Automatic developing solution adding device

Abstract

The utility model provides an automatic developing solution adding device which comprises a developing cylinder, the top of the developing cylinder is provided with a dispensing groove and an adding groove, one side of the developing cylinder is fixedly provided with a water pump, the dispensing groove and the adding groove are communicated with each other through the water pump, the top of the developing cylinder is fixedly provided with a concentration meter, and the concentration meter is connected with the developing cylinder. The concentration meter is in signal connection with the water pump, one side of the developing cylinder is fixedly provided with a water tank, and the top of the water tank is provided with a water supplementing mechanism; and the water replenishing mechanism comprises a water pumping barrel fixedly connected to one side of the developing cylinder. The utility model relates to the technical field of developing solutions. According to the automatic developing solution adding device, by arranging the water supplementing mechanism, the developing solution can intermittently enter the dispensing tank to dilute the concentration of the developing solution, and when the concentration detected by the concentration meter meets the standard, a PLC module arranged in the concentration meter can start a water pump to pump the developing solution in the dispensing tank into the adding tank, so that the effect of automatic dispensing is achieved; and cylinder opening developing concentration abnormity is avoided.

Description

Technical Field

[0001] This utility model relates to the field of developer technology, specifically to an automatic developer adding device. Background Technology

[0002] Photographic developer is a chemical agent used in developing photographic images. Its main components include sulfuric acid, nitric acid, benzene, methanol, silver halides, boric acid, and hydroquinone. It is toxic and should not come into direct contact with skin as it will cause severe corrosion. Photographic developer is a solution formulated from developing agents and other chemicals used to develop exposed photosensitive materials.

[0003] The automatic developer addition device disclosed in patent application CN214810200U includes a base on which a developing chamber is mounted. A mixing tank is located on one side of the developing chamber. A mounting plate is positioned on top of the mixing tank, and a stirring motor is mounted on the surface of the mounting plate. A stirring shaft is fixedly connected to the output end of the stirring motor, with one end of the stirring shaft movably passing through the mounting plate and inserted into the mixing tank. Multiple elastic rods are fixedly connected to the bottom of the mixing tank, and positioning blocks are vertically connected to each elastic rod. The positioning blocks are fixedly connected to the surface of the base, and the elastic rods movably pass through the positioning blocks. A push rod motor is mounted at the bottom of the base, and the push rod of the push rod motor movably passes through the base. This automatic developer addition device, by using a dedicated mixing tank, eliminates the need for mixing within the developing chamber, thus avoiding interference with the operation of other parts within the developing chamber. The separate mixing tank also allows for more uniform mixing of the raw materials, saving significant manpower and resources.

[0004] However, the above-mentioned device still has the following problems during implementation:

[0005] During the development process, sodium carbonate powder is usually added manually to the tank and stirred before being added to the developing tank. This operation is highly susceptible to human error and can easily lead to abnormalities such as crystallization, uneven stirring, and measurement errors, resulting in abnormal developing concentrations when the tank is opened and posing potential quality risks to production. Utility Model Content

[0006] The purpose of this invention is to provide an automatic developer addition device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An automatic developer addition device includes a developing tank, the top of which has a mixing tank and an addition tank, a water pump is fixedly installed on one side of the developing tank, the mixing tank and the addition tank are connected to each other through the water pump, a concentration meter is fixedly installed on the top of the developing tank and is signal-connected to the water pump, a water tank is fixedly installed on one side of the developing tank, and a water replenishment mechanism is provided on the top of the water tank.

[0009] The water replenishment mechanism includes a water pump fixedly connected to one side of the developing tank. One side of the water pump is fixedly connected to a water inlet pipe via a first one-way valve. One end of the water inlet pipe is fixedly connected to one side of the water tank. The top of the water pump is fixedly connected to a water outlet pipe via a second one-way valve. A motor is fixedly installed on the top of the water tank. The motor is signal-connected to a concentration meter. A lead screw is fixedly connected to the output end of the motor. A moving frame is driven through the surface of the lead screw. A push rod is fixedly connected to the top of the moving frame. The top of the push rod extends through the interior of the water pump and is fixedly connected to a push block. An agitation mechanism is provided inside the mixing tank.

[0010] Preferably, the stirring mechanism includes two stirring rods disposed inside the drug preparation tank, three stirring blades are fixedly connected to the surface of the stirring rods, one end of the stirring rod extends through to one side of the developing tank and is fixedly connected to a gear, and both sides of the moving frame are fixedly connected to gear plates that cooperate with the gears.

[0011] Preferably, a connecting hole for use with a stirring rod is provided on one side of the developing tank, and a sealing ring is fixedly connected to the inner wall of the connecting hole.

[0012] Preferably, one end of the stirring rod is provided with a bearing seat, and is rotatably connected to the inner wall of the mixing tank through the bearing seat.

