CN217704504U - Round pin axle working of plastics injection mold and feed inlet structure thereof - Google Patents
Round pin axle working of plastics injection mold and feed inlet structure thereof Download PDFInfo
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- CN217704504U CN217704504U CN202221747459.4U CN202221747459U CN217704504U CN 217704504 U CN217704504 U CN 217704504U CN 202221747459 U CN202221747459 U CN 202221747459U CN 217704504 U CN217704504 U CN 217704504U
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Abstract
The utility model provides a round pin axle working of plastics injection mold and feed inlet structure thereof. The utility model discloses a movable mould, be equipped with the profiled sheeting on the movable mould, be equipped with runner, the die cavity that is used for injection moulding round pin axle working of plastics more than two on the profiled sheeting, the runner includes entry, export, the export dock in the die cavity, the entrance is equipped with feeding piece, feeding piece includes the feed block, the feed block install in on the profiled sheeting, be equipped with feedstock channel on the feed block, feedstock channel includes vertical passageway, transverse channel, vertical passageway perpendicular to transverse channel, vertical passageway with be equipped with the arc passageway between the transverse channel, transverse channel with the entry docks mutually, transverse channel is close to in the entrance department of entry is equipped with the flaring section. The feed inlet structure can meet the feeding injection molding requirement of large-flow molten plastic.
Description
Technical Field
The utility model relates to an injection mold, in particular to round pin axle working of plastics injection mold and feed inlet structure thereof.
Background
The existing injection mold for injection molding of a plastic part of a pin shaft a is shown in the attached drawing 1, and the structure of the pin shaft a and the structure of the injection mold are shown in the attached drawing 1.
Wherein, round pin axle a working of plastics volume is less relatively, and the structure is simple relatively, for improving injection moulding efficiency, can set up a plurality of die cavities 5 on injection mold's movable mould 2 usually, and the die cavity 5 quantity that demonstrates in the attached drawing 1 is four, and four die cavities 5 are the matrix and arrange, also can set up corresponding runner 4 on movable mould 2, and molten plastics can flow into in the die cavity 5 through the runner.
Because the number of the cavities 5 is large, the number of the molten plastics injected by single injection molding is large, the whole flow channel is relatively wide, and the feeding injection molding requirement of large-flow molten plastics can be met only by redesigning the position of the feeding hole due to the fact that the traditional feeding hole has large influence on the flow speed of the molten plastics.
SUMMERY OF THE UTILITY MODEL
In view of this, the first objective of the present invention is to provide a feed inlet structure, which can satisfy the feeding injection molding requirement of large-flow molten plastic.
In order to solve the technical problem, the technical scheme of the utility model is that:
the utility model provides a feed inlet structure, includes the movable mould, be equipped with the profiled sheeting on the movable mould, be equipped with runner, the die cavity that is used for injection moulding round pin axle working of plastics more than two on the profiled sheeting, the runner includes entry, export, the export dock in the die cavity, the entrance is equipped with feeding piece, feeding piece includes the feed block, the feed block install in on the profiled sheeting, be equipped with feedstock channel on the feed block, feedstock channel includes vertical passageway, transverse channel, vertical passageway perpendicular to transverse channel, vertical passageway with be equipped with the arc passageway between the transverse channel, transverse channel with the entry docks mutually, transverse channel is close to in the entrance department of entry is equipped with the flaring section.
Through the technical scheme, the molten plastic can enter the feeding channel from the vertical channel, then enter the inlet of the flow channel from the transverse channel after colliding with the arc-shaped channel, and then enter the flow channel to finish the injection molding action of the molten plastic;
in the injection molding action process, firstly, the vertical channel is vertically arranged, so that an accelerated flow effect can be generated on the molten plastic; secondly, the arc-shaped channel can enable the molten plastic in the vertical channel to enter the transverse channel more quickly, and the influence on the flow speed of the molten plastic is reduced to the maximum extent; thirdly, the flaring section is positioned between the transverse channel and the inlet, the molten plastic in the transverse channel can rapidly flow into the flow channel through the flaring section, and the flow rate of the molten plastic is higher; therefore, the feed inlet structure can meet the feeding injection molding requirement of large-flow molten plastic.
Preferably, the forming plate is provided with a mounting groove, a flat groove surface is arranged on the groove wall of the mounting groove, a flat material surface is arranged on the side edge of the material inlet block, the material inlet block is mounted in the mounting groove, the flat material surface and the flat groove surface are in mutual plane fit, and the forming plate is connected with the material inlet block through a connecting bolt.
Through the technical scheme, firstly, the flat material surface and the flat groove surface are matched with each other, so that a circumferential positioning effect can be generated on the feeding block, and the installation is more accurate; secondly, also can increase the installation stability between feeding block and the mounting groove.
Preferably, the connecting bolt passes through the flat groove surface and is in threaded connection with the flat material surface.
Through above-mentioned technical scheme, connecting bolt connects between flat groove face and flat charge level, and connection stability is higher.
