CN207266515U - Tin cream nozzle, workbench and automatic tin cream adding device - Google Patents
Tin cream nozzle, workbench and automatic tin cream adding device Download PDFInfo
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- CN207266515U CN207266515U CN201720986507.8U CN201720986507U CN207266515U CN 207266515 U CN207266515 U CN 207266515U CN 201720986507 U CN201720986507 U CN 201720986507U CN 207266515 U CN207266515 U CN 207266515U
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- nozzle
- tin cream
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- film
- air passage
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Abstract
This application provides the tin cream nozzle and workbench of the device for removing residual tin cream automatically, and the device.Described device includes tin cream nozzle and workbench, the workbench is used to carry tin cream nozzle, the tin cream nozzle has through nozzle hole, nozzle air passage is additionally provided with the tin cream nozzle, air-flow can blow to the film being contained in tin cream nozzle upwards so as to cause film to produce deformation by nozzle air passage, through nozzle hole is allowed airflow into, and downwards discharges remaining tin cream；The workbench includes workbench air passage, and the workbench air passage includes workbench tunnel inlet and workbench ducting outlet, and the workbench tunnel inlet is connected with gas source, and the workbench ducting outlet is connected with the nozzle air passage.It is engaged, can be removed the residual tin cream in the through hole of the lower part of nozzle after adding the tin course of work to terminate according to the workbench of the tin cream nozzle of the application and automatic tin cream adding device.
Description
Technical field
This application involves the workbench and tin cream nozzle of the automatic device for removing residual tin cream, more particularly in printed circuit
The workbench and tin cream nozzle of the automatic device for removing residual tin cream of the stencil printer used in plate surface sealing label technology.
Background technology
In printed circuit board surface sealing label technique, stencil printer (also known as stencil printer) is used to print solder paste onto
On electronic product (such as circuit board).Stencil printer generally comprises web plate (or template) plus tin cream device, scraping blade or scraper plate etc.
Mechanism.In printing, circuit board is automatically sent into stencil printer, and circuit board, which has, tin cream is deposited thereon face
Weld pad or certain other conducting surface pattern, and on circuit board have be known as datum mark one or more apertures or mark
Note, for as a reference point to first circuit board aliging with the web plate in stencil printer before circuit boards tin cream.
After circuit board aligns with the web plate in printing machine, web plate is skimmed over by mobile scraping blade or scraper plate to force solder paste through net
Hole in plate simultaneously falls on circuit boards to distribute soldering paste.After the print operation, circuit board is then sent to printed circuit board (PCB) and adds
Another work station in work production line.
Automatic tin cream adding device on stencil printer is used to canned or wound packages tin cream being automatically added to paste solder printing
On the halftone of machine, so as to replenish the tin cream being consumed in printing process.Solder paste can is usually inserted into the opening from solder paste can
Tin cream nozzle in solder paste can forms tin cream canister assembly, by the relative displacement of solder paste can and tin cream nozzle by tin cream from tin cream
Distribution (or extruding) comes out in tank.When using automatic tin cream adding device, tin cream canister assembly is installed on automatic tin cream adding first
On device so that solder paste can is opening down, the certain position (action abbreviation being then moved to tin cream canister assembly above web plate
For " positioning "), then it is assigned on web plate from solder paste can nozzle that (action is referred to as by the action such as extruding or extract by tin cream
For " adding tin ").After implementing the action such as extruding or extraction and being assigned to tin cream on web plate from solder paste can nozzle, tin cream nozzle
Near exit usually has tin cream residual.During removing tin cream is remaining, tin cream may be diffused into surrounding environment,
And after tin cream residual is removed, due to reasons such as gravity, tin cream easily further drips.
Utility model content
The purpose of the application is to provide a kind of automatic device for removing residual tin cream, it can effectively be removed automatically automatically
Add remaining tin cream in the tin cream nozzle of tin cream device.
According to the first aspect of the application, there is provided a kind of tin cream nozzle, it is characterised in that：
The tin cream nozzle has tin cream through nozzle hole, and the tin cream nozzle includes：Nozzle top, nozzle lower part and soft
Piece；
The film is arranged between the nozzle top and nozzle lower part；
Wherein, the tin cream through nozzle hole runs through the nozzle top, nozzle lower part and film, enables tin cream by nozzle
The upper end of through hole enters, and is discharged by the lower end of through nozzle hole；
It is equipped with deformation above the film between the nozzle top and/or below the film between nozzle lower part
Space；And
The nozzle lower part is equipped with least one nozzle air passage, allows the flow to blow to upwards by nozzle air passage described soft
Piece causes the film to produce deformation upwards, so as to form gas channel between the film and nozzle lower part, enables air-flow
It is enough to enter the nozzle lower through-hole via the gas channel, remaining tin cream in nozzle lower through-hole is blown out.
Tin cream nozzle as described above, it is characterised in that：
At least one nozzle air passage has nozzle ducting outlet, and the nozzle ducting outlet is arranged under the nozzle
On the top surface in portion, the film covers the nozzle ducting outlet.
Tin cream nozzle as described above, it is characterised in that：
The bottom on the nozzle top is equipped with deformation space, and the deformation space covers at least in part in the axial direction
The nozzle ducting outlet so that air-flow enables to the film to produce deformation upwards.
