CN116100750B - Slide rail type straight top structure - Google Patents
Slide rail type straight top structureInfo
- Publication number
- CN116100750B CN116100750B CN202111317111.1A CN202111317111A CN116100750B CN 116100750 B CN116100750 B CN 116100750B CN 202111317111 A CN202111317111 A CN 202111317111A CN 116100750 B CN116100750 B CN 116100750B
- Authority
- CN
- China
- Prior art keywords
- pin
- straight
- straight jacking
- rail type
- jacking pin
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本发明系一种滑轨式直顶结构，涉及注塑模具技术领域，所述一种滑轨式直顶结构包括：直顶座，其固定于模具的顶出板中，该直销座上开设有容纳槽，设有销钉槽；直顶销，其包括尾部、直顶销杆及头部，所述尾部设于所述直顶座的容纳槽中，直顶销杆设有两处斜面及台阶，头部成型产品的卡勾；销钉，其贯穿所述直顶销的尾部，起到连接直顶座与直顶销的作用；本发明的一种滑轨式直顶结构,在产品比较小，倒勾多且退出方向不一样，制作传统斜销无法满足要求时，解决了斜销强度弱和干涉的问题，具备量产性。
This invention relates to a sliding rail type direct ejector structure, specifically in the field of injection mold technology. The sliding rail type direct ejector structure includes: a direct ejector seat, fixed in the ejector plate of the mold, the seat having a receiving groove and a pin groove; a direct ejector pin, comprising a tail, a pin rod, and a head, the tail being located in the receiving groove of the direct ejector seat, the pin rod having two inclined surfaces and a step, and the head having a hook for the formed product; and a pin penetrating the tail of the pin, serving to connect the direct ejector seat and the pin. This sliding rail type direct ejector structure solves the problems of weak strength and interference associated with traditional inclined pins when the product is small, has many undercuts, and different ejection directions, making it suitable for mass production.
Description
[ Field of technology ]
The invention relates to the technical field of injection molds, in particular to a sliding rail type straight ejection structure.
[ Background Art ]
In injection molding of plastic products, if the inner side of the product has a shape of a barb in the mold opening direction, the plastic product is usually molded by using an inclined pin. However, in response to the functional requirement of the product, a relatively small product is also provided with a plurality of barbs, as shown in fig. 1 and 2, wherein fig. 1 shows a schematic diagram of the product and fig. 2 shows a cross-sectional view of the product. The product 10 has 4 barbs 20, and the 4 barbs need to be formed by 4 taper pins in different directions, and because the product is smaller and the intermediate space is limited, the product is formed by adopting a general taper pin structure, the strength of 4 taper pins is very weak, and the 4 taper pins interfere with each other, so that the product cannot be realized that the 4 taper pins in the middle of the product simultaneously withdraw from the barbs 20 of the product 10.
In view of the foregoing, it is necessary to develop a sliding rail type straight top structure to solve the above-mentioned problems.
[ Invention ]
Therefore, the invention aims to provide a sliding rail type straight-top structure, which is applied to a die, meets the requirement of forming a plurality of inverted hooks in a smaller space, and solves the problems of weak strength and interference of a taper pin.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a straight top structure of slide rail formula, is applied to in the mould, the mould includes die cavity that public template, female template, liftout plate, public mould benevolence, female mould benevolence and public mould benevolence and female mould benevolence are constituteed, the shaping product in the die cavity, the product on have 4 barbs, a straight top structure of slide rail formula, it includes:
The straight ejection seat is fixed in the ejection plate of the die, and the inclined pin seat is provided with a containing groove and a pin groove;
The straight jacking pin comprises a tail part, a straight jacking pin rod and a head part; the straight jacking pin penetrates through the male die core, and correspondingly, an accommodating space of the straight jacking pin is arranged in the male die core, and two inclined planes are arranged in the accommodating space and respectively withhold the inclined planes A and B of the straight jacking pin rod, so that when the straight jacking pin longitudinally moves, the straight jacking pin transversely moves to realize the effect of backing out and returning of the straight jacking pin;
The pin penetrates through the tail part of the straight jacking pin, two ends of the pin extend out of the tail part of the straight jacking pin, the extending parts are inserted into the pin grooves, the pin plays a role of connecting the straight jacking pin with the straight jacking seat, when the straight jacking pin transversely moves, the pin slides by taking the pin grooves as sliding rails, and the resistance of the straight jacking pin in the transverse movement process is small, so that the straight jacking pin can smoothly move;
Further, the accommodating groove is cross-shaped and can accommodate the tail parts of the four straight jacking pins.
