CN211105410U - Double-layer push plate for reducing thickness of die - Google Patents
Double-layer push plate for reducing thickness of die Download PDFInfo
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- CN211105410U CN211105410U CN201921798317.9U CN201921798317U CN211105410U CN 211105410 U CN211105410 U CN 211105410U CN 201921798317 U CN201921798317 U CN 201921798317U CN 211105410 U CN211105410 U CN 211105410U
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Abstract
The utility model discloses a reduce double-deck push pedal of mould thickness relates to injection mold technical field, aims at solving central needle and installs the increase mould gross thickness on the movable mould bottom plate, and the restriction of mould gross thickness can't be suitable for all make-up machines, reduces the problem of equipment availability factor. The central needle fixing plate is fixed on the bottom plate of the movable die, a first groove for accommodating the central needle hanging table is formed in the bottom surface of the central needle fixing plate, and an ejection piece is arranged on the bottom surface of the second push plate. When the mold is ejected, the ejector pins of the product are ejected forwards by the first push plate and the second push plate, so that the product is separated from the center pin, the center pin fixing plate and the movable mold bottom plate are fixed together and cannot be started, the total thickness of the mold is not occupied by the double-layer push plate design for reducing the thickness of the mold, the range of the molding machine which can be selected during production is wider, and the purposes of improving the applicability and the use efficiency of the equipment are achieved.
Description
Technical Field
The utility model belongs to the technical field of injection mold's technique and specifically relates to a reduce double-deck push pedal of mould thickness.
Background
In injection molding, conventional molds having a center pin configuration typically employ a center pin to effect demolding of the injection molded product.
Referring to fig. 1, a molded product 1 and a center needle 2 inserted into the bottom surface of the molded product 1, the center needle 2 sequentially penetrates through a push plate and a movable mold plate, and the bottom of the center needle 2 is fixed on a movable mold bottom plate. The center needle 2 includes a cylindrical center needle bar 21 and a center needle hanging table 22 integrally formed with the center needle bar 21, and the center needle hanging table 22 is cylindrical. The center needle hanging table 22 is located at one end of the center needle bar 21 and the outer diameter of the center needle hanging table 22 is larger than that of the center needle bar 21.
The above prior art solutions have the following drawbacks: the total thickness of the die can be increased when the central needle 2 is arranged on the bottom plate of the movable die, and the die cannot be applied to all forming machines due to the limitation of the total thickness of the die, so that the applicability and the use efficiency of equipment are reduced; and the length of the central needle 2 cannot be shortened, so that the processing difficulty and the precision requirement of the central needle 2 are increased, the processing cost and the processing time of the die are increased, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reduce double-deck push pedal of mould thickness, it has the effect that reduces mould gross thickness, improve equipment suitability and availability factor.
The above technical purpose of the present invention can be achieved by the following technical solutions:
A double-layer push plate for reducing the thickness of a die comprises a central needle fixing plate, a second push plate and a first push plate which are parallel to each other and are sequentially arranged, wherein an ejector pin for ejecting a formed product is arranged on the top surface of the second push plate; the center needle fixing plate is fixed on the movable mold base plate, the center needle comprises a cylindrical center needle rod and a center needle hanging table connected to one end of the center needle rod, a first groove for accommodating the center needle hanging table is formed in the bottom surface of the center needle fixing plate, and an ejection piece for ejecting the second push plate and the first push plate is arranged on the bottom surface of the second push plate.
The utility model discloses further set up to: the ejector piece comprises an ejector rod arranged in the central needle fixing plate in a penetrating mode and an ejector plate parallel to the movable mold bottom plate, and the top end of the ejector rod abuts against the second push plate; the bottom surface of the movable mold bottom plate is provided with a containing groove for containing the ejector plate, and the depth of the containing groove is larger than the thickness of the ejector plate.
The utility model discloses further set up to: the ejector rods are arranged in parallel and are perpendicular to the top surface of the ejector plate.
The utility model discloses further set up to: and a push plate guide pillar is fixedly arranged on the movable mold base plate and sequentially penetrates through the center needle fixing plate, the push plate II, the push plate I and the movable mold bearing plate.
The utility model discloses further set up to: the center needle parallel arrangement has a plurality ofly, the thimble is also parallel arrangement has a plurality ofly and the thimble is the same with the quantity of center needle.
The utility model discloses further set up to: the thimble includes columniform thimble rod and connects the thimble string platform in thimble rod one end, set up the recess two that holds the thimble string platform on the bottom surface of push pedal one.
