CN217257949U - Anti-sticking mold elastic block demolding mechanism for injection mold of medium plate decoration frame of automobile headlamp - Google Patents
Anti-sticking mold elastic block demolding mechanism for injection mold of medium plate decoration frame of automobile headlamp Download PDFInfo
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- CN217257949U CN217257949U CN202123121328.3U CN202123121328U CN217257949U CN 217257949 U CN217257949 U CN 217257949U CN 202123121328 U CN202123121328 U CN 202123121328U CN 217257949 U CN217257949 U CN 217257949U
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- 239000007924 injection Substances 0.000 title claims abstract description 29
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- 238000005034 decoration Methods 0.000 title claims description 9
- 238000000465 moulding Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 22
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 description 10
- 238000005406 washing Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 3
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- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000005242 forging Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
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Abstract
The utility model provides a sticking prevention mould bullet piece demoulding mechanism of vehicle headlamps medium plate dress escutcheon injection mould belongs to mould technical field. The die comprises an upper die plate and a lower die plate, wherein two forming cavities are formed in the upper die plate and the lower die plate, the cross sections of the forming cavities are arc-shaped, an ejector pin fixing plate is arranged on the lower side of the lower die plate, and a short-stroke ejection assembly for preventing products from being adhered to the lower die plate is arranged on the ejector pin fixing plate. Two molding cavities between cope match-plate pattern and the lower bolster can injection moulding two head-light medium plate dress escutcheon products simultaneously, and the side is loosed core formula briquetting subassembly and can be prevented that the product adhesion is on the cope match-plate pattern when the mould die sinking, and after the mould die sinking, the side is loosed core formula briquetting subassembly and can be broken away from with the product, thereby the ejecting subassembly of short stroke can make product and lower bolster break away from with the product one section distance of upwards ejecting automatically to improve the ejecting efficiency of product.
Description
Technical Field
The utility model belongs to the technical field of the mould, a sticking prevention mould bullet piece demoulding mechanism of vehicle headlamps medium plate dress escutcheon injection mould is related to.
Background
The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool for making a shaped article, the tool being composed of various parts, different molds being composed of different parts, which effect the processing of the shape of the article mainly by the change of the physical state of the material being shaped; the automobile headlamp middle plate decorative frame is generally formed by injection molding, and after the automobile headlamp middle plate decorative frame mold in the prior art is formed by injection molding of a product, the phenomenon of the product on a lower template is easy to occur, so that the product cannot be ejected out quickly.
In order to overcome the defects of the prior art, various solutions are proposed through continuous exploration, for example, a chinese patent discloses an ejection mechanism [ application number: 202021467873.0], including a mold base, and a core mold fixed in the mold base, the washing machine balance ring is sleeved on the core mold, and further including: the inner side of the upper surface of the annular outer ejection block is contacted with the outer end surface of the lower end of the balance ring of the washing machine; the inner circular ejection block is positioned in the balancing ring of the washing machine, and the outer edge of the upper surface of the inner circular ejection block is in contact with the inner end surface of the lower end of the balancing ring of the washing machine; the annular outer ejection block and the inner circular ejection block are connected with a lifting driving mechanism, and the lifting driving mechanism drives the annular outer ejection block and the inner circular ejection block to simultaneously jack up the balance ring of the washing machine upwards, but the problems also exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, a sticking prevention mould bullet piece demoulding mechanism is provided to vehicle headlamps medium plate dress escutcheon injection mould.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides an anti-sticking mould elastic block demoulding mechanism of vehicle headlamps medium plate dress escutcheon injection mould, includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster in be equipped with two shaping chambeies, the cross-section in shaping chamber be the arc, the lower bolster downside be equipped with ejector fixing plate, ejector fixing plate on be equipped with the ejecting subassembly of short stroke that prevents product and lower bolster adhesion, the lower bolster on still be equipped with the side formula of loosing core pressure block subassembly that is used for preventing product and cope match-plate pattern adhesion.
