CN112844213A

CN112844213A - Non-contact solution proportioning device

Info

Publication number: CN112844213A
Application number: CN202110157266.7A
Authority: CN
Inventors: 丁文芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-05-28

Abstract

The invention relates to a non-contact solution proportioning device, which effectively solves the problems that the solution is not suitable for pumping and cannot be continuously proportioned; the technical scheme for solving the problem is that the device comprises a shell, wherein the shell is divided into a feeding area and a gathering area, and the feeding area is divided into a left bin and a right bin; the top and the bottom of the left bin and the right bin are respectively provided with a top through hole and a bottom through hole; guide rods which can move up and down and reset upwards are arranged in the left bin and the right bin, and the lower ends of the guide rods can plug the bottom through holes; the guide rod is sleeved with a foam block which can move up and down, and the upper end surface of the foam block is fixed with a plug; the plug can plug the top through hole; the left side and the right side of the shell are respectively provided with a material storage tank, the material storage tanks are connected with a material inlet pipe and a material outlet pipe, and the two material outlet pipes are respectively connected with a left material bin and a right material bin; the two feeding pipes are connected to a high-pressure air source through the reversing device, so that the solution cannot enter the interior of the pump, and corrosion and blockage are avoided.

Description

Non-contact solution proportioning device

Technical Field

The invention relates to the technical field of liquid medicine mixing, in particular to a non-contact solution proportioning device.

Background

During chemical production, medicine production or production of part of cleaning agents, various solutions are required to be proportioned, and the proportioning is often required to be accurately controlled according to the required solution proportion so as to achieve various physicochemical properties of the mixed solution; at present, most of solutions are proportioned manually by users, proportion deviation of the proportioning is often caused by the difference between the users and tools in the proportioning process, when different solutions are proportioned, the proportioning needs to be measured again according to proportion requirements, and the proportioning efficiency is greatly reduced.

In addition, most of the prior proportioning methods collect two solutions in the same container, then the collected container is emptied, and proportioning is performed again, so that continuous proportioning operation cannot be performed, and the production efficiency is affected. Due to the different physicochemical properties of the solutions, not all solutions are suitable for pumping, which may cause clogging or corrosion of the pump. This therefore results in an increase in the difficulty of the work; there is therefore a need to solve the above problems.

Disclosure of Invention

In view of the above situation, the present invention provides a non-contact solution proportioning device, which can effectively solve the problems that the solution is not suitable for pumping and cannot be continuously proportioned.

The technical scheme for solving the problem is that the device comprises a shell, wherein the middle part of the shell is divided into a feeding area and a gathering area, wherein the feeding area is divided into a left bin and a right bin; push plates are arranged inside the left bin and the right bin, and a screw rod is rotatably connected to the push plates; the outer end of the screw rod penetrates through the side wall of the shell, and the screw rod is rotatably connected with the side wall of the shell; the top and the bottom of the left bin and the right bin are respectively provided with a top through hole and a bottom through hole; guide rods which can move up and down and reset upwards are arranged in the left bin and the right bin, and the lower ends of the guide rods can plug the bottom through holes; the guide rod is sleeved with a foam block which can move up and down, and the upper end surface of the foam block is fixed with a plug; the plug can plug the top through hole;

the left side and the right side of the shell are respectively provided with a material storage tank, the material storage tanks are connected with a material inlet pipe and a material outlet pipe, and the two material outlet pipes are respectively connected with a left material bin and a right material bin; the two feeding pipes are connected to a high-pressure air source through a reversing device;

the shell is provided with a reversing device, the reversing device consists of an outer cover and a rotating block in the outer cover, a vertical high-pressure air pipe is arranged at the middle position of the rotating block, a transverse inner pipe connected with the high-pressure air pipe is arranged in the rotating block, the outer cover is provided with a left outlet and a right outlet, and the two outlets are respectively connected with two feeding pipes; after the rotating block rotates, the inner pipe can correspond to one of the feeding pipes.

The bottom of the gathering area is provided with a branch pipe, a baffle is arranged at the position of the branch pipe, the baffle swings under the control of an electric cylinder, a liquid level switch is arranged inside the gathering area, and after the liquid level reaches a certain height, the liquid level switch controls the electric cylinder to swing the baffle and open the branch pipe.

The liquid level switch is a floating ball liquid level switch, and after the liquid level reaches a set value, a signal is output to enable the electric cylinder to contract, and the baffle plate is lifted.

The upper end surface of the rotating block is coaxially provided with a one-way wheel, the shell is provided with a cylinder body, the interior of the cylinder body is provided with a piston and a piston rod which can move back and forth, and the rear end of the piston rod is in a rack shape which can be meshed with the one-way wheel; the piston rod is sleeved with a spring; a limiting block positioned at the rear side of the piston is fixed on the inner wall of the cylinder body, and the front side of the cylinder body is connected with the high-pressure air pipe.