To sum up, the utility model discloses a beneficial technological effect does:
1. Through the arrangement of the central needle fixing plate and the ejection part, when the mold is ejected, the force acting on the ejection part drives the first push plate and the second push plate to move forwards, the central needle fixing plate and the movable mold bottom plate are fixed together and cannot be started, and the first push plate and the second push plate drive the product ejector pins to eject forwards, so that the product is separated from the central needle, the release action of the product is realized, when the movement reaches the preset ejection amount, namely the top surface of the ejection plate is abutted to the movable mold bottom plate to form a stop position, the ejection movement is stopped, the double-layer push plate design for reducing the thickness of the mold does not occupy the total thickness of the mold, the range of the molding machine which can be selected during production is wider, and the use efficiency of the equipment is improved;
2. The bottom surfaces of the two push plates are uniformly stressed by the arrangement of the plurality of ejector rods;
3. The structure is relatively simple, compared with the conventional mode, the method can be realized by only adding a small number of parts, and the method is particularly suitable for the small-diameter central needle occasion where the length of the central needle needs to be shortened to reduce the processing difficulty, so that the cost and the time for processing the fine needle are saved;
4. The requirement of higher positioning precision of the movable mould bottom plate relative to the push plate is avoided, the adverse effect on the stability and reliability of the action of the mould is reduced, and the stability during molding is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a molded product and a center pin in the prior art;
Fig. 2 is a schematic sectional structure diagram of the embodiment of the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
Fig. 4 is a schematic sectional structure diagram ii according to an embodiment of the present invention;
Fig. 5 is a schematic cross-sectional structure diagram three of the embodiment of the present invention.
In the figure, 1, a molded product; 2. a central needle; 21. a central needle bar; 22. a central needle hanging table; 3. a movable mold base plate; 31. accommodating grooves; 32. a push plate guide post; 4. a central needle fixing plate; 41. a first groove; 5. a second push plate; 6. pushing a first plate; 61. a second groove; 7. moving the template; 71. a movable mold supporting plate; 8. a thimble; 81. a thimble rod; 82. a thimble hanging table; 9. ejecting the part; 91. a top rod; 92. and ejecting the plate.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 2 and 3, for the utility model discloses a double-deck push pedal of reduction mould thickness, including push pedal two 5 and push pedal one 6 that are parallel to each other and set gradually, pass through the fix with screw between push pedal two 5 and the push pedal one 6 and be in the same place. A movable mold supporting plate 71 and a movable mold plate 7 are arranged above the first push plate 6 in parallel. A center needle fixing plate 4 is additionally arranged below a conventional die push plate II 5, a movable die bottom plate 3 is arranged on the bottom surface of the center needle fixing plate 4, and the center needle fixing plate 4 and the movable die bottom plate 3 are fixed together through screws. The center needle 2 includes a cylindrical center needle bar 21 and a center needle hanging table 22 integrally formed with the center needle bar 21, and the center needle hanging table 22 is cylindrical. The center needle hanging table 22 is located at one end of the center needle bar 21 and the outer diameter of the center needle hanging table 22 is larger than that of the center needle bar 21. The bottom surface of the central needle fixing plate 4 is provided with a groove I41 for accommodating the central needle hanging platform 22, the central needle rod 21 sequentially penetrates through the push plate II 5 and the push plate I6, and the bottom surface of the central needle hanging platform 22 is abutted against the top surface of the movable mould bottom plate 3. A push plate guide post 32 is fixed on the movable mould bottom plate 3 through a screw, and the push plate guide post 32 sequentially passes through the central needle fixing plate 4, the push plate two 5, the push plate one 6 and the movable mould supporting plate 71. The central needle fixing plate 4 is positioned between the push plate I6 and the push plate II 5 by utilizing the push plate guide post 32.
Referring to fig. 4 and 5, the ejector pin 8 for ejecting the molded product 1 is disposed on the top surface of the second ejector plate 5, the ejector pin 8 includes a cylindrical ejector pin rod 81 and an ejector pin hanging table 82 integrally molded with the ejector pin rod 81, and the ejector pin hanging table 82 is cylindrical. The needle hanging platform 82 is located at one end of the needle rod 81, and the outer diameter of the needle hanging platform 82 is larger than that of the needle rod 81. The bottom surface of the first push plate 6 is provided with a second groove 61 for accommodating the thimble hanging table 82, and the bottom surface of the thimble hanging table 82 is abutted against the top surface of the second push plate 5. Because the central needle 2 is provided with a plurality of parallel pins, the ejector pins 8 are also provided with a plurality of parallel pins, and the number of the ejector pins 8 is the same as that of the central needle 2.
Referring to fig. 4 and 5, the bottom surface of the second push plate 5 is provided with an ejector 9 for ejecting the second push plate 5 and the first push plate 6, and the ejector 9 is fixed on the second push plate 5 by screws. The ejector 9 comprises an ejector rod 91 penetrating through the central needle fixing plate 4 and an ejector plate 92 parallel to the movable mold bottom plate 3, and the top end of the ejector rod 91 is abutted to the second push plate 5. In this embodiment, two of the push rods 91 are disposed in parallel, and each push rod 91 is perpendicular to the top surface of the ejector plate 92, i.e. the section of the ejector member 9 is U-shaped. The bottom surface of the movable mold base plate 3 is provided with an accommodating groove 31 for accommodating the ejector plate 92, and the accommodating groove 31 penetrates through the bottom surface of the movable mold base plate 3 and does not penetrate through the top surface of the movable mold base plate 3. The depth of the receiving groove 31 is greater than the thickness of the ejector plate 92, and the reserved gap between the top surface of the ejector plate 92 and the inner top wall of the receiving groove 31 is the set ejector pin pushing amount. When the mold is ejected, the first push plate 6 and the second push plate 5 are driven to move forwards by the force acting on the ejection piece 9, the central needle fixing plate 4 and the movable mold bottom plate 3 are fixed together and cannot be started, and the product ejector pins 8 are driven to eject forwards by the movement of the first push plate 6 and the second push plate 5, so that the product is separated from the central needle 2, and the release action of the product is realized. When the movement reaches the preset ejection amount, namely the top surface of the ejector plate 92 is abutted to the movable mold bottom plate 3 to form a stop position, the ejection movement is stopped.