Tin cream nozzle as described above, it is characterised in that：
The top of the nozzle lower part is equipped with deformation space, and the deformation space is connected with least one nozzle air passage
It is logical so that air-flow enables to the film to produce deformation upwards.
Tin cream nozzle as described above, it is characterised in that：
The deformation space is the shallow grooves on the top surface of the nozzle lower part.
Tin cream nozzle as described above, it is characterised in that：
The nozzle lower part has head and afterbody, and the nozzle air passage is arranged in the head.
Tin cream nozzle as described above, it is characterised in that：
At least one nozzle air passage includes two nozzle air passages, and described two nozzle air passages are sprayed relative to the tin cream
Mouth through hole is symmetrical arranged.
Tin cream nozzle as described above, it is characterised in that：
At least one nozzle air passage is parallel with the tin cream through nozzle hole.
Tin cream nozzle as described above, it is characterised in that：
The nozzle top has head, and the head may be inserted into the solder paste can equipped with tin cream and relative to solder paste can
It is mobile, so that tin cream can enter the tin cream through hole.
Tin cream nozzle as described above, it is characterised in that：
The film is made of elastomeric material or other flexible materials.
According to the second aspect of the application, a kind of workbench of automatic tin cream adding device is also provided, it is characterised in that：
The workbench includes at least one workbench air passage, each at least one workbench air passage includes
Workbench tunnel inlet and workbench ducting outlet, the workbench tunnel inlet is connected with gas source, for that will come from gas
The air-flow in source is transported to the workbench ducting outlet.
Workbench as described above, it is characterised in that：
The workbench ducting outlet is used to provide the air-flow blowed to above the workbench.
Workbench as described above, it is characterised in that：
The workbench includes upper and lower surface, and the workbench ducting outlet is located on the upper surface.
Workbench as described above, it is characterised in that：
The workbench air passage includes first passage part and second channel part, and the first passage part connects gas
Source, the second channel part are connected with the first passage part, wherein, the second channel part is arranged to from described
One channel part upwardly extends to be formed.
Workbench as described above, it is characterised in that：
The first passage parts transversely extension.
Workbench as described above, it is characterised in that：
The workbench further includes side wall, and the workbench tunnel inlet is arranged on the side wall.
Workbench as described above, it is characterised in that：
The workbench further includes opening, and the opening extends through the upper and lower surface.
Workbench as described above, it is characterised in that：
At least one workbench air passage is two workbench air passages, and described two workbench air passages are relative to opening pair
Claim to set.
Workbench as described above, it is characterised in that：
The workbench is used to carry tin cream nozzle, and the lower end of the tin cream nozzle is inserted into the opening.
Workbench as described above, it is characterised in that：
Air-flow can be transported in the tin cream nozzle by the workbench, with by air-flow by under the tin cream nozzle
Residual tin cream in portion is removed.
According to the third aspect of the application, a kind of automatic tin cream adding device is also provided, it is characterised in that：
The automatic tin cream adding device includes：Tin cream nozzle and workbench；
The tin cream nozzle has tin cream through nozzle hole, and the tin cream nozzle includes：Nozzle top, nozzle lower part and
Film；
The film is arranged between the nozzle top and nozzle lower part；
Wherein, the tin cream through nozzle hole runs through the nozzle top, nozzle lower part and film, enables tin cream by nozzle
The upper end of through hole enters, and is discharged by the lower end of through nozzle hole；
It is equipped with deformation above the film between the nozzle top and/or below the film between nozzle lower part
Space；And
The nozzle lower part is equipped with least one nozzle air passage, allows the flow to blow to upwards by nozzle air passage described soft
Piece causes the film to produce deformation upwards, so as to form gas channel between the film and nozzle lower part, enables air-flow
It is enough to enter the nozzle lower through-hole via the gas channel, remaining tin cream in nozzle lower through-hole is blown out；
The workbench carries the tin cream nozzle, and air-flow can be transported in the nozzle air passage by the workbench,
The residual tin cream in the tin cream nozzle lower part to be removed by air-flow.
Automatic tin cream adding device as described above, it is characterised in that：
At least one nozzle air passage has nozzle tunnel inlet, the nozzle tunnel inlet and the workbench air passage
Outlet.
Automatic tin cream adding device as described above, it is characterised in that：
At least one nozzle air passage has nozzle tunnel inlet, the nozzle tunnel inlet and the workbench air passage
Outlet alignment.
It is engaged according to the workbench of the tin cream nozzle of the application and automatic tin cream adding device, the tin course of work can be being added
The residual tin cream in the through hole of the lower part of nozzle is removed after end.By the way that remaining tin cream in the lower part of tin cream nozzle is clear
Remove, be attached to the tin cream at jet hole rather than just removing, can preferably avoid the mistake in automatic tin cream adding device movement
Cheng Zhong, remaining tin cream drops onto undesirable place in tin cream nozzle.Also, due to removing residual tin using gases at high pressure
During cream, tin cream may be dispersed into small drop or powder, pollute the environment of surrounding, and gas is blown tin cream by the application
Action is limited in the space of tin cream nozzle lower through-hole, prevents droplet that tin cream is dispersed into by air-flow or powder to be diffused into week
In collarette border.
