Injection mold for automobile door handle cup cover plate

Abstract

The utility model relates to an injection mold for an automobile door handle cup cover plate. Comprising a main mold plate and an auxiliary mold plate which are arranged in a front-back mode and matched with each other, a main mold core and an auxiliary mold core which are embedded in the rear side of the main mold plate and the front side of the auxiliary mold plate and matched with each other, an end plate fixed to the front side of the main mold plate, a bottom plate fixed to the rear side of the auxiliary mold plate and a material ejecting mechanism arranged between the bottom plate and the auxiliary mold plate. Two feeding modules which are symmetrically distributed up and down are further embedded in the end face of the auxiliary die core, the upper feeding module is arranged between the two upper female die cavities, and the lower feeding module is arranged between the two lower female die cavities. According to the utility model, the molten material can still have enough flow velocity and pressure in the later stage of molding, so that the molten material is ensured to have better flowability all the time in the molding process so as to avoid the retardation phenomenon, and the production reject ratio is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of injection mould of automobile door handle cup cover plate. BACKGROUND

[0002] Automobile handle cup cover plate is installed on the inside of door to be used for placing beverage and storing some small articles, the design of handle cup cover plate aims at providing user with convenient and comfortable driving environment, by placing beverage on handle cup cover plate, it can ensure that beverage is placed stably, reduce the risk of shaking and pouring in driving process;In addition to placing beverage, handle cup cover plate can also be used to store some small articles, such as mobile phone, key etc.;In order to facilitate production, the handle cup cover plate on market is almost plastic part, so its production needs to be completed by means of matched injection mould and injection equipment.

[0003] Since the need to form large area, small thickness cavity in handle cup cover plate, this makes the profile edge of handle cup cover plate form long closed flange, and the existing handle cup cover plate injection mould adopts the way of spreading from center to periphery to make molten material fill cavity, since the cavity area is large, when molten material reaches the profile edge of handle cup cover plate, the flow speed of molten material has already decreased a lot, the pressure of molten material also greatly reduces, and the flowability becomes poor, and it is easy to occur blocking phenomenon, thereby leading to the increase of production defective rate, which needs to be further improved. SUMMARY

[0004] In view of the above status of prior art, the technical problem to be solved by the utility model is to provide a kind of injection mould of automobile door handle cup cover plate, which makes molten material adopt the way of spreading from outside to inside, and simultaneously makes the injected molten material automatically pressurized and speeded up by means of the necking design of arc-shaped variable-diameter channel, thereby ensuring that molten material always has good flowability in the process of forming to avoid blocking phenomenon, so as to effectively reduce production defective rate.

[0005] The utility model solves the above technical problem by adopting the technical scheme of a kind of injection mould of automobile door handle cup cover plate, which includes respectively front and rear settings and mutually cooperating main mould plate and auxiliary mould plate, respectively embedding in the rear side of main mould plate and the front side of auxiliary mould plate and mutually cooperating main mould and auxiliary mould, end plate fixed in the front side of main mould plate, bottom plate fixed in the rear side of auxiliary mould plate, and top material mechanism between bottom plate and auxiliary mould plate, characterized in that:

[0006] The end face center of the auxiliary mould is provided with a counterbore, and four recessed die cavities are also provided on the end face of the auxiliary mould, which are distributed symmetrically around the counterbore, correspondingly, four convex die seats are formed on the end face of the main mould, which are arranged symmetrically and matched with the four recessed die cavities.

