CN202516914U

CN202516914U - Punching device for manufacturing shielding copper sheet of semiconductor plastic-packaging high-frequency pre-heater

Info

Publication number: CN202516914U
Application number: CN2012200843719U
Authority: CN
Inventors: 邱焕枢; 李伟光
Original assignee: FOSHAN BLUE ROCKET ELECTRONICS Co Ltd
Current assignee: FOSHAN BLUE ROCKET ELECTRONICS Co Ltd
Priority date: 2012-03-07
Filing date: 2012-03-07
Publication date: 2012-11-07
Anticipated expiration: 2022-03-07

Abstract

The utility model discloses a punching device for manufacturing a shielding copper sheet of a semiconductor plastic-packaging high-frequency pre-heater. The punching device comprises an upper die, a lower die and an air cylinder, wherein the upper die is driven to move vertically by the air cylinder and is provided with a punching upper cutter, the lower die is provided with a punching lower cutter, the punching upper cutter and the punching lower cutter are matched on the shielding copper sheet to punch a group of through holes, the group of the through holes are repeatedly arranged on the shielding copper sheet, the lower die is also provided with a locating pin for locating the shielding copper sheet, and the punching lower cutter is just aligned to the position of the next group of the through holes to be punched on the shielding copper sheet due to the distance between the locating pin and the punching lower cutter after the through holes punched on the shielding copper sheet are sleeved on the locating pin. The punching device disclosed by the utility model has the advantages that the structure is simple, the manufacturing cost and the maintenance cost are low, the failure rate is low, the production efficiency is high, the punched shielding copper sheet is smoother, that preheat materials can be enabled to be preheated uniformly by the plastic-packaging high-frequency pre-heater within shorter time, and the problems that the high-frequency leakage cannot be caused and the like can be ensured.

Description

Make the blanking units of semiconductor plastic package high frequency preheater shielding copper sheet

Technical field

The utility model relates to the secondary process equipment that behind semiconductor, uses in the operation encapsulation, particularly aims at the device of semiconductor plastic package high frequency preheater manufacturing shielding copper sheet.

Background technology

Behind semiconductor, in the operation encapsulation, need before the plastic packaging plastic packaging material to be preheating to 90 deg.c with the plastic packaging high frequency preheater.The plastic packaging high frequency preheater needs the shielding copper sheet high frequency is shielded when work.This shielding copper sheet that in the plastic packaging high frequency preheater, uses needs often to change, otherwise can influence semi-conductive plastic packaging quality, and does not still make the high-efficiency appliance of this shielding copper sheet at present.The method of making plastic packaging high frequency preheater shielding copper sheet at present has two kinds, and the one, cut with scissors, the 2nd, die-cut with hydraulic press; The former efficient is very low, and the shielding copper sheet quality of processing is very poor, very easily causes high frequency to be revealed; Latter's manufacturing cost is high, and maintenance cost is big, and the friendship phase is long.

The utility model content

The purpose of the utility model provides a kind of blanking units of making semiconductor plastic package high frequency preheater shielding copper sheet, with production efficiency and the reduction manufacturing cost that improves the shielding copper sheet.

The utility model is achieved in that a kind of blanking units of making semiconductor plastic package high frequency preheater shielding copper sheet, comprises frame, upper die and lower die and cylinder, and upper die and lower die and cylinder are installed on the frame; Patrix is connected with cylinder; Drive the patrix vertical up-or-down movement by cylinder, patrix is equipped with die-cut upper slitter, and counterdie is equipped with die-cut cutter down; When patrix and counterdie matched moulds; Die-cut upper slitter matches with die-cut cutter down and on the shielding copper sheet, goes out one group of through hole, and this group through hole is one group of through hole of the repeated arrangement on the shielding copper sheet, and counterdie also is provided with one or more alignment pins that are used to locate the shielding copper sheet; The through hole of going out on the shielding copper sheet can be enclosed within least one alignment pin; Be enclosed within through hole on the said alignment pin as locating hole with this, the spacing between the die-cut cutter down of going out this locating hole and the alignment pin of this locating hole of insertion equals to shield the spacing between the two adjacent groups through hole on the copper sheet.