Brief description of the drawings
When being read in conjunction with the figure described further below, these and other features, aspect and the advantage of the application will become
It is best understood from, in whole attached drawing, identical reference numeral represents identical part, wherein：
Fig. 1 shows the stereogram of the automatic tin cream adding device of the application；
Fig. 2A shows the sectional view of the tin cream nozzle according to one embodiment of the application；
Fig. 2 B show the exploded view of the tin cream nozzle shown in Fig. 2A；
Fig. 3 is the stereogram on the nozzle top of the tin cream nozzle shown in Fig. 2A；
Fig. 4 A are the stereogram of the nozzle lower part of the tin cream nozzle shown in Fig. 2A；
Fig. 4 B are the partial sectional view of the nozzle lower part of the tin cream nozzle shown in Fig. 2A；
Fig. 5 is the stereogram of the film of the tin cream nozzle shown in Fig. 2A；
Fig. 6 A show the stereogram of the workbench of the automatic tin cream adding device of the application；
Fig. 6 B show the partial sectional view of the workbench of the automatic tin cream adding device of the application；
Fig. 7 shows the section view when tin cream nozzle shown in Fig. 2A is assemblied in solder paste can and assembles on the table
Figure；
Fig. 8 A show the sectional view of the tin cream nozzle according to another embodiment of the application；
Fig. 8 B show the exploded view of the tin cream nozzle shown in Fig. 8 A；
Fig. 8 C are the close-up schematic view of Fig. 8 A；
Fig. 9 is the stereogram on the nozzle top of the tin cream nozzle shown in Fig. 8 A；
Figure 10 A are the stereogram of the nozzle lower part of the tin cream nozzle shown in Fig. 8 A；
Figure 10 B are the partial sectional view of the nozzle lower part of the tin cream nozzle shown in Fig. 8 A；
Figure 11 shows the section view when tin cream nozzle shown in Fig. 8 A is assemblied in solder paste can and assembles on the table
Figure.
Embodiment
The various embodiments of the application are described below with reference to the attached drawing for forming this specification part.
Although it should be understood that in this application using the term for representing direction, such as "front", "rear", " on ", " under ", " left side ",
" right side ", " interior ", " outer " etc. describe the various example features and element of the application, but are simply using these terms herein
The purpose that convenience illustrates, it is based on the example orientations shown in attached drawing definite.Since embodiment disclosed in the present application can
To set according to different directions, so these represent that the term in direction is intended only as illustrating and should not be considered as limiting.Can
In the case of energy, identical or similar reference numeral used herein refers to identical component.
Fig. 1 shows the stereogram and exploded view of the automatic tin cream adding device 100 of the application.As shown in Figure 1, automatic tin adding
Cream device 100 includes driving device 160, support plate component 130, push rod 110, pressing plate 109 and workbench 600.Support plate component
130 are used to whole automatic tin cream adding device 100 being supported on stencil printer.Pressing plate 109 is located at the lower part of push rod 110, pushes away
Bar 110 can be driven and be moved up and down by driving device 160, so as to be moved up and down therewith with dynamic pressure plate 109.Driving device 160
It is fixed on support plate component 130, workbench 600 is also fixed on support plate component 130.Workbench 600 is used to carry
Solder paste can 107 and the tin cream nozzle 200 being contained in solder paste can 107, wherein the lower end of tin cream nozzle 200 is by workbench 600
Supported, and the upper end of tin cream nozzle 200 is inserted into inverted solder paste can 107.When performing plus tin action, pass through pressing plate 109
Moving downward to extrude the bottom of inverted solder paste can 107 so that solder paste can 107 is moved down relative to tin cream nozzle 200, from
And the tin cream for accommodate in solder paste can 107 is flowed out from the jet hole (Fig. 1 is not shown) of 200 lower end of tin cream nozzle.Due to tin cream
With certain viscosity, after tin release is added, tin cream is usually remained at the jet hole of tin cream nozzle 200.
Fig. 2A shows the sectional view of the tin cream nozzle 200 according to one embodiment of the application, and Fig. 2 B show Fig. 2A
The exploded view of shown tin cream nozzle 200.As shown in Figure 2 A and 2 B, tin cream nozzle 200 includes nozzle top 210, film 220
With nozzle lower part 230, wherein film 220 is arranged between nozzle top 210 and nozzle lower part 230, and three passes through fastener
240, such as bolt, link together.Tin cream nozzle 200 has through nozzle top 210, film 220 and nozzle lower part 230
Through hole 280, so that the tin cream in solder paste can 107 can be entered by the upper end 281 of tin cream through nozzle hole 280, by tin cream nozzle
The lower end 282 of through hole 280 is discharged, and achievees the purpose that to distribute tin cream.
Fig. 3 is the stereogram on the nozzle top 210 of the tin cream nozzle 200 shown in Fig. 2A.As shown in figure 3, on tin cream nozzle
Portion 210 has head 212, afterbody 214 and upper through-hole 216, and upper through-hole 216 is through head 212 and the extension warp of afterbody 214
Cross whole nozzle top 210.The head 212 on nozzle top 210 is generally cylindrical, the internal diameter phase of its diameter and solder paste can 107
Match (as shown in Figure 7), so that when solder paste can 107 is moved down relative to tin cream nozzle 200, accommodated in solder paste can 107
Tin cream can be flowed out by tin cream through nozzle hole 280.
