CN112372940A - Insert pin and insert die - Google Patents
Insert pin and insert die Download PDFInfo
- Publication number
- CN112372940A CN112372940A CN202011034654.8A CN202011034654A CN112372940A CN 112372940 A CN112372940 A CN 112372940A CN 202011034654 A CN202011034654 A CN 202011034654A CN 112372940 A CN112372940 A CN 112372940A
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- CN
- China
- Prior art keywords
- insert
- pin
- needle
- thick bamboo
- department section
- 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.)
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Classifications
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- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- 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
- B29C45/2602—Mould construction elements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an insert pin and an insert mold, the insert pin comprises: the outer fixed department section of thick bamboo, interior location needle, telescopic needle and the flexible needle department section of thick bamboo that cup joint in proper order along the axial, an outer fixed department section of thick bamboo and interior location needle one end contact with a fixed plate and connect, cup joint in an outer fixed department section of thick bamboo interior location needle slidable, flexible needle cup joints in a flexible needle department section of thick bamboo, and one end extends into an outer fixed department section of thick bamboo, and the other end then stretches out in a flexible needle department section of thick bamboo, the telescopic needle is provided with the elastic component in an outer fixed department section of thick bamboo and between the interior location needle, the one end that an outer fixed department section of thick bamboo was kept away from to a flexible needle department section. According to the insert pin and the insert die, the elastic piece is arranged, so that the telescopic pin is popped up under the action of elastic force when the die is opened, and an insert at a narrow position space can be accurately placed on the telescopic pin; and the insert is firmly attracted by the magnetic part, so that the insert is prevented from falling off in the movement process, and the magnetic part is simple in structure and convenient to use.
Description
Technical Field
The invention relates to the field of insert injection molds, in particular to an insert pin and an insert mold.
Background
The metal insert injection molding comprises the steps of firstly fixing the metal insert at a proper position in a mold in advance, then injecting plastic for molding, tightly wrapping the insert by the cooled and solidified plastic after mold opening and embedding the insert in a product to obtain the product with the inserts such as a threaded ring, an electrode and the like. The method is often used for manufacturing automobile parts, such as tail door inner plates, spoilers and the like.
When the insert injection molding is carried out on an insert structure such as a nut arranged on an inner plate of a tail door of an automobile, an insert pin is fixed on a mold, and a mechanical gripper needs to accurately place the insert on the insert pin so as to fix the insert, and then plastic is injected for molding. However, the shapes and structures of the tail doors are different, the positions of some insert structures are narrow, and the existing insert pins are only straight rods without any other structures, as shown in fig. 5, so that the insert cannot be accurately placed on the insert pin at the narrow position of the space, the insert and the insert pin are not firmly fixed, and the risk that the insert falls to crush the mold and the molded product lacks the insert to cause product rejection exists.
Disclosure of Invention
The invention provides an insert pin and an insert die, which can accurately fix an insert when the space of the insert position is narrow and can prevent the insert from falling off in the movement process.
One aspect of the present invention provides an insert pin, including:
an outer fixed department section of thick bamboo, interior location needle, telescopic needle and a flexible needle department section of thick bamboo that cup joints in proper order along the axial, an outer fixed department section of thick bamboo is fixed in on a fixed plate with interior location needle one end, cup joint in an outer fixed department section of thick bamboo interior location needle slidable, telescopic needle cup joints in a flexible needle department section of thick bamboo, and one end extends into an outer fixed department section of thick bamboo, and the other end then stretches out in a flexible needle department section of thick bamboo, telescopic needle department section of thick bamboo and interior location needle between in an outer fixed department section of thick bamboo are provided with the elastic component, the one end that an outer fixed department section of thick bamboo was kept away from to a.
Furthermore, the telescopic needle is provided with a first positioning step, the telescopic needle ejector sleeve is provided with a second positioning step matched with the first positioning step, the first positioning step is positioned in the inner cavity of the outer fixing ejector sleeve and positioned between the second positioning step and the inner positioning needle, and the elastic piece is positioned between the first positioning step and the inner positioning needle.
Furthermore, when one end of the telescopic needle is in contact with the inner positioning needle, the distance between the first positioning step and the second positioning step is 5-12 mm.
Further, when one end of the telescopic needle is in contact with the inner positioning needle, the distance between the first positioning step and the second positioning step is 10 mm.
Furthermore, one end of the telescopic needle extending out of the telescopic needle ejector sleeve is provided with a chamfering table, and the chamfering table is provided with an oblique angle inclining towards the direction of the central axis of the telescopic needle.
Further, the elastic member is a spring or a rubber sleeve.
Further, the magnetic part is a neodymium boron magnet, a ferrite magnet, a samarium cobalt magnet or an alnico magnet.