Further, the pin slot is in the shape of a key slot.
Further, the clearance between the tail part of the straight jacking pin and the containing groove is 0.1mm.
Furthermore, an insert can be made around the accommodating space of the straight ejector pin in the male die core, so that the processing is more convenient. Compared with the prior art, the sliding rail type straight ejection structure has the advantages that after the die is opened, the ejector plate longitudinally moves along the die opening direction to drive the straight ejection seat and the straight ejection pin to longitudinally move, the front inclined plane of the straight ejection pin rod is resisted by the male die core, so that the straight ejection pin can transversely move at the same time to withdraw from a product barb, when the straight ejection pin transversely moves, the pin slides by taking the pin groove as the sliding rail, and because a gap is arranged between the tail part of the straight ejection pin and the accommodating groove, the pin is connected with the straight ejection pin and the straight ejection seat by adopting the pin, the resistance of the straight ejection pin in the transverse movement process is small, so that the straight ejection pin can smoothly move.
[ Description of the drawings ]
FIG. 1 shows a schematic diagram of a product.
Fig. 2 shows a cross-sectional view of a product.
Fig. 3 is a schematic combination diagram of a sliding rail type straight top structure according to the present invention.
Fig. 4 is an exploded view of a sliding rail type straight top structure according to the present invention.
Fig. 5 is a sectional view showing a combination of slide rail type straight top structures according to the present invention.
Fig. 6 is a schematic diagram of a slide rail type straight top structure in a mold according to the present invention.
[ Detailed description ] of the invention
For a further understanding of the objects, technical effects and technical means of the present invention, reference will now be made in detail to the accompanying drawings.
Referring to fig. 3, 4 and 5, fig. 3 is a schematic combination diagram of a sliding rail type straight top structure of the present invention, fig. 4 is an exploded schematic diagram of a sliding rail type straight top structure of the present invention, fig. 5 is a partial sectional view of a sliding rail type straight top structure of the present invention, in this embodiment, a sliding rail type straight top structure 11 of the present invention is applied in a mold, the mold includes a cavity formed by a male mold plate 30, a female mold plate 40, an ejector plate 50, a male mold core 31, a female mold core 41, a male mold core 31 and a female mold core 41, a product 10 is molded in the cavity, 4 barbs 20 are provided on the product 10, and the sliding rail type straight top structure 11 includes:
a straight top seat 100 fixed in the ejector plate 50 of the mold, wherein the straight top seat 100 is provided with a containing groove 101 and a pin groove 102;
The straight jacking pin 200 comprises a tail 210, a straight jacking pin rod 220 and a head 230, wherein the tail 210 is arranged in a containing groove 101 of the straight jacking seat 100, a gap is formed between the tail and the containing groove 101, one side of the straight jacking pin rod 220, which is close to a barb 20 of a product 10, protrudes out to form an A step 221, an inclined surface forming an A inclined surface 222 is arranged at the A step 221, another side also protrudes out to form a B step 223, an inclined surface forming a B inclined surface 224 is arranged at the B step 223, the straight jacking pin rod 220 penetrates through an insert 32 of a male die core 31, a containing space 33 of the straight jacking pin 200 is correspondingly arranged in the insert 32, two inclined surfaces are respectively blocked by the A inclined surface 222 and the B inclined surface 224 of the straight jacking pin rod 220, and simultaneously do transverse movement when the straight jacking pin rod 200 moves longitudinally, so that the barb 20 of the product 10 is retreated;
The pin 300 penetrates through the tail 210 of the straight top pin 200, two ends of the pin extend out of the tail 210 of the straight top pin 200, the extending parts are inserted into the pin grooves 102, the pin 300 plays a role of connecting the straight top pin 200 and the straight top seat 100, when the straight top pin 200 moves transversely, the pin 300 slides by taking the pin grooves 102 as sliding rails, and the resistance of the straight top pin 200 in the transverse movement process is small, so that the straight top pin 200 moves smoothly;
wherein, the receiving groove 101 is cross-shaped, and can receive the tail portions 210 of the four straight pins 200.
