CN108705726B - Injection mold with accessory implantation auxiliary component and injection molding method thereof - Google Patents

Injection mold with accessory implantation auxiliary component and injection molding method thereof Download PDF

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Publication number
CN108705726B
CN108705726B CN201810533224.7A CN201810533224A CN108705726B CN 108705726 B CN108705726 B CN 108705726B CN 201810533224 A CN201810533224 A CN 201810533224A CN 108705726 B CN108705726 B CN 108705726B
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China
Prior art keywords
sliding block
insert
guide
groove
accessory
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CN201810533224.7A
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Chinese (zh)
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CN108705726A (en
Inventor
罗云飞
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Kunshan Jiahua Automotive Electronic Technology Co ltd
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Kunshan Jiahua Automotive Electronic Technology Co ltd
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Priority to CN201810533224.7A priority Critical patent/CN108705726B/en
Publication of CN108705726A publication Critical patent/CN108705726A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065Positioning or centering articles in the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332Mountings or guides therefor; Drives therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C45/401Ejector pin constructions or mountings

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention provides an injection mold with accessory implantation auxiliary components, which comprises an upper template, a lower template, a plurality of ejector pins/mold cores and auxiliary components, wherein the auxiliary components comprise a positioning guide insert and a guide barrel. The positioning guide insert comprises a columnar body and a positioning guide part formed by one end of the columnar body, the guide sleeve comprises a cylindrical base part, an opening is formed at one end of the cylindrical base part, the guide sleeve is sleeved on the periphery of the positioning guide insert, the guide sleeve can axially move relative to the positioning guide insert, and a fitting can be implanted at a position between the positioning guide part of the positioning guide insert and the guide sleeve. Through addding the guide span, the special structural design of cooperation direction mold insert and guide span for the guide span can be along with thimble/mold core synchronous upward movement when ejecting final injection molding product, makes the position of implanting the accessory shift up and keep away from the dark chamber of injection mold, makes the implantation of accessory more simple and convenient accurate before injection molding.

Description

Injection mold with accessory implantation auxiliary component and injection molding method thereof
Technical Field
The invention relates to the technical field of injection molding, in particular to an injection mold with accessory implantation auxiliary components and an injection molding method thereof.
Background
The injection mold is a tool for producing plastic products, and is also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. The method specifically comprises the steps of injecting heated and melted plastic into a forming cavity by an injection molding machine under high pressure, and obtaining a final injection molding product after cooling and solidifying.
In the prior art, some injection molded products often require several metal elements (or nonmetallic semifinished elements, hereinafter referred to as metal elements) to be fixed into one final injection molded product by hot-melt plastic injection molding. The final injection molding product is generally manufactured by firstly putting a metal element into an injection mold, positioning the metal element through a mold core in the injection mold, then forming a molding cavity through matching of a thimble, a male mold plate and a female mold plate, finally injecting heated and melted plastic into the molding cavity through the injection mold, and cooling and solidifying the plastic to obtain the final injection molding product.
However, in the prior art, since a plurality of metal elements with different shapes may be implanted in a final injection molding product, since positioning of a part of metal elements on a mold is less, and when the metal elements are required to be implanted into a deep cavity of the mold, manual implantation is time-consuming, which is inconvenient for personnel to operate and affects injection molding efficiency. In general, a jig is manufactured to assist in the implantation of the metal element, thereby increasing the production cost. For the special metal elements, how to efficiently and accurately implant the metal elements into a deep cavity of a mold before injection molding is a problem to be solved.
In view of the foregoing, there is a need for an improved injection mold and method that solves the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an injection mold with an accessory implantation auxiliary component and an injection molding method thereof, which can be used for efficiently and accurately implanting accessories into a deep cavity of the mold.
In order to achieve the above object, the invention provides an injection mold with accessory implantation auxiliary components, comprising an upper template, a lower template, a plurality of ejector pins/mold cores and auxiliary components, wherein the upper template and the lower template can realize up-down direction mold closing or mold opening, the sliding block seat can slide in the front-back direction vertical to the up-down direction under the action of a power source, the upper template and the lower template jointly define a sliding block accommodating groove, the upper template, the lower template, the ejector pins/mold cores and the auxiliary components jointly enclose a forming cavity, the auxiliary components comprise a positioning guide insert and a guiding barrel, the positioning guide insert comprises a cylindrical body and a positioning guide part formed by one end of the cylindrical body, the guiding barrel comprises a cylindrical body, one end of the cylindrical body is provided with an opening, the guiding barrel is sleeved on the periphery of the positioning guide insert, the guiding barrel can move in the axial direction relative to the positioning guide insert, and an accessory can be implanted at a position between the positioning guide part of the positioning guide insert and the guiding barrel.
