CN215242563U - Turning mold insert and flow distribution plate applying same - Google Patents
Turning mold insert and flow distribution plate applying same Download PDFInfo
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- CN215242563U CN215242563U CN202121633020.4U CN202121633020U CN215242563U CN 215242563 U CN215242563 U CN 215242563U CN 202121633020 U CN202121633020 U CN 202121633020U CN 215242563 U CN215242563 U CN 215242563U
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Abstract
The utility model belongs to the technical field of the hot runner, especially, relate to a turning mold insert and use flow distribution plate of turning mold insert. A sharp corner is formed at the intersection of the flow channels of the original flow distribution plate after gun drilling, and in order to reduce the shearing rate of plastic and the injection pressure, the problem is solved by installing a corner insert with an arc surface in the flow channel of the flow distribution plate. The mold insert comprises an insert body, wherein an insert cushion block is arranged on the top surface of the insert body, a flow passage is arranged in the insert body in a penetrating manner in the horizontal direction, the flow passage comprises a flow passage hole I, a flow passage hole II and a flow passage hole III which are communicated with each other, and the flow passage hole II is adjacent to the flow passage hole III; and an arc surface II is arranged at the position, located in the flow passage hole II, of the insert body, and an arc surface III is arranged at the position, located in the flow passage hole III, of the insert body.
Description
Technical Field
The utility model belongs to the technical field of the hot runner, especially, relate to a turning mold insert and use flow distribution plate of turning mold insert.
Background
The hot runner ensures that the plastic of the runner and the sprue is kept in a molten state by a heating method. Because the heating rod and the heating ring are arranged near or in the center of the runner, the whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that the plastic in the runner is kept molten, the runner does not need to be opened after the machine is stopped, the solidified material is taken out, and the runner is heated to the required temperature when the machine is started again. The hot runner technology has the advantages of saving raw materials, reducing cost, shortening molding period, improving machine efficiency, improving surface quality and mechanical property of products, improving the surface attractiveness of injection molding products and the like. However, with the wide application of hot runner technology, various defects appear in different degrees in some high-quality plastic parts fields, the requirements for different products and mold structures are different, and in order to meet the higher requirements of customers on products and improve market competitiveness, hot runner systems are developing new structures to meet the requirements of customers on products.
The hot runner corner insert is designed for the complex structure and the large injection pressure of a large-scale mold product. The overlarge injection pressure has great influence on injection molding, the overlarge injection pressure can increase the compactness of a product, and the shrinkage rate of the product after cooling is reduced, so that the overall dimension of the product is larger, and the situation that the injection pressure is too small is the opposite. In addition, the excessive injection pressure can also cause the ejection of a plastic part to be unfavorable, the sticking, the warping deformation and the white ejection are easy to generate, and burrs are easy to appear on a hot runner sprue.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a corner insert and a flow distribution plate applying the corner insert; a sharp corner is formed at the intersection of the flow passages of the original flow distribution plate after gun drilling, and in order to reduce the shearing rate of plastic and the injection pressure, the problem is solved by installing a corner insert with an arc surface in the flow passage of the flow distribution plate.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a corner insert comprises an insert body, wherein an insert cushion block is arranged on the top surface of the insert body, a flow passage is arranged in the insert body in a penetrating manner in the horizontal direction, the flow passage comprises a flow passage hole I, a flow passage hole II and a flow passage hole III which are communicated with each other, and the flow passage hole II is adjacent to the flow passage hole III; and an arc surface II is arranged at the position, located in the flow passage hole II, of the insert body, and an arc surface III is arranged at the position, located in the flow passage hole III, of the insert body.
In the corner insert, the diameter of the insert cushion block is larger than that of the insert body.
The insert cushion block comprises a body mounting portion and an insert fixing portion, the body mounting portion is fixed to the top surface of the insert body, and the insert fixing portion is fixed to the flow distribution plate.
Foretell turning mold insert, body installation department center department is equipped with screw hole I, mold insert body top surface center department is equipped with screw hole II, install the set screw in screw hole I and the screw hole II.
In the corner insert, the bottom surface of the insert fixing part is symmetrically provided with two insert screws, and an insert pin is arranged between the two insert screws.
A manifold employing corner inserts, said manifold including a corner insert as described above.
In the flow distribution plate using the corner insert, the flow distribution plate is provided with an insert mounting hole for accommodating the corner insert, the bottom surface of the insert mounting hole is provided with an exhaust hole penetrating through the flow distribution plate, and the flow distribution plate is provided with a flow passage I, a flow passage II and a flow passage III which are respectively communicated with the flow passage hole I, the flow passage hole II and the flow passage hole III.
According to the flow distribution plate applying the corner insert, the insert mounting hole comprises the body mounting hole and the cushion block mounting hole, and the insert screw hole and the insert pin hole which are formed in the flow distribution plate are formed in the cushion block mounting hole.
