A quantitative sampling device for ceramic microbead processing

Abstract

The present invention relates to the technical field of quantitative sampling devices, and discloses a quantitative sampling device for ceramic microbead processing, including a pressure supply branch pipe, a sampling branch pipe and a connecting branch pipe. In the process of the driving sleeve rod driving the air extraction piston to move inside the pressure supply branch pipe, the present invention gradually reduces the air pressure inside the sampling cavity to a level lower than the internal air pressure of the ceramic microbead grinder, and then moves the closed stopcock to the inside of the connecting branch pipe by rotating the disassembly connecting rod, so that the sampling cavity is connected to the inside of the ceramic microbead grinder. Under negative pressure conditions, the ceramic microbead material inside the ceramic microbead grinder is pressed into the sampling cavity by air pressure, and gradually enters the sampling tube connected to the end of the sampling branch pipe away from the pressure supply branch pipe for collection, so as to be able to cooperate with the negative pressure production needs of the ceramic microbeads, effectively cope with the negative pressure production environment, and perform sampling operations while avoiding destroying the negative pressure production conditions.

Description

Technical Field

[0001] The invention relates to the technical field of quantitative sampling devices, in particular to a quantitative sampling device for processing ceramic micro beads. Background Art

[0002] Sampling refers to the process of extracting individuals or samples from a population, that is, the process of testing or observing the population. There are two types of sampling: random sampling and non-random sampling. The former refers to a sampling method that extracts samples from a population in accordance with the principle of randomization. It is not subjective and includes simple random sampling, systematic sampling, cluster sampling, and stratified sampling. The latter is a method of extracting samples based on the researcher's opinions, experience, or relevant knowledge, which is obviously subjective. See "random sampling" and "non-random sampling". In the production process of various products, sampling inspection is an indispensable part of judging the progress of the production process and the quality of the product. Nowadays, the use of samplers for random sampling in the production process has penetrated into the production process of various products, providing reliable samples and data sources for improving production standards and ensuring product quality.

[0003] Ceramic microbeads are generally used as one of the important components of thermal insulation materials. Ceramic microbeads are generally hollow. Through a special molding process, tiny pores with a tightly packed structure are formed inside the microbeads, thereby achieving excellent thermal insulation effects. At the same time, ceramic microbeads also have extremely strong high temperature resistance and can work stably for a long time in a high temperature environment. The unique properties of this coating make it an ideal thermal insulation material. It is widely used in various high-temperature equipment, as well as in nano-ceramic microbead thermal insulation coatings and building materials made with ceramic microbeads as the main raw material. It has the characteristics of Class A fireproofing, waterproofing, stain resistance, corrosion resistance, mildew resistance, green environmental protection, ultra-thin thermal insulation, and quick construction. It can widely replace polystyrene boards and rock wool boards that are prone to large-scale shedding in the building materials market.

[0004] In the process of producing ceramic microbeads, grinding equipment such as ball mills are usually used to grind ceramic microbead raw materials to obtain ceramic microbead materials with suitable particle sizes. In the grinding process of ceramic microbeads, it is usually necessary to use a quantitative sampling device to randomly sample the ceramic microbead materials inside the grinding equipment, and quantitative sampling is performed at multiple sampling points by the quantitative sampling device. Then, the particle size of the ceramic microbead materials at each sampling point is obtained through inspection, so as to judge the production progress of the ceramic microbead materials;

[0005] However, due to the different production processes of existing ceramic microbeads, grinding equipment also needs to be ground under different pressure environments. Existing sampling equipment can usually only take samples during the production process of ceramic microbeads under high pressure or normal pressure. Since there are tiny pores with tightly packed structures inside the ceramic microbeads, the production of most ceramic microbeads needs to be carried out under negative pressure to prevent the collapse of the tightly packed tiny pores inside. As a result, existing sampling equipment is not suitable for the negative pressure production environment of ceramic microbeads, making it difficult to sample the production process of ceramic microbeads.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a quantitative sampling device for processing ceramic microbeads.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A quantitative sampling device for processing ceramic micro beads, comprising: a pressure supply branch pipe, a sampling branch pipe and a connecting branch pipe; one end of the pressure supply branch pipe is connected to the connecting branch pipe, one end of the sampling branch pipe is connected to an end of the pressure supply branch pipe close to the connecting branch pipe, and an end of the sampling branch pipe away from the pressure supply branch pipe is connected to a sampling cylinder; an end of the connecting branch pipe away from the pressure supply branch pipe is provided with a connecting port, and the quantitative sampling device for processing ceramic micro beads can be connected to various sampling ports of a ceramic micro bead grinder in sequence through the connecting port of the connecting branch pipe; each sampling port is provided with a sealing A closed stopcock, an air extraction piston is arranged inside the pressure supply branch pipe, a disassembly connecting rod is arranged through the center of the air extraction piston, and relative sliding can occur between the disassembly connecting rod and the air extraction piston; a driving sleeve rod is arranged on the side of the air extraction piston away from the connecting branch pipe, the disassembly connecting rod passes through the driving sleeve rod, and a one-way valve is arranged on the end of the pressure supply branch pipe close to the connecting branch pipe; the disassembly connecting rod can be temporarily fixed to the closed stopcock, and the closed stopcock can be detached from the sampling port by rotating the disassembly connecting rod, and the closed stopcock can be moved to the inside of the connecting branch pipe.

