CN218749080U - Submarine gate insert and mold - Google Patents

Abstract

The application discloses a submarine gate insert, which comprises a body and a split body; the body is provided with a mold cavity and a first flow passage, the mold cavity is used for molding an injection molding piece, one end of the first flow passage communicated with the mold cavity is a pouring gate, and the first flow passage is communicated with the mold cavity through the pouring gate; the components of a whole that can function independently detachably connect on the body, be equipped with the second runner on the components of a whole that can function independently, when the components of a whole that can function independently were installed in the body, the one end of second runner and the one end intercommunication that runner was kept away from to first runner, the other end of second runner is for advancing gluey mouth, advances gluey mouth and is used for advancing gluey, and first runner and the combination of second runner constitute gluey way. The submarine gate insert solves the problem that the gate part in the integral rubber channel cannot be polished, so that the processing quality of an injection molding part is improved. The application also provides a mould comprising the submarine gate insert.

Description

Submarine gate insert and mold

Technical Field

The application relates to the technical field of runner processing, in particular to a submarine gate insert and a mold comprising the submarine gate insert.

Background

When some injection molding parts with smaller size and higher surface quality requirement are processed, the glue is generally fed in a submarine gate mode, namely, a gate part is usually placed on a rib or a column which is not visible on the inner surface, the side surface or the outer surface of the injection molding part in a tunnel mode. At present, when a runner of a submarine gate is machined, an operator firstly directly machines the runner and the gate in an insert in an electric spark machining mode, and then polishes the runner and the gate. However, the runner is long, and the polishing tool is difficult to extend into the part inside the runner and the pouring gate, so that the part inside the runner and the pouring gate is difficult to polish, cold materials are easy to remain in the runner, and when the injection molding is carried out again, the cold materials can enter the mold cavity, and the processing quality of the injection molding part is further influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a submarine gate insert including a submarine gate insert mold, so that an operator can polish a gate portion to improve the quality of injection molding.

The embodiment of the application provides a submarine gate insert, which comprises a body and a split body; the injection molding machine comprises a body, wherein the body is provided with a mold cavity and a first flow passage, the mold cavity is used for molding an injection molding piece, one end of the first flow passage communicated with the mold cavity is a sprue, and the first flow passage is communicated with the mold cavity through the sprue; the split body is detachably connected to the body, a second flow channel is arranged on the split body, when the split body is arranged on the body, one end of the second flow channel is communicated with one end, far away from the pouring gate, of the first flow channel, the other end of the second flow channel is a glue inlet, the glue inlet is used for feeding glue, and the first flow channel and the second flow channel are combined to form a glue channel.

Above-mentioned sub is gone into to formula of hiding runner through dividing into first runner and second runner with the runner of gluing for the longer runner of length is separated for the shorter first runner of length and second runner, because the length of first runner is shorter, makes the operating personnel can carry out polishing treatment to first runner and runner position, reduces the roughness of first runner and runner, thereby has solved in integral runner, the inside and the unable problem of polishing in runner position of gluing. Because the roughness at first runner and runner position reduces for between cold burden and the first runner, the frictional force between cold burden and the runner reduces, thereby cleaing away the cold burden in-process, first runner and runner can not produce the phenomenon of scraping to the cold burden, consequently the cold burden just is difficult for staying in first runner or runner department, and then has avoided taking place the condition that the cold burden got into the die cavity when moulding plastics, has improved injection molding processingquality.

In some embodiments, the cross-sectional area of the runner gradually decreases in a direction from the glue inlet to the gate.

In some embodiments, the glue track is curvilinear in shape.

In some embodiments, a central connecting line of the two ends of the first flow channel intersects with a normal direction of the bottom surface of the body.

In some embodiments, the second flow path is curvilinear in shape.

In some embodiments, the body is provided with a positioning groove, one end of the first flow channel, which is far away from the gate, is arranged at the bottom of the positioning groove, the positioning groove is used for positioning the split body, and when the split body is inserted into the body, the first flow channel is communicated with the second flow channel.

In some embodiments, the split body is formed by assembling a first split body and a second split body, a first groove and a second groove are respectively arranged on the opposite surfaces of the first split body and the second split body, and the first groove and the second groove form the second flow passage.

