CN114735255B

CN114735255B - Quantitative filling machine for liquid filling

Info

Publication number: CN114735255B
Application number: CN202210353003.8A
Authority: CN
Inventors: 豆保安
Original assignee: Jiangsu Jade Machinery Technology Co ltd
Current assignee: Jiangsu Jade Machinery Technology Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2023-05-19
Anticipated expiration: 2042-04-06
Also published as: CN114735255A

Abstract

The invention discloses a quantitative filling machine for liquid filling, which relates to the technical field of quantitative filling and comprises a filling barrel, wherein a liquid storage mechanism is fixedly arranged at the bottom of the filling barrel and comprises a weighing cavity, a weighing piston is slidably arranged on the weighing cavity, a liquid injection telescopic barrel and a residual telescopic barrel are fixedly arranged on the weighing piston, the top ends of the liquid injection telescopic barrel and the residual telescopic barrel are respectively and fixedly connected with a liquid injection cavity and a residual recovery pipe, the top ends of the liquid injection cavities are communicated with the bottom end of the filling barrel, and a liquid injection one-way valve is fixedly arranged on the liquid injection cavities. According to the invention, the weighing cavity is arranged to control the disposable filling quantity, so that the filling precision is improved; multiple groups of filling barrels can be set for independent control; by using a mechanical structure for control, the use of electromagnetic valves is reduced, thereby improving the stability of control.

Description

Quantitative filling machine for liquid filling

Technical Field

The invention relates to the technical field of quantitative filling, in particular to a quantitative filling machine for liquid filling.

Background

A liquid quantitative filling mechanism, which is a device for filling liquid materials into packages. At present, a cylinder is generally adopted to extrude liquid materials in a filling pump to finish filling of the liquid materials, the existing quantitative liquid filling equipment generally adopts a cylinder, and quantitative liquid extraction and automatic quantitative liquid split charging equipment for filling of the liquid materials are carried out through a piston. The quantitative filling mechanism comprises a sanitary-grade diaphragm quantitative valve and a metering filling mechanism. The sanitary diaphragm metering valve comprises a metering valve body and a telescopic diaphragm sleeve. The quantitative valve body comprises a liquid input pipe, a liquid output pipe, a quantitative valve sleeve and two end plates, and a metering material inlet and a metering material outlet are arranged on the side wall of the quantitative valve sleeve; the telescopic diaphragm sleeve is positioned in the quantitative valve body, edges of openings at two ends of the telescopic diaphragm sleeve are respectively fixed on the two end plates, and the liquid input pipe and the liquid output pipe are respectively communicated with the openings at two ends of the telescopic diaphragm sleeve; the metering filling mechanism is connected with a metering material inlet and a metering material outlet through a conveying pipe. The filling machine comprises a charging bucket, a filling head, a quantitative filling mechanism and two sanitary-grade diaphragm valves, but the prior art does not solve the technical problems.

Disclosure of Invention

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a quantitative liquid filling machine is used in liquid filling, includes the filling barrel, the bottom fixed mounting stock solution mechanism of filling barrel, stock solution mechanism is including weighing the chamber, and slidable mounting weighs the piston on weighing the chamber, and fixed mounting has a notes liquid telescopic cylinder and a surplus telescopic cylinder on weighing the piston, and the top of its notes liquid telescopic cylinder and a surplus telescopic cylinder is fixedly connected with notes liquid chamber and surplus recovery tube respectively, and the top of its notes liquid chamber communicates with the bottom of filling barrel to fixed mounting has notes liquid check valve on the notes liquid chamber.

Preferably, the filling barrel and the weighing cavity are fixedly arranged on the filling barrel support, the filling barrel support is fixedly arranged on the base, the top of the filling barrel is provided with a liquid injection port, the inner wall of the filling barrel is slidably provided with a pressurizing piston, the pressurizing piston is fixedly provided with a pressurizing one-way valve, the position of the pressurizing piston deviating from the circle center is fixedly provided with a pressurizing lead screw, the outer surface of the pressurizing lead screw is fixedly connected with a pressurizing nut block, the pressurizing nut block is rotatably arranged on the filling barrel, and the pressurizing nut block is fixedly provided with a nut pulling piece.

