CN209050930U - A kind of spray gun of negative-pressure adsorption-type feeding - Google Patents
A kind of spray gun of negative-pressure adsorption-type feeding Download PDFInfo
- Publication number
- CN209050930U CN209050930U CN201821909039.5U CN201821909039U CN209050930U CN 209050930 U CN209050930 U CN 209050930U CN 201821909039 U CN201821909039 U CN 201821909039U CN 209050930 U CN209050930 U CN 209050930U
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- China
- Prior art keywords
- negative
- pressure adsorption
- mandril
- pipette tips
- spray gun
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Links
- 239000007921 spray Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000003032 molecular docking Methods 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005983 Infinergy® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The utility model relates to foaming-shaping apparatus technical fields, disclose a kind of spray gun of negative-pressure adsorption-type feeding, including gun barrel, one end of the gun barrel is provided with the feed inlet being fed into, rifle core is socketed with inside the other end of the gun barrel, exhaust clearance is provided between the rifle core and gun barrel, the front end of the rifle core is provided with pipette tips, the circumference of the pipette tips is provided with multiple plenum ducts, the plenum duct is communicated with exhaust clearance, the rifle core is provided with material chamber, the front end of material chamber, which is provided with, separates end, separate end and is provided with the channel passed through for foaming raw material negative-pressure adsorption, the flowing air pressure of plenum duct, which drives material chamber to form negative-pressure adsorption, sprays foaming raw material from pipette tips；Accurate feeding can be realized in positive pressure size in this spray gun control plenum duct, and single feed amount is small, moreover it is possible to avoid that blocking phenomenon occurs.
Description
Technical field
The utility model relates to foaming-shaping apparatus technical field more particularly to a kind of spray guns of negative-pressure adsorption-type feeding.
Background technique
Currently, the application of TPU foamed molded product is quite extensive, existing TPU foaming is usually all will by spray gun
TPU particle is sent into die cavity using air pressure, is then exhausted by mold, and TPU product, this air pressure postposition are formed after heating
Formula feeding is primarily present feeding and is easy to happen blocking, and is not easy to realize accurate control feeding quantity.In view of this, of the invention
People has made improvement.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, a kind of spray gun of negative-pressure adsorption-type feeding is provided,
This spray gun when in use, can accurately control the quantity of feeding, and be not susceptible to block, and fill the material of mold more equal
It is even.
To achieve the above object, the spray gun of a kind of negative-pressure adsorption-type feeding of the utility model, including gun barrel, the gun barrel
One end be provided with the feed inlet being fed into, be socketed with rifle core inside the other end of the gun barrel, the rifle core and gun barrel it
Between be provided with exhaust clearance, the front end of the rifle core is provided with pipette tips, and the circumference of the pipette tips is provided with multiple plenum ducts, institute
It states plenum duct to communicate with exhaust clearance, the rifle core is provided with material chamber, expects that the front end of chamber is provided with and separates end, separates end setting
There is the channel passed through for foaming raw material negative-pressure adsorption, the flowing air pressure of plenum duct, which drives material chamber to form negative-pressure adsorption, keeps foaming former
Material is sprayed from pipette tips.
Further, one end of the gun barrel is provided with the control valve for controlling charging, and the control valve, which is provided with, to be beaten
First gas interface and the second gas interface, the feed inlet are set to the side of control valve.
Preferably, the control valve is additionally provided with air-supply interface.
Preferably, the control valve is connected with mandril, and the mandril sequentially passes through control valve and expects chamber, after the mandril
End is connected with caging bolt, and the caging bolt is mutually perpendicular to shape with mandril and is spirally connected, and is arranged with reset spring outside the mandril, institute
The one end for stating reset spring is abutted with control valve housing, and the separation end is provided with the guide hole passed through for mandril, the reset
The other end of spring is abutted with limit spiral shell.
More preferably, the mandril is provided with axially extending bore, and the rear end of the mandril is connected with gas source connector.
Further, the pipette tips and the front end of rifle core are detachably connected for screw thread, and the pipette tips include the first docking section
The second docking section being connected with the first docking section, is provided with internal platform between first docking section and the second docking section
Rank, the internally positioned step of the inlet end of the plenum duct, the outlet side of the plenum duct are located at the outer surface of pipette tips.
Preferably, the plenum duct is beeline channel or curved channel.