Wherein, the clearance between the tail 210 of the straight knock pin 200 and the receiving groove 101 is 0.1mm, which makes the resistance of the straight knock pin 200 when it is withdrawn small.
The straight jacking pin 220 penetrates through the male template 30, and accordingly an accommodating space is provided in the male template 30 for the straight jacking pin 200 to penetrate through.
In this embodiment, an insert 32 is formed around the receiving space 33 of the straight pin 200 in the male mold core 31, which is more convenient to process.
In this embodiment, the number of the barbs 20 of the product 10 is 4, the 4 barbs are all in different directions, the product 10 is smaller, and the space in the middle is limited, and the 4 straight ejector pins 200 are arranged in the accommodating groove 101 of the straight ejector seat 100 together and are connected by the pins 300, so that after the 4 barbs 20 in the middle of the product 10 are formed, the product 10 is ejected from the barbs 20 at the same time, and the product 10 is ejected smoothly.
Referring to fig. 6, a schematic diagram of a slide rail type straight top structure in a mold according to the present invention is shown. After the mold is closed, the head 230 of the straight ejector pin 200 is matched with the barb 20 of the molded product 10, after the mold is opened, the male mold plate 30 is separated from the female mold plate 40, the ejector plate 50 moves longitudinally to drive the straight ejector seat 100 and the straight ejector pin 200 to move longitudinally, the straight ejector pin 200 moves transversely simultaneously because the inclined surface A222 of the straight ejector pin rod 220 abuts against one inclined surface of the insert 32 of the male mold core 31, the barb 20 of the product 10 is withdrawn, the pin 300 slides by taking the pin groove 102 as a slide rail because the pin 300 is connected with the straight ejector pin 200 and the straight ejector seat 100, and because a gap is arranged between the tail 210 of the straight ejector pin 200 and the accommodating groove 101, the resistance of the straight ejector pin 200 in the transverse movement process is small, so that the straight ejector pin 200 moves smoothly, the straight ejector pin 200 continues to move longitudinally to eject the product 10 after withdrawing the product 10, the ejector plate 50 moves longitudinally to return to drive the straight ejector seat 100 and the straight ejector pin 200 to move longitudinally because the inclined surface B224 of the straight ejector pin rod 220 abuts against one inclined surface of the insert 31, and the straight ejector pin core 100 is also retracted transversely to carry the straight ejector pin 200.
In summary, according to the slide rail type straight top structure 11 of the present invention, after the mold is opened, the ejector plate 50 moves longitudinally along the mold opening direction to drive the straight top seat 100 and the straight top pin 200 to move longitudinally, the straight top pin 200 moves laterally to withdraw from the product 10 and the hook 20, the pin 300 is used to connect the straight top pin 200 and the straight top seat 100, and when the straight top pin 200 moves laterally, the pin 300 slides with the pin slot 102 as a slide rail, and because a gap is provided between the tail 210 of the straight top pin 200 and the accommodating slot 101, the resistance of the straight top pin 200 during the lateral movement is small, so that the straight top pin 200 moves smoothly.
