TWM579210U - Liquid delivery system - Google Patents

Abstract

The present invention relates to a liquid delivery system, which is mainly provided with a pair of diaphragm pumps, wherein the double diaphragm pump is provided with a double suction port and a double discharge port, and the double diaphragm pump is connected to an inlet pipe and a lead-in pipe, the inlet pipe is coupled to the double diaphragm pumping one of the suction and discharge ports, and the lead-in pipe is connected to the other group of the suction and discharge ports of the double diaphragm; The pneumatic mechanism in the double diaphragm pump drives the double diaphragm to be pressurized and contracted, and the discharge port is in one-to-one delivery state, so that the liquid can maintain the same pressure and equal flow rate during the conveying and returning process (volume a balanced conveying function, and a return pipe is arranged between the introduction and the return line, and a control valve is arranged on the return pipe to enable the liquid to be recirculated by the opening of the control valve to achieve liquid replacement Or the effect of pipeline cleaning.

Description

Liquid delivery system

This creation is about a liquid delivery system, especially a liquid delivery system that uses the same pressure and equal flow as the balanced delivery and recovery as the application creator.

Press, the general liquid is delivered through the pump (pump) and through the pipeline to the destination. The above pump is driven by the design of the engine, allowing the pump to act continuously and continuously. The role of the ground suction, but because the engine is usually cumbersome and requires the use of fuel, it may be more suitable for outdoor use without electricity. If it is indoors or easy to obtain electricity, it is mostly through the motor or electromagnetic The way to drive the pump.

However, the existing pump is only suitable for rapid conveying and requires less fluid for conveying quality, and cannot be applied to thick fluids such as printing machines that require slow conveying, such as printing machines; in ink printing, it is generally used in printing machines. The pump is used as a pumping ink, which is what the average operator calls a pneumatic pump, which drives the pumped diaphragm through the air pressure to allow the ink to be transported to the hopper for printing operations, such as As shown in the fifth figure, one end of the pneumatic pump (7) is used to connect the ink cartridge (71), and the other end of the pipeline is directly guided to the printing machine (8) ink supply tube (81), and the ink supply tube (81) Two tangent ink supply wheels (82) are provided at appropriate places, so that the ink supply tube (81) is located just above the tangent of the two ink supply wheels (82), and the two ink supply wheels (82) are in opposite directions. Rotate and rotate from the bottom to the tangent to make the ink ejected from the ink supply tube (81) not flow through the nip between the two ink supply wheels (82), but will be tangent to the two ink supply wheels (82) Turbulence in the groove formed by the upper clamp and contaminated by the phase At the same time, the excess ink is transferred to the two ends of the ink supply wheel (82), and the excess ink will flow to both ends of the groove and flow into the ink collection groove (83) provided at both ends of the groove, and the ink collection groove (83) is connected. a return pipe (84), and returning ink to the ink cartridge (71) to recover ink; usually adopting a natural vertical flow method, letting the ink of the ink collection tank (83) sag in the return pipe (84), and then by hydrostatics The height difference (gravity driven flow) or via the capillary effect (often referred to as capillary permeation) causes the liquid to flow back from the high to the lower end of the ink cartridge (71), thus having the following deficiencies:

1. The return pipe must be increased in diameter (thick pipe). The larger the pipe diameter, the easier the liquid is to conduct, which increases the cost.

2. Although the pipe diameter is large, the flow rate of the thick liquid is generally slow, and it is easy to cause the ink to evaporate and dry.

3. The conveying process is fast and the reflow speed is slow, so that the conveying cannot be balanced.

4. The pipeline cleaning is not easy, and it is necessary to borrow a large amount of clean water to clean the return pipe, because the ink will dry and stick to the pipe wall.

For this reason, the creators have in this regard, and there is a lack of ideals for the use of the prior art. It is deeply felt that there is a need for improvement, and it is improved after specialization research, and it is practiced and revised after a long period of time. Design this creation to achieve a more practical and ideal effect.