[0010] Preferably, the connecting branch pipe is connected to the sampling port, and when the closing plug closes the sampling port, a sampling cavity exists inside the pressure supply branch pipe, the sampling branch pipe and the connecting branch pipe under the separation of the vacuum piston; the one-way opening direction of the one-way valve is from the inside of the connecting branch pipe to the outside of the one-way valve, and the gas in the sampling cavity can be discharged from the one-way valve during the movement of the vacuum piston, thereby reducing the air pressure inside the sampling cavity.

[0011] Preferably, a negative pressure gauge is provided on one side of the connecting branch pipe, and the detection end of the negative pressure gauge extends into the interior of the sampling cavity, and the negative pressure gauge is used to detect the internal air pressure of the sampling cavity; when the difference between the internal air pressure of the sampling cavity obtained by the negative pressure gauge and the internal air pressure of the ceramic bead grinder is greater than a set value, the closing stopcock can be moved to the interior of the connecting branch pipe by disassembling the connecting rod.

[0012] Preferably, when the difference between the internal air pressure of the sampling cavity and the internal air pressure of the ceramic microbead grinder is greater than a set value, the closed stopcock is moved to the inside of the connecting branch pipe by the disassembly connecting rod, and the interior of the sampling cavity is connected to the interior of the ceramic microbead grinder. The negative pressure inside the sampling cavity sucks the material inside the ceramic microbead grinder into the sampling cavity from the sampling port connected to the connecting port of the connecting branch pipe, and enters the sampling cylinder connected to the end of the sampling branch pipe away from the pressure supply branch pipe.

[0013] Preferably, one end of the disassembly connecting rod close to the connecting branch pipe can be threadedly connected to the closed plug, the closed plug is threadedly connected to the sampling port, and the threaded connection between the closed plug and the sampling port and the disassembly connecting rod has opposite thread directions.

[0014] Preferably, a sealing rubber ring is provided on the end face of the connecting port, a magnetic connecting piece is provided inside the end face of the connecting port, and an iron connecting piece is provided inside the end face of each sampling port. Magnetic interference can be generated between the magnetic connecting pieces and the iron connecting pieces to assist in the quick connection and alignment between the connecting port and the sampling port.

[0015] Preferably, a disassembly handle is provided at the end of the disassembly connecting rod away from the closing cock, and the end of the disassembly connecting rod close to the disassembly handle passes through the end of the supply and pressure branch pipe away from the connecting branch pipe; a holding ring is provided at the end of the driving sleeve rod away from the vacuum piston, and the end of the driving sleeve rod close to the holding ring passes through the end of the supply and pressure branch pipe away from the connecting branch pipe; the end of the disassembly connecting rod close to the disassembly handle passes through the end of the driving sleeve rod away from the vacuum piston and the holding ring.

[0016] Preferably, a locking sealing ring is provided at the connection between the sampling branch tube and the sampling barrel, and the locking sealing ring is used to lock and seal the sampling branch tube and the sampling barrel; a detection window is provided on the surface of the sampling barrel, and the detection window is made of transparent material; a one-way valve is provided inside one end of the sampling branch tube close to the sampling barrel, and the one-way opening direction of the one-way valve is from the sampling branch tube to the sampling barrel.

[0017] Preferably, a pressure relief valve is also provided on one side of the connecting branch pipe, and the pressure relief valve separates the sampling cavity from the outside world. When the pressure relief valve is opened, the sampling cavity is connected to the outside world, and the air pressure inside the sampling cavity is restored to be consistent with the outside air pressure.

