CN102357437A

CN102357437A - Portable two-component high-pressure injector

Info

Publication number: CN102357437A
Application number: CN2011102982129A
Authority: CN
Inventors: 吴祎
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-28
Filing date: 2011-09-28
Publication date: 2012-02-22
Anticipated expiration: 2031-09-28
Also published as: CN102357437B

Abstract

The invention provides a portable two-component high-pressure injector. The injector comprises a speed reduction motor, an eccentric wheel, an eccentric shaft, a connecting rod, a push rod, a shaft sleeve, a linkage plate, two micro plunger pumps, two raw material bottles and a rack, wherein the speed reduction motor is installed at the rear of the rack; the eccentric wheel is fixedly installed on the output shaft of the speed reduction motor; the two micro plunger pumps are installed in front of the rack in parallel; the rear ends of steel plunger rods of the two micro plunger pumps are fixedly connected with the front end of the push rod installed in the shaft sleeve by the linkage plate; the rear end of the push rod is connected with the eccentric shaft on the eccentric wheel by a rotating shaft and the connecting rod; and the two raw material bottles are inversely arranged above the micro plunger pumps and are respectively communicated with feed inlets of the two micro plunger pumps. The injector has the advantages of simple and reasonable structure, small volume, light weight, good precision stability, convenience in carrying and using, maintenance-free property and the like, is most suitable to transport two-component raw materials to be prepared into such raw materials with self-crystallization tendency as elastomeric coatings, foams, adhesives and the like on the spot and is suitable for maintenance and use in such aspects as waterproofing, heat insulation, protection, filling, floors and the like in smaller area.

Description

Portable bi-component high pressure spray machine

Technical field

The present invention relates to a kind of insufflation apparatus; Particularly a kind of high pressure painting and perfusion that can be used for the two ingredient liquids chemical raw material; Can obtain high-quality finished-product material such as polyurethane foam, elastomer coatings etc., be used for volume two component high pressure spray machines little, in light weight, easy to carry of aspects such as waterproof, insulation, protection, filling, terrace.Belong to the injection apparatus field.

Background technology

In the application of prior art, be example with the two component polyurethane foam, adopt bi-component high pressure painting machine to construct usually.The urethane raw of bi-component need keep A, the accurate mixed proportion of B raw material, and the temperature and pressure in when reaction should control within the specific limits, could the good foam of obtained performance.Traditional high pressure painting equipment adopts compressed air or high-pressure and hydraulic oil as power source usually; Promotion A, two plunger type proportioning pumps of B are compressed to 70-100bar to raw material; Through two high-power heaters A, B raw material are heated respectively then and temperature control, finally be transported to the rifle head to raw material and carry out mixed foaming.The advantage of high pressure painting machine is to obtain colory insulating foam and output quantity is big, efficient is high; But its shortcoming is also fairly obvious simultaneously: because raw material A (isocyanates) is met water (comprising airborne moisture) or long-term storage all can be solidified in crystallization; Flush coater need be by the professional's operation and maintenance through training, otherwise daily deposits the damage that just possibly cause equipment; Need plurality of devices such as supporting air compressor when equipment uses, weight and volume is all bigger, and need from the main frame to the working site, connect the long pressure hose of tens of rice, uses inconvenience.Therefore, the use of conventional high-tension flush coater is subject to many limitations.

Summary of the invention

The objective of the invention is needs equipment such as supporting air compressor in order to overcome above-mentioned existing high pressure painting equipment; Obviously exist Heavy Weight, volume big and use weak point such as inconvenience, design a kind of simple and reasonable, volume is little, in light weight and portably use portable easily pair of component high pressure spray machine.

Portable bi-component high pressure spray machine of the present invention; Its structure mainly comprises reducing motor, eccentric wheel, eccentric shaft, connecting rod, push rod, axle sleeve, interlock plate, 2 Small Plunger Pump, 2 stock bottles and frame; Said reducing motor is installed in the frame rear portion, and eccentric wheel is packed on the output shaft of reducing motor, and 2 Small Plunger Pump are installed in frame front side by side; The steel plunger rod rear end of 2 Small Plunger Pump is fixedly connected with the push rod front end through the interlock plate; The push rod warp beam sleeve is installed in central rack, and putting back-end is connected with connecting rod one end through turning cylinder, and the connecting rod other end is contained on the eccentric eccentric shaft; 2 stock bottles are inverted on the frame of Small Plunger Pump top, and 2 raw material bottlenecks are communicated with 2 charging apertures of 2 Small Plunger Pump respectively.