[0007] The end face of the sub-mold core is also embedded with two feeding modules symmetrically distributed above and below, one of the feeding modules above is arranged between the two upper die cavities, and one of the feeding modules below is arranged between the two lower die cavities;

[0008] The feeding module comprises a first flow dividing block and a second flow dividing block which are spliced with each other, the left and right sides of the first flow dividing block respectively extend into the two adjacent die cavities, and the left and right sides of the second flow dividing block respectively extend into the two adjacent die cavities;

[0009] A first notch groove is formed in the front side of the first flow dividing block towards one side edge of the second flow dividing block, and correspondingly, a second notch groove which cooperates with the first notch groove is formed in the front side of the second flow dividing block towards one side edge of the first flow dividing block, and the first notch groove and the second notch groove are spliced with each other to form a first flow dividing groove;

[0010] A first arc surface which is symmetrically arranged is formed at the left front corner and the right front corner of the first flow dividing block, and the two first arc surfaces respectively adjoin the adjacent side inner walls in the corresponding two die cavities;

[0011] A second arc surface which is symmetrically arranged is formed at the left front corner and the right front corner of the second flow dividing block, and the two second arc surfaces respectively adjoin the adjacent side inner walls in the corresponding two die cavities;

[0012] Two first arc grooves which are symmetrically distributed are formed in the side outer wall of the first flow dividing block towards the second flow dividing block, the right end of the first arc groove is in communication with the side edge of the first notch groove opening towards the second flow dividing block, the left end of the first arc groove is in communication with the side edge of the first arc surface opening towards the second flow dividing block, and the width of the right end of the first arc groove is greater than that of the left end;

[0013] Two second arc grooves which are symmetrically distributed are formed in the side outer wall of the second flow dividing block towards the first flow dividing block, the right end of the second arc groove is in communication with the side edge of the second notch groove opening towards the first flow dividing block, the left end of the second arc groove is in communication with the side edge of the second arc surface opening towards the first flow dividing block, and the width of the right end of the second arc groove is greater than that of the left end;

[0014] The positions of the two second arc grooves are matched with the positions of the two first arc grooves, and each second arc groove and one first arc groove on the same side form an arc-shaped variable-diameter passage.

[0015] Preferably, a connecting groove is formed in the middle of the bottom surface of the second notch groove, and correspondingly, upper and lower side edges of the opening of the counterbore are each provided with a second shunt groove facing the two feeding modules, the upper end of the second shunt groove is in communication with the inside of the connecting groove on the second shunt block in the upper feeding module, and the lower end of the second shunt groove is in communication with the inside of the connecting groove on the second shunt block in the lower feeding module.

[0016] Preferably, two first positioning grooves are formed on the side wall of the first shunt block facing the second shunt block, the front end openings of the two first positioning grooves are each intersected with the inner wall of the second notch groove so that the inside of the two first positioning grooves is in communication with the inside of the second notch groove.

[0017] Preferably, two second positioning grooves are formed on the side wall of the second shunt block facing the first shunt block, the front end openings of the two second positioning grooves are each intersected with the inner wall of the first notch groove so that the inside of the two first positioning grooves is in communication with the inside of the first notch groove.

[0018] Preferably, the positions of the two second positioning grooves are matched with the positions of the two first positioning grooves, respectively, and a positioning hole is formed between each first positioning groove and a corresponding second positioning groove.

[0019] Preferably, a vertically distributed buffer groove is formed in the middle of the front side wall of the first shunt block, the lower end opening of the buffer groove is intersected with the inner wall of the first notch groove so that the inside of the buffer groove is in communication with the inside of the second notch groove.

[0020] Preferably, a first extension block is formed rearward on the rear side wall of the first shunt block, and correspondingly, a second extension block matched with the first extension block is formed rearward on the rear side wall of the second shunt block, and the side wall of the first extension block facing the second extension block is matched with the side wall of the second extension block facing the first extension block.

[0021] Preferably, a right-angle notch is formed on the rear side edge of the side wall of the first extension block facing the second extension block, and correspondingly, a protrusion matched with the right-angle notch is formed upward on the rear side edge of the side wall of the second extension block facing the first extension block, and the protrusion is embedded in the right-angle notch.

