WO2018189591A2 - 用于防止锡膏滴落的装置 - Google Patents

用于防止锡膏滴落的装置 Download PDF

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Publication number
WO2018189591A2
WO2018189591A2 PCT/IB2018/000495 IB2018000495W WO2018189591A2 WO 2018189591 A2 WO2018189591 A2 WO 2018189591A2 IB 2018000495 W IB2018000495 W IB 2018000495W WO 2018189591 A2 WO2018189591 A2 WO 2018189591A2
Authority
WO
WIPO (PCT)
Prior art keywords
solder paste
nozzle
holder
preventing
moving plate
Prior art date
Application number
PCT/IB2018/000495
Other languages
English (en)
French (fr)
Other versions
WO2018189591A3 (zh
Inventor
杨宁
Original Assignee
伊利诺斯工具制品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710245228.0A external-priority patent/CN108724920B/zh
Priority claimed from CN201720395603.5U external-priority patent/CN207190511U/zh
Application filed by 伊利诺斯工具制品有限公司 filed Critical 伊利诺斯工具制品有限公司
Priority to KR1020197033357A priority Critical patent/KR102455167B1/ko
Priority to JP2019555911A priority patent/JP7191848B2/ja
Priority to US16/604,467 priority patent/US11084114B2/en
Priority to EP18769780.0A priority patent/EP3610957B1/en
Publication of WO2018189591A2 publication Critical patent/WO2018189591A2/zh
Publication of WO2018189591A3 publication Critical patent/WO2018189591A3/zh

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04Mounting of components, e.g. of leadless components
    • H05K13/046Surface mounting
    • H05K13/0469Surface mounting by applying a glue or viscous material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/06Solder feeding devices; Solder melting pans
    • B23K3/0607Solder feeding devices
    • B23K3/0638Solder feeding devices for viscous material feeding, e.g. solder paste feeding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B05C11/101Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to weight of a container for liquid or other fluent material; responsive to level of liquid or other fluent material in a container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • B23K3/087Soldering or brazing jigs, fixtures or clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/014Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like comprising means for preventing oozing
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/01Tools for processing; Objects used during processing
    • H05K2203/0104Tools for processing; Objects used during processing for patterning or coating
    • H05K2203/0126Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3457Solder materials or compositions; Methods of application thereof
    • H05K3/3478Applying solder preforms; Transferring prefabricated solder patterns
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3457Solder materials or compositions; Methods of application thereof
    • H05K3/3485Applying solder paste, slurry or powder

Definitions

  • This application relates to apparatus for preventing solder paste from dripping, and more particularly to apparatus for preventing solder paste from dripping in a solder paste printer used in printed circuit board surface mount technology.
  • solder paste printer also known as a stencil printer
  • Solder paste printing machines generally include a stencil (or a stencil), a paste paste device, a squeegee or a squeegee.
  • the board is automatically fed into a solder paste printer having a pattern of solder pads or some other conductive surface on which the solder paste can be deposited, and having a reference point on the board
  • One or more apertures or indicia for use as a reference point to align the board with the screen in the solder paste printer prior to printing the solder paste onto the board.
  • the solder paste is dispensed by moving the wiper or squeegee through the stencil to force the solder paste through the holes in the stencil and onto the board. After the printing operation, the board is then sent to another workstation within the printed circuit board processing line.
  • the automatic solder paste device on the solder paste printer is used to automatically add canned or cartridge solder paste to the stencil of the solder paste printer to replenish the solder paste that is consumed during the printing process.
  • the solder paste can usually form a solder paste canister assembly with a solder paste nozzle inserted into the solder paste can from the opening of the solder paste can, and distribute the solder paste from the solder paste can by the relative displacement of the solder paste can and the solder paste nozzle (or squeeze) Press it out.
  • the automatic solder paste device first install the solder paste can assembly on the automatic solder paste device so that the solder paste can is opened downward, and then move the solder paste can assembly to a certain position above the mesh plate.
  • the solder paste is dispensed from the solder paste tank nozzle to the stencil by extrusion or extraction (this action is simply referred to as “plus tin”).
  • the two actions of positioning and tinning are usually driven by two separate drive components (eg pusher cylinders, rotary cylinders, motors, etc.). With two drive units
  • the automatic solder paste device makes the mechanical structure and control system of the solder paste printing machine complicated, and takes up a lot of space and costs.
  • solder paste after the solder paste is dispensed from the solder paste can nozzle to the stencil by performing an action such as pressing or drawing, the solder paste itself has its own weight, and since the solder paste is sticky, the solder paste can be finished after the tinning action is completed.
  • the nozzle opening of the nozzle usually has solder paste residue.
  • a tray for receiving the residual solder paste which is dripped is usually added near the nozzle opening of the solder paste can nozzle, and then the tray is periodically cleaned. Maintenance costs are increased due to the need for the operator to clean the pallets. Summary of the invention
  • An object of the present application is to provide a device capable of preventing a solder paste from dripping from a solder paste can by its own weight by offsetting the weight of the solder paste.
  • the apparatus for preventing solder paste from dripping includes: a table supporting device; a table fixedly connected to one end of the table supporting device, wherein the table is for carrying a solder paste can,
  • the solder paste can includes a housing in which a solder paste nozzle is housed, and the solder paste nozzle is mounted on the work table, so that the solder paste can is carried upside down through the solder paste nozzle
  • the housing is movable relative to the solder paste nozzle such that the solder paste contained in the solder paste can is extruded from the solder paste nozzle;
  • the holder, the holder is connected to the tin a housing of the paste canister and above the table, the holder being slidably coupled to the table support device such that the holder can be lowered as the solder paste in the solder paste can be reduced Moving to adjust the relative position of the solder paste nozzle and the housing.
  • the above apparatus for preventing solder paste from dripping further comprising height adjustment means, one end of the height adjustment means is connected to the holder, and the other end of the height adjustment means is connected to the table support means for The height of the cage relative to the table support is adjusted.
  • the height adjusting device is a spring, the free end of the spring is connected to the holder, and the spiral portion of the spring is mounted at work. On the support device.
  • the table support device is provided with an accommodation space for accommodating the spiral wound portion of the spring spring.
  • the spring force of the spring spring is configured to match the weight of the solder paste accommodated in the solder paste can.
  • the height adjusting means includes two springs which are respectively connected to both ends of the holder.
  • the holder includes a slider on one side thereof, the table supporting device includes a chute on one side thereof, the slider and the chute Cooperating to slidably couple the cage to the table support.
  • the slider and the chute are both trapezoidal in cross section.
  • the holder includes a through hole having a size matching the outer diameter of the case of the solder paste can; the case of the solder paste can
  • the outer wall has a snapping device, and an edge of the through hole of the retainer is engaged under the latching device.
  • the engaging means is a limiting flange extending along the circumference of the outer wall of the casing.
  • the solder paste can is pressed by a press plate which is moved up and down thereon, so that the solder paste can be extruded from the solder paste nozzle.
  • the apparatus for preventing solder paste from dripping of the present application can prevent the solder paste from dripping from the solder paste can by its own weight by offsetting the self-weight of the solder paste, thereby reducing the solder paste remaining at the nozzle opening of the solder paste can. And reduce the undesirable solder paste dripping during the moving automatic solder paste device.
  • FIGS. 1A and 1B are respectively a perspective view and an exploded view of the automatic solder paste device of the present application;
  • FIGs. 2A and 2B are respectively a perspective view showing the inside and outside of the moving plate of the present application;
  • 3A and 3B are respectively a perspective view of the inside and outside of the pressure plate of the present application.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 1A;
  • Figure 5 shows a duty cycle of the automatic solder paste device of the present application
  • Figure 6 is a perspective view showing the holder and the height adjusting device of the present application
  • Figures 7A and 7B are respectively a perspective view and an exploded view of the solder paste can of the present application
  • Figure 8A shows a cross-sectional view of the solder paste can assembly of the present application
  • Figure 8B is a perspective view of the nozzle in the solder paste can assembly of the present application.
  • Figure 8C shows a cross-sectional view of the assembly for providing solder paste of the present application
  • Figure 9A shows a perspective view of the workbench of the present application
  • Figure 9B is a partial cross-sectional view of the station of Figure 1A showing the gas passages and solder paste vias in the table. detailed description
  • the automatic solder paste device 100 includes a support plate 130, a push rod 110, a platen 120, a moving plate 140, and a table 150.
  • the support plate 130 is mounted on a solder paste printer (not shown) for supporting the automatic solder paste device 100.
  • the pressure plate 120 is disposed at the end of the push rod 110, and the push rod 110 can be driven by the driving device 160 to move up and down, thereby driving the pressure plate 120 to move up and down.
  • the support plate 130 is relatively fixed with respect to the up and down movement of the push rod 110.
  • the table 150 is fixed to the moving plate 140 on the inner side 141 of the moving plate 140, for example, at the lower end 143 of the moving plate 140.
  • the outer side 145 of the moving plate 140 is slidably disposed on the support plate 130 so that the moving plate 140 can slide up and down with respect to the support plate 130, thereby causing the table 150 to ascend and descend.
  • the moving plate 140 slides down to the bottom dead center, the moving plate 140 reaches its working position.
  • the stage 150 is used to carry the solder paste can 700 and the solder paste nozzle 500 housed in the solder paste can 700.
  • the table 150 is lowered to the desired height above the screen of the printing press (i.e., the L line shown in Fig. 5), and the positioning of the solder paste can 700 in the height direction is achieved.
  • the pressure plate 120 is slidably disposed on the inner side 141 of the moving plate 140.
  • the driving device 160 of the push rod 110 may be a cylinder or a motor or the like.
