CN210453388U - Secondary ejection die mechanism - Google Patents

Secondary ejection die mechanism Download PDF

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Publication number
CN210453388U
CN210453388U CN201921071023.6U CN201921071023U CN210453388U CN 210453388 U CN210453388 U CN 210453388U CN 201921071023 U CN201921071023 U CN 201921071023U CN 210453388 U CN210453388 U CN 210453388U
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Prior art keywords
ejection
plate
movable block
die
column
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CN201921071023.6U
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Chinese (zh)
Inventor
李子君
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Xiamen Meituo Precision Mould Co ltd
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Xiamen Meituo Precision Mould Co ltd
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Abstract

The utility model discloses an ejecting mould mechanism of secondary relates to shaping processing tool technical field. The technical key points are as follows: the utility model provides a secondary ejection die mechanism, which comprises a fixed die, the movable mould, two bottom plates, last ejector plate and lower ejector plate between two bottom plates, sliding connection has the mold insert of wearing out its mould benevolence in the cover half, the caulking groove has been seted up to the one side of ejector plate on the lower ejector plate orientation, sliding connection has the movable block in the caulking groove, the interval is provided with fore-set and ejector pin between movable mould and the movable block, the ejector pin is provided with the conical surface towards the week side of the one end of movable block, the locating hole of two is seted up to the movable block, the conical surface pass the ejector plate and with the inner wall butt of locating hole, the one end of caulking groove is provided with the elastic component with the movable block butt, two through-holes that supply the fore-set and the ejector pin. The utility model has the advantages of that the product can be easily separated from the mould core and the appearance is not affected by the thimble print on the product.