The main purpose of this creation is to provide a liquid delivery system, especially a liquid delivery system that uses equal pressure and equal flow as a balanced delivery and recovery.

The main purpose and efficacy of the liquid delivery system of the present invention are achieved by the following specific technical means:

The utility model is mainly provided with a pair of diaphragm pumps, wherein the double diaphragm pump is provided with a double suction port and a double discharge port, and the double diaphragm pump is connected with an introduction pipeline and a return pipeline, and the introduction pipeline And connecting the suction and discharge ports to the double diaphragm pump, and the return line is connected with another set of suction and discharge ports of the double diaphragm; thereby, the pneumatic pump is pumped in the double diaphragm The mechanism drives the double diaphragm to be indented and inhaled, and the discharge port is in one-to-one delivery state, so that the liquid can maintain the same pressure and equal flow (volume) balanced conveying function during the conveying and returning process, and is introduced and A return pipe is arranged between the lead-out pipes, and a control valve is arranged on the return pipe to enable the liquid to be returned and returned by the opening of the control valve to achieve the effect of liquid replacement or pipeline cleaning.

A preferred embodiment of the present liquid delivery system, wherein the double diaphragm pump is internally provided with a pneumatic mechanism, the pneumatic mechanism is respectively provided with first and second diaphragms, and an air inlet portion is provided for introducing the gas. The first and second diaphragms are displaced.

A preferred embodiment of the present liquid delivery system, wherein the double diaphragm pump is provided with a first suction port and a first discharge port corresponding to the first diaphragm end, and forms a first liquid containing space, and the double diaphragm The pump is provided with a second suction port and a second discharge port corresponding to the second diaphragm end, and forms a second liquid containing space, and a ball valve is arranged at the suction and discharge ports.

A preferred embodiment of the liquid delivery system of the present invention, wherein the introduction line includes a first introduction tube and a second introduction tube, and the first introduction tube is connected at one end to the first suction port of the double diaphragm pump Wherein the other end is coupled to a liquid storage unit for introducing a liquid, and the second introduction tube is coupled to the first discharge port of the double diaphragm pump for pumping liquid from the double diaphragm pump Transfer to the required working machine.

In a preferred embodiment of the present invention, the lead-in circuit includes a first return pipe and a second return pipe, and the first return pipe is coupled to the double diaphragm pump a suction port for receiving a liquid, and a second return pipe coupled to the second discharge port of the double diaphragm pump for pumping liquid from the double diaphragm to the In the liquid storage unit.

A preferred embodiment of the present liquid delivery system, wherein the liquid refers to a liquid having a rich consistency, such as oil, ink, sugar liquid, slip, and the like.

In a preferred embodiment of the present liquid delivery system, a return tube is disposed between the second introduction tube and the second return tube, and a control valve is disposed on the return tube.

A preferred embodiment of the present liquid delivery system, wherein the introduction line is the same as the diameter of the return line.

In order to make the technical content, creative purpose and the effect achieved by this creation more complete and clear, please elaborate below, and please refer to the drawings and drawings:

First of all, the actual application of technology and means in this creation, please refer to the first figure, which is a schematic diagram of the architecture of the creation of the liquid delivery system, which includes:

A pair of diaphragm pumps (1) are internally provided with a pneumatic mechanism (10), and the pneumatic mechanisms (10) are respectively provided with first and second diaphragms (11), (12), and an intake portion (101) The first and second diaphragms (11) and (12) are displaced by the introduction of the gas, and the double diaphragm pump (1) is provided with a first suction port corresponding to the first diaphragm (11) end (13). And a first discharge port (14), and forming a first liquid containing space (15), and the double diaphragm pump (1) is provided with a second suction port (16) corresponding to the second diaphragm (12) end And a second discharge port (17), and a second liquid containing space (18), and a ball valve (19) is provided at the suction and discharge ports;

