Special vacuum kneading machine for high-precision experiment
By designing a special vacuum kneader for high-precision experiments, using motor-driven rotary drum and air pump technology, the problem of low practicality of conventional vacuum kneaders in the laboratory is solved, efficient kneading operation of a small amount of materials is achieved, and equipment is simplified structure.
Patent Information
- Application Number
- CN202421068059.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-16
AI Technical Summary
Conventional vacuum kneaders have complex structures and large sizes, resulting in less practicality when handling small amounts of materials in the laboratory.
A special vacuum kneader for high-precision experiments was designed, using motor-driven rotor, combining pump and air blocking technology, and the vacuum state is achieved through sealing cover and air pump nozzle, and the material is flattened by centrifugal force, simplifying the structure to adapt to the laboratory use.
It realizes efficient and uniform kneading of a small amount of materials in the laboratory, simplifies the operation process, and improves the practicality and accuracy of the vacuum kneader.
Smart Images
Figure CN222309360U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vacuum kneading machines, in particular to a high-precision vacuum kneading machine special for experiments. Background Art
[0002] The working principle of the vacuum kneader is that a pair of mutually cooperating and rotating blades produce a strong shearing effect to make semi-dry or rubbery viscous plastic materials react quickly to obtain uniform mixing and stirring.
[0003] Since conventional kneading machines have a relatively complex structure and can only exist in a relatively large size, and only a small amount of material needs to be kneaded in the laboratory, the conventional vacuum kneading machine has a relatively low practicality in the laboratory.
[0004] Therefore, we proposed a high-precision vacuum kneading machine for experiments to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the problem that the conventional vacuum kneading machine has low practicability in the laboratory, and proposes a high-precision vacuum kneading machine specially used for experiments.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A vacuum kneading machine for high-precision experiments includes a motor, a rotating drum fixedly connected to the rotor of the motor, a sealing cover on the rotating drum, a vacuum nozzle fixedly connected to the sealing cover, and a gas blocking plug slidingly sealed inside the vacuum nozzle. The material is placed in the rotating drum, and then the sealing cover is covered on the rotating drum. The gas in the rotating drum and the sealing cover is extracted through the vacuum nozzle by means of a vacuum pump, so that the gas presses the gas blocking plug to be discharged outward, so that a vertical air is formed in the rotating drum. After removing the vacuum pump, the atmospheric pressure is used to act on the gas blocking plug, so that the gas blocking plug is sealed in the vacuum nozzle. The rotating drum is driven by the motor to rotate slowly, so that the material rolls into a columnar shape in the rotating drum, and then the motor is driven to drive the rotating drum to rotate at a high speed, and the material is flattened by centrifugal force. Similarly, reciprocating kneading is performed. The simple structure is convenient for laboratory use.
[0008] Preferably, the rotating drum comprises a drum body and a first sealing ring, wherein the first sealing ring is fixedly connected to the opening of the drum body. When extracting air from the drum body, the first sealing ring is used to seal between the drum body and the sealing cover to prevent gas from entering the drum body, thereby facilitating the maintenance of vacuum in the drum body.
[0009] Preferably, the rotating drum further comprises a kneading block, which is evenly and fixedly connected to the inner end of the drum. When the drum rotates slowly, the kneading block is used to squeeze the material, thereby facilitating increasing the local pressure of kneading.
[0010] Preferably, the sealing cover comprises a cover body and a handle, wherein the handle is fixedly connected to the outer end of the cover body, so as to facilitate manual operation of opening or closing the sealing cover.
[0011] Preferably, the sealing cover further comprises a guide ring, which is fixedly connected to the outer end of the cover body, so as to facilitate guiding the cover body to cover the cylinder body through the guide ring.
[0012] Preferably, the air extraction nozzle comprises a connecting pipe, an air extraction pipe and a retaining ring, wherein the connecting pipe is fixedly connected to the air extraction pipe as a whole, and the retaining ring is fixedly connected to the inner end of the air extraction pipe. The air extraction pipe is used to guide the air blocking plug to slide, and after the air blocking plug is fitted with the connecting pipe, the connecting pipe is sealed by the air blocking plug, so that the air blocking plug can block air in one direction.
[0013] Preferably, the air blocking plug comprises a movable plug, a slider and a second sealing ring, wherein the movable plug is fixedly connected to the slider, and the second sealing ring is fixedly connected to the movable plug. When atmospheric pressure acts on the outside of the movable plug, the second sealing ring acts on the connecting pipe through the movable plug, so that the air blocking plug can seal the air extraction nozzle.
