CN210791908U - Runner ejection mechanism and injection mold with same - Google Patents
Runner ejection mechanism and injection mold with same Download PDFInfo
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- CN210791908U CN210791908U CN201921578440.XU CN201921578440U CN210791908U CN 210791908 U CN210791908 U CN 210791908U CN 201921578440 U CN201921578440 U CN 201921578440U CN 210791908 U CN210791908 U CN 210791908U
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- thimble
- runner
- flow channel
- return
- ejection mechanism
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Abstract
The utility model discloses a runner ejection mechanism and have its injection mold, runner ejection mechanism include first slider and the second slider that can the mutual motion, first slider and second slider can butt each other, are provided with the recess on two relative faces of first slider and second slider respectively, and the synthetic injection molding passageway of two recesses; a first runner ejector pin penetrates through the first sliding block, and the front end of the first runner ejector pin can enter the injection molding channel; a first elastic piece is arranged in the first sliding block and can drive the first flow channel thimble to move towards the injection molding channel; use the utility model discloses a runner ejection mechanism, the runner breaks away from with the automation of slider when can realizing the drawing of patterns, the utility model also discloses an injection mold.
Description
Technical Field
The utility model relates to an injection moulding field, in particular to runner ejection mechanism and have its injection mold.
Background
In the production process of the prior injection molding part, in order to ensure that the injection molding is easy to demould after being completed, only a single glue inlet point is generally arranged in the injection molding process of a single part, and for the injection molding part of a multi-cylinder type, the cylindricity of each cylindrical part of the part is not easy to ensure by the single glue inlet point.
Therefore, a new injection molding mode is provided in the prior art, a glue inlet point is arranged at the axis of each cylinder of the part, and due to the limitation of a slide structure, a runner is adhered to a slide by adopting the injection molding mode, so that the demolding work after injection molding is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a runner ejection mechanism, can peel off the runner automatically when the line position separates.
According to one aspect of the utility model, a flow channel ejection mechanism is provided, which comprises a first slide block and a second slide block which can move mutually, the first slide block and the second slide block can be mutually abutted, two surfaces of the first slide block opposite to the second slide block are respectively provided with a groove, and the two grooves are synthesized into an injection molding channel; a first runner ejector pin penetrates through the first sliding block, and the front end of the first runner ejector pin can enter the injection molding channel; a first elastic piece is arranged in the first sliding block and can drive the first flow channel ejector pin to move towards the injection molding channel.
Furthermore, a first fixed block is fixedly arranged on the first sliding block, the injection molding channel passes through the surface of the first fixed block, and the first flow channel thimble penetrates through the first fixed block.
Furthermore, a first return thimble penetrates through the first fixing block and is fixedly connected with the first flow channel thimble, and the length of the first return thimble is greater than that of the first flow channel thimble.
Furthermore, a second return thimble penetrates through the first fixing block and is fixedly connected with the first runner thimble, and the length of the second return thimble is greater than that of the first runner thimble.
Furthermore, the flow channel ejection device further comprises a first ejector pin panel, and the first ejector pin panel is fixedly connected with the first flow channel ejector pin and the first return ejector pin.
Furthermore, the flow channel ejection device further comprises a first ejector pin bottom plate, the first ejector pin bottom plate is buckled with the first ejector pin panel, and the first return ejector pin and the first flow channel ejector pin are arranged in a penetrating mode through the first ejector pin panel.
Furthermore, the first elastic element is a pressure spring, and the first elastic element is located between the first flow channel thimble and the first sliding block.
Further, a second fixed block is fixedly arranged on the second sliding block, and the injection molding channel passes through the surface of the second fixed block; a second flow channel thimble penetrates through the second fixed block, and at least part of the second flow channel thimble can enter the injection molding channel; an elastic piece is arranged in the second sliding block and can drive the second flow channel thimble to move towards the injection molding channel.
Furthermore, a third return thimble penetrates through the first fixing block and is fixedly connected with the second flow channel thimble, the length of the third return thimble is greater than that of the second flow channel thimble, and the third return thimble can be abutted against the first return thimble.
According to the utility model discloses an on the other hand provides an injection mold, contains above-mentioned runner ejection mechanism.
Furthermore, the injection mold also comprises a cavity, the cavity comprises at least two injection points, and each injection point is connected with an injection channel of the runner ejection mechanism.
Use the utility model discloses a runner ejection mechanism, after injection molding work accomplished, two slider phase separation, first runner thimble under the effect of elastic component, gradually stretch out first slider surface at the in-process of first slider motion, the runner that is arranged in the passageway of moulding plastics peels off under the effect of first runner thimble in the passageway of moulding plastics, finally makes the smooth drawing of patterns of runner, facilitates for next moulding plastics.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is an axonometric view of a runner ejection mechanism in embodiment 1 and embodiment 2 of the present invention;
fig. 2 is a front view of a runner ejection mechanism in embodiment 1 and embodiment 2 of the present invention;
FIG. 3 is a sectional view taken along the direction P-P of FIG. 2 in embodiment 1 (the second slider is omitted);
FIG. 4 is a sectional view taken along the line P-P of FIG. 2 in accordance with embodiment 2;
fig. 5 is a sectional view of the injection mold of example 3 taken along a parting plane.
