CN202402237U - Double-cylinder metering plunger pump - Google Patents

Double-cylinder metering plunger pump Download PDF

Info

Publication number
CN202402237U
CN202402237U CN2011205277489U CN201120527748U CN202402237U CN 202402237 U CN202402237 U CN 202402237U CN 2011205277489 U CN2011205277489 U CN 2011205277489U CN 201120527748 U CN201120527748 U CN 201120527748U CN 202402237 U CN202402237 U CN 202402237U
Authority
CN
China
Prior art keywords
ball screw
motor
pump head
glue
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN2011205277489U
Other languages
Chinese (zh)
Inventor
张具武
廖建中
康争飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGZHOU ZHENGQI TECHNOLOGY Co Ltd
Original Assignee
GUANGZHOU ZHENGQI TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUANGZHOU ZHENGQI TECHNOLOGY Co Ltd filed Critical GUANGZHOU ZHENGQI TECHNOLOGY Co Ltd
Priority to CN2011205277489U priority Critical patent/CN202402237U/en
Application granted granted Critical
Publication of CN202402237U publication Critical patent/CN202402237U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a double-cylinder metering plunger pump, which comprises a motor, a pump head, two ball screws, a transmission gear, induction switches and a base plate, wherein the motor is connected with the transmission gear; one side of each of the two ball screws is fixed on a pump head fixing plate on the base plate, and the other side of each of the two ball screws is connected with the transmission gear; a plunger rod is arranged on each ball screw; a supporting rod is arranged between a ball screw front fixing plate and the pump head fixing plate; each induction switch is arranged at each of two ends of each supporting rod; four glue inlet and outlet through holes are formed in the pump head; one end of each through hole is connected with the outside; and the other end of each through hole is connected with each plunger rod in a sealed manner. The double-cylinder metering plunger pump is high in control precision and can feed and discharge glue stably and continuously discharge the glue.