Preferably, three surplus barrels are fixedly mounted on the base, the inner walls of the three surplus barrels are all connected with surplus pistons in a sliding mode, surplus springs are fixedly mounted between the surplus pistons and the bottom surfaces of the inner walls of the surplus barrels, the three surplus barrels are internally communicated with the three groups of weighing cavities through uniform surplus recovery pipes, the bottom ends of the three groups of weighing cavities are communicated through four-way pipes, and electromagnetic valves are fixedly connected to the joints of the four-way pipes and the weighing cavities and used for controlling liquid in the weighing cavities to flow into the four-way pipes.

Preferably, the base is fixedly provided with an pressure storage barrel support, the pressure storage barrel support is fixedly provided with a pressure storage barrel, the inner wall of the pressure storage barrel is slidably connected with a pressure storage piston, a pressure storage spring is fixedly arranged between the pressure storage piston and the ground of the inner wall of the pressure storage barrel, the bottom end of the pressure storage barrel is fixedly provided with a filter tip, and the inside of the pressure storage barrel is communicated with the inside of the corresponding weighing cavity through three pressure storage pipes.

Preferably, a driving support frame is arranged above the pressure storage barrel, the driving support frame is fixedly connected with the pressure storage barrel support, a top control frame is fixedly connected to the driving support frame, a central belt wheel is rotatably arranged in the middle of the top control frame, a linkage belt wheel is rotatably arranged on the driving support frame, and the central belt wheel is rotatably connected with the three linkage belt wheels through a primary transmission belt.

Preferably, the top control frame is fixedly connected with a control electric cylinder through a control electric cylinder support, a switching driving motor is fixedly connected to a telescopic rod of the control electric cylinder, an upper driving gear is fixedly connected to an output shaft of the switching driving motor, a lower driving gear is fixedly connected to the lower driving gear through a connecting shaft below the upper driving gear, a constant rotation gear is in spline fit with the connecting shaft, the constant rotation gear is in sliding connection with the connecting shaft, and the constant rotation gear is rotatably installed on the driving support frame through a switching gear support.

Preferably, the middle side rack is rotatably mounted on the driving support frame through a middle side rack support plate, middle side racks are rotatably connected with middle side racks, upper surface gears of the middle side racks are meshed with the middle side rack support plate, an inserting plectrum is fixedly mounted on the middle side rack support plate, the inserting plectrum is rotatably mounted on the middle side rack, an inserting electric cylinder is arranged on the side of the inserting plectrum, the inserting electric cylinder is fixedly mounted on the middle side rack, and an inserting block is fixedly connected to a telescopic rod of the inserting electric cylinder.

Preferably, three limiting plates are fixedly arranged on the top control frame, three control rods are rotatably arranged on the driving support frame, grooves matched with the inserted pulling plates are formed in one ends, close to the inserted pulling plates, of the control rods, control gears are fixedly connected with one ends, far away from the inserted pulling plates, of the control rods and are rotatably connected to the filling barrel, a liquid injection screw rod is slidably arranged in the liquid injection cavity, a liquid injection nut gear is arranged on the outer surface thread of the liquid injection screw rod, and the liquid injection nut gear is meshed with the control gears.

Preferably, the driving support frame is further fixedly provided with a bottom driving gear support, the bottom driving gear support is rotationally connected with a bottom driving gear, the middle part of the bottom driving gear is fixedly connected with a switching lower gear through a switching lower connecting rod, the top end of the switching lower connecting rod is rotationally connected with a switching upper connecting rod, the top end of the switching upper connecting rod is fixedly connected with a central belt wheel, and the switching upper gear is fixedly connected with the switching upper connecting rod.

Compared with the prior art, the invention has the following beneficial effects: (1) According to the invention, the weighing cavity is arranged to control the disposable filling quantity, so that the filling precision is improved; (2) The invention can set a plurality of groups of filling barrels for independent control; (3) The invention uses a mechanical structure to control, reduces the use of electromagnetic valves, and improves the stability of control.