The bottom of the rotating block is fixed with a first permanent magnet, the upper end of each guide rod is fixed with a second permanent magnet, after the first permanent magnet rotates to the position above the second permanent magnet, the guide rods move downwards, and the lower ends of the guide rods block the bottom through holes; the first permanent magnet is positioned right below the inner tube; meanwhile, a pressure spring positioned between the second permanent magnet and the upper side plate of the shell is sleeved on the guide rod.

The high-pressure air pipe is connected to the air pump.

The middle part of the high-pressure air pipe is connected with a rotary sealing joint.

The invention comprises the following steps:

1. the solution does not enter the interior of the pump, avoiding corrosion and clogging.

2. The proportion is suitable, quick and convenient to adjust.

3. Can continuously realize continuous proportioning.

4. Only one pump is needed to work, and energy is saved.

Drawings

FIG. 1 is a front sectional view of the present invention.

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a partially enlarged view of fig. 3 at B.

Fig. 5 is a top sectional view of the reversing device.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present invention includes a housing 1, the middle portion of the housing 1 is divided into a feeding area and a collecting area 2, wherein the feeding area is divided into a left bin 3 and a right bin 4; push plates 5 are arranged inside the left bin 3 and the right bin 4, and a screw rod 6 is rotatably connected to the push plates 5; the outer end of the screw 6 penetrates through the side wall of the shell 1, and the screw 6 is rotatably connected with the side wall of the shell 1; the top and the bottom of the left bin 3 and the right bin 4 are respectively provided with a top through hole 7 and a bottom through hole 8; guide rods 9 which can move up and down and reset upwards are arranged in the left bin 3 and the right bin 4, and the lower ends of the guide rods 9 can plug the bottom through holes 8; the guide rod 9 is sleeved with a foam block 10 capable of moving up and down, and a plug 11 is fixed on the upper end face of the foam block 10; the plug 11 can plug the top through hole 7;

the left side and the right side of the shell 1 are respectively provided with a material storage tank 12, the material storage tanks 12 are connected with a material inlet pipe 13 and a material outlet pipe 14, and the two material outlet pipes 14 are respectively connected with the left bin 3 and the right bin 4; the two feeding pipes 13 are connected to a high-pressure air source through a reversing device;

the shell 1 is provided with a reversing device, the reversing device consists of an outer cover 15 and a rotating block 16 inside the outer cover 15, a vertical high-pressure air pipe 17 is arranged at the middle position of the rotating block 16, a transverse inner pipe 18 connected with the high-pressure air pipe 17 is arranged inside the rotating block 16, the outer cover 15 is provided with a left outlet 19 and a right outlet 19, and the two outlets 19 are respectively connected with two feeding pipes 13; after the rotating block 16 rotates, the inner tube 18 can correspond to one of the feeding tubes 13.

In order to facilitate the discharge of the mixed liquid in a timed and automatic manner, the bottom of the collection area 2 is provided with a branch pipe 20, a baffle 21 is arranged at the branch pipe 20, the baffle 21 swings under the control of an electric cylinder 22, a liquid level switch 23 is arranged inside the collection area 2, and after the liquid level reaches a certain height, the liquid level switch 23 controls the electric cylinder 22 to swing the baffle 21 and open the branch pipe 20.

In order to realize the control of the liquid level, the liquid level switch 23 is a float liquid level switch 23, and when the liquid level reaches a set value, a signal is output to contract the electric cylinder 22 and lift the baffle 21.

In order to realize that the reversing device can change a through-flow mode, the upper end surface of the rotating block 16 is coaxially provided with a one-way wheel 24, the shell 1 is provided with a cylinder body 25, the inside of the cylinder body 25 is provided with a piston and a piston rod 26 which can move back and forth, and the rear end of the piston rod 26 is in a rack shape which can be meshed with the one-way wheel 24; the piston rod 26 is sleeved with a spring; a limiting block 27 positioned at the rear side of the piston is fixed on the inner wall of the cylinder body 25, and the front side of the cylinder body 25 is connected with the high-pressure air pipe 17.

In order to enable the guide rods 9 to move up and down after the reversing device rotates, the bottom of the rotating block 16 is fixedly provided with a first permanent magnet 28, the upper end of each guide rod 9 is fixedly provided with a second permanent magnet 29, after the first permanent magnet rotates to the position above the second permanent magnet 29, the guide rods 9 move downwards, and the lower ends of the guide rods 9 block the bottom through holes 8; the first permanent magnet 28 is located directly below the inner tube 18; meanwhile, the guide rod 9 is sleeved with a compression spring between the second permanent magnet 29 and the upper side plate of the shell 1.

In order to achieve the generation of high pressure gas, the high pressure gas pipe 17 is connected to a gas pump.