[0018] Compared with the prior art, the present invention provides a quantitative sampling device for ceramic microbead processing, which has the following beneficial effects:

[0019] 1. This kind of quantitative sampling device for ceramic microbead processing, when the driving sleeve rod drives the air pumping piston to move inside the pressure supply branch pipe, gradually reduces the air pressure inside the sampling cavity, until the air pressure inside the sampling cavity is reduced to less than the internal air pressure of the ceramic microbead grinder, the air pumping piston can be driven to move, at this time the air pumping piston is located inside the pressure supply branch pipe, and then the disassembly connecting rod and the closed cock are temporarily threaded and fixed, the closed cock can be separated from the sampling port by rotating the disassembly connecting rod, and the closed cock can be moved to the inside of the connecting branch pipe, so that the sampling cavity is connected to the inside of the ceramic microbead grinder through the sampling port. Under the condition that the internal air pressure of the ceramic microbead grinder is higher than the internal air pressure of the sampling cavity, the ceramic microbead grinder can be connected to the inside of the sampling cavity. The ceramic microbead material inside the bead grinder is pressed into the sampling cavity by air pressure, and gradually enters the sampling tube connected to the end of the sampling branch pipe away from the pressure supply branch pipe for collection, so as to make full use of the negative pressure condition, and press the ceramic microbead material to be sampled into the sampling tube for sampling, so as to be able to cooperate with the negative pressure production needs of the ceramic microbeads, effectively cope with the negative pressure production environment, and perform sampling operations while avoiding destroying the negative pressure production conditions. This quantitative sampling device for ceramic microbead processing can avoid the conventional sampling inconvenience caused by negative pressure conditions and the need to stop the machine for sampling, can effectively ensure the continuity of ceramic production under negative pressure conditions, and can also effectively save the time delay caused by stopping the machine for sampling.

[0020] 2. In the quantitative sampling device for processing ceramic microbeads, the threaded connection between the closed plug and the sampling port and the disassembly connecting rod has opposite threads, so that the end of the disassembly connecting rod close to the connecting branch can be first screwed into the closed plug, and then continue to rotate in the same direction, so that the threaded connection between the closed plug and the sampling port can be loosened in the opposite direction, so that the connection between the closed plug and the sampling port can be released, and the closed plug can be moved to the inside of the connecting branch by pulling the disassembly connecting rod, and after the sampling is completed, the opposite operation is adopted to tighten the closed plug to the sampling port again to complete the operation of connecting and isolating the interior of the sampling cavity with the interior of the ceramic microbead grinder.

[0021] 3. The quantitative sampling device for processing ceramic microbeads uses the mutual attraction of magnetic interference between the magnetic connecting piece and the iron connecting piece to quickly connect and align the auxiliary connecting port with the sampling port, seal the connecting port and the sampling port with the sealing rubber ring, and temporarily fix the auxiliary connecting port with the sampling port through the magnetic connection, so that the auxiliary connecting port and the sampling port can be quickly connected and removed conveniently, which is convenient for the quantitative sampling device for processing ceramic microbeads to continuously sample multiple sampling ports of the ceramic microbead grinder, thereby improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of a quantitative sampling device for ceramic microbead processing according to the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of a ceramic micro-bead grinding machine;

[0024] Figure 3 This is a second schematic diagram of the three-dimensional structure of a quantitative sampling device for ceramic microbead processing according to the present invention;

[0025] Figure 4 This is a third schematic diagram of the three-dimensional structure of a quantitative sampling device for ceramic microbead processing according to the present invention;

[0026] Figure 5 It is a schematic diagram of the assembly of a quantitative sampling device for ceramic microbead processing of the present invention;

[0027] Figure 6 It is a cross-sectional view of a quantitative sampling device for ceramic microbead processing of the present invention;

[0028] Figure 7 For the present invention Figure 6 A magnified schematic diagram of part A;

[0029] Figure 8 For the present invention Figure 6 An enlarged schematic diagram of part B.

[0030] In the figure: 1. pressure supply branch pipe; 11. vacuum piston; 12. disassembled connecting rod; 121. disassembled handle; 13. drive sleeve rod; 131. holding ring; 14. one-way valve; 2. sampling branch pipe; 21. one-way through valve; 3. connecting branch pipe; 31. connecting port; 311. sealing rubber ring; 312. magnetic connecting piece; 32. negative pressure gauge; 33. pressure relief valve; 4. ceramic micro bead grinder; 5. sampling port; 51. closed stopcock; 52. iron connecting piece; 6. sampling tube; 61. locking sealing ring; 62. detection window. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a quantitative sampling device for ceramic microbead processing.