  • the drive unit 160 can be mounted on the solder paste printer as the support plate 130, or can be mounted on the support plate 130 such that the positions of the drive unit 160 and the support plate 130 remain relatively fixed. Mounting of the drive unit 160 on the support plate 130 can be accomplished by a transverse mounting plate 170 having an aperture 172 through which the push rod 110 extends.
  • a lower one-way locking mechanism 144, 134 is provided between the moving plate 140 and the support plate 130.
  • the lower one-way locking mechanism 144, 134 defines a bottom dead center for the moving plate 140 to move up and down, and locks the moving plate 140 when the moving plate 140 is in the operating position, so that the moving plate 140 cannot continue to move downward.
  • an upper locking mechanism 142, 122 is disposed between the moving plate 140 and the pressing plate 120, and the upper locking mechanism 142, 122 is configured such that the pressing plate 120 can move relative to the moving plate 140 without the moving plate 140 moving. It is also possible to move together with the moving plate 140 while the moving plate 140 is moving.
  • the upper locking mechanisms 142, 122 are configured such that the platen 120 can move the moving plate 140 together to move the moving plate 140 to the working position or move away from the working position, and enable the platen 120 to be locked at the moving plate 140. Moves up and down relative to the moving plate 140 in the working position.
  • the positioning action of moving the solder paste can 700 and the solder paste nozzle 500 to the height above the stencil can be achieved using only one driving device 160.
  • the tinning action of dispensing the solder paste from the solder paste can nozzle onto the stencil.
  • the upper locking mechanisms 142, 122 and the lower one-way locking mechanisms 144, 134 are described in detail below in conjunction with Figures 2A, 2B, 3A and 3B.
  • the lower one-way locking mechanism 144, 134 includes a blocking flange 134 disposed at the lower end 131 of the support plate 130 and a blocked flange disposed on the outer side 145 of the moving plate 140 (see Figure 2A).
  • the blocking flange 134 is located below the blocked flange 144 and has a portion that overlaps with the blocked flange 144.
  • the support plate 130 prevents the moving plate 140 from continuing to move downward, thereby locking the moving plate 140 in the working position.
  • the blocking flange 134 and the blocked flange 144 are formed by protrusions that extend outwardly from the support plate 130 and the moving plate 140, respectively.
  • the blocked flange 144 may be disposed at the middle or upper end of the outer side 145 of the moving plate 140, and the position of the blocked flange 144 on the outer side 145 of the moving plate 140 depends on the lifting distance of the predetermined table 150.
  • the upper locking mechanism 142, 122 includes a traction edge 122 disposed on the pressure plate 120 and a force bearing flange 142 disposed on the inner side 141 of the moving plate 140, the traction edge 122 being located
  • the force receiving flange 142 is below and has a portion that overlaps with the force receiving flange 142.
  • the moving plate 140 when the moving plate 140 is locked in its operative position by the lower one-way locking mechanism 144, 134, the continued downward movement of the pressure plate 120 causes its traction edge 122 to disengage from the force bearing flange 142 of the moving plate 140, thereby releasing the moving plate. 140. Thereafter, the platen 120 is movable downward relative to the moving plate 140 to press the solder paste can 700 to perform the tinning operation.
  • the pressure plate 120 is fixed by the push rod 110 in its initial position.
  • the force receiving flange 142 of the moving plate 140 abuts against the pulling edge 122 of the pressing plate 120, the moving plate 140 is fixed by the pressing plate 120.
  • the moving plate 140 Only when the driving device 160 starts to drive the push rod 110 to move downward, the moving plate 140 can move down along with the pressing plate 120 until reaching the working position of the moving plate 140.
  • the moving plate 140 is locked in its operative position by the lower one-way locking mechanisms 144, 134, the platen 120 can be moved downward relative to the moving plate 140 to perform the tinning operation.
  • the pressing plate 120 can be driven by moving the pressing plate 120 upward to the pulling edge 122 of the moving plate 140 against the force receiving flange 142.
  • the moving plate 140 moves up.
  • the force receiving flange 142 is formed by a protrusion that extends outward from the moving plate 140, and the traction edge 122 is an inner edge of the pressure plate 120.
  • the force bearing flange 142 may be disposed at an upper end of the inner side 141 of the moving plate 140.
  • the support plate 130 has a first chute 136 extending between its upper end 132 and lower end 131.
  • the moving plate 140 has a first slider 146 disposed on an outer side 145 thereof. The first slider 146 cooperates with the first sliding slot 136 to connect the moving plate 140 to the support plate 130 so as to be slidable up and down.
  • the first slider 146 and the first sliding slot 136 are both trapezoidal in cross section, and their dimensions are matched so that the first slider 146 can be inserted into the first sliding from the upper and lower ends of the first sliding slot 136. In the groove 136, and can slide up and down along the first chute 136 without being loosened from the first chute 136 in a direction transverse to the first chute 136.
  • the inner side 141 of the moving plate 140 has a second chute 147 extending between its upper end and lower end.
  • the platen 120 has a second slider 127 on its trailing edge 122.
  • the second slider 127 and the second chute 147 cooperate to connect the pressure plate 120 to the inner side 141 of the moving plate 140 so as to be slidable up and down.
  • the second slider 127 and the second sliding slot 147 are both trapezoidal in cross section, and their dimensions are matched so that the second slider 127 can be inserted into the second slider from the upper and lower ends of the second sliding slot 147. In the groove 147, and can slide up and down along the second sliding groove 147 without being loosened from the second sliding groove 147 in the direction transverse to the second sliding groove 147.
  • Fig. 4 shows a cross-sectional view taken along line A-A of Fig. 1A. 4 shows a cross section of the first slider 146, the first chute 136, the second slider 127, and the second chute 147, and shows the second slider 127 of the pressure plate 120 and the first of the moving plate 140.
  • the thickness of the platen 120 at its trailing edge 122 is greater than the thickness of the remainder of the platen 120. This arrangement is such that the thickness of the second slider 127 at the trailing edge 122 can be set larger to make the sliding of the pressure plate 120 relative to the moving plate 140 smoother.
  • FIGS. 5(a)-(e) are exploded showing the moving plate 140 and the platen 120 in the up and down direction (ie, the height direction) with respect to the stencil L during one duty cycle of the automatic solder paste device 100.
  • the position change on the upper side ie, the travel of the moving plate 140 and the pressure plate 120).
  • One duty cycle of the automatic solder paste device 100 includes a positioning process of moving the solder paste can 700 from the initial position to the working position in the height direction, a working process of adding tin (hereinafter referred to as "working process"), and a height direction.
  • Figure 5 (a) - (e) does not It indicates that the automatic solder paste device 100 moves to the left and right with respect to the screen L during the working cycle, and the automatic solder paste device 100 can move relative to the screen L in one working cycle, or can be fixed with respect to the screen L.
  • the automatic solder paste device 100 linearly moves in the horizontal direction with respect to the screen L during the working of adding tin to follow a straight line or curve on the screen L from the initial position where the solder paste is required. Dispensing the solder paste until the end of the stencil L is required to add the solder paste.
  • the automatic solder paste device 100 is in the process of positioning the solder paste can 700 from the initial position to the working position in the height direction and returning the solder paste can 700 from the working position to the initial position in the height direction. It may not move in the horizontal direction with respect to the screen L, or may move in the horizontal direction with respect to the screen L.
  • the automatic solder paste device 100 has a parking position in the printing press.
  • the automatic solder paste device 100 Before starting the duty cycle of the automatic solder paste device 100, the automatic solder paste device 100 needs to be moved from the parking position to the stencil L. The starting position of the solder paste is required, and after the tinning process is completed, the automatic solder paste device 100 needs to be moved from the termination position of the stencil L to the parking position.
  • the positioning process of moving the solder paste can 700 from the initial position to the working position in the height direction may occur at the start position of the solder paste required to move the automatic solder paste device 100 from the parking position to the screen L
  • the process of returning the solder paste can 700 from the working position to the initial position in the height direction may occur when the automatic solder paste device 100 is moved from the termination position of the stencil L to the parking position in the process of.
  • the platen 120 and the moving plate 140 have the following strokes: (i) a stroke that moves together toward the working position of the moving plate 140, and (ii) reaches the moving plate 140.
  • the stroke of the relative movement downward after the working position (ii i) the stroke of the relative movement upward after the end of the working process, (iv) the stroke of the common movement upward.
  • the stroke moving downward toward the working position of the moving plate 140 realizes a positioning process of moving the solder paste can 700 from the initial position to the working position in the height direction, and (ii) reaching the moving plate 140.
  • the working direction of the downward movement after the working position realizes the working process of the tinning, and (i ii) the upward moving movement after the end of the working process and the (iv) upward moving movement realize the soldering in the height direction.
  • Fig. 5(a) shows the initial positions of the pressing plate 120 and the moving plate 140.
  • the driving device 160 has not started to drive the push rod 110 to move downward, so that the pressing plate 120 is fixed by the push rod 110, and the moving plate is moved.
  • 140 is locked by the upper platen mechanism 142, 122 by the platen 120 and cannot be lowered Move.
  • Figure 5 (b) shows the moving plate 140 just moved down to its working position, at which time the moving plate 140 is locked by the lower one-way locking mechanism 144, 134 and cannot continue to move downward.
  • the stroke from Fig. 5(a) to Fig. 5(b) is the stroke in which the pressure plate 120 and the moving plate 140 move together toward the working position.
  • the upper locking mechanisms 142, 122 still lock the moving plate 140 so that the moving plate 140 cannot move freely downward, but can move downward as the push rod 110 and the pressure plate 120 move downward. Therefore, as the driving device 160 drives the push rod 110 to move downward, the moving plate 140 moves downward with the pressing plate 120 along with the push rod 110.
  • the end of this trip means that the positioning process of the solder paste can 700 ends and the solder paste can 700 is positioned at the desired height above the stencil L.