In order to avoid the excessive rotation of the high-pressure air pipe 17, a rotary sealing joint is connected to the middle part of the high-pressure air pipe 17.

When the invention is used, the left storage tank 12 of the left and right storage tanks 12 is used for storing the solution A, and the left storage tank 12 is used for storing the solution B; according to the instruction of an operation manual, by rotating the screw rods 6 on the left bin 3 and the right bin 4, the push plates 5 in the left bin 3 and the right bin 4 move left and right, so that the proportion of the left bin 3 and the right bin 4 is adjusted; the proportion is the proportion of the solution A and the solution B. Because the proportion is adjusted by adopting the rotation of the screw 6, the proportion can be adjusted at any time and any place, and the adjusted proportion can be kept unchanged; when other solution ratio adjustments are made, the feed pipe 13 may be directly placed in the corresponding solution.

When the screw 6 rotates, the cross section of the feeding chamber is determined, so that the feeding amount of the screw 6 per rotation circle can be definitely obtained according to the specification of the screw 6, and the volumes of the left bin 3 and the right bin 4 can be calculated according to the rotation number of the screw 6.

Of course, the threshold value of the liquid level switch 23, namely the liquid level height, needs to be adjusted; the device adopts the mode of alternately adding the solution A and the solution B for mixing; therefore, the liquid level in the pooling region 2 may be adjusted to the sum of the individual volumes of the solution A and the solution B.

Then the air pump is opened to carry out mixing and feeding operation; referring to fig. 1 and 5, the reversing device is in the state shown in fig. 5.a, the inner tube 18 inside the rotor corresponds to the left feed tube 13, i.e. the high pressure gas tube 17 can be introduced into the storage tank 12 of the solution a; while the feed pipe 13 for the solution B is in a blocked state; meanwhile, the first permanent magnet 28 is positioned right below the inner tube 18, so that the first permanent magnet 28 is positioned right above the second permanent magnet 29, and under the action of homopolar repulsion, the guide rod 9 in the left bin 3 is positioned at the lowest part of the shape stroke, so that the lower end of the guide rod 9 at the left side blocks the bottom through hole 8 of the left bin 3;

therefore, high-pressure gas can be introduced into the left material storage tank 12, so that the solution A enters the left material bin 3; with the immersion of the solution A, the liquid level rises, so that the foam block 10 is raised, and finally the foam block 10 blocks the top through hole 7; so that the left bin 3 is completely filled, and the high-pressure gas cannot be continuously filled at the moment.

When the high-pressure gas can be filled into the material storage tank 12, the material storage tank 12 can share part of the pressure, so that the pressure inside the cylinder 25 is not large enough; however, when the pressure in the storage tank 12 cannot be divided, the pressure inside the cylinder 25 will suddenly increase, which will move the piston rod 26 backward and push the one-way wheel 24 and the rotator to rotate. By presetting the length of the cylinder 25, the one-way wheel 24 can only rotate one half turn at a time in one way. The symmetry transformation of the interior of the reversing device is realized. I.e. the inner tube 18 inside the rotor will now correspond to the feed tube 13 on the right reservoir 12.

Along with the change of the position of the rotating body, the first permanent magnet 28 also rotates to the right side, at the moment, the first permanent magnet 28 can not extrude the guide rod 9 in the left bin 3 any more, and the guide rod 9 in the left bin 3 can reset upwards under the action of a pressure spring on the guide rod 9; and the guide rod 9 in the right storage bin 4 can block the bottom through hole 8 of the right storage bin 4. Thus, the solution A enters the collecting area 2 through the bottom through hole 8, and simultaneously, after the liquid level of the solution A in the left bin 3 drops, the through hole 7 at the top of the left bin 3 is also opened; so that the solution A in the left bin 3 is completely released.

So far, the operation is a cycle, and then the inside of the right bin 4 is consistent with the steps, and the charging and discharging operation is carried out.

After the solution B is filled into the gathering area 2, the liquid level in the gathering area 2 reaches the set value of the liquid level switch 23, the liquid level switch 23 sends a signal at the moment, the electric cylinder 22 is controlled to contract, the baffle 21 at the position of the branch pipe 20 swings, the mixed liquid with the adjusted proportion in the gathering area 2 is discharged from the branch pipe 20, the controller is set for time delay, the electric cylinder 22 resets again after a certain time, and the branch pipe 20 is plugged again.

It is worth noting that when the mixed liquid is discharged outwards from the collecting area 2, the left bin 3 is in an original state, so that the mixed liquid can be discharged and the solution A is injected into the left bin 3, and after the mixed liquid is discharged, the solution A is poured into the collecting area 2, and seamless switching is achieved. When proportioning is not needed, the high-pressure air pipe 17 is closed, and the valves on the pipelines are closed.

