Automatic water replenishing system for capsule production line

Abstract

An automatic water replenishing system for a capsule production line belongs to the technical field of hollow capsule production equipment and comprises a central water tank, a circulating water channel and a water replenishing pipe, and the central water tank is provided with a water inlet pipe, an exhaust hole, a heating device, a liquid level device, a temperature detector and a control system; the circulating water channel comprises a water pump, a water supply pipe and a water return pipe, a plurality of water replenishing pipes are arranged, a manual control valve is arranged at the upper part of each water replenishing pipe, a second electromagnetic valve is arranged at the lower part of each water replenishing pipe, and a viscometer is arranged in the glue dipping groove and is electrically connected with the second electromagnetic valve; the automatic water replenishing device has the beneficial effects that the automatic control central water tank water replenishing system is arranged to replace the existing mode that a kettle is mounted on a water replenishing pipe to continuously replenish water into the liquid storage tank after being filled with purified water, so that not only is the water replenishing effect improved, but also the labor is saved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow capsule production equipment, in particular to an automatic water replenishing system for a capsule production line. Background Art

[0002] The hollow capsule is made up of a body and a cap. The capsule production process consists of glue making, production, light picking, printing, sterilization, packaging and other processes. The glue production process usually includes: core rod oiling, glue dipping, drying, demoulding, cutting, fitting and other processes. Glue dipping is a crucial part of capsule production. The concentration, temperature and flow rate of the glue in the glue dipping tank will affect the wall thickness, top thickness, uniformity and particle weight difference of the capsule, which is one of the key links in controlling the production quality of capsule shells.

[0003] The so-called dipping glue is to use the dipping glue device on the capsule production line to slowly immerse the capsule mold into the glue liquid and then slowly leave the glue liquid to form a layer of glue film on the mold. When dipping glue, the glue liquid is usually placed in a dipping glue tank, and it needs to be constantly stirred to keep the temperature and flow rate of the glue liquid uniform. In order to keep the temperature and flow rate of the glue liquid in the dipping glue tank stable and uniform, the existing dipping glue tank generally uses a water supply pipe to continuously replenish water to the storage tank. The amount of water replenished and the speed of water replenishment are determined according to the amount and speed of water evaporation in the glue liquid. In this way, the temperature, flow rate and concentration of the glue liquid are comprehensively maintained to ensure that the wall thickness, top thickness, uniformity and particle weight of the produced hollow capsules meet the requirements.

[0004] The existing water replenishment work is to fill a kettle with pure water and then connect it to the water replenishment pipe to continuously replenish water into the liquid storage tank. After the water in the kettle is used up, it is removed and replaced with another kettle filled with pure water. This will temporarily stop water supply in actual production, affecting the quality of the glue liquid in production. Utility Model Content

[0005] The technical problem to be solved by the utility model is to address the above-mentioned problem by adopting a water replenishing system of a central water tank, through which the glue liquid in each production line is replenished with water, and the pure water in the central water tank can be added at any time to maintain the necessary water level, so that the water replenishing of the glue liquid in the glue dipping tank will not be interrupted, thereby avoiding affecting the quality of the glue liquid.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is an automatic water replenishing system for a capsule production line, which includes a central water tank, a circulating water channel and a water replenishing pipe. The central water tank is provided with a water inlet pipe, an exhaust hole, a heating device, a liquid level device, a temperature detector and a control system. The water inlet pipe is connected and arranged in the middle of the central water tank, and a first electromagnetic valve is arranged on the water inlet pipe. The exhaust hole is connected and arranged at the top of the central water tank. The heating device includes an upper heater and a lower heater. The upper heater is connected to the upper part of the central water tank through an upper heating pipe, and the lower heater is connected to the lower part of the central water tank through a lower heating pipe. The liquid level device includes an upper liquid level detector and a lower liquid level detector. The upper liquid level detector is installed on the upper part of the inner wall of the central water tank, and the lower liquid level detector is installed on the lower part of the inner wall of the central water tank. The temperature detector is installed on the lower part of the inner wall of the central water tank. The control system is electrically connected to the first electromagnetic valve, the upper heater, the lower heater, the upper liquid level detector, the lower liquid level detector and the temperature detector. When in use, under the overall control of the control system, when the temperature is lower than the set temperature, the heating device starts to heat until the water temperature in the central water tank reaches the set temperature. When the water level in the central water tank is equal to or lower than the height of the upper liquid level detector, the upper heater stops heating. When the water level in the central water tank is equal to the height of the lower liquid level detector, the first electromagnetic valve is activated and the water inlet pipe starts to supply water.