Description

A kind of twin-tub metering piston pump
Technical field
The utility model relates to point, encapsulating equipment design field, particularly a kind of twin-tub metering piston pump.
Background technique
Point, encapsulating have following several kinds to supply the glue mode in the prior art: (1) small quantity plastic emitting, and through air pressure glue is directly exerted pressure, thereby control the amount and the pressure of glue through the break-make of air pressure; (2) gear pump control plastic emitting; Dependence is sealed in two or more gears in the housing; The working space volume-variation that in the process of being meshing with each other, is produced is carried the pump of liquid, through rotating speed and the number of turns control plastic emitting glue amount and the pressure of control gear pump internal gear; (3) screw pump control plastic emitting realizes the control to glue through pump housing internal rotor pitch, rotating speed.More than several kinds of technology have several kinds of defectives: (1) air pressure supplies glue, receives the influence of air pressure stability bigger, and very easily the variation because of air pressure impacts gel quantity, and accuracy, the conformity of plastic emitting is difficult to control; (2) pressure of the exhaust port of gear pump depends on the outside size that connects the sealant yielding system resistance fully; The size and the gel quantity of resistance are inversely proportional to, and the big gel quantity of resistance is little, and the little gel quantity of resistance is big; Pump can different capacities of reflux occur because of the size of resistance; And have at liquid under the situation of particle and very easily gear is caused wearing and tearing, can't use under the situation arbitrarily, accuracy, the conformity of plastic emitting is difficult to accurate control; (3) screw pump is a rubber product because of stator, not wear-resistantly needs periodic replacement, and the follow-up service cost improves, and screw pump can produce different capacities of reflux because of the variation of outlet pressure, and accuracy, the conformity of plastic emitting is difficult to accurate control.(4) present plastic emitting mode is and is interrupted plastic emitting, promptly advances outside plastic emitting under the effect of pressure again behind the glue, externally plastic emitting continuously from one or a glue-feeder.
Therefore, need provide that a kind of control accuracy is high, turnover glue is stable and the metering piston pump of plastic emitting continuously.
The model utility content
The shortcoming that the main purpose of the utility model is to overcome existing technology provides a kind of twin-tub metering piston pump with not enough, and this device can realize continuous plastic emitting and turnover glue is stable, precision is high.
The purpose of the utility model realizes through following technological scheme: a kind of twin-tub metering piston pump; Comprise motor, pump head, ball screw, driving gear, induction switch, base plate; Motor is fixed on the motor fixing plate that is arranged at base plate one side, and pump head is fixed on the pump head fixed plate that is arranged at the base plate opposite side; Motor is connected with driving gear through coupling; Base plate near an end of motor is provided with a ball screw front shoe, and two ball screw one sides are separately fixed on the ball screw front shoe, and two ball screw front portions also are connected with driving gear respectively; On each ball screw, be equipped with a plunger rod that can slide above that; During work, motor drives ball screw through driving gear, makes plunger rod on ball screw, carry out straight line motion; Between ball screw front shoe and pump head fixed plate, be provided with strut, the two ends of a strut are provided with an induction switch respectively therein, and two induction switches all link to each other with controller outside; Said pump head is provided with selector valve; The pump head upper end is provided with the gum exudation mouth that links to each other with outside plastic emitting control apparatus; The pump head side is provided with and advances the glue-feeder that gluing equipment links to each other; The respectively corresponding glue-feeder of each plunger rod and a gum exudation mouth, and this glue-feeder all is connected selector valve with gum exudation mouth.
Another plunger rod is retreated when a plunger rod advances; That is to say a cylinder when plastic emitting, another cylinder can advance glue simultaneously, adopts selector valve control twin-tub to advance gum exudation mouth; Can realize the moment exchange of twin-tub turnover glue; Thereby realize the uninterrupted glue that supplies, plunger rod produces vacuum when moving backward, thereby makes glue fill up cavity.
As preferred version, said motor is a stepper motor.Stepper motor can be controlled by controllor for step-by-step motor, can make device have higher transmission accuracy, and adopts gear matched simultaneously, and turnover glue that can assurance device is accurate.
Preferably; Saidly between ball screw front shoe and pump head fixed plate, be provided with strut; The two ends of a strut are provided with an induction switch respectively therein; Two induction switches all link to each other with controller outside and are used for after induction switch receives signal, changing the direction of advancing glue and plastic emitting, and selector valve is by electromagnetic valve, and solenoid valve, induction switch all are connected with peripheral control unit.Here controller generally adopts the PLC controller.
More specifically, said selector valve is an air operated reversing valve, and air operated reversing valve speed is very fast relatively; The fastest switching speed 0.05 second/inferior, fluid resistance is little, and its resistance coefficient equates with pipeline section with length; Closely reliable, be widely used plastics king, sealing of seal face materials is reliable, easy to operate; Open and close rapidly, be convenient to remote control.Easy to maintenance, seal ring generally all is movable, and dismounting and change is all more convenient.
Preferably, said device also comprises safety cover, and safety cover and base plate form a confined space, and ball screw, driving gear, induction switch all are arranged in the safety cover.Adopt this mode can prevent danger, reduce dust, the physical life of extension fixture.
Method of measurement based on above-mentioned twin-tub metering piston pump is: after the induction switch at the two ends that are arranged at the plunger rod direct of travel is sensed signal; Realize passing in and out the change of glue direction through the break-make that changes selector valve on motor sense of rotation and the pump head, keep two plunger rods to be in a state that advances a plastic emitting of glue all the time.
Specifically may further comprise the steps:
