CN116080005A - Mold capable of positioning inserts - Google Patents
Mold capable of positioning inserts Download PDFInfo
- Publication number
- CN116080005A CN116080005A CN202310148750.2A CN202310148750A CN116080005A CN 116080005 A CN116080005 A CN 116080005A CN 202310148750 A CN202310148750 A CN 202310148750A CN 116080005 A CN116080005 A CN 116080005A
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- CN
- China
- Prior art keywords
- negative pressure
- insert
- mold
- lever
- air inlet
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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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
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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
- B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a die capable of positioning an insert, which is characterized by comprising a fixed die, a negative pressure box, a negative pressure insert pin, a driving mechanism and a movable die, wherein a negative pressure channel is formed in the negative pressure box along a first direction, the negative pressure channel comprises an air inlet and an air outlet, the negative pressure insert pin penetrates into the negative pressure channel along the first direction through the air outlet, the driving mechanism comprises a lever and a reset insert pin, the lever is rotationally connected to the fixed die, the first end of the lever is abutted against the reset insert pin, the second end of the lever is abutted against the negative pressure insert pin, and when the movable die moves towards the fixed die, the movable die can drive the reset insert pin to drive the lever to rotate and enable the negative pressure insert pin to seal the air inlet; when the die is assembled, the reset insert connected with the movable die drives the negative pressure insert to squeeze the spring and block the air inlet, so that the effect of absorbing the insert and simultaneously automatically blocking the air inlet is realized, and the negative pressure channel is prevented from being blocked by the injection molding material.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a die capable of positioning an insert.
Background
Insert molding is a method of fixing an insert in place in a mold in advance, then injecting plastic for molding, and after opening the mold, the insert is tightly embedded in the product by cooled and solidified plastic to obtain the product with the insert such as a nut, a threaded ring, an electrode, etc.
One common fixing mode of the insert is to set a negative pressure device and a negative pressure channel communicated with the negative pressure device to adsorb and fix the insert, especially when the fixed insert is a nonmagnetic insert (such as 304 stainless steel), the mode is very effective, however, injection molding material may be caused to enter the negative pressure channel in the injection molding process, so that the negative pressure channel is blocked, and adsorption of the insert by the negative pressure device is affected.
Disclosure of Invention
The purpose of the invention is that: the mold capable of positioning the inserts solves the problem that an adsorption channel in the existing mold capable of positioning the inserts is easy to be blocked by injection molding materials.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a mold capable of positioning inserts, comprising
A fixed mold; an air outlet channel communicated with the outside is formed in the fixed die;
the negative pressure box is internally provided with a negative pressure channel along a first direction, the negative pressure channel comprises an air inlet and an air outlet, the air inlet is used for adsorbing the insert, the air outlet is used for being communicated with a negative pressure machine, and the air outlet is communicated with the air outlet channel;
the negative pressure insert pin penetrates into the negative pressure channel along a first direction through the air outlet, a spring is sleeved on the negative pressure insert pin, an abutting block is arranged on the negative pressure insert pin, a fixed ring plate for the negative pressure insert pin to penetrate is fixed on the fixed die, the abutting block abuts against a first end of the spring along the first direction, and a second end of the spring abuts against the fixed ring plate;
the driving mechanism comprises a lever and a reset insert pin, the lever is rotationally connected to the fixed die, a first end of the lever is abutted against the reset insert pin, and a second end of the lever is abutted against the negative pressure insert pin and used for pushing the negative pressure insert pin to move along a first direction;
and when the movable die moves towards the fixed die, the movable die can drive the reset insert pin to drive the lever to rotate, and the negative pressure insert pin is enabled to seal the air inlet.
Further, a positioning groove for embedding the insert is formed in the plane, provided with the air inlet, of the negative pressure box, and the positioning groove is communicated with the air inlet.
Further, a fixing rod is connected to one side surface of the air inlet formed in the negative pressure box, the fixing rod extends along the first direction to be sleeved with the insert, and the positioning groove surrounds the fixing rod.
Further, the inner wall of the negative pressure box forming the air inlet is made of elastic materials.
Further, a mounting block is arranged on the fixed die, the lever is rotatably connected to the mounting block, and the mounting block is used for abutting against the negative pressure insert pin to limit the upward movement stroke of the negative pressure insert pin.