An introduction pipe (2) includes a first introduction pipe (21) and a second introduction pipe (22), and one end of the first introduction pipe (21) is coupled to the double diaphragm pump (1) a suction port (13), and one end of the second introduction pipe (22) is connected to the first discharge port (14) of the double diaphragm pump (1);

a return line (3) includes a first return pipe (31) and a second return pipe (32), and the first return pipe (31) is coupled to the double diaphragm pump ( 1) at the second suction port (16), and the second return pipe (32) is coupled to the second discharge port (17) of the double diaphragm pump (1);

a liquid storage unit (4) for supplying a desired liquid and receiving a return liquid, the liquid storage unit (4) connecting the first introduction tube (21) and the second return tube (32), respectively );

a liquid supply portion (5) corresponding to the liquid required to supply the working machine (B), the liquid supply portion (5) connecting the second introduction tube (21) and the first return tube (32), respectively .

When actually implemented, the present invention can be applied to various working machines for transporting liquids having a thick consistency (such as oil, ink, sugar liquid, slurry, etc.); and using the above liquid delivery system (A) to set a cooperative operation method to implement For the implementation, please refer to the first to third figures. This example is used for the printing machine liquid (ink) conveying. However, this embodiment or the drawing is only an implementable structural state, and does not limit the product structure of the creation or How to use it, as explained in detail below.

First, referring to the first to third figures, the working machine (B) referred to in the liquid delivery system (A) is exemplified herein for ink delivery to a printing press, that is, the printing machine is via a liquid delivery system (A). [wherein the system may use a closed liquid delivery system, a closed doctor blade system or a conventional liquid delivery system, etc.] to supply the ink, and the first figure is shown as an implementation state of the closed liquid delivery system, the system The liquid storage unit (4) containing the ink, the introduction line (2) for conveying the liquid, the return line (3) for recovering the liquid, the connection introduction line (2) and the return line (3) The double diaphragm pump (1) and the liquid supply portion (5) supplying the liquid to the working machine (B) form a closed conveying passage; then, a double diaphragm pump having two sets of suction and discharge ports is provided (1) The double diaphragm pump (1) is internally provided with a pneumatic mechanism (10), and first and second diaphragms (11) and (12) are respectively disposed at two ends of the pneumatic mechanism (10), as in general pumping. Pneumatic mechanism The air inlet portion (101) is configured for the introduction of the gas to drive the first and second diaphragms (11), (12) to be displaced, and the double diaphragm pump (1) is provided with the first end corresponding to the first diaphragm (11) a suction port (13) and a first discharge port (14), and forming a first liquid containing space (15) [ie, a path for the first diaphragm to act], and the double diaphragm pump (1) corresponds to the second a second suction port (16) and a second discharge port (17) are provided at the end of the diaphragm (12), and a second liquid containing space (18) is formed [that is, a path for the second diaphragm to act], and the inhalation is performed in the above And a ball valve (19) is arranged at the discharge port; at the same time, the first suction port (13) and the first discharge port (14) are correspondingly connected with the introduction pipe (2), that is, the introduction pipe (2) comprises There is a first introduction tube (21) and a second introduction tube (22), wherein one end of the first introduction tube (21) is connected to the first suction port (13), and the other end is connected to the liquid containing the ink. Unit (4) and the second introduction tube (22) Connected to the first discharge outlet (14) at the other end is turned to said liquid supply portion (5), said liquid supply portion (5) corresponding to the printing machine (working machine) of the gear mesh. Next, the liquid supply portion (5) is connected to the return line (3) to the double diaphragm pump (1) and the liquid storage unit (4), that is, the return line (3) includes the first a return pipe (31) and a second return pipe (32) connect one end of the first return pipe (31) to the liquid supply portion (5) and the other end to the second suction port (16), and The second return pipe (32) is connected at one end to the second discharge port (17) and at the other end to the liquid storage unit (4).