In some embodiments, the number of the first runners is plural, the plurality of first runners are arranged around the periphery of the mold cavity and are uniformly arranged, the number of the split bodies is the same as that of the first runners, the split bodies are arranged on the body and are in one-to-one correspondence with the plurality of first runners, and the plurality of second runners in the split bodies are communicated with the corresponding first runners.

In some embodiments, the inner surfaces of the first and second flow passages are provided with a wear resistant layer.

Embodiments of the present application also provide a mold including the submarine gate insert as described above.

Above-mentioned mould is through adopting above-mentioned formula runner of hiding to go into son, is favorable to avoiding appearing the condition that cold burden gets into the die cavity to injection molding processingquality has been improved.

Drawings

Fig. 1 is a schematic perspective view of a submarine gate insert according to some embodiments of the present disclosure.

Fig. 2 is an exploded view of the submarine gate insert of fig. 1.

Fig. 3 is a schematic cross-sectional view of the submarine gate insert shown in fig. 1, taken along line III-III.

Fig. 4 is a perspective view of the first and second divided bodies.

Description of the main elements

Submarine gate insert 100

Body 10

Die cavity 11

First flow channel 12

Gate 13

Positioning groove 14

Top surface 15

Bottom surface 16

Split 20

First component 21

First recess 211

Screw hole 212

Second section 22

Second groove 221

Second flow passage 30

Glue inlet 31

Rubber track 40

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, it is to be noted that the meaning of "a plurality" is two or more unless specifically defined otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; they may be mechanically coupled, electrically coupled, or in communication with each other, directly coupled, or indirectly coupled through intervening media, in which case they may be interconnected, or in which case they may be in an interconnecting relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, some embodiments of the present application provide a submarine gate insert 100. The submarine gate insert 100 of the present embodiment is used for molding an injection molded part, specifically, the injection molded part is a pen cap, and in other embodiments, the injection molded part may be other plastic products such as a pen barrel.

Referring to fig. 2 and 3, the submarine gate insert 100 includes a body 10 and a split body 20. The body 10 is provided with a mold cavity 11 and a first runner 12, the mold cavity 11 is used for molding an injection molding piece, the first runner 12 is communicated with the mold cavity 11, a sprue 13 is arranged at one end of the first runner 12 communicated with the mold cavity 11, and the rubber material flows into the first runner 12 and enters the mold cavity 11 through the sprue 13.

The split body 20 is detachably connected to the body 10, and the split body 20 may be directly embedded in the body 10 or may be fixed to the body 10 by bolts. The split body 20 is provided with a second flow passage 30, one end of the second flow passage 30 is communicated with the first flow passage 12, the other end of the second flow passage 30 is provided with a glue inlet 31, the glue inlet 31 is positioned at one side of the split body 20 and faces the top surface 15 of the body 10, and the first flow passage 12 and the second flow passage 30 are combined to form a glue passage 40. During the molding of the injection molded part, the glue flows from the glue inlet 31 into the glue channel 40 and through the gate 13 into the mold cavity 11.

So, because in integral runner 40, the position that is closer to runner 13 more, the degree of depth is darker, the polishing tool is difficult to stretch into more, through split into the first runner 12 and the second runner 30 that length is shorter with the longer runner 40 of length, thereby make the operating personnel can carry out polishing treatment to first runner 12 and runner 13, reduce the surface roughness of first runner 12 and runner 13 department, the surface roughness when first runner 12 and runner 13 department is less, the more difficult cold burden that remains in first runner 12 and runner 13 department, in moulding plastics next time, avoid appearing the condition that the cold burden got into die cavity 11, and then improved injection molding processingquality.

Referring to fig. 2 and 3, in some embodiments, the cross-sectional area of the runner 40 gradually decreases from the glue inlet 31 to the gate 13. In this manner, by gradually decreasing the cross-sectional area of the glue track 40, the flow rate of glue within the glue track 40 is advantageously increased, allowing the glue to quickly fill the mold cavity 11.

Referring to fig. 3, the gate insert 100 of the present embodiment is mainly used in a three-plate mold, and combines with a formed workpiece structure, and the runner 40 is curved, and in other embodiments, the runner may be a slant line.

