CN216804292U - Low-pressure casting die capable of avoiding ejection deformation - Google Patents
Low-pressure casting die capable of avoiding ejection deformation Download PDFInfo
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- CN216804292U CN216804292U CN202220065153.4U CN202220065153U CN216804292U CN 216804292 U CN216804292 U CN 216804292U CN 202220065153 U CN202220065153 U CN 202220065153U CN 216804292 U CN216804292 U CN 216804292U
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Abstract
The utility model relates to the technical field of injection mold manufacturing, and provides a low-pressure casting mold capable of avoiding ejection deformation, which comprises an upper mold and a lower mold, wherein the upper mold is abutted against the lower mold to form a first injection molding space, and the first injection molding space is used for molding a main body of a part; the first side die is abutted against the upper die and the lower die, the first side die, the upper die and the lower die form a second injection molding space together, and the second injection molding space is communicated with the first injection molding space; the injection molding mechanism is arranged on the lower die and used for injecting molten metal into the first injection molding space and the second injection molding space; the first sliding mechanism is arranged on the injection molding mechanism, the first side die is arranged at the ejection end of the first sliding mechanism, and the first sliding mechanism is used for providing a force for the first side die to be far away from or close to the upper die and the lower die; the ejection mechanism is arranged on the upper die in a sliding mode and used for ejecting the parts. Through above-mentioned technical scheme, the problem of the supporting legs footboard weight in the production truck driver's cabin among the prior art is big, production efficiency is low has been solved.
Description
Technical Field
The utility model relates to the technical field of injection mold manufacturing, in particular to a low-pressure casting mold capable of avoiding ejection deformation.
Background
The injection molding of the injection mold is widely applied to the automobile part manufacturing industry, and the product construction and molding processing in the modern manufacturing industry are all completed by using the mold.
Supporting legs footboard in the truck cab, the side has the abnormal-shaped structure that two sides supported the limit, and the side supports the limit and whole wall thickness is thinner, the part volume is great, still have more elongated muscle, if adopt injection moulding production, can meet a lot of problems, so when this part of prior art production, for guaranteeing the qualification rate, mainly adopt welding and stamping forming, the process is complicated, the processing degree of difficulty is big, inefficiency, and the material is iron material, total weight is big, can not realize the lightweight of truck.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low-pressure casting die capable of avoiding ejection deformation, and solves the problems that a supporting foot pedal in a production truck cab in the related technology is provided with a side supporting edge, the weight is large, and the production efficiency is low.
The technical scheme of the utility model is as follows:
a low pressure casting mold for injection molding parts having side support edges that avoids ejection distortion, comprising
The upper die is abutted against the lower die, the upper die and the lower die form a first injection molding space, the first injection molding space is used for molding the main body of the part,
a first side die which is abutted against the upper die and the lower die, a second injection space is formed by the first side die, the upper die and the lower die together, the second injection space is used for forming the first side supporting edge, the second injection space is communicated with the first injection space,
an injection molding mechanism arranged on the lower die and used for injecting molten metal into the first injection molding space and the second injection molding space,
the first sliding mechanism is arranged on the injection molding mechanism, the first side die is arranged at the ejection end of the first sliding mechanism, the first sliding mechanism is used for providing force for the first side die to be far away from or close to the upper die and the lower die,
and the ejection mechanism is arranged on the upper die in a sliding manner and is used for ejecting the part.
Further, the injection molding mechanism has two gates.
Further, the ejection mechanism comprises
A mounting seat which is arranged on the upper die in a sliding way,
the ejector piece is provided with a plurality of ejector pieces, all the ejector pieces are arranged on the mounting seat, and the ejector pieces penetrate through the upper die and are used for abutting against the parts.
Further, also comprises
A base arranged on the injection molding mechanism and provided with a chute,
the first side die is provided with a sliding block, and the ejection end of the first sliding mechanism drives the sliding block to be arranged in the sliding groove in a sliding mode.
The injection molding device further comprises injection molding channels, the two gates are communicated with the injection molding channels, the injection molding channels are communicated with the first injection molding space, a plurality of ejection points are formed in the injection molding channels, and the injection molding channels are also communicated with risers.
Further, still include two exhaust passage, all with the passageway intercommunication of moulding plastics, two exhaust passage's one end sets up respectively two the runner top, the other end and air intercommunication.