Drawings

FIG. 1 is a schematic diagram I of the structure of the invention.

Fig. 2 is an enlarged view of the structure of fig. 1 a according to the present invention.

Fig. 3 is a schematic view of the centrifugal pulling sheet according to the present invention.

Fig. 4 is a schematic view of the structure of the centrifugal motor of the present invention.

FIG. 5 is a schematic diagram II of the structure of the present invention.

Fig. 6 is an enlarged view of the structure of fig. 5B in accordance with the present invention.

Fig. 7 is an enlarged view of the structure of fig. 5 at C in accordance with the present invention.

FIG. 8 is a schematic diagram III of the structure of the present invention.

Fig. 9 is an enlarged view of the structure of fig. 8D according to the present invention.

Fig. 10 is an enlarged view of the structure at E in fig. 8 according to the present invention.

Fig. 11 is an enlarged view of the structure of fig. 8 at F in accordance with the present invention.

FIG. 12 is a schematic diagram IV of the structure of the present invention.

Fig. 13 is an enlarged view of the structure of fig. 12 at G in accordance with the present invention.

Fig. 14 is a schematic view v of the structure of the present invention.

FIG. 15 is a schematic diagram I of the structure of the storage and release block according to the present invention.

FIG. 16 is a schematic diagram II of the structure of the storage and release block according to the present invention.

FIG. 17 shows a schematic view VI of the structure of the present invention.

Fig. 18 is a schematic view of the structure of the constant rotation gear of the present invention.

FIG. 19 is a schematic view VII of the structure of the present invention.

FIG. 20 is a schematic view VIII of the structure of the present invention.

Fig. 21 is a schematic view of the structure of the driving support frame of the present invention.