In the anti-sticking mold elastic block demolding mechanism for the automobile headlamp middle plate decoration frame injection mold, the short-stroke ejection assembly comprises a plurality of straight ejector rods vertically fixed on the ejector pin fixing plate, and an anti-sticking elastic block structure is arranged at the top of each straight ejector rod.
In foretell vehicle headlamps medium plate dress escutcheon injection mould anti-sticking mould bullet piece demoulding mechanism, anti-sticking bullet piece structure include the straight ejection bullet piece that links to each other with straight ejector pin, straight ejection bullet piece imbed in the lower bolster and the top links to each other with the shaping chamber, straight ejector pin insert in the straight ejection bullet piece and with straight ejection bullet piece sliding connection, straight ejector pin top be equipped with the spring mounting chamber, the spring mounting intracavity link firmly the spring that sets up, spring top and straight ejection bullet piece link firmly.
In foretell vehicle headlamps medium plate dress escutcheon injection mould anti-sticking mould bullet piece demoulding mechanism, the side formula of loosing core briquetting subassembly include from outside level insert to the briquetting of one-tenth die cavity lateral part, the lower bolster on still be equipped with the slider of loosing core that links to each other with the briquetting, the cope match-plate pattern on be equipped with and loose core the side core subassembly that the slider links to each other with loosing core.
In foretell vehicle headlamps medium plate dress escutcheon injection mould anti-sticking mould bullet piece demoulding mechanism, the side subassembly of loosing core include two actuating levers of fixing on the cope match-plate pattern, the actuating lever slope set up and insert to the slider of loosing core in and with the slider sliding connection of loosing core along the incline direction, the lower bolster on still be equipped with slider limit structure.
In foretell vehicle headlamps medium plate dress escutcheon injection mould anti-sticking mould bullet piece demoulding mechanism, slider limit structure including setting up the limiting plate in the slider both sides of loosing core, the limiting plate downside be equipped with spacing spout, the slider both sides of loosing core be equipped with the limiting slide who inserts to spacing spout in.
In the anti-sticking mold elastic block demolding mechanism for the automobile headlamp middle plate decoration frame injection mold, the ejector fixing plate is further provided with an inclined ejector core-pulling structure which is obliquely arranged.
In foretell vehicle headlamps medium plate dress escutcheon injection mould anti-sticking mould bullet piece demoulding mechanism, the oblique ejector pin of loosing core structure including with thimble fixed plate articulated, oblique ejector pin top be equipped with the shaping intracavity lateral wall continuous oblique kicking block.
In the anti-sticking mould elastic block demoulding mechanism for the injection mould of the medium plate decoration frame of the automobile headlamp, the thimble fixing plate is further provided with a plurality of vertically arranged straight thimbles, and the tops of the straight thimbles penetrate through the lower template and are connected with the forming cavity.
In foretell vehicle headlamps medium plate dress escutcheon injection mould anti-sticking mould bullet piece demoulding mechanism, the cope match-plate pattern on be equipped with the pipe of moulding plastics, the pipe of moulding plastics be located between two shaping chambeies and link to each other through connecting runner and two shaping chambeies, the highest point of the pipe bottom of moulding plastics and shaping chamber flush.
Compared with the prior art, the utility model has the advantages of:
1. two molding cavities between cope match-plate pattern and the lower bolster can injection moulding two head-light medium plate dress escutcheon products simultaneously, and the side is loosed core formula briquetting subassembly and can be prevented that the product adhesion is on the cope match-plate pattern when the mould die sinking, and after the mould die sinking, the side is loosed core formula briquetting subassembly and can be broken away from with the product, thereby the ejecting subassembly of short stroke can make product and lower bolster break away from with the product one section distance of upwards ejecting automatically to improve the ejecting efficiency of product.