[0007] The circulating water channel includes a water pump, a water supply pipe and a water return pipe. The water pump is connected and installed at the lower part outside the central water tank, and the water pump is externally connected to a power supply. The water supply pipe is connected to the water pump and is suspended above each capsule production line from the top of the production workshop, and multiple U-shaped suspension pipes are connected in series on the pipeline of the water supply pipe, and each U-shaped suspension pipe corresponds to one production line. The water return pipe is suspended at the top of the production workshop, its first end is connected to the end of the water supply pipe, and its second end is connected to the central water tank. The water pump, the water supply pipe and the water return pipe in the circulating water channel and the central water tank form a water circulation loop. After the water pump is started, the water in the water circulation loop circulates continuously.

[0008] There are multiple water replenishing pipes. The upper end of each water replenishing pipe is connected to the bottom of a U-shaped suspension pipe, and the lower end is connected to the dipping tank on the capsule production line. A manual control valve is arranged on the upper part of the water replenishing pipe for connecting the U-shaped suspension pipe, and a second electromagnetic valve is arranged on the lower part for connecting the dipping tank. A viscometer is arranged in the dipping tank, and the viscometer is electrically connected to the second electromagnetic valve. When the viscometer measures that the glue liquid concentration in the dipping tank is higher than the set concentration, the second electromagnetic valve is opened for 2 - 3 seconds for water replenishment.

[0009] The second end of the water return pipe is connected to the upper side wall of the central water tank; the pipe orifice on the upper side wall of the central water tank is at the same height as the upper liquid level detector; this can avoid or reduce splashing of water inside the central water tank.

[0010] Further, the water pump is electrically connected to the control system, and the control system controls the flow of water in the water circulation loop.

[0011] Further, the second solenoid valve is electrically connected to the control system respectively, and the control system controls the opening and closing of the second solenoid valve.

[0012] Further, the viscometer is electrically connected to the control system, and the control system controls the opening and closing time of the water circulation loop and each solenoid valve according to the viscosity information of the glue measured by the viscometer.

[0013] The beneficial effect of the present utility model is that an automatically controlled central water tank water replenishing system is provided, which replaces the existing method of continuously replenishing water into the liquid storage tank by filling a water kettle with pure water and then connecting it to the water replenishing pipe. This not only improves the water replenishing effect,

[0014] but also saves labor and greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the automatic water replenishing system of the capsule production line of the present utility model.

[0016] In the figure: 1. Central water tank, 2. Circulation water channel, 3. Water replenishing pipe, 4. Water inlet pipe, 5. Exhaust hole, 6. Heating device, 7. Liquid level device, 8. Temperature detector, 9. Control system, 10. First solenoid valve, 11. Upper heater, 12. Lower heater, 13. Upper heating pipe, 14. Lower heating pipe, 15. Upper liquid level detector, 16. Lower liquid level detector, 17. Water pump, 18. Water delivery pipe, 19. Water return pipe, 20. U-shaped suspension pipe, 21. Glue dipping tank, 22. Manual control valve, 23. Second solenoid valve, 24. Viscometer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be further described below in conjunction with the embodiments.