The utility model discloses the flow distribution plate of turning mold insert and applied turning mold insert's advantage is:
1. the utility model discloses turning mold insert and applied turning mold insert's flow distribution plate, turning mold insert structural design is simple, has reduced shear rate and injection pressure behind the arc surface structure with the closed angle structure change, and glossy arc surface can also improve and trade look efficiency moreover. The requirement of customers on optimizing product molding requiring that the injection pressure of a large mold is reduced as much as possible is met, and the hot runner technology of the department of China is led to develop a larger market. The problem of large injection pressure of a large-scale mold can be solved by applying the corner insert to the flow distribution plate.
2. The utility model discloses turning mold insert and applied turning mold insert's flow distribution plate, this application structural design is fine has compensatied complete flow distribution plate runner turning and has been the problem of closed angle, and processing convenient operation moreover, the runner is processed after the installation of turning mold insert, takes out the arc surface of the alternately limit turning mold insert of processing runner after the runner is accomplished. And after the machining is finished, positioning and mounting the corner insert on the flow distribution plate by virtue of an insert screw and an anti-rotation insert pin. The cross connection of the flow passage holes of the arc surface and the flow passages of the flow distribution plate greatly reduces the injection molding shearing force of the sizing material, well reduces the injection molding pressure and optimizes the product quality.
Drawings
FIG. 1 is a schematic structural view of a corner insert of the present invention;
FIG. 2 is a schematic structural view of the corner insert of the present invention;
FIG. 3 is a schematic view of the insert block structure of the present invention;
FIG. 4 is a schematic view of a part of the structure of a splitter plate using corner inserts according to the present invention;
fig. 5 is a schematic view of a partial structure of the distribution plate of fig. 4 with insert mounting holes according to the present invention;
fig. 6 is a schematic view of a partial structure of the distribution plate of fig. 4 with insert mounting holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the corner insert comprises an insert body 1, wherein an insert cushion block 2 is arranged on the top surface of the insert body 1, a flow passage penetrates through the insert body 1 in the horizontal direction and comprises a flow passage hole i 3, a flow passage hole ii 4 and a flow passage hole iii 5 which are communicated with each other, and the flow passage hole ii 4 is adjacent to the flow passage hole iii 5; and an arc surface II 41 is arranged at the position, located at the flow passage hole II 4, of the insert body 1, and an arc surface III 51 is arranged at the position, located at the flow passage hole III 5, of the insert body 1.
As shown in fig. 1, in the corner insert, the diameter of the insert pad 2 is larger than that of the insert body 1.
As shown in fig. 2 and 3, in the corner insert, the insert pad 2 includes a body mounting portion 21 and an insert fixing portion 22, the body mounting portion 21 is fixed to the top surface of the insert body 1, and the insert fixing portion 22 is fixed to the flow distribution plate.
As shown in fig. 2 and 3, in the corner insert, a screw hole i 211 is formed in the center of the body mounting portion 21, a screw hole ii 11 is formed in the center of the top surface of the insert body 1, and a fixing screw 6 is installed in each of the screw holes i 211 and the screw hole ii 11.
As shown in fig. 3, in the corner insert, two insert screws 221 are symmetrically disposed on the bottom surface of the insert fixing portion 22, and an insert pin 222 is disposed between the two insert screws 221.
Referring to fig. 4, a diverter plate using corner inserts is shown, and the diverter plate 7 includes the corner inserts as described above.
As shown in fig. 4 and 5, in the above-mentioned flow distribution plate using the corner insert, an insert mounting hole 71 for accommodating the corner insert is formed in the flow distribution plate 7, an exhaust hole 72 penetrating through the flow distribution plate 7 is formed in a bottom surface of the insert mounting hole 71, and a flow channel i 73, a flow channel ii 74, and a flow channel iii 75 respectively communicated with the flow channel hole i 3, the flow channel hole ii 4, and the flow channel hole iii 5 are formed in the flow distribution plate 7.
As shown in fig. 5 and 6, in the above-mentioned splitter plate using the corner insert, the insert mounting hole 71 includes a body mounting hole 711 and a block mounting hole 712, and an insert screw hole 713 and an insert pin hole 714 opened in the splitter plate 7 are provided in the block mounting hole 712.
The corner insert of this application can be used to the flow distribution plate of two kinds of structures: in the first, the structure form that two flow channels in the flow distribution plate are perpendicular to each other, and the perpendicular structure is better understood and will not be described in detail herein; and the second acute angle structure form can be used for any acute angle structure form of the intersection of two adjacent flow passages in the flow distribution plate. For ease of understanding, the present application is illustrated in the second configuration described above, as shown in FIG. 4. The corner insert and the flow distribution plate applying the corner insert are processed, assembled and used as follows:
firstly, processing the shape of the flow distribution plate 7 without forming a flow channel, and firstly, finely processing an insert mounting hole 71 and an exhaust hole 72 at the bottom of the insert mounting hole 71; then processing a corner insert structure; the corner insert is then mounted in the insert mounting hole 71 of the manifold plate 7 with the insert screw 221 secured in the insert screw hole 713 and the insert pin 222 secured in the insert pin hole 714 for anti-rotation positioning.
And secondly, starting to drill a gun drill to process a flow channel I73, a flow channel II 74 and a flow channel III 75 of the flow distribution plate 7. After the three runners are machined, taking out the corner insert, wherein a runner hole I3, a runner hole II 4 and a runner hole III 5 are formed in the insert body 1 of the corner insert; and then, finishing sharp corners formed by the intersection points of the flow passage holes II 4 and III 5 into arc surfaces II 41 and III 51.