The technical principles of the present invention have been described above in connection with specific embodiments, which are provided for the purpose of explaining the principles of the present invention and are not to be construed as limiting the scope of the present invention in any way. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (4)
1. The utility model provides a straight top structure of slide rail formula, is applied to in the mould, the mould includes public template, female template, liftout plate, public mould benevolence, female mould benevolence, its characterized in that includes:
The straight ejection seat is fixed in the ejection plate of the die, is provided with a containing groove and is provided with a pin groove;
The straight jacking pin comprises a tail part, a straight jacking pin rod and a head part; the straight jacking pin penetrates through the male die core, and correspondingly, an accommodating space of the straight jacking pin is arranged in the male die core, and two inclined planes are arranged in the accommodating space and respectively withhold the inclined planes A and B of the straight jacking pin rod, so that when the straight jacking pin longitudinally moves, the straight jacking pin rod transversely moves at the same time, the effect of backing off and returning of the straight jacking pin out of a product is realized, the inclined planes A are used for realizing backing off of the straight jacking pin out of the product, and the inclined planes B are used for realizing returning of the straight jacking pin;
The pin penetrates through the tail part of the straight jacking pin, two ends of the pin extend out of the tail part of the straight jacking pin, the extending parts are inserted into the pin grooves, the pin plays a role of connecting the straight jacking pin with the straight jacking seat, when the straight jacking pin transversely moves, the pin slides by taking the pin grooves as sliding rails, and the resistance of the straight jacking pin in the transverse movement process is small, so that the straight jacking pin can smoothly move;
an insert can be formed around the accommodation space of the straight ejector pin in the male mold core, the A inclined plane of the straight ejector pin rod abuts against an inclined plane of the insert of the male mold core, and the straight ejector pin can move transversely at the same time.
2. The sliding rail type straight top structure according to claim 1, wherein the accommodating groove is cross-shaped and can accommodate four straight top pin tail parts.
3. The sliding rail type straight top structure according to claim 1, wherein the pin groove is in a key groove shape.
4. The slide rail type straight top structure according to claim 1, wherein a gap between the tail of the straight top pin and the accommodating groove is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317111.1A CN116100750B (en) | 2021-11-09 | 2021-11-09 | Slide rail type straight top structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317111.1A CN116100750B (en) | 2021-11-09 | 2021-11-09 | Slide rail type straight top structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116100750A CN116100750A (en) | 2023-05-12 |
| CN116100750B true CN116100750B (en) | 2025-12-09 |
Family
ID=86264234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111317111.1A Active CN116100750B (en) | 2021-11-09 | 2021-11-09 | Slide rail type straight top structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116100750B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206855933U (en) * | 2017-05-10 | 2018-01-09 | 苏州艾特斯环保材料有限公司 | A kind of demoulding device of environment-friendly type injection mold |
| CN109822823A (en) * | 2019-02-21 | 2019-05-31 | 宇龙计算机通信科技(深圳)有限公司 | Mold |
| CN210390000U (en) * | 2019-08-02 | 2020-04-24 | 常州华驰模具科技有限公司 | Straight-top reverse-buckling-releasing structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3500763B2 (en) * | 1995-04-12 | 2004-02-23 | 双葉電子工業株式会社 | Mold pin, mold pin breakage detection sheet and mold |
| CN2626709Y (en) * | 2003-06-20 | 2004-07-21 | 顺德市顺达电脑厂有限公司 | Vertically jacking mechanism |
-
2021
- 2021-11-09 CN CN202111317111.1A patent/CN116100750B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206855933U (en) * | 2017-05-10 | 2018-01-09 | 苏州艾特斯环保材料有限公司 | A kind of demoulding device of environment-friendly type injection mold |
| CN109822823A (en) * | 2019-02-21 | 2019-05-31 | 宇龙计算机通信科技(深圳)有限公司 | Mold |
| CN210390000U (en) * | 2019-08-02 | 2020-04-24 | 常州华驰模具科技有限公司 | Straight-top reverse-buckling-releasing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116100750A (en) | 2023-05-12 |
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