As a further improvement of the invention, the cross-sectional area of the positioning guide part is smaller than that of the columnar body, and a step-shaped supporting part is formed at the peripheral position of the joint of the positioning guide part and the columnar body.
As a further improvement of the invention, the positioning guide part comprises a guide head part at the free end and a straight cylinder part connected with the guide head part, the guide head part is approximately in a round table shape, the end edge of the round table shape guide head part is in arc smooth transition, and the straight cylinder part is in a cylinder shape.
As a further improvement of the invention, the injection mold is also provided with a slide insert and a slide block seat, wherein the slide insert is at least partially accommodated in the slide block accommodating groove, the upper template, the lower template, the thimble/mold core, the slide insert and the auxiliary member are jointly enclosed to form a molding cavity, the slide insert comprises a slide insert head and a slide insert engaging part, the slide insert head is provided with a fixing mechanism, the slide insert engaging part can be locked with or separated from the slide block seat, the slide insert is implanted into the injection mold in the vertical direction, and the slide block seat is driven by a power source to move along the direction vertical to the vertical direction and is locked with the slide insert engaging part of the slide insert.
As a further improvement of the invention, a slide block groove is formed in the position, close to one side, of the lower surface of the upper template in an inward sinking manner, one end of the slide block groove of the upper template is communicated with the forming cavity along the extending direction of the lower surface of the upper template, the other end of the slide block groove of the upper template penetrates through the corresponding side surface of the upper template, the slide block groove is formed in the position, corresponding to the upper template, of the upper surface of the lower template in an inward sinking manner, one end of the slide block groove of the lower template is communicated with the forming cavity along the extending direction of the upper surface of the lower template, the other end of the slide block groove of the lower template penetrates through the corresponding side surface of the lower template, and the slide block groove of the upper template and the slide block groove of the lower template jointly form the slide block accommodating groove.
As a further improvement of the invention, the slide block groove of the upper template comprises an outer side groove with a deeper concave depth and an inner side groove with a shallower concave depth, which is communicated with the outer side groove, a step-shaped stop part structure is formed at the concave depth difference position between the outer side groove of the upper template and the inner side groove of the upper template, the slide block groove of the lower template comprises an outer side groove with a deeper concave depth and an inner side groove with a shallower concave depth, which is communicated with the outer side groove, and a step-shaped stop part structure is formed at the concave depth difference position between the outer side groove of the lower template and the inner side groove of the lower template.
As a further improvement of the present invention, after the slider seat is locked with the slider insert engagement portion, the slider seat and the slider insert engagement portion may not be automatically disengaged in the moving direction of the slider seat.
As a further improvement of the present invention, after the slider seat is locked with the slider insert engagement portion, the slider seat and the slider insert engagement portion may be automatically disengaged in the moving direction of the slider insert engagement portion.
As a further improvement of the invention, both sides of the engaging part of the sliding block insert are recessed inwards and a locking groove is formed through the upper surface and the lower surface, a guide surface is formed at the corner position of both sides of the head part of the engaging part of the sliding block insert, which is positioned in front of the locking groove, an inwards recessed limit groove is formed at the end surface of one end of the sliding block seat corresponding to the engaging part of the sliding block insert, at least one elastic block capable of realizing passive expansion is further arranged in the sliding block seat, at least part of the structure of the at least one elastic block is protruded into the spring groove from one inner groove wall of the limit groove in a retractable mode, a matched guide surface matched with the guide surface of the engaging part of the sliding block insert is formed at the end surface of one end of the at least one elastic block, and the sliding block seat and the engaging part of the sliding block insert are locked through locking of the elastic block and the locking groove.
As a further improvement of the invention, two opposite inner groove walls of the limiting groove are respectively and inwards recessed to form spring grooves, one end of each spring groove penetrates through the side wall of the sliding block seat, the other end of each spring groove penetrates through the inner groove wall of the limiting groove, the sliding block seat further comprises a spring piece and limiting plates, the limiting plates are passively fixed at two side positions of the sliding block seat, one end of each spring groove is blocked by the limiting plates, the spring piece is accommodated in the spring groove, one end of each spring piece is fixed with the limiting plates, the other end of each spring piece is fixed with the elastic block, and elastic restoring force can be generated under the condition that the spring piece is compressed or stretched.
