A tobacco shred mixing device for laboratory use

Abstract

The present invention belongs to the technical field of tobacco processing equipment, and particularly relates to a tobacco shred mixing device for laboratory use, which includes a liquid storage bottle and a pressing type spray head installed on the liquid storage bottle. The pressing type spray head includes a connecting cap, a pressing cap, a pump core assembly and a liquid outlet pipe. It also includes a detachable lower tank body and an upper tank body. A first installation hole is opened at the top end of the upper tank body. A limiting plate corresponding to the top end of the upper pipe body is fixedly installed on the pressing cap. The pressing cap passes through the first installation hole. A hemispherical protrusion is integrally formed at the bottom of the liquid storage bottle. A rotating mechanism is installed on the lower tank body. A U-shaped trigger rod is hinged on the rotating mechanism. A base is installed on the lower tank body. An air inlet assembly is installed at the bottom end of the lower tank body. The air inlet assembly is externally connected to a pressurized air source. A plurality of exhaust holes are opened on the upper tank body, which is used to solve the problems that during laboratory mixing, it is mostly manually mixed, resulting in a large workload, low mixing accuracy, and easy uneven mixing.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco processing equipment, and particularly relates to a tobacco shred mixing device for laboratory use. Background Art

[0002] The quality of tobacco leaves is the most important factor affecting the quality of cigarette products. It can be said that good cigarette products rely on good tobacco leaves. China is the largest tobacco leaf producer in the world, but the output of high-quality tobacco leaves is limited and cannot meet the demand of cigarette production. There is a high dependence on imported high-quality tobacco leaves, resulting in a contradiction where high-quality tobacco leaves are in short supply while low-quality tobacco leaves are overstocked and cannot be effectively utilized. With the rapid consumption upgrade of the cigarette product market in recent years, this contradiction has become increasingly prominent and has become the biggest bottleneck restricting the development of China's tobacco industry. To improve the quality of tobacco leaves, biological agents are currently often added to tobacco leaves to change their properties. During the research and development process of the reagents, it is often necessary to take a certain amount of tobacco leaves and add reagents for full mixing to study the influence of the reagents on tobacco shreds.

[0003] At present, most of the equipment for mixing tobacco leaves and reagents are large-scale equipment on the production line and are not suitable for laboratory use. Therefore, mixing in the laboratory is mostly done manually, which has a large workload, low mixing accuracy, and is prone to uneven mixing. If the reagent does not fully combine with the tobacco leaves, it will affect the subsequent data detection. Summary of the Invention

[0004] Based on the problems mentioned in the above background art, the invention provides a tobacco shred mixing device for laboratory use to solve the problems of large workload, low mixing accuracy, and easy uneven mixing when mixing in the laboratory.

[0005] The technical solution adopted by the invention is as follows:

[0006] A tobacco shred mixing device for laboratory use, comprising a liquid storage bottle and a pressing nozzle installed on the liquid storage bottle. The pressing nozzle includes a connecting cap, a pressing cap, a pump core assembly and a liquid outlet pipe. The two ends of the liquid outlet pipe are respectively connected to the pump core assembly and the pressing cap. The liquid outlet pipe passes through the pressing cap. By pressing the pressing cap, the pump core assembly can draw out the liquid in the liquid storage bottle and spray it out through the liquid outlet pipe. The tobacco shred mixing device for laboratory use further includes a lower tank body and an upper tank body which are detachably connected. A first installation hole is opened at the top end of the upper tank body. A limiting plate is fixedly installed on the pressing cap. The pressing cap passes through the first installation hole. A hemispherical protrusion is integrally formed at the bottom of the liquid storage bottle. A rotating mechanism is installed on the lower tank body. A U-shaped trigger rod is hinged on the rotating mechanism. When the U-shaped trigger rod is in a vertical state, the top end of the U-shaped trigger rod presses one end of the liquid storage bottle away from the pressing cap. A base is installed on the lower tank body. The lower end of the lower tank body is hemispherical. By driving the U-shaped trigger rod to rotate through the rotating mechanism, when the trigger rod rotates past the hemispherical protrusion, it squeezes the hemispherical protrusion, forcing the hemispherical protrusion to descend and squeeze the liquid storage bottle to descend. An air inlet assembly is installed at the bottom end of the lower tank body. The air inlet assembly is externally connected to a pressurized air source. A plurality of exhaust holes are opened on the upper tank body.