In the figure: 101-filling a barrel; 102-filling barrel supports; 103-a centrifuge wheel bracket; 104-a centrifugal wheel; 105-a centrifugal motor; 106, centrifuging the poking piece; 107-pressurizing a lead screw; 108-a nut poking piece; 109-a booster nut block; 110-a booster piston; 111-a pressurized check valve; 112-a liquid injection cavity; 113-a storage nut pulley bracket; 114-liquid injection screw rod; 115-a liquid injection nut gear; 116-control lever; 117-control gear; 118-a liquid injection one-way valve; 119-a weighing chamber; 120-liquid injection telescopic cylinder; 121-a balance telescopic cylinder; 122-a surplus recovery tube; 123-allowance piston; 124-a balance barrel; 125-allowance spring; 126-weighing the piston; 127-solenoid valve; 128-base; 129-pressure storage tank support; 130-a pressure storage barrel; 131-a pressure storage piston; 132-a pressure storage spring; 133-a filter; 134-drive support frame; 135-pressure storage tube; 136-top control rack; 137-control electric cylinder; 138-control cylinder support; 139-limiting sheets; 140-linkage belt wheels; 141-a primary drive belt; 142-a secondary drive belt; 143-a central pulley; 144-switching gear rack; 145-switching the driving motor; 146-switching the upper connecting rod; 147-switching the upper gear; 148-switching an upper drive gear; 149-allowance control screw rod; 150-constant rotation gear; 151-a switching lower drive gear; 152-switching the lower gear; 153-switching lower links; 154-bottom drive gear; 155-middle side rack; 156-middle side teeth; 157-middle side rack support plates; 1581-storage release panels; 1582-store release block; 1583-storing release anti-rotation bars; 1584-store release lead screw; 1585-store release nut gear; 159-insert block; 160-inserting an electric cylinder; 161-inserting a plectrum; 162-bottom drive gear rack; 163-a margin control block; 164-a margin control board; 165-storage nut pulleys; 166-controlling the anti-rotation rod; 167-four-way pipe.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1-4, the present invention provides a technical solution: the quantitative filling machine for filling liquid comprises a filling barrel 101, a liquid storage mechanism is fixedly arranged at the bottom of the filling barrel 101, the liquid storage mechanism comprises a weighing cavity 119, a weighing piston 126 is slidably arranged on the weighing cavity 119, a liquid injection telescopic cylinder 120 and a residual telescopic cylinder 121 are fixedly arranged on the weighing piston 126, a liquid injection cavity 112 and a residual recycling pipe 122 are fixedly connected to the top ends of the liquid injection telescopic cylinder 120 and the residual telescopic cylinder 121 respectively, the top ends of the liquid injection cavity 112 are communicated with the bottom end of the filling barrel 101, a liquid injection one-way valve 118 is fixedly arranged on the filling barrel 112, the filling barrel 101 and the weighing cavity 119 are fixedly arranged on a filling barrel bracket 102, a liquid injection port is formed in the top of the filling barrel 101, three groups of filling barrel 101 and the weighing cavity 119 are fixedly arranged on the base 128 through the filling barrel bracket 102, the inner walls of the filling barrel 101 are respectively and quantitatively connected with the pressurizing piston 110, a one-way valve 111 is fixedly arranged on the pressurizing piston 110, a motor 103 is arranged at the pressurizing piston 110, a position deviating from the pressurizing motor 103, a pressurizing motor 105 is also fixedly arranged on a pressurizing wheel 105, a rotating shaft 105 is fixedly connected with a pressurizing nut 105, a rotating shaft 105 is fixedly arranged on a rotating a centrifugal wheel 105, a rotating nut is fixedly arranged on the outer surface of the centrifugal wheel 105, and is fixedly connected with the centrifugal wheel 105, and a rotating nut is fixedly arranged on the outer surface of the centrifugal wheel 105, and is fixedly connected with the rotating nut is fixedly arranged on the rotating shaft 104, and is fixedly arranged on the rotating nut, and is fixedly connected with the pressurizing nut 105, and is fixedly arranged on the pressurizing nut, and the rotating nut is mounted on the pressurizing nut, and the pressurizing nut is mounted, and is a rotating nut and the pressurizing nut is a and the pressurizing nut. The centrifugal pulling piece 106 on the centrifugal wheel 104 can outwards move due to the effect of centrifugal force, when the centrifugal pulling piece 106 is in contact with the nut pulling piece 108, the rotating centrifugal pulling piece 106 can drive the nut pulling piece 108 to rotate, the nut pulling piece 108 can drive the pressurizing nut block 109 to rotate, the pressurizing nut block 109 can drive the pressurizing screw rod 107 to vertically move, at the moment, the pressurizing piston 110 can extrude the space inside the filling barrel 101 to enable liquid inside the filling barrel 101 to be outwards discharged, the description is needed, the position of the pressurizing piston 110 is located below a liquid injection port at the top of the filling barrel 101 during liquid discharge, then the centrifugal pulling piece 106 is reversed towards the opposite direction through the centrifugal motor 105, the nut pulling piece 108 is pulled upwards, at the moment, the pressurizing piston 110 is matched with the pressurizing one-way valve 111, air enters the filling barrel 101, then the steps are repeated again, the purpose of pressurizing liquid inside the filling barrel 101 can be achieved, the liquid inside the filling barrel 101 can be smoothly flowed, the distance of the centrifugal pulling piece 106 can be outwards also changed by controlling the rotating speed of the centrifugal motor 105, the diameter of the filling barrel 101 is different from the centrifugal pulling piece 108, and the diameter of the filling barrel 101 is different from the diameter of the centrifugal pulling piece 108, and the diameter of the filling barrel is different from that the centrifugal pulling piece 108 is required to be controlled, and the diameter of the nut is different from the diameter of the centrifugal pulling piece 101.

