CN216068434U - Injection mold and molding equipment - Google Patents
Injection mold and molding equipment Download PDFInfo
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- CN216068434U CN216068434U CN202121725272.XU CN202121725272U CN216068434U CN 216068434 U CN216068434 U CN 216068434U CN 202121725272 U CN202121725272 U CN 202121725272U CN 216068434 U CN216068434 U CN 216068434U
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Abstract
The embodiment of the application discloses injection mold and former, injection mold includes: the lower die is used for placing an injection molding piece; the upper die is provided with a die cavity on the surface of one side close to the lower die, and a positioning hole communicated with the die cavity; the support needle is inserted into the positioning hole and is configured to be movable to a receiving position where the support needle is withdrawn from the mold cavity and to a positioning position where the support needle is pressed on the surface of the lower mold; a control module for controlling the support needle to reciprocate between the positioning position and the storage position. The technical effect of the embodiment of the application is that the injection molding piece can be positioned in the injection molding process. The movable supporting pin reduces the influence on the structure of the formed part in the injection molding process.
Description
Technical Field
This application belongs to the mould field, specifically, this application relates to an injection mold and former.
Background
With the great popularity of electronic products in recent years, more and more products require complicated molding processes. The current state of the art is to put the printed and molded injection molding part into an injection mold, and then inject the liquid injection molding material on the back of the molded sheet material, so that the injection molding material and the sheet material are joined into a whole and cured to obtain the molded part.
In the injection molding process, in the injection process of liquid injection molding materials, an injection molding part is easy to float in an injection mold so as to change the position, and a molded part is difficult to mold.
However, if the positioning rod is used for limiting the injection molding part, the injection molded part has obvious positioning holes, which affects the performance and appearance of the molded part.
Therefore, improvement in the structure of the injection mold is required.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a new technical scheme of an injection mold and a forming device.
According to a first aspect of the present application, there is provided an injection mold comprising:
the lower die is used for placing an injection molding piece;
the upper die is provided with a die cavity on the surface of one side close to the lower die, and a positioning hole communicated with the die cavity;
the support needle is inserted into the positioning hole and is configured to be movable to a receiving position where the support needle is withdrawn from the mold cavity and to a positioning position where the support needle is pressed on the surface of the lower mold;
a control module for controlling the support needle to reciprocate between the positioning position and the storage position.
Optionally, at least two of the supporting needles are included.
Optionally, a sealing ring is arranged in the positioning hole, and the sealing ring is arranged on the periphery of the supporting needle.
Optionally, each support pin is provided with at least two sealing rings.
Optionally, the control module includes:
a motor slide disposed on the upper mold;
a motor assembly movably disposed in the motor slide, the support pin being connected with the motor assembly;
a controller, the motor assembly being electrically connected to the controller;
the motor assembly is configured to move along the motor slideway to drive the supporting needle to move between the storage position and the positioning position.
Optionally, the motor slide is disposed on a side surface of the upper mold away from the lower mold, and the motor slide is perpendicular to the upper mold.
Optionally, the support pin is arranged in parallel with the motor slideway.
Optionally, the support pin is detachably and fixedly connected with the motor assembly.
Optionally, the inner wall of the mold cavity is provided with a pressure sensor, and the pressure sensor is electrically connected with the controller.
Optionally, a positioning groove is formed in the surface of one side, close to the upper die, of the lower die, and the positioning groove is used for placing the injection molding piece.
According to a second aspect of the present application, there is provided a molding apparatus including the injection mold of the first aspect.
One technical effect of the embodiment of the application is as follows: the injection molding piece can be positioned in the injection molding process. The movable supporting pin reduces the influence on the structure of the formed part in the injection molding process.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
FIG. 1 is an exploded view of an injection mold provided in an embodiment of the present application;
FIG. 2 is a schematic view of an injection mold according to an embodiment of the present disclosure with a supporting pin in a positioning position;
FIG. 3 is a schematic view of a support pin of an injection mold according to an embodiment of the present disclosure in a storage position;
fig. 4 is a schematic connection structure diagram of a controller of an injection mold according to an embodiment of the present application.
Wherein: 1-lower mould; 11-a positioning groove; 2, mounting a mold; 21-a mold cavity; 22-positioning holes; 3-supporting the needle; 4-a control module; 41-motor slide; 42-a motor assembly; 43-a controller; 44-a pressure sensor; 5-sealing ring; 6-injection molding; 7-forming the part.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1, the present application provides an injection mold including an upper mold 2, a lower mold 1, a support pin 3, and a control module 4.