To achieve the above object, the present invention provides an injection molding method for producing an injection molded article using the injection mold with an accessory-implantation assisting member as described in any one of the above, comprising the steps of:
A. implanting the accessory into the guide sleeve from the opening of the guide sleeve by a power source, and downwards moving the guide sleeve by the power source until the opening edge of the guide sleeve is flush with the supporting part of the guide insert;
B. after the injection of the final injection molding product is completed, the upper die plate and the lower die plate are opened by driving the power source, and the ejector pins/die cores and the guide ejector cylinders are driven by the power source to eject the final injection molding product out of the injection mold from the up-down direction.
The beneficial effects of the invention are as follows: by additionally arranging a guide barrel. The special matching structure design of the guide insert and the guide barrel ensures that the guide barrel can move upwards synchronously along with the ejection of the ejector pin/mold core when the final injection molding product is ejected, so that the position of an implanted accessory moves upwards and is far away from a deep cavity of the injection mold, the implantation of the accessory before injection molding is simpler, more convenient and more accurate, the injection mold has the advantages of exquisite integral structure, easy manufacture and stable structure, and is suitable for mass industrialized production.
Drawings
Fig. 1 is a schematic structural view of a core part of an injection mold of the present invention, which shows a two-cavity embodiment of one mold, and which shows a schematic structural view of an upper mold plate and a lower mold plate after separation.
Fig. 2 is a schematic view of a portion of the injection mold of fig. 1 from another angle, showing a schematic view of one of the cavities of fig. 1, and further showing a schematic view of the final injection molded product carried thereon.
Fig. 3 is a schematic view of the injection mold shown in fig. 2 with the upper mold plate removed, further illustrating the removal of the slider insert and the final injection molded product.
Fig. 4 is a schematic view of the injection mold shown in fig. 3 with the upper mold plate removed, further illustrating the structure of the slide insert with the metal element implanted therein when it is implanted in a designated position on the lower mold plate.
Fig. 5 is a schematic view of the injection mold of fig. 4, showing the guide barrel raised upward and the guide barrel implanted with the fitting.
Fig. 6 is a schematic view of a structure of a slider insert implanted with metal elements in an injection mold of the present invention.
Fig. 7 is a schematic view of the structure of the injection mold of the present invention before the slide holder is clamped to the slide insert.
FIG. 8 is a schematic view of the structure of the injection mold of the present invention in which the slide mount is clamped into the slide insert.
Fig. 9 is a schematic view of the structure of the injection mold according to the present invention after the slide insert is clamped by the slide holder mold.
Fig. 10 is an exploded perspective view of the auxiliary member in the injection mold of the present invention, which further shows a schematic perspective view of the fitting.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. For the accuracy of the description herein, all references herein to directions and positional relationships are made with reference to fig. 2.
Referring to fig. 1 to 9, an injection mold 100 of the present invention includes an upper mold plate 1, a lower mold plate 2, a plurality of ejector pins/mold cores 3, a slider insert 4, a slider seat 5, and a second slider module 6. The upper die plate 1 and the lower die plate 2 can be used for realizing die assembly or die opening in the vertical direction, the sliding block insert 4 and the sliding block seat 5 form a first sliding block module (not numbered), and the sliding block seat 5 can slide in the front-rear direction perpendicular to the vertical direction under the driving of a power source. The second slider module 6 can slide in the left-right direction perpendicular to the up-down direction under the drive of the power source. In the present invention, in fig. 1, a two-cavity mold embodiment is shown, wherein fig. 2 to 4 show only a schematic structure of one cavity in fig. 1 for simplicity of illustration. As described with reference to fig. 4, 5 and 10, for more clear description of the present invention, the present invention also discloses a fitting 8, wherein the fitting 8 is a cylindrical metal ring structure, the fitting 8 is used for being implanted into the injection mold 100 before injection molding, and the fitting 8 and the final injection product 200 (also referred to as an assembly 200, and specifically shown in fig. 2) are held after injection molding is completed.