The utility model has the beneficial effects that a kind of spray gun of negative-pressure adsorption-type feeding, including gun barrel, one end of the gun barrel
It is provided with the feed inlet being fed into, rifle core is socketed with inside the other end of the gun barrel, is arranged between the rifle core and gun barrel
There is exhaust clearance, the front end of the rifle core is provided with pipette tips, and the circumference of the pipette tips is provided with multiple plenum ducts, described to supply gas
Channel is communicated with exhaust clearance, and the rifle core is provided with material chamber, is expected that the front end of chamber is provided with and is separated end, separates end and be provided with for hair
The channel that bubble raw material negative-pressure adsorption passes through, the flowing air pressure of plenum duct, which drives material chamber to form negative-pressure adsorption, makes foaming raw material from rifle
Head sprays；By the way that plenum duct is arranged in pipette tips, the flowing air pressure flow forward of plenum duct drives in material chamber and is formed this spray gun
Certain negative pressure, and then make to expect that the material in chamber is extracted by the flowing air pressure in company with plenum duct and be fed together in mold, this
Kind mode only needs to control the positive pressure size in plenum duct and accurate feeding can be realized, and single feed amount is small, moreover it is possible to avoid
Blocking phenomenon occurs.
Detailed description of the invention
Fig. 1 is the assembly structure diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model pipette tips.
Appended drawing reference includes:
Gun barrel -- 1, feed inlet -- 2, rifle core -- 3, expect chamber -- 31, separate end -- 32, channel -- 33, exhaust clearance -- 4, rifle
Head -- 5, the first docking section -- 51, the second docking section -- 52, plenum duct -- 53, control valve -- 6, the first gas interface -- 61, the
Two gas interfaces -- 62, interface of blowing -- 63, piston -- 64, mandril -- 7, caging bolt -- 71, reset spring -- 72.
Specific embodiment
1 the utility model is described in detail to attached drawing 2 with reference to the accompanying drawing.
When the utility model is used, needing a kind of spray gun of negative-pressure adsorption-type feeding described in the utility model, dress
In in corresponding foam process equipment, the utility model includes gun barrel 1, one end of the gun barrel 1 be provided be fed into
Material mouth 2 is socketed with rifle core 3 inside the other end of the gun barrel 1, exhaust clearance 4, institute is provided between the rifle core 3 and gun barrel 1
The front end for stating rifle core 3 is provided with pipette tips 5, and the circumference of the pipette tips 5 is provided with multiple plenum ducts 53, the plenum duct 53 with
Exhaust clearance 4 communicates, and the rifle core 3 is provided with material chamber 31, and the front end of material chamber 31, which is provided with, separates end 32, separates end and is provided with confession
The channel 33 that foaming raw material (such as E-TPU) negative-pressure adsorption passes through, the flowing air pressure of plenum duct 53 drive material chamber 31 to form negative pressure
Absorption sprays foaming raw material from pipette tips 5；This spray gun by pipette tips 5 be arranged plenum duct 53, the plenum duct 53 it is interior
End diameter is about between 0.5~3mm, and outer diameter is between 3~13mm, and in charging, the foaming raw material of the types such as TPU is in gas
Pressure effect is lower to be entered in molding die, and the flowing air pressure flow forward of plenum duct drives in material chamber and forms certain negative pressure, into
And make to expect that the material in chamber is extracted by the flowing air pressure in company with plenum duct and be fed together in mold, this mode only needs to control
Accurate feeding can be realized in positive pressure size in plenum duct processed, and single feed amount is small, moreover it is possible to avoid that blocking phenomenon occurs.
In order to accurately control charging, one end of the gun barrel 1 is provided with the control valve 6 for controlling charging, the control
Valve 6 processed, which is provided with, makes a call to the first gas interface 61 and the second gas interface 62, and the feed inlet 2 is set to the side of control valve 6, feed inlet
2 are provided with clamping lantern ring, so that it is convenient to assemble and disassemble to feed pipe, feed pipe is commonly attached to clamping lantern ring connection feed pipe
Storage tank, the connection of the first gas interface 61 and the second gas interface 62 are all connected with tracheae, and two gas interfaces are interactive interface, when first
When gas interface 61 is inwardly ventilated, the control valve 6 is in the open state, when the second gas 62 inward channel of interface, at control valve 6
In closed state, to prevent from continuing base feed into material chamber 31.
The control valve 6 is connected with mandril 7 as a further improvement of the utility model, and the mandril 7 sequentially passes through control
Valve 6 and material chamber 31 processed, the rear end of the mandril 7 are connected with caging bolt 71, and the caging bolt 71 is mutually perpendicular to shape with mandril 7
It is spirally connected, is arranged with reset spring 72 outside the mandril 7, one end of the reset spring 72 is abutted with the shell of control valve 6, described
The other end of reset spring 72 is abutted with limit spiral shell.When the feed inlet 2 of part moulded products uses larger grain in forming process
When diameter, it is easy to form blocking with pipette tips 5, therefore, in the present solution, the separation end 32 is provided with the guide hole passed through for mandril 7, benefit
It sequentially passes through guide hole, pipette tips 5 with mandril 7 directly to eject the clout part of blocking, to make to feed smooth next time.