As shown in fig. 5 to 7 and 19, three balance barrels 124 are fixedly mounted on the base 128, balance pistons 123 are fixedly mounted on the inner walls of the three balance barrels 124, balance springs 125 are fixedly mounted between the balance pistons 123 and the bottom surfaces of the inner walls of the balance barrels 124, the interiors of the three balance barrels 124 are communicated with three groups of weighing cavities 119 through balance recovery pipes 122, the bottoms of the three groups of weighing cavities 119 are communicated with the interiors of the corresponding weighing cavities 119 through four-way pipes 167, electromagnetic valves 127 are fixedly connected to the joints of the four-way pipes 167 and the weighing cavities 119 and used for controlling liquid in the weighing cavities 119 to flow into the four-way pipes 167, a pressure storage barrel support 129 is fixedly mounted on the base 128, a pressure storage barrel 130 is fixedly mounted on the pressure storage barrel support 129, a pressure storage barrel 130 is fixedly mounted on the inner wall of the pressure storage barrel support 129, a pressure storage spring 132 is fixedly mounted between the pressure storage piston 131 and the ground of the inner walls of the pressure storage barrel 130, a filter tip 133 is fixedly mounted on the bottom end of the pressure storage barrel 130, the interiors of the three pressure storage barrels 130 are communicated with the interiors of the corresponding weighing cavities 119 through three pressure storage pipes 135, an upper part 134 of the pressure storage barrel 130 is fixedly connected with a driving support frame 134, a driving pulley 134 is fixedly connected with a driving pulley 136 and is fixedly connected with a driving pulley 143, and a driving pulley 143 is rotatably connected to the driving pulley 136 is rotatably and is rotatably mounted on the driving support frame 136, and is rotatably connected with a driving pulley 141.

As shown in fig. 8-21, the top control frame 136 is fixedly connected with a control electric cylinder 137 through a control electric cylinder bracket 138, a telescopic rod of the control electric cylinder 137 is fixedly connected with a switching driving motor 145, an output shaft of the switching driving motor 145 is fixedly connected with a switching upper driving gear 148, a lower driving gear 151 is fixedly connected below the switching upper driving gear 148 through a connecting shaft, a constant rotation gear 150 is in spline fit with the connecting shaft, the constant rotation gear 150 is in sliding connection with the connecting shaft, the constant rotation gear 150 is rotatably mounted on the driving support frame 134 through the switching gear bracket 144, that is, a user controls the control electric cylinder 137 to enable the telescopic rod to drive the switching driving motor 145 to move up and down, the switching driving motor 145 can drive the switching upper driving gear 148 and the switching lower driving gear 151 on an output shaft thereof to move up and down together, and it is required that the constant rotation gear 150 and the switching lower driving gear bracket 144 are only in a rotation connection relationship, that is not generated between the constant rotation gear 150 and the switching driving gear bracket 144, that is, when the switching driving motor 145 is started, the output shaft drives the switching upper driving gear 148, the constant rotation gear 150 and the switching driving gear 151 to rotate together.

The middle side rack 155 is rotatably mounted on the driving support frame 134 through the middle side rack support plate 157, the middle side rack 155 is rotatably connected with the middle side rack 156, the middle side rack 155 and the middle side rack 156 are in transition fit, the middle side rack support plate 157 is engaged with the upper surface gear of the middle side rack 156, the middle side rack support plate 157 is fixedly provided with the insert plectrum 161, the insert plectrum 161 is rotatably mounted on the middle side rack 155, the side of the insert plectrum 161 is provided with the insert electric cylinder 160, the insert electric cylinder 160 is fixedly mounted on the middle side rack 155, and the insert block 159 is fixedly connected with the telescopic rod of the insert electric cylinder 160.

The top control frame 136 is fixedly provided with three limiting plates 139, the driving support frame 134 is rotatably provided with three control rods 116, one end of each control rod 116, which is close to the insertion pulling plate 161, is provided with a groove matched with the insertion pulling plate 161, one end of each control rod 116, which is far away from the insertion pulling plate 161, is fixedly connected with a control gear 117, the control gear 117 is rotatably connected to the filling barrel 101, the filling screw 114 is slidably installed in the filling barrel 112, the outer surface of the filling screw 114 is provided with a filling nut gear 115 in a threaded manner, the filling nut gear 115 is meshed with the control gear 117, the filling nut gear 115 is rotatably connected with the filling barrel 112, when the control rod 116 rotates, the control gear 117 rotates together, the control gear 117 drives the filling nut gear 115 to rotate, the filling screw 114 to linearly move, and the filling screw 114 is in an eccentric state in the filling barrel 112, therefore, the filling screw 114 is not driven to rotate, the filling screw 114 is controlled to be on and off in the filling barrel 112, the end part of the filling screw head 114 is arranged to be blocked, and the axis of the filling screw head is not coincident with the filling barrel head 112 when the filling barrel is connected to the filling barrel, and the filling head is blocked up, and the filling head is prevented from flowing downwards, and the filling head is blocked up in the channel is blocked up by the filling head is prevented from moving vertically.