The utility model also can be taked following attached technical scheme: said patrix is provided with stripper, is connected with spring between stripper and the patrix.

Further, on said stripper, be provided with through hole, its role is to avoid said stripper to conflict mutually with said die-cut upper slitter.

Between said patrix and counterdie, be provided with lead, lead constitutes the relation that is fixedly connected with counterdie, and lead and patrix constitute slip cooperating relationship.

Compared with prior art, the utlity model has following technique effect: 1, simple in structure, manufacturing cost and maintenance cost are little, and fault rate is low; 2, adopt the air cylinder driven patrix, patrix movement velocity piece, and whenever dashed one group of through hole, and the positioning function of alignment pin capable of using manually moves the shielding copper sheet and navigates to next station rapidly, and production efficiency is high; 3, the die-cut shielding copper sheet that comes out is more smooth, can guarantee that the plastic packaging high frequency preheater evenly, can not produce the plastic packaging material preheating problems such as HF leakage in the short period of time.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the upward view of the patrix among Fig. 1;

Fig. 3 is the vertical view of the counterdie among Fig. 1;

Fig. 4 is that the shielding copper sheet covers the sketch map on counterdie shown in Figure 3;

Fig. 5 is the another kind of structural representation of counterdie;

Fig. 6 is that the shielding copper sheet covers the sketch map on counterdie shown in Figure 5.

Reference numeral:

1. frame 2. patrixes 3, counterdie.

4. cylinder 5,6,7. die-cut

upper slitter

8,9,10. die-cut cutter down

11. through hole 15. alignment pins of shielding

copper sheet

12,13,14. shielding copper sheets

15a. can insert alignment pin 16. strippers of the through hole of shielding copper sheet

17. spring 18. stripper through holes, 19. leads

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1, a kind of blanking units of making semiconductor plastic package high frequency preheater shielding copper sheet is made up of frame 1, patrix 2, counterdie 3 and cylinder 4.Patrix 2, counterdie 3 and cylinder 4 are installed on the frame 1.Patrix 2 is connected with cylinder 4, drives patrix 2 vertical up-or-down movements by cylinder 4.Referring to Fig. 1 and Fig. 2, patrix 2 is equipped with three die-cut upper slitters 5,6,7 simultaneously.Referring to Fig. 1 and Fig. 3, counterdie 3 offers the shape hole of three sharp edges simultaneously, and said three shape holes constitute die-

cut cutter

8,9,10 down, constitutes with three die-cut upper slitters 5,6,7 respectively and shears matching relationship.When patrix 2 and counterdie 3 matched moulds; Three die-cut upper slitters 5,6,7 match with three die-

cut cuttves

8,9,10 down and on the shielding copper sheet, go out three through holes; That is three through

holes

12,13,14 in the frame of broken lines on the shielding copper sheet 11 shown in Figure 4; These three through holes are formed one group of through hole, and this group through hole is the equidistance repeated arrangement on shielding copper sheet 11.

Referring to Fig. 3, counterdie 3 also is provided with four alignment pins 15 that are used to locate the shielding copper sheet, and is as shown in Figure 4, and the through hole of going out on the shielding copper sheet 14 can be enclosed within on one of them alignment pin 15a.To be enclosed within through hole 14 on the alignment pin 15a as locating hole; Spacing L between the die-cut down cutter 10 of going out this locating hole and the alignment pin 15a of this locating hole of insertion; Equal to shield the spacing W between the two adjacent groups through hole on the copper sheet; Thus, whenever dash one group of through hole, just can rely on the location of alignment pin 15a and other two alignment pins 15; Move the shielding copper sheet with hand and navigate to the next position fast, next that makes that three die-cut down

cuttves

8,9,10 just aim at that institute will go out on the shielding copper sheet organized the position that through hole belongs to.