Further, also comprises
A second side die which is abutted against the upper die and the lower die, forms a third injection molding space with the upper die and the lower die, is communicated with the first injection molding space and is used for forming a second side supporting edge,
and the second sliding mechanism is arranged on the second side die and used for providing force for the second side die to be far away from or close to the upper die and the lower die.
The mold opening device further comprises a mold opening mechanism, one end of the mold opening mechanism is arranged on the base, the other end of the mold opening mechanism abuts against the upper mold, and the mold opening mechanism is used for opening the upper mold and the lower mold.
The working principle and the beneficial effects of the utility model are as follows:
in the utility model, in order to realize light-weight production of an automobile, an automobile supporting pedal is produced, the part is provided with a side supporting edge, the part is produced by adopting a mold injection molding mode, but when the part is injected, a person in the prior art is used to set an upper mold and a lower mold, the upper end and the lower end of the side supporting edge are respectively molded by the upper mold and the lower mold, but in the prior art, the side supporting edge is positioned in the upper mold and the lower mold, when the upper mold and the lower mold are opened, the side supporting edge is often deformed, when the upper mold and the lower mold are integrally removed, an ejection point is not well arranged, the side supporting edge is easy to be ejected at a position with a thinner wall thickness, and the side supporting edge is easy to deform during ejection. In order to further solve the problem, an upper die, a lower die, a first injection space, a first side die, a second injection space, a first sliding mechanism, an injection mechanism and an ejection mechanism are arranged, specifically, the upper die is abutted against the lower die, the upper die and the lower die jointly form the first injection space, the side surfaces of the upper die and the lower die are provided with the first side die, the upper die and the lower die jointly form the second injection space, the second injection space is used for forming a first side supporting edge, the second injection space and the first injection space are mutually communicated, the injection mechanism is arranged on the lower die and used for injecting molten metal into the first injection space and the second injection space, the molten metal is aluminum, the first sliding mechanism is arranged on the injection mechanism and used for applying force to the first side die through the first sliding mechanism so as to enable the first side die to be close to or far away from the upper die and the lower die, after the parts are injected and molded, the sliding mechanism gives the first side die a force which is far away from the upper die and the lower die, namely when the die is opened, the side die is firstly pulled open, the upper die and the lower die are opened, when the upper die and the lower die are opened, the shape of the side supporting edge cannot be influenced, so that a part falls off from the first side die, the ejection mechanism is arranged on the upper die, and the part is ejected from the upper die through the ejection mechanism after the die is opened, so that the part is demolded.
In this application, through the second space of moulding plastics, the shaping and the demolding of dysmorphism have been made things convenient for, the space interval is narrow can be so that fashioned part wall thickness is thinner, the molten metal that is used for simultaneously moulding plastics is aluminium matter, unsuitable direct ejecting mould, part through first slide mechanism with the dysmorphism breaks away from first side form, whole drawing of patterns after convenient, this application is through the design thought that has changed the mould, the significantly reduced causes because the reason of wall thickness and structure causes the condemned probability of part.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a gate and base structure according to the present invention;
FIG. 3 is a schematic diagram of the injection molding channel and riser structure of the present invention;
FIG. 4 is a schematic view of a side form structure according to the present invention;
FIG. 5 is a schematic view of a first injection molding space structure according to the present invention;
FIG. 6 is a schematic view of a second injection molding space according to the present invention;
FIG. 7 is a schematic view of a third injection molding space according to the present invention;
FIG. 8 is a schematic structural view of an ejection mechanism according to the present invention;
in the figure: 1. the injection molding machine comprises an upper die, a lower die, a first injection molding space, a first ejection mechanism, a second injection molding space, a first sliding mechanism, a sprue gate, a mounting seat, an ejector piece, a base, a sliding groove, a sliding block, a mounting seat, an ejector piece, a base, a mounting seat 13, a sliding groove, a sliding block 14, a sliding block 15, an injection molding channel, a riser, a vent channel 17, an exhaust channel 18, a second side die, a second sliding mechanism 19, a third injection molding space, a mold opening mechanism 21 and a mold unloading mechanism
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in FIGS. 1 to 8, the present embodiment proposes a low pressure casting mold for injection molding a part having a side support edge, which avoids the ejection deformation, comprising
An upper die 1 and a lower die 2, wherein the upper die 1 is abutted against the lower die 2, the upper die 1 and the lower die 2 form a first injection space 3, the first injection space 3 is used for molding a main body of a part,
a first side die 6 which is abutted against the upper die 1 and the lower die 2, a second injection space 7 is formed by the first side die 6, the upper die 1 and the lower die 2 together, the second injection space 7 is used for forming a first side supporting edge, the second injection space 7 is communicated with the first injection space 3,
an injection molding mechanism 5 arranged on the lower die 2 and used for injecting molten metal into the first injection molding space 3 and the second injection molding space 7,
a first sliding mechanism 8 arranged on the injection mechanism 5, the first side die 6 is arranged at the ejection end of the first sliding mechanism 8, the first sliding mechanism 8 is used for providing the force for the first side die 6 to get away from or close to the upper die 1 and the lower die 2,
and the ejection mechanism 4 is arranged on the upper die 1 in a sliding manner and is used for ejecting the parts.