As shown in fig. 1-21, a bottom driving gear bracket 162 is fixedly installed on the driving support frame 134, a bottom driving gear 154 is rotatably connected on the bottom driving gear bracket 162, a switching lower gear 152 is fixedly connected to the middle part of the bottom driving gear 154 through a switching lower connecting rod 153, a switching upper connecting rod 146 is rotatably connected to the top end of the switching lower connecting rod 153, the top end of the switching upper connecting rod 146 is fixedly connected with a central belt wheel 143, a switching upper gear 147 is fixedly connected to the switching upper connecting rod 146, the top end of the switching upper connecting rod 146 is also rotatably connected with the top control frame 136, a constant rotation gear 150 is meshed with a middle side gear 156, when the switching upper driving gear 148 and the switching lower driving gear 151 move up and down, the switching upper driving gear 148 is selectively meshed with the switching upper gear 147 or the switching lower driving gear 151 is meshed with the switching lower gear 152 and is not meshed, that is, the output shaft of the switch driving motor 145 always drives the middle side teeth 156 to rotate through the constant rotation gear 150, the middle side teeth 156 rotate to drive the middle side racks 155 to rotate together due to the friction force, the middle side racks 155 rotate to drive the insert dials 161 rotatably mounted thereon to revolve, at this time, the middle side rack support plates 157 also revolve together and do not rotate, because the middle side racks 155 and the middle side teeth 156 are relatively stationary, when one of the injection chambers 112 needs to be in an open state, the insert dials 161 revolve to the corresponding control levers 116, the switch driving motor 145 is turned off, the insert cylinders 160 are started to insert the insert blocks 159 into the corresponding stoppers 139, the switch driving motor 145 is turned on again, because the middle side racks 155 are limited by the stoppers 139, the middle side teeth 156 cannot drive the middle side teeth 155 to rotate, and at this time, the middle side teeth 155 and the middle side teeth 156 rotate relatively, so that the middle side teeth support plate 157 and the insert dial 161 rotate, and at this time, because the insert dial 161 and the control lever 116 are engaged, the control lever 116 rotates, the corresponding liquid filling cavity 112 is opened or closed, when the switch upper driving gear 148 is engaged with the switch upper gear 147, the switch upper gear 147 drives the center pulley 143 to rotate through the switch upper connecting rod 146, the center pulley 143 rotates to drive the linkage pulley 140 to rotate through the primary driving belt 141, the linkage pulley 140 rotates to drive the storage nut pulley 165 to rotate through the secondary driving belt 142, it is noted that the storage nut pulley 165 is rotatably mounted on the recharging barrel 101 through the storage nut pulley bracket 113, the storage nut pulley 165 is connected with the allowance control screw 149 by screw, the bottom end of the allowance control screw 149 is fixedly connected with the allowance control plate 164, the allowance control plate 164 is also fixedly connected with the allowance control anti-rotation rod 166, the allowance control anti-rotation rod 166 is connected with the storage nut pulley bracket 113 in a sliding way, the middle part of the allowance recovery tube 122 is connected with the allowance control plate 163 in series, the allowance control plate 163 is inserted with the allowance control plate 164, the allowance control plate 164 is provided with a through hole, that is, when the through hole is aligned with the pipeline of the allowance recovery tube 122, the allowance control plate 163 is in an opened state, and the allowance control plate 164 is provided with three, and the positions of the three allowance control plates 164 with the through holes are all different, therefore, although the three allowance control plates 164 move up and down together, the opening of different allowance control plates 163 is not simultaneous, therefore, one of the margin control blocks 163 can be selectively opened in sequence, when the lower driving gear 151 is engaged with the lower switching gear 152, the lower switching gear 152 drives the bottom driving gear 154 to rotate through the lower switching connecting rod 153, the bottom driving gear 154 rotates to drive the storage release nut gear 1585 to rotate, the storage release nut gear 1585 rotates to drive the storage release screw 1584 in the middle to vertically move, the bottom end of the storage release screw 1584 is fixedly connected with the storage release plate 1581, the storage release plate 1581 is fixedly connected with the storage release anti-rotation rod 1583, the storage release anti-rotation rod 1583 and the storage release screw 1584 are both in sliding connection with the bottom driving gear bracket 162, the storage release plate 1581 is also provided with a through hole, the storage release block 1582 is connected in series in the storage pressure pipe 135, the storage release plate 1581 is inserted into the storage release block 1582, and the working principle and the realized function are the same as those of the margin control plate 164.