2. After the side formula of loosing core briquetting subassembly breaks away from with the product, thereby the spring can drive and directly push up the bullet piece upward movement and can upwards be ejecting with the product, makes the product break away from with the lower bolster, thereby thimble fixed plate upward movement can drive straight ejector pin and directly push up the bullet piece upward movement can be ejecting with the product afterwards, directly pushes up the bullet piece and can also reduce the required stroke of ejecting thimble fixed plate from the lower bolster with the product.
3. When the mould is opened, the briquetting can be fixed the product to prevent the product adhesion on the cope match-plate pattern, during the cope match-plate pattern upward movement, actuating lever 15 can drive and loose core slider and briquetting and outside lateral translation, after a section distance of cope match-plate pattern upward movement, loose core slider and briquetting can horizontal migration to briquetting and product break away from, so that the product is ejecting.
4. When the ejector pin fixing plate moves upwards, the inclined ejector rod and the inclined ejector block can move upwards along the inclined direction and are matched with the straight ejection elastic block to eject out a product, and the inclined ejector block can also move outwards horizontally compared with the product so as to separate the inclined ejector block from the side part of the product.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of the lower template;
FIG. 3 is a schematic cross-sectional view of the lower platen;
FIG. 4 is a schematic view of the internal structure of the lower template.
In the figure: the device comprises an upper template 1, a lower template 2, a forming cavity 3, an ejector pin fixing plate 4, a short-stroke ejection assembly 5, a side core-pulling type pressing block assembly 6, a straight ejector rod 7, an anti-adhesion elastic block structure 8, a straight ejector block 9, a spring mounting cavity 10, a spring 11, a pressing block 12, a core-pulling sliding block 13, a side core-pulling assembly 14, a driving rod 15, a sliding block limiting structure 16, a limiting plate 17, a limiting sliding groove 18, an inclined top core-pulling structure 20, an inclined top rod 21, an inclined top block 22, a straight top pin 23, an injection molding pipe 24 and a connecting flow channel 25.
Detailed Description
As shown in fig. 1-4, an anti-sticking mould elastic block demoulding mechanism of a vehicle headlamp middle plate decoration frame injection mould comprises an upper template 1 and a lower template 2, the upper template 1 and the lower template 2 are internally provided with two forming cavities 3, the cross section of each forming cavity 3 is arc-shaped, the lower side of the lower template 2 is provided with an ejector fixing plate 4, the ejector fixing plate 4 is provided with a short-stroke ejection assembly 5 for preventing the adhesion of a product and the lower template 2, and the lower template 2 is further provided with a side core-pulling type pressing block assembly 6 for preventing the adhesion of the product and the upper template 1.
In this embodiment, two molding cavities between cope match-plate pattern and the lower bolster can two head-light medium plate dress escutcheon products of injection moulding simultaneously, and the side is loosed core formula briquetting subassembly and can be prevented when the mould die sinking product adhesion on the cope match-plate pattern, and after the mould die sinking, the side is loosed core formula briquetting subassembly and can be broken away from with the product, thereby the ejecting subassembly 5 of short stroke can make product and lower bolster break away from with the product one section distance that makes progress to improve the ejecting efficiency of product.
Specifically, as shown in fig. 1 to 4, the short-stroke ejection assembly 5 includes a plurality of straight ejector rods 7 vertically fixed on the ejector pin fixing plate 4, and an anti-adhesion elastic block structure 8 is disposed on the top of the straight ejector rods 7. Anti-adhesion bullet piece structure 8 includes the straight ejection of compact piece 9 that links to each other with straight ejector pin 7, straight ejection of compact piece 9 imbed in lower bolster 2 and the top links to each other with profiled cavity 3, straight ejector pin 7 insert to in the straight ejection of compact piece 9 and with straight ejection of compact piece 9 sliding connection, straight ejector pin 7 top be equipped with spring mounting chamber 10, spring mounting chamber 10 in link firmly the spring 11 that sets up, spring 11 top and straight ejection of compact piece 9 link firmly. After side formula of loosing core briquetting subassembly 6 breaks away from with the product, thereby spring 11 can drive straight ejection of bullet piece upward movement can make the product break away from with the lower bolster, thereby thimble fixed plate upward movement can drive straight ejector pin and straight ejection of bullet piece upward movement can be ejecting with the product afterwards, and straight ejection of bullet piece can also reduce the required stroke of ejecting thimble fixed plate with the product from the lower bolster.