The implementation principle of the embodiment is as follows: when the mold is ejected, the first push plate 6 and the second push plate 5 are driven to move forwards by the force acting on the ejection piece 9, the central needle fixing plate 4 and the movable mold bottom plate 3 are fixed together and cannot be started, and the product ejector pins 8 are driven to eject forwards by the movement of the first push plate 6 and the second push plate 5, so that the product is separated from the central needle 2, and the release action of the product is realized. When the movement reaches the preset ejection amount, namely the top surface of the ejector plate 92 is abutted to the movable mold bottom plate 3 to form a stop position, the ejection movement is stopped.
Through add a center needle fixed plate 4 under conventional mould push pedal two 5, do not influence the mould gross thickness, the scope of the make-up machine that can choose during production is wider, improve equipment availability factor.
Because the length of the central needle 2 can be shortened, on one hand, the processing difficulty and the precision requirement of the central needle 2 are reduced, thereby reducing the processing cost and the processing time of the die; on the other hand, the adverse effect on the stable and reliable operation of the mold is reduced, and the molding stability is improved.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a reduce double-deck push pedal of mould thickness which characterized in that: the ejection mechanism comprises a central needle fixing plate (4), a second push plate (5) and a first push plate (6) which are parallel to each other and arranged in sequence, wherein an ejector pin (8) used for ejecting a molded product (1) is arranged on the top surface of the second push plate (5); the center needle fixing plate (4) is fixed on the movable mold bottom plate (3), the center needle (2) comprises a cylindrical center needle rod (21) and a center needle hanging table (22) connected to one end of the center needle rod (21), a first groove (41) for accommodating the center needle hanging table (22) is formed in the bottom surface of the center needle fixing plate (4), and an ejection piece (9) used for ejecting the push plate two (5) and the push plate one (6) is arranged on the bottom surface of the push plate two (5).
2. A double-layer pusher plate for reducing the thickness of a mold as defined in claim 1 wherein: the ejector piece (9) comprises an ejector rod (91) arranged in the central needle fixing plate (4) in a penetrating mode and an ejector plate (92) parallel to the movable mold bottom plate (3), and the top end of the ejector rod (91) abuts against the second push plate (5); the bottom surface of the movable mold bottom plate (3) is provided with an accommodating groove (31) for accommodating the ejector plate (92), and the depth of the accommodating groove (31) is larger than the thickness of the ejector plate (92).
3. A double-layer pusher plate for reducing the thickness of a mold according to claim 2 wherein: the ejector rods (91) are arranged in parallel, and each ejector rod (91) is perpendicular to the top surface of the ejector plate (92).
4. A double-layer pusher plate for reducing the thickness of a mold as defined in claim 1 wherein: and a push plate guide post (32) is fixedly arranged on the movable mould base plate (3), and the push plate guide post (32) sequentially penetrates through the central needle fixing plate (4), the push plate II (5), the push plate I (6) and the movable mould bearing plate (71).
5. A double-layer pusher plate for reducing the thickness of a mold as defined in claim 1 wherein: the center needle (2) is provided with a plurality of parallel pins, the ejector pins (8) are also provided with a plurality of parallel pins, and the number of the ejector pins (8) is the same as that of the center needle (2).
6. A double-layer pusher plate for reducing the thickness of a mold as defined in claim 5 wherein: the thimble (8) includes columniform thimble rod (81) and connects thimble hanging stand (82) in thimble rod (81) one end, set up on the bottom surface of push pedal (6) and hold the recess two (61) of thimble hanging stand (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921798317.9U CN211105410U (en) | 2019-10-24 | 2019-10-24 | Double-layer push plate for reducing thickness of die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921798317.9U CN211105410U (en) | 2019-10-24 | 2019-10-24 | Double-layer push plate for reducing thickness of die |
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| Publication Number | Publication Date |
|---|---|
| CN211105410U true CN211105410U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921798317.9U Active CN211105410U (en) | 2019-10-24 | 2019-10-24 | Double-layer push plate for reducing thickness of die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311432A (en) * | 2022-02-28 | 2022-04-12 | 东莞好景塑胶模具制造有限公司 | Asynchronous ejection die structure |
-
2019
- 2019-10-24 CN CN201921798317.9U patent/CN211105410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311432A (en) * | 2022-02-28 | 2022-04-12 | 东莞好景塑胶模具制造有限公司 | Asynchronous ejection die structure |
| CN114311432B (en) * | 2022-02-28 | 2023-11-14 | 东莞好景塑胶模具制造有限公司 | Asynchronous ejection die structure |
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