CN220146556U - Improve mould structure of injection molding product welding line - Google Patents
Improve mould structure of injection molding product welding line Download PDFInfo
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- CN220146556U CN220146556U CN202321457150.6U CN202321457150U CN220146556U CN 220146556 U CN220146556 U CN 220146556U CN 202321457150 U CN202321457150 U CN 202321457150U CN 220146556 U CN220146556 U CN 220146556U
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 title abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a die structure for improving the welding line of an injection product, which comprises a movable die assembly, a fixed die assembly, a push rod and a buffer assembly, wherein the movable die assembly is connected with the lower part of the fixed die assembly, and the push rod and the buffer assembly are arranged below the movable die assembly; the fixed die assembly comprises a top plate, an upper die holder, a male die, a panel and a splitter plate; the movable die assembly comprises a lower die holder, a female die and a bottom plate; the buffer component comprises a reset spring, a guide sleeve and a guide pillar; the lower surface of the upper die holder is connected with the lower die holder; the problem that the fusion line is generated at the fusion position due to the loss of heat of the material head is solved, and in order to solve the problem, the heating pipes are arranged on the periphery of the female die, so that the problem that the fusion line is generated on the product due to the loss of a large amount of heat when injection molding raw materials enter the male die and the female die is solved, and the service life of the die is prolonged.
Description
Technical Field
The utility model relates to the technical development field of mold structures, in particular to a mold structure for improving a welding line of an injection molding product.
Background
The injection molding mode is suitable for mass production, has high production efficiency and can save processing procedures, so that the injection molding mode is widely applied to the production and processing of various products. In real life, the application of plastic parts is also wider and wider, and meanwhile, the requirement on the plastic parts is also higher and higher, the injection molding is a processing method used in mass production of parts with complex shapes, specifically, the heated and melted plastic is injected into a mold cavity by an injection molding machine under high pressure, and after cooling and solidification, a formed product is obtained, and the injection molding mold generally comprises an upper mold, a lower mold, an upper mold core arranged on the upper mold, a lower mold core arranged on the lower mold core, and mold clamping/demolding of the upper mold core and the lower mold core is matched to complete injection molding.
However, in the injection molding process of the existing injection mold structure, because the melting line is generated at the fusion position due to the loss of heat of the stub bar, a layer of melting line is formed on the surface layer due to the fact that the temperature of the mold is lower than that of the melt, the possibility of cracking or deformation of the melting line generated in the processing process is higher when the part is used for a long time, and the service life of the mold is reduced.
Disclosure of Invention
In view of the shortcomings in the art described above, the present utility model provides a mold structure that improves the weld line of injection molded products.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the die structure for improving the welding line of the injection product comprises a movable die assembly, a fixed die assembly, a push rod and a buffer assembly, wherein the movable die assembly is connected with the lower part of the fixed die assembly, and the push rod and the buffer assembly are arranged below the movable die assembly;
the fixed die assembly comprises a top plate, an upper die holder, a male die, a panel and a splitter plate; the movable die assembly comprises a lower die holder, a female die and a bottom plate; the buffer component comprises a reset spring, a guide sleeve and a guide pillar; the lower surface of the upper die holder is connected with the lower die holder; the upper surface of the panel is connected with the top plate; the upper surface of the flow dividing plate is connected with the panel; the upper surface of the panel is connected with the top plate, and the guide sleeve and the guide post are respectively arranged between the movable die assembly and the fixed die assembly; the bottom of the lower die holder is attached to the reset spring; the male die is arranged at the bottom of the upper die holder; the female die is arranged in the lower die holder.
As further illustration, a pouring gate is formed in the surface of the top plate, a pouring sleeve is arranged at one end of the pouring gate, the pouring gate penetrates through one end of the top plate and one end of the panel respectively, and one end of the pouring gate is connected with the pouring sleeve.
As further illustration, a plurality of backup pads are installed to the upper surface of bottom plate, the one end of the lower surface of die holder with the backup pad is connected, the diaphragm is installed at the top of bottom plate, reset spring locates the upper surface of diaphragm, reset spring is located the die holder with between the diaphragm.
As a further illustration, a splitter box is arranged in the splitter plate, and the splitter plate is connected with the output end of the pouring sleeve; the lower surface of the splitter plate is connected with the upper die holder.
As a further explanation, the side surfaces of the female die are symmetrically provided with heating pipes and radiating grooves; the heating pipe is arranged on one side of the female die, and the heat dissipation groove is arranged on the inner wall of the female die.
As a further illustration, the guide sleeve and the guide post are respectively connected with the lower die holder, the upper die holder, the splitter plate, the panel and the top plate.
As a further illustration, the ejector pin is located between the upper die holder and the lower die holder; the upper die holder is consistent with the splitter plate in size.