Referring to fig. 3, in some embodiments, a center line of two ends of the first flow channel 12 intersects with a normal direction of the bottom surface 16 of the body 10, such that an extending direction of the first flow channel 12 is inclined to a mold releasing direction of the injection molded part, and the second flow channel 30 is curved. In this embodiment, after the injection molding of the injection molding part is completed, the injection molding part is separated from the mold cavity 11 along the direction perpendicular to the top surface 15, and at this time, the inner wall of the first flow channel 12 prevents the glue in the first flow channel 12 from moving along with the injection molding part, and along with the separation of the injection molding part from the mold cavity 11, the excess glue is retained in the first flow channel 12 during the injection molding process, so that the connection part between the glue in the first flow channel 12 and the injection molding part is cut off.

When the glue channel 40 is split into the first flow channel 12 and the second flow channel 30, the second flow channel 30 is curved, the processing difficulty of the second flow channel 30 is greater than that of the first flow channel 12, and the part which is difficult to process is designed on the second flow channel 30, so that the processing difficulty of the first flow channel 12 can be reduced, and the processing difficulty of the whole insert can be reduced.

Referring to fig. 2, in some embodiments, a rectangular positioning groove 14 is formed in the body 10, the positioning groove 14 is disposed on a side surface of the body 10, the size of the positioning groove 14 is matched with the size of the split body 20, when the split body 20 is inserted into the positioning groove 14, four groove walls of the positioning groove 14 are respectively attached to four side surfaces of the split body 20 one by one, and the groove walls of the positioning groove 14 limit the movement of the split body 20 in the positioning groove 14, so that the positioning groove 14 positions the split body 20; because the split body 20 is directly inserted and matched with the body 10, the split body 20 is very convenient to mount and dismount. In addition, the sub-body 20 is provided with a screw hole 212, the screw hole 212 is used for inserting a screw, and the sub-body 20 is fixed to the main body 10 by the screw.

Referring to fig. 2 and 4, in some embodiments, the split body 20 is formed by assembling a first split body 21 and a second split body 22, wherein a first groove 211 and a second groove 221 are respectively formed on opposite sides of the first split body 21 and the second split body 22, and when the first split body 21 and the second split body 22 are assembled together, the first groove 211 and the second groove 221 form the second flow channel 30. In this way, by arranging the split body 20 into an assembled structure, the first groove 211 and the second groove 221 to be processed are respectively exposed on the outer surfaces of the first split body 21 and the second split body 22, so that an operator can conveniently process the first groove 211 and the second groove 221, and the operator can also conveniently measure whether the sizes of the first groove 211 and the second groove 221 are processed in place, thereby reducing the processing difficulty of the second flow channel 30.

Referring to fig. 2 and 3, in some embodiments, the body 10 is provided with a plurality of first flow channels 12, the plurality of first flow channels 12 are uniformly arranged around the mold cavity 11, the number of the split bodies 20 is multiple, the plurality of split bodies 20 respectively correspond to the plurality of first flow channels 12 one to one, and the second flow channels 30 in the plurality of split bodies 20 are communicated with the corresponding first flow channels 12. In this embodiment, the number of the first flow passages 12 is two, two first flow passages 12 are symmetrically disposed on two sides of the mold cavity 11, the number of the split bodies 20 is two, and the second flow passages 30 in the two split bodies 20 are respectively in one-to-one correspondence with and communicate with the two first flow passages 12. So, through setting up two gluey ways 40, be favorable to improving the volume of advancing in die cavity 11 for die cavity 11 is filled fast.

Referring to fig. 3, in some embodiments, the inner surfaces of the first flow channel 12 and the second flow channel 30 are provided with wear resistant layers, which can reduce negative problems such as wear and oxidation during production, and can make the surfaces of the first flow channel 12 and the second flow channel 30 smoother. Because the split body 20 and the body 10 are processed separately, when the split body 20 is assembled on the body 10, a small gap is generated on a contact surface of the split body 20 and the body 10 due to processing errors, and the wear-resistant layer is coated on the inner surfaces of the first flow channel 12 and the second flow channel 30, so that the gap between the body 10 and the split body 20 can be filled, the body 10 and the split body 20 can be well attached, and the phenomenon that residual glue is generated in the gap in the injection molding process can be avoided.