In use, liquid to be weighed is filled into the filling barrel 101, then the liquid filling cavity 112 is controlled to flow into the bottom of the weighing cavity 119 through the liquid filling telescopic barrel 120, meanwhile, the interior of the filling barrel 101 is pressurized through the repeated up-down movement of the pressurizing piston 110, so that the liquid can flow into the weighing cavity 119 more easily, as the liquid is more and more, the weighing piston 126 moves upwards, the liquid filling telescopic barrel 120 and the allowance telescopic barrel 121 shrink, the air on the upper part of the weighing piston 126 is extruded into the pressure storage barrel 130 through the pressure storage pipe 135, at the moment, the pressure storage piston 131 moves downwards, the storage release block 1582 is opened, the pressure storage spring 132 is closed after the liquid in the weighing cavity 119 is filled, if the excessive liquid exists, then the liquid flows into the residual quantity barrel 124 through the residual quantity telescopic tube 121 and the residual quantity recycling tube 122 for storage, when the liquid in the subsequent weighing cavity 119 is insufficient, the residual quantity control block 163 is in an open state, the residual quantity control block is closed after being used up, the liquid filling cavity 112 is closed, the filling of the weighing cavity 119 is stopped, the electromagnetic valve 127 and the storage release block 1582 are opened, the liquid flows into the four-way pipe 167, a user receives the liquid from the water outlet of the four-way pipe 167 through the container, the air in the pressure storage barrel 130 reversely flows into the weighing cavity 119 under the action of the pressure storage spring 132, the liquid in the weighing cavity 119 is extruded out, and then the filling and weighing processes of the other two liquids in the filling barrel 101 are the same as the above processes, and are not repeated here.