In summary, the utility model has the following beneficial effects: according to the die structure for improving the welding line of the injection product, when the movable die assembly and the fixed die assembly are subjected to injection molding through the pouring sleeve, the welding line is generated at the fusion position due to heat loss of the material head, and in order to solve the problem, the heating pipes are arranged on the periphery of the female die, so that the problem of welding line generation of the product due to the fact that a large amount of heat is prevented when injection molding raw materials enter the male die and the female die is solved, and meanwhile, the service life of the die is prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;
FIG. 3 is a schematic view of the structure of the splitter plate of the present utility model;
FIG. 4 is a schematic cross-sectional view of the present utility model;
fig. 5 is a schematic view of a part of the structure of the male die of the present utility model.
Reference numerals in the drawings: 10-pouring gate, 11-pouring sleeve, 12-ejector rod, 13-supporting plate, 14-transverse plate, 15-heat dissipation groove, 16-heating pipe, 20-top plate, 21-panel, 22-shunt groove, 23-shunt plate, 24-upper die holder, 25-male die, 30-lower die holder, 31-bottom plate, 32-female die, 40-guide post, 41-guide sleeve and 42-reset spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
1-5, the device comprises a movable die assembly, a fixed die assembly, a push rod 12 and a buffer assembly, wherein the movable die assembly is connected with the lower part of the fixed die assembly, and the push rod 12 and the buffer assembly are arranged below the movable die assembly;
the fixed die assembly comprises a top plate 20, an upper die holder 24, a male die 25, a panel 21 and a splitter plate 23; the movable die assembly comprises a lower die holder 30, a female die 32 and a bottom plate 31; the buffer assembly comprises a return spring 42, a guide sleeve 41 and a guide post 40; the lower surface of the upper die holder 24 is connected with the lower die holder 30; the upper surface of the panel 21 is connected to the top plate 20; the upper surface of the diverter plate 23 is connected to the faceplate 21; the upper surface of the panel 21 is connected with the top plate 20, and the guide sleeve 41 and the guide post 40 are respectively arranged between the movable die assembly and the fixed die assembly; the bottom of the lower die holder 30 is attached to the return spring 42; the male die 25 is arranged at the bottom of the upper die holder 24; the female die 32 is arranged in the lower die holder 30; after the injection molding is completed through the mold closing of the movable mold component and the fixed mold component, the fixed mold component and the movable mold component can be assisted to open through the guide sleeve 41 and the guide post 40; during injection molding, raw materials flow into the pouring sleeve 11 through the pouring opening 10, meanwhile, the pouring sleeve 11 flows into the flow dividing plate 23, the flow dividing plate 23 flows into the flow dividing groove 22, and the injection molded raw materials flow between the upper die holder 24 and the lower die holder 30 through the flow dividing groove 22 respectively for injection molding; the male die 25 arranged on the lower surface of the upper die holder 24 and the female die 32 arranged on the inner side of the lower die holder 30 are in clearance fit to finish injection molding, when injection molding is finished, the lower die holder 30 is not moved, after the upper die holder 24 slowly moves upwards to a set height range, the ejector rod 12 ejects a product after injection molding is finished, and an operator can conveniently take out the product after injection molding; by the arrangement of the return spring 42, when the upper die holder 24 and the lower die holder 30 are matched, the lower die holder 30 applies pressure to the return spring 42 so as to achieve the effects of buffering and resetting; the heating pipe 16 is arranged so as to prevent excessive heat loss during injection, thereby leading to welding lines of products and affecting the service life of the die; through the heat dissipation groove 15 that sets up, produce too big heat accessible heat dissipation groove 15 to the product rapid cooling's effect after terrace die 25 and die 32 accomplish the injection molding, improved the efficiency of production.
A pouring opening 10 is formed in the surface of the top plate 20, a pouring sleeve 11 is arranged at one end of the pouring opening 10, the pouring opening 10 penetrates through one end of the top plate 20 and one end of the panel 21 respectively, and one end of the pouring opening 10 is connected with the pouring sleeve 11; through the arrangement of the sprue gate 10, raw materials are conveniently added into a die through the sprue gate 10; through the connection of sprue gate 10 and pouring jacket 11, the pouring jacket 11 of setting is convenient for carry the raw materials to the mould structure that needs the injection molding in the middle of accomplishing the injection molding.
The upper surface of the bottom plate 31 is provided with a plurality of support plates 13, one end of the lower surface of the lower die holder 30 is connected with the support plates 13, the top of the bottom plate 31 is provided with a transverse plate 14, the return spring 42 is arranged on the upper surface of the transverse plate 14, and the return spring 42 is positioned between the lower die holder 30 and the transverse plate 14; the supporting plate 13 is used for supporting the parts from top to bottom, so that the overall stability is improved; when the lower die holder 30 is impacted excessively by the arrangement of the return spring 42, the action of the return spring 42 on buffering the lower die holder 30 can be utilized, and after the operation of the lower die holder 30 is completed, the return spring 42 returns the auxiliary lower die holder 30 to the original position, so that the action of resetting and buffering the lower die holder 30 is achieved.