[0018] As shown in the figure, an automatic water replenishing system for a capsule production line is installed, which includes a central water tank 1, a circulating water channel 2, and a water supply pipe 3. First, a water supply room is separately set up next to the capsule production workshop, and the central water tank 1 is installed in the water supply room, so as to avoid the water vapor discharged from the central water tank 1 affecting the humidity of the capsule production workshop. Then, a water inlet pipe 4, an exhaust hole 5, a heating device 6, a liquid level device 7, a temperature detector 8, and a control system 9 are provided on the central water tank 1. The water inlet pipe 4 is connected to the tank body and is arranged in the middle of the central water tank 1. A first electromagnetic valve 10 is provided on the water inlet pipe 4. The exhaust hole 5 is connected and arranged at the top of the central water tank 1. The upper opening of the exhaust hole 5 does not directly face upward but bends to the side, so as to avoid foreign objects from falling in and also avoid corroding the roof. The heating device 6 includes an upper heater 11 and a lower heater 12. The upper heater 11 is connected to the upper part of the central water tank 1 through an upper heating pipe 13, and the lower heater 12 is connected to the lower part of the central water tank 1 through a lower heating pipe 14. The liquid level device 7 includes an upper liquid level detector 15 and a lower liquid level detector 16. The upper liquid level detector 15 is installed on the upper part of the inner wall of the central water tank 1, and the lower liquid level detector 16 is installed on the lower part of the inner wall of the central water tank 1. The temperature detector 8 is installed on the lower part of the inner wall of the central water tank 1. Then, the control system 9 is electrically connected to the first electromagnetic valve 10, the upper heater 11, the lower heater 12, the upper liquid level detector 15, the lower liquid level detector 16, and the temperature detector 8. Then, the circulating water channel 2 is installed. The circulating water channel 2 includes a water pump 17, a water supply pipe 18, and a water return pipe 19. The water pump 17 is connected to the tank body and is installed at the lower part outside the central water tank 1. The water pump 17 is externally powered. The water supply pipe 18 is connected to the water pump 17 and extends upward to be close to the roof of the water supply room and then bends along the roof to lead to the capsule production workshop, and is suspended above each capsule production line from the top of the production workshop. On the pipeline of the water supply pipe 18, a U-shaped suspension pipe 20 is suspended above each capsule production line, and the U-shaped suspension pipe 20 is in series with the water supply pipe 18, that is, multiple U-shaped suspension pipes 20 are connected in series on the path of the water supply pipe 18, and each U-shaped suspension pipe 20 corresponds to one production line. The water return pipe 19 is suspended at the top of the production workshop. The head end of the water return pipe 19 is connected to the tail end of the water supply pipe 18, and the tail end of the water return pipe 19 is connected to the central water tank 1. Specifically, the tail end of the water return pipe 19 is connected to the upper side wall of the central water tank 1, and the pipe orifice on the upper side wall of the central water tank 1 is at the same height as the upper liquid level detector 15. The water pump 17, the water supply pipe 18, and the water return pipe 19 in the circulating water channel 2 and the central water tank 1 form a water circulation loop. After the water pump 17 is started, the water in the water circulation loop circulates continuously.Then install each water replenishing pipe 3. There are multiple water replenishing pipes 3. The upper end of each water replenishing pipe 3 is connected to the bottom of a U-shaped suspension pipe 20, and the lower end is connected to the dipping glue tank 21 on the capsule production line. A manual control valve 22 is provided in the upper part of each water replenishing pipe 3 for connecting the U-shaped suspension pipe 20. A second solenoid valve 23 is provided in the lower part of the water replenishing pipe 3 for connecting the dipping glue tank 21. A viscometer 24 is provided in the dipping glue tank 21, and the viscometer 24 is electrically connected to the second solenoid valve 23. When the viscometer 24 measures that the glue liquid concentration in the dipping glue tank 21 is higher than the set concentration, the second solenoid valve 23 is opened for 2.3 seconds for water replenishment.

[0019] Furthermore, the water pump 17, the second solenoid valve 23 and the viscometer 24 are respectively electrically connected to the control system 9. The control system 9 controls the water pump 17 to control the water flow in the water circulation loop. At the same time, the control system 9 controls the opening and closing of the second solenoid valve 23. The control system 9 controls the opening and closing time of the water circulation loop and each solenoid valve according to the glue liquid viscosity information measured by the viscometer 24.

