CN108738246A - Device for removing residual tin cream automatically - Google Patents
Device for removing residual tin cream automatically Download PDFInfo
- Publication number
- CN108738246A CN108738246A CN201710245207.9A CN201710245207A CN108738246A CN 108738246 A CN108738246 A CN 108738246A CN 201710245207 A CN201710245207 A CN 201710245207A CN 108738246 A CN108738246 A CN 108738246A
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- China
- Prior art keywords
- tin cream
- gas
- solder paste
- workbench
- hole
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The present invention provides the devices for removing residual tin cream automatically, including：Workbench, the workbench accommodate tin cream nozzle for carrying solder paste can, solder paste can, and there is the tin cream nozzle tin cream jet hole, the workbench to have tin cream through-hole, and the tin cream through-hole is for accommodating tin cream jet hole；Gas passage in the workbench is set, the gas passage includes gas access and gas vent, the gas access is connected to purge gas source, the gas vent is configured as blowing to gas into the tin cream jet hole being contained in tin cream through-hole, to cut remaining tin cream at tin cream jet hole.
Description
Technical field
The device of residual tin cream is removed the present invention relates to automatic, more particularly to is made in printed circuit board surface sealing label technology
The automatic device for removing residual tin cream of stencil printer.
Background technology
In printed circuit board surface sealing label technique, stencil printer (also known as stencil printer) is for printing 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, so that tin cream is deposited thereon face
Weld pad or certain other conducting surface pattern, and there are the one or more apertures or mark of referred to as datum mark on circuit board
Note, for as a reference point to being first aligned circuit board with the web plate in stencil printer before circuit boards tin cream.
After circuit board is aligned with the web plate in printing machine, web plate is skimmed over to force solder paste through net by mobile scraping blade or scraper plate
Hole in plate simultaneously falls and distributes soldering paste on circuit boards.After the print operation, circuit board is then sent to printed circuit board 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, to replenish the tin cream being consumed in printing process.Solder paste can is usually inserted into from the opening of solder paste can
Tin cream nozzle in solder paste can constitutes 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 mounted on automatic tin cream adding first
On device so that solder paste can is opening down, and tin cream canister assembly is then moved to the certain position above web plate, and (action is referred to as
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 squeezing or extract by tin cream
For " adding tin ").Positioning and add tin the two actions usually respectively by two independent driving parts (such as push rod cylinder, rotation
Cylinder, motor etc.) it is driven.There are two the mechanical structures that the automatic tin cream adding device of driving part makes stencil printer for tool
It is complicated with control system, and occupied space is larger, it is with high costs.
In addition, implementing the action such as to squeeze or extract by tin cream after being assigned on web plate in solder paste can nozzle, tin cream
Jet hole usually has tin cream residual.For this purpose, in existing automatic tin cream adding device, usually increase near tin cream jet hole
The pallet of one residual tin cream for receiving drippage, then carries out periodic cleaning to pallet.Due to need operating personnel to pallet into
Row cleaning, therefore personnel's maintenance cost is caused to increase.
Invention content
The object of the present invention is to provide the device that a kind of automatic removing remains tin cream, can with it is lower cost-effectively
Remaining tin cream at the automatic tin cream jet hole for removing automatic tin cream adding device.
Device according to the present invention for removing residual tin cream automatically, including：Workbench, the workbench is for carrying
Solder paste can, solder paste can accommodate tin cream nozzle, and there is the tin cream nozzle tin cream jet hole, the workbench to have tin cream through-hole,
The tin cream through-hole is for accommodating tin cream jet hole；Gas passage in the workbench is set, and the gas passage includes
Gas access and gas vent, the gas access are connected to purge gas source, and the gas vent is configured as blowing gas
To the tin cream jet hole being contained in tin cream through-hole, to cut remaining tin cream at tin cream jet hole.
According to the above-mentioned automatic device for removing residual tin cream, the gas passage includes that first passage part and second are logical
Road part, first passage part connect the purge gas source, and second channel part connects the gas vent, and described second is logical
Road part is thinner than first passage part so that the flowing gas in first passage part is accelerated in second channel part.
According to the above-mentioned automatic device for removing residual tin cream, the gas vent is in flat, so that going out from gas
The cutting gas of mouth outflow is sharper.
According to the above-mentioned automatic device for removing residual tin cream, the gas is compressed gas.
According to the above-mentioned automatic device for removing residual tin cream, the workbench includes that the first thicker portion and second are relatively thin
Part, the bottom surface of second thinner part are higher than the bottom surface of the first thicker portion, to formed on the first thicker portion with
The step surface that the bottom surface of second thinner part is connected；Wherein, the tin cream through-hole extends through second thinner
Point, the gas vent is arranged in the step surface
According to the above-mentioned automatic device for removing residual tin cream, the gas vent is adjacent with the tin cream through-hole.
According to the above-mentioned automatic device for removing residual tin cream, the gas passage is arranged in first thicker portion
In.
According to the above-mentioned automatic device for removing residual tin cream, the workbench is fixedly attached to support device of work level
One end.