In the embodiment, in order to realize light-weight production of an automobile, an automobile supporting pedal is produced, the part is provided with a side supporting edge, the part is produced by adopting a mold injection molding mode, but when the part is injected, an ejection point is not easy to set when the side supporting edge is ejected, the ejection point is easy to be ejected at a position with thinner wall thickness, and deformation is easy to occur when the part is ejected, in order to further solve the problem, an upper mold 1, a lower mold 2, a first injection space 3, a first side mold 6, a second injection space 7, a first sliding mechanism 8, an injection mechanism 5 and an ejection mechanism 4 are arranged, specifically, the upper mold 1 is abutted against the lower mold 2, the upper mold 1 and the lower mold 2 form the first injection space 3 together, the first side mold 6 is arranged on the side surface of the upper mold 1 and the lower mold 2, the first side mold 6, the upper mold 1 and the lower mold 2 form the second injection space 7 together, and the second injection space 7 is communicated with the first injection space 3, injection molding machine 5 sets up on lower mould 2 for to first injection molding space 3 and the second molten metal of moulding plastics of space 7, the molten metal is aluminium, first slide mechanism 8 sets up on injection molding machine 5, give first side form 6 power through first slide mechanism 8, be used for making first side form 6 be close to or keep away from last mould 1 and lower mould 2, after part injection moulding, the side of part is fixed through last mould 1 and lower mould 2, first slide mechanism 8 gives first side form 6 and keeps away from the power of last mould 1 and lower mould 2, cause the part to drop from first side form 6, simultaneously because the fixing of last mould 1 and lower mould 2, can effectually prevent that the part from taking place deformation when first side form 6 drawing of patterns, ejection mechanism 4 sets up on last mould 1, ejecting part from last mould 1 through ejection mechanism 4 after the die sinking, make the part drawing of patterns.
The second space 7 of moulding plastics is the dysmorphism structure, and the space interval is narrow so that fashioned part wall thickness is thinner, and the metal liquid that is used for moulding plastics simultaneously is aluminium system, is unsuitable directly ejecting mould, breaks away from first side mould 6 with the part of dysmorphism structure through last mould 1, lower mould 2 and first slide mechanism 8, and the whole drawing of patterns after convenient reduces and causes because the reason of wall thickness and structure and causes the condemned probability of part.
Further, the injection mechanism 5 has two gates 9.
Because the special-shaped structure of car support running-board in this embodiment, mostly the elongated rib, the wall thickness is thinner, the whole interval in the fashioned space of moulding plastics of mould is narrower, it causes cavity and bubble structure to have the probability when the liquid of moulding plastics lets in the space of moulding plastics, so that last fashioned part disability rate is higher, for improving the part yield, optimize the part quality, the present design is two runners 9, two runners 9 intercommunication spaces of moulding plastics, let in the liquid of moulding plastics for the space of moulding plastics simultaneously, end product quality improves, the cavity probability can reduce by a wide margin.
Further, the ejection mechanism 4 includes
A mounting seat 10 which is arranged on the upper die 1 in a sliding way,
the top piece 11 is provided with a plurality of top pieces, the top pieces are all arranged on the mounting seat 10, and the top pieces 11 penetrate through the upper die 1 and are used for abutting against the parts.
In order to better demould the molded part of the mold in the embodiment, the ejection mechanism 4 comprises a mounting seat 10 which is arranged on the upper mold 1 in a sliding manner, a plurality of ejecting pieces 11 are further arranged on the mounting seat 10, the ejecting pieces 11 penetrate through the upper mold 1, one end of each ejecting piece is abutted to the part, the ejecting pieces 11 are provided with small gaps when penetrating through the upper mold 1, the small gaps are communicated with the injection molding space, when the injection molding liquid is introduced into the injection molding space, the gas in the injection molding liquid and the gas in the injection molding space can be discharged from the small gaps, and bubbles or cavities in the finished part are reduced.
