CN111793782A - A pathological slice knife spraying device - Google Patents

Abstract

The invention discloses a pathological section knife spraying device which comprises a deposition furnace, a base, a direct current power supply, a vacuum pump and a temperature control assembly, wherein a horizontal ball screw is arranged at the top of the deposition furnace, a ball nut is sleeved outside the ball screw, a plasma torch is fixedly connected to the bottom of the ball nut, the plasma torch consists of a rod-shaped cathode rod and a cylindrical anode barrel, the cathode rod is positioned on the central axis of the anode barrel, an arc-shaped air outlet hole is formed in the bottom of the anode barrel, the anode and the cathode of the direct current power supply are respectively connected with the cathode rod and the anode barrel, the base is positioned at the bottom of the deposition furnace, a horizontal base plate is arranged at the top of the base, a section knife is placed on the base plate, and an upper clamp and a lower clamp are respectively arranged at the; the device improves the mechanical property and the cutting property of the slicing knife, can spray the slicing knife in a full range, has uniform coating, simple structure and low cost; has important function for preventing the coating from cracking.

Description

A pathological slice knife spraying device

technical field

The invention relates to the field of tool processing, in particular to a pathological slice knife spraying device.

Background technique

A pathological knife is a very sharp knife or blade, mainly used on microtome, which is embedded in paraffin or other fixation tissue samples for reciprocating motion to obtain thin slices of tissue. In the production process, the surface of the slicing knife needs to be sprayed with a thin layer of refractory metal or non-metal with good wear resistance, which reduces the friction between the blade and the tissue and greatly improves the performance of the blade.

The existing pathological slicer spraying device can only process a fixed position when spraying, and cannot guarantee a large enough spray surface base, and the thickness of the coating obtained on the same slicer is uneven, resulting in uneven quality of the slicer; , the temperature during the spraying process is difficult to stabilize, which greatly reduces the production efficiency; at the end of the spraying, due to the power off, the coating on the surface of the slicing knife is rapidly cooled, and the coating is easy to crack or even fall off from the surface of the slicing knife, causing the entire The spraying failed, which was a huge waste of manpower and material resources.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a pathological slice knife spraying device to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a pathological slice knife spraying device, comprising a deposition furnace, a base, a DC power supply, a vacuum pump and a temperature control assembly, the top of the deposition furnace is provided with a horizontal ball screw, the ball screw A ball nut is provided on the outer casing of the rod, and a plasma torch is fixedly connected to the bottom of the ball nut. The plasma torch is composed of a rod-shaped cathode rod and a cylindrical anode cylinder, the cathode rod is located on the central axis of the anode cylinder, and the bottom of the anode cylinder is provided with Arc-shaped air outlet, the air outlet is connected with a nozzle, the positive and negative electrodes of the DC power supply are respectively connected with the cathode rod and the anode cylinder, the base is located at the bottom of the deposition furnace, the top of the base is provided with a horizontal substrate, and slices are placed on the substrate The knife is filled with solder between the slicing knife and the substrate, and the two sides of the slicing knife are suspended beyond the surface of the substrate. The upper and lower ends of the slicing knife are respectively provided with an upper clamp and a lower clamp. The sliding seat is connected with a guide rail.

As a further solution of the present invention: the temperature control assembly is composed of a high pressure water pump, a water delivery pipe and a temperature control box, the temperature control box is respectively provided with a heater and cooling water, and the output end of the temperature control box is connected to the high pressure water pump.

As a further solution of the present invention, the base and the deposition furnace are both hollow structures, the conveying water pipe is arranged in the base and the deposition furnace and forms a loop, and several water outlet holes are evenly distributed on the conveying water pipe.

As a further solution of the present invention, several spray ports are evenly distributed between the base plate and the base, and the spray ports are connected with the conveying water pipe.

As a further solution of the present invention, the inner walls of the upper clamp and the lower clamp are covered with anti-slip protrusions, and the corresponding positions of the upper clamp and the lower clamp are provided with magnetic sheets with opposite magnetic properties.

As a further solution of the present invention, an air inlet is provided on the top of the anode cylinder, the air inlet is connected with the feeding port on the top of the deposition furnace, and an air outlet is provided at the bottom of the deposition furnace, and the air outlet is connected with a vacuum pump.

Compared with the prior art, the beneficial effects of the present invention are: the device of the present invention utilizes a plasma torch to spray the DC arc plasma onto the surface of the slicing knife, so that a multi-coating structure can be formed on the surface of the slicing knife, and the mechanical properties and the mechanical properties of the slicing knife are improved. The cutting performance is excellent, and the slicing knife can be sprayed in a full range, the coating is uniform, the structure is simple and the cost is low; in addition, the temperature in the deposition furnace is controlled by the temperature control component, which plays an important role in preventing the coating from cracking.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the plasma torch of the present invention.

FIG. 3 is a schematic structural diagram of an upper clamp and a lower clamp in the present invention.