The above figures contain the following reference numerals;
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Example 1
Referring to fig. 1 to 3, a flow channel ejection mechanism 1 includes a first slider 11 and a second slider 14 capable of moving relative to each other, the first slider 11 and the second slider 14 can abut against each other, two surfaces of the first slider 11 opposite to the second slider 14 are respectively provided with a groove, and the two grooves are combined into an injection molding channel a; a first runner thimble 125 penetrates through the first slider 11, and the front end of the first runner thimble 125 can enter the injection molding channel a; a first elastic element 123 is disposed in the first slider 11, and the elastic element can drive the first runner ejector pin 125 to move towards the injection channel a.
By applying the runner ejection mechanism 1 of the embodiment, after the injection molding operation is completed, the two slide blocks are separated from each other, the first runner ejector pin 125 gradually extends out of the surface of the first slide block 11 in the movement process of the first slide block 11 under the action of the elastic member, and the runner in the injection molding channel a is stripped from the injection molding channel a under the action of the first runner ejector pin 125, so that the runner is smoothly demolded, and convenience is provided for the next injection molding.
In this embodiment, the runner refers to an injection molded body formed by cooling and solidifying the gel in the injection molding channel a after the injection molding is completed and cooled.
In this embodiment, the first slider 11 and the second slider 14 are both provided with a groove, and when the first slider 11 and the second slider 14 abut against each other, the grooves on the two sliders surround to form an injection molding channel a.
Specifically, the first elastic member 123 can drive the return needle to move toward the injection channel a in various manners, such as applying a pushing force toward the injection channel a to the first flow channel needle 125 by using a compression spring, or applying a pulling force toward the injection channel a to the first flow channel needle 125 by using a tension spring.
Specifically, the first slider 11 is fixedly provided with a first fixing block 12, the injection channel a passes through the surface of the first fixing block 12, and the first flow channel thimble 125 penetrates through the first fixing block 12.
As shown in fig. 3, in order to automatically reset the first runner thimble 125 before the next injection molding, and prepare for ejecting the runner of the next injection molding, a first return thimble 1241 may be disposed through the first fixed block 12, the first return thimble 1241 is fixedly connected to the first runner thimble 125, and the length of the first return thimble 1241 is greater than the length of the first runner thimble 125.
When the first slide block 11 abuts against the second slide block 14, the first return thimble 1241 abuts against the second slide block 14, and since the first return thimble 1241 is longer than the first flow channel thimble 125, the first flow channel thimble 125 is fixed in the first slide block 11 under the action of the first return thimble 1241; when the first slide block 11 is separated from the second slide block 14, the first return pin 1241 is used to remove the action of the pushing force, and extends out of the first fixed block 12 together with the first flow channel pin 125 to push out the flow channel.
Further, in order to prevent the single return pin from generating an additional bending moment with respect to the first fluid passage fixing pin, a second return pin 1242 may be disposed through the first fixing block 12, the second return pin 1242 is fixedly connected to the first fluid passage pin 125, and the length of the second return pin 1242 is greater than the length of the first fluid passage pin 125.
As shown in fig. 3, in order to enable the first elastic element 123 to more uniformly apply a force to the first flow channel thimble 125 and the first return thimble 1241 and to fix the first flow channel thimble 125 and the first return thimble 1241, the first thimble panel 121 may be used. The first thimble panel 121 is fixedly connected to the first runner thimble 125 and the first return thimble 1241, and the first elastic element 123 is connected to the first thimble panel 121; the second runner needle 135 may be fixed to the first needle panel 121.
In order to facilitate installation of the first flow channel thimble 125 and the first return thimble 1241, a first thimble base plate 122 fastened to the first thimble panel 121 may be additionally provided, and the first return thimble 1241 and the first flow channel thimble 125 are both disposed through the first thimble panel 121; specifically, a plurality of stepped holes are formed in the first thimble panel 121, the first flow channel thimble 125 and the first return thimble 1241 pass through the first thimble panel 121, and then the first thimble base plate 122 is fastened, so that the first flow channel thimble 125 and the first return thimble 1241 are fixed under the combined action of the stepped hole step and the first thimble base plate 122.
Specifically, a compressed spring may be used as the first elastic element 123 according to usage requirements, and the first elastic element 123 is disposed between the first flow channel thimble 125 and the first slider 11, and specifically, the first elastic element 123 may be disposed between the first slider 11 and the first thimble base plate 122.
Example 2
On the basis of embodiment 1, as shown in fig. 4, in order to enable the runner to be peeled off from both the first slider 11 and the second slider 14 when being ejected, a second fixed block 13 may be fixedly disposed on the second slider 14, and the injection channel a passes through the surface of the second fixed block 13; a second flow channel thimble 135 penetrates through the second fixed block 13, and at least part of the second flow channel thimble 135 can enter the injection molding channel a; an elastic piece is arranged in the second sliding block 14, and the elastic piece can drive the return ejector pin to move towards the injection molding channel a.