[0007] Further, the rotating mechanism includes a transmission ring sleeved on the lower tank body. First limiting rings and second limiting rings are respectively installed on the outer wall of the lower tank body at the upper and lower ends of the transmission ring. The two ends of the U-shaped trigger rod are hinged on the transmission ring, and the two ends of the U-shaped trigger rod are located on the same diameter of the transmission ring. A toothed ring is provided on the circumference of the transmission ring. A small stepping motor is installed on the lower tank body. A driving gear is installed on the output shaft of the small stepping motor. The driving gear meshes with the toothed ring. By driving the transmission ring to rotate through the small stepping motor, since the two ends of the U-shaped trigger rod are located on the same diameter of the transmission ring, the U-shaped trigger rod can rotate along the central axis of the lower tank body, which can avoid the U-shaped trigger rod from being skewed during rotation, enabling the U-shaped trigger rod to better squeeze the hemispherical protrusion and making the liquid storage bottle descend.

[0008] Further, the first limiting ring and the second limiting ring are oppositely provided with ball grooves. A plurality of universal balls are installed at the upper and lower ends of the transmission ring. The positions of the universal balls correspond to the ball grooves. By means of the universal balls, the frictional resistance between the transmission ring and the first limiting ring and the second limiting ring is reduced, enabling the transmission ring to rotate better.

[0009] Further, two hemispherical protrusions are integrally formed at the bottom of the liquid storage bottle. The two hemispherical protrusions are located on the same diameter of the bottom of the liquid storage bottle. By providing two hemispherical protrusions, the top end of the U-shaped trigger rod is located between the two hemispherical protrusions. Since the two hemispherical protrusions are located on the same diameter of the bottom of the liquid storage bottle, the U-shaped trigger rod can simultaneously squeeze the two hemispherical protrusions, preferably preventing the liquid storage bottle from tilting during squeezing.

[0010] Furthermore, a connecting frame is installed at the top end of the upper tank body. A limiting sleeve is installed on the connecting frame, and the limiting sleeve is sleeved on the liquid storage bottle. The liquid storage bottle is axially limited by the limiting sleeve to prevent the liquid storage bottle from tilting during descent and damaging the pressing nozzle.

[0011] Furthermore, the air inlet assembly includes an air guide cylinder, a cylinder cover, and an air inlet pipe. A second installation hole is opened at the bottom end of the lower tank body. The air guide cylinder is fixedly inserted into the second installation hole. A plurality of air inlet holes are provided on the air guide cylinder. The cylinder cover is screwed onto the air guide cylinder. The cylinder cover is provided with an air pipe joint, and the air inlet pipe is installed on the air pipe joint. The cylinder cover is convenient to disassemble, so as to facilitate the cleaning of the tobacco powder falling into the air guide cylinder and prevent the air guide cylinder from being blocked.

[0012] Furthermore, the top end of the air guide cylinder and the inner wall of the lower tank body form a hemispherical arc surface. This avoids the formation of dead corners between the air guide cylinder and the inner wall of the lower tank body, preventing the tobacco from being completely blown up.

[0013] Furthermore, an observation window is opened on the lower tank body. A tempered glass plate is embedded in the observation window of the lower tank body. A regulating valve is installed on the air inlet pipe. The situation inside the lower tank body can be seen through the observation window, and the air intake volume can be adjusted through the regulating valve to control the height at which the tobacco is blown up, enabling the reagent to better spray the tobacco.