[0022] Preferably, two extension grooves are formed on the side wall of the protrusion facing the first extension block, the two extension grooves are distributed left and right, respectively, and are concentrically distributed with the two second positioning grooves, respectively, and the front end openings of the two extension grooves are in communication with the rear end openings of the two second positioning grooves, respectively.

[0023] Compared with the prior art, the utility model has the advantages that: the utility model makes the molten material adopt the diffusion mode from outside to inside, and then makes the molten material first form the structure at the contour edge of the handle cup cover plate, and then forms the recess cavity in the handle cup cover plate, and the design of the arc-shaped reducing channel neck makes the injected molten material automatically increase pressure and speed, and then guarantees that the molten material still has sufficient flow rate and pressure in the later stage of forming, so that the molten material always has good fluidity in the forming process to avoid the blocking phenomenon, and then effectively reduces the production defective rate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is the left front side exploded view of the utility model;

[0025] Fig. 2 It is the right rear side structure view of the main mould of the utility model;

[0026] Fig. 3 It is the left front side exploded view of the feeding module of the utility model;

[0027] Fig. 4 It is the right front side exploded view of the feeding module of the utility model;

[0028] Fig. 5 It is the right rear side overhead exploded view of the feeding module of the utility model;

[0029] Fig. 6 It is the right rear side bottom view exploded view of the feeding module of the utility model. DETAILED DESCRIPTION

[0030] Unless otherwise defined, technical terms or scientific terms used in the utility model should be understood as the usual meaning understood by a person with ordinary skills in the field of the utility model. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] In order to keep the following description of the utility model embodiments clear and concise, the utility model omits the detailed description of known functions and known components.

[0032] AsFigs. 1-6 The injection mold for the automobile door handle cup cover plate comprises a main mold plate 2 and a vice mold plate 4 arranged in front and back respectively and matched with each other, a main mold core 3 and a vice mold core 7 embedded in the rear side of the main mold plate 2 and the front side of the vice mold plate 4 respectively and matched with each other, an end plate 1 fixed to the front side of the main mold plate 2, a bottom plate 5 fixed to the rear side of the vice mold plate 4, and a material ejection mechanism 6 arranged between the bottom plate 5 and the vice mold plate 4.

[0033] A counterbore 72 is formed in the center of the end face of the vice mold core 7, and four recessed cavities 71 are formed in the end face of the vice mold core 7 and symmetrically distributed in pairs around the counterbore 72, and correspondingly, four convex mold seats 31 are formed in the end face of the main mold core 3 and arranged in pairs symmetrically and matched with the four recessed cavities 71 respectively.

[0034] Two feeding modules 8 are embedded in the end face of the vice mold core 7 and symmetrically distributed in pairs, and the upper feeding module 8 is arranged between the upper two recessed cavities 71, and the lower feeding module 8 is arranged between the lower two recessed cavities 71.

[0035] The feeding module 8 comprises a first flow dividing block 81 and a second flow dividing block 82 which are spliced with each other, and the left and right sides of the first flow dividing block 81 respectively extend into the adjacent two recessed cavities 71, and the left and right sides of the second flow dividing block 82 respectively extend into the adjacent two recessed cavities 71.

[0036] A first notch groove 812 is formed in the side edge of the front side of the first flow dividing block 81 which faces the second flow dividing block 82, and correspondingly, a second notch groove 821 is formed in the side edge of the front side of the second flow dividing block 82 which faces the first flow dividing block 81, and the second notch groove 821 and the first notch groove 812 are spliced with each other to form a first flow dividing groove 83.

[0037] A first arc surface 814 is formed in the left front corner and the right front corner of the first flow dividing block 81 and arranged symmetrically, and the two first arc surfaces 814 respectively connect with the adjacent side inner walls in the corresponding two recessed cavities 71.

[0038] A second arc surface 825 is formed in the left front corner and the right front corner of the second flow dividing block 82 and arranged symmetrically, and the two second arc surfaces 825 respectively connect with the adjacent side inner walls in the corresponding two recessed cavities 71.