Referring to fig. 1, the upper die plate 1 is formed with a vertically penetrating pin groove 10, a slider groove 110 is formed in the lower surface of the upper die plate 1, which is recessed inward near one side thereof, and one end of the slider groove 110 along the extending direction of the lower surface of the upper die plate 1 is communicated with the pin groove 10, while the other end penetrates through the side surface of the upper die plate 1. The slider groove 110 includes an outer groove 111 with a deeper recess depth and an inner groove 112 with a shallower recess depth communicating with the outer groove. The step-shaped stop portion structure 113 is formed at the position where the recess depth difference between the outer side groove 111 and the inner side groove 112 is located.
Referring to fig. 2 to 4, the lower die plate 2 is also formed with a vertically penetrating pin slot 20, a slider slot 220 is formed in the upper surface of the lower die plate 2 near one side thereof by being recessed inward, one end of the slider slot 220 along the extending direction of the upper surface of the lower die plate 2 is communicated with the pin slot 20, and the other end penetrates the side surface of the upper die plate 2. The slider groove 220 includes an outer groove 221 with a deeper recess depth and an inner groove 222 with a shallower recess depth communicating with the outer groove. The recessed depth difference between the outer groove 221 and the inner groove 222 forms a stepped stopper structure 223.
Referring to fig. 1, a second slider groove 220 for accommodating the second slider module 6 is formed at a corresponding position of one side of the upper and lower templates 1 and 2. The second slider groove 220 is similar in shape and configuration to the slider grooves 110, 220 described above. In the present invention, the sliding directions of the second slider module 6 and the slider seat 5 of the first slider module are perpendicular to each other.
Referring to fig. 4 and 5, and referring to fig. 10, the injection mold 100 further includes an auxiliary member 9, and the auxiliary member 9 includes a positioning guide insert 91 and a guide barrel 92. The positioning guide insert 91 has a solid columnar structure, and includes a columnar body 911 and a cap portion 912 connected to one end of the columnar body 911. A positioning guide portion 913 having a smaller cross section than the cross section of the columnar body 911 is formed at a position of the columnar body 911 away from one end of the cap portion 912, and a stepped support portion 914 is formed at an outer peripheral position of a junction of the positioning guide portion 913 and the columnar body 911. The positioning guide portion 913 includes a guide head portion 9131 at a free end and a straight portion 9132 connected to the guide head portion. The guide head 9131 is substantially in a shape of a truncated cone, an end arc of the truncated cone-shaped guide head 9131 is smoothly transited, and the straight tube portion 9132 is in a cylindrical shape. In the present invention, the fitting 8 may be sleeved on the positioning guide portion 913 of the positioning guide insert 91 without being supported by the stepped support portion 914.
The guide cylinder 92 has a hollow cylindrical structure, and includes a cylindrical body 921 and an end cap 922 connected to one end of the cylindrical body 912, and an opening 923 is formed at one end of the guide cylinder 92 away from the end cap 922. In the present invention, the guiding sleeve 92 is sleeved on the outer periphery of the positioning guiding insert 91, and the guiding sleeve 92 can move in the axial direction relative to the positioning guiding insert 91.
Referring to fig. 3 to 9, the slider insert 4 includes a slider insert base 41, a slider insert head 42 integrally connected to a middle position of one end surface of the slider insert base 41, and a slider insert engaging portion 43 connected to the other end surface of the slider insert base 41. The axes of the slider insert head 42, the slider insert base 41, and the slider insert engagement portion 43 are on the same straight line. In the present invention, the slider insert base 41 is formed with a fool-proof sliding guide slot 411 recessed in a side surface thereof. The free end of the slider insert head 42 is formed with a fixing mechanism 421 for fixing the metal element 7, in the present invention, the fixing mechanism 421 is a fixing groove structure formed by recessing the end face of the free end of the slider insert head 42 inward, however, in other embodiments, the fixing mechanism 421 may be designed as a clip-like clamp mechanism.
Referring to fig. 4 to 9, the slider insert engagement portion 43 has a substantially "i" shape in plan view. Both sides of the slider insert engaging portion 43 are recessed inward and lock grooves 431 are formed through the upper and lower surfaces, the lock grooves 431 are rectangular, inner groove surfaces thereof are perpendicular to each other, and in other embodiments, the lock grooves 431 may be formed as a dovetail groove with a small opening. The two side surfaces of the head of the slider insert engagement portion 43 are formed with chamfer-shaped inclined guide surfaces 432, and of course, the guide surfaces 432 may be cambered surfaces or straight surfaces. The front end surface of the free end of the slider insert engagement portion 43 is of a planar design.