[0013] Preferably, the surface of the stirring blade is provided with filter holes, and the number of filter holes is several.

[0014] Preferably, a piston is fixedly connected to the top of the push block, and the piston is made of rubber.

[0015] Preferably, a sliding rod is fixedly connected to the top of the water tank, and a sliding block is slidably connected to the surface of the sliding rod. One side of the sliding block is fixedly connected to one side of the moving frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, by setting a water replenishment mechanism, allows for the addition of a certain amount of water to the preparation tank beforehand. Then, bagged sodium carbonate powder is poured into the preparation tank. The concentration meter detects whether the concentration of the developer in the preparation tank reaches the set value. When the concentration is too high, the built-in PLC module of the concentration meter starts the motor, which drives the lead screw to rotate. Simultaneously, the lead screw drives the moving frame, causing the moving frame and sliding block to move up and down along the trajectory of the sliding rod. When the moving frame moves downwards, it drives the push rod and push block downwards. At this time, the water pump is under negative pressure, and water from the water tank enters the water pump through the inlet pipe. When the moving frame, push rod, and push block move upwards, they squeeze the water in the water pump, causing it to enter the preparation tank through the outlet pipe to dilute the developer concentration. When the concentration meter detects that the concentration meets the standard, the built-in PLC module of the concentration meter starts the water pump to draw the developer from the preparation tank into the addition tank, achieving automatic preparation and avoiding abnormal concentrations during initial development.

[0018] 2. By setting up a stirring mechanism, this utility model can drive the toothed plate to move up and down while the moving frame moves up and down. When the toothed plate contacts the gear, it will drive the gear, stirring rod and stirring blade to rotate around the bearing seat, so that the water entering the chemical tank through the water replenishment mechanism can quickly mix with the developer, avoiding the situation of adding too much water and causing the developer to be too low. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a perspective view of the main structure of this utility model from the side.

[0021] Figure 3 This is a perspective view of the main structure of this utility model in cross-section;

[0022] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a perspective view of the water replenishment mechanism and the stirring mechanism of this utility model;

[0024] Figure 6 This is a perspective view of a partial structure of the water replenishment mechanism of this utility model;

[0025] Figure 7 This is a perspective view of the cross-section of the pumping cylinder of this utility model.

[0026] In the diagram: 1. Developing tank; 2. Chemical mixing tank; 3. Addition tank; 4. Water pump; 5. Concentration meter; 6. Water tank; 7. Pump; 8. Inlet pipe; 9. Sliding block; 10. Outlet pipe; 11. Motor; 12. Lead screw; 13. Moving frame; 14. Push rod; 15. Push block; 16. Stirring rod; 17. Stirring blade; 18. Gear; 19. Gear plate; 20. Connecting hole; 21. Sealing ring; 22. Bearing seat; 23. Filter hole; 24. Piston; 25. Sliding rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 7 This utility model provides a technical solution: Example 1:

[0029] An automatic developer addition device includes a developing tank 1, a reagent preparation tank 2 and an addition tank 3 on the top of the developing tank 1, a water pump 4 fixedly installed on one side of the developing tank 1, the reagent preparation tank 2 and the addition tank 3 being interconnected through the water pump 4, a concentration meter 5 fixedly installed on the top of the developing tank 1, the concentration meter 5 being signal-connected to the water pump 4, and a water tank 6 fixedly installed on one side of the developing tank 1, with a water replenishment mechanism on the top of the water tank 6.

[0030] The water replenishment mechanism includes a water pump 7 fixedly connected to one side of the developing tank 1. One side of the water pump 7 is fixedly connected to a water inlet pipe 8 via a first one-way valve. One end of the water inlet pipe 8 is fixedly connected to one side of the water tank 6. The top of the water pump 7 is fixedly connected to a water outlet pipe 10 via a second one-way valve. A motor 11 is fixedly installed on the top of the water tank 6. The motor 11 is signal-connected to the concentration meter 5. A lead screw 12 is fixedly connected to the output end of the motor 11. A moving frame 13 is driven to the surface of the lead screw 12. A push rod 14 is fixedly connected to the top of the moving frame 13. The top of the push rod 14 extends into the interior of the water pump 7 and is fixedly connected to a push block 15. An agitation mechanism is provided inside the mixing tank 2.