[0014] Preferably, the air blocking plug further comprises a push button, which is fixedly connected to the outer end of the movable plug. The push button is pushed sideways to slightly twist the movable plug, so that a gap is generated between the second sealing ring and the connecting pipe, so that external air can enter the drum through the gap, which facilitates the entry of external air into the internal negative pressure, thereby facilitating the opening of the sealing cover again.
[0015] In summary, the technical effects and advantages of the utility model are as follows:
[0016] 1. Put the material into the drum, then cover the drum with the sealing cover, and then use the vacuum pump to extract the gas in the drum and the sealing cover through the vacuum nozzle, so that the gas presses the air blocking plug to be discharged outward, so that a straight air is formed in the drum. After removing the vacuum pump, use the atmospheric pressure to act on the air blocking plug, so that the air blocking plug is sealed in the vacuum nozzle, and the drum is driven by the motor to rotate slowly, so that the material rolls into a column in the drum, and then the motor is driven to drive the drum to rotate at a high speed, and the centrifugal force is used to flatten the material. Similarly, reciprocating kneading is performed. The simple structure is convenient for laboratory use.
[0017] 2. The exhaust pipe is used to guide the air blocking plug to slide. After the air blocking plug is fitted with the connecting pipe, the connecting pipe is sealed with the air blocking plug to facilitate one-way air blocking of the air blocking plug.
[0018] 3. When the atmospheric pressure acts on the outside of the movable plug, the second sealing ring is acted on by the movable plug, so that the second sealing ring is sealed on the connecting pipe, which facilitates the air blocking plug to seal the exhaust nozzle.
[0019] 4. Push the push button to the side to twist the movable plug slightly, so that a gap is generated between the second sealing ring and the connecting pipe, allowing external air to enter the drum through the gap, making it easier for external air to enter and neutralize the internal negative pressure, thereby facilitating the opening of the sealing cover again. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall split structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the rotary drum structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the sealing cover structure of the utility model;
[0023] Figure 4 It is a schematic diagram of the cut structure of the air extraction nozzle of the utility model;
[0024] Figure 5 This is a schematic diagram of the air blocking plug structure of the utility model.
[0025] In the figure: 1. motor; 2. rotating drum; 3. sealing cover; 4. exhaust nozzle; 5. air blocking plug; 21. cylinder body; 22. first sealing ring; 23. kneading block; 31. cover body; 32. guide ring; 33. handle; 41. connecting pipe; 42. exhaust pipe; 43. retaining ring; 51. movable plug; 52. slider; 53. second sealing ring; 54. push button. DETAILED DESCRIPTION
[0026] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.
[0027] Reference Figure 1 A high-precision vacuum kneading machine for experiments includes a motor 1, a rotating drum 2 is fixedly connected to the rotor of the motor 1, a sealing cover 3 is covered on the rotating drum 2, a vacuum nozzle 4 is fixedly connected to the sealing cover 3, and a gas blocking plug 5 is slidingly sealed inside the vacuum nozzle 4.
[0028] Reference Figure 1 and 2 The drum 2 includes a drum body 21 and a first sealing ring 22. The drum body 21 is fixedly connected to the rotor of the motor 1. The first sealing ring 22 is fixedly connected to the opening of the drum body 21. When the air inside the drum body 21 is extracted, the first sealing ring 22 is used to seal between the drum body 21 and the sealing cover 3 to prevent gas from entering the drum body 21.
[0029] Reference Figure 1 and 2The rotating drum 2 further includes a kneading block 23, which is evenly and fixedly connected to the inner end of the cylinder 21. When the cylinder 21 rotates slowly, the kneading block 23 is used to extrude the material.
[0030] Reference Figure 1 , 2 3, the sealing cover 3 includes a cover body 31 and a handle 33, the cover body 31 covers the opening of the cylinder 21, the first sealing ring 22 is in sealing contact with the cover body 31, and the handle 33 is fixedly connected to the outer end of the cover body 31. The cover body 31 is operated by holding the handle 33.
[0031] Reference Figure 1 , 2 3, the sealing cover 3 further includes a guide ring 32, which is fixedly connected to the outer end of the cover body 31. The guide ring 32 is used to guide the cover body 31 to cover the outside of the cylinder 21.
