CN208812387U - A kind of efficient foam gun - Google Patents
A kind of efficient foam gun Download PDFInfo
- Publication number
- CN208812387U CN208812387U CN201821501131.8U CN201821501131U CN208812387U CN 208812387 U CN208812387 U CN 208812387U CN 201821501131 U CN201821501131 U CN 201821501131U CN 208812387 U CN208812387 U CN 208812387U
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- cavity
- oil cylinder
- piston
- mixing
- piston oil
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Abstract
The utility model provides a kind of efficient foam gun, including mixing head, first piston oil cylinder, second piston oil cylinder, pipette tips, the front side of mixing head is arranged in the pipette tips, the first piston oil cylinder is in the rear side that mixing head is arranged in, the second piston oil cylinder is in the upside that mixing head is arranged in, a pair of nozzles are provided in the mixing head, mixing cavity, discharge cavity, from nozzle by the raw material of two components respectively to mixing cavity high-pressure injection, the mixing cavity is connect with discharging cavity, the First piston bar of first piston oil cylinder moves in discharging cavity, it further include that the inductive probe of the position signal of piston is provided to control system, the side of the end cap of the first piston oil cylinder is equipped with the installation cavity for installing inductive probe, the installation cavity is equipped with the installation step for placing restrictions on the inductive probe stroke.Positioning when inductive probe installation is realized by setting installation step, can be prevented first piston head when movement from colliding inductive probe, effectively be controlled use cost.
Description
Technical field
The utility model relates to polyurethane foam gun technical fields, are to be related to a kind of efficient foam gun more specifically.
Background technique
High pressure foaming machine mixing pipette tips are the significant components of polyurethane foaming machine, and the working principle of polyurethane foam is:
" white material " and " black material " two kinds of raw materials are commonly called as to be injected in by nozzle in the mixing cavity of mixing head, white material and black material mixing after by
The First piston bar of high-pressure foam rifle is pushed in the cavity that need to be foamed, such as the insulating layer cavity of refrigerator, mixed raw material
Chemical reaction occurs quickly to form foam and condense hardening.High-pressure foam rifle is usually lived by mixing head, first piston oil cylinder, second
Oil cylinder composition is filled in, before starting foaming, the second piston bar of second piston oil cylinder is lifted up, and opens mixing cavity, and foaming is opened
Begin, the white material of high pressure and black material are injected from two nozzle mesohighs spray respectively, mix in mixing cavity, and going out from through hole shape
Expect to enter cavity to be foamed in cavity, foaming terminates, and second piston bar moves down closing mixing cavity, first piston oil cylinder
First piston bar moves along the discharging cavity of through hole shape, and clout is released mixing chamber.
Currently, the piston of first piston oil cylinder does not position, and it is generally provided with inductive probe on first piston oil cylinder, with
The position signal of piston is provided to control system.Inductive probe majority is arranged in the side of piston, however in piston motion, the
One piston head is easy to collide inductive probe, so will cause the damage of inductive probe, and the price of inductive probe compares
Valuableness, procurement cycle are long, thus will increase use cost.
Further, since there are gaps between First piston bar and the cavity wall for mixing cavity, it is easy to cause remaining raw material attached
Lead to Crystallization Plugging pipeline between the cavity wall and First piston bar of mixing cavity, for a long time, is easy to appear foaming gun body
Component wear causes gun body to be scrapped when serious.To slow down piston rod abrasion condition, at present by setting peep hole and in peep hole
In toward the outer wall of First piston bar coat DOP (dioctyl phthalate), to clean the remaining foam material of pipette tips, still, this is done
Method is difficult to that DOP is made to enter mixing chamber cleaning inside lubrication, undesirable so as to cause effect.
Utility model content
The purpose of this utility model is to provide a kind of efficient foam gun, be avoided that inductive probe in use by
It hits, with overcome the deficiencies in the prior art.
The technical scheme in the invention for solving the technical problem is: a kind of efficient foam gun, including mixing head, the first work
Oil cylinder, second piston oil cylinder, pipette tips are filled in, the front side of mixing head is arranged in the pipette tips, and the first piston oil cylinder exists in setting
The rear side of mixing head, the second piston oil cylinder be provided in the upside that mixing head is set, the mixing head a pair of nozzles,
Mixing cavity, discharging cavity, from nozzle by the raw material of two components respectively to mixing cavity high-pressure injection, the mixing cavity with go out
Expect cavity connection, the First piston bar of first piston oil cylinder moves in discharging cavity, the second piston bar of second piston oil cylinder
It is moved in mixing cavity, further includes that the inductive probe of the position signal of piston is provided to control system, the first piston oil
The side of the end cap of cylinder is equipped with the installation cavity for installing inductive probe, and the installation cavity is equipped with and places restrictions on the inductive probe row
The installation step of journey.
Further include setting DOP lubricating arrangement, fabrication hole is equipped in the mixing head, the fabrication hole and discharging cavity connect
Logical, the DOP lubricating arrangement is arranged in fabrication hole；The DOP lubricating arrangement includes poppet shaft and is arranged in fabrication hole
Axle sleeve, the axle sleeve include core bore and cone chamber, and the poppet shaft includes needle column, frustum, and the frustum is adapted with cone chamber, described
Needle column may pass through the core bore, the poppet shaft setting center flow channels and branch flow passage, branch flow passage one end connection center
Runner, another end opening are in the outside wall surface of the frustum.
The poppet shaft further includes the seal section being linked in sequence, thread segment, base portion, and ring is arranged in the outer wall of the seal section
Slot, the annular groove is interior to be arranged sealing ring.
The thread segment is threadedly coupled with the fabrication hole.
The DOP lubricating arrangement further includes plug, and the plug is mounted on the open end of center flow channels.
The beneficial effects of the utility model are:
The utility model provides a kind of efficient foam gun, is realized by setting installation step and is determined when inductive probe installation
Position can prevent first piston head when movement from colliding inductive probe, effectively control use cost.
In addition, increasing the lubricating arrangement that can facilitate injection DOP, core of the DOP from lubricating arrangement in the fabrication hole of mixing head
The mixing cavity flowed into shafting oil road avoids the blocking of mixing cavity and stuff-spraying pipe (First piston bar), improves production effect
Rate and product quality reduce the failure rate of mixing pipette tips.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the efficient foam gun of the utility model.
Fig. 2 is the partial sectional view of the efficient foam gun of the utility model.
Fig. 3 is the partial sectional view (main view) that header structure is mixed in the utility model.
Fig. 4 is the partial sectional view (left view) of end cover structure in the utility model.
Fig. 5 is the cross-sectional view of the line A-A of the utility model middle-end cover rim Fig. 4.
Fig. 6 is the cut-away view of DOP lubricating arrangement in the utility model.
Fig. 7 is the core shaft structure schematic diagram of DOP lubricating arrangement in the utility model.
Fig. 8 is the axle sleeve structure schematic diagram of DOP lubricating arrangement in the utility model.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " transverse direction ", "upper", "lower", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.Unless
It is otherwise noted, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should broadly understood, for example, it may be being fixedly connected.It may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Referring to Fig. 1-8, a kind of efficient foam gun, including mixing head 1, first piston oil cylinder 2, second piston oil cylinder 3, isolation
Cover 4, pipette tips 5, DOP lubricating arrangement 6；The front side of mixing head 1 is arranged in pipette tips 5, and mixing head 1 is arranged in first piston oil cylinder 2
The upside of mixing head 1 is arranged in rear side, second piston oil 3, and the downside of mixing head 1, separation sleeve 4 is then arranged in DOP lubricating arrangement 6
It is arranged between mixing head 1 and first piston oil cylinder 2.
The left and right sides of mixing head 1 is equipped with the feed inlet 12 and feedback outlet 13 of nozzle chambers 11, foaming raw material, and front side is equipped with
The discharge port 14 of mixed material；Between feed inlet 12 and discharge port 14, feedback outlet 13 is located above nozzle chambers 11.Nozzle chambers
The nozzle of high-pressure injection is installed, nozzle is piston type nozzle, and end is injection orifice, has needle in nozzle in 11.Mixing head 1
Inside is equipped with charging cavity 15, feed back cavity 16, discharging cavity 17, mixing cavity 18, and mixing cavity 18 and discharging cavity 17 hang down
Straight intersection；Charging cavity 15 is communicated with ipsilateral feed inlet 12 and nozzle chambers 11, feed back cavity 16 and ipsilateral 13 phase of feedback outlet
Logical, discharging cavity 17 is communicated with discharge port 14, and discharge port 14 is communicated with pipette tips 5, and mixing cavity 18 can be with nozzle chambers 11, feed back chamber
Road 16, discharging cavity 17 communicate.It is fabrication hole 19 in the lower part of mixing head 1, the underface of mixing cavity 18, due to mixing cavity
18 terminate in discharging cavity 17, it is therefore desirable to its machining is realized by fabrication hole 19.
First piston oil cylinder 2 include Ffirst cylinder 21, first piston head 22, First piston bar 23, first piston head 22 with
First piston bar 23 is fixedly connected, and first piston head 22 is located in Ffirst cylinder 21, and First piston bar 23 can be along discharging cavity 17
Move back and forth.Setting seal assembly 41 enters the first oil cylinder to prevent foam material from driving in the wrong direction along 23 surface of First piston bar in separation sleeve 4
In 21.The side of the end cap 27 of Ffirst cylinder 21 is equipped with installation cavity 25 for installing inductive probe 24, inductive probe 24 to
The position signal of control system offer piston；Installation cavity 25 is communicated with the cavity of Ffirst cylinder 21, is equipped with and is placed restrictions in installation cavity 25
The installation step 26 of 24 stroke of inductive probe, inductive probe 24, which can only stretch to, to be resisted against on installation step 26, cannot extend into
In the cavity of Ffirst cylinder 21, it is avoided that when first piston head 22 moves in the cavity of Ffirst cylinder 21 and collides inductive probe
24。
Referring to Fig. 6-8, DOP lubricating arrangement 6 is set in fabrication hole 19, using the particularity of mixing head fabrication hole 19, with profit
Sliding device replaces original fabrication hole plug, without other lubricant injection canal.DOP lubricating arrangement 6 includes poppet shaft
61, plug 64, axle sleeve 62, sealing ring 63, axle sleeve 62 are arranged on the step of fabrication hole 19, and the inner end of axle sleeve 62 includes core bore
622 and cone chamber 623, the front end of poppet shaft 61 protrude into bore sleeve, poppet shaft 61 includes needle column 612 in order, frustum 613, close
Section, thread segment 615, base portion 616 are sealed, center flow channels 610 are arranged in poppet shaft 61, and center flow channels are the through-hole that three sections of diameters successively decrease,
Its end face for being opened on base portion 616, inner end connect two branch flow passages 611 being arranged in frustum 613, and two branch flow passages 611 divide
It is not opened in the outer conical surface of poppet shaft frustum.The needle column 612 of poppet shaft 61, frustum 613 outer profile respectively with axle sleeve 62
Core bore 622, cone chamber 623 be adapted, when poppet shaft screws in fabrication hole 15, the frustum 613 of poppet shaft is pressed on the cone chamber of axle sleeve
623 wall surfaces close the outlet of two branch flow passages 611, at this point, the needle column 612 of poppet shaft stretches out 622 outside of core bore of axle sleeve,
Close to the active type face of First piston bar, remaining foam material only forms very thin buildup layer on the position.Poppet shaft 61 it is close
It seals section outer wall and annular groove is set, be built-in with sealing ring 63, form mobile sealing between 62 inner wall of axle sleeve and poppet shaft 61 and pay.Spool
External screw thread is arranged in the thread segment 615 of axis 61, is threaded on the entrance internal screw thread of fabrication hole 19, center flow channels 610 are in base portion
616 position is provided with internal screw thread, in order to which plug 64 is tightened in poppet shaft 61, prevents dust from entering center flow channels 610.When
When poppet shaft 61 screws out outward, the needle column 612 of poppet shaft from being fallen back in core bore 622 in cone chamber 623, the frustum 613 of poppet shaft from
623 wall surface of cone chamber for opening axle sleeve makes frustum 613 and bores the gap for being formed between 623 inner wall of chamber and DOP lubricant being allowed to pass through, DOP
Lubricant can respectively from two branch flow passages 611 pass through core bore 622, hence into discharging cavity in, by the inner wall for the cavity that discharges with
Product bubble between First piston bar surface is removed, to have the function that First piston bar lubricates.Even if in the outer end of needle column 612
Product has very thin foam material on face, and when needle column screws out, the foam material sticked on its end face will be torn, and fabrication hole is made to discharge
The opening of chamber will not be blocked.
The operating procedure of filling DOP lubricant is: plug 64 taken out, poppet shaft 61 (rotary valve mandrel 2-3 circle) is unscrewed, to
The DOP filler of poppet shaft injects DOP lubricant, when filling, drives First piston bar while filling, is evenly arranged on DOP
First piston bar surface.After filling, plug and poppet shaft are screwed back.