Referring to fig. 4 to 9, the slider seat 5 has a substantially concave shape in a plan view, and the slider seat 5 includes a slider seat body 51, a spring block 52, a spring member (not shown) and a limiting plate 53. The middle position of the surface of the slider seat body 51 opposite to the slider insert engagement portion 43 is concaved inwards to form a limit groove 511, the limit groove 511 penetrates the slider seat body 51 in the up-down direction, and the limit groove 511 is cuboid and is adapted to the locking groove 431. Two opposite inner groove walls of the limit groove 511 are respectively recessed inwards to form a spring groove (not shown), one end of the spring groove penetrates through the side wall of the slide block seat 5, and the other end penetrates through the inner groove wall of the limit groove 511. The spring block 52 is substantially columnar, and one end surface of the spring block 52 forms an inclined mating guide surface 521. The mating guide surface 521 is adapted to the guide surface 432 of the head of the slider insert engagement portion 43. The limiting plate 53 is passively fixed at two side positions of the body of the sliding block seat body 51, and is used for blocking a hole formed at one end of the spring groove, the spring piece is accommodated in the spring groove, one end of the spring piece is fixed with the limiting plate 53, the other end of the spring piece is fixed with the elastic block 52, and the elastic block 52 is at least partially accommodated in the spring groove.
The elastic member may generate an elastic restoring force, optionally a coil spring, under compression or extension. In a normal state, the head of the spring block 52 at least partially protrudes into the corresponding limit groove 511. The guide surface 432 of the head of the slider insert engagement portion 43 is inclined in the same direction as the mating guide surface 521 of the spring block 52. When the slider insert engaging portion 43 of the slider insert 4 is inserted into the limit groove 511, the head portion of the slider insert engaging portion 43 presses the elastic block 52 into the spring groove, and when the slider insert engaging portion 43 of the slider insert 4 is completely inserted into the limit groove 511, the elastic block 52 is reset and ejected by the elastic restoring force of the spring member to protrude into the locking groove 431, so that the slider insert engaging portion 43 is engaged and fixed with the slider seat 5, and cannot be automatically separated. When the slide insert engaging portion 43 needs to be separated from the slide seat 5, the slide insert engaging portion 43 is only required to be moved upward relative to the slide seat 5 until the slide insert engaging portion 43 is separated from the spring block 52, however, in other operation modes, the separation of the slide insert engaging portion 43 from the slide seat 5 can also indirectly drive the spring block 52 to retract into the spring groove through the movement limiting plate 53, so that the slide insert engaging portion 43 and the spring block 52 can be separated.
An injection molding process for producing a final injection molded article 200 using the injection mold 100 of the present invention is described in detail below, and includes the steps of:
A. manually implanting a metal element into the fixing mechanism 421 of the slider insert head 42 of the slider insert 4;
B. manually implanting the slider insert 4 implanted with the metal element into the slider groove 220 of the lower die plate 2;
C. the sliding block seat 5 is driven by a power source, so that a sliding block insert engagement part 43 of the sliding block insert 4 is engaged and fixed with the sliding block seat 5;
D. driving the second slider module 6 by a power source so that the second slider module moves into the second slider groove 114;
E. implanting the fitting 8 into the guide sleeve 92 from the opening 923 of the guide sleeve 92 by a power source, and driving the guide sleeve 92 to move downwards by the power source until the edge of the opening 923 of the guide sleeve 92 is flush with the supporting portion 914 of the guide insert 91;
F. the upper die plate and the lower die plate are matched by a power source, and at the moment, a sliding block accommodating groove is formed by the sliding block groove 110 of the upper die plate 1 and the sliding block groove 220 on the lower die plate 2 together to accommodate at least part of the sliding block insert 4;
G. the ejector pins/mold cores 3 of the plurality of upper templates 1 are driven by a power source, so that the plurality of ejector pins/mold cores 3 are inserted into specific positions in the ejector pin grooves 10 of the upper templates 1; the ejector pins/mold cores 3 of the plurality of lower templates 2 are driven by a power source, so that the ejector pins/mold cores 3 of the plurality of lower templates 2 are inserted into specific positions in the ejector pin grooves 20 of the lower templates 2. At this time, the upper die plate 1, the lower die plate 2, the ejector pin/die core 3, the slide block insert 4, the second slide block module 6, the guide ejector sleeve 92 and the fitting 8 are jointly enclosed to form a forming cavity (not labeled);
H. completing other operations … requiring preparation;
I. injecting the heated and melted hot melt material into a forming cavity through a glue pouring runner of an injection mold at high pressure, and cooling and solidifying to obtain a final injection molding product 200;
J. the upper die plate and the lower die plate are opened by driving a power source, the final injection molding product 200 is ejected out of the injection mold together with the sliding block insert from the upper and lower directions by driving the ejector pins/die cores 3 and the guide ejector cylinders 92 by driving the power source, and then the final injection molding product 200 is separated from the sliding block insert by driving the power source, so that a complete and independent final injection molding product 200 is obtained.