[0039] The first flow distribution block 81 is provided with two first arc-shaped grooves 815 on the side wall facing the second flow distribution block 82, the right end of the first arc-shaped groove 815 is communicated with the side edge of the first flow distribution block 81 facing the second flow distribution block 82, the left end of the first arc-shaped groove 815 is communicated with the side edge of the first arc surface 814 facing the second flow distribution block 82, and the width of the right end of the first arc-shaped groove 815 is greater than that of the left end.

[0040] The second flow distribution block 82 is provided with two second arc-shaped grooves 824 on the side wall facing the first flow distribution block 81, the right end of the second arc-shaped groove 824 is communicated with the side edge of the second flow distribution block 82 facing the first flow distribution block 81, the left end of the second arc-shaped groove 824 is communicated with the side edge of the second arc surface 825 facing the first flow distribution block 81, and the width of the right end of the second arc-shaped groove 824 is greater than that of the left end.

[0041] The positions of the two second arc-shaped grooves 824 are matched with those of the two first arc-shaped grooves 815, and each second arc-shaped groove 824 and the first arc-shaped groove 815 on the same side form an arc-shaped variable-diameter passage 85.

[0042] The second flow distribution block 82 is provided with two second arc-shaped grooves 824 on the side wall facing the first flow distribution block 81, the right end of the second arc-shaped groove 824 is communicated with the side edge of the second flow distribution block 82 facing the first flow distribution block 81, the left end of the second arc-shaped groove 824 is communicated with the side edge of the second arc surface 825 facing the first flow distribution block 81, and the width of the right end of the second arc-shaped groove 824 is greater than that of the left end.

[0043] The first flow distribution block 81 is provided with two first positioning grooves 813 on the side wall facing the second flow distribution block 82, the front end of each first positioning groove 813 is intersected with the inner wall of the second notch groove 821, so that the interior of the two first positioning grooves 813 is communicated with the interior of the second notch groove 821.

[0044] The second flow distribution block 82 is provided with two second positioning grooves 823 on the side wall facing the first flow distribution block 81, the front end of each second positioning groove 823 is intersected with the inner wall of the first notch groove 812, so that the interior of the two first positioning grooves 813 is communicated with the interior of the first notch groove 812.

[0045] The positions of the two second positioning grooves 823 are matched with those of the two first positioning grooves 813, and a positioning hole 84 is formed between each first positioning groove 813 and the corresponding second positioning groove 823.

[0046] The middle part of the front side outer wall of the first flow distribution block 81 is provided with vertically distributed buffer grooves 811, and the lower end openings of the buffer grooves 811 intersect with the inner walls of the first gap grooves 812 to make the interiors of the buffer grooves 811 and the interiors of the second gap grooves 821 communicate with each other.

[0047] The rear side outer wall of the first flow distribution block 81 is formed with a first extension block 816, and correspondingly, the rear side outer wall of the second flow distribution block 82 is formed with a second extension block 826 which cooperates with the first extension block 816, and the side outer wall of the first extension block 816 which faces the second extension block 826 and the side outer wall of the second extension block 826 which faces the first extension block 816 are mutually fitted.

[0048] The rear side edge of the side outer wall of the first extension block 816 which faces the second extension block 826 is formed with a right-angle gap 817, and correspondingly, the rear side edge of the side outer wall of the second extension block 826 which faces the first extension block 816 is formed with a protrusion 827 which cooperates with the right-angle gap 817, and the protrusion 827 is embedded in the right-angle gap 817.

[0049] The side outer wall of the protrusion 827 which faces the first extension block 816 is provided with two extension grooves 828 which are respectively left and right distributed and concentrically distributed with the two second positioning grooves 823, and the front end openings of the two extension grooves 828 respectively communicate with the rear end openings of the two second positioning grooves 823.