In another kind of counterdie topology example shown in Figure 5; Counterdie 3 has only a strip alignment pin 15a who is used to locate the shielding copper sheet; As shown in Figure 6; The through hole of going out on the shielding copper sheet 13 can be enclosed within on the alignment pin 15a, goes out the die-cut cutter 9 down of through hole 13 and the spacing L between the alignment pin 15a, equals to shield the spacing W between the two adjacent groups through hole on the copper sheet.

Whenever on the shielding copper sheet, going out one group of through hole, the die-cut upper slitter 5,6,7 of patrix will be embedded in the through hole of just having gone out, and causes the shielding copper sheet not separate with patrix smoothly, makes troubles thus.For addressing this problem, referring to Fig. 1, present embodiment is provided with stripper 16 at patrix 2, is connected with spring 17 between stripper 16 and the patrix 2.Under the effect of spring 17, stripper 16 can push away patrix 2 with the shielding copper sheet.Conflict mutually with die-cut upper slitter 5,6,7 for fear of stripper 16; Present embodiment offers the through hole 18 of dodging die-cut upper slitter 5,6,7 on stripper 16, in addition, also can not offer through hole 18; But, make stripper 16 avoid die-cut upper slitter through designing the shape of stripper 16.

More steady when patrix 2 is moved up and down, referring to Fig. 1, present embodiment is provided with lead 19 between patrix 2 and counterdie 3, and lead 19 constitutes the relation that is fixedly connected with counterdie 3, lead 19 and patrix 2 formation slip cooperating relationships.

Above embodiment is only in order to the technical scheme of explanation the utility model, but not to the restriction of the utility model protection domain.Although the foregoing description specifies the utility model; Those of ordinary skill in the art still can make amendment and is equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the utility model.

Claims

1. make the blanking units of semiconductor plastic package high frequency preheater shielding copper sheet; It is characterized in that: comprise frame (1), patrix (2), counterdie (3) and cylinder (4); Patrix (2), counterdie (3) and cylinder (4) are installed on the frame (1), and patrix (2) is connected with cylinder (4), drive patrix (2) vertical up-or-down movement by cylinder (4); Patrix (2) is equipped with die-cut upper slitter (5,6,7); Counterdie (3) is equipped with die-cut cutter (8,9,10) down, and when patrix (2) and counterdie (3) matched moulds, die-cut upper slitter (5,6,7) matches with die-cut cutter (8,9,10) down and on the shielding copper sheet, goes out one group of through hole; This group through hole is one group of through hole of the repeated arrangement on the shielding copper sheet; Counterdie (3) also is provided with one or more alignment pins (15) that are used to locate the shielding copper sheet, and the through hole of going out on the shielding copper sheet can be enclosed within least one alignment pin (15a), is enclosed within through hole on the said alignment pin (15a) as locating hole with this; Spacing (L) between the die-cut down cutter (8) of going out this locating hole and the alignment pin (15a) of this locating hole of insertion equals to shield the spacing (W) between the two adjacent groups through hole on the copper sheet.

2. the blanking units of making semiconductor plastic package high frequency preheater shielding copper sheet as claimed in claim 1, it is characterized in that: said patrix (2) is provided with stripper (16), is connected with spring (17) between stripper (16) and the patrix (2).

3. the blanking units of making semiconductor plastic package high frequency preheater shielding copper sheet as claimed in claim 1, it is characterized in that: said stripper (16) is provided with the through hole (18) that can dodge said die-cut upper slitter (5,6,7).

4. according to claim 1 or claim 2 the blanking units of making semiconductor plastic package high frequency preheater shielding copper sheet; It is characterized in that: between said patrix (2) and counterdie (3), be provided with lead (19); Lead (19) constitutes the relation that is fixedly connected with counterdie (3), and lead (19) constitutes slip cooperating relationship with patrix (2).