CN203991943U - The anti-backfill plunger mechanism of anti-scrap bouncing - Google Patents
The anti-backfill plunger mechanism of anti-scrap bouncing Download PDFInfo
- Publication number
- CN203991943U CN203991943U CN201420419118.3U CN201420419118U CN203991943U CN 203991943 U CN203991943 U CN 203991943U CN 201420419118 U CN201420419118 U CN 201420419118U CN 203991943 U CN203991943 U CN 203991943U
- Authority
- CN
- China
- Prior art keywords
- drift
- backfill
- upper bolster
- plunger mechanism
- scrap
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to the anti-backfill plunger mechanism of anti-scrap bouncing, comprise upper bolster, in upper bolster, be provided with punch fixing plate, the bottom of punch fixing plate is provided with drift, is provided with die shoe under upper bolster, is provided with lower mould body and backboard seat on die shoe, the lower mould body position corresponding with drift with backboard seat is provided with lower bits hole, described drift is hollow structure, is provided with thimble in it, between the afterbody of thimble and upper bolster, is provided with spring.The anti-backfill plunger mechanism of above-mentioned anti-scrap bouncing, can effectively prevent that scrap after punching press is along with drift is taken out of, thereby prevent from jumping the generation of bits and backfill phenomenon, has ensured the quality of product.
Description
Technical field
The utility model relates to the plunger mechanism for the production of lead frame, refers to especially the anti-backfill plunger mechanism of a kind of anti-scrap bouncing.
Background technology
Lead frame in process of production, needs the many apertures of punching on it.Lead frame, in the time carrying out punching, completes the punching press to these pores by some roads stamping die.In the time of stamping die punching press, owing to forming vacuum between drift and scrap, drift can be taken scrap out of material surface and form jumping bits, and scrap is jumped and in material, is called backfill phenomenon, and scrap also may drop on lead frame, in later process, cause the damage to product.Above-mentioned situation can cause bad product.
Utility model content
Technical problem to be solved in the utility model is: a kind of anti-backfill plunger mechanism of anti-scrap bouncing that can prevent that scrap from taking out of along with drift is provided.
For addressing the above problem, the technical solution adopted in the utility model is: the anti-backfill plunger mechanism of anti-scrap bouncing, comprise upper bolster, in upper bolster, be provided with punch fixing plate, the bottom of punch fixing plate is provided with drift, under upper bolster, be provided with die shoe, on die shoe, be provided with lower mould body and backboard seat, the lower mould body position corresponding with drift with backboard seat is provided with lower bits hole, described drift is hollow structure, in it, be provided with thimble, between the afterbody of thimble and upper bolster, be provided with spring.
The top of described lower membrane body is provided with stripper plate, and lead frame setting is between stripper plate and lower membrane body, and the stripper plate position corresponding with drift is provided with punching.
Between the punching of described stripper plate and drift, there is shear gap.
In described upper bolster, be provided with spring groove, spring is arranged in spring groove.
The afterbody of described thimble is provided with the step that is greater than spring diameter.
The beneficial effects of the utility model are: the anti-backfill plunger mechanism of above-mentioned anti-scrap bouncing, and can effectively prevent that scrap after punching press is along with drift is taken out of, thereby prevent from jumping the generation of bits and backfill phenomenon, ensure the quality of product.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of thimble in top bits state in Fig. 1;
In figure: 1, upper bolster, 2, punch fixing plate, 3, drift, 4, lower bits hole, 5, stripper plate, 6, lead frame, 7, punching, 8, thimble, 9, spring, 10, spring groove, 11, step, 12, lower mould body, 13, backboard seat.
Detailed description of the invention
Below by specific embodiment, the anti-backfill plunger mechanism of anti-scrap bouncing described in the utility model is described in further detail.
As shown in Figure 1, the anti-backfill plunger mechanism of anti-scrap bouncing, comprise upper bolster 1, in upper bolster 1, be provided with punch fixing plate 2, the bottom of punch fixing plate 2 is provided with drift 3, under upper bolster 1, be provided with die shoe, on die shoe, be provided with lower mould body 12 and backboard seat 13, lower mould body 12 and backboard seat 13 position corresponding with drift 3 are provided with lower bits hole 4, the top of described lower membrane body 12 is provided with stripper plate 5, lead frame 6 is arranged between stripper plate 5 and die shoe 2, stripper plate 5 position corresponding with drift 3 is provided with punching 7, between the punching 7 of described stripper plate 5 and drift 3, there is shear gap.Described drift 3 is hollow structure, is provided with thimble 8 in it, between the afterbody of thimble 8 and upper bolster 1, is provided with spring 9, in described upper bolster 1, is provided with spring groove 10, and spring 9 is arranged in spring groove 10.The afterbody of described thimble 8 is provided with the step 11 that is greater than spring 9 diameters.