In the picture: 1-Deposition furnace, 2-Base, 3-DC power supply, 4-Vacuum pump, 5-Temperature control components, 501-High pressure water pump, 502-Conveying water pipe, 503-Temperature control box, 504-Cooling water, 505- Heater, 6-ball screw, 7-plasma torch, 701-cathode rod, 702-anode barrel, 8-ball nut, 9-feeding port, 10-nozzle, 11-substrate, 12-spray port, 13- Air inlet, 14-rail, 15-slide, 16-electric telescopic rod, 17-anti-slip bump, 18-upper clamp, 19-solder, 20-slicing knife, 21-lower clamp.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIGS. 1 to 3 , in an embodiment of the present invention, a spraying device for a pathological slice knife includes a deposition furnace 1, a base 2, a DC power supply 3, a vacuum pump 4 and a temperature control assembly 5. The top of the deposition furnace 1 is provided with a horizontal The ball screw 6 is covered with a ball nut 8, and the bottom of the ball nut 8 is fixedly connected with a plasma torch 7. The plasma torch 7 is composed of a rod-shaped cathode rod 701 and a cylindrical anode cylinder 702. The The cathode rod 701 is located on the central axis of the anode cylinder 702. The bottom of the anode cylinder 702 is provided with an arc-shaped air outlet, and the air outlet is connected with the nozzle 10. The positive and negative electrodes of the DC power supply 3 are respectively connected with the cathode rod 701 and the anode cylinder 702. Connection, the base 2 is located at the bottom of the deposition furnace 1, the top of the base 2 is provided with a horizontal substrate 11, a slicing knife 20 is placed on the substrate 11, and solder 19 is filled between the slicing knife 20 and the substrate 11, and the two sides of the slicing knife 20 exceed The surface of the base plate 11 is suspended, and the upper and lower ends of the slicing knife 20 are respectively provided with an upper clamp 18 and a lower clamp 21. The outer sides of the upper clamp 18 and the lower clamp 21 are sequentially connected with an electric telescopic rod 16 and a sliding seat 15, and the sliding seat 15 is connected with a guide rail. 14.

The temperature control assembly 5 is composed of a high pressure water pump 501, a water delivery pipe 502 and a temperature control box 503. The temperature control box 503 is respectively provided with a heater 505 and cooling water 504, and the output end of the temperature control box 503 is connected to the high pressure water pump 501. .

Both the base 2 and the deposition furnace 1 are internal hollow structures. The conveying water pipes 502 are arranged in the base 2 and the deposition furnace 1 and form a loop. The conveying water pipes 502 are evenly distributed with several water outlet holes.

There are several spray ports 12 evenly distributed between the base plate 11 and the base 2, and the spray ports 12 are connected with the conveying water pipe 502.

The inner walls of the upper clamp 18 and the lower clamp 21 are covered with anti-skid protrusions 17 , and the corresponding positions of the upper clamp 18 and the lower clamp 21 are provided with magnetic sheets with opposite magnetic properties.

The anode cylinder 702 is provided with an air inlet 13 at the top, and the air inlet 13 is connected to the feeding port 9 at the top of the deposition furnace 1 .

The device of the present invention utilizes the plasma torch 7 to spray the DC arc plasma onto the surface of the slicing knife 20, so that a multi-coating structure can be formed on the surface of the slicing knife 20, the mechanical properties and cutting performance of the slicing knife 20 are improved, and the Full range of spraying, uniform coating, simple structure and low cost; in addition, controlling the temperature in the deposition furnace 1 through the temperature control component 5 plays an important role in preventing the coating from cracking.

When the device of the present invention is working, first place the slicing knife 20 on the substrate 11, and clamp the slicing knife 20 through the action of the upper clamp 18 and the lower clamp 21, the cathode rod 701 and the anode cylinder 702 in the plasma torch 7 are in direct current Under the action of the power supply 3, a DC discharge occurs inside, and the gas in the anode barrel 702 is ionized to generate high-temperature plasma. The plasma expands rapidly in the anode barrel 702, and is ejected downward from the nozzle 10 at a high speed. The high-temperature plasma collides with the surface of the slicing knife 20, and is rapidly cooled, so that a chemical reaction occurs, and a coating is formed on the surface of the slicing knife 20 to protect the slicing knife 20; Therefore, a ball screw 6 is provided on the top of the plasma torch 7, and the rotation of the ball screw 6 drives the ball nut 8 and the plasma torch 7 to move left and right, thereby ensuring that the slicing knife 20 can be fully sprayed, and the coating The layer thickness is uniform. After the slicing knife 20 in the deposition furnace 1 is sprayed, the upper clamp 18 and the lower clamp 21 clamped on the slicing knife 20 move under the driving of the guide rail 14 and the sliding seat 15, so that the slicing knife 20 can be completely sent out.