[0014] Furthermore, a connecting ring is integrally formed on the upper tank body, and a plurality of connecting buckles are installed on the lower tank body. The upper tank body and the lower tank body are connected by buckling the connecting ring with the connecting buckle.

[0015] Advantages of the present invention:

[0016] After putting the tobacco sample into the lower tank body and injecting pressurized air, the pressurized air is injected into the tank body through the air inlet assembly to blow up the tobacco sample in the lower tank body. Since the amount of the experimental tobacco sample is generally small, the tobacco can circulate, fly, and flow in the lower tank body under the action of the air flow. At the same time, under the action of the rotating mechanism, the U-shaped trigger rod can be driven to rotate. When the trigger rod rotates and passes through the hemispherical protrusion, it squeezes the hemispherical protrusion, forcing the hemispherical protrusion to descend and squeeze the liquid storage bottle to descend. Since the pressing cap cannot descend under the action of the limiting plate, when the liquid storage bottle descends, the pump core assembly is triggered to extract the reagent in the liquid storage bottle and spray it out. Since the U-shaped trigger rod intermittently contacts the hemispherical protrusion, the reagent is intermittently sprayed during the process of the tobacco sample circulating and flowing, enabling the tobacco sample to be fully mixed with the reagent, with a good mixing effect. At the same time, manual stirring and mixing are not required, reducing the burden on the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further illustrated by the non-limiting embodiments given in the drawings;

[0018] Figure 1Structural schematic of a tobacco shred mixing device for laboratory use in an embodiment of the present invention Figure 1 ;

[0019] Figure 2 Structural schematic of a tobacco shred mixing device for laboratory use in an embodiment of the present invention Figure 2 ;

[0020] Figure 3 Structural schematic diagram of the connection structure between a liquid storage bottle and a pressing nozzle in an embodiment of the present invention;

[0021] Figure 4 Longitudinal sectional structure schematic of some components of a tobacco shred mixing device for laboratory use in an embodiment of the present invention;

[0022] Figure 5 is Figure 4 Enlarged structure schematic at position A in;

[0023] Figure 6 Longitudinal sectional structure schematic of the lower tank body in an embodiment of the present invention;

[0024] Figure 7 Structural schematic of a pressing nozzle in an embodiment of the present invention;

[0025] Main element symbols are explained as follows:

[0026] Lower tank body 1, base 11, second limiting ring 12, first limiting ring 13, ball groove 14, upper tank body 2, connecting ring 21, exhaust hole 22, connecting frame 231, limiting sleeve 232, connecting buckle 3, liquid storage bottle 41, connecting cap 42, pressing cap 43, limiting plate 44, hemispherical protrusion 45, pump core assembly 46, transmission ring 5, gear ring 51, U-shaped trigger rod 52, small stepping motor 53, driving gear 531, blind hole 55, air guide cylinder 61, air inlet hole 611, cylinder cover 62, air inlet pipe 63, air pipe joint 621. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.

[0028] Embodiment

[0029] As Figures 1 to 7As shown in the figure, a tobacco shred mixing device for laboratory use includes a liquid storage bottle 41 and a pressing type spray head installed on the liquid storage bottle 41. The pressing type spray head includes a connecting cap 42, a pressing cap 43, a pump core assembly 46 and a liquid outlet pipe. The two ends of the liquid outlet pipe are respectively connected to the pump core assembly 46 and the pressing cap 43. The liquid outlet pipe passes through the pressing cap 43. By pressing the pressing cap 43, the pump core assembly 46 can pump out the liquid in the liquid storage bottle 41 and spray it out through the liquid outlet pipe. The tobacco shred mixing device for laboratory use also includes a lower tank body 1 and an upper tank body 2 which are detachably connected. A first installation hole is opened at the top end of the upper tank body 2. A limiting plate 44 is fixedly installed on the pressing cap 43. The pressing cap 43 passes through the first installation hole. A hemispherical protrusion 45 is integrally formed at the bottom of the liquid storage bottle 41. A rotating mechanism is installed on the lower tank body 1. A U-shaped trigger rod 52 is hinged on the rotating mechanism. When the U-shaped trigger rod 52 is in a vertical state, the top end of the U-shaped trigger rod 52 presses one end of the liquid storage bottle 41 away from the pressing cap 43. A base 11 is installed on the lower tank body 1. The lower end of the lower tank body 1 is hemispherical. By driving the U-shaped trigger rod 52 to rotate through the rotating mechanism, when the trigger rod 52 rotates past the hemispherical protrusion 45, the hemispherical protrusion 45 is squeezed, forcing the hemispherical protrusion 45 to descend and squeeze the liquid storage bottle 41 to descend. An air inlet assembly is installed at the bottom end of the lower tank body 1. The air inlet assembly is externally connected to a pressurized air source. A plurality of exhaust holes 22 are opened on the upper tank body 2.