[0033] See also Figure 1-Figure 8 A quantitative sampling device for processing ceramic microbeads comprises: a pressure supply branch pipe 1, a sampling branch pipe 2 and a connecting branch pipe 3; one end of the pressure supply branch pipe 1 is connected to the connecting branch pipe 3, one end of the sampling branch pipe 2 is connected to the end of the pressure supply branch pipe 1 close to the connecting branch pipe 3, and the end of the sampling branch pipe 2 away from the pressure supply branch pipe 1 is connected with a sampling tube 6; the end of the connecting branch pipe 3 away from the pressure supply branch pipe 1 is provided with a connecting port 31, and the quantitative sampling device for processing ceramic microbeads can be connected to each sampling port 5 of a ceramic microbead grinder 4 in turn through the connecting port 31 of the connecting branch pipe 3; each sampling port 5 is provided with a closed cock inside 51, a vacuum piston 11 is arranged inside the supply and pressure branch pipe 1, and a disassembly connecting rod 12 is arranged through the center of the vacuum piston 11, and relative sliding can occur between the disassembly connecting rod 12 and the vacuum piston 11; a driving sleeve rod 13 is arranged on the side of the vacuum piston 11 away from the connecting branch pipe 3, and the disassembly connecting rod 12 passes through the driving sleeve rod 13, and a one-way valve 14 is arranged on the end of the supply and pressure branch pipe 1 close to the connecting branch pipe 3; the disassembly connecting rod 12 can be temporarily fixed to the closing plug 51, and the closing plug 51 can be detached from the sampling port 5 by rotating the disassembly connecting rod 12, and the closing plug 51 can be moved to the inside of the connecting branch pipe 3.

[0034] When in use, the quantitative sampling device for processing ceramic microbeads is connected to any sampling port 5 of the ceramic microbead grinding machine 4 through the connection port 31 of the connecting branch pipe 3, and then the pumping piston 11 is driven to move inside the supply and pressure branch pipe 1 through the driving sleeve rod 13, and the gas inside the sampling cavity (under the separation of the pumping piston 11, there is a sampling cavity inside the supply and pressure branch pipe 1, the sampling branch pipe 2 and the connecting branch pipe 3) is gradually discharged through the one-way valve 14 provided at one end of the supply and pressure branch pipe 1 close to the connecting branch pipe 3. In this process, due to the disassembly of the connecting rod 12 and the pumping piston 11, a gas can be generated. Relative sliding occurs, and the disassembling connecting rod 12 will not interfere with the movement process of the driving sleeve rod 13 driving the air extraction piston 11, and in actual application, the disassembling connecting rod 12 and the air extraction piston 11 are sealed in the relative sliding and static states, so that when the driving sleeve rod 13 drives the air extraction piston 11 to move inside the pressure supply branch pipe 1, the air pressure inside the sampling cavity is gradually reduced. When the air pressure inside the sampling cavity is reduced to less than the internal air pressure of the ceramic micro-bead grinder 4, the driving of the air extraction piston 11 to move can be stopped. At this time, the air extraction piston 11 is located inside the pressure supply branch pipe 1, and then the disassembling connecting rod 12 is used to disassemble the connecting rod 12. The rod 12 is temporarily threadedly fixed to the closed cock 51. By rotating and disassembling the connecting rod 12, the closed cock 51 can be separated from the sampling port 5 (there is also a threaded connection between the closed cock 51 and the sampling port 5), and the closed cock 51 can be moved to the inside of the connecting branch pipe 3, so that the sampling cavity is connected to the inside of the ceramic micro-bead grinder 4 through the sampling port 5. Under the condition that the internal air pressure of the ceramic micro-bead grinder 4 is higher than the air pressure inside the sampling cavity, the ceramic micro-bead material inside the ceramic micro-bead grinder 4 is pressed into the sampling cavity by the air pressure, and gradually enters the sampling branch pipe 2 away from the pressure supply branch pipe 1. The ceramic microbead material to be sampled is pressed into the sampling tube 6 for sampling, so as to be able to cooperate with the negative pressure production needs of the ceramic microbeads and effectively cope with the negative pressure production environment. The sampling operation can be performed while avoiding destroying the negative pressure production conditions. This quantitative sampling device for ceramic microbead processing can avoid the conventional sampling inconvenience caused by negative pressure conditions and the need to stop the machine for sampling, can effectively ensure the continuity of ceramic production under negative pressure conditions, and can also effectively save the time delay caused by stopping the machine for sampling.