  • Figure 5 (c) shows that the platen 120 is pressing the solder pot 700.
  • the stroke from Fig. 5 (b) to Fig. 5 (C) is the stroke of the downward relative movement after reaching the working position of the moving plate 140.
  • the moving plate 140 is locked by the lower one-way locking mechanism 144, 134 and cannot continue to move downward, while the upper locking mechanisms 142, 122 release the moving plate 140 so that the platen 120 can be lowered relative to the moving plate 140 mobile.
  • the pressure plate 120 is moved relative to the moving plate 140 to contact with the solder paste can 700, the tinning work process begins, and the downward movement of the pressure plate 120 presses the solder paste can 700, so that the solder paste can 700 is mounted on the table 150.
  • the nozzles 500 which are accommodated in the solder paste can 700, are relatively moved, thereby distributing the solder paste contained in the solder paste can 700 from the nozzle 500 to the lower screen L.
  • the end of this trip means that the platen 120 has completed the tinning action and the work process is over.
  • Figure 5 (d) shows the platen 120 rising after the end of the working process such that the upper locking mechanism 142, 122 relocks the moving plate 140, at which point the locking is to move the moving plate 140 up to its original position by the platen 120 ( As shown in Figure 5 (e)).
  • the stroke from Fig. 5(c) to Fig. 5(d) is the upward relative movement of the platen 120 and the moving plate 140 after the end of the working process.
  • the upper locking mechanisms 142, 122 still release the moving plate 142, and the platen 120 moves upward relative to the moving plate 140 until the trailing edge 122 of the platen 120 abuts the force bearing flange 142 of the moving plate 140.
  • Figure 5 (e) shows the moving plate 130 moving up back to its original position.
  • the stroke from Fig. 5 (d) to Fig. 5 (e) is the stroke of the upward movement of the pressure plate 120 and the moving plate 140.
  • the upper locking mechanism 142, 122 locks the moving plate 140 such that the moving plate 140 follows the push rod 110 Move up and move up.
  • the end of this stroke means that the platen 120 and the moving plate 140 return to their original positions, and one duty cycle of the automatic solder paste device 100 ends.
  • the automatic solder paste device 100 of the present application can realize the need to move the solder paste can 700 to the top of the stencil using only one driving device 160.
  • the high positioning action and the tinning action of dispensing the solder paste from the solder paste can nozzle 500 onto the stencil. Therefore, the automatic solder paste device 100 of the present application has a simple mechanical structure and a control system, and has a small space and a low cost.
  • the present application also provides a device for preventing solder paste from dripping in the automatic solder paste device 100, and the present application also provides a device for preventing solder paste from dripping.
  • the solder paste is a highly viscous fluid such that the solder paste contained in the solder paste can 700 is adhered to the case 710 (shown in Fig. 7A) of the solder paste can 700, and the solder paste has a certain weight.
  • the solder paste can 700 When the solder paste can 700 is mounted on the table 150 through the solder paste nozzle 500 with the opening facing downward, even if the pressure plate 120 does not press the solder paste can 700, the self-weight of the solder paste causes the solder paste to flow out of the solder paste nozzle 500. . And since the solder paste is adhered to the housing 710 of the solder paste can 700, the self-weight of the solder paste drives the solder paste can 700 to move downward relative to the nozzle 500 housed in the solder paste can 700, and the solder paste can 700 is opposed to the nozzle The downward movement of 500 squeezes the solder paste out of the solder paste can 700, which increases the tendency of the solder paste to flow out of the nozzle 500.
  • the present application provides the apparatus for preventing solder paste from dripping and the solder paste can 700 used in conjunction with the apparatus for preventing solder paste from dripping, to prevent the solder paste from the solder paste nozzle due to its own weight. Dripping in 500.
  • Fig. 6 shows the holder 180 and the height adjusting device 190 in the apparatus for preventing solder paste from dripping.
  • the means for preventing the solder paste from dripping includes a holder 180 and a height adjusting device 190, and one end of the height adjusting device 190 is attached to the holder 180.
  • the holder 180 is provided with a through hole 181 having a size matching the outer diameter of the housing 710 of the solder can 700.
  • the holder 180 is above the table 150 for carrying the solder paste can 700, and the housing 710 of the solder paste can 700 is connected through its through hole 181.
  • One end of the holder 180 is slidably coupled to the table supporting device (i.e., the moving plate 140) for supporting the table 150, so that the holder 180 can follow the solder paste in the solder pot 700.
  • the solder can 700 is moved downward to accommodate the relative positional changes of the solder paste nozzle 500 and the solder canister housing 710. It should be noted that, in the embodiment shown in FIG. 1A and FIG.
  • the table supporting device to which the holder 180 is connected is the moving plate 140, but for the automatic soldering paste device not using the moving plate 140, It is also possible to use the apparatus for preventing solder paste from dripping provided by the present application, and the stage supporting means may be a non-moving part as long as the part is used to support the table 150. That is to say, any automatic solder paste device, as long as it uses an inverted solder paste can to add tin, can use the above-mentioned device for preventing solder paste from dripping provided by the present application, and in use, the holder 180 is connected. On the table support device for supporting the solder paste can stage.
  • the other end of the height adjusting device 190 is also coupled to the moving plate 140 for adjusting the height of the retainer 180 relative to the moving plate 140.
  • the height adjustment device 190 is a spring spring, and the spring spring includes a free end 191 and a spiral roll portion 195.
  • the free end 191 of the spring spring is connected to the holder 180, and the spiral roll portion 195 of the spring spring is mounted on the movement.
  • the moving plate 140 is provided with a corresponding receiving space 149 (see Fig. 2A) to accommodate the spiral coil portion 195 of the spring.
  • the spring force of the spring should match the weight of the solder paste contained in the solder pot 700.
  • the spring force of the spring spring cannot be set too large to prevent the solder paste can 700 from being pulled out from the solder paste nozzle 500, and cannot be set too small to prevent the solder paste can 700 from being applied to the solder paste can 700 to offset The weight of the solder paste.
  • the height adjustment device 190 may include two springs that are coupled to both ends of the holder 180, respectively. The provision of two springs provides a smoother adjustment of the height of the cage 180 relative to the moving plate 140. It is to be noted that, as with the holder 180, when the automatic solder paste device 100 does not use the moving plate 140, the height adjusting device 190 is attached to the table supporting device that supports the table 150.
  • the cage 180 includes a slider 182 on one side thereof.
  • the slider 182 can cooperate with a chute provided on the table supporting device (such as the moving plate 140) (such as the second chute 147 of the moving plate 140) to slidably connect the holder 180 to the table supporting device ( As on the moving board 140).
  • the slider 182 and the second chute 147 on the moving plate 140 are trapezoidal in cross section, and their dimensions are matched so that the slider 182 can be accessed from the second chute 147.
  • the lower ends are inserted into the second sliding slot 147 and can slide up and down along the second sliding slot 147 without being loosened from the second sliding slot 147 in a direction transverse to the second sliding slot 147.
  • the solder canister 700 includes a housing 710 and a cover 720 having an outlet 712 that covers the outlet 712. After the solder paste is loaded into the housing 710, the cover 720 seals the outlet 712 to seal the solder paste in the housing 710.
  • the outer wall of the housing 710 is provided with a snapping device 750.
  • the latching device 750 can The through hole 181 of the holder 180 is engaged to snap the solder paste can 700 into the holder 180.
  • the snap-fit device 750 is a limit flange that extends along the circumference of the outer wall of the housing 710.
  • the snap-fit device 750 is disposed adjacent the outlet 712, whereby the snap-fit device 750 can cooperate with the cover 720 to seal the solder paste in the solder pot 700.
  • FIG. 8A shows a cross-sectional view of a solder paste can assembly 800 of the present application
  • Figure 8B shows a perspective view of a solder paste nozzle in a solder paste can assembly of the present application
  • the solder paste can assembly 800 of the present application includes a solder paste can 700 as shown in FIG. ,, a solder paste housed in the solder paste can 700, and a solder paste nozzle 500 housed in the solder paste can 700 ( As shown in Figure 8B).
  • the solder paste can assembly 800 is mounted on the table 150 via a solder paste nozzle 500 (shown in Figure 1A).
  • the solder paste nozzle 500 has a nozzle body 510, a nozzle hole 520 extending through the nozzle body 510, an enlarged head portion 530 at the end of the nozzle body 510, and a nozzle opening 550 at the other end of the nozzle body 510.
  • the diameter of the enlarged head 530 matches the inner diameter of the solder can 700.
  • the outer diameter of the nozzle body 510 near the nozzle opening 550 can be set small to mount the solder paste nozzle 500 in the solder paste through hole 155 of the stage 150 (as shown in Fig. 9B).
  • the cover 720 of the solder paste can 700 is first removed from the outlet 712, and then the enlarged head portion 530 of the solder paste nozzle 500 is removed from the solder paste can.
  • the outlet 712 of the 700 is inserted into the housing 710.
  • the solder paste 700 is not filled with solder paste near the exit 712, but has a mounting space for the solder paste nozzle 500.
  • solder paste can assembly 800 When the solder paste can assembly 800 is mounted upside down on the table 150 such that the opening 712 of the solder paste can 700 faces downward, the solder paste nozzle 500 is held stationary by the table 150, through the platen The pressing of the bottom of the solder paste can 700 causes the housing 710 of the solder paste can 700 to move downward relative to the solder paste nozzle 500, thereby dispensing the solder paste from the nozzle opening 550 of the solder paste nozzle 500.
  • the above-described means for preventing the solder paste from dripping is matched with the solder paste can 700, and the amount of the solder paste which is dropped from the solder paste nozzle opening 550 or remains at the nozzle opening 550 due to the weight of the solder paste can be reduced.
  • Fig. 8C is a cross-sectional view showing the assembly (solder holder holding member) for providing a solder paste of the present application.
  • the assembly for providing a solder paste of the present application includes a holder 180, a height adjusting device 190, a solder paste can 700, and the like for supplying a solder paste to an automatic solder paste device.
  • the assembly for providing solder paste of the present application utilizes the mutual engagement of the limiting flange 750 on the solder canister housing and the holder 180 to prevent the solder paste from dripping due to its own weight when the solder paste is provided, thereby improving
  • the utilization of solder paste saves cost, and also prevents the solder paste from dripping in unnecessary positions and improves the production efficiency of the product.
  • a method of providing a solder paste using the assembly for providing a solder paste has been described above and will not be described herein.
  • Figure 9A shows a perspective view of the table 150 of the present application.
  • Figure 9B is a partial cross-sectional and enlarged view of the table 150 of Figure 1A showing the positional relationship of the gas passages 900 and the solder paste vias 155 in the table 150.
  • the present application also provides an apparatus for automatically removing residual solder paste comprising a gas passage 900 (shown in Figures 9A and 9B) disposed in the table 150.
  • the table 150 is provided with a solder paste through hole 155 for accommodating the solder paste nozzle opening 550 and a gas passage 900 for the cleaning gas source (not The gas in the display is directed toward the solder paste nozzle opening 550 housed in the solder paste via 155 to cut (or remove) the solder paste remaining at the solder paste nozzle opening 550 by gas.
  • the table 150 includes a first thicker portion 157 and a second thinner portion 156, the bottom surface 156a of the second thinner portion 156 being higher than the bottom surface 157a of the first thicker portion 157, thereby being in the first thicker portion
  • a stepped surface 158 is formed on 157 that is coupled to the bottom surface 156a of the second thinner portion 156.
  • a solder paste via 155 extends through the second thinner portion 156, and a gas channel 900 is disposed in the first thicker portion 157.
  • the gas passage 900 includes a gas inlet 910 and a gas outlet 920.
  • the gas inlet 910 is in communication with a source of cleaning gas disposed on the stepped surface 158 to blow the gas toward the solder paste nozzle port 550 housed in the solder paste via 155.
  • the gas outlet 920 is disposed adjacent to the solder paste via 155 to improve the cleaning efficiency of the cleaning gas.
  • the gas outlet 920 is flat to allow the cutting gas flowing out of the gas outlet 920 to be formed into an air knife.
  • the gas passage 900 includes a first passage portion 930 and a second passage portion 940 that are in communication with each other, the first passage portion 930 is connected to the source of the cleaning gas through the gas inlet 910, and the second passage portion 940 is connected to the gas outlet 920.
  • the second passage portion 940 is thinner than the first passage portion 930 such that gas flowing from the first passage portion 930 to the second passage portion 940 is accelerated, forming a sharper air knife at the gas outlet 920.
  • the cleaning gas may be a compressed gas to increase the flow rate of the gas, thereby facilitating sharpening of the air knife.
  • the above device for automatically removing the residual solder paste is cut off after the tinning work process is finished, that is, after the press plate 120 stops pressing the solder paste can 700, the residual solder which is left by the solder paste nozzle port 550 is cut off, and the residual tin is cut off.
  • the position where the solder paste on the stencil is located, thereby preventing the solder paste nozzle opening 550 during the process of raising the table 150 up to the initial position or moving the automatic solder paste device 100 as a whole.
  • the residual solder paste is randomly dropped on the stencil where no solder paste is dispensed.

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Abstract

本申请提供了用于防止锡膏滴落的装置,包括:工作台支撑装置;工作台,所述工作台固定地连接在工作台支撑装置的一端,所述工作台用于承载锡膏罐,所述锡膏罐包括壳体,所述壳体中容纳锡膏喷嘴,所述锡膏喷嘴安装在所述工作台上,从而所述锡膏罐通过所述锡膏喷嘴被倒置地承载在所述工作台上,所述壳体能够相对于锡膏喷嘴移动,以使得锡膏罐中容纳的锡膏从所述锡膏喷嘴中挤出;保持架,所述保持架连接锡膏罐的壳体,并处于工作台的上方,所述保持架可滑动地连接在工作台支撑装置上,以使得所述保持架能够随着锡膏罐中锡膏的减少而向下移动,以调节锡膏喷嘴和所述壳体的相对位置。

Description

用于防止锡膏滴落的装置
技术领域
本申请涉及用于防止锡膏滴落的装置, 尤其涉及在印刷电路板表面封贴 技术中使用的锡膏印刷机的防止锡膏滴落的装置。 背景技术
在印刷电路板表面封贴工艺中, 锡膏印刷机 (又称漏版印刷机) 用于将 锡膏印刷到电子产品 (如电路板) 上。 锡膏印刷机一般包括网板 (或称模 板) 、 加锡膏装置、 刮片或刮板等机构。 在印刷时, 电路板被自动地送入锡 膏印刷机内, 电路板具有可以使锡膏沉积在其上面的焊垫或某种其他导电面 的图案, 并且电路板上具有称为基准点的一个或多个小孔或标记, 用于作为 参考点在向电路板上印刷锡膏之前先将电路板与锡膏印刷机中的网板对齐。 在电路板已与印刷机内的网板对齐之后, 通过移动刮片或刮板掠过网板以迫 使锡膏穿过网板内的孔并落在电路板上来分配焊膏。 在印刷操作之后, 电路 板随后被送往印刷电路板加工生产线内的另一个工作站。
锡膏印刷机上的自动加锡膏装置用于将罐装或筒装的锡膏自动添加到锡 膏印刷机的网板上, 从而补充在印刷过程中被消耗掉的锡膏。 锡膏罐通常与 从锡膏罐的开口插入锡膏罐中的锡膏喷嘴构成锡膏罐组件, 通过锡膏罐与锡 膏喷嘴的相对位移来将锡膏从锡膏罐中分配 (或挤压) 出来。 在使用自动加 锡膏装置时, 首先将锡膏罐组件安装在自动加锡膏装置上, 使得锡膏罐开口 朝下, 接着将锡膏罐组件移动到网板上方的一定位置 (该动作简称为 "定 位" ) , 然后通过挤压或抽取等动作将锡膏从锡膏罐喷嘴中分配到网板上 (该动作简称为 "加锡" ) 。 定位和加锡这两个动作通常分别由两个独立的 驱动部件 (例如推杆汽缸、 旋转汽缸、 电机等) 进行驱动。 具有两个驱动部 件的自动加锡膏装置使得锡膏印刷机的机械结构和控制系统复杂, 且占用空 间较大, 成本高昂。
此外, 在实施挤压或抽取等动作将锡膏从锡膏罐喷嘴中分配到网板上之 后, 由于锡膏自身存在自重, 并且由于锡膏的粘性, 导致加锡动作结束后, 锡膏罐喷嘴的喷嘴口通常会有锡膏残留。 为此, 在现有的自动加锡膏装置 中, 通常在锡膏罐喷嘴的喷嘴口附近增加一个接收滴落的残留锡膏的托盘, 然后对托盘进行定期清理。 由于需要操作人员对托盘进行清理, 因此造成人 员维护成本增加。 发明内容
本申请的目的是提供一种能够通过抵消锡膏的自重而防止锡膏由于自重 而从锡膏罐中滴落的装置。
根据本申请的用于防止锡膏滴落的装置, 包括: 工作台支撑装置; 工作 台, 所述工作台固定地连接在工作台支撑装置的一端, 所述工作台用于承载 锡膏罐, 所述锡膏罐包括壳体, 所述壳体中容纳锡膏喷嘴, 所述锡膏喷嘴安 装在所述工作台上, 从而所述锡膏罐通过所述锡膏喷嘴被倒置地承载在所述 工作台上, 所述壳体能够相对于所述锡膏喷嘴移动, 以使得所述锡膏罐中容 纳的锡膏从所述锡膏喷嘴中挤出; 保持架, 所述保持架连接锡膏罐的壳体, 并处于工作台的上方, 所述保持架可滑动地连接在工作台支撑装置上, 以使 得所述保持架能够随着所述锡膏罐中锡膏的减少而向下移动, 以调节所述锡 膏喷嘴和所述壳体的相对位置。
根据上述的用于防止锡膏滴落的装置, 还包括高度调节装置, 所述高度 调节装置的一端与所述保持架相连, 所述高度调节装置的另一端与工作台支 撑装置相连, 用于调节保持架相对于所述工作台支撑装置的高度。
根据上述的用于防止锡膏滴落的装置, 所述高度调节装置为发条弹簧, 所述发条弹簧的自由端与所述保持架相连, 所述发条弹簧的螺旋卷部安装在 工作台支撑装置上。
根据上述的用于防止锡膏滴落的装置, 所述工作台支撑装置上设置有容 纳所述发条弹簧的螺旋卷部的容纳空间。 根据上述的用于防止锡膏滴落的装置, 所述发条弹簧的弹力被配置为与 所述锡膏罐中容纳的锡膏的重量相匹配。
根据上述的用于防止锡膏滴落的装置, 所述高度调节装置包括两个发条 弹簧, 所述两个发条弹簧分别连接所述保持架的两端。
根据上述的用于防止锡膏滴落的装置, 所述保持架包括位于其一侧的滑 块, 所述工作台支撑装置包括位于其一侧的滑槽, 所述滑块与所述滑槽相配 合, 以将所述保持架可滑动地连接在所述工作台支撑装置上。
根据上述的用于防止锡膏滴落的装置, 所述滑块与所述滑槽的横截面均 为梯形。
根据上述的用于防止锡膏滴落的装置, 所述保持架包括通孔, 所述通孔 的大小与所述锡膏罐的壳体的外径相匹配; 所述锡膏罐的壳体外壁上具有卡 接装置, 所述保持架的通孔的边缘卡合在所述卡接装置下方。
根据上述的用于防止锡膏滴落的装置, 所述卡接装置为沿着所述壳体的 外壁圆周延伸的限位凸缘。
根据上述的用于防止锡膏滴落的装置, 所述锡膏罐通过在其上方上下移 动的压板被挤压, 从而使得锡膏能够被从锡膏喷嘴中挤出。
本申请的用于防止锡膏滴落的装置其能够通过抵消锡膏的自重而防止锡 膏由于自重而从锡膏罐中滴落, 由此减少残留在锡膏罐喷嘴口处的锡膏, 并 减少在移动自动加锡膏装置过程中不期望的锡膏滴落。 附图说明
当结合附图阅读以下详细说明时, 本申请的这些和其他特征、 方面和优 点将变得更好理解, 在整个附图中, 相同的附图标记代表相同的零件, 其 中:
图 1A和 1B分别示出了本申请的自动加锡膏装置的立体图和分解图; 图 2A和 2B分别示出了本申请的移动板的内侧和外侧立体图;
图 3A和 3B分别示出了本申请的压板的内侧和外侧立体图;
图 4示出了沿图 1A中 A-A线的剖视图;
图 5示出了本申请的自动加锡膏装置的一个工作周期; 图 6示出了本申请的保持架和高度调节装置的立体图; 图 7A和图 7B分别示出了本申请的锡膏罐的立体图和分解图;
图 8A示出了本申请锡膏罐组件的剖视图;
图 8B示出了本申请锡膏罐组件中的喷嘴的立体图;
图 8C示出了本申请的用于提供锡膏的组件的剖视图;
图 9A示出了本申请的工作台的立体图;
图 9B是图 1A工作台处的部分剖视图, 其示出了工作台中的气体通道和 锡膏通孔。 具体实施方式
下面将参考构成本说明书一部分的附图对本申请的各种具体实施方式进 行描述。 应该理解的是, 虽然在本申请中使用表示方向的术语, 诸如 "前"、 "后"、 "上"、 "下"、 "左"、 "右" 、 "内"、 "外"等描 述本申请的各种示例结构部分和元件, 但是在此使用这些术语只是为了方便 说明的目的, 这些术语是基于附图中显示的示例方位而确定的。 由于本申请 所公开的实施例可以按照不同的方向设置, 所以这些表示方向的术语只是作 为说明而不应视作为限制。 在可能的情况下, 本申请中使用的相同或者相类 似的附图标记指的是相同的部件。
图 1A和 1B分别示出了本申请的自动加锡膏装置 100 的立体图和分解 图。 如图 1A和 1B所示, 自动加锡膏装置 100包括支撑板 130、 推杆 110、 压板 120、 移动板 140和工作台 150。 支撑板 130安装在锡膏印刷机 (未示 出) 上, 用于支撑自动加锡膏装置 100。 压板 120设在推杆 110的端部, 推 杆 110可以由驱动装置 160驱动而上下移动, 从而带动压板 120随之上下移 动。 相对于推杆 110的上下移动, 支撑板 130是相对固定的。 工作台 150在 移动板 140的内侧 141固定在移动板 140上, 例如固定在移动板 140的下端 143。 移动板 140的外侧 145可上下滑动地设置在支撑板 130上, 从而移动 板 140能够相对于支撑板 130上下滑动, 由此带动工作台 150上升和下降。 当移动板 140 向下滑动到下止点时, 移动板 140 到达其工作位置。 工作台 150用于承载锡膏罐 700 以及容纳在锡膏罐 700中的锡膏喷嘴 500。 当移动 板 140到达其工作位置时, 工作台 150下降到印刷机的网板 (即在图 5中示 出的 L线) 上方所需的高度处, 实现在高度方向上对锡膏罐 700的定位。 压 板 120可上下滑动地设置在移动板 140的内侧 141上。
推杆 110的驱动装置 160可以是气缸或电机等。 驱动装置 160可以与支 撑板 130—样安装在锡膏印刷机上, 也可以安装在支撑板 130上, 以使得驱 动装置 160和支撑板 130的位置保持相对固定。 驱动装置 160在支撑板 130 上的安装可以通过横向安装板 170实现, 横向安装板 170上设有供推杆 110 延伸穿过的孔 172。
仍然如图 1A和 1B所示, 移动板 140和支撑板 130之间设有下部单向锁 定机构 144, 134。 下部单向锁定机构 144, 134限定了移动板 140上下移动的 下止点, 并在移动板 140在工作位置时锁定移动板 140, 以使得移动板 140 不能继续向下移动。 并且移动板 140 和压板 120 之间设有上部锁定机构 142, 122, 上部锁定机构 142, 122被配置为使得所述压板 120能够在所述 移动板 140不移动的情况下相对于移动板 140移动, 也能够在移动板 140移 动时与移动板 140共同移动。 更具体而言, 上部锁定机构 142, 122被配置 为使得压板 120能够带动移动板 140共同移动以将移动板 140移动到工作位 置或移动远离工作位置, 并且使得压板 120能够在移动板 140被锁定在工作 位置时相对于移动板 140 上下移动。 通过设置所述上部锁定机构 142, 122 和下部单向锁定机构 144, 134, 仅仅使用一个驱动装置 160就能够实现将锡 膏罐 700及锡膏喷嘴 500移动到网板上方所需高度的定位动作, 以及将锡膏 从锡膏罐喷嘴中分配到网板上的加锡动作。
下面结合图 2A、 2B、 3A和 3B详细介绍上部锁定机构 142, 122和下部 单向锁定机构 144, 134。
图 2A和 2B分别示出了本申请的移动板 140的内侧和外侧立体图。 参见 图 1A、 1B、 2A和 2B, 下部单向锁定机构 144, 134包括设置在支撑板 130的 下端 131的阻挡突缘 134和设置在移动板 140的外侧 145 (见图 2A) 的受阻 突缘 144, 所述阻挡突缘 134位于所述受阻突缘 144的下方, 并具有与所述 受阻突缘 144形成重叠的部分。 由此, 当移动板 140相对于支撑板 130向下 移动到移动板 140的受阻突缘 144抵靠支撑板 130的阻挡突缘 134时, 支撑 板 130阻止移动板 140继续向下移动, 从而将移动板 140锁定在工作位置。
作为一个示例, 阻挡突缘 134和受阻突缘 144分别由从支撑板 130和移 动板 140向外延伸而出的突出部形成。 受阻突缘 144可以设置在移动板 140 的外侧 145的中部或上端, 受阻突缘 144在移动板 140的外侧 145上的位置 取决于预定的工作台 150的升降距离。
图 3A和 3B分别示出了本申请的压板 120的内侧和外侧立体图。 参见图 1A、 1B、 3A和 3B, 上部锁定机构 142, 122包括设置在压板 120上的牵引边 缘 122和设置在移动板 140 的内侧 141 上的受力突缘 142, 所述牵引边缘 122位于所述受力突缘 142的下方, 并具有与所述受力突缘 142形成重叠的 部分。 由此, 通过移动板 140 的受力突缘 142抵靠在压板 120 的牵引边缘 122 上, 使得移动板 140相对于支撑板 130 的向下和向上移动都能由压板 120的移动来控制。 并且, 当移动板 140被下部单向锁定机构 144, 134锁定 在其工作位置时, 压板 120的继续向下移动会使得其牵引边缘 122脱离移动 板 140的受力突缘 142, 从而释放移动板 140。 之后, 压板 120能够相对于 移动板 140向下移动, 以按压锡膏罐 700, 执行加锡的工作过程。
具体而言, 当推杆 110还未被驱动装置 160驱动向下移动时, 压板 120 被推杆 110固定在其初始位置。 此时, 由于移动板 140的受力突缘 142抵靠 在压板 120的牵引边缘 122上, 使得移动板 140被压板 120固定不动。 只有 当驱动装置 160开始驱动推杆 110 向下移动时, 移动板 140才能随着压板 120一起向下移动, 直至到达移动板 140的工作位置。 在移动板 140被下部 单向锁定机构 144, 134锁定在其工作位置时, 压板 120 能够相对于移动板 140 向下移动, 以执行加锡的工作过程。 在加锡的工作过程结束之后, 当需 要将移动板 140移动离开其工作位置时, 通过将压板 120向上移动到其牵引 边缘 122抵靠移动板 140的受力突缘 142, 可以用压板 120带动移动板 140 向上移动。
作为一个示例, 所述受力突缘 142由从移动板 140向外延伸的突出部形 成, 而所述牵引边缘 122为压板 120的内侧边缘。 受力突缘 142可以设置在 移动板 140的内侧 141的上端。 如图 IB所示, 支撑板 130具有在其上端 132和下端 131之间延伸的第 一滑槽 136。 如图 2B所示, 移动板 140具有设置在其外侧 145上的第一滑块 146。 所述第一滑块 146和第一滑槽 136相配合以将移动板 140可上下滑动 地连接在支撑板 130上。 作为一个示例, 第一滑块 146和第一滑槽 136的横 截面均为梯形, 并且它们的尺寸相匹配, 以使得第一滑块 146能够从第一滑 槽 136上下两端插入第一滑槽 136中, 并且能够沿着第一滑槽 136上下滑动 而不会在横向于第一滑槽 136的方向上从第一滑槽 136中松脱。
如图 2A所示, 移动板 140内侧 141上具有在其上端和下端之间延伸的 第二滑槽 147。 如图 3B所示, 压板 120具有在其牵引边缘 122上的第二滑块 127。 所述第二滑块 127和第二滑槽 147相配合以将压板 120可上下滑动地 连接在移动板 140的内侧 141上。 作为一个示例, 第二滑块 127和第二滑槽 147 的横截面均为梯形, 并且它们的尺寸相匹配, 以使得第二滑块 127 能够 从第二滑槽 147上下两端插入第二滑槽 147中, 并且能够沿着第二滑槽 147 上下滑动而不会在横向于第二滑槽 147的方向上从第二滑槽 147中松脱。
图 4示出了沿图 1A中 A-A线的剖视图。 图 4示出了第一滑块 146、 第一 滑槽 136、 第二滑块 127和第二滑槽 147的横截面, 并且示出了压板 120的 第二滑块 127与移动板 140的第二滑槽 147之间, 以及移动板 140的第一滑 块 146与支撑板 130的第一滑槽 136之间的配合关系。
如图 3B所示, 压板 120在其牵引边缘 122处的厚度大于压板 120其余 部位的厚度。 这样设置是为了使得在牵引边缘 122处的第二滑块 127的厚度 能够设置得较大, 以使得压板 120相对于移动板 140的滑动更为平稳。
图 5示出了本申请的自动加锡膏装置 100的一个工作周期, 其中线 L代 表锡膏印刷机的网板, 自动加锡膏装置 100用于将锡膏罐 700中的锡膏分配 到网板 L上, 图 5 ( a) - (e)分解示出了在自动加锡膏装置 100的一个工作周 期中, 移动板 140和压板 120相对于网板 L在上下方向 (即高度方向)上的 位置变化 (即移动板 140和压板 120的行程) 。 自动加锡膏装置 100的一个 工作周期包括将锡膏罐 700在高度方向上从初始位置移动到工作位置的定位 过程、 加锡的工作过程 (以下简称 "工作过程" )和在高度方向上将锡膏罐 700从工作位置返回到初始位置的过程。 需要说明的是, 图 5 ( a) - (e)并不 表示自动加锡膏装置 100在工作周期中相对于网板 L左右移动, 自动加锡膏 装置 100在一个工作周期中可以相对于网板 L移动, 也可以相对于网板 L被 固定不动。 作为一个示例, 自动加锡膏装置 100在加锡的工作过程中是相对 于网版 L在水平方向上线性移动的, 以在网版 L上从需要加锡膏的初始位置 开始沿直线或曲线分配锡膏, 直至到达网板 L 的需要加锡膏的终止位置。 而 在将锡膏罐 700在高度方向上从初始位置移动到工作位置的定位过程中、 以 及在高度方向上将锡膏罐 700从工作位置返回到初始位置的过程中, 自动加 锡膏装置 100可以不相对于网板 L在水平方向上移动, 也可以相对于网板 L 在水平方向上移动。 作为一个示例, 自动加锡膏装置 100在印刷机中有一个 停放位置, 在开始自动加锡膏装置 100 的工作周期之前, 需要先将自动加锡 膏装置 100从停放位置移动到网板 L的需要加锡膏的起始位置处, 并且在完 成加锡过程之后需要将自动加锡膏装置 100从网板 L的需要加锡膏的终止位 置处移回到停放位置。 作为一个示例, 将锡膏罐 700在高度方向上从初始位 置移动到工作位置的定位过程可以发生在将自动加锡膏装置 100从停放位置 移动到网板 L的需要加锡膏的起始位置处的过程中, 在高度方向上将锡膏罐 700从工作位置返回到初始位置的过程可以发生在将自动加锡膏装置 100从 网板 L的需要加锡膏的终止位置处移动到停放位置的过程中。
在自动加锡膏装置 100的一个工作周期中, 压板 120和移动板 140具有 以下行程: (i)向下朝着移动板 140 的工作位置共同移动的行程, (ii)在到 达移动板 140 的工作位置后向下相对移动的行程, (ii i)在工作过程结束后 向上相对移动的行程, (iv)向上共同移动的行程。 其中, (i)向下朝着移动 板 140的工作位置共同移动的行程实现了将锡膏罐 700在高度方向上从初始 位置移动到工作位置的定位过程, (ii)在到达移动板 140 的工作位置后向 下相对移动的行程实现了加锡的工作过程, 而(i ii)在工作过程结束后向上 相对移动的行程和(iv)向上共同移动的行程实现了在高度方向上将锡膏罐 700从工作位置返回到初始位置的过程。
图 5 ( a)示出了压板 120和移动板 140的初始位置, 在初始位置, 驱动 装置 160还未开始驱动推杆 110向下移动, 因而压板 120被推杆 110固定不 动, 而移动板 140通过上部锁定机构 142, 122被压板 120锁定而不能向下 移动。 图 5 ( b)示出了移动板 140刚刚向下移动到其工作位置, 此时, 移动 板 140被下部单向锁定机构 144, 134锁定而不能继续向下移动。 从图 5 ( a) 到图 5 ( b) 的行程即为压板 120和移动板 140向下朝着工作位置共同移动的 行程。 在该行程中, 上部锁定机构 142, 122仍然锁住移动板 140, 使移动板 140不能向下自由移动, 但能随着推杆 110以及压板 120的向下移动而向下 移动。 因此, 随着驱动装置 160驱动推杆 110向下移动, 移动板 140与压板 120一起随着推杆 110向下移动。 此行程的结束意味着锡膏罐 700的定位过 程结束, 锡膏罐 700被定位在网板 L上方所需的高度处。
图 5 ( c ) 示出了压板 120 正在按压锡膏罐 700。 从图 5 ( b ) 到图 5 ( C) 的行程即为在到达移动板 140 的工作位置后的向下相对移动的行程。 在该行程中, 移动板 140被下部单向锁定机构 144, 134锁定而不能继续向下 移动, 而上部锁定机构 142, 122释放移动板 140, 使得所述压板 120能够相 对于移动板 140 向下移动。 当压板 120相对于移动板 140移动到与锡膏罐 700相接触时, 加锡工作过程开始, 压板 120 的继续向下移动会按压锡膏罐 700, 使得锡膏罐 700与安装在工作台 150上并容纳在锡膏罐 700中的喷嘴 500发生相对移动, 从而将容纳在锡膏罐 700中的锡膏从喷嘴 500中分配到 下方的网板 L上。 此行程的结束意味着压板 120已完成加锡动作, 工作过程 结束
图 5 ( d) 示出了压板 120在工作过程结束后上升至使得上部锁定机构 142, 122 重新锁定移动板 140, 此时的锁定是为了通过压板 120将移动板 140 向上移动回其初始位置 (如图 5 ( e)所示) 。 从图 5 ( c ) 到图 5 ( d) 的行程即为在工作过程结束后, 压板 120和移动板 140的向上相对移动的行 程。 在该行程中, 上部锁定机构 142, 122仍然释放移动板 142, 压板 120相 对于移动板 140向上移动, 直至压板 120的牵引边缘 122抵接移动板 140的 受力突缘 142。
图 5 ( e)示出了移动板 130向上移动回其初始位置。 从图 5 ( d) 到图 5 ( e) 的行程即为压板 120和移动板 140 的向上共同移动的行程。 在该行程 中, 上部锁定机构 142, 122锁住移动板 140, 使得移动板 140随着推杆 110 的向上移动而向上移动。 此行程的结束意味着压板 120和移动板 140回到其 初始位置, 自动加锡膏装置 100的一个工作周期结束。
由于采用了如上介绍的相互配合的支撑板 130、 移动板 140 和压板 120, 本申请的自动加锡膏装置 100仅仅使用一个驱动装置 160就能够实现 将锡膏罐 700移动到网板上方所需高度的定位动作, 以及将锡膏从锡膏罐喷 嘴 500中分配到网板上的加锡动作。 因此, 本申请的自动加锡膏装置 100机 械结构和控制系统简单, 且占用空间不大, 成本较低。
现在返回图 1A和图 1B。 如图 1A和图 1B所示, 本申请还提供了用在自 动加锡膏装置 100 中的用于防止锡膏滴落的装置, 并且本申请还提供了与用 于防止锡膏滴落的装置配合使用的锡膏罐 700。 锡膏为粘性较大的流体, 使 得容纳在锡膏罐 700中的锡膏与锡膏罐 700的壳体 710 (如图 7A所示) 黏在 一起, 并且锡膏具有一定的自重。 当锡膏罐 700开口朝下地通过锡膏喷嘴 500安装在工作台 150上时, 即使压板 120没有按压锡膏罐 700, 锡膏的自 重也会使得锡膏有从锡膏喷嘴 500 中流出来的趋势。 并且由于锡膏与锡膏罐 700的壳体 710黏在一起, 锡膏的自重带动锡膏罐 700相对于容纳在锡膏罐 700中的喷嘴 500向下移动, 而锡膏罐 700相对于喷嘴 500的向下移动会将 锡膏从锡膏罐 700中挤压出来, 这加重了锡膏从喷嘴 500中流出来的趋势。 为此, 本申请提供了所述用于防止锡膏滴落的装置以及所述与用于防止锡膏 滴落的装置配合使用的锡膏罐 700, 以防止锡膏由于自重而从锡膏喷嘴 500 中滴落。
图 6示出了用于防止锡膏滴落的装置中的保持架 180和高度调节装置 190。 如图 6所示, 用于防止锡膏滴落的装置包括保持架 180和高度调节装 置 190, 高度调节装置 190的一端连接在保持架 180上。 作为一个示例, 保 持架 180设有通孔 181, 通孔 181的大小与锡膏罐 700的壳体 710的外径相 匹配。
如图 1A和图 1B所示, 在使用时, 保持架 180处于用于承载锡膏罐 700 的工作台 150的上方, 并通过其通孔 181连接锡膏罐 700的壳体 710。 保持 架 180的一端可滑动地连接在用于支撑工作台 150的工作台支撑装置 (即移 动板 140 ) 上, 以使得保持架 180能够随着锡膏罐 700中锡膏的减少而随着 锡膏罐 700向下移动, 以适应锡膏喷嘴 500和锡膏罐壳体 710的相对位置变 化。 需要说明的是, 虽然在图 1A和图 1B所示的实施例中, 保持架 180所连 接的工作台支撑装置为移动板 140, 但是对于不使用移动板 140 的自动加锡 膏装置而言, 其也可以使用本申请所提供的用于防止锡膏滴落的装置, 此时 工作台支撑装置可以是不移动的部件, 只要该部件用于支撑工作台 150 即 可。 也就是说, 任何自动加锡膏装置, 只要其使用倒置的锡膏罐来加锡, 都 可以使用本申请提供的上述用于防止锡膏滴落的装置, 并且在使用时, 保持 架 180连接在用于支撑锡膏罐工作台的工作台支撑装置上。
仍然如图 1A和 1B所示, 同保持架 180—样, 高度调节装置 190的另一 端也连接在移动板 140上, 用于调节保持架 180相对于移动板 140的高度。 作为一个示例, 高度调节装置 190为发条弹簧, 发条弹簧包括自由端 191和 螺旋卷部 195, 发条弹簧的自由端 191与保持架 180相连, 发条弹簧的螺旋 卷部 195安装在移动板 140上, 移动板 140上设有相应的容纳空间 149 (见 图 2A) 以容纳发条弹簧的螺旋卷部 195。 发条弹簧的弹力应与锡膏罐 700中 容纳的锡膏的重量相匹配。 具体而言, 发条弹簧的弹力不能设置得太大, 以 免将锡膏罐 700从锡膏喷嘴 500上拔下来, 也不能设置得太小, 以免不能向 锡膏罐 700施加足够的拉力以抵消锡膏的自重。 在执行图 5所示的加锡的工 作过程时, 发条弹簧使得保持架 180能够随着锡膏罐 700被按压向下移动而 移动。 高度调节装置 190可以包括两个发条弹簧, 所述两个发条弹簧分别连 接保持架 180的两端。 设置两个发条弹簧能够更加平稳地调节保持架 180相 对于移动板 140的高度。 需要注意的是, 同保持架 180—样, 在自动加锡膏 装置 100不使用移动板 140 的时候, 高度调节装置 190连接至支撑工作台 150的工作台支撑装置上。
如图 6所示, 保持架 180包括位于其一侧的滑块 182。 滑块 182能够与 工作台支撑装置 (如移动板 140) 上设置的滑槽 (如移动板 140 的第二滑槽 147 ) 相配合, 以将保持架 180 可滑动地连接在工作台支撑装置 (如移动板 140) 上。 作为一个示例, 滑块 182和移动板 140上的第二滑槽 147的横截 面为梯形, 并且它们的尺寸相匹配, 以使得滑块 182能够从第二滑槽 147上 下两端插入第二滑槽 147中, 并且能够沿着第二滑槽 147上下滑动而不会在 横向于第二滑槽 147的方向上从第二滑槽 147中松脱。
图 7A和图 7B分别示出了本申请的锡膏罐的立体图和分解图。 如图 7A 和 7B所示, 锡膏罐 700包括壳体 710和盖 720, 壳体 710具有出口 712, 盖 720盖在出口 712上。 在将锡膏装入壳体 710中之后, 盖 720将出口 712封 住, 以将锡膏封存在壳体 710中。
壳体 710的外壁设有卡接装置 750, 当锡膏罐 700被倒置 (即出口 712 向下)地插入保持架 180的通孔 181 中时 (如图 1A所示) , 卡接装置 750 能够与保持架 180 的通孔 181 相配合, 以将锡膏罐 700卡接在保持架 180 中。 作为一个示例, 卡接装置 750为沿着壳体 710外壁的圆周延伸的限位凸 缘。 作为一个示例, 卡接装置 750设置在靠近出口 712的位置, 由此卡接装 置 750能与盖 720配合而将锡膏密封在锡膏罐 700中。
图 8A示出了本申请锡膏罐组件 800的剖视图, 图 8B示出了本申请锡膏 罐组件中的锡膏喷嘴的立体图。 如图 8A所示, 本申请锡膏罐组件 800包括 如图 Ί所示的锡膏罐 700, 容纳在锡膏罐 700中的锡膏、 以及容纳在锡膏罐 700中的锡膏喷嘴 500 (如图 8B所示) 。 锡膏罐组件 800通过锡膏喷嘴 500 安装在工作台 150上 (如图 1A所示) 。
如图 8B所示, 锡膏喷嘴 500具有喷嘴主体 510、 延伸穿过喷嘴主体 510 的喷嘴孔 520、 位于喷嘴主体 510—端的扩大头部 530和位于喷嘴主体 510 另一端的喷嘴口 550。 如图 8A所示, 扩大头部 530的直径与锡膏罐 700的内 径相匹配。 喷嘴主体 510在喷嘴口 550附近的外径可以设置得较小, 以将锡 膏喷嘴 500安装在工作台 150的锡膏通孔 155中 (如图 9B所示) 。
在使用容纳有锡膏的锡膏罐 700形成锡膏罐组件 800时, 首先将锡膏罐 700的盖 720从出口 712上取下来, 然后将锡膏喷嘴 500的扩大头部 530从 锡膏罐 700的出口 712插入壳体 710中。 锡膏罐 700中的出口 712附近并未 装满锡膏, 而是为锡膏喷嘴 500留有安装空间。
当锡膏罐组件 800倒置地安装在工作台 150上以使锡膏罐 700 的开口 712 朝下时, 在锡膏喷嘴 500被工作台 150 固定不动的情况下, 通过压板 120按压锡膏罐 700的底部能够使得锡膏罐 700的壳体 710相对于锡膏喷嘴 500向下移动, 从而将锡膏从锡膏喷嘴 500的喷嘴口 550分配出来。
上述用于防止锡膏滴落的装置与锡膏罐 700相配合, 能够减少由于锡膏 自重而从锡膏喷嘴口 550处滴落或残留在喷嘴口 550处的锡膏的量。
图 8C示出了本申请的用于提供锡膏的组件 (锡膏罐保持组件) 的剖视 图。 如图 8C所示, 本申请的用于提供锡膏的组件包括保持架 180、 高度调节 装置 190和锡膏罐 700等, 用于为自动加锡膏装置提供锡膏。 本申请的用于 提供锡膏的组件利用锡膏罐壳体上的限位凸缘 750与保持架 180 的相互配 合, 在提供锡膏时能够防止锡膏由于自重而滴落, 由此能够提高锡膏的利用 率, 节约成本, 同时也能防止锡膏滴落在不需要的位置, 提高产品的生产效 率。 使用所述用于提供锡膏的组件提供锡膏的方法已经在上面描述, 在此不 再赘述。
图 9A示出了本申请的工作台 150的立体图。 图 9B是图 1A工作台 150 处的部分剖视和放大图, 其示出了工作台 150中的气体通道 900和锡膏通孔 155 的位置关系。 本申请还提供了用于自动清除残留锡膏的装置, 其包括设 置在工作台 150中的气体通道 900 (如图 9A和图 9B所示) 。
如图 9A和图 9B所示, 工作台 150 中设有锡膏通孔 155和气体通道 900, 锡膏通孔 155用于容纳锡膏喷嘴口 550, 气体通道 900用于将清洁气体 源 (未示出) 中的气体朝向容纳在锡膏通孔 155中的锡膏喷嘴口 550引导, 以通过气体切割 (或清除)锡膏喷嘴口 550处残留的锡膏。
具体而言, 工作台 150包括第一较厚部分 157和第二较薄部分 156, 第 二较薄部分 156的底面 156a高于第一较厚部分 157的底面 157a, 从而在第 一较厚部分 157上形成与所述第二较薄部分 156的底面 156a相连接的台阶 面 158。 锡膏通孔 155延伸穿过所述第二较薄部分 156, 气体通道 900设置 在第一较厚部分 157中。 气体通道 900包括气体入口 910和气体出口 920, 气体入口 910与清洁气体源连通, 气体出口 920设置在台阶面 158上, 以将 气体吹向容纳在锡膏通孔 155 中的锡膏喷嘴口 550。 作为一个示例, 气体出 口 920被设置为邻近锡膏通孔 155, 以提高清洁气体的清洁效率。 气体出口 920呈扁平状, 以使从气体出口 920流出的切割气体形成为气 刀。 气体通道 900包括相互连通的第一通道部分 930和第二通道部分 940, 第一通道部分 930通过气体入口 910连接清洁气体源, 第二通道部分 940连 接气体出口 920。 第二通道部分 940比第一通道部分 930细, 使得从第一通 道部分 930流动到第二通道部分 940中的气体被加速, 在气体出口 920处形 成更为锋利的气刀。 此外, 所述清洁气体可以为压缩气体, 以提高气体的流 速, 从而有利于使气刀更加锋利。
上述用于自动清除残留锡膏的装置在加锡工作过程结束之后, 即在压板 120停止挤压锡膏罐 700之后, 立即将锡膏喷嘴口 550残留的锡膏切掉, 切 掉的残留锡膏落在网板上的锡膏所在的位置, 从而防止了在将工作台 150 向 上升高至初始位置的过程中或者将自动加锡膏装置 100整体移动的过程中, 锡膏喷嘴口 550处残留的锡膏随意滴落在网板上不需要分配锡膏的位置。
本说明书使用示例来公开本申请, 其中的一个或多个示例被图示于附图 中。 每个示例都是为了解释本申请而提供, 而不是为了限制本申请。 事实 上, 对于本领域技术人员而言显而易见的是, 不脱离本申请的范围或精神的 情况下可以对本申请可以进行各种修改和变型。 例如, 作为一个实施例的一 部分的图示的或描述的特征可以与另一实施例一起使用, 以得到更进一步的 实施例。 因此, 其意图是本申请涵盖在所附权利要求书及其等同物的范围内 进行的修改和变型。

Claims

权 利 要 求 书
1. 一种用于防止锡膏滴落的装置, 包括:
工作台支撑装置(140) ;
工作台 (150) , 所述工作台 (150) 固定地连接在工作台支撑装置 (140) 的一端, 所述工作台 (150) 用于承载锡膏罐 (700) , 所述锡膏罐 (700) 包括壳体 (710) , 所述壳体 (710) 中容纳锡膏喷嘴 (500) , 所述 锡膏喷嘴 (500) 安装在所述工作台 (150) 上, 从而所述锡膏罐 (700) 通 过所述锡膏喷嘴 (500) 被倒置地承载在所述工作台 (150) 上, 所述壳体 (710) 能够相对于所述锡膏喷嘴 (500) 移动, 以使得所述锡膏罐 (700) 中容纳的锡膏从所述锡膏喷嘴 (500) 中挤出; 以及
保持架 (180) , 所述保持架 (180) 连接所述锡膏罐 (700) 的壳体 (710) , 并处于所述工作台 (150) 的上方, 所述保持架 (180) 可滑动地 连接在所述工作台支撑装置 (140) 上, 以使得所述保持架 (180) 能够随着 所述锡膏罐 (700) 中锡膏的减少而向下移动, 以调节所述锡膏喷嘴 (500) 和所述壳体 (710) 的相对位置。
2. 如权利要求 1 所述的用于防止锡膏滴落的装置, 其特征在于还包 括:
高度调节装置 (190) , 所述高度调节装置 (190) 的一端与所述保持 架 (180) 相连, 所述高度调节装置 (190) 的另一端与所述工作台支撑装置 (140) 相连, 用于调节所述保持架 (180) 相对于所述工作台支撑装置 (140) 的高度。
3. 如权利要求 2所述的用于防止锡膏滴落的装置, 其特征在于: 所述高度调节装置 (190) 为发条弹簧, 所述发条弹簧的自由端
(191) 与所述保持架 (180) 相连, 所述发条弹簧的螺旋卷部 (195) 安装 在所述工作台支撑装置 (140) 上。
4. 如权利要求 3所述的用于防止锡膏滴落的装置, 其特征在于: 所述工作台支撑装置 (140) 上设置有容纳所述发条弹簧的螺旋卷部
(195) 的容纳空间 (149) 。
5. 如权利要求 3所述的用于防止锡膏滴落的装置, 其特征在于: 所述发条弹簧的弹力被配置为与所述锡膏罐 (700) 中容纳的锡膏的重 量相匹配。
6. 如权利要求 3所述的用于防止锡膏滴落的装置, 其特征在于: 所述高度调节装置 (190) 包括两个发条弹簧, 所述两个发条弹簧分别 连接所述保持架 (180) 的两端。
7. 如权利要求 1所述的用于防止锡膏滴落的装置, 其特征在于: 所述保持架 (180) 包括位于其一侧的滑块 (182 ) , 所述工作台支撑 装置 (140 ) 包括位于其一侧的滑槽 (147 ) , 所述滑块 (182 ) 与所述滑槽 ( 147) 相配合, 以将所述保持架 (180 ) 可滑动地连接在所述工作台支撑装 置(140) 上。
8. 如权利要求 7所述的用于防止锡膏滴落的装置, 其特征在于: 所述滑块(182) 与所述滑槽 (147) 的横截面均为梯形。
9. 如权利要求 1所述的用于防止锡膏滴落的装置, 其特征在于: 所述保持架 (180)包括通孔 (181 ) , 所述通孔 (181 ) 的大小与所述 锡膏罐 (700) 的壳体 (710) 的外径相匹配; 以及
所述锡膏罐 (700) 的壳体 (710) 外壁上具有卡接装置 (750) , 所述 保持架 (180) 的通孔 (181 ) 的边缘卡合在所述卡接装置 (750) 下方。
10. 如权利要求 9所述的用于防止锡膏滴落的装置, 其特征在于: 所述卡接装置 (750 ) 为沿着所述壳体 (710 ) 的外壁圆周延伸的限位 凸缘。
11. 如权利要求 9所述的用于防止锡膏滴落的装置, 其特征在于: 所述锡膏罐 (700) 通过在其上方上下移动的压板 (120 ) 被挤压, 从 而使得锡膏能够被从锡膏喷嘴 (500) 中挤出。
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3611020B1 (en) * 2017-04-14 2021-07-07 Illinois Tool Works Inc. Automatic solder paste addition apparatus for solder paste printer
CN113457913B (zh) * 2021-06-08 2023-07-28 湖州创塑新材科技有限公司 一种用于医用口罩生产加工的无纺布可调节点胶装置

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727343A1 (de) * 1987-08-17 1989-03-02 Bosch Gmbh Robert Verfahren zum dosieren der lotmenge bei einer loetvorrichtung
US4942984A (en) * 1988-11-10 1990-07-24 Scm Metal Products, Inc. Dripless solder paste dispenser
SE465713B (sv) * 1990-02-12 1991-10-21 Mydata Automation Ab Anordning foer att utlaegga pastor och lim
JPH03291165A (ja) * 1990-04-04 1991-12-20 Seiko Instr Inc 液体定量吐出装置
US5137181A (en) * 1990-07-18 1992-08-11 Wilhelm A. Keller Manually operated appliance, in particular for a double dispensing cartridge for two-component substances
US5386092A (en) * 1991-11-04 1995-01-31 Unitek Equipment Inc. Fast response weld head
US6082289A (en) * 1995-08-24 2000-07-04 Speedline Technologies, Inc. Liquid dispensing system with controllably movable cartridge
US6267266B1 (en) * 1995-11-16 2001-07-31 Nordson Corporation Non-contact liquid material dispenser having a bellows valve assembly and method for ejecting liquid material onto a substrate
WO2000071264A1 (en) * 1999-05-21 2000-11-30 Matsushita Electric Industrial Co., Ltd. Viscous material applicator
SE0003647D0 (sv) * 2000-10-09 2000-10-09 Mydata Automation Ab Method, apparatus and use
CN1764358A (zh) 2004-10-19 2006-04-26 南京Lg同创彩色显示系统有限责任公司 薄型影像显示装置的高度调节机座
TWI657938B (zh) * 2007-05-18 2019-05-01 日商武藏工業股份有限公司 液體材料之吐出方法及裝置
JP2008296238A (ja) * 2007-05-30 2008-12-11 Fujitsu Ltd 加工装置
JP5043764B2 (ja) * 2008-06-30 2012-10-10 株式会社ジャパンユニックス レーザー式はんだ付け方法及び装置
JP4643719B2 (ja) * 2009-02-09 2011-03-02 ヤマハ発動機株式会社 はんだ供給装置、印刷装置および印刷方法
JP5635879B2 (ja) 2010-11-17 2014-12-03 ヤマハ発動機株式会社 付着材料塗布装置
US9975206B2 (en) * 2011-04-08 2018-05-22 Micronic Mydata AB Composition of solid-containing paste
JP5806868B2 (ja) * 2011-07-11 2015-11-10 武蔵エンジニアリング株式会社 液滴吐出装置および方法
CN102357695B (zh) * 2011-10-19 2014-01-29 黄一淼 金属零部件的高频感应钎焊焊接方法及焊接装置
JP5887488B2 (ja) 2011-12-16 2016-03-16 パナソニックIpマネジメント株式会社 ペースト供給装置およびスクリーン印刷装置
CN202626633U (zh) 2012-05-24 2012-12-26 厦门瑞比精密机械有限公司 一种滴液机机械手防滴落装置
KR20130141926A (ko) * 2012-06-18 2013-12-27 삼성전기주식회사 솔더 페이스트 토출 장치, 이를 포함한 패터닝 시스템 및 그 제어 방법
CN103056478B (zh) 2012-12-26 2016-04-13 美尔森电气保护系统(上海)有限公司 一种熔体上锡机构及上锡方法
JP2014151507A (ja) 2013-02-07 2014-08-25 Panasonic Corp ペースト供給装置、スクリーン印刷機、ペースト供給方法及びスクリーン印刷方法
JP5895134B2 (ja) 2013-06-12 2016-03-30 パナソニックIpマネジメント株式会社 ペースト供給装置、スクリーン印刷機、ペースト供給方法及びスクリーン印刷方法
JP6199988B2 (ja) * 2013-12-05 2017-09-20 富士機械製造株式会社 はんだ供給装置
EP3085484B1 (en) 2013-12-18 2019-01-30 FUJI Corporation Solder supply device
CN106029278B (zh) * 2014-02-26 2018-11-16 株式会社富士 焊料供给系统
JP6353520B2 (ja) 2014-02-27 2018-07-04 株式会社Fuji はんだ供給装置、およびはんだ供給方法
US10703089B2 (en) * 2015-04-07 2020-07-07 Illinois Tool Works Inc. Edge lock assembly for a stencil printer
CN205705695U (zh) 2016-05-04 2016-11-23 依工电子设备(苏州)有限公司 具有自清洁功能的加锡膏装置
CN205668436U (zh) 2016-06-08 2016-11-02 深圳市捷汇多科技有限公司 锡膏自动添加装置
CN206065611U (zh) 2016-09-27 2017-04-05 深圳市三捷机械设备有限公司 一种自动添加锡膏装置
US20190174633A1 (en) * 2017-12-05 2019-06-06 Illinois Tool Works Inc. Material temperature sensor for stencil printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

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US11084114B2 (en) 2021-08-10
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