Further, also comprises
A base 12, which is arranged on the injection molding mechanism 5 and is provided with a sliding groove 13,
the first side die 6 is provided with a slide block 14, and the ejection end driving slide block 14 of the first sliding mechanism 8 is arranged in the sliding groove 13 in a sliding mode.
In order to enable the first side die 6 to better slide on the equipment in the embodiment, the sliding groove 13 is formed in the base 12, the first side die 6 is provided with the sliding block 14, the first side die 6 is arranged on the base 12 in a sliding mode through the sliding block 14, the first side die 6 is controlled to slide on the base 12 more stably through the ejection end of the first sliding mechanism 8, after a part is formed, the part can be smoothly demoulded through the sliding of the sliding block 14, and the formed part is not prone to deformation.
Further, still include the passageway 15 of moulding plastics, two runners 9 all communicate the passageway 15 of moulding plastics, and the passageway 15 of moulding plastics communicates first space 3 of moulding plastics, and the passageway 15 of moulding plastics forms a plurality of liftout point, and the passageway 15 of moulding plastics still communicates with rising head 16.
The supporting pedal plate formed by injection molding in the embodiment has a complex structure and a thin integral wall thickness, so that the supporting pedal plate is easy to deform and difficult to demould when being ejected by the ejection mechanism 4 after being molded, the stress point of the balance part is deduced through experimental verification, an injection molding channel 15 is arranged, the injection molding channel 15 is communicated with a first injection molding space 3 and a second injection molding space 7, a plurality of ejection points are formed beside the first injection molding space 3 and the second injection molding space 7 after injection molding, the injection molding channel 15 is also communicated with a dead head 16, the ejection points are positioned on the deduced stress point and set up ejection points for the ejection mechanism 4, so that the part is more stable in demolding, the final yield is improved, and the deformation caused by the complex structure with thinner wall thickness is not easy to occur, and simultaneously, the riser 16 is arranged to continuously supplement injection molding liquid in the injection molding space 3, so that the yield is further improved.
Further, still include two exhaust passage 17, all communicate with the passageway 15 of moulding plastics, two exhaust passage 17's one end sets up respectively in two runner 9 tops, and the other end and air intercommunication.
Because this grinding apparatus injects the liquid of moulding plastics through the high pressure from below to the top in this embodiment, there is not good exhaust mechanism when the liquid of moulding plastics of high pressure floods, cavity and the incomplete condition of shaping appear when making part shaping easily, now set up two exhaust passage 17, two exhaust passage 17 all communicate with the passageway 15 of moulding plastics, also communicate with first space 3 and the second space 7 of moulding plastics simultaneously, exhaust passage 17 set up respectively in the top of two runners 9, the other end and air intercommunication, it is favorable to the high pressure liquid of moulding plastics to gush when runner 9 top sets up exhaust passage 17, the gas outgoing in the space of moulding plastics, make fashioned part structure complete at last, the yield improves.
Further, also comprises
A second side die 18 which is abutted against the upper die 1 and the lower die 2, a third injection space 20 is formed by the second side die 18, the upper die 1 and the lower die 2, the third injection space 20 is communicated with the first injection space 3 and is used for forming a second side supporting edge,
and a second sliding mechanism 19 provided on the second side mold 18 for providing a force of the second side mold 18 away from or close to the upper mold 1 and the lower mold 2.
In the embodiment, when the supporting pedal plate is injected, the supporting pedal plate is also provided with a second side supporting edge, the second side supporting edge is provided with a mounting concave table, the upper die 1 and the lower die 2 are simply used and are not easy to be injected and molded, a second side die 18 is arranged at present, the second side die 18 is abutted to the upper die 1 and the lower die 2 to jointly form a third injection space 20, the third injection space 20 is communicated with the first injection space 3, a second sliding mechanism 19 is arranged on the second side die 18, the side edge of a part is fixed through the upper die 1 and the lower die 2, the second sliding mechanism 19 is used for providing the force for the second side die 18 to be close to or far away from the upper die 1 and the lower die 2, meanwhile, because the upper die 1 and the lower die 2 are fixed, the part can be effectively prevented from deforming when the first side die 6 is demoulded, the second side supporting edge is formed through the second side die 18 more conveniently, the efficiency is higher, and the yield can be greatly increased.