Further, the negative pressure channel comprises a first channel and a second channel which are sequentially arranged and communicated along a first direction, the first channel is communicated with the air outlet, the second channel is communicated with the air inlet, the section width of the first channel is larger than that of the second channel along the first direction, and the negative pressure insert pin is used for blocking the second channel.
Further, the length of the second channel ranges from 2mm to 5mm.
Further, a side surface of the air outlet is provided with a first sealing rubber ring surrounding the air outlet, and the negative pressure box is in sealing connection with the fixed die through the sealing rubber ring.
Further, the fixed ring plate is in sealing connection with the negative pressure insert pin through a second sealing rubber ring.
Further, one end of the reset insert, which is far away from the lever, is fixedly connected with the movable die.
Compared with the prior art, the mold capable of positioning the inserts has the beneficial effects that: when the die is assembled, the reset insert connected with the movable die drives the negative pressure insert to squeeze the spring and block the air inlet, so that the effect of absorbing the insert and simultaneously automatically blocking the air inlet is realized, and the negative pressure channel is prevented from being blocked by the injection molding material.
Drawings
FIG. 1 is a schematic view of the structure of a negative pressure box, a negative pressure insert pin and a reset insert pin in a mold capable of positioning an insert according to the present invention;
FIG. 2 is a front cross-sectional view of a negative pressure case, negative pressure insert and return insert of a positionable insert mold of the present invention;
FIG. 3 is a side cross-sectional view of a negative pressure case, negative pressure insert and return insert of a positionable insert mold of the present invention;
FIG. 4 is a schematic view showing the internal structure of a negative pressure box in a mold capable of positioning an insert according to the present invention;
FIG. 5 is a front cross-sectional view of a mold with a positionable insert according to the present invention;
FIG. 6 is a top cross-sectional view of a mold of the positionable insert of the present invention;
in the figure, 1, a fixed mold; 11. a fixed ring plate; 2. a negative pressure box; 21. an air outlet; 22. a negative pressure channel; 221. a first channel; 222. a second channel; 23. an air inlet; 24. a fixed rod; 25. a positioning groove; 3. a negative pressure insert pin; 31. an abutment block; 32. a spring; 4. a driving mechanism; 41. a lever; 42. resetting the inlaid needle; 5. a first sealing rubber ring; 6. the second sealing rubber ring; 7. an air extraction channel; 8. a mounting block; 9. and (5) a movable mould.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, a mold capable of positioning an insert according to a preferred embodiment of the present invention includes a fixed mold 1, a negative pressure box 2, a negative pressure insert pin 3, a driving mechanism 4, and a movable mold 9; an air suction channel 7 communicated with the outside is arranged in the fixed die 1; a negative pressure channel 22 is arranged in the negative pressure box 2 along the first direction, the negative pressure channel 22 comprises an air inlet 23 and an air outlet 21, the air inlet 23 is used for adsorbing the insert, the air outlet 21 is used for being communicated with a negative pressure machine, and the air outlet 21 is communicated with the air outlet channel; the negative pressure insert needle 3 penetrates into the negative pressure channel 22 along the first direction through the air outlet 21, a spring 32 is sleeved on the negative pressure insert needle 3, an abutting block 31 is arranged on the negative pressure insert needle 3, a fixed ring plate 11 for the negative pressure insert needle 3 to penetrate is fixed on the fixed mold 1, the abutting block 31 abuts against the first end of the spring 32 along the first direction, and the second end of the spring 32 abuts against the fixed ring plate 11; the driving mechanism 4 comprises a lever 41 and a reset insert pin 42, the lever 41 is rotatably connected to the fixed die 1, a first end of the lever 41 is abutted against the reset insert pin 42, and a second end of the lever 41 is abutted against the negative pressure insert pin 3 and used for pushing the negative pressure insert pin 3 to move along a first direction; when the movable die 9 moves towards the fixed die 1, the movable die 9 can drive the reset insert pin 42 to drive the lever 41 to rotate, and the negative pressure insert pin 3 can seal the air inlet 23.
Based on this, when the mould is closed, the reset insert pin 42 connected with the movable mould 9 drives the negative pressure insert pin 3 to squeeze the spring 32 and block the air inlet 23, so that the effect of absorbing the insert and simultaneously automatically blocking the air inlet 23 is realized, and the negative pressure channel 22 is prevented from being blocked by injection molding materials.