[0035] For further information, see Figure 1-Figure 4 , Figure 6-Figure 8 , the connecting branch pipe 3 is connected with the sampling port 5, and when the closing plug 51 closes the sampling port 5, under the separation of the vacuum piston 11, there is a sampling cavity inside the pressure supply branch pipe 1, the sampling branch pipe 2 and the connecting branch pipe 3; the one-way opening direction of the one-way valve 14 is from the inside of the connecting branch pipe 3 to the outside of the one-way valve 14, and the gas in the sampling cavity can be discharged from the one-way valve 14 during the movement of the vacuum piston 11, thereby reducing the air pressure inside the sampling cavity.

[0036] A negative pressure gauge 32 is provided on one side of the connecting branch pipe 3, and the detection end of the negative pressure gauge 32 extends into the sampling cavity. The negative pressure gauge 32 is used to detect the internal air pressure of the sampling cavity; when the difference between the internal air pressure of the sampling cavity detected by the negative pressure gauge 32 and the internal air pressure of the ceramic bead grinder 4 is greater than a set value, the closing valve 51 can be moved to the inside of the connecting branch pipe 3 by disassembling the connecting rod 12.

[0037] When the difference between the internal air pressure of the sampling cavity and the internal air pressure of the ceramic bead grinder 4 is greater than the set value, the closing stopcock 51 is moved to the inside of the connecting branch pipe 3 by disassembling the connecting rod 12, and the interior of the sampling cavity is connected to the interior of the ceramic bead grinder 4. The negative pressure inside the sampling cavity draws the material inside the ceramic bead grinder 4 into the sampling cavity from the sampling port 5 connected to the connecting port 31 of the connecting branch pipe 3, and enters the sampling tube 6 connected to the end of the sampling branch pipe 2 away from the pressure supply branch pipe 1.

[0038] Therefore, in actual use, when the driving sleeve rod 13 drives the vacuum piston 11 to move, the gas in the sampling cavity can be discharged from the one-way valve 14, gradually reducing the air pressure inside the sampling cavity, and the internal air pressure of the sampling cavity is detected in real time by the negative pressure gauge 32, and the internal air pressure of the sampling cavity obtained by the negative pressure gauge 32 is compared with the internal air pressure of the ceramic bead grinder 4. When the air pressure difference is greater than the set value (0.2 mPa is used in this embodiment), the staff can rotate the disassembly connecting rod 12 to move the closed stopcock 51 to the inside of the connecting branch pipe 3, so as to connect the inside of the sampling cavity with the inside of the ceramic bead grinder 4. The negative pressure inside the sampling cavity sucks the material inside the ceramic bead grinder 4 into the sampling cavity from the sampling port 5 connected to the connecting port 31 of the connecting branch pipe 3, and enters the sampling tube 6 connected to the end of the sampling branch pipe 2 away from the pressure supply branch pipe 1, thereby completing the sampling operation.

[0039] For further information, see Figure 8The end of the disassembly connecting rod 12 close to the connecting branch pipe 3 can be threadedly connected to the closed plug 51, and the closed plug 51 is threadedly connected to the sampling port 5. The threaded connection between the closed plug 51, the sampling port 5 and the disassembly connecting rod 12 has opposite threads, so that the end of the disassembly connecting rod 12 close to the connecting branch pipe 3 can be first screwed into the closed plug 51, and then continue to rotate in the same direction, and the threaded connection between the closed plug 51 and the sampling port 5 can be loosened in the opposite direction, so that the connection between the closed plug 51 and the sampling port 5 can be released, and the closed plug 51 can be moved to the inside of the connecting branch pipe 3 by pulling the disassembly connecting rod 12, and the opposite operation is adopted after the sampling is completed to tighten the closed plug 51 again between the sampling port 5 to complete the operation of connecting and isolating the interior of the sampling cavity with the interior of the ceramic microbead grinder 4.

