CN210733157U - Mold stripping mechanism for injection molding product - Google Patents
Mold stripping mechanism for injection molding product Download PDFInfo
- Publication number
- CN210733157U CN210733157U CN201921204811.8U CN201921204811U CN210733157U CN 210733157 U CN210733157 U CN 210733157U CN 201921204811 U CN201921204811 U CN 201921204811U CN 210733157 U CN210733157 U CN 210733157U
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- Prior art keywords
- cylinder
- top plate
- fixed
- mold
- die
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- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 238000001746 injection moulding Methods 0.000 title claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XBWAZCLHZCFCGK-UHFFFAOYSA-N 7-chloro-1-methyl-5-phenyl-3,4-dihydro-2h-1,4-benzodiazepin-1-ium;chloride Chemical compound [Cl-].C12=CC(Cl)=CC=C2[NH+](C)CCN=C1C1=CC=CC=C1 XBWAZCLHZCFCGK-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a mold stripping mechanism of an injection molding product, which comprises an upper mold, a lower mold, a mold core and a cylinder; mold legs are symmetrically fixed on the lower mold, a support plate is fixed on the mold legs, the mold core is fixed on the support plate, and a cavity is formed in the support plate and the mold core; a first top plate is arranged on the lower die, an ejector pin is fixed on the first top plate and penetrates through the die cavity, a second top plate is arranged on the first top plate, a through hole is formed in the second top plate and is in sliding connection with the ejector pin, a stripping rod is fixed on the second top plate and penetrates through the die cavity; the lower die is fixed with a cylinder fixing frame at the lower end, the cylinder is a secondary cylinder, the cylinder is welded and fixed on the cylinder fixing frame, a second cylinder of the cylinder is fixed on the bottom surface of the first top plate, and the extending end of a piston rod of the cylinder is fixed on the bottom surface of the second top plate. The secondary demoulding is adopted to reduce the damage of the workpiece, and the secondary cylinder can be used for resetting in time.
Description
Technical Field
The utility model relates to a mould of injection moulding product, concretely relates to demoulding mechanism of injection moulding product.
Background
The injection mold is an instrument for producing plastic products, the injection mold is composed of a movable mold and a fixed mold, the movable mold and the fixed mold are closed to form a pouring system and a cavity during injection molding, the movable mold and the fixed mold are separated to take out a plastic part during mold opening, a mechanism for pushing out the plastic part in the mold is a mold stripping mechanism, the plastic part is stressed unevenly during mold stripping, the plastic part is worn, the general mold stripping mechanism realizes resetting of the pushed plastic part by a spring, the spring is easy to damage and the clamping condition occurs, and damage to the ejector pin can be caused if the ejector pin is not reset timely.
Disclosure of Invention
The utility model aims at providing an ejection mechanism of injection moulding product to ejection process working of plastics atress is uneven among the solution prior art, and reset spring damages easily, the dead problem of card.
The mold stripping mechanism of the injection molding product comprises an upper mold, a lower mold, a mold core and a cylinder; mold legs are symmetrically fixed on the lower mold, a support plate is fixed on the mold legs, the mold core is fixed on the support plate, and a cavity is formed in the support plate and the mold core; a first top plate is arranged on the lower die, an ejector pin is fixed on the first top plate and penetrates through the die cavity, a second top plate is arranged on the first top plate, a through hole is formed in the second top plate and is in sliding connection with the ejector pin, a stripping rod is fixed on the second top plate and penetrates through the die cavity to be in sliding fit with the die core; the lower die is fixed with a cylinder fixing frame at the lower end, the cylinder is a secondary cylinder, the cylinder is welded and fixed on the cylinder fixing frame, the lower die is provided with a through hole, a second cylinder of the cylinder penetrates through the through hole and is fixed on the bottom surface of the first top plate, the first top plate is provided with a center hole, and the extending end of a piston rod of the cylinder penetrates through the center hole and is fixed on the bottom surface of the second top plate.
Preferably, the cylinder comprises a first cylinder barrel, a second cylinder barrel and a piston rod, the second cylinder barrel is sleeved with the first cylinder barrel, a piston is arranged in an inner cavity of the second cylinder barrel, and the piston rod is fixed on the piston and penetrates out of the inner cavity of the second cylinder barrel.
Preferably, guide pillars are symmetrically fixed between the lower die and the support plate, and the first top plate and the second top plate are in sliding fit with the guide pillars.
Preferably, the upper end of the thimble is in threaded connection with a sleeve, and the sleeve is matched with a convex part of a workpiece.
Preferably, the number of the thimbles is not less than two.
The utility model has the advantages that: the secondary air cylinder is used for carrying out secondary stripping on the workpiece, the acting force between the die and the workpiece is small when stripping is carried out each time, the forming integrity of the workpiece is high, and the die damage rate is low; the cylinder can drive thimble and ejector pin automatic re-setting, need not with the help of reset spring, the dead circumstances of card can not appear, can in time reset.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a sectional view of the cylinder of the present invention.
Fig. 3 is a partial schematic view of the thimble according to the present invention.