(1) controller is after the instruction of sending turnover glue; Motor drives driving gear through motor shaft and rotates; Driving gear drives connected ball screw and rotates and then make plunger rod on ball screw, to carry out straight line motion, and the direct of travel of two plunger rods on ball screw is opposite;
(2) judged whether that induction switch senses plunger rod, if then get into step (3); Otherwise continuing the current line precession does;
(3) induction switch sends to controller with induced signal; Controller sends to selector valve and motor on the pump head with commutation signal; Thereby the pairing selector valve of the plunger rod that induction switch is sensed switches the break-make mode and changes turnover glue direction; Motor changes its sense of rotation, and the moving direction of this plunger rod on ball screw is changed, and gets into step (1) then;
(4) accomplishing turnover glue, when controller sends halt instruction, stop aforesaid operations.
The utility model compared with prior art has following advantage and beneficial effect:
1, the utility model adopts two plunger pumps to accomplish the work of turnover glue; The direct of travel of two plunger pumps is opposite; One is advanced plastic emitting of glue at one time, adopts this mode can guarantee that plunger metering pump can be in the state of plastic emitting all the time, realizes continuous plastic emitting.
2, the motor in the utility model adopts stepper motor to control, and adopts high-precision gear matched simultaneously, realized that not only parallel bars do not have the gap switching-over, and the transmission accuracy of mechanism is also higher.
3, adopt ball screw to realize the straight line motion of plunger rod in the utility model device, because ball screw has the characteristics of highi degree of accuracy, reversibility and high efficiency, high capacity, realized low friction, low noise, thereby can guarantee the working life of mechanical structure.
4, the utility model device control is simple, and manual work only needs operation start, stop and the plastic emitting parameter is set and get final product, and the device internal structure is simple, and the accessory of use is accessory commonly used, and not only long service life and follow-up service maintenance is also more convenient.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model device;
Fig. 2 is the surface structure schematic representation of the utility model device.
Among Fig. 1-2: 1-base plate, 2-motor, 3-coupling, 4-motor fixing plate, 5-driving gear, 6-ball screw front shoe, 7-induction switch, 8-ball screw, 9-plunger rod, 10-strut, 11-pump head fixed plate, 12-pump head, 13-gum exudation mouth, 14-glue-feeder, 15-safety cover.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the mode of execution of the utility model is not limited thereto.
Embodiment 1
As illustrated in fig. 1 and 2; A kind of twin-tub metering piston pump; Comprise motor 2, pump head 12, safety cover 15 and be arranged on ball screw 8, driving gear 5, induction switch 7, the base plate 1 in the safety cover 15 that be provided with motor fixing plate 4 in base plate 1 one sides, motor 2 is fixed on the motor fixing plate 4; Be provided with pump head fixed plate 11 at base plate 1 opposite side, pump head 12 is fixed on the pump head fixed plate 11; Motor 2 is connected with driving gear 5 through coupling 3; Base plate near an end of motor is provided with a ball screw front shoe 6; Two ball screw one sides are separately fixed on the ball screw front shoe 6, and two ball screw 8 front portions also are connected with driving gear 5 respectively, on each ball screw, are equipped with a plunger rod that can slide 9 above that; Each plunger rod 9 all joins with the strut 10 that is fixedly installed on the base plate; During work, motor 2 drives ball screw 8 through driving gear 5, makes plunger rod 9 on ball screw 8, carry out straight line motion; Between ball screw front shoe 6 and pump head fixed plate 11, be provided with strut 10, the two ends of a strut 10 are provided with 7, two induction switches of an induction switch respectively and all link to each other with controller outside therein; Be provided with four turnover glue through holes in the said pump head 12, through hole one end links to each other with outside turnover gluing equipment through advancing gum exudation mouth 13,14, and the other end and plunger rod 9 are tightly connected.And as shown in Figure 2, the respectively corresponding glue-feeder 14 of each plunger rod and a gum exudation mouth 13, and glue-feeder all is connected selector valve with gum exudation mouth.Advance gum exudation mouth thereby can control twin-tub, can realize the moment exchange of twin-tub turnover glue, thereby realize the uninterrupted glue that supplies through selector valve.
The motor 2 that adopts in the present embodiment is stepper motor.Stepper motor can be controlled by controllor for step-by-step motor, can make device have higher transmission accuracy, and adopts gear matched simultaneously, and turnover glue that can assurance device is accurate.
In addition, selector valve is by electromagnetic valve, and solenoid valve, induction switch all are connected with peripheral control unit.Adopt the PLC controller to come selector valve and induction switch are controlled in this instance.
A kind of method of measurement based on above-mentioned twin-tub metering piston pump; After the induction switch at the two ends that are arranged at the plunger rod direct of travel is sensed signal; Realize passing in and out the change of glue direction through the break-make that changes selector valve on motor sense of rotation and the pump head, keep two plunger rods to be in a state that advances a plastic emitting of glue all the time.
Specifically may further comprise the steps:
(1) controller is after the instruction of sending turnover glue; Motor drives driving gear through motor shaft and rotates; Driving gear drives connected ball screw and rotates and then make plunger rod on ball screw, to carry out straight line motion, and the direct of travel of two plunger rods on ball screw is opposite;
(2) judged whether that induction switch senses plunger rod, if then get into step (3); Otherwise continuing the current line precession does;
(3) induction switch sends to controller with induced signal; Controller sends to selector valve and motor on the pump head with commutation signal; Thereby the pairing selector valve of the plunger rod that induction switch is sensed switches the break-make mode and changes turnover glue direction; Motor changes its sense of rotation, and the moving direction of this plunger rod on ball screw is changed, and gets into step (1) then;
(4) accomplishing turnover glue, when controller sends halt instruction, stop aforesaid operations.
The foregoing description is the utility model preferred implementation; But the mode of execution of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.