The utility model discloses a second purpose provides a round pin axle working of plastics injection mold, its feeding that can satisfy large-traffic melting plastics requirement of moulding plastics.
In order to solve the technical problem, the technical scheme of the utility model is that:
a round pin axle working of plastics injection mold, includes above-mentioned feed inlet structure.
Through the technical scheme, the feed inlet structure can reduce the influence on the flow rate of the molten plastic during injection to the maximum extent, and can meet the feeding injection molding requirement of the large-flow molten plastic.
Preferably, the device also comprises a fixed die, wherein a feeding sleeve is arranged on the fixed die;
the end part of the feeding block close to the vertical channel is a sleeved end, and the feeding sleeve is sleeved on the sleeved end.
Through above-mentioned technical scheme, cup joint the end and cup joint each other with the feeding cover, in the vertical passageway can be poured into more steadily to the molten plastics in the feeding cover, the stability in use is high.
Preferably, the diameter of the inner sleeve opening of the feeding sleeve is larger than the diameter of the channel opening of the vertical channel.
Through above-mentioned technical scheme, can increase the intraoral molten plastic velocity of flow of interior endotheca of feeding cover, then in entering into vertical passageway, promoted the speed of moulding plastics of whole molten plastic.
Preferably, a thimble is arranged in the movable die, and the thimble penetrates through the forming plate and enters the feeding channel.
Through the technical scheme, after the injection molding of the pin shaft in the cavity is completed, the movable mold and the fixed mold are mutually separated, and the ejector pin can automatically eject and drop the formed waste in the feeding channel.
Preferably, the feeding block is provided with a step surface, the step surface is provided with an annular bulge, the end part of the feeding sleeve is provided with an annular groove, and the annular bulge is embedded in the annular groove.
Through above-mentioned technical scheme, when cup jointing each other between feeding cover and the feeding piece and when the cooperation, the annular bulge inlays and locates in the annular groove, and feeding cover and feeding piece between be connected inseparabler, and it is higher that molten plastics enters into feedstock channel's stability by the feeding cover.
Drawings
FIG. 1 is a schematic structural view of a conventional injection molding pin plastic part injection mold;
FIG. 2 is a schematic structural diagram according to the first embodiment;
FIG. 3 is a schematic view of a feed block according to an embodiment;
FIG. 4 is a schematic top view illustrating a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram according to a second embodiment;
FIG. 6 is a schematic structural view of the second embodiment when the fixed mold is not installed;
fig. 7 is a schematic view of the cooperation between the feeding sleeve and the feeding block in the third embodiment.
Reference numerals: a. a pin shaft; 1. fixing a mold; 2. moving the mold; 3. forming a plate; 4. a flow channel; 41. an inlet; 42. an outlet; 5. a cavity; 6. a feeding member; 61. a material feeding block; 611. a feed channel; 6112. a vertical channel; 6113. a transverse channel; 6114. an arc-shaped channel; 6115. a flared section; 7. mounting grooves; 8. a flat groove surface; 9. leveling the material surface; 10. a connecting bolt; 11. a feeding sleeve; 12. a sleeving end; 13. and (4) a thimble.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
The first embodiment is as follows:
the utility model provides a feed inlet structure, refers to fig. 1 and fig. 2, includes movable mould 2, is equipped with profiled sheeting 3 on this movable mould 2, is equipped with runner 4 on this profiled sheeting 3, the more than two die cavities 5 that are used for injection moulding round pin axle a working of plastics, and the die cavity 5 quantity that demonstrates in this embodiment is four, and four die cavities 5 are the matrix and distribute.
Referring to fig. 2, the flow passage 4 includes an inlet 41 and an outlet 42, one inlet 41 is provided, four outlets 42 are provided, and the four outlets 42 are in one-to-one butt joint with the four cavities 5.
Referring to fig. 2 and 4, the forming plate 3 is provided with a mounting groove 7, and a flat groove surface 8 is provided on a groove wall of the mounting groove 7.
Referring to fig. 2 and 4, a feeding member 6 is disposed at the inlet 41, the feeding member 6 includes a feeding block 61, the feeding block 61 is mounted in the mounting groove 7, a flat surface 9 is disposed on a side of the feeding block 61, the flat surface 9 and the flat surface 8 are in flat surface fit with each other, and the forming plate 3 is connected to the feeding block 61 through a connecting bolt 10. The connecting bolt 10 passes through the flat groove surface 8 and is screwed to the flat charge surface 9.
Referring to fig. 3, the feeding block 61 is provided with a feeding channel 611, the feeding channel 611 includes a vertical channel 6112 and a transverse channel 6113, the vertical channel 6112 is perpendicular to the transverse channel 6113, an arc-shaped channel 6114 is disposed between the vertical channel 6112 and the transverse channel 6113, the transverse channel 6113 is in butt joint with the inlet 41, and a flaring segment 6115 is disposed at a channel opening of the transverse channel 6113 close to the inlet 41.