As shown in Fig. 3 and Fig. 2A, deformation space 219 is equipped with the bottom of the afterbody 214 on nozzle top 210, to accommodate
The deformation (will be described below) of film 220.According to one embodiment of the application, deformation space 219 is by will be upper
The enlarged-diameter of the hypomere of portion's through hole 216 and formed.Deformation space 219 also forms one of the lower surface on nozzle top 210
Point, so that in the nozzle 200 assembled, deformation space 219 is disposed adjacent with film 220.The afterbody 214 on nozzle top 210
On be additionally provided with mounting hole 218, for receiving fastener, nozzle top 210, film 220 and nozzle lower part 230 are connected to
Together.
Fig. 4 A and Fig. 4 B are respectively the stereogram and partial sectional view of the nozzle lower part of the tin cream nozzle shown in Fig. 2A.Such as figure
Shown in 4A and Fig. 4 B, nozzle lower part 230 has head 232, afterbody 234 and lower through-hole 236, and lower through-hole 236 runs through head
Portion 232 and afterbody 234.
As shown in Figure 4 B, head 232 is equipped with two nozzle air passages 233.1 and 233.2, nozzle air passage 233.1 and 233.2
With the nozzle ducting outlet 239.1 and 239.2 on the top surface of nozzle lower part 230, so that air-flow can be distinguished
Film 220 is blowed to by nozzle air passage 233.1 and 233.2 upwards, so as to cause film 220 to produce deformation upwards.Two nozzles
Air passage 233.1 and 233.2 is symmetrical relative to lower through-hole 236, so that film 220 is subject to the air flow biasing power of equilibrium.According to
The example of the application, nozzle air passage 233 are one section of passage in nozzle lower part 230, it can be vertically arranged, and can also incline
Tiltedly set, can also be arranged on the nozzle air passage of bending, but nozzle air passage 233 needed close to one section of nozzle ducting outlet 239 to
Upper extension, so as to provide upward air-flow.Although Fig. 4 B show two nozzle air passages, the nozzle air passage of the application
It could be provided as more than two, or only one.
Still as shown in Figure 4 B, the outside diameter of the afterbody 234 of nozzle lower part 230 is set smaller than the outside diameter on head 232, so that
Nozzle lower part 230 is set to be connected in workbench 600 (as shown in Figure 7) by head 232, to limit 200 phase of tin cream nozzle
Moved down for workbench 600.It is of course also possible to tin cream nozzle is limited by way of being fixedly connected relative to workbench
600 move down.Nozzle air passage 233.1 and 233.2 extends through head 232, so that 233.1 He of nozzle air passage
233.2 nozzle tunnel inlet 237.1 and 237.2 is located in the lower surface on head 232.On the head 232 of nozzle lower part 230
Mounting hole 238 is additionally provided with, for nozzle top 210, film 220 and nozzle lower part 230 to link together by fastener.
Fig. 5 is the stereogram of the film of the tin cream nozzle shown in Fig. 2A.As shown in figure 5, film 220 has film through hole
226.As shown in Figure 2 A, the upper through-hole 216 on nozzle top 210, film through hole 226 and the lower through-hole 236 of nozzle lower part 230
Collectively form tin cream through nozzle hole 280.Film 220 is made of elastic material (such as rubber etc.), so that film 220 can be by
Power produces deformation.Mounting hole 228 is additionally provided with film 220, for by fastener by nozzle top 210, film 220 and nozzle
Lower part 230 links together.
As shown in Figure 2 A, film 220 is configured to the outlet 239 in the nozzle air passage 233 on covering nozzles lower part 230,
And the outlet for being dimensioned to be capable of covering nozzles air passage 233 at least in part in the deformation space 219 on nozzle top 210
239.Thus, when tin cream is distributed by nozzle 200, film 220 can seal nozzle air passage 233, to prevent fluid stopping through spray
The tin cream of mouth 200 enters nozzle air passage 233, and when from nozzle air passage 233 to 200 delivery air of nozzle, from nozzle air passage 233
Outlet 239 come out air-flow film 220 can be made to produce deformation upwards, between the film 220 and nozzle lower part 230
Gas channel is formed, allows the flow to enter in the nozzle lower through-hole 236 by the gas channel, so that by under nozzle
Remaining tin cream blowout in portion's through hole 236.
Fig. 6 A and 6B respectively illustrate the stereogram and partial sectional view of the workbench of the automatic tin cream adding device of the application.
As shown in Figure 6 A and 6 B, workbench 600 is equipped with opening 603 and workbench air passage 610.1 and 610.2, and opening 603 is used to accommodate
The afterbody 234 of nozzle lower part 230, air passage 610.1 and 610.2 are used for the gas in gas source (not shown) towards nozzle lower part
230 nozzle air passage 233 guides, to cut remaining tin cream in (or removing) nozzle lower part 230 by air-flow.