In other embodiments, the step I may be replaced by separating the final injection product 200 from the insert by driving the slide base with a power source, opening the upper mold plate and the lower mold plate with a power source, and ejecting the final injection product 200 out of the injection mold from the up-down direction by driving the ejector pins/mold cores 3 and the guide cylinders 92 with a power source, thereby obtaining a complete and independent final injection product 200.
In summary, the injection mold 100 of the present invention is provided with the guide cylinder 92. The special matching structure design of the guide insert 91 and the guide barrel 92 ensures that the guide barrel 92 can move upwards synchronously along with the ejection of the ejector pin/mold core 3 when the final injection molding product 200 is ejected, so that the position of the implanted fitting 8 moves upwards and is far away from the deep cavity of the injection mold, the implantation of the fitting 8 before injection molding is simpler, more convenient and more accurate, the injection mold has the advantages of exquisite integral structure, easy manufacture and stable structure, and is suitable for mass industrialized production.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. An injection mold having an accessory implantation aid member, characterized by: the die comprises an upper die plate, a lower die plate, a plurality of ejector pins/die cores, an auxiliary member, a sliding block seat and a sliding block insert, wherein the upper die plate and the lower die plate can be used for realizing die assembly or die opening in the vertical direction, the upper die plate and the lower die plate jointly define a sliding block accommodating groove, the sliding block insert is detachably implanted into the sliding block accommodating groove, the sliding block seat can be used for driving the sliding block insert to slide in the front-rear direction vertical to the vertical direction under the action of a power source, the auxiliary member comprises a positioning guide insert and a guide sleeve, the positioning guide insert comprises a columnar body and a positioning guide part formed by one end of the columnar body, the guide sleeve comprises a cylindrical body part, one end of the cylindrical body part is provided with an opening, the guide sleeve is sleeved on the periphery of the positioning guide insert, and the guide sleeve can axially move relative to the positioning guide insert;
the cross section area of the positioning guide part is smaller than that of the columnar body, and a step-shaped supporting part is formed at the peripheral position of the joint of the positioning guide part and the columnar body;
when the upper die plate and the lower die plate are opened, the guide barrel moves upwards, the opening edge of the guide barrel upwards exceeds the upper end edge of the guide insert, and a fitting can be implanted into the opening of the guide barrel;
when the upper template and the lower template are assembled, the guide sleeve moves downwards until the opening edge of the guide sleeve is flush with the supporting part of the guide insert, at the moment, the accessory is loaded on the supporting part and positioned between the positioning guide part and the guide sleeve, and the upper template, the lower template, the ejector pin/mold core, the slide block insert, the guide sleeve and the accessory are jointly enclosed to form a forming cavity.
2. The injection mold with accessory-implant assist member of claim 1, wherein: the positioning guide part comprises a guide head part positioned at the free end and a straight barrel part connected with the guide head part, the guide head part is approximately in a round table shape, the edge of the end part of the round table-shaped guide head part is in arc smooth transition, and the straight barrel part is in a cylinder.
3. The injection mold with accessory-implant assist member of claim 1, wherein: the sliding block insert comprises a sliding block insert head and a sliding block insert occlusion part, wherein a fixing mechanism is formed on the sliding block insert head, the sliding block insert occlusion part can be locked or separated from a sliding block seat, the sliding block insert is implanted into an injection mold in the vertical direction, and the sliding block seat is driven by a power source to move along the direction vertical to the vertical direction and is locked with the sliding block insert occlusion part of the sliding block insert.