[0020] During use, under the overall control of the control system, when the temperature is lower than the set temperature, the heating device 6 starts heating until the water temperature in the central water tank 1 reaches the set temperature. When the water level in the central water tank 1 is equal to or lower than the height of the upper liquid level detector 15, the upper heater 11 stops heating. When the water level in the central water tank 1 is equal to the height of the lower liquid level detector 16, the first solenoid valve 10 is activated and the water inlet pipe 4 starts to intake water. When the glue liquid viscosity in the dipping glue tank 21 is higher than the set viscosity, the water pump 17 is activated and the water flow in the water circulation loop starts to circulate. The manual control valve 22 is activated, and water flows from the U-shaped suspension pipe 20 into the water replenishing pipe 3. The second solenoid valve 23 is activated, and water flows from the water replenishing pipe 3 into the dipping glue tank 21 to replenish water to the glue liquid in the dipping glue tank 21. The water supply stops automatically after 2 - 3 seconds, and the water replenishment is completed.

Claims

1. An automatic water replenishment system for a capsule production line, characterized in that The invention comprises a central water tank (1), a circulating water channel (2) and a water supply pipe (3); the central water tank (1) is provided with a water inlet pipe (4), an exhaust hole (5), a heating device (6), a liquid level device (7), a temperature measuring device (8) and a control system (9); the water inlet pipe (4) is arranged in a communication manner in the middle of the central water tank (1); the water inlet pipe (4) is provided with a first solenoid valve (10); the exhaust hole (5) is arranged in a communication manner at the top of the central water tank (1); the heating device (6) comprises an upper heater (11) and a lower heater (12); the upper heater (11) is connected to the upper part of the central water tank (1) through an upper heating pipe (13); The lower heater (12) is connected to the lower part of the central water tank (1) through the lower heating pipe (14); the liquid level device (7) comprises an upper liquid level detector (15) and a lower liquid level detector (16); the upper liquid level detector (15) is installed on the upper part of the inner wall of the central water tank (1); the lower liquid level detector (16) is installed on the lower part of the inner wall of the central water tank (1); and the temperature detector (8) is installed on the lower part of the inner wall of the central water tank (1); the control system (9) is electrically connected to the first solenoid valve (10), the upper heater (11), the lower heater (12), the upper liquid level detector (15), the lower liquid level detector (16), and the temperature detector (8); The circulating water channel (2) comprises a water pump (17), a water supply pipe (18) and a water return pipe (19); the water pump (17) is connected to and installed at the lower part of the outer side of the central water tank (1); the water pump (17) is externally connected to a power supply; the water supply pipe (18) is connected to the water pump (17) and is suspended from the top of the production workshop above each capsule production line, and a plurality of U-suspended pipes (20) are connected in series on the water supply pipe (18), and each U-suspended pipe (20) corresponds to a production line; the water return pipe (19) is suspended on the top of the production workshop, and its head end is connected to the end of the water supply pipe (18), and its end is connected to the central water tank (1); A plurality of water supply pipes (3) are provided, the upper end of each water supply pipe (3) is connected to the bottom of a U-shaped hanging pipe (20), and the lower end is connected to a glue dipping tank (21) on a capsule production line. A manual control valve (22) is provided at the upper part of the water supply pipe (3), and a second electromagnetic valve (23) is provided at the lower part. A viscometer (24) is provided in the glue dipping tank (21), and the viscometer (24) is electrically connected to the second electromagnetic valve (23).

2. The automatic water replenishment system for capsule production line according to claim 1 is characterized in that The end of the water return pipe (19) is connected to the upper side wall of the central water tank (1); its pipe opening on the upper side wall of the central water tank (1) is flush with the height of the upper liquid level detector (15).

3. The automatic water replenishing system for capsule production line according to claim 2 is characterized in that The water pump (17) is electrically connected to the control system (9).

4. The automatic water replenishing system for capsule production line according to claim 3 is characterized in that The second solenoid valve (23) is electrically connected to the control system (9).

5. The automatic water replenishment system for capsule production line according to claim 4 is characterized in that The viscometer (24) is electrically connected to the control system (9).

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