The injection molding device comprises a lower die 1, wherein the lower die 1 is used for placing an injection molding piece 6, and the injection molding piece 6 is placed on the upper surface of the lower die 1.
The upper die 2, the mould cavity 21 has been seted up to the side surface that goes up mould 2 and be close to bed die 1, and the injection molding material is poured into in the mould cavity 21 and is moulded. The side of the upper die 2 away from the lower die 1 is provided with a positioning hole 22, the positioning hole 22 is communicated with the die cavity 21, and the positioning hole 22 communicates the die cavity 21 with the outside.
And a support pin 3, the support pin 3 being inserted into the positioning hole 22, the support pin 3 being configured to be movable to a storage position where it exits the cavity 21 and to a positioning position where it presses the injection molded part 6 against the surface of the lower mold 1.
When the supporting needle 3 is located at the positioning position, the upper die 2 and the lower die 1 are buckled at the moment, and the distance between the end part of one side of the supporting needle 3 close to the lower die 1 and the lower die 1 is the same as the thickness of the injection molding piece 6. At the moment, the supporting needle 3 is positioned in the die cavity 21, the end part of the supporting needle 3 close to one side of the lower die 1 is abutted against the injection molding piece 6, the injection molding piece 6 is abutted against the surface of the lower die 1, and the supporting needle 3 positions the injection molding piece 6.
When the supporting needle 3 is located at the accommodating position, the mold cavity 21 is filled with injection molding materials, and the distance between the end part of the supporting needle 3 close to the lower mold 1 and the lower mold 1 is larger than the thickness of the mold cavity 21 along the direction vertical to the lower mold 1. At the moment, the support needle 3 completely exits from the die cavity 21, the end part of the support needle 3 close to one side of the lower die 1 is separated from the injection molding part 6, the support needle 3 is separated from the injection molding material, and the injection molding part 6 is positioned and integrally molded under the action of gravity of the injection molding material.
And the control module 4 is used for controlling the supporting needle 3 to reciprocate between the positioning position and the containing position.
Through setting up control module 4 and support needle 3, after last mould 2 and bed die 1 lock, control support needle 3 passes locating hole 22 and moves to the inside of die cavity 21, until with injection molding 6 contact to with injection molding 6 location in bed die 1 surface, later carry out the pouring of injection molding material to the inside of die cavity 21 again. After the injection molding material is full of the inside of the mold cavity 21, the injection molding material is gradually solidified, before the injection molding material is completely solidified, the control module 4 controls the supporting needle 3 to move to the containing position, the injection molding part 6 is positioned under the action of gravity of the injection molding material, the supporting needle 3 is completely separated from the injection molding material when being positioned at the containing position, the molded part 7 after injection molding is complete in appearance, and the position of the injection molding part 6 is accurate.
Optionally, the injection mould comprises at least two support needles 3.
The injection mold can comprise at least two support needles 3, when two or more stress points exist on the injection molding part 6, the injection molding part 6 is not easy to displace, the positioning effect of the support needles 3 on the injection molding part 6 is improved, and the quality of the molded part 7 after injection molding is improved. For example, in the embodiment shown in fig. 2, two support needles 3 are arranged at intervals, the injection molded part 6 to be positioned can be a flat sheet or a sheet with an uneven surface, and the two support needles 3 arranged at intervals can position different positions of the injection molded part 6, so that the positioning stability of the support needles 3 on the injection molded part 6 is improved.
Optionally, a sealing ring 5 is arranged in the positioning hole 22, and the sealing ring 5 is arranged on the periphery of the support needle 3. As shown in fig. 3, a sealing ring 5 is sleeved outside the supporting needle 3, the sealing ring 5 is fixedly installed inside the positioning hole 22, and the supporting needle 3 penetrates through the sealing ring 5 to be connected with the control module 4. When the supporting pin 3 moves, the packing 5 is stationary with respect to the upper mold 2. When the support needle 3 is moved to the storage position, the positioning hole 22 is sealed by the seal ring 5.
The sealing ring 5 sleeved on the support needle 3 is used for sealing the positioning hole 22, so that the possibility of leakage of the liquid injection molding material from the positioning hole 22 is reduced. In addition, because the die cavity 21 is communicated with the outside through the positioning hole 22, the arrangement of the sealing ring 5 can also reduce the possibility that external dust impurities enter the die cavity 21 through the positioning hole 22, improve the cleanliness of the die cavity 21 and further improve the cleanliness of the molded part 7 after injection molding.