The structures of the second fixed block 13, the second elastic element 133, the second flow channel thimble 135, the second thimble panel 131 and the second thimble base plate 132 may be similar to the structures of the first fixed block 12, the first elastic element 123, the first flow channel thimble 125, the first thimble panel 121 and the first thimble base plate 122 in the above embodiments.
In order to enable the first runner thimble 125 to automatically reset before the next injection molding and prepare for ejecting the runner of the next injection molding, a third return thimble 1341 may be disposed through the second thimble panel 131, the third return thimble 1341 is fixedly connected to the second runner thimble 135, the length of the third return thimble 1341 is greater than that of the second runner thimble 135, and the third return thimble 1341 may abut against the first return thimble 1241.
Here, a fourth return thimble 1342 may be added according to the arrangement manner of the second return thimble 1242 in embodiment 1; when the first slider 11 and the second slider 14 abut against each other, the first return thimble 1241 abuts against the third return thimble 1341, and the second return thimble 1242 abuts against the fourth return thimble 1342.
Example 3
As shown in fig. 5, this embodiment provides an injection mold based on embodiment 1 and embodiment 2, including the runner ejection mechanism 1 of embodiment 1 or embodiment 2.
The injection mold comprises cavities 2, each cavity 2 is provided with two injection points, and each injection point is connected with an injection channel a of the runner ejection mechanism 1.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.
Claims (10)
1. The flow channel ejection mechanism (1) is characterized by comprising a first sliding block (11) and a second sliding block (14) which can move mutually, wherein the first sliding block (11) and the second sliding block (14) can be abutted against each other, two opposite surfaces of the first sliding block (11) and the second sliding block (14) are respectively provided with a groove, and the two grooves are combined into an injection molding channel (a); a first runner thimble (125) penetrates through the first sliding block (11), and the front end of the first runner thimble (125) can enter the injection molding channel (a); a first elastic piece (123) is arranged in the first sliding block (11), and the elastic piece can drive the first flow channel thimble (125) to move towards the injection molding channel (a).
2. The runner ejection mechanism (1) according to claim 1, wherein a first fixed block (12) is fixedly disposed on the first slider (11), the injection channel (a) passes through a surface of the first fixed block (12), and the first runner thimble (125) penetrates through the first fixed block (12).
3. The flow channel ejection mechanism (1) according to claim 2, wherein a first return pin (1241) is disposed through the first fixing block (12), the first return pin (1241) is fixedly connected to the first flow channel pin (125), and a length of the first return pin (1241) is greater than a length of the first flow channel pin (125).
4. The runner ejection mechanism (1) according to claim 3, wherein a second return pin (1242) is disposed through the first fixed block (12), the second return pin (1242) is fixedly connected to the first runner pin (125), and a length of the second return pin (1242) is greater than a length of the first runner pin (125).
5. The flow channel ejection mechanism (1) according to claim 3, further comprising a first thimble panel (121), wherein the first thimble panel (121) is fixedly connected to the first flow channel thimble (125) and the first return thimble (1241).
6. The flow channel ejection mechanism (1) according to claim 5, further comprising a first thimble base plate (122), wherein the first thimble base plate (122) is fastened to the first thimble panel (121), and the first return thimble (1241) and the first flow channel thimble (125) are disposed through the first thimble panel (121).
7. The flow channel ejection mechanism (1) according to claim 2, wherein the first elastic member (123) is a compression spring, and the first elastic member (123) is located between the first flow channel ejector pin (125) and the first slider (11).
8. The runner ejection mechanism (1) according to claim 2, wherein a second fixed block (13) is fixedly arranged on the second slider (14), and the injection channel (a) passes through the surface of the second fixed block (13); a second flow channel thimble (135) penetrates through the second fixed block (13), and at least part of the second flow channel thimble (135) can enter the injection molding channel (a); an elastic piece is arranged in the second sliding block (14), and the elastic piece can drive the second flow passage thimble (135) to move towards the injection molding passage (a).
9. The flow channel ejection mechanism (1) according to claim 8, wherein a third return thimble (1341) is disposed through the first fixing block (12), the third return thimble (1341) is fixedly connected to the second flow channel thimble (135), a length of the third return thimble (1341) is greater than a length of the second flow channel thimble (135), and the third return thimble (1341) is capable of abutting against the first return thimble (1241).
10. An injection mould, characterized in that it comprises a runner ejection mechanism (1) according to any one of claims 1 to 9, and further comprises a cavity (2), wherein the cavity (2) comprises at least two injection points, and each injection point is connected with an injection channel (a) of the runner ejection mechanism (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921578440.XU CN210791908U (en) | 2019-09-20 | 2019-09-20 | Runner ejection mechanism and injection mold with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921578440.XU CN210791908U (en) | 2019-09-20 | 2019-09-20 | Runner ejection mechanism and injection mold with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210791908U true CN210791908U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921578440.XU Active CN210791908U (en) | 2019-09-20 | 2019-09-20 | Runner ejection mechanism and injection mold with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210791908U (en) |
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2019
- 2019-09-20 CN CN201921578440.XU patent/CN210791908U/en active Active
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