The forming die comprises a die 1, an upper die, a die 2, a die core 3, a cylinder 4, a first cylinder 41, a second cylinder 42, a piston rod 43, a piston 44, a cylinder fixing frame 5, a perforation 6, a die pin 7, a support plate 8, a die cavity 9, a guide post 10, a first top plate 11, an ejector pin 12, a second top plate 13, a stripping rod 14 and a sleeve 15.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided to help those skilled in the art to more fully, accurately and deeply understand the concept and technical solutions of the present invention, through the description of the embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model provides an ejector mechanism of injection molding products, which comprises an upper die 1, a lower die 2, a core 3 and a cylinder 4; mold feet 7 are symmetrically fixed on the lower mold 2, a support plate 8 is fixed on the mold feet 7, the mold core 3 is fixed on the support plate 8, and a cavity 9 is arranged on the support plate 8 and the mold core 3; a first top plate 11 is arranged on the lower die 2, an ejector pin 12 is fixed on the first top plate 11, the ejector pin 12 penetrates through the die cavity 9, a second top plate 13 is arranged on the first top plate 11, a through hole is formed in the second top plate 13 and is in sliding connection with the ejector pin 12, a stripping rod 14 is fixed on the second top plate 13, and the stripping rod 14 penetrates through the die cavity 9 and is in sliding fit with the die core 3; the lower end of the lower die 2 is fixed with a cylinder fixing frame 5, the cylinder 4 is a secondary cylinder, the cylinder 4 is welded and fixed on the cylinder fixing frame 5, the lower die 2 is provided with a through hole 6, a second cylinder 42 of the cylinder 4 penetrates through the through hole 6 and is fixed on the bottom surface of the first top plate 11, the first top plate 11 is provided with a central hole, and the extending end of a piston rod 43 of the cylinder 4 penetrates through the central hole and is fixed on the bottom surface of the second top plate 13.
In this embodiment, the air cylinder 4 includes a first cylinder 41, a second cylinder 42, and a piston rod 43, the second cylinder 42 is sleeved with the first cylinder 41, a piston 44 is disposed in an inner cavity of the second cylinder 42, and the piston rod 43 is fixed on the piston 44 and penetrates through the inner cavity of the second cylinder 42.
In this embodiment, guide posts 10 are symmetrically fixed between the lower mold 2 and the support plate 8, and the first top plate 11 and the second top plate 13 are slidably engaged with the guide posts 10.
In this embodiment, the thimble 12 is screwed with a sleeve 15 at the upper end, and the sleeve 15 is engaged with a protrusion of a workpiece.
In this embodiment, the number of the thimbles 12 is not less than two.
The utility model discloses a working process: the upper die and the lower die are firstly separated during stripping, then the second cylinder extends out to upwards push the first top plate, the ejector pin and the stripping rod are driven to eject the core of the workpiece out, then the piston rod extends out to upwards push the second top plate, the stripping rod is driven to eject the workpiece from the ejector pin, the second cylinder and the piston rod retract after stripping is finished, and the first top plate and the second top plate reset.
The above description is made for the exemplary purposes with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (5)
1. The utility model provides an ejection mechanism of injection moulding product which characterized in that: comprises an upper die (1), a lower die (2), a mold core (3) and a cylinder (4); mold feet (7) are symmetrically fixed on the lower mold (2), a supporting plate (8) is fixed on the mold feet (7), the mold core (3) is fixed on the supporting plate (8), and cavities (9) are arranged on the supporting plate (8) and the mold core (3); a first top plate (11) is arranged on the lower die (2), an ejector pin (12) is fixed on the first top plate (11), the ejector pin (12) penetrates through the die cavity (9), a second top plate (13) is arranged on the first top plate (11), a through hole is formed in the second top plate (13) and is in sliding connection with the ejector pin (12), an ejector rod (14) is fixed on the second top plate (13), and the ejector rod (14) penetrates through the die cavity (9) and is in sliding fit with the die core (3); the lower die is characterized in that a cylinder fixing frame (5) is fixed to the lower end of the lower die (2), the cylinder (4) is a secondary cylinder, the cylinder (4) is fixed to the cylinder fixing frame (5) in a welded mode, a through hole (6) is formed in the lower die (2), a second cylinder barrel (42) of the cylinder (4) penetrates through the through hole (6) and is fixed to the bottom surface of the first top plate (11), a center hole is formed in the first top plate (11), and the extending end of a piston rod (43) of the cylinder (4) penetrates through the center hole and is fixed to the bottom surface of the second top plate (13).
2. An ejector mechanism for an injection molded product according to claim 1, wherein: the air cylinder (4) comprises a first cylinder barrel (41), a second cylinder barrel (42) and a piston rod (43), the second cylinder barrel (42) is sleeved with the first cylinder barrel (41), a piston (44) is arranged in an inner cavity of the second cylinder barrel (42), and the piston rod (43) is fixed on the piston (44) and penetrates out of the inner cavity of the second cylinder barrel (42).
3. An ejector mechanism for an injection molded product according to claim 1, wherein: guide posts (10) are symmetrically fixed between the lower die (2) and the support plate (8), and the first top plate (11) and the second top plate (13) are in sliding fit with the guide posts (10).
4. An ejector mechanism for an injection molded product according to claim 1, wherein: the upper end of the thimble (12) is in threaded connection with a sleeve piece (15), and the sleeve piece (15) is matched with a convex part of a workpiece.
5. An ejector mechanism for an injection molded product according to claim 1, wherein: the number of the thimbles (12) is not less than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204811.8U CN210733157U (en) | 2019-07-29 | 2019-07-29 | Mold stripping mechanism for injection molding product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204811.8U CN210733157U (en) | 2019-07-29 | 2019-07-29 | Mold stripping mechanism for injection molding product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210733157U true CN210733157U (en) | 2020-06-12 |
Family
ID=70983997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921204811.8U Expired - Fee Related CN210733157U (en) | 2019-07-29 | 2019-07-29 | Mold stripping mechanism for injection molding product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210733157U (en) |
-
2019
- 2019-07-29 CN CN201921204811.8U patent/CN210733157U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200612 |