[0040] For further information, see Figure 5 , Figure 8 The end face of the connection port 31 is provided with a sealing rubber ring 311, and the end face of the connection port 31 is provided with a magnetic connecting piece 312 inside. The end face of each sampling port 5 is provided with an iron connecting piece 52 inside. Magnetic interference can be generated between the magnetic connecting piece 312 and the iron connecting piece 52, and the auxiliary connection port 31 and the sampling port 5 are quickly connected and aligned, so that the auxiliary connection port 31 and the sampling port 5 can be quickly connected and aligned through the mutual attraction of magnetic interference, and the connection port 31 and the sampling port 5 are sealed through the action of the sealing rubber ring 311, and the auxiliary connection port 31 and the sampling port 5 can be conveniently and quickly connected and quickly removed through temporary fixation of the magnetic connection, so that the quantitative sampling device for ceramic microbead processing can continuously sample multiple sampling ports 5 of the ceramic microbead grinder 4, thereby improving the sampling efficiency.

[0041] For further information, see Figure 3-Figure 4 A disassembly handle 121 is provided at the end of the disassembly connecting rod 12 away from the closing cock 51, and the end of the disassembly connecting rod 12 close to the disassembly handle 121 passes through the end of the supply pressure branch pipe 1 away from the connecting branch pipe 3; a holding ring 131 is provided at the end of the driving sleeve rod 13 away from the air extraction piston 11, and the end of the driving sleeve rod 13 close to the holding ring 131 passes through the end of the supply pressure branch pipe 1 away from the connecting branch pipe 3; the end of the disassembly connecting rod 12 close to the disassembly handle 121 passes through the end of the driving sleeve rod 13 away from the air extraction piston 11 and the holding ring 131, so that the holding handle 121 and the holding ring 131 can be disassembled to facilitate the application of force between the disassembly connecting rod 12 and the driving sleeve rod 13 respectively, thereby improving the convenience of use of the quantitative sampling device for ceramic microbead processing.

[0042] For further information, see Figure 1 , Figure 3 , Figure 6A locking sealing ring 61 is provided at the connection between the sampling branch tube 2 and the sampling cylinder 6, and the locking sealing ring 61 is used to lock and seal the sampling branch tube 2 and the sampling cylinder 6; a detection window 62 is provided on the surface of the sampling cylinder 6, and the detection window 62 is made of transparent material; a one-way valve 21 is provided inside the end of the sampling branch tube 2 close to the sampling cylinder 6, and the one-way opening direction of the one-way valve 21 is from the sampling branch tube 2 to the sampling cylinder 6, so that the real-time process of quantitative sampling can be observed through the detection window 62, and the one-way opening direction of the one-way valve 21 is from the sampling branch tube 2 to the sampling cylinder 6, so as to prevent the micro-bead ceramic material sample inside the sampling cylinder 6 from flowing back, thereby effectively ensuring that the quantitatively sampled micro-bead ceramic material sample meets the sampling requirements.

[0043] For further information, see Figure 1-Figure 3 A pressure relief valve 33 is also provided on one side of the connecting branch pipe 3. The pressure relief valve 33 separates the sampling cavity from the outside world. When the pressure relief valve 33 is opened, the sampling cavity is connected to the outside world, and the air pressure inside the sampling cavity is restored to be consistent with the outside air pressure. Therefore, the pressure relief valve 33 can be bidirectionally connected when it is opened, and the air pressure inside the sampling cavity can be restored to the outside air pressure (usually the atmospheric pressure at the current position) so that the next negative pressure sampling operation can be performed.

[0044] Working principle: When in use, the quantitative sampling device for processing ceramic microbeads is connected to any sampling port 5 of the ceramic microbead grinder 4 through the connecting port 31 of the connecting branch pipe 3 in sequence, and then the driving sleeve rod 13 drives the air extraction piston 11 to move inside the pressure supply branch pipe 1, and the gas inside the sampling cavity is gradually discharged through the one-way valve 14 arranged at one end of the pressure supply branch pipe 1 close to the connecting branch pipe 3. In this process, since the disassembly connecting rod 12 and the air extraction piston 11 can slide relative to each other, the disassembly connecting rod 12 will not interfere with the movement process of the driving sleeve rod 13 driving the air extraction piston 11, and in actual application, the disassembly connecting rod 12 and the air extraction piston 11 are sealed in both relative sliding and static states, so that when the driving sleeve rod 13 drives the air extraction piston 11 to move inside the pressure supply branch pipe 1, the air pressure inside the sampling cavity is gradually reduced;