[0030] Specifically, the rotating mechanism includes a transmission ring 5. The transmission ring 5 is sleeved on the lower tank body 1. A first limiting ring 13 and a second limiting ring 12 are respectively installed on the outer wall of the lower tank body 1 at the upper and lower ends of the transmission ring 5. Both ends of the U-shaped trigger rod 52 are hinged on the transmission ring 5, and both ends of the U-shaped trigger rod 52 are located on the same diameter of the transmission ring 5. Among them, a blind hole 55 is opened on the transmission ring 5. Both ends of the U-shaped trigger rod 52 respectively pass through the blind hole 55. A toothed ring 51 is arranged on the circumference of the transmission ring 5. A small stepping motor 53 is installed on the lower tank body 1. A driving gear 531 is installed on the output shaft of the small stepping motor 53. The driving gear 531 meshes with the toothed ring 51. By driving the transmission ring 5 to rotate through the small stepping motor 53, since both ends of the U-shaped trigger rod 52 are located on the same diameter of the transmission ring 5, the U-shaped trigger rod 52 can rotate around the central axis of the lower tank body 1, which can avoid the U-shaped trigger rod 52 from being skewed during the rotation process, so that the U-shaped trigger rod 52 can better squeeze the hemispherical protrusion 45.

[0031] Specifically, in order to reduce the frictional resistance between the transmission ring 5 and the first limiting ring 13 and the second limiting ring 12 and enable the transmission ring 5 to rotate better, ball grooves 14 are opened on both the first limiting ring 13 and the second limiting ring 12. A plurality of universal ball bearings are installed at the upper and lower ends of the transmission ring 5. The positions of the universal ball bearings correspond to the ball grooves 14, and the steel balls of the universal ball bearings are located in the ball grooves 14.

[0032] Specifically, two hemispherical protrusions 45 are integrally formed on the bottom of the liquid storage bottle 41, and the two hemispherical protrusions 45 are located on the same diameter of the bottom of the liquid storage bottle 41. By providing the two hemispherical protrusions 45, the top end of the U-shaped trigger rod 52 is positioned between the two hemispherical protrusions 45. Since the two hemispherical protrusions 45 are located on the same diameter of the bottom of the liquid storage bottle 41, the U-shaped trigger rod 52 can simultaneously squeeze the two hemispherical protrusions 45, preferably preventing the liquid storage bottle 41 from tilting during squeezing.

[0033] Specifically, a connecting frame 231 is installed at the top end of the upper tank body 2, and a limiting sleeve 232 is installed on the connecting frame 231. The limiting sleeve 232 is sleeved on the liquid storage bottle 41. Axial limiting of the liquid storage bottle 41 is carried out through the limiting sleeve 232 to prevent the liquid storage bottle 41 from being deflected during descent and damaging the pressing nozzle.