A flow dividing groove 22 is formed in the flow dividing plate 23, and the flow dividing plate 23 is connected with the output end of the pouring sleeve 11; the lower surface of the splitter plate 23 is connected with the upper die holder 24; when the injection molding raw material flows into the flow dividing plate 23 through the arrangement of the flow dividing plate 23, the flow dividing plate 23 passes through the flow dividing grooves 22 arranged in the flow dividing plate 23, and all the raw material flows into the space between the upper die holder 24 and the lower die holder 30 through the flow dividing grooves 22 to complete injection molding.
The side surface of the female die 32 is symmetrically provided with a heating pipe 16 and a radiating groove 15; the heating pipe 16 is disposed at one side of the female die 32, and the heat dissipation groove 15 is disposed at an inner wall of the female die 32. The problem of the welding line during injection molding of the product is solved by arranging the heating pipe 16 due to the formation of the welding line caused by overlarge temperature loss, which is beneficial to preventing the welding line from being generated due to uneven heating during injection molding; by arranging the heat dissipation groove 15, when the temperature of a product molded by the upper male die 25 and the female die 32 is too high, the excessive heat generated by the male die 25 and the female die 32 can be discharged out of the die through the heat dissipation groove 15 and cooled.
The guide sleeve 41 and the guide post 40 are respectively connected with the lower die holder 30, the upper die holder 24, the splitter plate 23, the panel 21 and the top plate 20; through the guide sleeve 41 and the guide post 40, the die assembly device is used for buffering and opening the die after the die assembly of the upper die holder 24 and the lower die holder 30, and when the upper die holder 24 and the lower die holder 30 are moved, the guide sleeve 41 and the guide post 40 can drive the upper die holder 24 and the lower die holder 30 to be separated, so that an operator can take out a product after injection molding and observe the quality of the product conveniently.
The ejector rod 12 is positioned between the upper die holder 24 and the lower die holder 30; the upper die holder 24 is in the same size as the splitter plate 23; through the setting of ejector rod 12, upper die base 24 and die holder 30 accessible ejector rod 12 are ejecting the product after the injection molding is accomplished, are convenient for the operating personnel take out the product.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an improve mould structure of injection molding fusing line which characterized in that: the device comprises a movable die assembly, a fixed die assembly, a push rod and a buffer assembly, wherein the movable die assembly is connected with the lower part of the fixed die assembly, and the push rod and the buffer assembly are arranged below the movable die assembly;
the fixed die assembly comprises a top plate, an upper die holder, a male die, a panel and a splitter plate; the movable die assembly comprises a lower die holder, a female die and a bottom plate; the buffer component comprises a reset spring, a guide sleeve and a guide pillar; the lower surface of the upper die holder is connected with the lower die holder; the upper surface of the panel is connected with the top plate; the upper surface of the flow dividing plate is connected with the panel; the upper surface of the panel is connected with the top plate, and the guide sleeve and the guide post are respectively arranged between the movable die assembly and the fixed die assembly; the bottom of the lower die holder is attached to the reset spring; the male die is arranged at the bottom of the upper die holder; the female die is arranged in the lower die holder.
2. The mold structure for improving the weld line of an injection molded product according to claim 1, wherein: the surface of roof has seted up the sprue gate, and the one end of sprue gate is equipped with the pouring jacket, the sprue gate run through respectively in roof and panel one end, the one end and the pouring jacket of sprue gate are connected.
3. A mold structure for improving a weld line of an injection molded product according to any one of claims 1 to 2, characterized in that: the upper surface mounting of bottom plate has a plurality of backup pad, the one end of the lower surface of die holder with the backup pad is connected, the diaphragm is installed at the top of bottom plate, reset spring locates the upper surface of diaphragm, reset spring is located the die holder with between the diaphragm.
4. The mold structure for improving the weld line of an injection molded product according to claim 2, wherein: a flow dividing groove is formed in the flow dividing plate, and the flow dividing plate is connected with the output end of the pouring sleeve; the lower surface of the splitter plate is connected with the upper die holder.
5. The mold structure for improving the weld line of an injection molded product according to claim 1, wherein: the side surface of the female die is symmetrically provided with a heating pipe and a radiating groove; the heating pipe is arranged on one side of the female die, and the heat dissipation groove is arranged on the inner wall of the female die.
6. The mold structure for improving the weld line of an injection molded product according to claim 1, wherein: the guide sleeve and the guide post are respectively connected with the lower die holder, the upper die holder, the splitter plate, the panel and the top plate.
7. The mold structure for improving the weld line of an injection molded product according to claim 1, wherein: the ejector rod is positioned between the upper die holder and the lower die holder; the upper die holder is consistent with the splitter plate in size.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321457150.6U CN220146556U (en) | 2023-06-08 | 2023-06-08 | Improve mould structure of injection molding product welding line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321457150.6U CN220146556U (en) | 2023-06-08 | 2023-06-08 | Improve mould structure of injection molding product welding line |
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CN220146556U true CN220146556U (en) | 2023-12-08 |
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CN202321457150.6U Active CN220146556U (en) | 2023-06-08 | 2023-06-08 | Improve mould structure of injection molding product welding line |
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2023
- 2023-06-08 CN CN202321457150.6U patent/CN220146556U/en active Active
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