The device has the following advantages:

1. the high-pressure air pipe 17 is used for inflating liquid, so that the corrosion and blockage in the pump caused by the direct contact of the solution and the inside of the pump when the traditional pump is used for conveying liquid are avoided; the way of utilizing gas to suck as medium is realized, the contactless transport solution is realized.

2. Utilize left feed bin 3 and right feed bin 4 to work mutually in coordination, realized the continuity of operation, need not shut down, high-pressure gas pipe 17 open always can, simplified the operation, saved power.

3. The proportion is adjusted by utilizing the rotary screw 6, the application range is wide, the adjustment is convenient, and stepless adjustment can be realized; the proportion can be kept unchanged after adjustment, and the adjustment can be carried out anytime and anywhere.

4. The device mainly needs one pump to synchronously absorb two solutions, so that the consumption of the pump is saved, and the energy is saved.

Claims

1. A non-contact solution proportioning device comprises a shell (1), and is characterized in that the middle part of the shell (1) is divided into a feeding area and a collecting area (2), wherein the feeding area is divided into a left bin (3) and a right bin (4); push plates (5) are arranged inside the left bin (3) and the right bin (4), and a screw rod (6) is rotatably connected to the push plates (5); the outer end of the screw rod (6) penetrates through the side wall of the shell (1), and the screw rod (6) is rotatably connected with the side wall of the shell (1); the top and the bottom of the left bin (3) and the right bin (4) are respectively provided with a top through hole (7) and a bottom through hole (8); guide rods (9) which can move up and down and reset upwards are arranged in the left bin (3) and the right bin (4), and the lower ends of the guide rods (9) can plug the bottom through holes (8); a foam block (10) capable of moving up and down is sleeved on the guide rod (9), and a plug (11) is fixed on the upper end surface of the foam block (10); the plug (11) can plug the top through hole (7);

the left side and the right side of the shell (1) are respectively provided with a storage tank (12), the storage tanks (12) are connected with a feeding pipe (13) and a discharging pipe (14), and the two discharging pipes (14) are respectively connected with the left bin (3) and the right bin (4); the two feeding pipes (13) are connected to a high-pressure air source through a reversing device;

the shell (1) is provided with a reversing device, the reversing device consists of an outer cover (15) and a rotating block (16) inside the outer cover (15), a vertical high-pressure air pipe (17) is arranged in the middle of the rotating block (16), a transverse inner pipe (18) connected with the high-pressure air pipe (17) is arranged inside the rotating block (16), the outer cover (15) is provided with a left outlet (19) and a right outlet (19), and the two outlets (19) are respectively connected with two feeding pipes (13); after the rotating block (16) rotates, the inner pipe (18) can correspond to one of the feeding pipes (13).

2. A contactless solution proportioning device according to claim 1, characterized in that a branch pipe (20) is provided at the bottom of the collecting region (2), a baffle (21) is provided at the branch pipe (20), the baffle (21) is controlled by an electric cylinder (22) to swing, a liquid level switch (23) is provided inside the collecting region (2), and after the liquid level reaches a certain height, the liquid level switch (23) controls the electric cylinder (22) to swing the baffle (21) to open the branch pipe (20).

3. A contactless solution proportioning device according to claim 1, characterized in that the level switch (23) is a float level switch (23), and when the liquid level reaches a set value, a signal is output to cause the electric cylinder (22) to contract and the baffle (21) to lift.

4. A contactless solution proportioning device according to claim 1, characterized in that the upper end face of the rotating block (16) is coaxially provided with a one-way wheel (24), the housing (1) is provided with a cylinder body (25), a piston and a piston rod (26) which can move back and forth are arranged inside the cylinder body (25), and the rear end of the piston rod (26) is in a rack shape which can be engaged with the one-way wheel (24); a spring is sleeved on the piston rod (26); a limiting block (27) positioned at the rear side of the piston is fixed on the inner wall of the cylinder body (25), and the front side of the cylinder body (25) is connected with the high-pressure air pipe (17).

5.A non-contact solution proportioning device according to claim 1, wherein a first permanent magnet (28) is fixed at the bottom of the rotating block (16), a second permanent magnet (29) is fixed at the upper end of each guide rod (9), after the first permanent magnet rotates to the position above the second permanent magnet (29), the guide rods (9) move downwards, and the lower ends of the guide rods (9) block the bottom through holes (8); the first permanent magnet (28) is positioned right below the inner tube (18); meanwhile, the guide rod (9) is sleeved with a pressure spring between the second permanent magnet (29) and the side plate on the shell (1).

6. A contact-less solution proportioning device according to claim 1, wherein the high pressure air pipe (7) is connected to an air pump.

7. A solution proportioning device without contact according to claim 1, characterized in that the middle of the high pressure air pipe (7) is connected with a rotary sealing joint.