Description

Secondary ejection die mechanism
Technical Field
The utility model relates to a forming tool technical field, more specifically say, it relates to a secondary ejection die mechanism.
Background
A die is a tool that forms a blank into an article having a particular shape and size under the action of an external force. The cutting edge is widely used for blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting, and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like, and has a specific contour or inner cavity shape, and the blank can be separated according to the contour shape by applying the contour shape with the cutting edge. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated and closed, wherein a workpiece is taken out when the movable mold and the fixed mold are separated, and a blank is injected into a mold cavity for forming when the movable mold and the fixed mold are closed.
The traditional mold is mostly ejected once, products with more inner holes or hole sites and incapable of placing thimbles in deep cavities can only be ejected by means of thickening a feed port and a slag discharge port, sand holes are easy to form at the feed port and the slag discharge port of the products, the appearance of the products is affected, or the products are easy to be stuck to the film, so that the service life of the mold is affected. Because the packing force between the mold insert and the product is large, the product is directly ejected out at one time, the required force is large, and the product is easy to have a thimble mark, so that the appearance of the product can not meet the requirements of customers or the requirements can be met by adding subsequent processes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a secondary ejection die mechanism, it has the product and can break away from mould benevolence easily and still can not appear the thimble seal on the product and influence the advantage of outward appearance.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a secondary ejection die mechanism comprises a fixed die, a movable die, two bottom plates arranged at intervals, an upper ejection plate and a lower ejection plate which are positioned between the two bottom plates, and an ejector pin fixedly connected with the upper ejection plate, wherein the ejector pin is fixedly connected with the upper ejection plate, the insert which penetrates out of a die core of the fixed die is in sliding connection with the fixed die, one surface of the lower ejection plate, which faces the upper ejection plate, is provided with an embedded groove, a movable block is in sliding connection with the embedded groove, one surface of the movable die, which faces the upper ejection plate, is fixedly provided with an ejection column which penetrates through the upper ejection plate and is abutted against one surface of the movable block, which faces the upper ejection plate, a push column is arranged between the fixed die and the lower ejection plate, one end of the push column, which faces the movable block, is provided with a conical surface, the tip of the conical surface faces the lower ejection plate, the movable block is provided with two positioning holes, and the, the conical surface penetrates through the upper ejection plate and is abutted against the inner wall of the positioning hole, one end of the embedded groove is provided with an elastic piece abutted against the movable block, and the lower ejection plate is provided with two through holes for the ejection column and the push column to penetrate through in the secondary ejection process.
By adopting the technical scheme, when the mold is opened, the fixed mold and the movable mold are separated, the upper ejection plate and the lower ejection plate start to eject, the movable block pushes the ejection column to eject towards the direction of opening the mold, the ejection column drives the movable mold to eject towards the direction of opening the mold, the mold insert does not move because the mold insert and the fixed mold are in sliding connection without corresponding driving force, a product can eject towards the direction of opening the mold along with the movable mold and is separated from the mold insert, meanwhile, when the upper ejection plate and the lower ejection plate move towards the direction of opening the mold, the ejection column does not move, the conical surface extrudes the inner walls of the positioning holes to enable the movable block to move towards the direction of the elastic part, when the movable block moves to the highest point of the conical surface, the movable block moves to the position where two positioning holes are respectively aligned with the ejection needle and the ejection column, the ejection needle and the ejection column fall into the positioning holes, the mold insert is thoroughly separated from the product, the first ejection, the ejection column and the ejection column can penetrate through the through hole and cannot continue to move along with the upper top plate and the lower top plate in the direction of opening the die, the fixed die also can stop moving along with the ejection column, the ejector pin continues to move forward along with the upper ejection plate and the lower ejection plate, so that a product is separated from the die, ejection for the second time is completed, the product is ejected by a method of separating the product from the insert and then separating the product from the movable die, the product is separated from the die core more easily, and meanwhile, the appearance of the product cannot be influenced due to the fact that the ejector pin is printed.
Furthermore, the elastic part is a spring, and the axial direction of the spring is consistent with the length direction of the movable block.
By adopting the technical scheme, the spring has good elasticity and large acceptable deformation degree, and the force required by deformation is smaller, so that the conical surface can save more labor when pushing the movable block to compress the spring.
Furthermore, the size of the two through holes is larger than the cross sections of the ejection column and the push column at the same time.
Through adopting above-mentioned technical scheme, when ejecting for the second time, even two through-holes do not aim at with the fore-set and the post that pushes away very, the fore-set also can pass the through-hole with the post that pushes away, avoids making the fore-set and the post that pushes away to continue to appear along with the condition of ejecting board under and the ejecting board because the operation deviation, improves the stability of operation.
Further, a base plate is arranged between the fixed die and the upper ejection plate, and one surface of the base plate, facing the upper ejection plate, is fixed with one surface of the base plate, facing the fixed die.
Through adopting above-mentioned technical scheme, the backing plate has limiting displacement, and when ejecting for the second time, the backing plate can restrict the distance of ejector plate and lower ejector plate toward the die sinking direction motion, avoids the thimble excessive movement, improves the stability of operation.
Compared with the prior art, the beneficial effects of the utility model are that:
through setting up fore-set, ejector pin, movable block, conical surface and spring, conical surface promotes the movable block extrusion spring and realizes ejecting for the first time, and the fore-set promotes the cover half and makes product and mold insert separation, and the thimble continues to move after that and divides the separation with the product and movable mould, accomplishes ejecting for the second time for the product separates with the mould more easily, protects the pleasing to the eye of product outward appearance.
Drawings
FIG. 1 is a state diagram of the assembly of a movable mold and a fixed mold;
FIG. 2 is a diagram showing the opening of the movable mold and the fixed mold;
fig. 3 is a state diagram of completion of the first ejection;
fig. 4 is a state diagram of completion of the second ejection.