According to one embodiment of the application, two nozzle air passages 233.1 and 233.2 are equipped with nozzle lower part 230, are worked
Also two workbench air passages 610.1 and 610.2 are correspondingly provided with platform 600.As shown in Figure 6B, two workbench air passages 610.1
With the both sides of 610.2 openings 603 for being separately positioned on workbench 600 so as to nozzle air passage 233.1 and 233.2 guide
During air-flow, 220 stress balance of film can be made.Two workbench air passages 610.1 and 610.2 include workbench tunnel inlet respectively
608.1,608.2 and workbench ducting outlet 609.1,609.2.Ducting outlet 609.1 and 609.2 is arranged on workbench 600
On upper surface 641, for providing air-flow to nozzle air passage 233.1 and 233.2.As shown in Fig. 4 B and Fig. 6 B, when nozzle 200 is installed
When in workbench 600, workbench ducting outlet 609.1 and 609.2 aligns with nozzle tunnel inlet 237.1 and 237.2, will
Workbench air passage 610.1 and 610.2 is respectively communicated with nozzle air passage 233.1 and 233.2.Workbench tunnel inlet 608.1
It is separately positioned on 608.2 on the outer wall of workbench, easy to be connected with extraneous gas source.In above-described embodiment of application,
Workbench air passage is two.However, workbench air passage can also be other numbers, as long as matching i.e. with the number in nozzle air passage
Can.
Workbench 600 has upper surface 641 and lower surface 642, and opening 603 is prolonged through upper surface 641 and lower surface 642
Stretch, although in the above-described embodiments, the opening 303 of workbench 600 is to be recessed inwardly from the side of workbench and form U-type groove,
But opening 303 can also be through the through hole by workbench 600.
As shown in Figure 6B, the concrete structure in workbench air passage is introduced by taking workbench air passage 610.2 as an example, another work
Typhoon road 610.1 is similar to 610.1 structure of workbench air passage.Workbench air passage 610.2 includes the first air passage portion 625.2 and the
Two air passage portions 626.2, the first air passage portion 625.2 connect gas source, the second air passage portion by workbench tunnel inlet 608.2
Divide the 626.2 corresponding nozzle tunnel inlets 237.2 of connection.According to an example, the first air passage portion 625.2 generally laterally prolongs
Stretch, the second air passage portion 626.2 is from the vertically extending formation upwards of the first air passage portion 625.2.Certainly, the second air passage portion and
The extending direction of one air passage portion may be set to be other forms, as long as air-flow can be sent to the outlet in workbench air passage
609.1 with 609.2.
As an example, tunnel inlet 608.1 and 608.2 is arranged on the side wall 643 of workbench, in other embodiments
In, tunnel inlet 608.1 and 608.2 may also be arranged on other positions of workbench, as long as can be connected with gas source.
Fig. 7 shows that the tin cream nozzle 200 shown in Fig. 2A is assemblied in solder paste can and is assemblied in shown in Fig. 6 A and 6B
Sectional view when on workbench 600.Illustrate that the tin cream nozzle of the application coordinates with workbench with reference to Fig. 7 to spray to remove tin cream
The process of tin cream is remained in mouth.
As shown in fig. 7, in the upper end insertion solder paste can 107 of the tin cream nozzle 200 assembled, the lower end of tin cream nozzle 200
It is assemblied in workbench 600, to carry tin cream nozzle 200 and solder paste can 107 by workbench 600.Filled by tin cream nozzle 200
When entering to accommodate in the solder paste can 107 of tin cream, the capping of the tank mouth 171 (as shown in Figure 7) of solder paste can 107 is taken off first,
Then the nozzle top 210 of tin cream nozzle is inserted into solder paste can 107 from the tank mouth 171 of solder paste can 107.The tank of solder paste can 107
Near mouth 171 and tin cream is underfilled with, so as to leave installation space for tin cream nozzle 200.
During tin is added, when pressing down on solder paste can 107, solder paste can 107 is squeezed and relative to tin cream nozzle
200 move down, since 212 internal diameter of head and the solder paste can 107 on tin cream nozzle top 210 match so that in solder paste can 107
Tin cream above the head 210 of tin cream nozzle 200 is squeezed into tin cream through nozzle hole 280 and is discharged from.In extruding tin
During cream tank 107, due to having the tin cream that flows downward in 200 through hole 280 of tin cream nozzle, tin cream flow downward so that
220 stress of film is close to downwards the top surface of nozzle lower part 106.Since film 220 is configured to covering nozzles lower part 230
On nozzle air passage 233.1 and 233.2 nozzle ducting outlet 239.1 and 239.2, tin cream cannot be into when flowing through film 220
Between the upper surface for entering film 220 and nozzle lower part 230, so that tin cream cannot enter in nozzle air passage.
After the completion of tin is added, start extraneous gas source, air-flow is flowed through workbench air passage 610.1 and 610.2 and nozzle
Air passage 233.1 and 233.2 and blow to film 220.Due to nozzle top 210 deformation space 219 be dimensioned to can be extremely
The partially nozzle ducting outlet 239.1 and 239.2 in covering nozzles air passage 233.1 and 233.2, thus, from nozzle air passage
The air-flow that 233.1 and 233.2 conveying of nozzle ducting outlet 239.1 and 239.2 comes can make film 220 produce deformation upwards.