4. An injection mold with accessory-implantation aid member as claimed in claim 3, wherein: the lower surface of cope match-plate pattern is close to wherein one side position inwards sunken to be formed with the slider groove, the slider groove one end of cope match-plate pattern along the lower surface extending direction of cope match-plate pattern with the shaping chamber intercommunication, the other end in slider groove of cope match-plate pattern runs through the corresponding side of cope match-plate pattern, the slider groove position inwards sunken of the upper surface of cope match-plate pattern is formed with the slider groove, the slider groove one end of lower bolster along the upper surface extending direction of lower bolster with the shaping chamber intercommunication, the other end in slider groove of lower bolster runs through the corresponding side of lower bolster, the slider groove of cope match-plate pattern and the slider groove of lower bolster constitute jointly the slider holding tank.
5. The injection mold with accessory-implant assist member of claim 4, wherein: the slide block groove of the upper template comprises an outer side groove with a deeper depression depth and an inner side groove with a shallower depression depth, wherein the inner side groove is communicated with the outer side groove, a step-shaped stop part structure is formed at the position of a depression depth difference between the outer side groove of the upper template and the inner side groove of the upper template, the slide block groove of the lower template comprises an outer side groove with a deeper depression depth and an inner side groove with a shallower depression depth, the inner side groove is communicated with the outer side groove, and a step-shaped stop part structure is formed at the position of a depression depth difference between the outer side groove of the lower template and the inner side groove of the lower template.
6. An injection mold with accessory-implantation aid member as claimed in claim 3, wherein: after the slide block seat is locked with the slide block insert meshing part, the slide block seat and the slide block insert meshing part cannot be separated from each other in the moving direction of the slide block seat.
7. An injection mold with accessory-implantation aid member as claimed in claim 3, wherein: after the sliding block seat is locked with the sliding block insert meshing part, the sliding block seat and the sliding block insert meshing part can be automatically separated from each other in the moving direction of the sliding block insert meshing part.
8. An injection mold with accessory-implantation aid member as claimed in claim 3, wherein: the sliding block insert comprises a sliding block insert, and is characterized in that locking grooves are formed in two sides of an engaging part of the sliding block insert, the locking grooves penetrate through the upper surface and the lower surface of the sliding block insert, guide surfaces are formed at corner positions of two sides of a head part, located in front of the locking grooves, of the engaging part of the sliding block insert, inwards-recessed limit grooves are formed in the end face of one end of the sliding block seat, corresponding to the engaging part of the sliding block insert, at least one elastic block capable of realizing passive stretching is further arranged in the sliding block seat, spring grooves are formed in two opposite inner groove walls of the limit grooves in an inwards-recessed mode, at least one part of structures of the elastic block is protruded into the spring grooves in a retractable mode from one inner groove wall of the limit grooves, and matching guide surfaces matched with the guide surfaces of the engaging part of the sliding block insert are formed on the end face of one end of the at least one elastic block, and the sliding block seat and the engaging part of the sliding block insert are locked through locking of the elastic block and the locking grooves.
9. The injection mold with accessory-implant assist member of claim 8, wherein: one end of each spring groove penetrates through the side wall of the sliding block seat, the other end of each spring groove penetrates through the inner groove wall of the limiting groove, the sliding block seat further comprises a spring piece and limiting plates, the limiting plates are passively fixed at two side positions of the sliding block seat, one end of each spring groove is blocked by the limiting plates, the spring piece is accommodated in the spring groove, one end of each spring piece is fixed with the limiting plates, the other end of each spring piece is fixed with the elastic block, and elastic restoring force can be generated under the condition that the spring piece is compressed or stretched.
10. An injection molding method for producing an injection molded article using the injection mold with a fitting implantation aid member according to any one of claims 1 to 9, characterized in that: the injection molding method comprises the following steps:
A. implanting the accessory into the guide sleeve from the opening of the guide sleeve by a power source, and downwards moving the guide sleeve by the power source until the opening edge of the guide sleeve is flush with the supporting part of the guide insert;
B. after the injection of the final injection molding product is completed, the upper die plate and the lower die plate are opened by driving the power source, and the ejector pins/die cores and the guide ejector cylinders are driven by the power source to eject the final injection molding product out of the injection mold from the up-down direction.
CN201810533224.7A 2018-05-29 2018-05-29 Injection mold with accessory implantation auxiliary component and injection molding method thereof Active CN108705726B (en)

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