Specifically, as shown in fig. 1 to 4, the side core pulling type press block assembly 6 includes a press block 12 horizontally inserted from the outside to the side of the molding cavity 3, the lower mold plate 2 is further provided with a core pulling slider 13 connected to the press block 12, and the upper mold plate 1 is provided with a side core pulling assembly 14 connected to the core pulling slider 13. The side core-pulling assembly 14 comprises two driving rods 15 fixed on the upper template 1, the driving rods 15 are obliquely arranged and inserted into the core-pulling slider 13 along the oblique direction and are in sliding connection with the core-pulling slider 13, and the lower template 2 is further provided with a slider limiting structure 16. When the mould is opened, the briquetting can be fixed the product to prevent the product adhesion on the cope match-plate pattern, during the cope match-plate pattern upward movement, actuating lever 15 can drive and loose core slider and briquetting and outside lateral translation, after a section distance of cope match-plate pattern upward movement, loose core slider and briquetting can horizontal migration to briquetting and product break away from, so that the product is ejecting.
Specifically, as shown in fig. 1 to 4, the slider limiting structure 16 includes limiting plates 17 disposed on two sides of the core-pulling slider 13, a limiting sliding groove 18 is disposed on a lower side of the limiting plate 17, and limiting sliders inserted into the limiting sliding groove 18 are disposed on two sides of the core-pulling slider 13. The limiting plate 17 cooperates the limiting slide block to prevent the core-pulling slide block from moving in the vertical direction, and the limiting slide groove cooperates the limiting slide block to limit the core-pulling slide block so as to prevent the core-pulling slide block from shifting when moving.
Preferably, as shown in fig. 1-4, the thimble fixing plate 4 is further provided with an inclined thimble core pulling structure 20. The inclined ejection core-pulling structure 20 comprises an inclined ejector rod 21 hinged with the ejector pin fixing plate 4, and an inclined ejector block 22 connected with the inner side wall of the forming cavity 3 is arranged at the top of the inclined ejector rod 21. When the ejector pin fixing plate moves upwards, the inclined ejector rod and the inclined ejector block can move upwards along the inclined direction and are matched with the straight ejection elastic block to eject out a product, and the inclined ejector block can also move outwards horizontally compared with the product so as to separate the inclined ejector block from the side part of the product.
Preferably, as shown in fig. 1 to 4, a plurality of straight needles 23 are further disposed on the needle fixing plate 4, and tops of the straight needles 23 penetrate through the lower mold plate 2 and are connected to the molding cavity 3. The thimble fixing plate can also drive the straight thimble to move upwards so as to be matched with the straight ejector rod and the straight ejector block to eject the product.
Specifically, as shown in fig. 1 to 4, an injection molding pipe 24 is arranged on the upper mold plate 1, the injection molding pipe 24 is positioned between the two molding cavities 3 and is connected with the two molding cavities 3 through a connecting runner 25, and the bottom of the injection molding pipe 24 is flush with the highest position of the molding cavities 3. The injection molding pipe 24 can inject injection molding liquid into the molding cavity through the connecting flow channel, and the bottom of the injection molding pipe is flush with the highest position of the molding cavity, so that the injection molding pressure required by the flow of the injection molding liquid in the molding cavity can be reduced.