The invention provides an insert mould, which comprises a fixed mould, a movable mould matched with the fixed mould and the insert pin, wherein the insert pin is fixed in the fixed mould through a fixed plate, an injection molding cavity is formed between the fixed mould and the movable mould, an insert is arranged in the injection molding cavity, and the insert is fixed on a telescopic needle of the insert pin.
Further, the fixed plate is connected with the fixed die through a bolt.
Further, the insert is a nut.
According to the insert pin and the insert die, the elastic piece is arranged, so that the telescopic pin is popped up under the action of elastic force in a die opening state, and an insert at a narrow position space can be accurately placed on the telescopic pin; and the insert is firmly attracted by the magnetic part, so that the insert is prevented from falling off in the movement process, and the magnetic part is simple in structure and convenient to use.
Drawings
Fig. 1 is a schematic structural view of an insert according to an embodiment of the present invention;
FIG. 2 is an exploded view of an insert provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a connection relationship between an insert pin and an insert according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an insert mold according to another embodiment of the present invention;
fig. 5 is a schematic structural view of a conventional insert pin.
1-inserting a pin;
11-a fixed plate;
111-bolt;
12-external fixation of the ejector sleeve;
13-a telescopic needle driver cylinder;
131-a second positioning step;
14-positioning the needle inside;
15-a telescopic needle;
151-first positioning step;
152-chamfering station;
16-an elastic member;
17-a magnetic member;
2-an insert;
3-fixing the mold;
4-moving the mold;
41-inserting a pin into a movable mould;
5-injection molding cavity.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It should be noted that the directions of "left", "right", etc. in the present invention are for the directions in fig. 1 to 4, and are only for convenience of description, not for limitation of the embodiment of the present invention.
Example one
As shown in fig. 1 and 2, an embodiment of the present invention provides an insert 1, which includes a fixing plate 11, an outer fixing barrel 12 and a telescopic needle barrel 13, which are sequentially arranged along an axial direction, wherein the outer fixing barrel 12 and the telescopic needle barrel 13 are connected to each other and have inner cavities communicated with each other, an inner positioning needle 14 is arranged in the inner cavity of the outer fixing barrel 12, and left ends of the outer fixing barrel 12 and the inner positioning needle 14 are in contact with the fixing plate 11, that is, the fixing plate 11 is in close contact with the outer fixing barrel 12 and the inner positioning needle 14 and supports them against them to prevent falling off, a slidable telescopic needle 15 is arranged in the inner cavities of the outer fixing barrel 12 and the telescopic needle barrel 13, a left end of the telescopic needle 15 is located in the inner cavity of the outer fixing barrel 12, an elastic member 16 is arranged between the fixed needle and a right end of the inner positioning needle 14, and the elastic member 16 is in a compressed state; the right end of the telescopic needle 15 extends out of the inner cavity of the telescopic needle holder 13 and extends outwards, and the right end of the telescopic needle holder 13 is provided with a magnetic part 17. In use, the insert pin 1 is installed in a hole formed in a mold (not shown), and the fixing plate 11 is positioned at one side of the hole and is fastened to the mold by a bolt 111 to abut against the left ends of the outer fixing barrel 12 and the inner fixing pin 14, thereby preventing the outer fixing barrel 12 and the inner fixing pin 14 from falling out of the mold hole.
The right end of the telescopic needle department cylinder 13 is provided with a containing groove matched with the magnetic part 17, the magnetic part 17 is positioned in the containing groove and is tightly matched with the containing groove, and on the other hand, the magnetic part 17 adsorbs the telescopic needle department cylinder 13 simultaneously, so that the magnetic part 17 is fixedly connected with the telescopic needle department cylinder 13.
As shown in figure 3, the insert 2 is connected with the right end of the retractable needle 15, when in use, the retractable needle 15 is inserted into the opening of the insert 2 to be positioned, and the magnetic member 17 is used for attracting the insert 2 and preventing the insert from falling off. When the mold is opened, the telescopic needle 15 can be popped out under the action of the elastic piece 16, at the moment, the insert 2 is placed on the telescopic needle through the gripper, the magnetic piece 17 tightly absorbs the insert 2, when the mold is closed, the movable mold can press the telescopic needle 15 to enable the telescopic needle to slide rightwards in the inner cavities of the external fixed ejector sleeve 12 and the telescopic needle ejector sleeve 13 and start to perform injection molding, after the injection molding is completed, the movable mold leaves, the telescopic needle 15 is popped out under the elastic action of the elastic piece 16, so that the injection molded product is popped out, and the part taking is convenient.