Film 220 produces deformation and to form gas channel between film 220 and the top surface of nozzle lower part 230 upwards, and air-flow can
To be entered by the gas channel in nozzle lower through-hole 236, so that remaining tin cream in nozzle lower through-hole 236 be blown out.
According to the application, gas source can be connected directly with nozzle air passage, to provide gas to nozzle air passage.But pass through
Air passage is set on the table, and gas source is sent into nozzle air passage via workbench air passage, can replacing tin cream spray
Gas source need not be reconnected during mouth.Due to the high frequency of replacement of tin cream nozzle, by setting workbench air passage, can save
Process, and the operation for the operating personnel that are more convenient for.
Wherein gas source can be compressed gas, to improve the flow velocity of gas, so as to be conducive to make stream pressure bigger.
Fig. 8 A show the sectional view of the tin cream nozzle according to another embodiment of the application, and Fig. 8 B show Fig. 8 A institutes
The exploded view of the tin cream nozzle shown, Fig. 8 C are the close-up schematic view of C portion in Fig. 8 A.
The tin cream nozzle 800 shown in Fig. 8 A is similar with the tin cream nozzle 200 in Fig. 2A, also including nozzle top 810, soft
Piece 820 and nozzle lower part 830, film 820 are arranged between nozzle top 810 and nozzle lower part 830, and tin cream leads to from tin cream nozzle
The upper end 881 in hole 880 enters, then is discharged from the lower end 882 of tin cream through nozzle hole 880.Unlike, in the implementation shown in Fig. 8 A
In example, deformation space 819 is arranged in nozzle lower part 830 (see Fig. 8 C), and in the embodiment shown in Fig. 2A, deformation space
219 are arranged in nozzle top 210.
Fig. 9 is the stereogram on the nozzle top of the tin cream nozzle shown in Fig. 8 A.As shown in figure 9, nozzle top 810 and nozzle
200 210 structure of top is similar, has head 812 and afterbody 814, and sets upper through-hole 816 and mounting hole 818, but sprays
The lower surface on mouth top 810 is not provided with deformation space.
Figure 10 A and 10B are respectively the stereogram and sectional view of the nozzle lower part of the tin cream nozzle shown in Fig. 8 A.Such as Figure 10 A
Shown in 10B, nozzle lower part 830 is similar to the structure of the lower part 230 of nozzle 200, equipped with lower through-hole 836 and nozzle air passage
833.1 and 833.2.But nozzle lower part 830 is additionally provided with the deformation space 819 at the top of it, deformation space 819 and nozzle wind
Road 833.1 is connected with 833.2.As an example, deformation space 819 for nozzle lower part 830 top surface to lower recess
And the long and narrow shallow grooves formed, deformation space 819 extend past lower through-hole 836, and its width be arranged to generally with
Nozzle air passage 833.1 is identical with 833.2 diameter, its length is configured to be covered (such as Fig. 8 B) by film 820.
Figure 11 shows the section view when tin cream nozzle shown in Fig. 8 A is assemblied in solder paste can and assembles on the table
Figure.Tin cream nozzle 800 shown in Fig. 8 A can also be engaged to remove tin cream nozzle with the workbench 600 shown in Fig. 6 A and 6B
Remaining tin cream in 800.Coordinate with reference to the tin cream nozzle 800 shown in Figure 11 explanatory drawins 8A and workbench 600 to remove tin
The process of tin cream is remained in cream nozzle.
As shown in figure 11, in the upper end insertion solder paste can 107 of the tin cream nozzle 800 assembled, the lower end of tin cream nozzle 820
It is assemblied in workbench 600, to carry tin cream nozzle 800 and solder paste can 107 by workbench 600.During tin is added, when to
During lower pressing solder paste can 107, solder paste can 107 is squeezed and is moved down relative to tin cream nozzle 800 so that solder paste can 107
In tin cream positioned at the head 810 of tin cream nozzle 800 top be squeezed into tin cream through nozzle hole 880 and be discharged from.Extruding
During solder paste can 107, due to having the tin cream to flow downward in the through hole 880 of tin cream nozzle 800, tin cream flows downward
So that 820 stress of film is close to downwards the top surface of nozzle lower part 106, and film 820 towards deformation space 819 produce to
Under deformation and enter in deformation space 819 so that tin cream cannot enter deformation space 819 flowing through tin cream through nozzle hole 880
And in nozzle air passage.
After the completion of tin is added, start extraneous gas source, air-flow is flowed through workbench air passage 610.1 and 610.2 and nozzle
Air passage 833.1 and 833.2 and blow to film 820.From the outlet 839.1 and 839.2 in nozzle air passage 833.1 and 833.2, conveying comes
The film 820 that will can enter in deformation space 819 of air-flow push up so that the film for producing downward deformation produces upwards again
Deformation and restore to the original state.At this time, deformation space 819 forms the gas channel between film 820 and nozzle lower part 830, air-flow
It can be entered by the gas channel in nozzle lower through-hole 836, so that remaining tin cream in nozzle lower through-hole 836 be blown
Go out.