The utility model discloses a theory of operation is: two molding cavities between the upper template and the lower template can simultaneously perform injection molding on two headlamp middle plate decoration frame products, the side core pulling type pressing block assembly can prevent the products from being adhered to the upper template when the mold is opened, the side core pulling type pressing block assembly can be separated from the products after the mold is opened, and the short-stroke ejection assembly 5 can automatically eject the products upwards for a distance so as to separate the products from the lower template, so that the ejection efficiency of the products is improved;
after the side core pulling type press block assembly 6 is separated from a product, the spring 11 can drive the straight ejection elastic block to move upwards so as to eject the product upwards, so that the product is separated from the lower template, then the ejector pin fixing plate moves upwards to drive the straight ejector pin and the straight ejection elastic block to move upwards so as to eject the product, the straight ejection elastic block can also reduce the stroke required for ejecting the product from the lower template to the ejector pin fixing plate, when the mold is opened, the press block can fix the product so as to prevent the product from being adhered to the upper template, when the upper template moves upwards, the driving rod 15 can drive the core pulling slide block and the press block to move outwards, when the upper template moves upwards for a certain distance, the core pulling slide block and the press block can move horizontally until the press block is separated from the product so as to facilitate ejection of the product, the limiting plate 17 is matched with the limiting slide block so as to prevent the core pulling slide block from moving vertically, and the limiting chute is matched with the limiting slide block so as to limit the core pulling slide block so as to prevent the core pulling slide block from shifting during movement;
when the ejector pin fixed plate upward movement, oblique ejector pin and oblique kicking block can follow the incline direction upward movement and cooperate the straight kicking block ejecting the product, when ejecting, thereby the oblique kicking block can also be compared in the horizontal outward movement of product and can make oblique kicking block and product lateral part break away from, ejector pin fixed plate upward movement can also drive straight thimble upward movement with the cooperation straight ejector pin with straight kicking block ejecting the product, injection molding pipe 24 can pour into the injection molding liquid into the shaping intracavity through connecting the runner, the injection molding socle portion flushes with the highest point that becomes the shaping chamber and can reduce the required injection molding pressure of injection molding liquid flow in the shaping intracavity.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the upper mold plate 1, the lower mold plate 2, the molding cavity 3, the ejector pin fixing plate 4, the short stroke ejection assembly 5, the side core pulling type press block assembly 6, the straight ejector rod 7, the anti-adhesion elastic block structure 8, the straight ejector elastic block 9, the spring installation cavity 10, the spring 11, the press block 12, the core pulling slide block 13, the side core pulling assembly 14, the driving rod 15, the slide block limiting structure 16, the limiting plate 17, the limiting chute 18, the inclined ejector core pulling structure 20, the inclined ejector rod 21, the inclined ejector block 22, the straight ejector pin 23, the injection molding pipe 24, the connecting runner 25, etc. are used more frequently herein, these terms are used only for more conveniently describing and explaining the essence of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.
Claims (10)
1. The utility model provides an anti-sticking mould elastic block demoulding mechanism of vehicle headlamps medium plate dress escutcheon injection mould, includes cope match-plate pattern (1) and lower bolster (2), its characterized in that, cope match-plate pattern (1) and lower bolster (2) in be equipped with two molding chamber (3), the cross-section in molding chamber (3) be the arc, lower bolster (2) downside be equipped with ejector fixing plate (4), ejector fixing plate (4) on be equipped with short stroke ejecting subassembly (5) that prevent product and lower bolster (2) adhesion, lower bolster (2) on still be equipped with the formula of loosing core pressure block subassembly (6) that are used for preventing product and cope match-plate pattern (1) adhesion.
2. The demoulding mechanism for the anti-sticking elastic block of the injection mould of the middle plate decorative frame of the automobile headlamp as claimed in claim 1, wherein the short-stroke ejection assembly (5) comprises a plurality of straight ejector rods (7) vertically fixed on the ejector pin fixing plate (4), and the tops of the straight ejector rods (7) are provided with anti-sticking elastic block structures (8).