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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quantitative liquid filling machine for liquid filling, includes filling barrel (101), its characterized in that: the bottom of the filling barrel (101) is fixedly provided with a liquid storage mechanism, the liquid storage mechanism comprises a weighing cavity (119), the weighing cavity (119) is provided with a weighing piston (126) in a sliding manner, the weighing piston (126) is provided with a liquid injection telescopic cylinder (120) and a residual telescopic cylinder (121) in a fixed manner, the top ends of the liquid injection telescopic cylinder (120) and the residual telescopic cylinder (121) are respectively fixedly connected with a liquid injection cavity (112) and a residual recovery pipe (122), the top end of the liquid injection cavity (112) is communicated with the bottom end of the filling barrel (101), the liquid injection cavity (112) is fixedly provided with a liquid injection check valve (118), the filling barrel (101) and the weighing cavity (119) are fixedly provided with a filling barrel support (102), the filling barrel support (102) is fixedly provided with a base (128), the top of the filling barrel (101) is provided with a liquid injection port, the inner wall of the filling barrel (101) is provided with a pressurizing piston (110) in a sliding manner, the pressurizing piston (110) is fixedly provided with a pressurizing check valve (111), the position of the pressurizing piston (110) deviating from the circle center is fixedly provided with a pressurizing nut (109) and the pressurizing nut (109) is fixedly provided with a pressurizing nut (109) and the outer surface of the pressurizing nut (109) is fixedly provided with a pressurizing nut (109), three allowance barrels (124) are fixedly installed on the base (128), the inner walls of the three allowance barrels (124) are all connected with an allowance piston (123) in a sliding mode, an allowance spring (125) is fixedly installed between the bottom surfaces of the inner walls of the allowance barrels (123) and the allowance barrels (124), the interiors of the three allowance barrels (124) are communicated with three groups of weighing cavities (119) through an equal allowance recycling pipe (122), the bottom ends of the three groups of weighing cavities (119) are communicated through a four-way pipe (167), an electromagnetic valve (127) is fixedly connected to the joint of the four-way pipe (167) and the weighing cavities (119) and used for controlling liquid in the weighing cavities (119) to flow into the four-way pipe (167), an accumulator barrel support (129) is fixedly installed on the base (128), an accumulator barrel (130) is fixedly installed on the accumulator barrel support (129), an accumulator piston (131) is fixedly installed on the inner wall of the accumulator barrel (130), an accumulator spring (132) is fixedly installed between the accumulator piston (131) and the ground of the inner wall of the accumulator barrel (130), the bottom ends of the accumulator barrel (130) are communicated with the filter tip (135), drive support frame (134) and pressure storage barrel support (129) fixed connection, fixedly connected with top control frame (136) on drive support frame (134), center pulley (143) are installed in the middle part rotation of top control frame (136) to still rotate on drive support frame (134) and install linkage band pulley (140), rotate through one-level drive belt (141) between center pulley (143) and three linkage band pulley (140) and be connected, control jar (137) through control jar support (138) fixedly connected with on top control frame (136), control jar (137) telescopic link is last fixedly connected with switch driving motor (145), switch driving gear (148) on the output shaft of driving motor (145) is last fixedly connected with switch driving gear (151) through connecting axle fixedly connected with down in the below of switch driving gear (148), and should connect epaxial spline fit has constant change gear (150), constant change gear (150) through switch gear support (144) rotation and install on drive support frame (134).

2. A liquid filling machine according to claim 1, characterized in that: still install middle part side rack (155) through middle part side rack backup pad (157) rotation on driving support frame (134), rotate on middle part side rack (155) and be connected with middle part side tooth (156), the upper surface gear engagement of middle part side tooth (156) has middle part side rack backup pad (157), fixed mounting has on middle part side rack backup pad (157) to insert plectrum (161), insert plectrum (161) rotation and install on middle part side rack (155) to the side of inserting plectrum (161) is provided with inserts electric jar (160), inserts electric jar (160) fixed mounting on middle part side rack (155), and fixedly connected with inserts piece (159) on the telescopic link of inserting electric jar (160).

3. A liquid filling machine according to claim 2, characterized in that: the top control frame (136) fixed mounting has three spacing piece (139), rotate on the drive support frame (134) and install three control lever (116), control lever (116) are close to the one end of inserting plectrum (161) and have seted up with insert plectrum (161) complex recess, one end fixedly connected with control gear (117) of inserting plectrum (161) are kept away from to control lever (116), and control gear (117) rotate to be connected on filling barrel (101), annotate liquid intracavity (112) slidable mounting has annotate liquid lead screw (114), annotate liquid lead screw (114) surface screw thread and install annotate liquid nut gear (115), annotate liquid nut gear (115) and control gear (117) gear engagement.

4. A liquid filling machine according to claim 3, characterized in that: still fixed mounting has bottom drive gear support (162) on drive support frame (134), rotates on bottom drive gear support (162) and is connected with bottom drive gear (154), and the middle part of bottom drive gear (154) is through switching connecting rod (153) fixed allies oneself with and is had switching lower gear (152), the top rotation of switching connecting rod (153) is connected with switching connecting rod (146), and the top and the central band pulley (143) fixed connection of switching connecting rod (146) are gone up to still fixedly connected with on switching connecting rod (146) switches gear (147).