When in actual operation, the liquid supply portion (5) mainly supplies ink required for the mesh wheel of the printing machine, and scrapes off excess ink adhering to the mesh wheel and is guided back to the pipeline (3) Returning to the liquid storage unit (4); therefore, when the pneumatic mechanism (10) of the double diaphragm pump (1) drives the first and second diaphragms (11), (12) to actuate, the actuating rod ( 102) driving the first diaphragm (11) to the first liquid containing space (15), causing the ink in the first liquid containing space (15) to push the ball valve (19) toward the first discharge port (14), and The ink is transported to the liquid supply portion (5) in the second introduction tube (22), and the ball valve (19) is blocked from closing the first suction port (13) due to the squeeze ink relationship; at the same time, due to the actuating rod (102) Driving the first diaphragm (11) to the first liquid containing space (15), so that the second diaphragm (12) is driven away from the second liquid containing space (18), causing the second liquid containing space (18) to generate a negative pressure Ball valve for the second discharge port (17) 19) being adsorbed while closing the second discharge port (17) while allowing the ball valve (19) to be disengaged from the second suction port (16), and the ink to be recovered in the first return pipe (31) is sucked into the second volume Liquid space (18) [as shown in the second figure].

After the actuation, the actuating rod (102) drives the second diaphragm (12) to the second liquid containing space (18) to push the ink in the second liquid containing space (18) toward the second discharge port (17). The ball valve (19) transports the ink to the liquid storage unit (4) in the second return pipe (32), and also blocks the ball valve (19) from closing the second suction port (16) due to the squeeze ink relationship, and stops The ink in the first return pipe (31); at the same time, the second diaphragm (12) is displaced by the actuating rod (102) to the second liquid containing space (18), so that the first diaphragm (11) is driven away from the first The liquid containing space (15) causes the first liquid containing space (15) to generate a negative pressure so that the ball valve (19) of the first discharge port (14) is adsorbed, and the first discharge port (14) is closed while the ball valve is 19) detaching from the first suction port (13), and the ink introduced into the first introduction tube (21) by the liquid storage unit (4) is sucked into the first liquid container space (15) [as shown in the fourth figure]; As the above continues, one pressure Conveying operation, so that the liquid (ink) in the delivery process and can maintain a loopback transport with pressure equalization flow rate (volume), equilibrium effect.

Please refer to the first to third figures. When the printing machine ink changes color or stops cleaning, the liquid inside the liquid conveying system (A) needs to be cleaned. Therefore, the second inlet tube (22) is A return pipe (6) is disposed between the second return pipe (32), and a control valve (61) is disposed on the return pipe (6); when color changing or cleaning, the first is first The introduction tube (21) is separated from the liquid storage unit (4), and the control valve (61) is opened, and the second introduction tube (22) is connected to the second return tube (32) to make the second The ink in the introduction tube (22) flows through the return pipe (6) into the first return pipe (32), and is actuated via the double diaphragm pump (1) to discharge the original ink of the internal pipe to the reflux. To the liquid storage unit (4), there is no waste problem. After that, the liquid storage unit (4) is replaced with a cleaning liquid or other color ink, and the control valve (61) is closed and then started, so that the liquid is cleaned or color-changed as the above-mentioned pressure-contracting conveying action. .

In addition, as shown in the fourth figure, the present invention is applied to the implementation state of a conventional non-closed liquid delivery system, which comprises a liquid storage unit (4) for containing ink and an introduction line for conveying liquid ( 2), the return line (3) for recovering the liquid, the double diaphragm pump (1) connecting the introduction line (2) and the return line (3), and the liquid supply portion supplying the liquid to the working machine (B) (5), forming a non-closed transport path; and the remaining steps are as described above, and therefore will not be described again.

However, the above-described embodiments or drawings are not intended to limit the product, the structure, or the use of the present invention. Any changes or modifications of the ordinary skill in the art should be considered as not departing from the scope of the invention.

It can be seen from the above components and implementation description that this creation has the following advantages compared with the existing structure:

1. The liquid delivery system of the present invention drives the double diaphragm to be double-inhaled and the discharge port is in one-to-one delivery state by the pneumatic mechanism in the double diaphragm pumping, so that the liquid can be transported and returned. Maintain the same pressure, equal flow (volume) transport, to achieve a smooth delivery of smooth.

