CN113710003A - Sandwich is tin cream printing device for SMT technology - Google Patents
Sandwich is tin cream printing device for SMT technology Download PDFInfo
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- CN113710003A CN113710003A CN202110968223.7A CN202110968223A CN113710003A CN 113710003 A CN113710003 A CN 113710003A CN 202110968223 A CN202110968223 A CN 202110968223A CN 113710003 A CN113710003 A CN 113710003A
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- fixedly connected
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- steel mesh
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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
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
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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
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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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
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- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
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Abstract
The invention relates to the technical field of solder paste printing machines, in particular to a solder paste printing device for a sandwich SMT (surface mount technology), which comprises a printing machine body, wherein a steel mesh clamping module and a coating module are installed at the top end of the printing machine body, the top surface of the printing machine body is fixedly connected with a fixing mechanism, the fixing mechanism comprises a linear conveying rail, and a moving end of the linear conveying rail is fixedly connected with a fixing piece. According to the invention, through the arrangement of the lower clamp, the support barrel supports the plate, so that the element on the bottom surface of the plate is not in contact with the bearing plate, the element is prevented from being extruded during printing, through the arrangement of the support column, the extrusion spring and the reset spring, the steel mesh extrudes the support column to move downwards and is attached to the top surface of the plate, the extrusion spring extrudes the plate through the upper clamp to enable the plate to be extruded and attached to the steel mesh, the printing of the plates with different thicknesses is realized, the descending distance of the steel mesh clamping module is fixed when the plates with different thicknesses are printed, frequent adjustment is not needed, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of solder paste printing machines, in particular to a solder paste printing device for a sandwich SMT (surface mount technology) process.
Background
The sandwich SMT process is a process of independently mounting and pasting elements on a plurality of PCBs (printed Circuit Board), then overlaying and welding the PCBs together through the SMT process, one is a daughter board for mounting and pasting the elements, the other is an adapter board, the daughter board and the mainboard are firstly mounted and pasted with the elements, the daughter board is firstly assembled in the adapter board through the SMT mounting process, then a module formed by combining the daughter board and the adapter board is mounted and pasted in the mainboard again, the three boards have the characteristics of identical external contour and positioning hole positions and the like, and solder paste printing needs to be successively completed on the front and back surfaces of the three boards.
The existing solder paste printing device directly places plates on a bearing table board when the plates are printed, the elements are easily crushed when one surface of the plate with the elements attached to the other surface of the plate is printed, and the plates with different thicknesses are difficult to print, so that the moving parameters of a steel mesh clamp and a coating head need to be respectively adjusted when the daughter boards, the adapter plates and the mainboard are printed, the use is inconvenient, and the printing efficiency is low.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a solder paste printing device for a sandwich SMT process, wherein one surface of a circuit board, to which a component is attached, faces downwards through the arrangement of a lower clamp, mounting holes in the board are aligned with supporting columns in an upper clamp one by one, the board is placed on the upper clamp, the top ends of the supporting columns penetrate through the mounting holes of the board to limit the board, the top of a supporting cylinder supports the board, the component on the bottom surface of the board is not contacted with the supporting plate once through the supporting cylinder, the component is prevented from being extruded during printing, through the arrangement of the supporting columns, an extrusion spring and a return spring, a steel mesh extrudes the supporting columns to move downwards and is attached to the top surface of the board, the extrusion spring extrudes the board through the upper clamp to be attached to a steel mesh, so that the printing of the boards with different thicknesses is realized, and the descending distances of steel mesh clamping modules are fixed when the boards with different thicknesses are printed, frequent adjustment is not needed, and the efficiency is improved.
The purpose of the invention can be realized by the following technical scheme:
a tin paste printing device for a sandwich SMT process comprises a printing machine body, wherein a steel mesh clamping module and a coating module are installed at the top end of the printing machine body, a fixing mechanism is fixedly connected to the top surface of the printing machine body and comprises a linear conveying rail, a fixing part is fixedly connected to the moving end of the linear conveying rail, sliding rods are fixedly connected to two ends of the inner side wall of the fixing part, an extrusion spring is slidably connected to the outer side wall of the bottom end of each sliding rod, a connecting module is slidably connected to the top end of each sliding rod, an upper clamp is detachably and fixedly connected between the two connecting modules and comprises a first bearing plate, a plurality of supporting modules are arranged on the top surface of the first bearing plate and comprise supporting cylinders, the bottom ends of the supporting cylinders penetrate through the bearing plates and are fixedly connected with the first bearing plate, supporting columns are slidably connected to the inner walls of the supporting cylinders, and reset springs are slidably connected between the inner walls of the supporting cylinders and the outer side walls of the supporting columns, the mounting holes on the plate are aligned with the support columns on the upper clamp one by one, the plate is placed on the upper clamp, the top ends of the support columns penetrate through the mounting holes of the plate to limit the plate, the top of the support cylinder supports the plate, the support cylinders support the plate to prevent elements on the bottom surface of the plate from contacting with the bearing plate, the linear conveying track drives the fixing piece and the upper clamp to move to the lower part of the coating module, the steel mesh clamping module moves downwards to drive the steel mesh to move downwards, the steel mesh moves downwards to contact with the top ends of the plurality of support columns and extrude the support columns to overcome the reset springs to move downwards, the bottom ends of the support columns penetrate through the bottom ends of the support cylinders to move to the lower part of the support cylinders, the steel mesh is in fit contact with the top surface of the plate, and the steel mesh continues to extrude the plate to enable the upper clamp and the connecting module to overcome the elasticity of the extrusion springs to move downwards along the slide rods, steel mesh centre gripping module stops to remove, the coating module prints the tin cream through the hourglass pore pair plate top surface on the steel mesh, the realization pastes the panel another side printing tin cream that has the component to the one side, through the extrusion spring, the setting of reset spring and support column, make steel mesh extrusion support column move down and paste with the panel top surface, the extrusion spring makes it paste with the steel mesh extrusion through last anchor clamps extrusion panel and pastes, the realization is printed the panel of different thickness, thereby better adaptation deals with the daughter board, the tin cream printing of keysets and mainboard, need not frequent debugging and the down distance of switching the steel mesh, reduce repetitive operation.
Further, the method comprises the following steps: the utility model discloses a bearing plate, including connecting module, slide bar, bearing plate one, fixed ear, connecting module include one end and slide bar lateral wall sliding connection's connecting piece, the other end top surface of connecting piece has linked firmly the screw thread post, and the top of screw thread post closes soon and is connected with the internal thread knob, a lateral wall both ends of bearing plate one have all linked firmly fixed ear, fixed ear one end cup joints with the screw thread post that corresponds the side, when installing anchor clamps, cup joints two fixed ears respectively on two screw thread posts to screw the internal thread knob on the screw thread post, press from both sides the fastening and decide fixed ear through internal thread knob and connecting piece, the dismouting of anchor clamps and connecting module is convenient for more change anchor clamps.
Further, the method comprises the following steps: the one end bottom surface of connecting piece has linked firmly the sliding sleeve, and the sliding sleeve cup joints with corresponding the slide bar slip, increases the gliding stability of connecting piece on the slide bar, increases the ascending pressure of extrusion spring to the connecting piece simultaneously.
Further, the method comprises the following steps: go up the supporting anchor clamps that are provided with down of anchor clamps, lower anchor clamps include loading board two, and loading board two can dismantle with printing machine body top surface and link firmly, the top surface of loading board two links firmly a plurality of and support the post of accepting of module one-to-one, and convenient change anchor clamps down, the steel mesh extrudees the support column downwards for the support column moves down, the bottom of support column and the post contact of accepting on the anchor clamps down, make the post of accepting support a plurality of support columns on to last anchor clamps support, thereby it is spacing to a plurality of support columns, reduce the pressure that loading board one receives, correct the bending that loading board one was done here, avoid going up anchor clamps deformation influence printing under the action of gravity.
Further, the method comprises the following steps: the bottom of a support section of thick bamboo is seted up with the round hole, and the round hole is used for the support column bottom to pass, makes things convenient for the bottom of support column to pass a support section of thick bamboo and accept the post contact.
Further, the method comprises the following steps: the height sum of the internal thread knob and the fixing lugs is smaller than the height of the supporting cylinder, and the connecting module where the internal thread knob is located and the upper clamp synchronously move up and down, so that the bottom end of the internal thread knob is lower than the top end of the supporting cylinder, contact interference between the internal thread knob and a steel mesh is avoided, and the steel mesh and the plate are convenient to fit.
Further, the method comprises the following steps: the height of support column is greater than the height of a support section of thick bamboo for when support column top is pegged graft to the plate, the support column bottom passes the bottom of a support section of thick bamboo, with accept the post contact extrusion, avoid a support section of thick bamboo and accept the post contact, thereby directly extrude panel, lead to the panel damaged.
Further, the method comprises the following steps: the recess that agrees with the support column bottom is seted up on the top of holding post, the profile is the round platform shape in the recess, it is narrow down to go up wide, when the support column moves down, the support column bottom inserts in the recess of holding post bottom top, thereby carry out the joint to the support column, increase the joint to last anchor clamps, make when the printing, it keeps firm state with panel to go up anchor clamps, the profile is the round platform shape in the recess simultaneously, it is narrow down to go up wide, make the support column after inserting the recess, the recess inside wall extrudees the support column, thereby carry out accurate adjustment and location to the position of last anchor clamps and panel, thereby reduce the relative skew between steel mesh and the panel, increase the accuracy nature of printing.
The invention has the beneficial effects that:
1. through the arrangement of the lower clamp, a plurality of supporting modules are arranged on the top surface of the first bearing plate, the bottom end of the supporting cylinder penetrates through the bearing plate and is fixedly connected with the first bearing plate, the supporting column is connected with the inner wall of the supporting cylinder in a sliding mode, a reset spring is connected between the inner wall of the supporting cylinder and the outer side wall of the supporting column in a sliding mode, one surface, attached with an element, of the circuit board is downward, mounting holes in the board are aligned with the supporting columns in the upper clamp one by one, the board is placed on the upper clamp, the top end of the supporting column penetrates through the mounting holes in the board to limit the board, the top of the supporting cylinder supports the board, the element on the bottom surface of the board is enabled not to be in contact with the first bearing plate through the supporting of the supporting cylinder, the linear conveying track moves through the board, the tin paste can be conveniently printed on the board with the element attached to one surface, and the damage of the element caused by extrusion is avoided;
2. through the arrangement of the supporting columns, the extrusion springs and the reset springs, the plate is placed on the upper clamp, the top ends of the supporting columns penetrate through the mounting holes of the plate to limit the plate, the top surface of the supporting cylinder supports the plate, the steel mesh moves downwards to be contacted with the top ends of the plurality of supporting columns and extrudes the supporting columns to overcome the reset springs to move downwards, the bottom ends of the supporting columns penetrate through the bottom ends of the supporting cylinders to move to the lower part of the supporting cylinder, the steel mesh is in laminating contact with the top surface of the plate, the steel mesh continues to move downwards to extrude the plate so that the upper clamp together with the connecting module moves downwards along the sliding rods to overcome the elasticity of the extrusion springs so that the steel mesh extrudes the supporting columns to move downwards to be attached to the top surface of the plate, the extrusion springs extrude the plate to be attached to the steel mesh through the upper clamp, the printing of the plates with different thicknesses is realized, the descending distances of the steel mesh clamping modules are fixed when the plates with different thicknesses are printed, and frequent adjustment is not needed, the efficiency is improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall front view structure of the present invention;
FIG. 3 is a schematic view of the fixing mechanism of the present invention;
FIG. 4 is a schematic view of the upper and lower clamps of the present invention;
FIG. 5 is a schematic view of the structure of the connection module of the present invention;
FIG. 6 is a schematic view of the internal structure of the support module of the present invention;
FIG. 7 is a schematic view of the structure of the present invention showing the contact state between the support column and the receiving column;
FIG. 8 is a cross-sectional view of the receiving post of the present invention.
In the figure: 100. a printer body; 110. a steel mesh clamping module; 120. a coating module; 200. a fixing mechanism; 210. a linear conveying track; 220. a fixing member; 221. a slide bar; 222. a compression spring; 230. a connection module; 231. a connecting member; 232. a sliding sleeve; 233. a threaded post; 234. an internal threaded knob; 300. an upper clamp; 310. a first bearing plate; 311. fixing the ear; 320. a support module; 321. a support cylinder; 322. a support pillar; 323. a return spring; 400. a lower clamp; 410. a second bearing plate; 420. a support post.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a solder paste printing apparatus for sandwich SMT process includes a printing machine body 100, a steel mesh clamping module 110 and a coating module 120 are installed at the top end of the printing machine body 100, a fixing mechanism 200 is fixedly connected to the top surface of the printing machine body 100, the fixing mechanism 200 includes a linear conveying track 210, a fixing member 220 is fixedly connected to a moving end of the linear conveying track 210, slide bars 221 are fixedly connected to both ends of an inner side wall of the fixing member 220, an extrusion spring 222 is slidably connected to an outer side wall at the bottom end of each slide bar 221, a connecting module 230 is slidably connected to the top end of each slide bar 221, an upper clamp 300 is detachably and fixedly connected between the two connecting modules 230, the upper clamp 300 includes a first bearing plate 310, a plurality of supporting modules 320 are installed on the top surface of the first bearing plate 310, each supporting module 320 includes a supporting cylinder 321, the bottom end of each supporting cylinder 321 penetrates through the first bearing plate 310 and is fixedly connected to the first bearing plate 310, the inner wall of the supporting cylinder 321 is slidably connected with supporting columns 322, a return spring 323 is slidably connected between the inner wall of the supporting cylinder 321 and the outer side wall of the supporting column 322, the mounting holes on the plates are aligned with the supporting columns 322 on the upper clamp 300 one by one, the plates are placed on the upper clamp 300, the top ends of the supporting columns 322 penetrate through the mounting holes of the plates to limit the plates, the top surfaces of the supporting cylinders 321 support the plates, the plates are supported by the supporting cylinders 321, elements on the bottom surfaces of the plates are not contacted with the first bearing plate 310, the linear conveying track 210 drives the fixing piece 220 and the upper clamp 300 to move to the position below the coating module 120, the steel mesh clamping module 110 moves downwards to drive the steel mesh to move downwards, the steel mesh moves downwards to contact with the top ends of the plurality of supporting columns 322 and extrudes the supporting columns 322 to overcome the return spring 323 and move downwards, the bottom ends of the supporting columns 322 penetrate through the bottom ends of the supporting cylinders 321 to move to the position below the supporting cylinders 321, the steel mesh contacts with the laminating of plate top surface, the steel mesh continues to move down and extrudes the plate and makes go up anchor clamps 300 and move down along the elasticity that slide bar 221 overcome extrusion spring 222 together with connection module 230, steel mesh centre gripping module 110 stops to remove, coating module 120 prints the tin cream through the hourglass hole on the steel mesh to the plate top surface, the realization is pasted the panel another side printing tin cream that has the component to one side, through extrusion spring 222, reset spring 323 and support column 322's setting, make steel mesh extrusion support column 322 move down and paste with the panel top surface, extrusion spring 222 extrudees panel through last anchor clamps 300 and makes it paste with the steel mesh extrusion, the realization is printed the panel of different thickness.
The connection module 230 comprises a connection member 231 with one end slidably connected with the outer side wall of the sliding rod 221, the top surface of the other end of the connection member 231 is fixedly connected with a threaded column 233, the top end of the threaded column 233 is screwed and connected with an internal threaded knob 234, both ends of one side wall of the first bearing plate 310 are fixedly connected with fixing lugs 311, one end of each fixing lug 311 is sleeved and connected with the corresponding threaded column 233, when the clamp 300 is installed, the two fixing lugs 311 are respectively sleeved on the two threaded columns 233, the internal thread knob 234 is screwed on the threaded columns 233, the fixing lug 311 is clamped and fixed by the internal thread knob 234 and the connecting piece 231, so that the upper clamp 300 and the connecting module 230 can be conveniently disassembled and assembled, the upper clamp 300 can be conveniently replaced, the bottom surface of one end of the connecting piece 231 is fixedly connected with the sliding sleeve 232, and the sliding sleeve 232 is slidably sleeved with the corresponding sliding rod 221, so that the sliding stability of the connecting piece 231 on the sliding rod 221 is increased, and meanwhile, the upward pressure of the extrusion spring 222 on the connecting piece 231 is increased.
The upper clamp 300 is provided with a lower clamp 400 in a matching way, the lower clamp 400 comprises a second bearing plate 410, the second bearing plate 410 is detachably and fixedly connected with the top surface of the printer body 100, the top surface of the second bearing plate 410 is fixedly connected with a plurality of receiving posts 420 which are in one-to-one correspondence with the support modules 320, the lower clamp 400 is convenient to replace, the support posts 322 are downwards extruded by a steel mesh, so that the supporting posts 322 move downwards, the bottom ends of the supporting posts 322 contact with the receiving posts 420 on the lower fixture 400, so that the receiving posts 420 support the supporting posts 322 on the upper fixture 300, thereby limiting the plurality of supporting columns 322, reducing the pressure on the first bearing plate 310, correcting the bending of the first bearing plate 310, avoiding the deformation of the upper clamp 300 under the action of gravity from affecting the printing, arranging round holes at the bottom end of the supporting cylinder 321, and the round hole is used for the bottom end of the supporting column 322 to pass through, so that the bottom end of the supporting column 322 can conveniently pass through the supporting cylinder 321 to be contacted with the bearing column 420.
The sum of the heights of the internal thread knob 234 and the fixing lug 311 is less than the height of the supporting cylinder 321, so that the bottom end of the internal thread knob 234 is lower than the top end of the supporting cylinder 321, the connecting module 230 where the internal thread knob 234 is located moves up and down synchronously with the upper clamp 300, thereby avoiding the internal thread knob 234 from contacting and interfering with a steel mesh, facilitating the steel mesh to be attached to a plate, the height of the supporting cylinder 322 is greater than the height of the supporting cylinder 321, so that the bottom end of the supporting cylinder 322 passes through the bottom end of the supporting cylinder 321 when the top end of the supporting cylinder 322 is plugged into a plate, and contacts and extrudes with the receiving cylinder 420, thereby avoiding the supporting cylinder 321 from contacting with the receiving cylinder 420, so as to directly extrude the plate and cause the plate to be damaged, the top end of the receiving cylinder 420 is provided with a groove matched with the bottom end of the supporting cylinder 322, the inner contour of the groove is in a circular truncated cone shape, the upper width is narrow, when the supporting cylinder 322 moves downwards, the bottom end of the supporting cylinder 322 is inserted into the groove at the top end of the bottom end of the receiving cylinder 420, thereby carry out the joint to support column 322, increase the joint to last anchor clamps 300, make when the printing, go up anchor clamps 300 and panel and keep firm state, the profile is round platform shape in the recess simultaneously, it is narrow down to go up the width, make support column 322 after inserting the recess, the recess inside wall extrudees support column 322, thereby carry out accurate adjustment and location to the position of going up anchor clamps 300 and panel, thereby reduce the relative skew between steel mesh and the panel, increase the accuracy nature of printing.
The elastic strength of the pressing spring 222 is greater than the sum of the elastic strengths of the plurality of return springs 323, so that when the steel net contacts only the pressing support column 322, the first bearing plate 310 and the support cylinder 321 are sufficient to resist the reaction force of the return springs 323 under the elastic force of the pressing spring 222, and thus remain stationary.
The working principle is as follows: when the device is used, one surface of a circuit board, which is adhered with components, faces downwards, mounting holes in the board are aligned with support columns 322 on an upper clamp 300 one by one, the board is placed on the upper clamp 300, the top ends of the support columns 322 penetrate through the mounting holes of the board to limit the board, the top surfaces of the support cylinders 321 support the board, the components on the bottom surfaces of the board are not contacted with a first bearing plate 310 through the support of the support cylinders 321, a linear conveying rail 210 moves the board to the lower side of a coating module 120 by driving a fixing part 220 and the upper clamp 300 to move, a steel mesh clamping module 110 moves downwards to drive a steel mesh to move downwards, the steel mesh moves downwards to contact with the top ends of a plurality of support columns 322 and press the support columns 322 to overcome a reset spring 323 to move downwards, the bottom ends of the support columns 322 penetrate through the bottom ends of the support cylinders 321 to move to the lower side of the support cylinders 321, the steel mesh is adhered to the top surfaces of the board, the steel mesh continues to move downwards to press the board, so that the upper clamp 300 and a connecting module 230 move downwards along a sliding rod 221 to overcome the elasticity of a pressing spring 222, finally, the bottom end of the supporting column 322 contacts with the bearing column 420 on the lower clamp 400, the steel mesh clamping module 110 stops moving, the coating module 120 prints solder paste on the top surface of the plate through the holes on the steel mesh, the steel mesh clamping module 110 moves upwards to drive the steel mesh to reset and be separated from the plate, the upper clamp 300 and the supporting column 322 reset under the action of the extrusion spring 222 and the reset spring 323 respectively, the linear conveying track 210 drives the upper clamp 300 and the plate to move to the other end of the linear conveying track 210, so that the plate can be conveniently taken by taking equipment in the next process, after the plate is dismounted, the linear conveying track 210 drives the idle upper clamp 300 to return to one end of the linear conveying track 210, so that the plate can be conveniently reloaded, the solder paste can be printed on the other surface of the plate with the element attached to one surface, and the steel mesh extrudes the supporting column 322 to move downwards and attach to the top surface of the plate through the arrangement of the extrusion spring 222, the reset spring 323 and the supporting column 322, extrusion spring 222 makes it and the steel mesh extrusion paste through last anchor clamps 300 extrusion panel, realizes printing the panel of different thickness, and steel mesh extrusion support column 322 makes support column 322 bottom and accepts post 420 contact, realizes that the down distance of steel mesh centre gripping module 110 is all fixed when printing the panel of different thickness, need not frequent regulation, raises the efficiency.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (8)
1. The solder paste printing device for the sandwich SMT process is characterized by comprising a printing machine body (100), wherein a steel mesh clamping module (110) and a coating module (120) are installed at the top end of the printing machine body (100), a fixing mechanism (200) is fixedly connected to the top surface of the printing machine body (100), the fixing mechanism (200) comprises a linear conveying track (210), a fixing piece (220) is fixedly connected to a moving end of the linear conveying track (210), sliding rods (221) are fixedly connected to two ends of the inner side wall of the fixing piece (220), an extrusion spring (222) is slidably connected to the outer side wall of the bottom end of each sliding rod (221), a connecting module (230) is slidably connected to the top end of each sliding rod (221), an upper clamp (300) is detachably and fixedly connected between the two connecting modules (230), each upper clamp (300) comprises a first bearing plate (310), and a plurality of supporting modules (320) are arranged on the top surface of the first bearing plate (310), the supporting module (320) comprises a supporting cylinder (321), the bottom end of the supporting cylinder (321) penetrates through the first bearing plate (310) and is fixedly connected with the first bearing plate (310), the inner wall of the supporting cylinder (321) is slidably connected with a supporting column (322), and a reset spring (323) is slidably connected between the inner wall of the supporting cylinder (321) and the outer side wall of the supporting column (322).
2. The solder paste printing device for the sandwich SMT process according to claim 1, wherein the connection module (230) comprises a connection member (231) having one end slidably connected to an outer side wall of the sliding rod (221), the other end of the connection member (231) has a threaded post (233) fixedly connected to a top surface thereof, the threaded post (233) has an internally threaded knob (234) rotatably connected to a top end thereof, both ends of a side wall of the first bearing plate (310) have fixing lugs (311) fixedly connected thereto, and one end of each fixing lug (311) is sleeved to the corresponding threaded post (233).
3. The solder paste printing device for sandwich SMT according to claim 2, wherein a sliding sleeve (232) is fixedly connected to a bottom surface of one end of the connecting member (231), and the sliding sleeve (232) is slidably sleeved with the corresponding sliding rod (221).
4. The solder paste printing device for the sandwich SMT process according to claim 1, wherein the upper fixture (300) is provided with a lower fixture (400) in a matching manner, the lower fixture (400) comprises a second bearing plate (410), the second bearing plate (410) is detachably and fixedly connected with the top surface of the printer body (100), and the top surface of the second bearing plate (410) is fixedly connected with a plurality of bearing columns (420) which correspond to the support modules (320) in a one-to-one manner.
5. The solder paste printing device for sandwich SMT according to claim 1, wherein the bottom end of the supporting cylinder (321) is formed with a circular hole, and the circular hole is used for the bottom end of the supporting column (322) to pass through.
6. The solder paste printing apparatus for sandwich SMT according to claim 3, wherein the sum of the heights of the internal screw knob (234) and the fixing lug (311) is less than the height of the supporting cylinder (321).
7. The solder paste printing apparatus for sandwich SMT according to claim 1, wherein the height of the supporting posts (322) is greater than the height of the supporting barrel (321).
8. The solder paste printing apparatus for sandwich SMT process according to claim 4, wherein the top end of the receiving post (420) is formed with a groove engaged with the bottom end of the supporting post (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110968223.7A CN113710003B (en) | 2021-08-23 | 2021-08-23 | Sandwich is tin cream printing device for SMT technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110968223.7A CN113710003B (en) | 2021-08-23 | 2021-08-23 | Sandwich is tin cream printing device for SMT technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113710003A true CN113710003A (en) | 2021-11-26 |
| CN113710003B CN113710003B (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110968223.7A Active CN113710003B (en) | 2021-08-23 | 2021-08-23 | Sandwich is tin cream printing device for SMT technology |
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| CN213094584U (en) * | 2020-08-04 | 2021-04-30 | 徐州支点科技有限公司 | SMT frock carrier |
| CN213718484U (en) * | 2020-12-16 | 2021-07-16 | 北京智造空间科技有限公司 | PCB board location structure |
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| CN206623510U (en) * | 2017-03-24 | 2017-11-10 | 合肥明韩电子有限公司 | A kind of screen printing table for circuit board surface package technique |
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| CN212658745U (en) * | 2020-07-28 | 2021-03-05 | 东莞市德隆科技有限公司 | Upper and lower die alignment structure of PCB open-short circuit test fixture |
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| CN113710003B (en) | 2023-01-13 |
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