[0050] Working principle:

[0051] The end plate 1 and the main template 2 are driven to move rearward until the rear side of the main template 2 and the front side of the auxiliary template 4 are mutually fitted, at this time, the end face of the main die core 3 and the end face of the auxiliary die core 7 are also mutually fitted, and the four protrusion blocks 31 respectively extend into the four concave die cavities 71, and the above structure and principle are all prior art.

[0052] The molten material enters the sink hole 72 through the runner arranged in the end plate 1 and the main template 2, and then enters the connecting groove 822 on the second flow distribution block 82 in the two feeding modules 8 through the two second flow distribution grooves 73 respectively, and then enters the arc-shaped variable-diameter passage 85 through the two ends of the first flow distribution groove 83 respectively, and finally is injected between the side outer wall of each protrusion block 31 and the side inner wall of the corresponding concave die cavity 71, and then fills each protrusion block 31 and the corresponding concave die cavity 71 from the outside to the inside, and after cooling, four handle cup cover plates 9 can be formed.

[0053] Since the right end of the first arc-shaped groove 815 is wider than the left end, and the right end of the second arc-shaped groove 824 is wider than the left end, the inner diameter of the feeding port of the combined arc-shaped reducing passage 85 is larger than the inner diameter of the discharging port, so that the flow rate of the molten material output from the discharging port of the arc-shaped reducing passage 85 is automatically accelerated, and each convex die seat 31 and the corresponding concave die cavity 71 can be quickly and fully filled.

[0054] After the molding is completed, the driving end plate 1 and the main mold plate 2 move forward to separate the main mold plate 2 from the auxiliary mold plate 4, so that the end surface of the main mold 3 is separated from the end surface of the auxiliary mold 7, and finally the four handle cup cover plates 9 after molding are pushed out by the ejecting mechanism 6.

[0055] The utility model makes the molten material adopt the diffusion mode from outside to inside, and then the molten material is first molded into the structure located at the contour edge of the handle cup cover plate 9, and then the concave cavity in the handle cup cover plate 9 is molded, and the injection of the molten material is automatically pressurized and accelerated by the necking design of the arc-shaped reducing passage 85, so that the molten material still has sufficient flow rate and pressure in the later stage of molding, thereby ensuring that the molten material always has good fluidity in the molding process to avoid the blocking phenomenon, and the production defective rate is effectively reduced.

[0056] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or equivalently replace some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the utility model embodiments.

Claims

1. An injection mold for a car door handle cup cover plate, comprising a main mold plate and a sub mold plate arranged in front and back respectively and cooperating with each other, a main mold core and a sub mold core embedded in the rear side of the main mold plate and the front side of the sub mold plate respectively and cooperating with each other, an end plate fixed on the front side of the main mold plate, a bottom plate fixed on the rear side of the sub mold plate, and a stripping mechanism arranged between the bottom plate and the sub mold plate, characterized in that: a counterbore is formed in the center of the end face of the sub mold core, and four die cavities are formed on the end face of the sub mold core, which are symmetrically distributed in pairs around the counterbore, correspondingly, four convex mold seats are formed on the end face of the main mold core, which are symmetrically arranged in pairs and cooperate with the four die cavities respectively; two feeding modules are embedded in the end face of the sub mold core, which are symmetrically distributed in pairs, the upper one is arranged between the upper two die cavities, and the lower one is arranged between the lower two die cavities; the feeding module comprises a first flow dividing block and a second flow dividing block which are spliced together, the left and right sides of the first flow dividing block respectively extend into the adjacent two die cavities, and the left and right sides of the second flow dividing block respectively extend into the adjacent two die cavities; a first notch groove is formed on the side edge of the front side of the first flow dividing block facing the second flow dividing block, correspondingly, a second notch groove is formed on the side edge of the front side of the second flow dividing block facing the first flow dividing block, which cooperates with the first notch groove, and the first notch groove and the second notch groove are spliced together to form a first flow dividing groove; a first arc surface is formed on the left front corner and the right front corner of the first flow dividing block, which are symmetrically arranged, and the two first arc surfaces respectively connect with the adjacent side inner walls in the corresponding two die cavities; a second arc surface is formed on the left front corner and the right front corner of the second flow dividing block, which are symmetrically arranged, and the two second arc surfaces respectively connect with the adjacent side inner walls in the corresponding two die cavities; two first arc grooves are formed on the side outer wall of the first flow dividing block facing the second flow dividing block, the right end of the first arc groove communicates with the side edge of the first notch groove opening facing the second flow dividing block, the left end of the first arc groove communicates with the side edge of the first arc surface facing the second flow dividing block, and the right end width of the first arc groove is greater than the left end width; two second arc grooves are formed on the side outer wall of the second flow dividing block facing the first flow dividing block, the right end of the second arc groove communicates with the side edge of the second notch groove opening facing the first flow dividing block, the left end of the second arc groove communicates with the side edge of the second arc surface facing the first flow dividing block, and the right end width of the second arc groove is greater than the left end width; the positions of the two second arc grooves respectively cooperate with the positions of the two first arc grooves, and each second arc groove and the first arc groove on the same side form an arc-shaped variable diameter channel.