Alternatively, referring to fig. 3, the outer circumference of each supporting needle 3 is provided with at least two sealing rings 5. In this embodiment, two seal rings 5 are fitted around the outer periphery of one supporting needle 3. One sealing ring 5 is close to one side of the upper die 2, which is provided with the die cavity 21, and one sealing ring 5 is close to the outer surface of one side of the upper die 2, which is far away from the lower die 1.
When a sealing ring 5 is arranged, because the outer diameter of the sealing ring 5 is larger than that of the supporting needle 3, when the supporting needle 3 moves in the positioning hole 22, the supporting needle 3 is easy to shake, and at least two sealing rings 5 are arranged on each supporting needle 3, so that the stability of the supporting needle 3 in the moving process in the positioning hole 22 is improved. Furthermore, the sealing effect of the support pin 3 on the positioning hole 22 can be improved.
Optionally, referring to fig. 1 and 2, the control module 4 includes:
and the motor slide way 41 is arranged on the surface of one side, away from the lower die 1, of the upper die 2, and the motor slide way 41 is perpendicular to the upper die 2. In this embodiment, two motor slide ways 41 are provided, the two motor slide ways 41 are parallel to each other, and the positioning hole 22 is located between the two motor slide ways 41. The motor slideway 41 and the upper die 2 can be welded and fixed, and can be detachably and fixedly connected through bolt connection and other modes.
A motor assembly 42, the motor assembly 42 is movably disposed in the motor slide 41, the support pin 3 is connected with the motor assembly 42, and the support pin 3 is disposed on a side of the motor assembly 42 adjacent to the upper mold 2. In the present embodiment, the motor assembly 42 is a linear motor.
The controller 43 and the motor assembly 42 are electrically connected to the controller 43.
The motor assembly 42 is configured to move along the motor slide 41 to move the support pin 3 between the storage position and the positioning position.
The control module 4 provided by the present application realizes the movement of the supporting needle 3 by the motor assembly 42 electrically connected to the controller 43 sliding in the motor slide 41. Wherein motor element 42 and motor slide 41 sliding connection, motor slide 41 is used for leading and spacing motor element 42.
Alternatively, referring to fig. 2 and 3, a motor slide 41 is disposed on a side surface of the upper mold 2 away from the lower mold 1, and the motor slide 41 is perpendicular to the upper mold 2. The supporting needle 3 is arranged in parallel with the motor slide 41. The support needle 3 is detachably and fixedly connected with the motor assembly 42.
The detachable fixed connection is characterized in that the finger support needle 3 and the motor assembly 42 can be detached and separated; on the other hand, when the two are connected, the relative position between the two is fixed, and the relative rotation cannot occur. Such as bolted connections, threaded connections, etc. The support needle 3 is detachably and fixedly connected with the motor assembly 42, which is beneficial to replacing the support needle 3.
Optionally, referring to fig. 4, a pressure sensor 44 is adhered to the inner wall of the mold cavity 21, and the pressure sensor 44 is electrically connected to the controller 43. The controller 43 is connected with a lead wire, a wire feeding hole is formed in the upper die 2 and communicated with the die cavity 21, and a penetrating opening communicated with the wire feeding hole is formed in the inner wall of the die cavity 21. The pressure sensor 44 is sealed at the wire holes by glue and is flush with the inner wall surface of the mold cavity 21. The lead wire passes through the wire routing hole and leads the wire to the feed-through, which is electrically connected to the pressure sensor 44.
The upper mold 2 and the lower mold 1 are closed to start pouring the injection molding material, and the pouring condition in the mold cavity 21 is not easy to observe in the process. Because the position of the positioning hole 22 is blocked by the sealing ring 5, the inside of the mold cavity 21 is in a sealed state, and the pressure in the mold cavity 21 changes along with the increase of the injection plastic in the mold cavity 21. The pressure sensor 44 is configured to convert a pressure signal in the mold cavity 21 into an electrical signal, and transmit the electrical signal to the controller 43, and the controller 43 controls the motor assembly 42 to move the support pin 3. The pressure sensor 44 facilitates improved accurate control and monitoring of the injection molding compound injection process.
In addition, the threshold value of the pressure sensor 44 can be changed according to the density of different filling materials, so that different types of filling materials are adapted, and the application range of the filling mold is also widened.