[0031] In this embodiment, considering that during the development process, sodium carbonate powder is typically added manually to a tank and stirred before being added to the developing tank 1, this operation is prone to human error, crystallization, uneven stirring, and measurement errors, leading to abnormal developing concentrations and potential quality issues. Therefore, a water replenishment mechanism is implemented. A certain amount of water is pre-added to the mixing tank 2, and then the bagged sodium carbonate powder is poured into it. The concentration meter 5 detects whether the concentration of the developing solution in the mixing tank 2 reaches the set value. When the concentration is too high, the built-in PLC module of the concentration meter 5 activates the motor 11, which in turn drives the lead screw 12. Simultaneously, the lead screw 12 rotates, moving the moving frame 13. The transmission mechanism causes the moving frame 13 and the sliding block 9 to move up and down along the trajectory of the sliding rod 25. When the moving frame 13 moves downward, it will drive the push rod 14 and the push block 15 to move downward. At this time, the water pump 7 is under negative pressure, and the water in the water tank 6 will enter the water pump 7 through the water inlet pipe 8. When the moving frame 13, the push rod 14 and the push block 15 move upward, they will squeeze the water in the water pump 7 and make it enter the chemical mixing tank 2 from the water outlet pipe 10 to dilute the concentration of the developer. When the concentration meter 5 detects that the concentration meets the standard, the built-in PLC module of the concentration meter 5 will start the water pump 4 to pump the developer in the chemical mixing tank 2 into the addition tank 3, thus achieving the function of automatic chemical mixing and avoiding abnormal concentration of the developer when the tank is opened.

[0032] This solution addresses the problem that during developer processing, sodium carbonate powder is typically added manually to a tank and stirred before being added to the developing tank 1. This operation is prone to human error, crystallization, uneven stirring, and measurement errors, leading to abnormal developing concentrations and potential quality risks during production.

[0033] It should be noted that the first check valve is a valve that can only allow water to enter the pumping cylinder 7, and the second check valve is a valve that can only allow water to enter the outlet pipe 10.

[0034] A piston 24 is fixedly connected to the top of the push block 15. The piston 24 is made of rubber.

[0035] In this embodiment, by setting the piston 24, a sealed cavity can be formed inside the water pumping cylinder 7. When the push block 15 drives the piston 24 to move downward, the water pumping cylinder 7 is under negative pressure, and the water in the water tank 6 will enter the water pumping cylinder 7 through the water inlet pipe 8. When the push block 15 drives the piston 24 to move upward, the water can enter the medicine mixing tank 2 through the water outlet pipe 10.

[0036] A sliding rod 25 is fixedly connected to the top of the water tank 6, and a sliding block 9 is slidably connected to the surface of the sliding rod 25. One side of the sliding block 9 is fixedly connected to one side of the moving frame 13.

[0037] In this embodiment, by setting the sliding rod 25 and the sliding block 9, when the lead screw 12 rotates to transmit power to the moving frame 13 and other structures, the moving frame 13 and other structures can only move up and down along the trajectory of the sliding rod 25 and the sliding block 9, thus limiting the movement trajectory. Example 2:

[0038] Based on Embodiment 1, the stirring mechanism in this embodiment includes two stirring rods 16 disposed inside the drug preparation tank 2. Three stirring blades 17 are fixedly connected to the surface of the stirring rods 16. One end of the stirring rod 16 extends through to one side of the developing tank 1 and is fixedly connected to a gear 18. Both sides of the moving frame 13 are fixedly connected to toothed plates 19 that cooperate with the gear 18.

[0039] In this embodiment, by setting a stirring mechanism, the moving frame 13 can move up and down while driving the toothed plate 19 to move up and down. When the toothed plate 19 contacts the gear 18, it will drive the gear 18, stirring rod 16 and stirring blade 17 to rotate around the bearing seat 22, so that the water entering the mixing tank 2 through the water replenishment mechanism can quickly mix with the developer, avoiding the situation of adding too much water and causing the developer to be too low.

[0040] It should be noted that when the concentration of the concentration sensor 5 is appropriate, the motor 11 will also be turned off.

[0041] A connecting hole 20 is provided on one side of the developing tank 1 to cooperate with the stirring rod 16, and a sealing ring 21 is fixedly connected to the inner wall of the connecting hole 20.

[0042] In this embodiment, by providing a connection hole 20 and a sealing ring 21, an entry gap can be provided for the stirring rod 16 to enter the dosing tank 2, while the sealing ring 21 can prevent the developing solution from leaking out through the connection hole 20.

[0043] One end of the stirring rod 16 is provided with a bearing seat 22, and is rotatably connected to the inner wall of the mixing tank 2 through the bearing seat 22.

[0044] In this embodiment, by setting the bearing seat 22, the structure such as the stirring rod 16 can be supported, making it more stable and smooth when it drives the stirring blade 17 to rotate.

[0045] The surface of the stirring blade 17 is provided with filter holes 23, and the number of filter holes 23 is several.

[0046] In this embodiment, by setting the filter hole 23, the resistance encountered by the stirring blade 17 during rotation can be reduced, and the stirring effect can be further improved.