Referring to fig. 3, the vertical passage 6112, the horizontal passage 6113, and the arc-shaped passage 6114 all penetrate through the sidewall of the feeding block 61. To facilitate the discharge of waste material within the feed channel 611.
Example two:
a round pin axle plastic part injection mold is shown in figure 5, and further comprises a fixed mold 1 and a feed inlet structure in the first embodiment.
Referring to fig. 5 and 6, a feed sleeve 11 is provided on the stationary mold 1. The end of the feeding block 61 close to the vertical channel 6112 is a sleeve end 12, and the feeding sleeve 11 is sleeved on the sleeve end 12.
The diameter of the inner opening of the feeding sleeve 11 is larger than the diameter of the opening of the vertical passage 6112.
The movable mold 2 is provided with a thimble 13 therein, and the thimble 13 passes through the molding plate 3 and enters the feeding channel 611.
In the actual injection molding process, the movable mold 2 and the fixed mold 1 are matched with each other, molten plastic enters the feeding channel 611 of the feeding block 61 through the feeding sleeve 11, finally enters the cavity 5 and is injected and molded to form a pin a plastic part through the feeding channel 611, the arc-shaped channel 6114, the transverse channel 6113, the flaring section 6115, the inlet 41 and the outlet 42 in sequence, after the injection molding is completed, the movable mold 2 and the fixed mold 1 are separated from each other, the feeding sleeve 11 and the feeding block 61 are separated from each other, and the ejector pin 13 can eject waste materials in the flow channel 4 out and demold.
Example three: the difference from the second embodiment is that:
referring to fig. 7, a step surface 14 is arranged on the feeding block 61, an annular protrusion 15 is arranged on the step surface 14, an annular groove 16 is arranged at the end of the feeding sleeve 11, and the annular protrusion 15 is embedded in the annular groove 16.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (8)
1. The utility model provides a feed inlet structure, includes movable mould (2), be equipped with profiled sheeting (3) on movable mould (2), be equipped with runner (4), more than two die cavity (5) that are used for injection moulding round pin axle (a) working of plastics on profiled sheeting (3), runner (4) are including entry (41), export (42) dock in die cavity (5), characterized by:
the feeding device is characterized in that a feeding piece (6) is arranged at the inlet (41), the feeding piece (6) comprises a feeding block (61), the feeding block (61) is installed on the forming plate (3), a feeding channel (611) is arranged on the feeding block (61), the feeding channel (611) comprises a vertical channel (6112) and a transverse channel (6113), the vertical channel (6112) is perpendicular to the transverse channel (6113), an arc-shaped channel (6114) is arranged between the vertical channel (6112) and the transverse channel (6113), the transverse channel (6113) is in butt joint with the inlet (41), and a flaring section (6115) is arranged at the position, close to the inlet (41), of the transverse channel (6113).
2. The feedwell structure of claim 1, wherein: be equipped with mounting groove (7) on profiled sheeting (3), be equipped with flat groove face (8) on the cell wall of mounting groove (7), the side of feed block (61) is equipped with flat charge level (9), feed block (61) install in mounting groove (7), flat charge level (9) with the mutual plane cooperation of flat groove face (8), profiled sheeting (3) with link to each other through connecting bolt (10) between feed block (61).
3. The feedwell structure of claim 2, wherein: the connecting bolt (10) penetrates through the flat groove surface (8) and is in threaded connection with the flat material surface (9).
4. The utility model provides a round pin axle working of plastics injection mold, characterized by: comprising a feedwell configuration according to any of claims 1 to 3.
5. The injection mold for plastic pin elements of claim 4, wherein: the fixed die is characterized by further comprising a fixed die (1), wherein a feeding sleeve (11) is arranged on the fixed die (1);
the end part of the feeding block (61) close to the vertical channel (6112) is a sleeve joint end (12), and the feeding sleeve (11) is sleeved on the sleeve joint end (12).
6. The injection mold for plastic pin elements of claim 5, wherein: the diameter of an inner sleeve opening of the feeding sleeve (11) is larger than that of a channel opening of the vertical channel (6112).
7. The injection mold for plastic pin elements of claim 4, wherein: and a thimble (13) is arranged in the movable die (2), and the thimble (13) penetrates through the forming plate (3) and enters the feeding channel (611).
8. The injection mold for plastic pin elements of claim 5, wherein: be equipped with step face (14) on feeding block (61), be equipped with annular arch (15) on step face (14), feeding cover (11) tip is equipped with annular groove (16), annular arch (15) inlay and locate in annular groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221747459.4U CN217704504U (en) | 2022-07-06 | 2022-07-06 | Round pin axle working of plastics injection mold and feed inlet structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221747459.4U CN217704504U (en) | 2022-07-06 | 2022-07-06 | Round pin axle working of plastics injection mold and feed inlet structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217704504U true CN217704504U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221747459.4U Active CN217704504U (en) | 2022-07-06 | 2022-07-06 | Round pin axle working of plastics injection mold and feed inlet structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217704504U (en) |
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2022
- 2022-07-06 CN CN202221747459.4U patent/CN217704504U/en active Active
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