But 2 high pressure self-cleaning plunger displacement pumps arranged side by side of the preferred accurate measurement of said 2 Small Plunger Pump; The output check valve that its structure comprises the pump housing, steel plunger rod, sealing ring, copper wiper ring, become with compression spring set by unidirectional valve ball; Said pump housing front portion is provided with valve pocket and the discharging opening that the output check valve is installed; Pump housing rear portion is provided with the copper pump chamber and communicates with valve pocket, and the steel plunger rod is installed in the copper pump chamber, and steel plunger rod rear end is stretched out the copper pump chamber and is used for being connected with driving mechanism with the copper wiper ring; The pump housing at copper pump chamber middle part is provided with charging aperture; Be provided with internal thread in the rear port of copper pump chamber, copper wiper ring front portion is provided with external screw thread and is provided with than the imperial palace accent, and the copper wiper ring is installed on the rear port of copper pump chamber through internal and external screw thread; Ring set is on the steel plunger rod and be embedded on the anterior interior accent of copper wiper ring; Copper wiper ring rear sleeve is contained on the steel plunger rod, and the anterior interior accent of said copper wiper ring is toroidal, sealing ring be with the copper wiper ring in the corresponding conical seal ring of toroidal of accent.

In order to guarantee the normal operation of flush coater; In time understand the output pressure of plunger displacement pump and protect it when any lateral pressure is excessive, to stop the machine operation; Can have additional 2 Pressure gauges and 2 overvoltage protection switches, the input of said 2 Pressure gauges and 2 overvoltage protection switches is communicated with the valve pocket of the output check valve of 2 Small Plunger Pump respectively.

During work; Reducing motor drives eccentric wheel and rotates; Eccentric shaft drivening rod one end on the eccentric wheel is that radius rotates around the eccentric wheel central shaft with the eccentric throw; The connecting rod other end makes push rod make linear reciprocal movement along the axle sleeve direction because of push rod can not rotate through turning cylinder, again through connecting plate synchronously to the steel plunger rod of 2 Small Plunger Pump push away, roping is moving, thereby make plunger displacement pump realize the circulation of compression and expansion.When the steel plunger rod is pulled rearward when moving; Because of the shutoff of check valve steel ball makes the increasing negative pressure of generation in the pump chamber; After steel plunger rod front end is pulled to charging aperture, under the acting in conjunction of the raw material pull of vacuum in gravity and pump chamber in 2 stock bottles, respectively rapidly in 2 pump chambers of entering; After the steel plunger rod is pulled to behind the stop; Connecting rod just becomes pulling force into thrust automatically; Two steel plunger rods are pressurizeed to 2 kinds of raw materials that get into pump chamber respectively, and pressurized high pressure feedstock is exported with accurate ratio from discharging opening after pushing the check valve steel ball rapidly open.

Portable bi-component high pressure spray machine of the present invention; Owing to use reducing motor to replace compressed air or high-pressure and hydraulic oil as power source; Select the plunger type proportioning pump of one-way only operation for use, greatly reduced the cost of equipment and reduced volume and reduction weight, can make complete machine weight be not more than 10 kilograms; Be present product weight about 1/10th, make the spray machine realize portable target.Again because of adopting bottled raw material, can effectively avoiding waste with using with dress.Have simple and reasonable, volume is little, in light weight and portably use advantages such as convenient; Can realize from big flow to low discharge, from spraying to the various middle-size and small-size application of perfusion; Thereby make materials such as high performance polyurethane foam be able to be applied to the various aspects of daily life, effectively expanded the range of application of bi-component raw material system (like polyurethane foam insulation).Simultaneously; Also, can remove the material crystal on the steel plunger rod automatically, prevent to be prone to the crystallization raw material and damage plunger displacement pump owing to designed the hermetically-sealed construction of copper wiper ring to the steel plunger rod; Also cancel conventional plastic seal, thereby guaranteed precision stability in long-term use and non-maintaining.The formulated at the scene elastomer coatings of the most suitable conveying bi-component raw material, foam, adhesive etc. have from crystallization tendency raw material carry out the maintenance use of aspects such as waterproof, insulation, protection, filling, terrace than small size.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is the structural representation of 2 Small Plunger Pump arranged side by side among Fig. 1.

The specific embodiment

The non-limiting concrete structure sketch map that provides a kind of embodiment among some embodiment of the present invention of accompanying drawing.Among the figure 1 is reducing motor, the 2nd, and eccentric wheel, the 3rd, eccentric shaft, the 4th, connecting rod, the 5th, frame; The 6th, push rod, the 7th, axle sleeve, the 8th, interlock plate, the 9th, steel plunger rod, the 10th, copper wiper ring; The 11st, sealing ring, the 12nd, charging aperture, the 13rd, the pump housing, the 14th, unidirectional valve ball, the 15th, compression spring; The 16th, discharging opening, the 17th, stock bottle, the 18th, overvoltage protection switch, the 19th, Pressure gauge.

Referring to accompanying drawing 1; Portable bi-component high pressure spray machine of the present invention, its structure mainly are made up of reducing motor 1, eccentric wheel 2, eccentric shaft 3, connecting rod 4, push rod 6,

axle sleeve

7,8,2 Small Plunger Pump of interlock plate, 2 stock bottles 17 and frame 5, and said reducing motor 1 is installed in frame 5 rear portions; Eccentric wheel 2 is packed on the output shaft of reducing motor 1; 2 Small Plunger Pump are installed in frame 5 front portions side by side, and steel plunger rod 9 rear ends of 2 Small Plunger Pump are fixedly connected with push rod 6 front ends through interlock plate 8, and push rod 6 warp beam sleeves 7 are installed in frame 5 middle parts; Push rod 6 rear ends are connected with connecting rod 4 one ends through turning cylinder; Connecting rod 4 other ends are contained on the eccentric shaft 3 of

eccentric wheel

2, and 2 stock bottles 17 are inverted on the frame of Small Plunger Pump top, and the bottleneck of 2 stock bottles 17 is communicated with 2 charging apertures 12 of 2 Small Plunger Pump respectively.