Some embodiments provide a submarine gate insert 100 that works roughly as follows:

the whole insert is designed into a structure that the body 10 and the split body 20 are mutually assembled, the rubber channel 40 is divided into a first flow channel 12 and a second flow channel 30, the first flow channel 12 is directly processed on the body 10, and the second flow channel 30 is processed on the split body 20. The split body 20 is formed by assembling a first split body 21 and a second split body 22, a first groove 211 and a second groove 221 are respectively processed on the first split body 21 and the second split body 22, and the second flow passage 30 is formed by assembling the first groove 211 and the second groove 221.

After the first flow channel 12 and the second flow channel 30 are processed, the worker polishes the surfaces of the first flow channel 12 and the second flow channel 30, respectively, and finally coats a wear-resistant layer on the surfaces of the first flow channel 12 and the second flow channel 30.

The utility model provides a son 100 is gone into to latent formula runner, through the first runner 12 and the second runner 30 that length is shorter with the longer runner 40 split of length, make the operation personnel can carry out polishing treatment to first runner 12 and runner 13, reduce the roughness of first runner 12 and runner 13 department, thereby solved in integral runner 40, the problem of the unable polishing in the inside and 13 positions in runner 40, and then be favorable to avoiding appearing the condition that the cold charge got into die cavity 11, the injection molding piece processingquality has been improved. By splitting the split body 20 into the first split body 21 and the second split body 22 and processing the first groove 211 and the second groove 221 on the first split body 21 and the second split body 22, since the first groove 211 and the second groove 221 to be processed are respectively exposed on the outer surfaces of the first split body 21 and the second split body 22, an operator can conveniently process the first groove 211 and the second groove 221 and can also conveniently measure whether the sizes of the first groove 211 and the second groove 221 are processed in place, thereby reducing the processing difficulty of the second flow channel 30.

The present embodiment also provides a mold (not shown) including a submarine gate insert 100 as described above. By adopting the submarine gate insert 100, the situation that cold materials enter the die cavity 11 is avoided, and the processing quality of injection molding parts is improved.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims (10)

1. A submarine gate insert, comprising:

the injection molding machine comprises a body, wherein a mold cavity and a first flow passage are arranged on the body, the mold cavity is used for molding an injection molding piece, one end of the first flow passage communicated with the mold cavity is a pouring gate, and the first flow passage is communicated with the mold cavity through the pouring gate;

the split body is detachably connected to the body, a second flow channel is arranged on the split body, when the split body is arranged on the body, one end of the second flow channel is communicated with one end, far away from the pouring gate, of the first flow channel, the other end of the second flow channel is a glue inlet, the glue inlet is used for feeding glue, and the first flow channel and the second flow channel are combined to form a glue channel.

2. The submarine gate insert according to claim 1,

the cross-sectional area of the glue channel is gradually reduced along the direction from the glue inlet to the pouring gate.

3. The submarine gate insert according to claim 1,

the rubber channel is in a curve shape.

4. The submarine gate insert according to claim 1,

the central connecting line of the two ends of the first flow channel is intersected with the normal direction of the bottom surface of the body.

5. The submarine gate insert according to claim 1,

the second flow passage is in a curve shape.

6. The submarine gate insert according to claim 1,

the body is provided with a positioning groove, one end of the first flow channel, which is far away from the pouring gate, is arranged at the bottom of the positioning groove, the positioning groove is used for positioning the split body, and when the split body is inserted into the body, the first flow channel is communicated with the second flow channel.

7. The submarine gate insert according to claim 1,

the split body is formed by splicing a first split body and a second split body, a first groove and a second groove are respectively arranged on the opposite surfaces of the first split body and the second split body, and the first groove and the second groove form a second flow channel.

8. The submarine gate insert according to claim 1,

the quantity of first runner is a plurality of, and is a plurality of first runner is around setting up in week side of die cavity just is even setting up, the quantity of components of a whole that can function independently with the quantity of first runner is the same, and is a plurality of the components of a whole that can function independently set up in on the body, and with a plurality of first runner one-to-one, it is a plurality of in the component the second runner with correspond first runner intercommunication.

9. The submarine gate insert according to claim 1,

and the inner surfaces of the first flow passage and the second flow passage are provided with wear-resistant layers.

10. A mould comprising a submarine gate insert according to any of claims 1 to 9.

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