Optionally, referring to fig. 1, a positioning groove 11 is formed in a surface of one side of the lower mold 1, which is close to the upper mold 2, and the positioning groove 11 is matched with the shape of the injection molded part 6.
The application also provides a molding device which can be a hot-press molding machine, an injection molding machine and the like, and the application is not particularly limited. The molding equipment comprises a machine body and the injection mold. The injection mold is configured to enable molding of the injection molded part 6 with the injection molding compound.
The application provides an injection mold's use does: in the positioning position according to fig. 2, the injection-molded part 6 is positioned by the support pins 3 when the injection-molded part is pushed into the mold cavity 21, so that it is not displaced or lifted. When the entire mold cavity 21 is filled with the filling material, the pressure sensor 44 senses a certain pressure value, and when the pressure value reaches a predetermined threshold value, the pressure value is collected by the pressure sensor 44 chip and transmitted to the motor assembly 42 through the controller 43, and the motor assembly 42 starts to rapidly drive the support pins 3 to return to the storage state (see fig. 3). Since the entire mold cavity 21 now has the same pressure, the supporting pin 3 is no longer required to bear against the injection molded part 6 in order to position the injection molded part 6. The supporting needle 3 is retracted and the injection-molded part 6 is not displaced or floated. After the injection molding and cooling of the potting compound are completed, the injection molded part 6 in the obtained molded part 7 can be well positioned, meanwhile, the appearance of the injection molded part 6 is complete, and the surface of the injection molded part 6 is not provided with the positioning holes 22.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (11)
1. An injection mold, comprising:
the lower die (1), the lower die (1) is used for placing an injection molding piece (6);
the die comprises an upper die (2), a die cavity (21) is formed in the surface of one side, close to the lower die (1), of the upper die (2), a positioning hole (22) is formed in the upper die (2), and the positioning hole (22) is communicated with the die cavity (21);
a support pin (3), the support pin (3) being inserted into the positioning hole (22), the support pin (3) being configured to be movable to a receiving position out of the mold cavity (21) and to a positioning position pressing an injection molded part (6) against the surface of the lower mold (1);
a control module (4), the control module (4) is used for controlling the support needle (3) to move back and forth between the positioning position and the containing position.
2. An injection mould according to claim 1, characterized in that it comprises at least two of said supporting needles (3).
3. An injection mould according to claim 1, characterized in that a sealing ring (5) is arranged in the positioning hole (22), the sealing ring (5) being arranged at the periphery of the support pin (3).
4. An injection mould according to claim 3, characterized in that at least two sealing rings (5) are arranged on each support pin (3).
5. An injection mould according to claim 1, characterized in that the control module (4) comprises:
a motor slide (41), the motor slide (41) being disposed on the upper mold (2);
a motor assembly (42), the motor assembly (42) being movably disposed in the motor slide (41), the support pin (3) being connected with the motor assembly (42);
a controller (43), the motor assembly (42) being electrically connected to the controller (43);
the motor assembly (42) is configured to be movable along the motor slide (41) to bring the support needle (3) to move between the storage position and the positioning position.
6. An injection mould according to claim 5, characterized in that the motor slide (41) is arranged on a side surface of the upper mould (2) remote from the lower mould (1), the motor slide (41) being perpendicular to the upper mould (2).
7. An injection mould according to claim 5, characterized in that the support pin (3) is arranged parallel to the motor slide (41).
8. An injection mould according to claim 5, characterized in that the support pin (3) is detachably and fixedly connected with the motor assembly (42).
9. An injection mould according to claim 5, characterized in that the inner wall of the mould cavity (21) is provided with a pressure sensor (44), which pressure sensor (44) is electrically connected with the controller (43).
10. An injection mould according to claim 1, characterized in that the lower mould (1) has a positioning groove (11) in its surface on the side close to the upper mould (2), said positioning groove (11) being used for placing the injection-moulded part (6).
11. A molding apparatus comprising the injection mold according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725272.XU CN216068434U (en) | 2021-07-27 | 2021-07-27 | Injection mold and molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725272.XU CN216068434U (en) | 2021-07-27 | 2021-07-27 | Injection mold and molding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216068434U true CN216068434U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121725272.XU Active CN216068434U (en) | 2021-07-27 | 2021-07-27 | Injection mold and molding equipment |
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| Country | Link |
|---|---|
| CN (1) | CN216068434U (en) |
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- 2021-07-27 CN CN202121725272.XU patent/CN216068434U/en active Active
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