Operation principle of the present utility model is: the lead frame 6 of required punching is arranged between stripper plate 5 and lower mould body 12 and realizes and fixing, drift 3 moves down realizes punching, in the time of punching, the bottom of the bottom of drift 3 and thimble 8 contacts with lead frame 6, make spring 9 pressurizeds, thimble 8 is hidden in drift 3, as shown in Figure 2, after punching completes, punching bits depart from lead frame 6, no longer pressurized of spring 9, the bottom of thimble 8 is ejected to the lower surface of drift 3, along with ejecting of thimble 8, punching bits fall in lower bits hole 4 in the effect of thimble 8, thereby can effectively prevent that scrap after punching press is along with drift 3 is taken out of, thereby prevent from jumping the generation of bits and backfill phenomenon, ensure the quality of product.
The above embodiments are principle and effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the utility model; It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. the anti-backfill plunger mechanism of anti-scrap bouncing, comprise upper bolster, in upper bolster, be provided with punch fixing plate, the bottom of punch fixing plate is provided with drift, is provided with die shoe under upper bolster, is provided with lower mould body and backboard seat on die shoe, the lower mould body position corresponding with drift with backboard seat is provided with lower bits hole, it is characterized in that: described drift is hollow structure, in it, be provided with thimble, between the afterbody of thimble and upper bolster, be provided with spring.
2. the anti-backfill plunger mechanism of anti-scrap bouncing according to claim 1, is characterized in that: the top of described lower mould body is provided with stripper plate, and lead frame setting is between stripper plate and lower membrane body, and the stripper plate position corresponding with drift is provided with punching.
3. the anti-backfill plunger mechanism of anti-scrap bouncing according to claim 2, is characterized in that: between the punching of described stripper plate and drift, have shear gap.
4. the anti-backfill plunger mechanism of anti-scrap bouncing according to claim 1, is characterized in that: in described upper bolster, be provided with spring groove, spring is arranged in spring groove.
5. the anti-backfill plunger mechanism of anti-scrap bouncing according to claim 4, is characterized in that: the afterbody of described thimble is provided with the step that is greater than spring diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419118.3U CN203991943U (en) | 2014-07-28 | 2014-07-28 | The anti-backfill plunger mechanism of anti-scrap bouncing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419118.3U CN203991943U (en) | 2014-07-28 | 2014-07-28 | The anti-backfill plunger mechanism of anti-scrap bouncing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203991943U true CN203991943U (en) | 2014-12-10 |
Family
ID=52032009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420419118.3U Expired - Fee Related CN203991943U (en) | 2014-07-28 | 2014-07-28 | The anti-backfill plunger mechanism of anti-scrap bouncing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203991943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148488A (en) * | 2014-07-28 | 2014-11-19 | 顺德工业(江苏)有限公司 | Chip jumping-and-backfilling preventive punch mechanism |
-
2014
- 2014-07-28 CN CN201420419118.3U patent/CN203991943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148488A (en) * | 2014-07-28 | 2014-11-19 | 顺德工业(江苏)有限公司 | Chip jumping-and-backfilling preventive punch mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204093916U (en) | A kind of two plunger chip die | |
| CN203197153U (en) | Mechanism for preventing workpiece or scrap material from ascending | |
| CN206296365U (en) | A kind of blanking extension die | |
| CN203991943U (en) | The anti-backfill plunger mechanism of anti-scrap bouncing | |
| CN202169316U (en) | Punching and forming integrated mould | |
| CN102672055A (en) | Punching mold of adapting part | |
| CN104148488A (en) | Chip jumping-and-backfilling preventive punch mechanism | |
| CN203917634U (en) | Automobile safety belt retractor raising point mould | |
| CN103418693A (en) | Turnup cylinder processing die | |
| CN103737669A (en) | Punching tool with floating positioning structure | |
| CN203197089U (en) | Mould with structure for preventing workpiece or scrap from ascending | |
| CN203409073U (en) | Hard and thick material stamping mold | |
| CN203184508U (en) | Wheel hub stamping demoulding device | |
| CN202861117U (en) | Punching pin continuous die | |
| CN202219286U (en) | Die holder with elastic materials | |
| CN204262189U (en) | A kind of panel beating indent bending mould being provided with liftout attachment | |
| CN204262188U (en) | A kind of Novel sheet metal indent bending mould | |
| CN202725814U (en) | Sheet metal part punching mould with anti-tripping function | |
| CN204093937U (en) | A kind of annular expanding die | |
| CN202861119U (en) | Punching pin continuous die | |
| CN204308066U (en) | One carries out continuously automatic riveting structure reliably in mould | |
| CN104014661A (en) | Convex point forming die for automobile safety belt retractors | |
| CN203888248U (en) | Electromagnetic powder press | |
| CN202861120U (en) | Punching pin continuous die | |
| CN202105899U (en) | Mould for fabricating valve cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170728 |