Since the plasma torch 7 will generate high-temperature gas during the spraying process, and the slicing knife 20 needs to be cooled and cooled, a temperature control assembly 5 is provided to control the temperature in the deposition furnace 1, and the cooling water in the temperature control box 503 is pumped through the high-pressure water pump 501. 504 is transported into the delivery water pipe 502. Since the delivery water pipe 502 is distributed in the deposition furnace 1 and the base 2, when high-pressure cooling water 504 passes through, the water outlet located on the delivery water pipe 502 will spray out liquefied water mist, which will affect the deposition furnace. 1 and the base 2 are cooled, and the spray port 12 located under the substrate 11 further sprays cooling water 504 to the substrate 11 to cool the slicing knife 20 above the substrate 11, thereby achieving a better spraying effect. At the same time, in order to avoid the cracking of the coating caused by the rapid cooling of the slicing knife 20 when the DC power supply 3 is suddenly turned off, the heater 505 in the temperature control box 503 can also heat the cooling water 504, and then send it to the deposition through the high-pressure pump and the water delivery pipe 502. Everywhere in the furnace 1, it is ensured that the slicing knife 20 maintains a certain temperature, thereby avoiding the cracking of the coating and saving manpower and material resources.

There are multiple upper clamps 18 and lower clamps 21, which are mainly used for clamping and transporting the slicing knife 20. When the slicing knife 20 needs to be fixed, the electric telescopic rod 16 is extended to the position of the slicing knife 20, so that the upper clamp is 18 and the lower clamp 21 are respectively located at the upper and lower ends of the slicing knife 20, the upper clamp 18 and the lower clamp 21 attract each other under the action of the magnetic sheet, thereby clamping the slicing knife 20; the anti-slip protrusion 17 ensures that the slicing knife 20 will not be Relative movement occurs.

The air inlet 13 at the top of the anode barrel 702 is mainly used for inputting ionized raw materials; the air outlet is evacuated by the vacuum pump 4 to ensure the high pressure environment in the deposition furnace 1, thereby facilitating the spraying.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A pathological slice knife spraying device, comprising a deposition furnace (1), a base (2), a DC power supply (3), a vacuum pump (4) and a temperature control assembly (5), characterized in that: the deposition furnace (1) ) is provided with a horizontal ball screw (6) at the top, the ball screw (6) is covered with a ball nut (8), and the bottom of the ball nut (8) is fixedly connected with a plasma torch (7), the plasma torch (7) by A rod-shaped cathode rod (701) and a cylindrical anode cylinder (702) are formed, the cathode rod (701) is located on the central axis of the anode cylinder (702), and the bottom of the anode cylinder (702) is provided with an arc-shaped outlet. The air hole is connected with a nozzle (10), the positive and negative electrodes of the DC power supply (3) are respectively connected to the cathode rod (701) and the anode cylinder (702), and the base (2) is located at the bottom of the deposition furnace (1) , the top of the base (2) is provided with a horizontal substrate (11), a slicing knife (20) is placed on the substrate (11), and solder (19) is filled between the slicing knife (20) and the substrate (11), and the slicing knife ( 20) Both sides are suspended beyond the surface of the base plate (11), and the upper and lower ends of the slicing knife (20) are respectively provided with an upper clamp (18) and a lower clamp (21), and the outer sides of the upper clamp (18) and the lower clamp (21) are in sequence An electric telescopic rod (16) and a sliding seat (15) are connected, and the sliding seat (15) is connected with a guide rail (14). 2. A pathological slice knife spraying device according to claim 1, characterized in that: the temperature control assembly (5) is composed of a high-pressure water pump (501), a conveying water pipe (502) and a temperature control box (503), The temperature control box (503) is respectively provided with a heater (505) and cooling water (504), and the output end of the temperature control box (503) is connected to the high pressure water pump (501). 3. A pathological slice knife spraying device according to claim 1, characterized in that: the base (2) and the deposition furnace (1) are both internal hollow structures, and the conveying water pipe (502) is provided on the base (502). 2) A loop is formed in the deposition furnace (1), and several water outlet holes are evenly distributed on the conveying water pipe (502). 4. A pathological slice knife spraying device according to claim 1, characterized in that: a plurality of spray ports (12) are evenly distributed between the substrate (11) and the base (2), and the spray ports (12) and The delivery water pipe (502) is connected. 5. A pathological slice knife spraying device according to claim 1, characterized in that: the inner walls of the upper clamp (18) and the lower clamp (21) are covered with anti-skid protrusions (17), and the upper clamp (18) A magnetic sheet opposite to the magnetism is provided at a position corresponding to the lower clamp (21). 6. A pathological slice knife spraying device according to claim 1, characterized in that: an air inlet (13) is provided at the top of the anode cylinder (702), the air inlet (13) is connected to the deposition furnace (1) The top feeding port (9) is connected, and the bottom of the deposition furnace (1) is provided with an air outlet, and the air outlet is connected with the vacuum pump (4).

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