Further, the device also comprises a die opening mechanism 21, one end of which is arranged on the base 12, and the other end of which is abutted against the upper die 1, and is used for opening the upper die 1 and the lower die 2.
In order to make the mould better die sinking in this embodiment, set up mold opening mechanism 21 now, mold opening mechanism 21 one end sets up on base 12, and one end sets up on last mould 1, and mold opening mechanism 21 is used for providing the power that last mould 1 kept away from lower mould 2, and is more steady high-efficient when making the die sinking.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A low pressure casting mold for injection molding of parts having side support edges that avoids ejection distortion, comprising
The injection molding die comprises an upper die (1) and a lower die (2), wherein the upper die (1) is abutted against the lower die (2), the upper die (1) and the lower die (2) form a first injection molding space (3), the first injection molding space (3) is used for molding a main body of a part,
a first side die (6) which is abutted against the upper die (1) and the lower die (2), wherein the first side die (6), the upper die (1) and the lower die (2) jointly form a second injection molding space (7), the second injection molding space (7) is used for forming the first side supporting edge, and the second injection molding space (7) is communicated with the first injection molding space (3),
an injection molding mechanism (5) arranged on the lower die (2) and used for injecting molten metal into the first injection molding space (3) and the second injection molding space (7),
the first sliding mechanism (8) is arranged on the injection molding mechanism (5), the first side mold (6) is arranged at the ejection end of the first sliding mechanism (8), the first sliding mechanism (8) is used for providing the force of the first side mold (6) far away from or close to the upper mold (1) and the lower mold (2),
and the ejection mechanism (4) is arranged on the upper die (1) in a sliding manner and is used for ejecting the part.
2. The die for low pressure casting avoiding ejecting deformation according to claim 1, characterized in that the injection mechanism (5) has two gates (9).
3. The low-pressure casting die avoiding ejection deformation according to claim 1, wherein the ejection mechanism (4) comprises
A mounting seat (10) which is arranged on the upper die (1) in a sliding way,
the ejection piece (11) is provided with a plurality of parts and arranged on the mounting seat (10), and the ejection piece (11) penetrates through the upper die (1) and is used for abutting against the parts.
4. The low pressure casting mold for avoiding ejection distortion of claim 1, further comprising
A base (12) arranged on the injection molding mechanism (5) and provided with a sliding groove (13),
the first side die (6) is provided with a sliding block (14), and the ejection end of the first sliding mechanism (8) drives the sliding block (14) to be arranged in the sliding groove (13) in a sliding mode.
5. The low pressure casting mold for avoiding ejection deformation according to claim 2, further comprising an injection molding channel (15), wherein both of the gates (9) are communicated with the injection molding channel (15), the injection molding channel (15) is communicated with the first injection molding space (3), the injection molding channel (15) forms a plurality of ejection points, and the injection molding channel (15) is further communicated with a riser (16).
6. The low pressure casting mold for avoiding ejection deformation according to claim 5, further comprising two air exhaust passages (17) each communicating with the injection passage (15), one end of each of the two air exhaust passages (17) being disposed above the two gates (9), and the other end thereof being communicated with air.
7. The low pressure casting mold for avoiding ejection distortion of claim 1, further comprising
A second side die (18) which is abutted against the upper die (1) and the lower die (2), wherein the second side die (18) and the upper die (1) and the lower die (2) form a third injection molding space (20), the third injection molding space (20) is communicated with the first injection molding space (3) for forming a second side supporting edge,
and the second sliding mechanism (19) is arranged on the second side die (18) and is used for providing force for enabling the second side die (18) to be far away from or close to the upper die (1) and the lower die (2).
8. The low-pressure casting die capable of avoiding the ejection deformation according to claim 4, further comprising a die opening mechanism (21), one end of which is arranged on the base (12), and the other end of which abuts against the upper die (1) for opening the upper die (1) and the lower die (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220065153.4U CN216804292U (en) | 2022-01-11 | 2022-01-11 | Low-pressure casting die capable of avoiding ejection deformation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220065153.4U CN216804292U (en) | 2022-01-11 | 2022-01-11 | Low-pressure casting die capable of avoiding ejection deformation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118122996A (en) * | 2024-05-07 | 2024-06-04 | 象山同家模具制造有限公司 | Low-pressure casting mold |
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- 2022-01-11 CN CN202220065153.4U patent/CN216804292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118122996A (en) * | 2024-05-07 | 2024-06-04 | 象山同家模具制造有限公司 | Low-pressure casting mold |
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