Further, as shown in fig. 4, when the insert is attached to the negative pressure box 2 under the action of negative pressure, in order to prevent the insert from sliding on the attaching surface to cause the air inlet to be communicated with the outside, a plane on which the air inlet 23 is formed on the negative pressure box 2 is provided with a positioning groove 25 for embedding the insert, the shape of the positioning groove 25 is matched with the insert, and the positioning groove 25 is communicated with the air inlet 23.
Further, as shown in fig. 4, in order to prevent the insert from sliding, a side surface of the negative pressure box 2, on which the air inlet 23 is formed, is connected with a fixing rod 24, the fixing rod 24 extends along the first direction for sleeving the insert, and a positioning groove 25 is arranged around the fixing rod 24, and according to different shapes of the insert, the fixing rod 24 can be replaced with a shape of a positioning block or the like matched with the fixed insert.
Further, the inner wall of the negative pressure box 2 forming the air inlet 23 is made of elastic materials, and when the negative pressure insert needle 3 seals the air inlet 23, the inner wall of the air inlet 23 is in interference fit with the negative pressure insert needle 3, so that the effect that the negative pressure insert needle 3 completely seals the air inlet 23 is achieved.
Further, as shown in fig. 2, the fixed mold 1 is provided with a mounting block 8, the lever 41 is rotatably connected to the mounting block 8, and the mounting block 8 is used for abutting against the negative pressure insert needle 3 to limit the upward movement stroke of the negative pressure insert needle 3, so that the negative pressure insert needle 3 is prevented from moving upwards to exceed the stroke, and the negative pressure insert needle 3 is separated from the negative pressure channel 22, specifically, when the mold is opened, the abutting block 31 abuts against the mounting block 8.
Specifically, as shown in fig. 4, the negative pressure channel 22 includes a first channel 221 and a second channel 222 which are sequentially arranged and communicated along a first direction, the first channel 221 is communicated with the air outlet 21, the second channel 222 is communicated with the air inlet 23, the cross-sectional width of the first channel 221 is larger than that of the second channel 222 along the first direction, the negative pressure insert 3 is used for blocking the second channel 222, and the purpose of designing the second channel 222 is to improve the sealing property; further, in the process of blocking the second channel 222, when the negative pressure insert pin 3 just reaches the second channel 222, part of air is still present in the second channel 222, if the length of the second channel 222 is too large, the negative pressure between the second channel 222 and the air inlet 23 may disappear, and the insert cannot be adsorbed on the negative pressure box 2, so the length range of the second channel 222 is 2 mm-5 mm.
Further, in order to improve the tightness between the fixed die 1 and the negative pressure box 2, a side surface of the negative pressure box 2 provided with the air outlet 21 is provided with a first sealing rubber ring 5 surrounding the air outlet 21, and the negative pressure box 2 is in sealing connection with the fixed die 1 through the sealing rubber ring. Further, the fixed ring plate 11 is in sealing connection with the negative pressure insert needle 3 through the second sealing rubber ring 6, and the first rubber ring and the second rubber ring can also exist at the same time, so that better sealing performance is provided for the whole negative pressure passage.
Further, the present invention also provides another embodiment, which is different from the above embodiment:
the end of the reset insert pin 42, which is far away from the lever 41, is fixedly connected with the movable mould 9, so that the movable mould 9 can drive the reset insert pin 42 to be separated from the lever 41 to move when the mould is opened, and the negative pressure insert pin 3 only needs to be abutted against the lever 41 to restore the mould opening state when the mould is opened, so that the maximum elastic force required by the rebound of the spring 32 can be reduced, the rebound speed of the spring 32 is faster, and the response speed of the driving mechanism 4 is improved.
The working process of the invention is as follows: the working mode of the die comprises a die assembly process and a die opening process, when the die is assembled, the movable die 9 moves towards the fixed die 1 and pushes the reset insert pin 42 to move reversely along the first direction, the reset insert pin 42 indirectly pushes the negative pressure insert pin 3 to move in the negative pressure channel 22 along the first direction through the lever 41 and seals the air inlet 23, when the die is opened, the movable die 9 moves along the first direction, the extruded spring 32 rebounds and drives the negative pressure insert pin 3 to move reversely along the first direction, and the air inlet 23 is communicated with the negative pressure channel 22 again.