2. The injection mold for a door handle cup cover of an automobile according to claim 1, wherein The bottom of the second gap groove is provided with a connecting groove, and the upper and lower edges of the opening of the counterbore are provided with a second shunt groove respectively, the upper end of the second shunt groove is communicated with the connecting groove on the second shunt block in the upper feed module, and the lower end of the second shunt groove is communicated with the connecting groove on the second shunt block in the lower feed module.

3. The injection mold for a door handle cup cover of an automobile according to claim 1, wherein Two first positioning grooves are formed on the side wall of the first shunt block facing the second shunt block, and the front end openings of the two first positioning grooves are intersected with the inner wall of the second gap groove, so that the interiors of the two first positioning grooves are communicated with the interior of the second gap groove.

4. The injection mold for a door handle cup cover of an automobile according to claim 3, wherein Two second positioning grooves are formed on the side wall of the second shunt block facing the first shunt block, and the front end openings of the two second positioning grooves are intersected with the inner wall of the first gap groove, so that the interiors of the two first positioning grooves are communicated with the interior of the first gap groove.

5. The injection mold for a door handle cup cover of an automobile according to claim 4, wherein The positions of the two second positioning grooves are matched with the positions of the two first positioning grooves respectively, and a positioning hole is formed between each first positioning groove and the corresponding second positioning groove.

6. The injection mold for a door handle cup cover of an automobile according to claim 1, wherein A vertically distributed buffer groove is formed in the middle of the front side wall of the first shunt block, and the lower end opening of the buffer groove is intersected with the inner wall of the first gap groove, so that the interior of the buffer groove is communicated with the interior of the second gap groove.

7. The injection mold for a door handle cup cover of an automobile according to claim 1, wherein A first extension block is formed on the rear side wall of the first shunt block, and a second extension block matched with the first extension block is formed on the rear side wall of the second shunt block, and the side wall of the first extension block facing the second extension block is matched with the side wall of the second extension block facing the first extension block.

8. The injection mold for a door handle cup cover of an automobile according to claim 7, wherein A right-angle gap is formed on the rear side edge of the side wall of the first extension block facing the second extension block, and a convex block matched with the right-angle gap is formed on the rear side edge of the side wall of the second extension block facing the first extension block, and the convex block is embedded in the right-angle gap.

9. The injection mold for a door handle cup cover of an automobile according to claim 8, wherein Two extension grooves are formed on the side wall of the convex block facing the first extension block, and the two extension grooves are distributed left and right respectively and concentrically with the two second positioning grooves, and the front end openings of the two extension grooves are communicated with the rear end openings of the two second positioning grooves respectively.

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