It is engaged according to the workbench of the tin cream nozzle of the application and automatic tin cream adding device, the tin course of work can be being added
The residual tin cream in the through hole of the lower part of nozzle is removed after end.With only passing through gas outside the jet hole of tin cream nozzle
Stream blows off the tin cream being attached at jet hole and compares, and the application can remove remaining tin cream in the lower part of tin cream nozzle, so that
Prevent that remaining tin cream continues to flow downward out tin cream nozzle in the lower part of tin cream nozzle.Since tin cream has larger viscosity,
After the completion of adding tin process, more tin cream is remained toward contact in tin cream nozzle.By will be remaining in the lower part of tin cream nozzle
Tin cream is removed, and the tin cream at jet hole is attached to rather than just removing, can preferably avoid moving in automatic tin cream adding device
In dynamic process, remaining tin cream drops onto undesirable place in tin cream nozzle.Also, due to being removed using gases at high pressure
During remaining tin cream, tin cream may be dispersed into small drop or powder, pollute the environment of surrounding, and the application is by gas
Blow tin cream action to be limited in the space of tin cream nozzle lower through-hole, prevent droplet or powder expansion that tin cream is dispersed into by air-flow
It is scattered in surrounding environment.
This specification uses examples to disclose the application, and one or more of examples are illustrated in attached drawing.Each
Example is provided to explanation the application and provides, rather than in order to limit the application.In fact, for those skilled in the art and
Speech it is readily apparent that the application be able to can be carried out in the case of not departing from scope of the present application or spirit various modifications and
Modification.For example, diagram or description the feature as the part of one embodiment can be used together with another embodiment,
To obtain further embodiment.Therefore, it is intended that the application and covers model in the appended claims and its equivalent
Enclose the modifications and variations of interior progress.
Claims (24)
- A kind of 1. tin cream nozzle (200,800), it is characterised in that：The tin cream nozzle (200,800) has tin cream through nozzle hole (280,880), and the tin cream nozzle (200,800) includes： Nozzle top (210,810), nozzle lower part (230,830) and film (220,820)；The film (220,820) is arranged between the nozzle top (210,810) and nozzle lower part (230,830)；Wherein, the tin cream through nozzle hole (280,880) is through the nozzle top (210,810), nozzle lower part (230,830) With film (220,820), enable tin cream by through nozzle hole upper end (281,881) enter, by through nozzle hole lower end (282, 882) discharge；The film (220,820) is above between the nozzle top (210,810) and/or under the film (220,820) Deformation space (219,819) are equipped between face and nozzle lower part (230,830)；AndThe nozzle lower part (230,830) is equipped with least one nozzle air passage (233,833), allows the flow to by nozzle air passage (233,833) blow to the film (220,820) and cause the film (220,820) to produce deformation upwards upwards, so that in institute State and form gas channel between film (220,820) and nozzle lower part (230,830), allow the flow to via the gas channel Into the nozzle lower through-hole (236,836), remaining tin cream in nozzle lower through-hole (236,836) is blown out.
- 2. tin cream nozzle according to claim 1, it is characterised in that：At least one nozzle air passage (233) has nozzle ducting outlet (239), and the nozzle ducting outlet (239) is set On the top surface of the nozzle lower part, the film (220,820) covers the nozzle ducting outlet (239).
- 3. tin cream nozzle according to claim 2, it is characterised in that：The bottom on the nozzle top is equipped with deformation space (219), the deformation space (219) in the axial direction at least partly Ground covers the nozzle ducting outlet (239) so that air-flow enables to the film (220) to produce deformation upwards.
- 4. tin cream nozzle according to claim 2, it is characterised in that：The top of the nozzle lower part is equipped with deformation space (819), the deformation space (819) and at least one nozzle wind Road (233) is connected so that air-flow enables to the film (220) to produce deformation upwards.
- 5. tin cream nozzle according to claim 4, it is characterised in that：The deformation space (819) is the shallow grooves on the top surface of the nozzle lower part.
- 6. tin cream nozzle according to claim 1, it is characterised in that：The nozzle lower part (230,830) has head (232,832) and an afterbody (234,834), the nozzle air passage (233, 833) it is arranged in the head (232,832).
- 7. tin cream nozzle according to claim 1, it is characterised in that：At least one nozzle air passage (233,833) includes two nozzle air passages, and described two nozzle air passages are relative to described Tin cream through nozzle hole (280,880) is symmetrical arranged.
- 8. tin cream nozzle according to claim 1, it is characterised in that：At least one nozzle air passage (233,833) is parallel with the tin cream through nozzle hole (280,880).
- 9. tin cream nozzle according to claim 1, it is characterised in that：The nozzle top (210,810) has head (212,812), and the head (212,812) may be inserted into equipped with tin cream Solder paste can in and move relative to solder paste can so that tin cream can enter the tin cream through hole.
- 10. tin cream nozzle according to claim 1, it is characterised in that：The film (220,820) is made of elastomeric material or other flexible materials.
- A kind of 11. workbench of automatic tin cream adding device, it is characterised in that：The workbench (600) includes at least one workbench air passage (610), at least one workbench air passage (610) Each include workbench tunnel inlet (608) and workbench ducting outlet (609), the workbench tunnel inlet (608) Connected with gas source, for the air-flow from gas source to be transported to the workbench ducting outlet (609).