According to a preferred embodiment of the present invention, the retractable needle 15 has a first positioning step 151, the retractable needle holder 13 has a second positioning step 131 matching with the first positioning step 151, the first positioning step 151 is slidably disposed in the inner cavity of the external fixed holder 12, and the elastic member 16 is sleeved on the retractable needle 15 and located between the first positioning step 151 and the internal positioning needle 14; the diameter of the first positioning step 151 is greater than the diameter of the inner cavity of the telescopic needle holder, but less than the diameter of the second positioning step 131, and the outer fixed holder 12, the telescopic needle holder 15 and the inner positioning needle 14 are fixed, therefore, the first positioning step 151 can only slide between the second positioning step 131 and the inner positioning needle 14, and can move from the left end to the position where the left end of the telescopic needle 15 contacts the inner positioning needle 15, and from the right end to the position where the first positioning step 151 contacts the second positioning step 131, and the distance between the two is the maximum distance that the first positioning step 151 can move, and is also the maximum distance that the telescopic needle 15 can move. When the insert pin 1 is in an original state, the elastic piece 16 is in a compressed state, the first positioning step 151 is abutted to the second positioning step 131, in the injection molding process, the telescopic pin 15 slides leftwards under the action of the movable mold until the left end of the telescopic pin 15 is contacted with the inner positioning pin 14, after the injection molding is completed, the movable mold leaves, and the telescopic pin 15 returns to the original state under the action of the elastic piece 16, so that an injection molded product is ejected.
Referring to fig. 1 again, d is a distance between the first positioning step 151 and the second positioning step 131 when the left end of the retractable needle 15 contacts the right end of the inner positioning needle 14, the maximum distance of movement of the retractable needle 15 can be controlled by adjusting the size of d, which can be 5-12mm, preferably, d is 10 mm.
With continued reference to fig. 1, the right end of the retractable needle 15 has a chamfer 152, and the chamfer 152 has an angle of inclination of between 15 ° and 35 °, preferably 30 °, towards the central axis of the retractable needle 15, and the chamfer 152 is arranged to guide the retractable needle 15 to be inserted into the opening of the insert 2 more easily.
The elastic member 16 may be a spring or a rubber sleeve or other elastic elements, which is not limited in the embodiment of the present invention.
The magnetic member 17 may be a neodymium boron magnet, a ferrite magnet, a samarium cobalt magnet, or an alnico magnet, which is not limited in the embodiment of the present invention.
According to the insert pin 1 provided by the embodiment of the invention, the elastic piece 16 is arranged, and the telescopic pin 15 is popped up under the action of elastic force in a die opening state, so that an insert at a narrow position space can be accurately placed on the telescopic pin 15; and the magnetic part 17 firmly attracts the embedded part to prevent the embedded part from falling off in the movement process, and the structure is simple and the use is convenient.
Example two
As shown in fig. 4, the present embodiment provides an insert mold, which includes a fixed mold 3, a movable mold 4 and an insert pin 1 as described in the first embodiment, the insert pin 1 is fixed in the fixed mold 3 through a fixing plate 11, the fixed mold 3 and the movable mold 4 are mutually matched, and an injection molding cavity 5 is formed therebetween, an insert 2 is arranged in the injection molding cavity 5, and the insert 2 is fixed on a telescopic pin 15 of the insert pin 1.
Specifically, the insert 2 is provided with an opening, and the outer diameter of the retractable needle 15 is slightly smaller than the inner diameter of the opening, so that the retractable needle 15 can be conveniently inserted into the opening, and the insert 2 can be fixed on the retractable needle 15. The insert 2 is a metal piece, and after the retractable needle 15 is inserted into the opening of the insert 2, the magnetic piece 17 of the insert needle 1 further attracts the insert 2 to prevent the insert 2 from falling off in the moving process of the retractable needle 15.
In one possible embodiment, the insert 2 is a nut.
The movable die 4 is internally provided with a movable die insert pin 41, the movable die insert pin 41 is positioned at one end of the insert 2, which is far away from the telescopic pin 15, when the die is closed, the movable die insert pin 41 and the telescopic pin 15 are pressed and collided, when the movable die insert pin 41 is pressed on the telescopic pin 15, the telescopic pin 15 moves leftwards, and when the movable die 4 leaves, the telescopic pin 15 is restored to the original state under the action of the elastic piece 16, so that the injection molded product is popped up.
Specifically, the fixing plate 11 can be fixedly connected with the fixed die 3 through bolts, so that the insert pin 1 is more convenient to assemble and disassemble.
The working principle of the insert mold in the embodiment is as follows: the fixed die 3 and the movable die 4 are matched with each other, an injection molding cavity 5 is formed between the fixed die 3 and the movable die 4, in a die opening state, the telescopic needle 15 pops out for a distance d under the elastic action of the elastic piece 16, the insert 2 is placed at the right end of the telescopic needle 15 by a gripper, the telescopic needle 15 is inserted into an opening of the insert 2, the insert 2 is tightly sucked by the magnetic piece 17, during die closing, the movable die insert needle 41 presses the telescopic needle 15 to enable the telescopic needle 15 to move leftwards, injection molding is started at the moment, after the injection molding is completed, the die opening is carried out, the movable die 4 leaves, and the telescopic needle 15 ejects an injection molded product under the elastic.