Reference numerals: 1. fixing a mold; 2. moving the mold; 3. a base plate; 4. lifting the top plate; 5. a lower ejector plate; 6. a thimble; 7. an insert; 8. b, plate; 9. a base plate; 10. caulking grooves; 11. a movable block; 12. positioning holes; 13. a top pillar; 14. pushing the column; 15. a conical surface; 16. a spring; 17. and a through hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a secondary ejection die mechanism comprises a fixed die 1, a movable die 2, two bottom plates 3 arranged at intervals, an upper ejection plate 4 and a lower ejection plate 5 positioned between the two bottom plates 3, and an ejector pin 6 fixed with the upper ejection plate 4 and the lower ejection plate 5, which are sequentially arranged from a die assembly direction, wherein the cross section of the bottom plate 3 is in an L shape, the two bottom plates are arranged oppositely, and one end of the ejector pin 6 far away from the upper ejection plate penetrates through the fixed die 1 and is in sliding connection with the fixed die 1. An insert 7 is connected in the fixed die 1 in a sliding manner, and one end of the insert 7, which is far away from the upper ejection plate 4, extends into the die core of the fixed die 1. A B plate 8 and a backing plate 9 are arranged between the upper top plate and the fixed die 1, the backing plate 9 is close to the upper top plate, one side of the backing plate 9 facing the bottom plate 3 is fixed with the bottom plate 3, and the B plate 8 is close to the movable die 2.
An embedding groove 10 is formed in one surface, facing the upper ejection plate 4, of the lower ejection plate 5, a movable block 11 is connected in the embedding groove 10 in a sliding mode, and two positioning holes 12 are formed in the movable block 11 at intervals. An ejection column 13 fixed with the movable die 2 and a push column 14 fixed with the B plate 8 are arranged between the movable die 2 and the movable block 11 at intervals, the distance between the ejection column 13 and the push column 14 is consistent with the distance between the two positioning holes 12, and the sizes of the two positioning holes 12 are respectively consistent with the ejection column 13 and the push column 14. The top pillar 13 penetrates through the B plate 8, the backing plate 9 and the upper top plate, one end of the top pillar facing the movable block 11 is abutted to one surface of the movable block 11 facing the upper ejection plate 4, and the push pillar 14 penetrates through the B plate 8 and the backing plate 9. A conical surface 15 is provided on the periphery of the end of the push column 14 facing the movable block 11, the conical head of the conical surface 15 faces the lower ejector plate 5, and the conical surface 15 passes through the upper ejector plate 4 and abuts against the inner wall of the positioning hole 12.
An elastic piece is arranged at one end of the caulking groove 10 close to the push column 14, the elastic piece is a spring 16, the axial direction of the spring 16 is consistent with the length direction of the movable block 11, and one end of the spring 16 facing the movable block 11 is abutted against the movable block 11. Two through holes respectively aligned with the ejection column 13 and the push column 14 are formed in the lower ejection plate 5, the size of each through hole is larger than the cross section of each of the ejection column 13 and the push column 14, and the size design is convenient for the ejection column 13 and the push column 14 to penetrate through the lower ejection plate 5.
The working process of the utility model is as follows:
as shown in fig. 2 and 3, when the mold is opened, the fixed mold 1 and the movable mold 2 are separated, the upper ejector plate 4 and the lower ejector plate 5 start to eject, the movable block 11 pushes the ejector pin 13 to eject in the direction of opening the mold, the ejector pin 13 drives the movable mold 2 to eject in the direction of opening the mold, the insert 7 does not move because the insert 7 and the fixed mold 1 are slidably connected and have no corresponding pushing force, the product will be ejected in the direction of opening the mold following the movable mold 2 and separated from the insert 7, meanwhile, when the upper ejector plate 4 and the lower ejector plate 5 move in the direction of opening the mold, the ejector pin 14 does not move, the conical surface 15 extrudes the inner wall of the positioning hole 12 to move the movable block 11 in the direction of the elastic member, when the movable block 11 moves to the highest point of the conical surface 15, the movable block 11 moves to the position where the two positioning holes 12 are aligned with the ejector pin 6 and the ejector pin 14 respectively, the ejector pin 6 and the ejector pin 14 fall into, the first ejection is completed.
As shown in fig. 4, when the movable block 11 moves to the highest point of the conical surface 15, the upper ejection plate 4 and the lower ejection plate 5 are pushed toward the mold opening direction, the ejection posts 13 and the ejection posts 14 pass through the through holes and cannot continue to move along with the upper top plate and the lower top plate toward the mold opening direction, the fixed mold 1 also stops moving along with the ejection posts 13, and the ejector pins 6 continue to move forward along with the upper ejection plate 4 and the lower ejection plate 5, so that the product is separated from the mold, and the second ejection is completed.
The utility model has the advantages as follows: the product is separated from the insert 7 through the first ejection, and then separated from the moving die 2 through the second ejection, so that the product is separated from the die core more easily, and meanwhile, the appearance of the product cannot be influenced due to the fact that the thimble 6 is printed.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. A secondary ejection die mechanism comprises a fixed die (1), a movable die (2), two bottom plates (3) arranged at intervals, an upper ejection plate (4) and a lower ejection plate (5) arranged between the two bottom plates (3) and an ejector pin (6) fixedly connected with the upper ejection plate (4), and is characterized in that an insert (7) which penetrates out of a die core of the fixed die (1) in a sliding manner is arranged in the fixed die (1), one side of the lower ejection plate (5) facing the upper ejection plate (4) is provided with an embedding groove (10), a movable block (11) is connected in the embedding groove (10) in a sliding manner, one side of the movable die (2) facing the upper ejection plate (4) is fixedly provided with an ejection column (13) which penetrates through the upper ejection plate (4) and is abutted against one side of the movable block (11) facing the upper ejection plate, and a push column (14) is arranged between the fixed die (1) and the lower ejection plate (5), the ejection mechanism is characterized in that a conical surface (15) is arranged at one end, facing the movable block (11), of the ejection column (14), a pointed end of the conical surface (15) faces the downward ejection plate (5), the movable block (11) is provided with two positioning holes (12), the distance between the two positioning holes (12) is equal to the distance between the ejection column (13) and the ejection column (14), the conical surface (15) penetrates through the upper ejection plate (4) and is abutted to the inner wall of the positioning holes (12), one end of the caulking groove (10) is provided with an elastic part abutted to the movable block (11), and the lower ejection plate (5) is provided with two through holes (17) for the ejection column (13) and the ejection column (14) to penetrate in the second ejection process.
2. The secondary ejection die mechanism according to claim 1, wherein the elastic member is a spring (16), and an axial direction of the spring (16) is consistent with a length direction of the movable block (11).
3. A two-shot mould mechanism as claimed in claim 1, characterised in that both said through holes (17) are larger than the cross-section of the ejector columns (13) and the ejector columns (14).
4. The double ejection die mechanism according to claim 1, wherein a backing plate (9) is arranged between the fixed die (1) and the upper ejection plate (4), and one surface of the backing plate (9) facing the upper ejection plate (4) is fixed with one surface of the bottom plate (3) facing the fixed die (1).
CN201921071023.6U 2019-07-10 2019-07-10 Secondary ejection die mechanism Active CN210453388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921071023.6U CN210453388U (en) 2019-07-10 2019-07-10 Secondary ejection die mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921071023.6U CN210453388U (en) 2019-07-10 2019-07-10 Secondary ejection die mechanism

Publications (1)

Publication Number Publication Date
CN210453388U true CN210453388U (en) 2020-05-05

Family

ID=70444745

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921071023.6U Active CN210453388U (en) 2019-07-10 2019-07-10 Secondary ejection die mechanism

Country Status (1)

Country Link
CN (1) CN210453388U (en)

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