[0045] The internal air pressure of the sampling cavity is detected in real time by the negative pressure gauge 32, and the internal air pressure of the sampling cavity detected by the negative pressure gauge 32 is compared with the internal air pressure of the ceramic bead grinder 4. When the air pressure difference is greater than the set value (0.2 mPa in this embodiment), the disassembly connecting rod 12 is moved, and the end of the disassembly connecting rod 12 close to the connecting branch pipe 3 is first screwed into the closed stopcock 51, and then continued to rotate in the same direction, so that the threaded connection between the closed stopcock 51 and the sampling port 5 can be loosened in the opposite direction, so that the connection between the closed stopcock 51 and the sampling port 5 can be released, and the disassembly connecting rod 12 can be pulled. The closed stopcock 51 moves to the inside of the connecting branch pipe 3, so that the sampling cavity is connected to the inside of the ceramic micro-bead grinder 4 through the sampling port 5. Under the condition that the internal air pressure of the ceramic micro-bead grinder 4 is higher than the air pressure inside the sampling cavity, the ceramic micro-bead material inside the ceramic micro-bead grinder 4 is pressed into the sampling cavity by the air pressure, and gradually enters the sampling tube 6 connected to the end of the sampling branch pipe 2 away from the pressure supply branch pipe 1 for collection. The one-way opening direction of the one-way valve 21 is from the sampling branch pipe 2 to the sampling tube 6, so as to prevent the micro-bead ceramic material sample inside the sampling tube 6 from flowing back, thereby effectively ensuring that the quantitatively sampled micro-bead ceramic material sample meets the sampling requirements;

[0046] The negative pressure condition can be fully utilized to press the ceramic microbead material to be sampled into the sampling tube 6 for sampling, so as to cooperate with the negative pressure production needs of the ceramic microbeads, effectively cope with the negative pressure production environment, and perform sampling operations while avoiding destroying the negative pressure production conditions. The quantitative sampling device for ceramic microbead processing can avoid the conventional sampling inconvenience caused by negative pressure conditions and the need to stop the sampling, and can effectively ensure the continuity of ceramic production under negative pressure conditions, and can also effectively save the time delay caused by stopping the sampling.

[0047] After use, the pressure relief valve 33 can be switched to an open state to connect the sampling cavity with the outside world, so that the air pressure inside the sampling cavity returns to the outside air pressure, so that the next negative pressure sampling operation can be performed.

[0048] Before and after use, the auxiliary connection port 31 and the sampling port 5 are quickly connected and aligned through the mutual attraction of magnetic interference between the magnetic connection piece 312 and the iron connection piece 52, and the connection port 31 and the sampling port 5 are sealed by the sealing rubber ring 311. Through the temporary fixation of the magnetic connection, the auxiliary connection port 31 and the sampling port 5 can be conveniently and quickly connected and removed, which is convenient for the quantitative sampling device for ceramic microbead processing to continuously sample multiple sampling ports 5 of the ceramic microbead grinder 4, thereby improving the sampling efficiency.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative sampling device for ceramic microbead processing, characterized in that: include: A pressure supply branch pipe (1), a sampling branch pipe (2) and a connecting branch pipe (3); One end of the pressure supply branch pipe (1) is in communication with the connecting branch pipe (3), one end of the sampling branch pipe (2) is in communication with an end of the pressure supply branch pipe (1) close to the connecting branch pipe (3), and an end of the sampling branch pipe (2) far from the pressure supply branch pipe (1) is connected to a sampling cylinder (6); A connection port (31) is provided at one end of the connecting branch pipe (3) away from the pressure supply branch pipe (1); the quantitative sampling device for processing ceramic microbeads can be connected in sequence to the various sampling ports (5) of the ceramic microbead grinding machine (4) through the connection port (31) of the connecting branch pipe (3); Each sampling port (5) is provided with a closed cock (51), the pressure supply branch pipe (1) is provided with a pumping piston (11), a disassembly connecting rod (12) is provided through the center of the pumping piston (11), and relative sliding can occur between the disassembly connecting rod (12) and the pumping piston (11); A driving sleeve rod (13) is provided on the side of the air extraction piston (11) away from the connecting branch pipe (3), the disassembly connecting rod (12) passes through the inside of the driving sleeve rod (13), and a one-way valve (14) is provided on one end of the pressure supply branch pipe (1) close to the connecting branch pipe (3); The disassembly connecting rod (12) can be temporarily fixed to the closed stopcock (51), and the closed stopcock (51) can be separated from the sampling port (5) by rotating the disassembly connecting rod (12), and the closed stopcock (51) can be moved into the interior of the connecting branch pipe (3); One end of the disassembling connecting rod (12) close to the connecting branch pipe (3) can be threadedly connected to the closing cock (51), and the closing cock (51) is threadedly connected to the sampling port (5), and the threaded connection between the closing cock (51), the sampling port (5) and the disassembling connecting rod (12) has opposite thread directions.