And thirdly, mounting the machined corner insert into the insert mounting hole 71 of the diversion plate 7, fixing the insert screw 221 in the insert screw hole 713, fixing the insert pin 222 in the insert pin hole 714, and completing the machining and mounting by applying the diversion plate of the corner insert.
The glue stock enters the injection nozzle flow channel through the matching of the ball head of the injection molding machine and the ball head of the injection nozzle in the injection molding process, then enters the flow distribution plate through the flow distribution plate flow channel, the glue stock enters the flow channel hole I3 through the flow channel I73, then enters the flow channel hole II 4, the flow channel hole III 5, the flow channel II 74 and the flow channel III 75, the shearing rate and the injection pressure of the glue stock passing through are reduced by the arc surface II 41 and the arc surface III 51 formed by the cross points, the color changing efficiency can also be improved by the smooth arc surface, and then the glue stock flows into the cavity to complete injection molding.
The flow passage holes ii 4 and iii 5 on the insert body 1 are designed according to the included angle formed by the flow passages ii 74 and iii 75 on the flow distribution plate 7, as shown in a1 in fig. 4, which may be vertical 90 °, or may be other acute angles. The placement position of the corner insert is not simply placed in the runner intersection insert mounting hole 71 of the flow distribution plate 7, but the placement position is selected according to the size of the runner diameter and the intersection angle. The purpose is that the corner insert is easy to process a circular arc surface after the runner is processed, the resistance of the corner of the runner is reduced to the maximum extent, and the injection molding pressure is reduced.
The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. The present invention can be modified or modified by those skilled in the art without departing from the technical idea of the present invention, and such modifications or modifications naturally fall within the scope of the present invention.
Claims (8)
1. A corner insert characterized by: the mold insert comprises an insert body (1), wherein an insert cushion block (2) is arranged on the top surface of the insert body (1), a flow passage is arranged in the insert body (1) in a penetrating manner in the horizontal direction, the flow passage comprises a flow passage hole I (3), a flow passage hole II (4) and a flow passage hole III (5) which are communicated with each other, and the flow passage hole II (4) is adjacent to the flow passage hole III (5); and an arc surface II (41) is arranged at the position, located in the flow passage hole II (4), of the insert body (1), and an arc surface III (51) is arranged at the position, located in the flow passage hole III (5), of the insert body (1).
2. The corner insert according to claim 1, wherein: the diameter of the insert cushion block (2) is larger than that of the insert body (1).
3. The corner insert according to claim 2, wherein: insert cushion block (2) include body installation department (21) and insert fixed part (22), body installation department (21) are fixed with insert body (1) top surface, insert fixed part (22) are fixed with the flow distribution plate.
4. The corner insert according to claim 3, wherein: body installation department (21) center department is equipped with screw hole I (211), mold insert body (1) top surface center department is equipped with screw hole II (11), install fixed screw (6) in screw hole I (211) and screw hole II (11).
5. The corner insert according to claim 3, wherein: the bottom surface of the insert fixing part (22) is symmetrically provided with two insert screws (221), and an insert pin (222) is arranged between the two insert screws (221).
6. A flow distribution plate applying a corner insert is characterized in that: the diverter plate (7) comprising a corner insert according to any one of claims 1 to 5.
7. The corner insert-applied manifold plate according to claim 6, wherein: the mold insert is characterized in that a mold insert mounting hole (71) for accommodating a corner mold insert is formed in the flow distribution plate (7), an exhaust hole (72) penetrating through the flow distribution plate (7) is formed in the bottom surface of the mold insert mounting hole (71), and a flow channel I (73), a flow channel II (74) and a flow channel III (75) which are respectively communicated with the flow channel hole I (3), the flow channel hole II (4) and the flow channel hole III (5) are formed in the flow distribution plate (7).
8. The corner insert-applied manifold plate according to claim 7, wherein: the insert mounting hole (71) comprises a body mounting hole (711) and a cushion block mounting hole (712), and an insert screw hole (713) and an insert pin hole (714) which are formed in the flow distribution plate (7) are formed in the cushion block mounting hole (712).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121633020.4U CN215242563U (en) | 2021-07-19 | 2021-07-19 | Turning mold insert and flow distribution plate applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121633020.4U CN215242563U (en) | 2021-07-19 | 2021-07-19 | Turning mold insert and flow distribution plate applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215242563U true CN215242563U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121633020.4U Active CN215242563U (en) | 2021-07-19 | 2021-07-19 | Turning mold insert and flow distribution plate applying same |
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| CN (1) | CN215242563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952197A (en) * | 2022-06-11 | 2022-08-30 | 上海占瑞模具设备有限公司 | 3D printing runner flow distribution plate machining process |
-
2021
- 2021-07-19 CN CN202121633020.4U patent/CN215242563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952197A (en) * | 2022-06-11 | 2022-08-30 | 上海占瑞模具设备有限公司 | 3D printing runner flow distribution plate machining process |
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