[0034] Specifically, the air intake assembly includes an air guide cylinder 61, a cylinder cover 62, and an air inlet pipe 63. A second installation hole is opened at the bottom end of the lower tank body 1, and the air guide cylinder 61 is fixedly penetrated through the second installation hole. A plurality of air intake holes 611 are opened on the air guide cylinder 61. The cylinder cover 62 is screwed onto the air guide cylinder 61. An air pipe joint 621 is provided on the cylinder cover 62, and the air inlet pipe 63 is installed on the air pipe joint 621. The cylinder cover 62 is convenient to disassemble, so as to facilitate the cleaning of the tobacco dust falling into the air guide cylinder 61 and prevent the air guide cylinder 61 from being blocked. Among them, the top end of the air guide cylinder 61 and the inner wall of the lower tank body 1 form a hemispherical arc surface. This avoids the formation of dead corners between the air guide cylinder 61 and the inner wall of the lower tank body 1, resulting in incomplete blowing of the tobacco.

[0035] Specifically, an observation window is opened on the lower tank body 1, a toughened glass plate is embedded in the observation window of the lower tank body 1, and a regulating valve 64 is installed on the air inlet pipe 63. The situation inside the lower tank body 1 can be seen through the observation window, and the air intake volume is adjusted through the regulating valve 64 to control the height of the blown tobacco, so that the reagent can better spray the tobacco.

[0036] Specifically, a connecting ring 21 is integrally formed on the upper tank body 2, and a plurality of connecting buckles 3 are installed on the lower tank body 1. The upper tank body 2 and the lower tank body 1 are connected by buckling the connecting ring 21 with the connecting buckle 3.

[0037] During use, first place the tobacco sample into the lower tank body 1 and cover the upper tank body 2. Fix the upper tank body 2 on the lower tank body 1 by buckling the connecting ring 21 with the connecting buckle 3. Then pour the prepared reagent into the liquid storage bottle 41, cover the pressing nozzle, and then invert the liquid storage bottle 41 with the pressing nozzle installed, and insert the pressing cap 43 into the first installation hole (as Figure 2 shown); then press down the liquid storage bottle 41, rotate the U-shaped trigger rod 52 to make it vertical, and then release the liquid storage bottle 41 so that the liquid storage bottle 41 naturally returns to its position and abuts against the U-shaped trigger rod 52 (as Figure 1The installation of the liquid storage bottle is completed. Then the regulating valve 64 is opened to allow pressurized air to be poured into the cavity formed by the lower tank body 1 and the upper tank body 2. Under the action of the exhaust hole 22, the air pressure inside the cavity is balanced with the air pressure outside. The tobacco in the cavity flies up and falls naturally under the action of the airflow, and circulates in the cavity. The intensity of the airflow is changed by the regulating valve 64 to control the flying height of the tobacco, so as to prevent the flying tobacco from impacting the upper tank body 2. Then the small stepping motor 53 is started, and the small stepping motor 53 drives the transmission ring 5 to rotate. Since both ends of the U-shaped trigger rod 52 are located on the same diameter of the transmission ring 5, the U-shaped trigger rod 52 can rotate along the central axis of the lower tank body 1. When the trigger rod 52 rotates and passes through the hemispherical protrusion 45, it squeezes the hemispherical protrusion 45, forcing the hemispherical protrusion 45 to descend and squeeze the liquid storage bottle 41 to descend. Since the pressing cap 43 cannot descend due to the action of the limiting plate 44, the pump core assembly 46 is triggered to extract the reagent in the liquid storage bottle 41 and spray it out when the liquid storage bottle 41 descends. Since the U-shaped trigger rod 52 is in intermittent contact with the hemispherical protrusion 45, the reagent is intermittently sprayed into the circulating tobacco to fully mix the reagent and the tobacco.