But 2 high pressure self-cleaning plunger displacement pumps arranged side by side of the preferred accurate measurement of said 2 Small Plunger Pump, its structure is as shown in Figure 2, mainly comprises the pump housing 13; Steel plunger rod 9, sealing ring 11, copper wiper ring 10; By the output check valve that unidirectional valve ball 14 and compression spring 15 are formed, the said pump housing 13 front portions are provided with valve pocket and the discharging opening 16 that the output check valve is installed, and the pump housing 13 rear portions are provided with the copper pump chamber and communicate with valve pocket; Steel plunger rod 9 is installed in the copper pump chamber; Steel plunger rod 9 rear ends are stretched out the copper pump chamber and are used for being connected with driving mechanism with copper wiper ring 10, and the pump housing at copper pump chamber middle part is provided with charging aperture 12, is provided with internal thread in the rear port of copper pump chamber; Copper wiper ring 10 front portions are provided with external screw thread and are provided with than the imperial palace accent; Copper wiper ring 10 is installed in through internal and external screw thread on the rear port of copper pump chamber, and sealing ring 10 is sleeved on the steel plunger rod 9 and is embedded on the interior accent of copper wiper ring 10 front portions, and copper wiper ring 10 rear sleeve are contained on the steel plunger rod 9; Said copper wiper ring 10 anterior interior accents are toroidal, and sealing ring 11 be the corresponding taper teflin ring of toroidal with copper wiper ring 10 interior accents.

In order to guarantee the normal operation of flush coater; In time understand the output pressure of plunger displacement pump and protect it when pressure is excessive, to stop the machine operation; Can have additional 2

Pressure gauges

19 and 2 overvoltage protection switches 18, the input of said 2

Pressure gauges

19 and 2 overvoltage protection switches 18 is communicated with the valve pocket of the output check valve of 2 Small Plunger Pump respectively.Above-mentioned reducing motor 1 also can be formed by general motor and reduction gearing combination.If change 2 high pressure self-cleaning plunger displacement pumps arranged side by side into a plurality of high pressure self-cleaning plunger displacement pumps arranged side by side, also can conveniently form multicomponent high pressure spray machine.

Claims

1. portable bi-component high pressure spray machine; It is characterized in that comprising reducing motor, eccentric wheel, eccentric shaft, connecting rod, push rod, axle sleeve, interlock plate, 2 Small Plunger Pump, 2 stock bottles and frame; Said reducing motor is installed in the frame rear portion, and eccentric wheel is packed on the output shaft of reducing motor, and 2 Small Plunger Pump are installed in frame front side by side; The steel plunger rod rear end of 2 Small Plunger Pump is fixedly connected with the push rod front end through the interlock plate; The push rod warp beam sleeve is installed in central rack, and putting back-end is connected with connecting rod one end through turning cylinder, and the connecting rod other end is contained on the eccentric eccentric shaft; 2 stock bottles are inverted on the frame of Small Plunger Pump top, and 2 raw material bottlenecks are communicated with 2 charging apertures of 2 Small Plunger Pump respectively.

2. portable bi-component high pressure spray machine as claimed in claim 1; It is characterized in that the output check valve that said Small Plunger Pump comprises the pump housing, steel plunger rod, sealing ring, copper wiper ring, become with compression spring set by unidirectional valve ball; Said pump housing front portion is provided with valve pocket and the discharging opening that the output check valve is installed; Pump housing rear portion is provided with the copper pump chamber and communicates with valve pocket, and the steel plunger rod is installed in the copper pump chamber, and steel plunger rod rear end is stretched out the copper pump chamber and is used for being connected with driving mechanism with the copper wiper ring; The pump housing at copper pump chamber middle part is provided with charging aperture; Be provided with internal thread in the rear port of copper pump chamber, copper wiper ring front portion is provided with external screw thread and is provided with than the imperial palace accent, and the copper wiper ring is installed on the rear port of copper pump chamber through internal and external screw thread; Ring set is on the steel plunger rod and be embedded on the anterior interior accent of copper wiper ring; Copper wiper ring rear sleeve is contained on the steel plunger rod, and the anterior interior accent of said copper wiper ring is toroidal, sealing ring be with the copper wiper ring in the corresponding conical seal ring of toroidal of accent.

3. portable bi-component high pressure spray machine as claimed in claim 2; It is characterized in that also comprising 2 Pressure gauges and 2 overvoltage protection switches, the input of said 2 Pressure gauges and 2 overvoltage protection switches is communicated with the valve pocket of the output check valve of 2 Small Plunger Pump respectively.

4. like claim 1 or 2 or 3 described portable bi-component high pressure spray machines, it is characterized in that reducing motor is made up of motor and reduction gearing.