According to the above-mentioned automatic device for removing residual tin cream, the solder paste can includes shell, described in the shell receiving
Tin cream nozzle, the shell can be moved relative to tin cream nozzle, and the solder paste can is held with being squeezed by the tin cream nozzle
Be loaded on the workbench, the shell of the solder paste can by pressing plate moved up and down above solder paste can is extruded relative to
Tin cream nozzle moves, so that tin cream can be squeezed out from solder paste can.
According to the above-mentioned automatic device for removing residual tin cream, the device of the automatic removing residual tin cream is configured as
Pressing plate stops that gas is blowed to the tin cream jet hole being contained in tin cream through-hole by the gas vent after extruding solder paste can,
To cut remaining tin cream at tin cream jet hole.
The automatic device for removing residual tin cream of the present invention can be completed in automatic tin cream adding device plus the course of work of tin
The remaining tin cream of tin cream jet hole is cut using air knife automatically afterwards, so as to automatic with lower cost-effectively automatic removing
Add remaining tin cream at the tin cream jet hole of tin cream device, and no longer needs manual operation to remove residual tin cream.
Description of the drawings
When following detailed description is read in conjunction with the figure, these and other features, aspect and advantage of the invention will become
It is best understood from, throughout the drawings, identical reference numeral represents identical part, wherein：
Figure 1A and 1B respectively illustrates the stereogram and exploded view of the automatic tin cream adding device of the present invention；
Fig. 2A and 2B respectively illustrates the inner side and outer side stereogram of the movable plate of the present invention；
Fig. 3 A and 3B respectively illustrate the inner side and outer side stereogram of the pressing plate of the present invention；
Fig. 4 shows the sectional view of the line A-A along Figure 1A；
Fig. 5 shows a work period of the automatic tin cream adding device of the present invention；
Fig. 6 shows the stereogram of the retainer and height adjustment device of the present invention；
Fig. 7 A and Fig. 7 B respectively illustrate the top perspective view and bottom perspective view of the solder paste can of the present invention；
Fig. 8 A show the sectional view of tin cream canister assembly of the present invention；
Fig. 8 B show the stereogram of the nozzle in tin cream canister assembly of the present invention；
Fig. 8 C show sectional view of the present invention for tin component (solder paste can holding component)；
Fig. 9 A show the stereogram of the workbench of the present invention；
Fig. 9 B are the phantoms at Fig. 1 workbench, and it illustrates the gas passages and tin cream through-hole in workbench.
Specific implementation mode
The various specific implementation modes of the present invention are described below with reference to the attached drawing for constituting this specification part.
Although it should be understood that be used in the present invention indicate direction term, such as "front", "rear", "upper", "lower", " left side ",
The various example features and element of the description such as " right side ", "inner", the "outside" present invention, but it is to be to use these terms herein
Facilitate the purpose of explanation, based on the example orientations shown in attached drawing determination.Since disclosed embodiment of this invention can
To be arranged according to different directions, so these indicate that the term in direction is intended only as illustrating and should not be considered as limiting.Can
In the case of energy, the identical or similar reference numeral used in the present invention refers to identical component.
Figure 1A and 1B respectively illustrates the stereogram and exploded view of the automatic tin cream adding device 100 of the present invention.Such as Figure 1A and
Shown in 1B, automatic tin cream adding device 100 includes support plate 130, push rod 110, pressing plate 120, movable plate 140 and workbench 150.Branch
Fagging 130 is mounted on stencil printer, is used to support automatic tin cream adding device 100.Pressing plate 120 is located at the end of push rod 110,
Push rod 110 can be driven by driving device 160 and be moved up and down, to be moved up and down therewith with dynamic pressure plate 120.Relative to push rod
110 move up and down, and support plate 130 is relatively-stationary.Workbench 150 is fixed on movable plate in the inside of movable plate 140 141
On 140, such as it is fixed on the lower end 143 of movable plate 140.The outside 145 of movable plate 140, which can slide up and down to, to be arranged in support plate
On 130, to which movable plate 140 can be slided up and down relative to support plate 130,150 raising and lowering of workbench is thus driven.When
When movable plate 140 slides down to lower dead center, movable plate 140 reaches its operating position.Workbench 150 is for carrying solder paste can
700 and the tin cream nozzle 500 that is contained in solder paste can 700, when movable plate 140 reaches its operating position, under workbench 150
At height needed for dropping to above the web plate (the L lines being shown in FIG. 5) of printing machine, realize in the height direction to solder paste can
700 positioning.Pressing plate 120, which can slide up and down to, to be arranged on the inside of movable plate 140 141.
The driving device 160 of push rod 110 can be cylinder or motor etc., as support plate 130, driving device 160
It may be mounted on stencil printer, can also be mounted in support plate 130, so that driving device 160 and support plate 130
Position keeps being relatively fixed.Installation of the driving device 160 in support plate 130 can be realized by being transversely mounted plate 170, lateral
Mounting plate 170 is equipped with the hole 172 extended through for push rod 110.