In order to further increase the efficiency of feeding, the control valve 6 is additionally provided with air-supply interface 63.The air-supply interface 63
Compression gas pipe is connected, pushes the piston 64 of mandril to move forward using compressed gas, goes out it by blocking raw material.
In a upper scheme, the diameter of usual mandril 7 will be far smaller than the internal diameter of pipette tips 5, when institute after ejection, can also produce
The raw material bits to fall off, therefore, the mandril 7 is provided with axially extending bore, and the rear end of the mandril 7 is connected with gas source connector.It utilizes
Gas source when ejecting clout, further blow by cooperation, removes material bits etc. all.
In the technical scheme, the pipette tips 5 and the front end of rifle core 3 are detachably connected for screw thread, in this way, can be convenient pair
Pipette tips 5 are replaced to adapt to different product moldings, the pipette tips 5 include the first docking section 51 and with 51 phase of the first docking section
Second docking section 52 of connection, is provided with interior step between first docking section 51 and the second docking section 52, described to supply gas
The internally positioned step of the inlet end in channel 53, the outlet side of the plenum duct 53 are located at the outer surface of pipette tips 5.This structure can
It is blocked with preventing raw material from being formed to inlet end, raw material is all introduced into mold, and gas can be discharged from plenum duct 53.
In the present solution, the plenum duct 53 is beeline channel or curved channel.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (7)
1. a kind of spray gun of negative-pressure adsorption-type feeding, including gun barrel, it is characterised in that: one end of the gun barrel be provided be fed into
The feed inlet entered is socketed with rifle core inside the other end of the gun barrel, is provided with exhaust clearance between the rifle core and gun barrel, institute
The front end for stating rifle core is provided with pipette tips, and the circumference of the pipette tips is provided with multiple plenum ducts, between the plenum duct and exhaust
Gap communicates, and the rifle core is provided with material chamber, expects that the front end of chamber is provided with and separates end, separates end and is provided with for the suction of foaming raw material negative pressure
The attached channel passed through, the flowing air pressure of plenum duct, which drives material chamber to form negative-pressure adsorption, sprays foaming raw material from pipette tips.
2. a kind of spray gun of negative-pressure adsorption-type feeding according to claim 1, it is characterised in that: one end of the gun barrel is set
It is equipped with the control valve for controlling charging, the control valve, which is provided with, makes a call to the first gas interface and the second gas interface, the feed inlet
It is set to the side of control valve.
3. a kind of spray gun of negative-pressure adsorption-type feeding according to claim 2, it is characterised in that: the control valve is connected with
Mandril, the mandril sequentially pass through control valve and material chamber, and the rear end of the mandril is connected with caging bolt, the caging bolt with
Mandril is mutually perpendicular to shape and is spirally connected, and reset spring, one end of the reset spring and control valve housing are arranged with outside the mandril
It abuts, the separation end is provided with the guide hole passed through for mandril, and the other end of the reset spring is abutted with limit spiral shell.
4. a kind of spray gun of negative-pressure adsorption-type feeding according to claim 3, it is characterised in that: the control valve is also set up
There is air-supply interface.
5. a kind of spray gun of negative-pressure adsorption-type feeding according to claim 3, it is characterised in that: the mandril is provided with axis
To through-hole, the rear end of the mandril is connected with gas source connector.
6. a kind of spray gun of negative-pressure adsorption-type feeding according to claim 1, it is characterised in that: the pipette tips and rifle core
Front end is detachably connected for screw thread, and the pipette tips include the first docking section and the second docking section for being connected with the first docking section,
It is provided with interior step between first docking section and the second docking section, the inlet end of the plenum duct internally positioned
Rank, the outlet side of the plenum duct are located at the outer surface of pipette tips.
7. a kind of spray gun of negative-pressure adsorption-type feeding according to claim 6, it is characterised in that: the plenum duct is straight
Line passage or curved channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909039.5U CN209050930U (en) | 2018-11-20 | 2018-11-20 | A kind of spray gun of negative-pressure adsorption-type feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909039.5U CN209050930U (en) | 2018-11-20 | 2018-11-20 | A kind of spray gun of negative-pressure adsorption-type feeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209050930U true CN209050930U (en) | 2019-07-02 |
Family
ID=67053882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821909039.5U Expired - Fee Related CN209050930U (en) | 2018-11-20 | 2018-11-20 | A kind of spray gun of negative-pressure adsorption-type feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209050930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421734A (en) * | 2020-03-06 | 2020-07-17 | 青岛海尔电冰箱有限公司 | Refrigerator body foaming method |
-
2018
- 2018-11-20 CN CN201821909039.5U patent/CN209050930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421734A (en) * | 2020-03-06 | 2020-07-17 | 青岛海尔电冰箱有限公司 | Refrigerator body foaming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |