CN107560440A - The processing method of spray gun pipette tips, the spray gun with it and spray gun pipette tips - Google Patents
The processing method of spray gun pipette tips, the spray gun with it and spray gun pipette tips Download PDFInfo
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- CN107560440A CN107560440A CN201710854471.2A CN201710854471A CN107560440A CN 107560440 A CN107560440 A CN 107560440A CN 201710854471 A CN201710854471 A CN 201710854471A CN 107560440 A CN107560440 A CN 107560440A
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- 239000007921 spray Substances 0.000 title claims abstract description 84
- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000237509 Patinopecten sp. Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 235000020637 scallop Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The invention discloses the processing method of a kind of spray gun pipette tips, the spray gun with it and spray gun pipette tips, spray gun pipette tips include：Outer tube；Inner tube, inner tube are located in outer tube, and the outside wall surface of inner tube limits first gas passage along its circumferentially-spaced the first projection for opening distribution, the first raised only internal face to outer tube provided with multiple so as to be spaced apart between the outside wall surface of inner tube and the internal face of outer tube；Central tube, central tube is located in inner tube, the outside wall surface of central tube is provided with multiple along its circumferentially-spaced the second projection for opening distribution, the second raised only internal face to inner tube limits second gas passage so as to be spaced apart between the outside wall surface of central tube and the internal face of inner tube, and central tube is interference fitted with inner tube.Spray gun pipette tips according to embodiments of the present invention, central tube and inner tube are arranged to Split type structure and by interference fit, simple in construction, machine-shaping is convenient, and cost is cheap.
Description
Technical field
The present invention relates to manufacturing field of equipment, more particularly, to a kind of spray gun pipette tips, has its spray gun and spray gun rifle
The processing method of head.
Background technology
In nonferrous metallurgy field, spray gun is that one kind provides the multiple gases such as oxygen, compressed air, natural gas into metallurgical furnace
Equipment, typically formed by being nested inside and outside multitube.In general, inner tube pipette tips are processed into given shape, such as cellular tissue, or
Uniform scallop hole tissue, after being inserted in outer tube, the gap of inner tube and outer tube is a kind of passage of gas, above-mentioned inner tube pipette tips
Given shape turn into another gas passage, but traditional spray gun pipette tips processing it is relatively difficult, cost is higher.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem to a certain extent.
Therefore, the present invention proposes a kind of spray gun pipette tips simple in construction, easy to process.
The present invention also proposes a kind of spray gun with above-mentioned spray gun pipette tips.
The present invention also proposes a kind of method for processing above-mentioned spray gun pipette tips.
The spray gun pipette tips of embodiment according to a first aspect of the present invention, including：
Outer tube；Inner tube, said inner tube are located in the outer tube, and the outside wall surface of said inner tube is provided with multiple circumferentially-spaced along its
Open it is the first of distribution raised, the described first raised only internal face to the outer tube so that the outside wall surface of said inner tube with it is described outer
It is spaced apart between the internal face of pipe and limits first gas passage；Central tube, the central tube is located in said inner tube, in described
The outside wall surface of heart pipe is provided with multiple only interior to said inner tube along its circumferentially-spaced the second projection for opening distribution, second projection
Wall limits second gas passage so as to be spaced apart between the outside wall surface of the central tube and the internal face of said inner tube, described
Central tube is interference fitted with said inner tube.
Spray gun pipette tips according to embodiments of the present invention, by the way that central tube and inner tube are arranged into Split type structure and passed through
It is full of cooperation, simple in construction, machine-shaping is convenient, and cost is cheap.
In addition, spray gun pipette tips according to embodiments of the present invention, can also have technical characteristic additional as follows：
According to one embodiment of present invention, said inner tube and the outer coaxial tube and interference fit, multiple described first
It is raised respectively approximately along said inner tube radially extend and uniform intervals are opened in the outside wall surface of said inner tube.
According to one embodiment of present invention, the central tube and said inner tube are coaxial, multiple described second raised difference
Approximately along the central tube radially extend and uniform intervals are opened in the outside wall surface of the central tube.
According to one embodiment of present invention, the central, tubular turns into pipe, during multiple described second is raised and described
The outside wall surface of heart pipe is weldingly connected.
According to one embodiment of present invention, the central tube includes multiple connecting portions, and multiple connecting portions are described in
The circumference of inner tube, which is sequentially connected, is generally formed into pipe, and it is raised to be respectively equipped with described second on each connecting portion.
According to one embodiment of present invention, the connecting portion is formed as fanning annular or trapezoidal.
According to one embodiment of present invention, the connecting portion is integrally formed with second projection.
The spray gun of embodiment according to a second aspect of the present invention, including the spray gun pipette tips according to above-described embodiment.
The processing method of the spray gun pipette tips of embodiment according to a third aspect of the present invention, comprises the following steps：
S1, processing inner tube, the outside wall surface of said inner tube is provided with multiple circumferentially-spaced opens the first raised of distribution along its；
S2, the requirement of space accounting and spray gun pipette tips overall dimensions requirement machining center pipe are regarded according to spray gun pipette tips inside,
The outside wall surface of the central tube is provided with multiple along its circumferentially-spaced the second projection for opening distribution；
S3, the central tube is plugged in said inner tube and is interference fitted with said inner tube；
S4, outer tube is set in said inner tube exterior it is made into the spray gun pipette tips.
According to one embodiment of present invention, in the step S1, said inner tube using steel pipe as blank, using milling or
Linear cutter is molded.
According to one embodiment of present invention, in the step S2, when the described second raised week in the central tube
Upward thickness, the two neighboring described second raised minimum clearance being spaced apart in the outside wall surface of the central tube reach pre-
During definite value, the central, tubular turns into pipe, and multiple the second described raised outside wall surfaces with the central tube are weldingly connected.
According to one embodiment of present invention, in the step S2, when the described second raised week in the central tube
Upward thickness, the two neighboring described second raised minimum clearance for being spaced apart in the outside wall surface of the central tube are respectively less than pre-
During definite value, the central tube is made up of multiple connecting portions, and multiple connecting portions are sequentially connected substantially along the circumference of said inner tube
Be formed as pipe, it is raised to be respectively equipped with described second on each connecting portion.
According to one embodiment of present invention, in the step S3, will be pressed directly into after multiple connecting portion combinations
In said inner tube.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is a structural representation of the inner tube of conventional lance pipette tips；
Fig. 2 is another structural representation of the inner tube of conventional lance pipette tips；
Fig. 3 is the structural representation of spray gun pipette tips according to embodiments of the present invention；
Fig. 4 is the structural representation that the inner tube of spray gun pipette tips according to embodiments of the present invention connects with central tube；
Fig. 5 is another structural representation that the inner tube of spray gun pipette tips according to embodiments of the present invention connects with central tube；
Fig. 6 is the structural representation of the inner tube of spray gun pipette tips according to embodiments of the present invention；
Fig. 7 is a structural representation of the central tube of spray gun pipette tips according to embodiments of the present invention；
Fig. 8 is another structural representation of the central tube of spray gun pipette tips according to embodiments of the present invention；
Fig. 9 is the structural representation of the connecting portion of spray gun pipette tips according to embodiments of the present invention；
Figure 10 is the flow chart of spray gun pipette tips processing method according to embodiments of the present invention.
Reference：
Spray gun pipette tips 100；Outer tube 10；
Inner tube 20；First projection 21；
Central tube 30；Second projection 31；Connecting portion 32.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " on ", " under ", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " are based on side shown in the drawings
Position or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or the device or member that imply meaning
Part must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit finger
The quantity of bright indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include
One or more this feature.In the description of the invention, " multiple " are meant that two or more, unless otherwise bright
It is really specific to limit.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can be machine
Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
The present invention is present inventor based on the fact that made innovation and creation.
The spray gun pipette tips inner tube and central tube of prior art are integrally formed, and in order to ensure to supply area, the pipette tips of processing are horizontal
Generally there is certain requirement in the cavity in section, as shown in figure 1, in option A, inner tube 1 is formed by bar using linear cutter,
The aisle space accounting of formation is larger, as shown in Fig. 2 in option b, some circular holes has been drilled on the section of inner tube 2, have been formd
Cellular tissue.Above two traditional scheme, which exists, processes the problem of time-consuming, cost is high, such as：Option A is real in certain engineering
In example, when being taken using one pipette tips of linear cutter more than 48 machine-team, and in option b, if pipette tips length direction exceedes necessarily
After size, punching cost is also higher, and in punching, centralized positioning is also more difficult.
Based on above-mentioned technical problem existing for prior art, present inventor is ground to traditional spray gun pipette tips
Study carefully and improve, the processing method for proposing a kind of spray gun pipette tips, the spray gun with it and spray gun pipette tips.
Spray gun pipette tips 100 according to embodiments of the present invention are specifically described with reference to accompanying drawing first below.
As shown in Figures 3 to 5, spray gun pipette tips 100 according to embodiments of the present invention include outer tube 10, inner tube 20 and central tube
30。
Specifically, inner tube 20 is located in outer tube 10, and the outside wall surface of inner tube 20 is provided with multiple circumferentially-spaced opens distribution along its
The first projection 21, the first projection 21 only the internal face to outer tube 10 so that outside wall surface and the outer tube 10 of inner tube 20 internal face it
Between be spaced apart and limit first gas passage, central tube 30 is located in inner tube 20, and the outside wall surface of central tube 30 is provided with multiple along it
Circumferentially-spaced the second projection 31 for opening distribution, second projection 31 only to inner tube 20 internal face so that the outside wall surface of central tube 30 with
It is spaced apart between the internal face of inner tube 20 and limits second gas passage, central tube 30 is interference fitted with inner tube 20.
In other words, spray gun pipette tips 100 according to embodiments of the present invention are mainly by 30 groups of outer tube 10, inner tube 20 and central tube
Into.Wherein, outer tube 10 is set in outside inner tube 20, as shown in fig. 6, inner tube 20 is provided with multiple first projections 21, first is raised
21 are spaced apart along in the axial direction of the outside wall surface of inner tube 20, and the first projection 21 only supports the internal face of outer tube 10, the outer wall of inner tube 20
The internal face and the first projection 21 of face and outer tube 10 limit multiple first gas passages jointly, and a kind of gas in spray gun can
So that by being sprayed in first gas passage, inner tube 20 is set on central tube 30 and is interference fitted with central tube 30, Stability Analysis of Structures,
As shown in fig. 7, the outside wall surface of central tube 30 is provided with multiple second projections 31, the second projection 31 only supports the internal face of inner tube 20,
The outside wall surface of central tube 30 and the internal face of inner tube 20 and the second projection 31 limit multiple second gas passages, spray gun jointly
In another gas can be sprayed by second gas passage.
Thus, spray gun pipette tips 100 according to embodiments of the present invention, by the way that central tube 30 and inner tube 20 are arranged into split knot
Structure and by interference fit, simple in construction, machine-shaping is convenient, and cost is cheap.
According to some specific embodiments of the present invention, inner tube 20 is coaxially disposed with outer tube 10, and inner tube 20 and the mistake of outer tube 10
Be full of cooperation, multiple first projections 21 respectively approximately along inner tube 20 radially extend and uniform intervals are opened in the outside wall surface of inner tube 20
On, the spacing between two neighboring first projection 21 is equal.Thus, the gas that the spray gun pipette tips 100 of the structure spray is evenly.
In one embodiment of the invention, central tube 30 is coaxially disposed with inner tube 20, and multiple second projections 31 are big respectively
Cause along central tube 30 radially extend and uniform intervals are opened in the outside wall surface of central tube 30, it is two neighboring second projection 31 it
Between distance it is equal.Thus, it is possible to further improve the uniformity for the gas that spray gun pipette tips 100 spray.
In one particular embodiment of the present invention, central tube 30 can be pipe, and multiple second projections 31 are formed respectively
For rectangular slab, as shown in fig. 7, the multiple second raised 31 uniform intervals are turned up the soil and are welded in the outside wall surface of central tube 30, the structure
Central tube 30 pass through rectangular slab and pipe welding fabrication, structural stability is high.
In another specific embodiment of the present invention, central tube 30 can also be made up of multiple connecting portions 32, such as Fig. 8 and
Shown in Fig. 9, circumference of multiple connecting portions 32 along inner tube 20, which is sequentially connected, is generally formed into pipe, is set respectively on each connecting portion 32
There is the second projection 31 of tabular, the pipe that multiple connecting portions 32 are combined into can be pressed directly into inner tube 20 matches somebody with somebody with the interference of inner tube 20
Close.The central tube 30 of the structure is simple in construction, avoids the connected mode of complexity, and assembling is more convenient.
Wherein, connecting portion 32 can be formed as fanning annular or trapezoidal, and connecting portion 32 can also form other shapes, as long as full
The multiple connecting portions 32 of foot can be formed as circular tube shaped after splicing.
According to one embodiment of present invention, connecting portion 32 is integrally formed with the second projection 31, the connecting portion 32 of the structure
Overall stability is not only ensure that with the second projection 31, and convenient formation, cost are cheap.
Sum it up, spray gun pipette tips 100 according to embodiments of the present invention, by being provided with multiple the in the outside wall surface of inner tube 20
One projection 21, the first projection 21 only support the internal face of outer tube 10 so that between the outside wall surface of inner tube 20 and the internal face of outer tube 10
Separate and limit first gas passage, the outside wall surface of central tube 30 is provided with multiple second projections 31, and the second projection 31 only supports inner tube
20 internal face limits second gas passage so as to be spaced apart between the outside wall surface and the internal face of inner tube 20 of central tube 30, in
Heart pipe 30 and inner tube 20 are interference fitted, and outer tube 10 is set in outside inner tube 20, simple in construction, and cost is cheap.
Spray gun according to embodiments of the present invention includes the spray gun pipette tips 100 according to above-described embodiment, due to according to the present invention
The spray gun pipette tips 100 of above-described embodiment have above-mentioned technique effect, and therefore, spray gun according to embodiments of the present invention also has corresponding
Technique effect, i.e. spray gun pipette tips 100 are simple in construction, convenient formation, and cost is cheap.
Other of spray gun according to embodiments of the present invention are formed and operated for those of ordinary skills all
It is known, is not detailed herein.
The processing method of spray gun pipette tips 100 according to embodiments of the present invention is detailed below.
As shown in Figure 10, the processing method of spray gun pipette tips 100 according to embodiments of the present invention, comprises the following steps：
S1, processing inner tube 20, the outside wall surface of inner tube 20 is provided with multiple along its circumferentially-spaced the first projection 21 for opening distribution；
S2, according to being regarded inside spray gun pipette tips 100, space accounting is required and the overall dimensions of spray gun pipette tips 100 are required in processing
Heart pipe 30, the outside wall surface of central tube 30 is provided with multiple along its circumferentially-spaced the second projection 31 for opening distribution；
S3, central tube 30 is plugged in inner tube 20 and is interference fitted with inner tube 20；
S4, outer tube 10 is set in the exterior of inner tube 20 it is made into spray gun pipette tips 100.
Specifically, in step sl, the outside wall surface of inner tube 20 is provided with multiple along the first convex of its circumferentially-spaced distribution
21 are played, the first projection 21 can be formed as strip rectangular slab, and in step s 2, the processing mode of central tube 30 can have more
Kind, the requirement of space accounting and the requirement of the overall dimensions of spray gun pipette tips 100, and deposited strength etc. are regarded according to the inside of spray gun pipette tips 100
Factor, the method for selecting suitable machining center pipe 30, the outside wall surface of central tube 30 process multiple along its circumferentially-spaced distribution
Second projection 31, the second projection 31 can be formed as multiple strip rectangular slabs, and in step s3, inner tube 20 is set in central tube
On 30, the inwall of inner tube 20 is close to the outer wall of central tube 30, and inner tube 20 connects with the interference fit of central tube 30, in step s 4,
Outer tube 10 is set in the exterior of inner tube 20 and is made into rifle pipette tips.
Thus, by processing central tube 30 and inner tube 20 respectively, the outside wall surface of central tube 30 and inner tube 20 is respectively equipped with
First projection 21 and the second projection 31, inner tube 20 are set in outside central tube 30 and are interference fitted with central tube 30, and outer tube 10 is arranged
Outside inner tube 20, processing technology is simple, and cost is cheap.
Preferably, in step sl, inner tube 20 is molded, processing side using steel pipe as blank using milling or linear cutter
Formula is simple, workable.
According to one embodiment of present invention, in step s 2, the thickness when the second projection 31 in the circumference of central tube 30
Degree, two neighboring second projection 31 in the outside wall surface of central tube 30 be spaced apart minimum clearance reach predetermined value when, and
Under conditions of meeting deposited strength, central tube 30 is formed as pipe, and the multiple second projection 31 and the outside wall surface of central tube 30 are welded
Connect connected.
According to still another embodiment of the invention, in step s 2, when the second projection 31 is in the circumference of central tube 30
Thickness, two neighboring second projection 31 in the outside wall surface of central tube 30 be spaced apart minimum clearance be respectively less than predetermined value when, and
In the case where welding space, welding deformation are difficult to control or weld strength is not easy guarantee, central tube 30 can be by multiple companies
Socket part 32 is formed, and circumference of multiple connecting portions 32 along inner tube 20, which is sequentially connected, is generally formed into pipe, is divided on each connecting portion 32
Not She You the second projection 31, connecting portion 32 form pipe press-in inner tube 20 in, utilize the extruding force of interference fit, keep residence
The position and space needed.
In some specific embodiments of the present invention, in step s3, it is pressed directly into after multiple connecting portions 32 are combined interior
In pipe 20.Thus, the assembly method is simple, avoids the connected mode of complexity, and assembling is more convenient.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (13)
- A kind of 1. spray gun pipette tips, it is characterised in that including：Outer tube；Inner tube, said inner tube are located in the outer tube, and the outside wall surface of said inner tube is provided with multiple circumferentially-spaced opens distribution along its First is raised, and the described first raised only internal face to the outer tube is so that the outside wall surface of said inner tube and the inwall of the outer tube It is spaced apart between face and limits first gas passage；Central tube, the central tube are located in said inner tube, and the outside wall surface of the central tube is provided with multiple circumferentially-spaced to be opened along its The second of distribution is raised, the described second raised only internal face to said inner tube so that the outside wall surface of the central tube with it is described interior It is spaced apart between the internal face of pipe and limits second gas passage, the central tube is interference fitted with said inner tube.
- 2. spray gun pipette tips according to claim 1, it is characterised in that said inner tube is matched somebody with somebody with the outer coaxial tube and interference Close, multiple described first it is raised respectively approximately along said inner tube radially extend and uniform intervals are opened in the outer wall of said inner tube On face.
- 3. spray gun pipette tips according to claim 1, it is characterised in that the central tube and said inner tube are coaxial, Duo Gesuo State second it is raised respectively approximately along the central tube radially extend and uniform intervals are opened in the outside wall surface of the central tube.
- 4. spray gun pipette tips according to claim 1, it is characterised in that the central, tubular turns into pipe, and multiple described The two raised outside wall surfaces with the central tube are weldingly connected.
- 5. spray gun pipette tips according to claim 1, it is characterised in that the central tube includes multiple connecting portions, Duo Gesuo State circumference of the connecting portion along said inner tube and be sequentially connected and be generally formed into pipe, described the is respectively equipped with each connecting portion Two is raised.
- 6. spray gun pipette tips according to claim 5, it is characterised in that the connecting portion is formed as fanning annular or trapezoidal.
- 7. spray gun pipette tips according to claim 5, it is characterised in that the connecting portion and the described second raised one into Type.
- 8. a kind of spray gun, it is characterised in that including the spray gun pipette tips any one of claim 1-7.
- 9. a kind of processing method of spray gun pipette tips, it is characterised in that comprise the following steps：S1, processing inner tube, the outside wall surface of said inner tube is provided with multiple circumferentially-spaced opens the first raised of distribution along its；S2, the requirement of space accounting and spray gun pipette tips overall dimensions requirement machining center pipe are regarded according to spray gun pipette tips inside, it is described The outside wall surface of central tube is provided with multiple along its circumferentially-spaced the second projection for opening distribution；S3, the central tube is plugged in said inner tube and is interference fitted with said inner tube；S4, outer tube is set in said inner tube exterior it is made into the spray gun pipette tips.
- 10. the processing method of spray gun pipette tips according to claim 9, it is characterised in that described interior in the step S1 Pipe is molded using steel pipe as blank using milling or linear cutter.
- 11. the processing method of spray gun pipette tips according to claim 9, it is characterised in that in the step S2, when described Second raised thickness in the circumference of the central tube, two neighboring second projection are in the outside wall surface of the central tube When minimum clearance spaced apart reaches predetermined value, the central, tubular turns into pipe, multiple described second it is raised with it is described The outside wall surface of central tube is weldingly connected.
- 12. the processing method of spray gun pipette tips according to claim 9, it is characterised in that in the step S2, when described Second raised thickness in the circumference of the central tube, two neighboring second projection are in the outside wall surface of the central tube When minimum clearance spaced apart is respectively less than predetermined value, the central tube is made up of multiple connecting portions, and multiple connecting portions are along institute The circumference for stating inner tube is sequentially connected and is generally formed into pipe, and it is raised to be respectively equipped with described second on each connecting portion.
- 13. the processing method of spray gun pipette tips according to claim 12, it is characterised in that will be more in the step S3 It is pressed directly into after the individual connecting portion combination in said inner tube.
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| CN201710854471.2A CN107560440B (en) | 2017-09-20 | 2017-09-20 | Spray gun head, spray gun with spray gun head and processing method of spray gun head |
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| CN201710854471.2A CN107560440B (en) | 2017-09-20 | 2017-09-20 | Spray gun head, spray gun with spray gun head and processing method of spray gun head |
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| CN107560440B CN107560440B (en) | 2024-04-12 |
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| CN105849352A (en) * | 2014-01-07 | 2016-08-10 | 萃菲美股份有限公司 | Thermal lance for fusion cutting and/or piercing, comprising at least four tubular profiles and more than 17 cavities inside the lance |
| CN104152713A (en) * | 2014-08-26 | 2014-11-19 | 中国恩菲工程技术有限公司 | Side-blowing lead melting reduction device |
| CN207472061U (en) * | 2017-09-20 | 2018-06-08 | 中国恩菲工程技术有限公司 | Spray gun pipette tips and with its spray gun |
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