Still as shown in Figure 1A and 1B, between movable plate 140 and support plate 130 be equipped with lower part single direction locking mechanism (144,
134).Lower part single direction locking mechanism (144,134) defines the lower dead center that movable plate 140 moves up and down, and exists in movable plate 140
Movable plate 140 is locked when operating position, so that movable plate 140 cannot continue to move down.And movable plate 140 and pressing plate
Top locking mechanism (142,122) is equipped between 120, top locking mechanism (142,122) is configured such that the pressing plate
(120) can be mobile relative to movable plate (140) in the case where the movable plate (140) are not moved, it also can be in movable plate
(140) jointly mobile with movable plate (22) when mobile.More specifically, top locking mechanism (142,122) is configured as：So that
Pressing plate 120 can drive movable plate 140 jointly mobile movable plate 140 is moved to operating position or moves away from working position
It sets, and pressing plate 120 is moved up and down when movable plate 140 is locked in operating position relative to movable plate 140.It is logical
It crosses and the top locking mechanism (142,122) and lower part single direction locking mechanism (144,134) is set, a driving is only used only and fills
It sets 160 and can be realized as the location action that tin cream canister assembly is moved to desired height above web plate, and by tin cream from tin cream
The action of on web plate plus tin is assigned in tank nozzle.
Top locking mechanism (142,122) and lower part single direction locking mechanism is discussed in detail with reference to Fig. 2A, 2B, 3A and 3B
(144,134)。
Fig. 2A and 2B respectively illustrates the inner side and outer side stereogram of the movable plate 140 of the present invention.Referring to Figure 1A, 1B, 2A
And 2B, lower part single direction locking mechanism (144,134) include blocking flange 134 and the setting being arranged in the lower end of support plate 130 131
Flange 144 of being obstructed in the outside of movable plate 140 145, the blocking flange 134 are located at the lower section of the flange 144 of being obstructed, and
With the part Chong Die with the formation of flange 144 of being obstructed.As a result, when movable plate 140 is moved down into relative to support plate 130
Movable plate 140 be obstructed flange 144 against support plate 130 blocking flange 134 when, support plate 130 prevent movable plate 140 continue
It moves down, to which movable plate 140 is locked in operating position.
As an example, blocking flange 134 and flange 144 of being obstructed are respectively by outside from support plate 130 and movable plate 140
The protruding portion extended is formed.Flange of being obstructed 144 can be arranged at the middle part or upper end in the outside of movable plate 140 145, be obstructed
Position of the flange 144 on the outside of movable plate 140 145 depends on the lifting distance of scheduled workbench 150.
Fig. 3 A and 3B respectively illustrate the inner side and outer side stereogram of the pressing plate 120 of the present invention.Referring to Figure 1A, 1B, 3A and
3B, top locking mechanism (142,122) include the trailing edge 122 being arranged on pressing plate 120 and are arranged in movable plate 140
Stress flange 142 on side 141, the trailing edge 122 are located at the lower section of the stress flange 142, and with it is described by
Power flange 142 forms the part of overlapping.The traction side of pressing plate 120 is resisted against by the stress flange 142 of movable plate 140 as a result,
On edge 122 so that movable plate 140 can be controlled relative to downwardly and upwardly moving for support plate 130 by the movement of pressing plate 120
System.Also, when movable plate 140 is locked in its operating position by lower part single direction locking mechanism (144,134), pressing plate 120 after
Continuous move down can make its trailing edge 122 be detached from the stress flange 142 of movable plate 140, to discharge movable plate 140.It
Afterwards, pressing plate 120 can be moved down relative to movable plate 140, to press solder paste can 700, execute the course of work for adding tin.
Specifically, when push rod 110 is also not driven the driving of device 160 and moves down, pressing plate 120 is by push rod 110
It is fixed on its initial position.At this point, the stress flange 142 due to movable plate 140 is resisted against on the trailing edge 122 of pressing plate 120,
So that movable plate 140 is fixed by pressing plate 120.Only when driving device 160, which starts driving push rod 110, to be moved down, move
Movable plate 140 could downwardly together be moved with pressing plate 120, until reaching its operating position.In movable plate 140 by lower part one-way lock
When determining mechanism (144,134) and being locked in its operating position, pressing plate 120 can be moved down relative to movable plate 140, to execute plus
The course of work of tin.After the course of work for adding tin terminates, when needing movable plate 140 moving away its operating position,
By the way that pressing plate 120 is moved upwards up to its trailing edge 122 against the stress flange 142 of movable plate 140, pressing plate 120 can be used
Movable plate 140 is driven to move up.
As an example, the stress flange 142 is from 140 outwardly extending protruding portion of movable plate by forming, and described
Trailing edge 122 is the inside edge of pressing plate 120.The upper end in the inside of movable plate 140 141 can be arranged in stress flange 142.
As shown in Figure 1B, support plate 130 has the first sliding groove 136 extended between end 132 and lower end 131 on it.Such as
Shown in Fig. 2 B, movable plate 140 is with the first sliding block 146 in setting on the outside 145.First sliding block 146 and first is slided
Slot 136, which is matched, to be connected to that can slide up and down to movable plate 140 in support plate 130.As an example, the first sliding block
146 and the cross section of the first sliding groove 136 be trapezoidal, and their size matches, so that the first sliding block 146 can be from
136 upper and lower ends of the first sliding groove be inserted into the first sliding groove 136 in, and can be slided up and down along the first sliding groove 136 without
It is loosened from the first sliding groove 136 on the direction of the first sliding groove 136.
As shown in Figure 2 A, there is the second sliding slot 147 extended between end and lower end on it on 140 inside 141 of movable plate.
As shown in Figure 3B, pressing plate 120 has the second sliding block 127 on its trailing edge 122.Second sliding block 127 and second is slided
Slot 147, which is matched, to be connected to that can slide up and down to pressing plate 120 on the inside 141 of movable plate 140.As an example,
The cross section of two sliding blocks 127 and second sliding slot 147 is trapezoidal, and their size matches, so that the second sliding block 127
Can from 147 upper and lower ends of second sliding slot be inserted into second sliding slot 147 in, and can be slided up and down along second sliding slot 147 and
It will not be loosened from second sliding slot 147 on the direction of second sliding slot 147.
Fig. 4 shows the sectional view of the line A-A along Figure 1A.Fig. 4 shows the first sliding block 146, the first sliding groove 136, second
The cross section of sliding block 127 and second sliding slot 147, and show the second sliding block 127 and the second of movable plate 140 of pressing plate 120
Matching relationship between sliding slot 147 and between the first sliding block 146 and the first sliding groove 136 of support plate 130 of movable plate 140.
As shown in Figure 3B, thickness of the pressing plate 120 at its trailing edge 122 is more than the thickness at 120 remaining position of pressing plate.This
Sample setting is in order to enable the thickness of the second sliding block 127 at trailing edge 122 can be arranged larger, so that pressing plate
120 relative to movable plate 140 sliding it is more steady.
Fig. 5 shows that a work period of the automatic tin cream adding device 100 of the present invention, center line L represent paste solder printing
The web plate of machine, automatic tin cream adding device 100 are used to the tin cream in solder paste can 700 being assigned to web plate L, Fig. 5 (a)-(e) decomposition
It shows in a work period of automatic tin cream adding device 100, movable plate 140 and pressing plate 120 are relative to web plate L upper and lower
Change in location (i.e. the stroke of movable plate 140 and pressing plate 120) on direction (i.e. short transverse).Automatic tin cream adding device 100
One work period includes that solder paste can 700 is moved to the position fixing process of operating position from initial position in the height direction, is added
The course of work (hereinafter referred to as " course of work ") of tin and in the height direction by solder paste can 700 from operating position back to initial
The process of position.It should be noted that Fig. 5 (a)-(e) be not offered as automatic tin cream adding device 100 in the work period relative to
Web plate L is moved left and right, and automatic tin cream adding device 100 can move in a work period relative to web plate L, can also be opposite
It is fixed in web plate L motionless.As an example, automatic tin cream adding device 100 is relative to net in the course of work for adding tin
Version L is linearly moving in the horizontal direction, to divide along straight line or curve since the initial position for needing to add tin cream on halftone L
With tin cream, until reaching the final position for needing to add tin cream of web plate L.And by solder paste can 700 in the height direction from initial
Position is moved in the position fixing process of operating position and in the height direction by solder paste can 700 from operating position back to just
During beginning position, automatic tin cream adding device 100 can not in the horizontal direction be moved relative to web plate L, can also phase
Web plate L is moved in the horizontal direction.As an example, there are one park automatic tin cream adding device 100 in printing machine
Position needs before the work period for starting automatic tin cream adding device 100 first by automatic tin cream adding device 100 from parking position
The original position for needing to add tin cream for being moved to web plate L is set, and completes to need automatic tin cream adding after adding tin process
Device 100 is moved back into stand from the final position for needing to add tin cream of web plate L.As an example, by solder paste can 700
Be moved in the height direction from initial position operating position position fixing process can be happened at by automatic tin cream adding device 100 from
Stand be moved to web plate L need plus tin cream original position during, in the height direction by solder paste can 700 from
Operating position back to initial position process can be happened at by automatic tin cream adding device 100 from web plate L need plus tin cream
Final position at be moved to stand during.
In a work period of automatic tin cream adding device 100, pressing plate 120 and movable plate 140 have with down stroke：
(i) stroke moved jointly downwardly against the operating position of movable plate (140), (ii) is in the working position for reaching movable plate (140)
The stroke relatively moved downwards is postponed, the stroke that (iii) is relatively moved upwards after the course of work, (iv) is common upwards to be moved
Dynamic stroke.Wherein, the stroke (i) moved jointly downwardly against the operating position of movable plate (140) is realized solder paste can 700
The position fixing process of operating position is moved to from initial position in the height direction, (ii) is in the working position for reaching movable plate (140)
Postponing the stroke relatively moved downwards realizes the course of work for adding tin, and (iii) is moved relatively upwards after the course of work
The stroke that dynamic stroke and (iv) moves jointly upwards, which realizes, in the height direction returns to solder paste can 700 from operating position
The process of initial position.
Fig. 5 (a) shows the initial position of pressing plate 120 and movable plate 140, and in initial position, driving device 160 is not opened also
Beginning driving push rod 110 moves down, thus pressing plate 120 is fixed by push rod 110, and movable plate 130 locks machine by top
Structure (142,122) is locked and cannot be moved down by pressing plate 120.Fig. 5 (b) shows that movable plate 140 is just moved down into it
Operating position, at this point, movable plate 140 is locked by lower part single direction locking mechanism (144,134) and cannot continue to move down.From figure
The stroke of 5 (a) to Fig. 5 (b) are the stroke that pressing plate 120 and movable plate 140 move jointly downwardly against operating position.In the row
Cheng Zhong, top locking mechanism (142,122) still lock movable plate 140, prevent movable plate 140 from moving freely downwards, but energy
Moving down and move down with push rod 110 and pressing plate 120.Therefore, with 160 driving push rod 110 of driving device to
Lower movement, movable plate 140 is with pressing plate 120 together as push rod 110 moves down.The end of this trip means solder paste can 700
Position fixing process terminate, solder paste can 700 be positioned in above web plate L needed for height at.
Fig. 5 (c) shows that pressing plate 120 is pressing solder paste can 700.From Fig. 5 (b) to Fig. 5, the stroke of (C) is and reaches
The stroke relatively moved downwards behind the operating position of movable plate 140.In the trip, movable plate 140 is by lower part monodirectional locking
Mechanism (144,134) locks and cannot continue to move down, and top locking mechanism (142,122) discharges movable plate 140 so that
The pressing plate 120 can be moved down relative to movable plate 140.When pressing plate 120 is moved to and solder paste can relative to movable plate 140
700 when being in contact, and the tin course of work is added to start, and the continuing to move down of pressing plate 120 can press solder paste can 700 so that solder paste can
700 relatively move with the nozzle 500 on workbench 150 and being contained in solder paste can 700 is mounted on, to will be received in tin
Tin cream in cream tank 700 is from the web plate L for being assigned to lower section in nozzle 500.The end of this trip means that pressing plate 120 is completed
Tin is added to act, the course of work terminates.
Fig. 5 (d) shows that pressing plate 120 rises to top locking mechanism (142,122) after the course of work and locks again
Determine movable plate 140, locking at this time is in order to which movable plate 130 is moved up back its initial position (such as Fig. 5 by pressing plate 120
(e) shown in).Stroke from Fig. 5 (c) to Fig. 5 (d) be after the course of work, pressing plate 120 and movable plate 140 it is upward
The stroke of relative movement.In the trip, top locking mechanism (142,122) still discharges movable plate 142, and pressing plate 120 is opposite
It is moved up in movable plate 140, until the trailing edge 122 of pressing plate 120 abuts the stress flange 142 of movable plate 140.
Fig. 5 (e) shows that movable plate 130 moves up back its initial position.Stroke from Fig. 5 (d) to Fig. 5 (e) is
The upward stroke moved jointly of pressing plate 120 and movable plate 140.In the trip, top locking mechanism (142,122), which locks, to be moved
Movable plate 140 so that movable plate 140 is moved up and moved up with push rod 110.The end of this trip means pressing plate
120 and movable plate 140 return to its initial position, a work period of automatic tin cream adding device 100 terminates.
As a result of mutually matched support plate 130 as introduced above, movable plate 140 and pressing plate 120, it is of the invention from
Dynamic plus tin cream device 100 only can be realized as solder paste being moved to high needed for web plate top using only a driving device 160
The location action of degree, and tin cream is assigned to from solder paste can nozzle on web plate and adds tin action.Therefore, of the invention automatic
Add 100 mechanical construction and control system of tin cream device simple, and occupied space is little, cost is relatively low.
Now turn to Figure 1A and Figure 1B.As shown in FIG. 1A and 1B, the present invention also provides used in automatic tin cream adding device
The device for preventing tin cream from dripping in 100, and the present invention also provides coordinate with the device for preventing tin cream from dripping
The solder paste can 700 used.
Tin cream is the larger fluid of viscosity so that the shell 710 of the tin cream and solder paste can 700 that are contained in solder paste can is (such as
Shown in Fig. 7 A) it sticks together, and tin cream has certain dead weight.When solder paste can 700 it is opening down pass through tin cream nozzle 500
When on workbench 150, even if pressing plate 120 if pressing the dead weight of 700 tin cream of solder paste can without that can make tin cream have from tin
The trend flowed out in cream nozzle 500.And since the shell 710 of tin cream and solder paste can 700 is glutinous together, tin cream from heave hand
Dynamic solder paste can 700 is moved down relative to the nozzle 500 being contained in solder paste can 700, and solder paste can 700 is relative to nozzle 500
Move down tin cream can be squeezed out from solder paste can 700, this has aggravated the trend that tin cream is flowed out from nozzle 500.
For this purpose, the present invention provides the devices for preventing tin cream from dripping and the device with for preventing tin cream from dripping to match
The solder paste can 700 used is closed, to prevent tin cream from being dripped from tin cream nozzle 500 due to dead weight.
Fig. 6 shows retainer 180 and height adjustment device 190 in the device for preventing tin cream from dripping.Such as Fig. 6 institutes
Show, includes retainer 180 and height adjustment device 190, one end of height adjustment device 190 for preventing the device that tin cream drips
It is connected on retainer 180.As an example, retainer 180 is equipped with through-hole 181, size and the solder paste can 700 of through-hole 181
The outer diameter of shell 710 match.
As shown in FIG. 1A and 1B, when in use, retainer 180 is in the workbench 150 for carrying solder paste can 700
Top, and pass through the shell 710 of its through-hole 181 connection solder paste can 700.One end of retainer 180, which is slidably attached at, to be used for
On the support device of work level (i.e. movable plate 140) for supporting workbench 150, so that retainer 180 can be with solder paste can 700
The reduction of middle tin cream and as solder paste can 700 moves down, to adapt to the opposite position of tin cream nozzle 500 and tin cream tank shell 710
Set variation.It should be noted that, although in the embodiment shown in Figure 1A and Figure 1B, workbench branch that retainer 180 is connected
Support arrangement is movable plate 140, but for the automatic tin cream adding device without using movable plate 140, can also use this
The device for preventing tin cream from dripping provided is provided, support device of work level can be the component not moved at this time, as long as
The component is used to support workbench 150.That is, any automatic tin cream adding device, as long as it uses inverted tin cream
Tank adds tin, can use the above-mentioned device for preventing tin cream from dripping provided by the invention, and when in use, retainer
180 are connected on the support device of work level for being used to support solder paste can workbench.
Still as shown in Figure 1A and 1B, as retainer 180, the other end of height adjustment device 190 is also connected to shifting
On movable plate 140, for adjusting height of the retainer 180 relative to movable plate 140.As an example, height adjustment device 190
Free end for clockwork spring, clockwork spring is connected with retainer 180, and the helical coil portion of clockwork spring is mounted on movable plate 140
On, movable plate 140 is equipped with corresponding accommodation space 149 (see Fig. 2A) to accommodate the helical coil portion of clockwork spring.Clockwork spring
Elastic force should match with the weight of the tin cream accommodated in solder paste can 700.Specifically, the elastic force of clockwork spring cannot be arranged
It is too big, it in order to avoid solder paste can 700 is pulled from tin cream nozzle 500, can not be arranged too small, in order to avoid cannot be to solder paste can
700 apply enough pulling force to offset the dead weight of tin cream.When executing the course of work of shown in fig. 5 plus tin, clockwork spring makes
Retainer 180 can be pressed with solder paste can 700 and move down and move.Height adjustment device 190 may include two
Clockwork spring, described two clockwork springs are separately connected the both ends of retainer 180.Two clockwork springs of setting can be more steady
Ground adjusts height of the retainer 180 relative to movable plate 140.It should be noted that as with retainer 180, in automatic tin adding
When cream device does not use movable plate, height adjustment device 190 is connected on the support device of work level of support workbench.
As shown in fig. 6, retainer 180 includes the sliding block 182 positioned at one side.Sliding block 182 can be filled with worktable support
It sets the sliding slot (such as second sliding slot 147 of movable plate 140) being arranged on (such as movable plate 140) to match, retainer 180 can be slided
It is connected to dynamicly on support device of work level (such as movable plate 140).As an example, on sliding block 182 and movable plate 140
The cross section of two sliding slots 147 is trapezoidal, and their size matches, so that sliding block 182 can be from second sliding slot 147
Lower both ends are inserted into second sliding slot 147, and can be slided up and down without transverse to second sliding slot along second sliding slot 147
It is loosened from second sliding slot 147 on 147 direction.
Fig. 7 A and Fig. 7 B respectively illustrate the top perspective view and bottom perspective view of the solder paste can of the present invention.Such as Fig. 7 A and 7B
Shown, solder paste can 700 includes shell 710 and lid 720, and there is shell 710 outlet 712, lid 720 to cover in outlet 712.By tin
After cream is fitted into shell 710, lid 720 is sealed exporting 712, and tin cream is sealed up for safekeeping in shell 710.
The outer wall of shell 710 is equipped with clamping apparatus 750, when solder paste can 700 is down inserted into retainer 180 by outlet 712
Through-hole 181 in when (as shown in Figure 1A), clamping apparatus 750 can be matched with the through-hole 181 of retainer 180, by tin cream
Tank 700 is connected in retainer 180.As an example, clamping apparatus 750 is to extend along the circumference of 710 outer wall of shell
Defining flange.As an example, clamping apparatus 750 is positioned close to the position of outlet 712, and thus clamping apparatus 750 can be with
Lid 720 coordinates and tin cream is sealed in solder paste can 700, and Fig. 8 A show the sectional view of tin cream canister assembly 800 of the present invention, Fig. 8 B
Show the stereogram of the tin cream nozzle in tin cream canister assembly of the present invention.As shown in Figure 8 A, tin cream canister assembly 800 of the present invention includes
Solder paste can 700 as shown in Figure 7, the tin cream being contained in solder paste can 700 and the tin cream nozzle being contained in solder paste can 700
500 (as shown in Figure 8 B).Tin cream canister assembly 800 is mounted on by tin cream nozzle 500 on workbench 150 (as shown in Figure 1A).
As shown in Figure 8 B, tin cream nozzle 500 have nozzle body 510, extend through nozzle body 510 nozzle bore 520,
Enlarged head 530 positioned at 510 one end of nozzle body and the jet hole 550 positioned at 510 other end of nozzle body.Such as Fig. 8 A institutes
Show, the internal diameter of the diameter and solder paste can 700 of enlarged head 530 matches.Outer diameter of the nozzle body 510 near jet hole 550
Can be arranged it is smaller, by tin cream nozzle 500 be mounted on workbench 150 tin cream through-hole 155 in (as shown in Figure 9 B).
When forming tin cream canister assembly 800 using the solder paste can 700 for accommodating tin cream, first by the lid 720 of solder paste can 700
It is taken off from outlet 712, the enlarged head 530 of tin cream nozzle 500 is then inserted into shell from the outlet of solder paste can 700 712
In 710.Near outlet 712 in solder paste can 700 and it is underfilled with tin cream, but there are installation spaces for tin cream nozzle 500.
When tin cream canister assembly 800 be inversely installed on workbench 150 so that the opening 712 of solder paste can 700 downward when,
Tin cream nozzle 500 by workbench 150 it is fixed in the case of, by pressing plate 120 press solder paste can 700 bottom enable to
The shell 710 of solder paste can 700 is moved down relative to tin cream nozzle 500, to by tin cream from the jet hole of tin cream nozzle 500
550 distribute.
It is above-mentioned for prevent tin cream drip device matched with solder paste can 700, can reduce due to tin cream dead weight and from
The amount of the tin cream at jet hole 550 is dripped or remained at tin cream jet hole 550.
Fig. 8 C show sectional view of the present invention for tin component (solder paste can holding component).As shown in Figure 8 C, of the invention
Include retainer 180, height adjustment device 190 and solder paste can 700 etc. for tin component, for providing tin for automatic tin cream adding device
Cream.The mutual cooperation that defining flange 750 and retainer 180 on tin cream tank shell are utilized for tin component of the present invention, is providing
It can prevent tin cream from being dripped due to dead weight when tin cream, it is cost-effective thus, it is possible to improve the utilization rate of tin cream, while can also prevent
Only tin cream is dropped in unwanted position, improves the production efficiency of product.
Fig. 9 A show the stereogram of the workbench 150 of the present invention.Fig. 9 B be partial cross at Fig. 1 workbench 150 and
Enlarged drawing, it illustrates the position relationships of gas passage 900 and tin cream through-hole 155 in workbench 150.The present invention also provides
Device for removing residual tin cream automatically comprising gas passage 900 (such as Fig. 9 A and Fig. 9 B being arranged in workbench 150
It is shown).
As shown in fig. 9 a and fig. 9b, tin cream through-hole 155 and gas passage 900, tin cream through-hole 155 are equipped in workbench 150
For accommodating tin cream jet hole 550, gas passage 900 is used to the gas direction in purge gas source (not shown) being contained in tin
Tin cream jet hole 550 in cream through-hole 155 guides, to cut remaining tin at (or removing) tin cream jet hole 550 by gas
Cream.
Specifically, workbench 150 includes the first thicker portion 157 and the second thinner part 156, the second thinner part
156 bottom surface 156a be higher than the first thicker portion 157 bottom surface 157a, on the first thicker portion 157 formed with it is described
The step surface 158 that the bottom surface 156a of second thinner part 156 is connected.Tin cream through-hole 155 extends through second thinner
Divide 156, gas passage 900 is arranged in the first thicker portion 157.Gas passage 900 includes gas access 910 and gas vent
920, gas access 910 is connected to purge gas source, and gas vent 920 is arranged on step surface 158, and gas is blowed to receiving
Tin cream jet hole 550 in tin cream through-hole 155.As an example, gas vent 920 is positioned proximate to tin cream through-hole
155, to improve the cleaning efficiency of clean gas.
Gas vent 920 is in flat, so that the cutting gas flowed out from gas vent 920 is formed as air knife.Gas is logical
Road 900 includes first passage part 930 and second channel part 940, and first passage part 930 is connected by gas access 910
Purge gas source, second channel part 940 connect gas vent 920.Second channel part 940 is thinner than first passage part 930,
It is accelerated so that flowing to the gas in second channel part 940 from first passage part 930, is formed at gas vent 920
More sharp air knife.In addition, the clean gas can be compressed gas, to improve the flow velocity of gas, to be conducive to make
Air knife is sharper.
The above-mentioned device for removing residual tin cream automatically stops after adding the tin course of work to terminate in pressing plate 120
After squeezing solder paste can 700,550 remaining tin cream of tin cream jet hole is cut away immediately, the residual tin cream cut away is fallen on web plate
Tin cream where position, to prevent during ramping up workbench 150 to initial position or will be automatic
During adding tin cream device 100 to move integrally, remaining tin cream is arbitrarily dropped on web plate and does not need at tin cream jet hole 550
Distribute the position of tin cream.
This specification uses examples to disclose the present invention, and one or more of examples are illustrated in attached drawing.Each
Example is provided to explain the present invention and provide, be not intended to be limiting of the invention.In fact, for those skilled in the art and
Speech it is readily apparent that without departing from the scope or spirit of the invention can to the present invention various modifications can be carried out and
Modification.For example, the diagram of a part as one embodiment or description feature can be used together with another embodiment,
To obtain further embodiment.Therefore, it is intended that the model of the invention covered in the appended claims and its equivalent
Enclose the modifications and variations of interior progress.
Claims (11)
1. for removing the device for remaining tin cream automatically, it is characterised in that including：
Workbench (150), the workbench (150) accommodate tin cream nozzle for carrying solder paste can (700), solder paste can (700)
(500), there is the tin cream nozzle (500) tin cream jet hole (550), the workbench (150) to have tin cream through-hole (155),
The tin cream through-hole (155) is for accommodating tin cream jet hole (550)；
The gas passage (900) being arranged in the workbench (150), the gas passage (900) include gas access (910)
With gas vent (920), the gas access (910) is connected to purge gas source, the gas vent (920) be configured as by
Gas blows to the tin cream jet hole (550) being contained in tin cream through-hole (155), to cut the tin cream jet hole
(550) remaining tin cream at.
2. the device of automatic removing residual tin cream according to claim 1, it is characterised in that：
The gas passage (900) includes first passage part (930) and second channel part (940), the first passage portion
Divide (930) connection the purge gas source, second channel part (940) connection gas vent (920), described second
Channel part (940) is thinner than first passage part (930) so that the flowing gas in the first passage part (930) is in institute
It states in second channel part (940) and is accelerated.
3. the device of automatic removing residual tin cream according to claim 1, it is characterised in that：
The gas vent (920) is in flat, so that the cutting gas flowed out from the gas vent (920) is sharper.
4. the device of automatic removing residual tin cream according to claim 1, it is characterised in that：
The gas is compressed gas.
5. the device of automatic removing residual tin cream according to claim 1, it is characterised in that：
The workbench (150) includes the first thicker portion (157) and the second thinner part (156), second thinner part
(156) bottom surface (156a) is higher than the bottom surface (157a) of first thicker portion (157), in first thicker portion
(157) step surface (158) being connected with the bottom surface (156a) of second thinner part (156) is formed on；
Wherein, the tin cream through-hole (155) extends through second thinner part (156), gas vent (920) setting
On the step surface (158).
6. the device of automatic removing residual tin cream according to claim 5, it is characterised in that：
The gas vent (920) is adjacent with the tin cream through-hole (155).
7. the device of automatic removing residual tin cream according to claim 5, it is characterised in that：
The gas passage (155) is arranged in first thicker portion (157).
8. the device of automatic removing residual tin cream according to claim 1, it is characterised in that：
The workbench (150) is fixedly attached to one end of support device of work level (140).
9. the device of automatic removing residual tin cream according to claim 8, it is characterised in that：
The solder paste can (700) includes shell (710), and the shell (710) accommodates the tin cream nozzle (500), the shell
(710) can be mobile relative to the tin cream nozzle (500), the solder paste can (700) is fallen by the tin cream nozzle (500)
It is carried on setting on the workbench (150), the shell (710) of the solder paste can (700) passes through on solder paste can (700) top
The pressing plate (120) of lower movement is extruded and mobile relative to the tin cream nozzle (500), so that tin cream can be by from described
It is squeezed out in solder paste can (700).
10. the device of automatic removing residual tin cream according to claim 9, it is characterised in that：
The device of the automatic removing residual tin cream is configured as after pressing plate (120) stops the extruding solder paste can (700)
Gas is blowed to the tin cream jet hole (550) being contained in tin cream through-hole (155) by the gas vent (920), from
And cut remaining tin cream at the tin cream jet hole (550).
11. for removing the device for remaining tin cream automatically, it is characterised in that including any one technology in claims 1 to 10
The arbitrary combination of feature or technical characteristic.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245207.9A CN108738246B (en) | 2017-04-14 | 2017-04-14 | Device for automatically removing residual solder paste |
| EP18734284.5A EP3610974B1 (en) | 2017-04-14 | 2018-04-13 | An apparatus for automatically clearing residual solder paste with a gas channel in the working platform bearing a solder paste tub |
| PCT/IB2018/000496 WO2018189592A1 (en) | 2017-04-14 | 2018-04-13 | An apparatus for automatically clearing residual solder paste with a gas channel in the working platform bearing a solder paste tub |
| KR1020197033356A KR102456216B1 (en) | 2017-04-14 | 2018-04-13 | Automatic cleaning device for residual solder paste with gas channels in the work platform that supports the solder paste pail |
| US16/604,463 US11072033B2 (en) | 2017-04-14 | 2018-04-13 | Apparatus for automatically clearing residual solder paste with a gas channel in the working platform bearing a solder paste tub |
| TW107112759A TWI760479B (en) | 2017-04-14 | 2018-04-13 | A device for automatically clearing residual solder paste |
| JP2019555891A JP7152416B2 (en) | 2017-04-14 | 2018-04-13 | A device that automatically removes residual solder paste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245207.9A CN108738246B (en) | 2017-04-14 | 2017-04-14 | Device for automatically removing residual solder paste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108738246A true CN108738246A (en) | 2018-11-02 |
| CN108738246B CN108738246B (en) | 2023-08-04 |
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ID=63924580
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710245207.9A Active CN108738246B (en) | 2017-04-14 | 2017-04-14 | Device for automatically removing residual solder paste |
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| Country | Link |
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| CN (1) | CN108738246B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111232343A (en) * | 2020-01-19 | 2020-06-05 | 广州适普电子有限公司 | Device for removing residual solder paste |
| CN111702282A (en) * | 2020-07-13 | 2020-09-25 | 迈普通信技术股份有限公司 | Through hole element unsoldering device, system and method |
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| CN111702282A (en) * | 2020-07-13 | 2020-09-25 | 迈普通信技术股份有限公司 | Through hole element unsoldering device, system and method |
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|---|---|
| CN108738246B (en) | 2023-08-04 |
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