2. A quantitative sampling device for ceramic microbead processing according to claim 1, characterized in that: The connecting branch pipe (3) is connected to the sampling port (5), and when the closing cock (51) closes the sampling port (5), a sampling cavity exists inside the pressure supply branch pipe (1), the sampling branch pipe (2) and the connecting branch pipe (3) under the separation of the air extraction piston (11); The one-way opening direction of the one-way valve (14) is from the inside of the connecting branch pipe (3) to the outside of the one-way valve (14). During the movement of the air extraction piston (11), the gas in the sampling cavity can be discharged from the one-way valve (14), thereby reducing the gas pressure inside the sampling cavity.

3. A quantitative sampling device for ceramic microbead processing according to claim 2, characterized in that: A negative pressure gauge (32) is provided on one side of the connecting branch pipe (3), and a detection end of the negative pressure gauge (32) extends into the interior of the sampling cavity. The negative pressure gauge (32) is used to detect the internal air pressure of the sampling cavity; When the difference between the internal air pressure of the sampling cavity and the internal air pressure of the ceramic micro-bead grinder (4) detected by the negative pressure gauge (32) is greater than a set value, the closing cock (51) can be moved into the interior of the connecting branch pipe (3) by means of the disassembling connecting rod (12).

4. A quantitative sampling device for ceramic microbead processing according to claim 3, characterized in that: When the difference between the internal air pressure of the sampling cavity and the internal air pressure of the ceramic micro-bead grinder (4) is greater than a set value, the closing stopcock (51) is moved to the inside of the connecting branch pipe (3) by the disassembling connecting rod (12), and the inside of the sampling cavity is connected to the inside of the ceramic micro-bead grinder (4). The negative pressure inside the sampling cavity draws the material inside the ceramic micro-bead grinder (4) into the sampling cavity from the sampling port (5) connected to the connecting port (31) of the connecting branch pipe (3), and enters the sampling cylinder (6) connected to the end of the sampling branch pipe (2) away from the pressure supply branch pipe (1).

5. A quantitative sampling device for ceramic microbead processing according to claim 1, characterized in that: The end surface of the connection port (31) is provided with a sealing rubber ring (311), the end surface of the connection port (31) is provided with a magnetic connection piece (312), and the end surface of each sampling port (5) is provided with an iron connection piece (52), and magnetic interference can be generated between the magnetic connection piece (312) and the iron connection piece (52), thereby assisting the rapid connection and alignment between the connection port (31) and the sampling port (5).

6. A quantitative sampling device for ceramic microbead processing according to claim 1, characterized in that: A disassembly handle (121) is provided at one end of the disassembly connecting rod (12) away from the closing cock (51), and an end of the disassembly connecting rod (12) close to the disassembly handle (121) passes through an end of the pressure supply branch pipe (1) away from the connecting branch pipe (3); A gripping ring (131) is provided at one end of the driving sleeve rod (13) away from the air extraction piston (11); and an end of the driving sleeve rod (13) close to the gripping ring (131) passes through an end of the pressure supply branch pipe (1) away from the connecting branch pipe (3); An end of the disassembly connecting rod (12) close to the disassembly handle (121) passes through an end of the driving sleeve rod (13) away from the air extraction piston (11) and the holding ring (131).

7. A quantitative sampling device for ceramic microbead processing according to claim 1, characterized in that: A locking sealing ring (61) is provided at the connection between the sampling branch tube (2) and the sampling barrel (6), and the locking sealing ring (61) is used to lock and seal the sampling branch tube (2) and the sampling barrel (6); The surface of the sampling tube (6) is provided with a detection window (62), and the detection window (62) is made of a transparent material; A one-way valve (21) is provided inside one end of the sampling branch tube (2) close to the sampling cylinder (6), and the one-way opening direction of the one-way valve (21) is from the sampling branch tube (2) to the sampling cylinder (6).

8. A quantitative sampling device for ceramic microbead processing according to claim 2, characterized in that: A pressure relief valve (33) is also provided on one side of the connecting branch pipe (3), and the pressure relief valve (33) separates the sampling cavity from the outside world. When the pressure relief valve (33) is opened, the sampling cavity is connected to the outside world, and the air pressure inside the sampling cavity is restored to be consistent with the air pressure outside.

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