According to the insert die provided by the embodiment, by adopting the insert pin 1 provided by the embodiment, when the die is opened, the telescopic pin 15 is ejected out under the action of elastic force, so that an insert at a narrow position space can be accurately placed on the telescopic pin 15; the insert is firmly attracted by the magnetic part 17, so that the insert is prevented from falling off in the movement process; after the injection molding is finished, the telescopic needle 15 is popped out under the action of elasticity, and automatic demolding can be realized.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.
Claims (10)
1. An insert comprising:
the outer fixed department section of thick bamboo, interior location needle, telescopic needle and the flexible needle department section of thick bamboo that cup joint in proper order along the axial, an outer fixed department section of thick bamboo and interior location needle one end contact with a fixed plate and connect, cup joint in an outer fixed department section of thick bamboo interior location needle slidable, flexible needle cup joints in a flexible needle department section of thick bamboo, and one end extends into an outer fixed department section of thick bamboo, and the other end then stretches out in a flexible needle department section of thick bamboo, the telescopic needle is provided with the elastic component in an outer fixed department section of thick bamboo and between the interior location needle, the one end that an outer fixed department section of thick bamboo was kept away from to a flexible needle department section.
2. The insert of claim 1, wherein the telescopic pin has a first positioning step, the telescopic pin holder has a second positioning step matching the first positioning step, the first positioning step is located in the inner cavity of the outer fixed holder and between the second positioning step and the inner positioning pin, and the elastic member is located between the first positioning step and the inner positioning pin.
3. The insert pin of claim 2, wherein the first positioning step and the second positioning step are spaced apart by 5-12mm when the one end of the telescopic pin is in contact with the inner positioning pin.
4. The insert pin of claim 3, wherein the first positioning step and the second positioning step are spaced apart by 10mm when the one end of the telescopic pin is in contact with the inner positioning pin.
5. The insert of claim 1, wherein the end of the pogo pin extending out of the pogo pin barrel has a chamfer portion having a bevel inclined in a direction of a central axis of the pogo pin.
6. The insert of claim 1 or 2, wherein the elastic member is a spring or a rubber sleeve.
7. The insert of claim 1, wherein the magnetic member is a neodymium boron magnet, a ferrite magnet, a samarium cobalt magnet, or an alnico magnet.
8. An insert die, comprising a fixed die, a movable die matched with the fixed die and an insert pin according to any one of claims 1 to 7, wherein the insert pin is fixed in the fixed die through a fixed plate, an injection molding cavity is formed between the fixed die and the movable die, an insert is arranged in the injection molding cavity, and the insert is fixed on a telescopic pin of the insert pin.
9. The insert mold of claim 8, wherein the fixed plate is bolted to the stationary mold.
10. The insert mold of claim 8, wherein the insert is a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011034654.8A CN112372940A (en) | 2020-09-27 | 2020-09-27 | Insert pin and insert die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011034654.8A CN112372940A (en) | 2020-09-27 | 2020-09-27 | Insert pin and insert die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112372940A true CN112372940A (en) | 2021-02-19 |
Family
ID=74579953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011034654.8A Pending CN112372940A (en) | 2020-09-27 | 2020-09-27 | Insert pin and insert die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112372940A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510904A (en) * | 2021-03-30 | 2021-10-19 | 宁波方正汽车模具股份有限公司 | Insert core-pulling mold |
| CN114043670A (en) * | 2021-11-11 | 2022-02-15 | 青岛海泰科模具有限公司 | Fixing mechanism for metal insert in integrated airbag frame instrument panel |
| CN114654663A (en) * | 2022-04-20 | 2022-06-24 | 天津银宝山新科技有限公司 | A integrated into one piece structure for taking metal insert in injection mold |
-
2020
- 2020-09-27 CN CN202011034654.8A patent/CN112372940A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510904A (en) * | 2021-03-30 | 2021-10-19 | 宁波方正汽车模具股份有限公司 | Insert core-pulling mold |
| CN113510904B (en) * | 2021-03-30 | 2022-11-29 | 宁波方正汽车模具股份有限公司 | Insert core-pulling mold |
| CN114043670A (en) * | 2021-11-11 | 2022-02-15 | 青岛海泰科模具有限公司 | Fixing mechanism for metal insert in integrated airbag frame instrument panel |
| CN114043670B (en) * | 2021-11-11 | 2024-04-23 | 青岛海泰科模具有限公司 | Fixing mechanism for metal inserts in integrated air bag frame instrument board |
| CN114654663A (en) * | 2022-04-20 | 2022-06-24 | 天津银宝山新科技有限公司 | A integrated into one piece structure for taking metal insert in injection mold |
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