[0032] Reference Figure 1 , 3 4, the air extraction nozzle 4 includes a connecting pipe 41, an air extraction pipe 42 and a retaining ring 43. The connecting pipe 41 is fixedly connected to the inner end of the cover body 31, and the connecting pipe 41 passes through the cover body 31. The connecting pipe 41 and the air extraction pipe 42 are fixedly connected as a whole, and the retaining ring 43 is fixedly connected to the inner end of the air extraction pipe 42. The air extraction pipe 42 is used to guide the air blocking plug 5 to slide. After the air blocking plug 5 is fitted with the connecting pipe 41, the connecting pipe 41 is sealed by the air blocking plug 5.
[0033] Reference Figure 1 , 4 5, the air blocking plug 5 includes a movable plug 51, a slider 52 and a second sealing ring 53, the second sealing ring 53 is in sealing contact with the connecting pipe 41, the slider 52 is slidably inserted in the connecting pipe 41, the movable plug 51 is slidably inserted in the exhaust pipe 42, the movable plug 51 is fixedly connected to the slider 52, and the second sealing ring 53 is fixedly connected to the movable plug 51. When the atmospheric pressure acts on the outside of the movable plug 51, the second sealing ring 53 is acted on by the movable plug 51, so that the second sealing ring 53 is sealed on the connecting pipe 41.
[0034] Reference Figure 1 , 4 5, the air blocking plug 5 further includes a push button 54, which is fixedly connected to the outer end of the movable plug 51. The push button 54 is pushed sideways to slightly twist the movable plug 51, so that a gap is generated between the second sealing ring 53 and the connecting pipe 41, so that external gas enters the drum 2 through the gap.
[0035] Working principle: put the material into the drum 2, then cover the sealing cover 3 on the drum 2, and then use the vacuum pump to extract the gas in the drum 2 and the sealing cover 3 through the vacuum nozzle 4, so that the gas presses the air blocking plug 5 to be discharged outward, so that a vertical air gap is formed in the drum 2. After removing the vacuum pump, use the atmospheric pressure to act on the air blocking plug 5, so that the air blocking plug 5 is sealed in the vacuum nozzle 4, and the motor 1 is used to drive the drum 2 to rotate slowly, so that the material rolls into a column in the drum 2, and then the motor 1 is driven to drive the drum 2 to rotate at a high speed, and the centrifugal force is used to flatten the material, and the reciprocating kneading is carried out in the same way.
[0036] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.
[0037] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.
Claims
1. A high-precision vacuum kneading machine for experiments, comprising a motor (1), characterized in that: A rotating drum (2) is fixedly connected to the rotor of the motor (1), a sealing cover (3) is covered on the rotating drum (2), an air extraction nozzle (4) is fixedly connected to the sealing cover (3), and an air blocking plug (5) is slidably sealed inside the air extraction nozzle (4).
2. A high-precision vacuum kneading machine for experiments according to claim 1, characterized in that: The rotating drum (2) comprises a drum body (21) and a first sealing ring (22), wherein the first sealing ring (22) is fixedly connected to an opening of the drum body (21).
3. A high-precision vacuum kneading machine for experiments according to claim 2, characterized in that: The rotating drum (2) further comprises a kneading block (23), wherein the kneading block (23) is evenly and fixedly connected to the inner end of the drum body (21).
4. A high-precision vacuum kneading machine for experiments according to claim 1, characterized in that: The sealing cover (3) comprises a cover body (31) and a handle (33), wherein the handle (33) is fixedly connected to the outer end of the cover body (31).
5. A high-precision vacuum kneading machine for experiments according to claim 4, characterized in that: The sealing cover (3) further comprises a guide ring (32), wherein the guide ring (32) is fixedly connected to the outer end of the cover body (31).
6. A high-precision vacuum kneading machine for experiments according to claim 1, characterized in that: The air extraction nozzle (4) comprises a connecting pipe (41), an air extraction pipe (42) and a retaining ring (43); the connecting pipe (41) and the air extraction pipe (42) are fixedly connected to form a whole; and the retaining ring (43) is fixedly connected to the inner end of the air extraction pipe (42).
7. A high-precision vacuum kneading machine for experiments according to claim 1, characterized in that: The air blocking plug (5) comprises a movable plug (51), a sliding block (52) and a second sealing ring (53); the movable plug (51) is fixedly connected to the sliding block (52), and the second sealing ring (53) is fixedly connected to the movable plug (51).
8. A high-precision vacuum kneading machine for experiments according to claim 7, characterized in that: The air blocking plug (5) further comprises a push button (54), wherein the push button (54) is fixedly connected to the outer end of the movable plug (51).