In summary, when the mold capable of adsorbing the inserts is assembled, the reset insert pin 42 connected with the movable mold 9 drives the negative pressure insert pin 3 to squeeze the spring 32 and block the air inlet 23, so that the effect of adsorbing the inserts and simultaneously automatically blocking the air inlet 23 is realized, and the negative pressure channel 22 is prevented from being blocked by injection molding materials.
It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the invention. Furthermore, references to orientations or positional relationships of the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc. are based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (10)
1. A mold for a positionable insert, comprising:
a fixed mold; an air outlet channel communicated with the outside is formed in the fixed die;
the negative pressure box is internally provided with a negative pressure channel along a first direction, the negative pressure channel comprises an air inlet and an air outlet, the air inlet is used for adsorbing the insert, the air outlet is used for being communicated with a negative pressure machine, and the air outlet is communicated with the air outlet channel;
the negative pressure insert pin penetrates into the negative pressure channel along a first direction through the air outlet, a spring is sleeved on the negative pressure insert pin, an abutting block is arranged on the negative pressure insert pin, a fixed ring plate for the negative pressure insert pin to penetrate is fixed on the fixed die, the abutting block abuts against a first end of the spring along the first direction, and a second end of the spring abuts against the fixed ring plate;
the driving mechanism comprises a lever and a reset insert pin, the lever is rotationally connected to the fixed die, a first end of the lever is abutted against the reset insert pin, and a second end of the lever is abutted against the negative pressure insert pin and used for pushing the negative pressure insert pin to move along a first direction;
and when the movable die moves towards the fixed die, the movable die can drive the reset insert pin to drive the lever to rotate, and the negative pressure insert pin is enabled to seal the air inlet.
2. The insert-positionable mold of claim 1, wherein a plane of the negative pressure case on which the air inlet is formed is provided with a positioning groove for insert insertion, the positioning groove being in communication with the air inlet.
3. The insert-positionable mold of claim 2, wherein a side of the negative pressure cartridge that opens the air inlet is connected with a securing lever that extends in a first direction for insert nesting, the positioning groove being disposed around the securing lever.
4. The positionable insert mold of claim 1, wherein an inner wall of the negative pressure case that forms the air inlet is an elastomeric material.
5. The insert-positionable mold of claim 1, wherein the stationary mold is provided with a mounting block, the lever is rotatably coupled to the mounting block, and the mounting block is adapted to abut the negative pressure insert to limit the upward travel of the negative pressure insert.
6. The insert positionable mold of claim 1, wherein the negative pressure passage comprises a first passage and a second passage arranged and in communication in sequence along a first direction, the first passage in communication with the air outlet and the second passage in communication with the air inlet, the first passage having a cross-sectional width greater than a cross-sectional width of the second passage along the first direction, the negative pressure insert being configured to block the second passage.
7. The positionable insert mold of claim 6, wherein the length of said second channel ranges from 2mm to 5mm.
8. The mold of claim 1, wherein a side of the negative pressure box on which the air outlet is provided with a first sealing rubber ring surrounding the air outlet, and the negative pressure box is in sealing connection with the fixed mold through the sealing rubber ring.
9. The insert positionable mold of claim 1, wherein the fixed ring plate is sealingly connected to the negative pressure insert by a second sealing ring.
10. The positionable insert mold of claim 1, wherein an end of the reset insert distal from the lever is fixedly connected to the movable mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310148750.2A CN116080005A (en) | 2023-02-21 | 2023-02-21 | Mold capable of positioning inserts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310148750.2A CN116080005A (en) | 2023-02-21 | 2023-02-21 | Mold capable of positioning inserts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116080005A true CN116080005A (en) | 2023-05-09 |
Family
ID=86214053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310148750.2A Pending CN116080005A (en) | 2023-02-21 | 2023-02-21 | Mold capable of positioning inserts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116080005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117259715A (en) * | 2023-11-21 | 2023-12-22 | 爱柯迪股份有限公司 | Die-in mechanism and die-in method for aluminum die-casting inserts |
-
2023
- 2023-02-21 CN CN202310148750.2A patent/CN116080005A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117259715A (en) * | 2023-11-21 | 2023-12-22 | 爱柯迪股份有限公司 | Die-in mechanism and die-in method for aluminum die-casting inserts |
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