Claims (4)

1. twin-tub metering piston pump; It is characterized in that; Comprise motor, pump head, ball screw, driving gear, induction switch, base plate, motor is fixed on the motor fixing plate that is arranged at base plate one side, and pump head is fixed on the pump head fixed plate that is arranged at the base plate opposite side; Motor is connected with driving gear through coupling; Base plate near an end of motor is provided with a ball screw front shoe, and two ball screw one sides are separately fixed on the ball screw front shoe, and two ball screw front portions also are connected with driving gear respectively; On each ball screw, be equipped with a plunger rod that can slide above that; During work, motor drives ball screw through driving gear, makes plunger rod on ball screw, carry out straight line motion; Between ball screw front shoe and pump head fixed plate, be provided with strut, the two ends of a strut are provided with an induction switch respectively therein, and two induction switches all link to each other with controller outside; Said pump head is provided with selector valve; The pump head upper end is provided with the gum exudation mouth that links to each other with outside plastic emitting control apparatus; The pump head side is provided with and advances the glue-feeder that gluing equipment links to each other; The respectively corresponding glue-feeder of each plunger rod and a gum exudation mouth, and this glue-feeder all is connected selector valve with gum exudation mouth.
2. twin-tub metering piston pump according to claim 1 is characterized in that, said motor is a stepper motor.
3. twin-tub metering piston pump according to claim 1 is characterized in that, selector valve is by electromagnetic valve, and solenoid valve is connected with peripheral control unit.
4. twin-tub metering piston pump according to claim 3 is characterized in that, also comprises safety cover, and safety cover and base plate form a confined space, and ball screw, driving gear, induction switch all are arranged in the safety cover.
CN2011205277489U 2011-12-15 2011-12-15 Double-cylinder metering plunger pump Withdrawn - After Issue CN202402237U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205277489U CN202402237U (en) 2011-12-15 2011-12-15 Double-cylinder metering plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205277489U CN202402237U (en) 2011-12-15 2011-12-15 Double-cylinder metering plunger pump

Publications (1)

Publication Number Publication Date
CN202402237U true CN202402237U (en) 2012-08-29

Family

ID=46699888

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205277489U Withdrawn - After Issue CN202402237U (en) 2011-12-15 2011-12-15 Double-cylinder metering plunger pump

Country Status (1)

Country Link
CN (1) CN202402237U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418682A (en) * 2011-12-15 2012-04-18 广州正奇科技有限公司 Double-cylinder metering plunger pump and metering method thereof
CN103321870A (en) * 2013-07-06 2013-09-25 路遥 Screw plunger impurity-removing pump and sewage disposal method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418682A (en) * 2011-12-15 2012-04-18 广州正奇科技有限公司 Double-cylinder metering plunger pump and metering method thereof
CN102418682B (en) * 2011-12-15 2014-03-12 广州正奇科技有限公司 Double-cylinder metering plunger pump and metering method thereof
CN103321870A (en) * 2013-07-06 2013-09-25 路遥 Screw plunger impurity-removing pump and sewage disposal method

Similar Documents

Publication Publication Date Title
CN102418682B (en) Double-cylinder metering plunger pump and metering method thereof
CN106391399B (en) A kind of New LED dispenser
CN202057491U (en) Energy saving hydraulic motor performance testboard apparatus
CN205117648U (en) Plunger pump
CN103894315B (en) A kind of fluid quantitative injection device
CN204299837U (en) A kind of metering pump being applied to production teflon
CN201158582Y (en) Pneumatic constant-volume liquid backfilling apparatus
CN202402237U (en) Double-cylinder metering plunger pump
CN203061374U (en) Quantitative fluid injection equipment
CN203946879U (en) The accurate quantity filling apparatus of horizontal liquid material
CN203791135U (en) Independent adjustable multi-head microscale adhesive dispensing device
CN202402238U (en) Single-cylinder metering plunger pump
CN202597053U (en) Delivery performance and life test device system for gear oil pump
CN204817066U (en) Automatic intelligent encapsulating machine of two ingredient glue
CN103639099B (en) A kind of biliquid automatic sizing machine send colloid system
CN203488461U (en) Continuous feeding device for hydraulic system
CN204694705U (en) A kind of portable hydraulic system air air content proving installation
CN202088419U (en) Servo control system of injection molding machine
CN203610282U (en) Novel bi-liquid automatic glue applicator glue-delivery system
CN201679981U (en) Stepping automatic control valve
CN208437147U (en) Inner supply type is centrifuged glue spreading system
CN203678634U (en) Continuous glue delivery system of automatic double-liquid glue applicator
CN207470412U (en) Intelligent water pump pressure controller
CN201158583Y (en) Pneumatic constant-volume swinging liquid filling machine
CN202606357U (en) Injection glue spitting type glue dispensing valve

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20120829

Effective date of abandoning: 20140312

AV01 Patent right actively abandoned

Granted publication date: 20120829

Effective date of abandoning: 20140312

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned