CN217315474U - Thin type four-side flat packaging frame notching die - Google Patents
Thin type four-side flat packaging frame notching die Download PDFInfo
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- CN217315474U CN217315474U CN202220924736.8U CN202220924736U CN217315474U CN 217315474 U CN217315474 U CN 217315474U CN 202220924736 U CN202220924736 U CN 202220924736U CN 217315474 U CN217315474 U CN 217315474U
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- material supporting
- fixing plate
- supporting rod
- spring
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Abstract
The utility model discloses a thin four-side flat packaging frame notching die, which comprises an upper die base, a male die fixing plate, a notching male die, a pressure plate, a notching female die, a female die fixing plate, a lower die base, a material lifting block, a material lifting spring, a material supporting rod and a material supporting spring; the upper end of the concave male die is fixed on a male die fixing plate, a pressure plate is installed on the top surface of a female die fixing plate, a concave die is fixed in the female die fixing plate, a material lifting block is movably arranged in the female die fixing plate in a penetrating mode, the lower end of the material lifting block abuts against a material lifting spring, a material supporting rod is movably installed in the concave die, the upper end of the material supporting rod is opposite to the lower end of the concave male die, the lower end of the material supporting rod abuts against the upper end of the material supporting spring, and the material supporting spring is installed in the female die fixing plate and a lower die seat. Because the utility model discloses increase in the die bottom of caving and hold in the palm material pole and hold in the palm the material spring, the LQFP product is after the action of caving is accomplished, and when the terrace die of caving went upward, it had an ascending effort to hold in the palm the material pole to LQFP product base island, and the precision of caving is high.
Description
Technical Field
The utility model relates to a stamping die especially relates to a slim four sides flat packaging frame die of beating concave.
Background
With the rapid development of the integrated circuit industry, the technical level of domestic packaging manufacturers is continuously improved, and in addition to the demands of market competition, each manufacturer finds high-end packaging products, and thin four-side flat packaging products using the LQFP frame are typical of the high-end packaging products.
As shown in fig. 1A and 1B, the conventional product 100 'is only a two-directional debossing structure, and the design of the forming part is generally only that a proper bevel edge extrusion amount is set between debossing convex-concave dies, and the demoulding resistance of the product after debossing is not large, and the debossing die (as shown in fig. 2) adopted by the product comprises an upper die holder 1', a punch retainer 2 ', a debossing convex die 3', a pressure plate 4 ', a debossing concave die 5', a die retainer 6 ', a lower die holder 7', a lifting block 8 ', and a lifting spring 9'; the stripping is realized by lifting the material block 8 'at two sides, and the size requirement of the product 100' is better ensured. However, as the LQFP product 100 (as shown in fig. 3A and 3B) integrates complex functional requirements, and the thickness of the whole package is only 1.4mm, in order to ensure the reliability of the circuit, high requirements are correspondingly provided for the recess depth and the land flatness of the frame LQFP product 100. The LQFP product 100 is dented in four directions, if the LQFP product 100 is designed according to a traditional structure, the demolding resistance after dented is large, the unsmooth material supporting can cause the sinking of the island part of the LQFP product 100, and the dent depth is easy to be out of tolerance.
Disclosure of Invention
An object of the utility model is to provide a slim four sides flat packaging frame of high accuracy of dishing beats concave mould.
In order to achieve the above object, the technical solution of the present invention is:
the utility model relates to a thin four-side flat packaging frame notching die, which comprises an upper die base, a male die fixing plate, a notching male die, a pressure plate, a notching female die, a female die fixing plate, a lower die base, a material lifting block, a material lifting spring, a material supporting rod and a material supporting spring; the upper die base is fixed with the punch retainer, the upper end of the debossing punch is fixed on the punch retainer, and the lower end of the debossing punch penetrates through the material pressing plate and then extends to the debossing female die; the material pressing plate is mounted on the top surface of the female die fixing plate in a vertically movable mode, the female die fixing plate is fixed with the lower die holder, the concave die is fixed in the female die fixing plate and is positioned right below the concave convex die, the material lifting block is movably arranged in the female die fixing plate in a penetrating mode, the upper end of the material lifting block abuts against the material pressing plate, the lower end of the material lifting block abuts against the material lifting spring, and the material lifting spring is mounted in the lower die holder; the material supporting rod is movably arranged in the concave die, the upper end of the material supporting rod is opposite to the lower end of the concave die, the lower end of the material supporting rod abuts against the upper end of the material supporting spring, and the material supporting spring is arranged in the female die fixing plate and the lower die base.
The die fixing plate is provided with a material supporting groove used for installing a material supporting rod, the material supporting groove is a stepped groove, the lower end of the material supporting rod is provided with a hanging table, the upper portion of the material supporting rod movably penetrates through the material supporting groove of the die fixing plate, the height of the hanging table on the material supporting rod is smaller than the height of the bottom of the material supporting groove, and the height difference between the height of the hanging table of the material supporting rod and the height of the bottom of the material supporting groove forms the stroke of the material supporting rod moving up and down.
The utility model also comprises a material lifting plug; the middle part of the female die fixing plate is provided with a through hole, the middle part of the lower die base is provided with a threaded hole, the through hole in the middle part of the female die fixing plate and the threaded hole in the middle part of the lower die base are coaxially arranged, the material supporting spring is sleeved in the through hole of the female die fixing plate and the threaded hole of the lower die base in a clearance mode, the lower end of the material supporting spring abuts against the material lifting plug, and the material lifting plug is in threaded connection with the threaded hole of the lower die base.
After the scheme of the invention is adopted, because the utility model discloses increase in the die bottom of the dishing and hold in the palm material pole and expect the spring, and be equipped with the difference in height between the die of the dishing and holding in the palm the material pole, the LQFP product is after the action of the dishing is accomplished, when the terrace die of the dishing goes upward, it has an ascending effort to hold in the palm the material pole to LQFP product base island, can assist the drawing of patterns of LQFP product, can have certain offset to the degree of depth of the dishing again, thereby guarantee that the LQFP product is the same basically at the degree of depth of the dishing at base island position and the degree of depth of the dishing of base island even muscle department, the accuracy of the dishing of LQFP product is high, QFLP product pressure welding's reliability has been increased, and the operation requirement is satisfied.
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1A is a front view of a conventional product;
FIG. 1B is a side view of a conventional product;
FIG. 2 is a schematic view of a conventional debossing mold;
FIG. 3A is a front view of the LQFP product;
FIG. 3B is a side view of the LQFP product;
fig. 4 is a schematic diagram of the present invention.
Detailed Description
As shown in fig. 4, the utility model relates to a flat encapsulation frame in slim four sides beats concave mould, including upper die base 1, punch plate 2, beat concave terrace die 3, press flitch 4, beat concave die 5, die plate 6, die holder 7, lift material piece 8, lift material spring 9, material supporting rod 10, material supporting spring 20, lift material end cap 30.
The upper die holder 1 is fixed with the punch retainer 2, the upper end of the concave male die 3 is fixed on the punch retainer 2, and the lower end of the concave male die 3 penetrates through the pressure plate 4 and then extends to the concave die 5; the material pressing plate 4 is mounted on the top surface of the female die fixing plate 6 in a vertically movable mode, the female die fixing plate 6 is fixed with the lower die holder 7 together, the concave punching female die 5 is fixed in the female die fixing plate 6 and located right below the concave punching male die 3, the material lifting block 8 is movably arranged in the female die fixing plate 6 in a penetrating mode, the upper end of the material lifting block 8 abuts against the material pressing plate 4, the lower end of the material lifting block 8 abuts against the material lifting spring 9, and the material lifting spring 9 is mounted in the lower die holder 7.
The female die fixing plate 6 is provided with a material supporting groove 61 for mounting the material supporting rod 10, and the material supporting groove is a stepped groove; the upper end of the material supporting rod 10 is opposite to the lower end of the concave convex die 3, the lower end of the material supporting rod 10 is abutted against the upper end of the material supporting spring 20, the material supporting spring 20 is installed in the female die fixing plate 8 and the lower die seat 9, the lower end of the material supporting rod 10 is provided with a hanging table 101, the upper portion of the material supporting rod 10 movably penetrates through a material supporting groove 61 of the female die fixing plate 6, the height of the hanging table 101 on the material supporting rod 10 is smaller than the height of the bottom 611 of the material supporting groove 61, the height difference between the height of the hanging table 101 of the material supporting rod 10 and the height of the bottom 611 of the material supporting groove 61 forms the stroke of the material supporting rod 10 in a vertical moving mode, and in the concave process, the top surface of the material supporting rod 10 is slightly lower than the top surface of the concave die 5.
Further, a through hole 62 is formed in the middle of the female die fixing plate 6, a threaded hole 71 is formed in the middle of the lower die holder 7, the through hole 62 in the middle of the female die fixing plate 6 and the threaded hole 71 in the middle of the lower die holder 7 are coaxially arranged, the material supporting spring 20 is sleeved in the through hole 62 in the female die fixing plate 6 and the threaded hole 71 in the lower die holder 7 in a clearance mode, the lower end of the material supporting spring 20 abuts against the material lifting plug 30, and the material lifting plug 30 is in threaded connection with the threaded hole 71 in the lower die holder 7.
The utility model discloses a theory of operation:
referring to fig. 3A and 3B, in a normal state, the top surface of the material supporting rod 10 is flush with the top surface of the concave die 5, in the concave process, the concave die 3 impacts the LQFP product 100 downwards, the material supporting spring 20 is compressed downwards, the material supporting rod 10 sinks, so that the top surface of the material supporting rod 10 is lower than the top surface of the concave die 5, a groove is formed on the LQFP product 100, and the material supporting rod 10 has an upward acting force on the base island 110 of the LQFP product 100, so that the demoulding of the LQFP product 100 can be assisted, and a certain compensation amount can be provided for the concave depth.
The above description is only a preferred embodiment of the present invention, and therefore, the scope of the present invention should not be limited by the above description, and all equivalent changes and modifications made in the claims and the description of the present invention should be covered by the present invention.
Claims (3)
1. A thin four-side flat packaging frame notching die comprises an upper die base, a male die fixing plate, a notching male die, a material pressing plate, a notching female die, a female die fixing plate, a lower die base, a material lifting block and a material lifting spring; the upper die base is fixed with the punch retainer, the upper end of the debossing punch is fixed on the punch retainer, and the lower end of the debossing punch penetrates through the material pressing plate and then extends to the debossing female die; the material pressing plate is mounted on the top surface of the female die fixing plate in a vertically movable mode, the female die fixing plate is fixed with the lower die holder, the concave die is fixed in the female die fixing plate and is positioned right below the concave convex die, the material lifting block is movably arranged in the female die fixing plate in a penetrating mode, the upper end of the material lifting block abuts against the material pressing plate, the lower end of the material lifting block abuts against the material lifting spring, and the material lifting spring is mounted in the lower die holder; the method is characterized in that: the device also comprises a material supporting rod and a material supporting spring; the material supporting rod is movably arranged in the concave die, the upper end of the material supporting rod is opposite to the lower end of the concave die, the lower end of the material supporting rod abuts against the upper end of the material supporting spring, and the material supporting spring is arranged in the female die fixing plate and the lower die base.
2. The thin quad flat pack frame debossing mold of claim 1, wherein: the die fixing plate is provided with a material supporting groove used for installing a material supporting rod, the material supporting groove is a stepped groove, the lower end of the material supporting rod is provided with a hanging table, the upper portion of the material supporting rod movably penetrates through the material supporting groove of the die fixing plate, the height of the hanging table on the material supporting rod is smaller than the height of the bottom of the material supporting groove, and the height difference between the height of the hanging table of the material supporting rod and the height of the bottom of the material supporting groove forms the stroke of the material supporting rod moving up and down.
3. The thin quad flat pack frame debossing mold of claim 1, wherein: the material lifting plug is also included; the die holder is characterized in that a through hole is formed in the middle of the female die fixing plate, a threaded hole is formed in the middle of the lower die holder, the through hole in the middle of the female die fixing plate and the threaded hole in the middle of the lower die holder are coaxially arranged, the material supporting spring is sleeved in the through hole of the female die fixing plate and the threaded hole of the lower die holder in a clearance mode, the lower end of the material supporting spring abuts against the material lifting plug, and the material lifting plug is in threaded connection with the threaded hole of the lower die holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220924736.8U CN217315474U (en) | 2022-04-20 | 2022-04-20 | Thin type four-side flat packaging frame notching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220924736.8U CN217315474U (en) | 2022-04-20 | 2022-04-20 | Thin type four-side flat packaging frame notching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217315474U true CN217315474U (en) | 2022-08-30 |
Family
ID=82948517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220924736.8U Active CN217315474U (en) | 2022-04-20 | 2022-04-20 | Thin type four-side flat packaging frame notching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217315474U (en) |
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2022
- 2022-04-20 CN CN202220924736.8U patent/CN217315474U/en active Active
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