2. The liquid delivery system of the present invention, as described above, has the same diameter as the diameter of the lead-in and return pipes, thereby achieving cost-saving effects.

3. The liquid delivery system of the creation can clean the pipeline with a small amount of clean water under the same pressure and equal flow (volume) to save water resources.

4. The liquid delivery system of the invention can adopt the closed liquid delivery system or the general liquid delivery system to maintain the liquid non-volatile, non-leakage and stable supply of liquid.

5. The liquid delivery system of the present invention, through the setting of the return pipe, allows the liquid to be cleaned or replaced without causing waste of liquid, and can also be quickly cleaned and replaced.

In summary, the present embodiment can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law. And the request, the application for a new type of patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

This creation:

(A)‧‧‧Liquid delivery system

(1)‧‧‧Double diaphragm pump

(10) ‧‧‧Pneumatic mechanisms

(101)‧‧‧Intake Department

(102)‧‧‧Action rod

(11) ‧‧‧first diaphragm

(12) ‧‧‧Second diaphragm

(13) ‧ ‧ first suction inlet

(14) ‧‧‧first row of exports

(15)‧‧‧First liquid space

(16)‧‧‧second suction inlet

(17)‧‧‧Second row of exports

(18) ‧‧‧Second liquid space

(19)‧‧‧Ball valves

(2)‧‧‧Introduction pipeline

(21)‧‧‧First introduction tube

(22)‧‧‧Second introduction tube

(3) ‧ ‧ lead return pipeline

(31) ‧‧‧First return tube

(32) ‧‧‧Second return tube

(4) ‧ ‧ liquid storage unit

(5) ‧‧‧liquid supply department

(6) ‧‧‧Return pipe

(61)‧‧‧Control valve

(B) ‧‧‧Working machines

current technology:

(7)‧‧‧Pneumatic pump

(71)‧‧‧Ink cartridge

(8)‧‧‧Printing machine

(81)‧‧‧Ink supply tube

(82)‧‧‧ ink supply wheel

(83)‧‧‧ ink collecting tank

(84) ‧‧‧Return pipe

The first picture: Schematic diagram of the creation of this creation (closed).

The second picture: a schematic diagram of the pump actuation of this creation.

The third picture: the schematic diagram of the pump actuation of this creation.

Figure 4: Schematic diagram of another structure of this creation (non-closed).

Figure 5: Schematic diagram of the prior art architecture.

Claims (4)

A liquid delivery system comprising: a pair of diaphragm pumps, internally provided with a pneumatic mechanism, the pneumatic mechanism respectively provided with first and second diaphragms, and an air inlet portion for introducing the gas to drive the first a second diaphragm displacement actuation, the double diaphragm pump is provided with a first suction port and a first discharge port corresponding to the first diaphragm end, and forms a first liquid containing space, and the double diaphragm pump corresponds to the first The second diaphragm inlet is provided with a second suction port and a second discharge port, and a second liquid containing space is formed, and a ball valve is disposed at the suction port and the discharge port; and an introduction pipe includes a first inlet pipe And a second introduction tube, one end of the first introduction tube is connected to the first suction port of the double diaphragm pump, and one end of the second introduction tube is connected to the first discharge port of the double diaphragm pump a lead-in pipe comprising a first return pipe and a second return pipe, the first return pipe being coupled to the second suction port of the double diaphragm pump, and the second a return line is connected to the second discharge port of the double diaphragm pump; a liquid storage unit for supplying a required liquid and receiving a return liquid, wherein the liquid storage unit is respectively connected to the first introduction pipe and the second return pipe; and a liquid supply portion corresponding to the working machine The liquid supply unit is connected to the second introduction tube and the first return line, respectively. The liquid delivery system of claim 1, wherein a return tube is disposed between the second introduction tube and the second return tube, and a control valve is disposed on the return tube. The liquid delivery system of claim 1, wherein the introduction line and the return line have the same diameter. The liquid delivery system of claim 1, wherein the system is a closed liquid delivery system.