The second piston bar 31 of second piston oil cylinder 3 is moved up and down along mixing cavity 18, and bottom end two sides are equipped with groove,
It is open towards ipsilateral feed back cavity 16, for being connected to ipsilateral nozzle chambers 11 and feed back cavity 16.In the state of no foaming
Under lower or foaming original state, the groove of 31 bottom end of second piston bar is connected to ipsilateral nozzle chambers 11 and feed back cavity 16, and
Communicate nozzle chambers 11 with mixing cavity 18, raw material enters nozzle chambers 11 through feeding cavity 15, by nozzle injection to groove
It is interior, then feedback outlet 13 is back to through feed back cavity 16.In the operating condition, second piston oil cylinder 3 drives in second piston bar 31
Row, is connected to nozzle chambers 11 with mixing cavity 18, and raw material enters nozzle chambers 11 through charging cavity 15, by nozzle by intracavitary original
Material is injected into mixing in mixing cavity 18, and mixed material is delivered to discharge port 14 through discharging cavity 17, enters through pipette tips 5 to be foamed
Cavity in.Setting injection time is reached, the lower nozzle chambers 11 of exercising of second piston bar 31 are not communicated with mixing cavity 18, and first lives
Filling in oil cylinder 2 drives First piston bar 23 that salvage stores is released discharging cavity 17, and working cycles are completed.
The utility model realizes positioning when inductive probe installation by setting installation step, first when can prevent from moving
Piston head collides inductive probe.In addition, increased in the fabrication hole of mixing head can facilitate injection DOP lubricating arrangement, DOP from
The mixing cavity flowed into the mandrel oil circuit of lubricating arrangement avoids the blocking of mixing cavity and stuff-spraying pipe (First piston bar),
Production efficiency and product quality are improved, the failure rate of mixing pipette tips is reduced.
While there has been shown and described that the embodiments of the present invention, those skilled in the art should understand that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are limited by claim and its equivalent replacement, without changing made by creative work
Into etc., it should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of efficient foam gun, including mixing head, first piston oil cylinder, second piston oil cylinder, pipette tips, the pipette tips setting exists
The front side of mixing head, the first piston oil cylinder are being mixed in the rear side that mixing head is arranged in, the second piston oil cylinder setting
The upside of head is provided with mixing cavity, discharging cavity, a pair of nozzles in the mixing head, by nozzle by the raw material of two components point
Not to mixing cavity high-pressure injection, the mixing cavity is connect with discharging cavity, the First piston bar of the first piston oil cylinder
It is moved in discharging cavity, the second piston bar of the second piston oil cylinder moves in mixing cavity, it is characterised in that: also wraps
It includes and the inductive probe of the position signal of piston is provided to control system, the side of the end cap of the first piston oil cylinder, which is equipped with, to be used
In the installation cavity of installation inductive probe, the installation cavity is equipped with the installation step for placing restrictions on the inductive probe stroke.
2. efficient foam gun according to claim 1, it is characterised in that: further include setting DOP lubricating arrangement, the mixing head
Interior to be equipped with fabrication hole, the fabrication hole is connected to discharging cavity, and the DOP lubricating arrangement is arranged in fabrication hole；The DOP profit
The axle sleeve that device includes poppet shaft with is arranged in fabrication hole is slided, the axle sleeve includes core bore and cone chamber, and the poppet shaft includes
Needle column, frustum, the frustum are adapted with cone chamber, and the needle column may pass through the core bore, and center flow channels are arranged in the poppet shaft
And branch flow passage, branch flow passage one end connection center flow channels, another end opening are in the outside wall surface of the frustum.
3. efficient foam gun according to claim 2, it is characterised in that: the poppet shaft further includes the sealing being linked in sequence
Section, thread segment, base portion, the outer wall of the seal section are arranged annular groove, sealing ring are arranged in the annular groove.
4. efficient foam gun according to claim 3, it is characterised in that: the thread segment is threadedly coupled with the fabrication hole.
5. efficient foam gun according to claim 4, it is characterised in that: the DOP lubricating arrangement further includes plug, described stifled
Head is mounted on the open end of center flow channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501131.8U CN208812387U (en) | 2018-09-13 | 2018-09-13 | A kind of efficient foam gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501131.8U CN208812387U (en) | 2018-09-13 | 2018-09-13 | A kind of efficient foam gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208812387U true CN208812387U (en) | 2019-05-03 |
Family
ID=66277076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501131.8U Expired - Fee Related CN208812387U (en) | 2018-09-13 | 2018-09-13 | A kind of efficient foam gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208812387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580490A (en) * | 2021-04-21 | 2021-11-02 | 成都盛达强科技开发有限公司 | Special high-pressure mixing head for PDCPD product |
-
2018
- 2018-09-13 CN CN201821501131.8U patent/CN208812387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580490A (en) * | 2021-04-21 | 2021-11-02 | 成都盛达强科技开发有限公司 | Special high-pressure mixing head for PDCPD product |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20190913 |