- 12. workbench according to claim 11, it is characterised in that：The workbench ducting outlet (609) blows to the air-flow above the workbench (600) for offer.
- 13. workbench according to claim 11, it is characterised in that：The workbench air passage (610) is used for the nozzle air passage for the tin cream nozzle (200,800) being contained in the workbench (233,833) air-flow is provided.
- 14. workbench according to claim 11, it is characterised in that：The workbench (600) includes upper surface (641) and lower surface (642), and the workbench ducting outlet (609) is located at institute State on upper surface (641).
- 15. workbench according to claim 14, it is characterised in that：The workbench air passage (610) includes first passage part (625) and second channel part (626), the first passage Partly (625) connection gas source, the second channel part (626) are connected with the first passage part (625), wherein, institute Second channel part (626) is stated to be arranged to upwardly extend to be formed from the first passage part (625).
- 16. workbench according to claim 15, it is characterised in that：The first passage part (625) extends laterally.
- 17. workbench according to claim 14, it is characterised in that：The workbench (600) further includes side wall (643), and the workbench tunnel inlet (608) is arranged on the side wall (643) On.
- 18. workbench according to claim 14, it is characterised in that：The workbench (600) further includes opening (603), and the opening is prolonged through the upper surface (641) and lower surface (642) Stretch.
- 19. workbench according to claim 18, it is characterised in that：At least one workbench air passage (610) is two workbench air passages (610.1,610.2), described two work typhoons Road (610.1,610.2) is symmetrical arranged relative to opening (603).
- 20. workbench according to claim 18, it is characterised in that：The workbench (600) is used to carry tin cream nozzle (200,800), the lower end insertion of the tin cream nozzle (200,800) In the opening (603).
- 21. workbench according to claim 20, it is characterised in that：Air-flow can be transported in the tin cream nozzle (200,800) by the workbench (600), with by air-flow by the tin Residual tin cream in cream nozzle (200,800) lower part is removed.
- 22. a kind of automatic tin cream adding device, it is characterised in that the automatic tin cream adding device includes：Tin cream nozzle (200,800) With workbench (600)；The tin cream nozzle (200,800) has tin cream through nozzle hole (280,880), and the tin cream nozzle (200,800) includes： Nozzle top (210,810), nozzle lower part (230,830) and film (220,820)；The film (220,820) is arranged between the nozzle top (210,810) and nozzle lower part (230,830)；Wherein, the tin cream through nozzle hole (280,880) is through the nozzle top (210,810), nozzle lower part (230,830) With film (220,820), enable tin cream by through nozzle hole upper end (281,881) enter, by through nozzle hole lower end (282, 882) discharge；The film (220,820) is above between the nozzle top (210,810) and/or under the film (220,820) Deformation space (219,819) are equipped between face and nozzle lower part (230,830)；AndThe nozzle lower part (230,830) is equipped with least one nozzle air passage (233,833), allows the flow to by nozzle air passage (233,833) blow to the film (220,820) and cause the film (220,820) to produce deformation upwards upwards, so that in institute State and form gas channel between film (220,820) and nozzle lower part (230,830), allow the flow to via the gas channel Into the nozzle lower through-hole (236,836), remaining tin cream in nozzle lower through-hole (236,836) is blown out；The workbench (600) carries the tin cream nozzle, and air-flow can be transported to the nozzle wind by the workbench (600) In road (233,833), the residual tin cream in tin cream nozzle (200, the 800) lower part to be removed by air-flow.
- 23. automatic tin cream adding device according to claim 22, it is characterised in that：At least one nozzle air passage (233) has nozzle tunnel inlet (237), the nozzle tunnel inlet (237) and institute State workbench ducting outlet (609) connection.
- 24. automatic tin cream adding device according to claim 22, it is characterised in that：At least one nozzle air passage (233) has nozzle tunnel inlet (237), the nozzle tunnel inlet (237) and institute State workbench ducting outlet (609) alignment.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986507.8U CN207266515U (en) | 2017-08-08 | 2017-08-08 | Tin cream nozzle, workbench and automatic tin cream adding device |
| TW107125124A TWI748116B (en) | 2017-08-08 | 2018-07-20 | Tin paste nozzle, work-bench and tin paste feeding apparatus |
| PCT/US2018/045308 WO2019032418A2 (en) | 2017-08-08 | 2018-08-06 | Tin paste nozzle, work-bench and tin paste feeding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986507.8U CN207266515U (en) | 2017-08-08 | 2017-08-08 | Tin cream nozzle, workbench and automatic tin cream adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207266515U true CN207266515U (en) | 2018-04-20 |
Family
ID=61924637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720986507.8U Withdrawn - After Issue CN207266515U (en) | 2017-08-08 | 2017-08-08 | Tin cream nozzle, workbench and automatic tin cream adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207266515U (en) |
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| CN109392299A (en) * | 2017-08-08 | 2019-02-26 | 伊利诺斯工具制品有限公司 | Tin cream nozzle, workbench and automatic tin cream adding device |
| WO2020252099A1 (en) * | 2019-06-13 | 2020-12-17 | Illinois Tool Works Inc. | Method and system for automated changeover and replacement within a stencil printer |
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