[0047] Working principle: A certain amount of water is added to the mixing tank 2 beforehand, and then bagged sodium carbonate powder is poured into the mixing tank 2. The concentration meter 5 will detect whether the concentration of the developing solution in the mixing tank 2 has reached the set value. When the concentration is too high, the built-in PLC module of the concentration meter 5 will start the motor 11 to rotate. The motor 11 will drive the lead screw 12 to rotate. While the lead screw 12 is rotating, it will drive the moving frame 13, causing the moving frame 13 and the sliding block 9 to move up and down along the trajectory of the sliding rod 25. When the moving frame 13 moves downward, it will drive the push... When rod 14 and push block 15 move downwards, the water pump 7 is under negative pressure. Water from water tank 6 enters the water pump 7 through inlet pipe 8. When moving frame 13, push rod 14 and push block 15 move upwards, they will squeeze the water in water pump 7 and make it enter the chemical mixing tank 2 through outlet pipe 10 to dilute the developer concentration. When the concentration meter 5 detects that the concentration meets the standard, the built-in PLC module of the concentration meter 5 will start the water pump 4 to pump the developer from the chemical mixing tank 2 into the addition tank 3, thus achieving the function of automatic chemical mixing and avoiding abnormal development concentration when the tank is opened.

[0048] As the moving frame 13 moves up and down, it drives the toothed plate 19 to move up and down as well. When the toothed plate 19 contacts the gear 18, it will drive the gear 18, stirring rod 16 and stirring blade 17 to rotate around the bearing seat 22, so that the water entering the mixing tank 2 through the water replenishment mechanism can quickly mix with the developer, avoiding the situation where too much water is added and the developer level is too low.

[0049] It should be noted that the concentration meter 5, the water pump 4, and the motor 11 are existing devices or equipment in the prior art, or devices or equipment that can be implemented in the prior art. Furthermore, the specific composition and principle of the power supply of the concentration meter 5, the water pump 4, and the motor 11 are clear to those skilled in the art, and therefore will not be described in detail.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic developer adding device including a developing tank (1), characterized by: The top of the developing tank (1) is provided with a drug preparation tank (2) and an addition tank (3). A water pump (4) is fixedly installed on one side of the developing tank (1). The drug preparation tank (2) and the addition tank (3) are connected to each other through the water pump (4). A concentration meter (5) is fixedly installed on the top of the developing tank (1). The concentration meter (5) is connected to the water pump (4) by signal. A water tank (6) is fixedly installed on one side of the developing tank (1). A water replenishment mechanism is provided on the top of the water tank (6). The water replenishment mechanism includes a water pump (7) fixedly connected to one side of the developing tank (1). One side of the water pump (7) is fixedly connected to an inlet pipe (8) through a first one-way valve. One end of the inlet pipe (8) is fixedly connected to one side of the water tank (6). The top of the water pump (7) is fixedly connected to an outlet pipe (10) through a second one-way valve. A motor (11) is fixedly installed on the top of the water tank (6). The motor (11) is signal-connected to a concentration meter (5). A lead screw (12) is fixedly connected to the output end of the motor (11). A moving frame (13) is drivenly connected to the surface of the lead screw (12). A push rod (14) is fixedly connected to the top of the moving frame (13). The top of the push rod (14) extends into the interior of the water pump (7) and is fixedly connected to a push block (15). An agitation mechanism is provided inside the drug preparation tank (2).

2. The automatic developer adding device according to claim 1, characterized by: The stirring mechanism includes two stirring rods (16) disposed inside the drug preparation tank (2). Three stirring blades (17) are fixedly connected to the surface of the stirring rods (16). One end of the stirring rod (16) extends through to one side of the developing tank (1) and is fixedly connected to a gear (18). Both sides of the moving frame (13) are fixedly connected to toothed plates (19) that cooperate with the gears (18).

3. The automatic developing solution adding apparatus according to claim 2, characterized by: The developing tank (1) has a connection hole (20) on one side for use with the stirring rod (16), and a sealing ring (21) is fixedly connected to the inner wall of the connection hole (20).

4. The automatic developing solution adding apparatus according to claim 2, characterized by: One end of the stirring rod (16) is provided with a bearing seat (22), and is rotatably connected to the inner wall of the medicine preparation tank (2) through the bearing seat (22).

5. The automatic developing solution adding apparatus according to claim 2, characterized by: The surface of the stirring blade (17) is provided with filter holes (23), and the number of filter holes (23) is several.

6. The automatic developing solution adding apparatus according to claim 1, wherein: A piston (24) is fixedly connected to the top of the push block (15), and the piston (24) is made of rubber.

7. The automatic developer adding device according to claim 1, characterized by: A sliding rod (25) is fixedly connected to the top of the water tank (6), and a sliding block (9) is slidably connected to the surface of the sliding rod (25). One side of the sliding block (9) is fixedly connected to one side of the moving frame (13).

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