[0038] The above is a detailed introduction to a laboratory tobacco mixing device provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A tobacco shred mixing device for laboratory use, comprising a liquid storage bottle (41) and a pressing type spray head installed on the liquid storage bottle (41). The pressing type spray head includes a connecting cap (42), a pressing cap (43), a pump core assembly (46) and a liquid outlet pipe. The two ends of the liquid outlet pipe are respectively connected to the pump core assembly (46) and the pressing cap (43), and the liquid outlet pipe passes through the pressing cap (43). By pressing the pressing cap (43), the pump core assembly (46) can pump out the liquid in the liquid storage bottle (41) and spray it out through the liquid outlet pipe. It is characterized in that: The tobacco shred mixing device for laboratory also includes a lower tank body (1) and an upper tank body (2) which are detachably connected. A first mounting hole is opened at the top end of the upper tank body (2). A limiting plate (44) is fixedly mounted on the pressing cap (43). The pressing cap (43) is passed through the first mounting hole. A hemispherical protrusion (45) is integrally formed at the bottom of the liquid storage bottle (41). A rotating mechanism is installed on the lower tank body (1). A U-shaped trigger rod (52) is hinged on the rotating mechanism. When the U-shaped trigger rod (52) is in a vertical state, the top end of the U-shaped trigger rod (52) presses one end of the liquid storage bottle (41) away from the pressing cap (43). A base (11) is installed on the lower tank body (1). The lower end of the lower tank body (1) is hemispherical. An air inlet assembly is installed at the bottom end of the lower tank body (1). The air inlet assembly is externally connected to a pressurized air source. A plurality of exhaust holes (22) are opened on the upper tank body (2). The rotating mechanism includes a transmission ring (5). First limiting rings (13) and second limiting rings (12) are respectively installed on the outer wall of the lower tank body (1) at the upper and lower ends of the transmission ring (5). The two ends of the U-shaped trigger rod (52) are hinged on the transmission ring (5), and the two ends of the U-shaped trigger rod (52) are located on the same diameter of the transmission ring (5). A toothed ring (51) is provided on the circumference of the transmission ring (5). A small stepping motor (53) is installed on the lower tank body (1). A driving gear (531) is installed on the output shaft of the small stepping motor (53). The driving gear (531) meshes with the toothed ring (51). A connecting ring (21) is integrally formed on the upper tank body (2). A plurality of connecting buckles (3) are installed on the lower tank body (1).

2. The tobacco shred mixing device for laboratory use according to claim 1, wherein: Ball grooves (14) are oppositely opened on the first limiting ring (13) and the second limiting ring (12). A plurality of universal balls are installed at the upper and lower ends of the transmission ring (5). The positions of the universal balls correspond to the ball grooves (14).

3. The tobacco shred mixing device for laboratory use according to claim 1, wherein: Two hemispherical protrusions (45) are integrally formed at the bottom of the liquid storage bottle (41). The two hemispherical protrusions (45) are located on the same diameter of the bottom of the liquid storage bottle (41).

4. The tobacco shred mixing device for laboratory use according to claim 3, wherein: A connecting frame (231) is installed at the top end of the upper tank body (2). A limiting sleeve (232) is installed on the connecting frame (231). The limiting sleeve (232) is sleeved on the liquid storage bottle (41).

5. The tobacco shred mixing device for laboratory use according to claim 1, wherein: The air inlet assembly includes an air guide cylinder (61), a cylinder cover (62) and an air inlet pipe (63). A second mounting hole is opened at the bottom end of the lower tank body (1). The air guide cylinder (61) is fixedly passed through the second mounting hole. A plurality of air inlet holes (611) are opened on the air guide cylinder (61). The cylinder cover (62) is screwed on the air guide cylinder (61). The cylinder cover (62) is provided with an air pipe joint (621). The air inlet pipe (63) is installed on the air pipe joint (621).

6. The tobacco shred mixing device for laboratory use according to claim 5, wherein: The top end of the air guide cylinder (61) and the inner wall of the lower tank body (1) form a hemispherical arc surface.

7. The tobacco shred mixing device for laboratory use according to claim 6, characterized in that: An observation window is provided on the lower tank body (1), a toughened glass plate is embedded in the observation window of the lower tank body (1), and a regulating valve (64) is installed on the air inlet pipe (63).

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