3. The demolding mechanism for the anti-sticking elastic block of the injection mold of the middle plate decoration frame of the automobile headlamp as claimed in claim 2, wherein the anti-sticking elastic block structure (8) comprises a straight ejection elastic block (9) connected with a straight ejector rod (7), the straight ejection elastic block (9) is embedded into the lower template (2) and the top of the straight ejection elastic block is connected with the molding cavity (3), the straight ejector rod (7) is inserted into the straight ejection elastic block (9) and is in sliding connection with the straight ejection elastic block (9), a spring installation cavity (10) is arranged at the top of the straight ejector rod (7), a spring (11) is fixedly connected with the spring installation cavity (10), and the top of the spring (11) is fixedly connected with the straight ejection elastic block (9).
4. The demoulding mechanism for the anti-sticking mould elastic block of the injection mould of the middle plate decorative frame in the automobile headlamp according to claim 1, characterized in that the side core pulling type pressing block component (6) comprises a pressing block (12) horizontally inserted into the side part of the forming cavity (3) from the outer side, a core pulling sliding block (13) connected with the pressing block (12) is further arranged on the lower template (2), and a side core pulling component (14) connected with the core pulling sliding block (13) is arranged on the upper template (1).
5. The demoulding mechanism for the anti-sticking elastic block of the injection mould of the automobile headlamp middle plate decoration frame is characterized in that the side core-pulling assembly (14) comprises two driving rods (15) fixed on the upper template (1), the driving rods (15) are obliquely arranged and are inserted into the core-pulling slide block (13) along the oblique direction and are in sliding connection with the core-pulling slide block (13), and a slide block limiting structure (16) is further arranged on the lower template (2).
6. The demoulding mechanism for the anti-sticking mould elastic block of the injection mould of the middle plate decorative frame in the automobile headlamp according to claim 5, characterized in that the slider limiting structure (16) comprises limiting plates (17) arranged at two sides of the core-pulling slider (13), a limiting sliding groove (18) is arranged at the lower side of each limiting plate (17), and limiting sliders inserted into the limiting sliding grooves (18) are arranged at two sides of the core-pulling slider (13).
7. The demoulding mechanism for the anti-sticking mould elastic block of the injection mould of the middle plate decorative frame of the automobile headlamp according to claim 1, characterized in that an inclined ejector core-pulling structure (20) which is obliquely arranged is further arranged on the ejector fixing plate (4).
8. The demoulding mechanism for the anti-sticking elastic block of the injection mould of the middle plate decorative frame of the automobile headlamp according to claim 7, characterized in that the core pulling structure (20) of the inclined top comprises an inclined top rod (21) hinged with the ejector fixing plate (4), and the top of the inclined top rod (21) is provided with an inclined top block (22) connected with the inner side wall of the forming cavity (3).
9. The demoulding mechanism for the anti-sticking mould elastic block of the injection mould of the middle plate decoration frame in the automobile headlamp according to claim 1, characterized in that a plurality of vertically arranged straight thimbles (23) are further arranged on the thimble fixing plate (4), and the tops of the straight thimbles (23) penetrate through the lower template (2) and are connected with the forming cavity (3).
10. The demoulding mechanism of the anti-sticking mould elastic block of the injection mould of the middle plate decorative frame of the automobile headlamp as claimed in claim 1 is characterized in that an injection pipe (24) is arranged on the upper template (1), the injection pipe (24) is positioned between the two molding cavities (3) and is connected with the two molding cavities (3) through a connecting runner (25), and the bottom of the injection pipe (24) is flush with the highest position of the molding cavities (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123121328.3U CN217257949U (en) | 2021-12-13 | 2021-12-13 | Anti-sticking mold elastic block demolding mechanism for injection mold of medium plate decoration frame of automobile headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123121328.3U CN217257949U (en) | 2021-12-13 | 2021-12-13 | Anti-sticking mold elastic block demolding mechanism for injection mold of medium plate decoration frame of automobile headlamp |
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| CN217257949U true CN217257949U (en) | 2022-08-23 |
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| CN202123121328.3U Active CN217257949U (en) | 2021-12-13 | 2021-12-13 | Anti-sticking mold elastic block demolding mechanism for injection mold of medium plate decoration frame of automobile headlamp |
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