A slicer, characterized in that: comprising a tool holder according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487641.9A CN109291128B (en) | 2018-12-06 | 2018-12-06 | Knife rest and slicer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487641.9A CN109291128B (en) | 2018-12-06 | 2018-12-06 | Knife rest and slicer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109291128A CN109291128A (en) | 2019-02-01 |
| CN109291128B true CN109291128B (en) | 2020-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811487641.9A Active CN109291128B (en) | 2018-12-06 | 2018-12-06 | Knife rest and slicer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109291128B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4151980A1 (en) * | 2021-09-16 | 2023-03-22 | Sakura Finetek U.S.A., Inc. | Microtome blade guard with integrated blade alignment device |
| US11898945B2 (en) | 2020-09-18 | 2024-02-13 | Sakura Finetek U.S.A., Inc. | Microtome blade guard with integrated blade alignment device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7457803B2 (en) * | 2019-10-30 | 2024-03-28 | ライカ ビオズュステムス ヌスロッホ ゲーエムベーハー | Blade movement device, blade holding and changing device and microtome |
| CN114402186A (en) * | 2019-10-31 | 2022-04-26 | 莱卡生物系统努斯洛赫有限责任公司 | Blade clamping device for slicing machine |
| CN211804867U (en) * | 2020-01-20 | 2020-10-30 | 莱卡生物系统努斯洛赫有限责任公司 | Tool rest for slicing machine |
| EP4211438A4 (en) * | 2020-09-10 | 2024-06-19 | Leica Biosystems Nussloch GmbH | Knife holder with embedded blade changing apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19824024B4 (en) * | 1998-05-29 | 2006-03-30 | Microm International Gmbh | Knife holder for a microtome |
| DE102007006826B4 (en) * | 2006-12-21 | 2009-06-10 | Leica Biosystems Nussloch Gmbh | Microtome blade changing device for a knife holder of a microtome and microtome |
| DE102012213824B4 (en) * | 2012-08-03 | 2014-07-10 | Leica Biosystems Nussloch Gmbh | Knife holder with blade changing device |
| DE102015204013B3 (en) * | 2015-03-05 | 2016-04-14 | Pfm Medical Ag | Device for positionally accurate holding a knife or a blade on the carriage of a carriage microtome and slide microtome |
| CN105865833A (en) * | 2016-05-10 | 2016-08-17 | 张家港市光学仪器有限公司 | Cutter holder of slicing machine |
| CN207593622U (en) * | 2017-12-15 | 2018-07-10 | 徕卡显微系统(上海)有限公司 | For the clamping device of slicer |
-
2018
- 2018-12-06 CN CN201811487641.9A patent/CN109291128B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11898945B2 (en) | 2020-09-18 | 2024-02-13 | Sakura Finetek U.S.A., Inc. | Microtome blade guard with integrated blade alignment device |
| EP4151980A1 (en) * | 2021-09-16 | 2023-03-22 | Sakura Finetek U.S.A., Inc. | Microtome blade guard with integrated blade alignment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109291128A (en) | 2019-02-01 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Knife rest and slicer Effective date of registration: 20211209 Granted publication date: 20201023 Pledgee: Bank of Jiangsu Limited by Share Ltd. Shenzhen branch Pledgor: RWD LIFE SCIENCE Co.,Ltd. Registration number: Y2021980014567 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |