CN111804798A - Lead frame area draw gear of chip pin - Google Patents
Lead frame area draw gear of chip pin Download PDFInfo
- Publication number
- CN111804798A CN111804798A CN202010636416.8A CN202010636416A CN111804798A CN 111804798 A CN111804798 A CN 111804798A CN 202010636416 A CN202010636416 A CN 202010636416A CN 111804798 A CN111804798 A CN 111804798A
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- CN
- China
- Prior art keywords
- fixed
- block
- groove
- movable
- trough
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
Abstract
The invention discloses a lead frame belt traction device of a chip pin, which comprises a fixed material groove and a movable material groove, wherein a plurality of material pressing rods are inserted in the movable material groove, a retainer ring is formed on each material pressing rod, a pressure spring is inserted and sleeved on each material pressing rod, two ends of each pressure spring are respectively abutted against the upper end surfaces of the retainer ring and the movable material groove, a T-shaped driving block is arranged between the material pressing rods, two ends of each driving block are inserted and sleeved on the material pressing rods on the upper side of the retainer ring, an insertion groove is formed in the middle of each driving block, a lifting block is fixed on the bottom surface of the upper side of the insertion groove, an upper inclined surface is formed at the bottom of the lifting block, an iron layer is arranged on the upper inclined surface, a pushing block abutted against the bottom surface of the lower side of the insertion groove is inserted in the insertion groove, a lower inclined surface is formed at the top of the pushing block, the baffle is fixed on the movable trough. The invention has simple structure and is convenient for the lead frame belt to realize stepping movement.
Description
Technical Field
The invention relates to the technical field of chip packaging devices, in particular to a lead frame belt traction device for chip pins.
Background
The current chip packaging process comprises chip pasting, silver paste curing, lead welding, optical inspection, injection molding, laser typing, high-temperature curing, flash removal, electroplating annealing, rib cutting and forming and the like. The rib cutting forming is that an independent chip is cut from a lead frame, a lead can be folded to be in a required shape, the rib cutting forming is generally realized through a stamping die, the chip to be subjected to the rib cutting forming is arranged in the strip-shaped lead frame at present, the stamping die adopts an upper stamping mode and a lower stamping mode, the chip of a next unit can be moved into the stamping die only by the step-by-step movement of a lead frame after one-time stamping is completed, and therefore a step-by-step traction device is required to be arranged on packaging equipment subjected to the rib cutting forming.
In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a new lead frame with lead frame pulling device with new structure for chip leads, so that the device has more industrial application value.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a lead frame belt traction device of a chip pin, which has a simple structure and is convenient for a lead frame belt to realize stepping movement.
The invention relates to a lead frame belt traction device of a chip pin, which comprises a fixed material groove and a movable material groove, wherein conveying grooves are formed in the fixed material groove and the movable material groove, the movable material groove can move relative to the fixed material groove, a plurality of material pressing rods are inserted in the movable material groove, the lower ends of the material pressing rods extend into the conveying grooves of the movable material groove, retaining rings are formed on the material pressing rods, pressure springs are inserted in the material pressing rods, two ends of each pressure spring are respectively abutted against the upper end surfaces of the retaining rings and the movable material groove, a T-shaped driving block is arranged between the material pressing rods, two ends of each driving block are inserted in the material pressing rods on the upper sides of the retaining rings, inserting grooves penetrating through the front side wall and the rear side wall of each driving block are formed in the middle of the driving blocks, lifting blocks respectively close to the retaining rings on two sides are fixed on the bottom surfaces of the upper sides of the inserting grooves, the slot is internally inserted with a pushing block which is abutted against the bottom surface of the lower side of the slot, the top of the pushing block is formed into a lower inclined surface, the lifting block vertically corresponds to the pushing block, the lower inclined surface is parallel to the upper inclined surface, an electromagnet matched with an iron layer is arranged on the lower inclined surface, the pushing block is fixed on a piston rod of a traction cylinder, the traction cylinder is fixed on a fixed material groove, the piston rod of the traction cylinder is inserted on a baffle plate, the baffle plate is fixed on a movable material groove, and a vertical stop block matched with the baffle plate and a driving block is formed at the upper end of the rear side of the pushing block between the baffle plate and the driving block.
When the automatic feeding device is used, the lead frame belt is inserted into the conveying groove of the fixed material groove from one side of the fixed material groove and then inserted into the conveying groove of the movable material groove, the traction cylinder is started and the electromagnet is electrified, the piston rod of the traction cylinder realizes that the pushing block moves forwards, the lower inclined surface on the pushing block moves in a manner of being matched with the upper inclined surface on the lifting block, the electromagnet attracts the iron layer to enable the lifting block to move downwards, the lifting block drives the driving block and the pressing rod to move downwards, the pressure spring compresses and stores elastic potential energy, the lower end of the pressing rod moves downwards to press and hold the lead frame belt in the conveying groove, the lead frame belt is clamped in the movable material groove, the pushing block drives the movable material groove to move forwards along with the forward movement of the pushing block, and the lead frame belt is pulled out of the fixed material groove to move; when resetting, earlier with the electro-magnet outage, the elevator separates with the promotion piece under the effect of pressure spring release elastic potential energy, realizes pressing the material pole to reset, pulls the piston rod of cylinder simultaneously and resets, drives and promotes the piece and resets, and when the dog that promotes the piece supported and leans on the baffle, can drive the movable trough and reset.
Through the scheme, the lead frame band traction device for the chip pins is simple in structure and convenient for the lead frame band to realize stepping movement.
Preferably, the left side wall and the right side wall of the fixed material groove are fixed with T-shaped guide sleeves, the left side wall and the right side wall of the movable material groove are fixed with square guide rods, one side of each guide rod is inserted into the corresponding guide sleeve, the upper side and the lower side of each guide sleeve are molded with limit strips, and the guide rods abut against the limit strips.
Preferably, the front end of the pushing block is inserted into the slot, and the rear end of the pushing block extends out of the driving block.
Preferably, the traction cylinder is fixed on an L-shaped mounting plate, the mounting plate is fixed on the upper end face of the fixed trough, a jack communicated with a conveying trough of the fixed trough is formed in the mounting plate, a pressing plate is arranged on the upper side of the jack, an L-shaped cylinder support plate is fixed on the mounting plate, a material pressing cylinder is fixed on the cylinder support plate, and the pressing plate is fixed on a piston rod of the material pressing cylinder. According to the scheme, during resetting, the material pressing cylinder is started firstly, the pressing plate is used for pressing and holding the lead frame in the conveying groove of the material fixing groove, and then the material pressing rod and the material moving groove are driven to reset.
Preferably, a fixing groove is formed in the rear side wall of the pushing block, a fixing block is formed on a piston rod of the traction cylinder, and the fixing block is inserted and fixed in the fixing groove.
Preferably, the upper end of the material pressing rod abuts against an Jiong-shaped bracket, and two ends of the bracket are fixed on the upper end surface of the movable trough.
Preferably, the driving block is pressed against a retaining ring, and the retaining ring is annular.
Preferably, the length and the width of the conveying grooves in the fixed material groove and the movable material groove are equal, and the lower end surfaces of the conveying grooves in the fixed material groove and the movable material groove are located on the same plane.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a partial sectional structural view of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The following refers to fig. 1 to 3.
The invention relates to a lead frame belt traction device for chip pins, which comprises a fixed material groove 1 and a movable material groove 2, wherein conveying grooves 12 are formed in the fixed material groove and the movable material groove, the lengths and the widths of the conveying grooves in the fixed material groove and the movable material groove are respectively equal, the lower end surfaces of the conveying grooves in the fixed material groove and the movable material groove are positioned on the same plane, the movable material groove is movable relative to the fixed material groove, T-shaped guide sleeves 3 are fixed on the left side wall and the right side wall of the fixed material groove 1, square guide rods 31 are fixed on the left side wall and the right side wall of the movable material groove, one side of each guide rod is inserted in each guide sleeve, limiting strips 32 are formed on the upper side and the lower side of each guide sleeve, the guide rods abut against the limiting strips, a plurality of material pressing rods 4 are inserted in the movable material groove, the lower ends of the material pressing rods extend into the conveying grooves of the movable material groove, and the upper ends of the material, the two ends of the bracket are fixed on the upper end surface of the movable trough, a retaining ring 41 is formed on the material pressing rod, a pressure spring 6 is inserted on the material pressing rod, the two ends of the pressure spring are respectively abutted against the retaining ring and the upper end surface of the movable trough, a T-shaped driving block 7 is arranged between the material pressing rods, the two ends of the driving block are inserted on the material pressing rod on the upper side of the retaining ring, the driving block is pressed on the retaining ring, the retaining ring is annular, an insertion groove 71 penetrating through the front and rear side walls of the driving block is formed in the middle of the driving block, lifting blocks 81 respectively close to the retaining rings on the two sides are fixed on the bottom surface of the upper side of the insertion groove, an upper inclined plane 811 is formed at the bottom of the lifting blocks, an iron layer 91 is arranged on the upper inclined plane, a pushing block 82 abutted against the bottom surface of the lower side of the insertion groove is inserted in the insertion groove, the, the elevator block corresponds from top to bottom with promoting the piece, down the inclined plane and last inclined plane be parallel to each other, be equipped with on the inclined plane down with iron layer complex electro-magnet 92 promotes the piece and fixes on the piston rod of pulling cylinder 10, and the shaping has fixed slot 822 on the back lateral wall that promotes the piece, the shaping has fixed block 101 on the piston rod of pulling the cylinder, the fixed block is pegged graft and is fixed in the fixed slot, pull the cylinder and fix on deciding silo 1, the piston rod of pulling the cylinder is pegged graft on baffle 20, the baffle is fixed on moving silo 2, and the shaping has with baffle and the vertical dog 823 of driving block complex on the rear side of promoting piece 82 between baffle and the driving block 7.
The traction cylinder 10 is fixed on the mounting plate 30 of the L type, the mounting plate is fixed on the upper end face of the fixed trough 1, the insertion hole 301 communicated with the conveying trough of the fixed trough is formed in the mounting plate, the pressing plate 40 is arranged on the upper side of the insertion hole, the cylinder support plate 50 of the L type is fixed on the mounting plate, the material pressing cylinder 60 is fixed on the cylinder support plate, and the pressing plate is fixed on a piston rod of the material pressing cylinder.
When the device is specifically implemented, firstly, a lead frame belt is inserted into the conveying groove 12 of the fixed material groove from one side of the fixed material groove 1 and then inserted into the conveying groove 12 of the movable material groove 2, then the traction cylinder 10 is started and the electromagnet 92 is electrified, the piston rod of the traction cylinder realizes that the pushing block 82 moves forwards, the lower inclined surface 821 on the pushing block moves in cooperation with the upper inclined surface 811 on the lifting block 81, the electromagnet attracts the iron layer 91 to enable the lifting block 81 to move downwards, the lifting block drives the driving block 7 and the material pressing rod 4 to move downwards, the pressure spring 6 compresses and stores elastic potential energy, the lower end of the material pressing rod moves downwards to press and hold the lead frame belt in the conveying groove 12, the lead frame belt is clamped in the movable material groove 2, and the pushing block drives the movable material groove 2 to move forwards along with the forward movement of the pushing block 82, and the lead frame belt is pulled out of the fixed material; when resetting, earlier with electro-magnet 92 outage, the elevator 81 separates with promotion piece 82 under the effect of pressure spring 6 release elastic potential energy, realizes pressing material pole 4 to reset, pulls the piston rod of cylinder 10 simultaneously and resets, drives and promotes the piece and resets, and when the dog 823 that promotes the piece leaned on baffle 20, can drive and move silo 2 and reset.
In summary, the lead frame band traction device for the chip pins has a simple structure, and is convenient for the lead frame band to realize stepping movement.
The leadframe strip pulling apparatus for chip leads provided by the present invention is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The utility model provides a lead frame area draw gear of chip pin, is including deciding silo (1) and moving silo (2), decide the silo with move the equal shaping in the silo and have conveyer trough (12), move the silo and be portable its characterized in that for deciding the silo: a plurality of material pressing rods (4) are inserted into the movable trough, the lower ends of the material pressing rods extend into the conveying trough (12) of the movable trough (2), retaining rings (41) are formed on the material pressing rods, pressure springs (6) are inserted into the material pressing rods, two ends of each pressure spring are respectively abutted against the retaining rings and the upper end face of the movable trough, T-shaped driving blocks (7) are arranged between the material pressing rods, two ends of each driving block are inserted into the material pressing rods on the upper sides of the retaining rings, slots (71) penetrating through the front side wall and the rear side wall of each driving block are formed in the middle of each driving block, lifting blocks (81) respectively close to the retaining rings on two sides are fixed on the bottom surfaces of the upper sides of the slots, upper inclined surfaces (811) are formed at the bottoms of the lifting blocks, iron layers (91) are arranged on the upper inclined surfaces, pushing blocks (82) abutted against the bottom surfaces of the lower sides of, the elevator block corresponds to the pushing block from top to bottom, the lower inclined plane is parallel to the upper inclined plane, an electromagnet (92) matched with an iron layer is arranged on the lower inclined plane, the pushing block is fixed on a piston rod of a traction cylinder (10), the traction cylinder is fixed on a fixed material groove (1), the piston rod of the traction cylinder is inserted into a baffle (20), the baffle is fixed on a movable material groove (2), and a vertical stop block (823) matched with the baffle and a driving block is formed at the upper end of the rear side of the pushing block between the baffle and the driving block (7).
2. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: the novel feeding trough is characterized in that a T-shaped guide sleeve (3) is fixed on the left side wall and the right side wall of the fixed trough (1), a square guide rod (31) is fixed on the left side wall and the right side wall of the movable trough, one side of the guide rod is inserted into the guide sleeve, limiting strips (32) are formed on the upper side and the lower side of the guide sleeve, and the guide rod abuts against the limiting strips.
3. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: the front end of the pushing block (82) is inserted into the slot, and the rear end of the pushing block extends out of the driving block (7).
4. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: pull cylinder (10) and fix on mounting panel (30) of L type, the mounting panel is fixed on the up end of deciding the silo, and the shaping has jack (301) with the conveyer trough intercommunication of deciding the silo on the mounting panel, the upside of jack is equipped with clamp plate (40), is fixed with cylinder mounting panel (50) of L type on the mounting panel, be fixed with on the cylinder mounting panel and press material cylinder (60), the clamp plate is fixed press on the piston rod of material cylinder.
5. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: the rear side wall of the pushing block (82) is formed with a fixing groove (822), a piston rod of the traction cylinder (10) is formed with a fixing block (101), and the fixing block is spliced and fixed in the fixing groove.
6. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: the upper end of the material pressing rod (4) abuts against the Jiong-shaped support (5), and the two ends of the support are fixed on the upper end face of the movable trough (2).
7. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: the driving block (7) presses against a retaining ring (41) which is annular.
8. The leadframe strip pulling apparatus for chip leads according to claim 1, wherein: the length and the width of the conveying groove (12) in the fixed material groove (1) and the movable material groove (2) are equal, and the lower end faces of the conveying grooves in the fixed material groove and the movable material groove are located on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636416.8A CN111804798A (en) | 2020-07-04 | 2020-07-04 | Lead frame area draw gear of chip pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636416.8A CN111804798A (en) | 2020-07-04 | 2020-07-04 | Lead frame area draw gear of chip pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111804798A true CN111804798A (en) | 2020-10-23 |
Family
ID=72855154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010636416.8A Withdrawn CN111804798A (en) | 2020-07-04 | 2020-07-04 | Lead frame area draw gear of chip pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111804798A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535148A (en) * | 2022-01-17 | 2022-05-27 | 广东气派科技有限公司 | Pressure measuring device suitable for gravity separator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5913337A (en) * | 1982-07-14 | 1984-01-24 | Toshiba Corp | Intermittent feeder for lead frame |
| CN203565704U (en) * | 2013-11-01 | 2014-04-30 | 鹤壁职业技术学院 | Full-pneumatic stepping feed device |
| CN204975087U (en) * | 2015-09-28 | 2016-01-20 | 福建中网电力科技有限公司 | Rectangular copper autoloading stamping device |
| CN108994934A (en) * | 2018-05-23 | 2018-12-14 | 东莞市联洲知识产权运营管理有限公司 | A kind of step-by-step movement traction device of threading groove |
| CN209288406U (en) * | 2019-01-17 | 2019-08-23 | 无锡工艺职业技术学院 | A kind of traction device being machined stretchable movement |
| CN111451402A (en) * | 2020-04-13 | 2020-07-28 | 杭州易正科技有限公司 | Stepping type traction device on chip pin forming and cutting equipment |
-
2020
- 2020-07-04 CN CN202010636416.8A patent/CN111804798A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5913337A (en) * | 1982-07-14 | 1984-01-24 | Toshiba Corp | Intermittent feeder for lead frame |
| CN203565704U (en) * | 2013-11-01 | 2014-04-30 | 鹤壁职业技术学院 | Full-pneumatic stepping feed device |
| CN204975087U (en) * | 2015-09-28 | 2016-01-20 | 福建中网电力科技有限公司 | Rectangular copper autoloading stamping device |
| CN108994934A (en) * | 2018-05-23 | 2018-12-14 | 东莞市联洲知识产权运营管理有限公司 | A kind of step-by-step movement traction device of threading groove |
| CN209288406U (en) * | 2019-01-17 | 2019-08-23 | 无锡工艺职业技术学院 | A kind of traction device being machined stretchable movement |
| CN111451402A (en) * | 2020-04-13 | 2020-07-28 | 杭州易正科技有限公司 | Stepping type traction device on chip pin forming and cutting equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535148A (en) * | 2022-01-17 | 2022-05-27 | 广东气派科技有限公司 | Pressure measuring device suitable for gravity separator |
| CN114535148B (en) * | 2022-01-17 | 2024-02-09 | 广东气派科技有限公司 | Pressure measurement device suitable for gravity type separator |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201023 |
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| WW01 | Invention patent application withdrawn after publication |