CN206465395U

CN206465395U - A kind of injection mold of plate of front splash guard of motorcycle

Info

Publication number: CN206465395U
Application number: CN201720118201.0U
Authority: CN
Inventors: 史小军
Original assignee: Pengjiang Jiangmen Rongsheng Industrial Co Ltd
Current assignee: Pengjiang Jiangmen Rongsheng Industrial Co Ltd
Priority date: 2017-02-08
Filing date: 2017-02-08
Publication date: 2017-09-05
Anticipated expiration: 2027-02-08

Abstract

The utility model discloses a kind of injection mold of plate of front splash guard of motorcycle, including injection mold, die cavity provided with correspondence front mudguard shape in the injection mold, the mould is provided with the cast gate for connecting the die cavity, the die cavity includes master shield chamber and the preceding damping backplate chamber positioned at the master shield chamber front end both sides, the assembling recess coordinated with motorcycle front damper component is formed on rear side of the preceding damping backplate chamber, the cast gate is communicated to assembling recess side wall；The utility model by cast gate by being communicated to the assembling recess side wall formed on rear side of preceding damping backplate chamber, subsequent artefacts can be made to remove the cast gate scar produced to be located at after front mudguard is installed on sightless wall, product external surfaces are more aesthetically pleasing, it also avoid product external surfaces has loose or flow liner simultaneously, overall appearance quality is higher, the qualification rate of application is improved, so as to reduce manufacturing cost.

Description

A kind of injection mold of plate of front splash guard of motorcycle

Technical field

The utility model is related to injection mold, especially a kind of injection mold of plate of front splash guard of motorcycle.

Background technology

Plate of front splash guard of motorcycle is generally molded using ABS resin (terpolymer of acrylonitrile, butadiene and styrene) Shaping.As shown in Figure 1 and Figure 2, it is the traditional injection moulding mould 1 ' of front mudguard, generally uses three template dies or die structure of hot runner Form, the spot pouring mouth 3 ' of mould is arranged on product upper surface centre position.

And ABS resin belongs to high viscosity (i.e. lazy flow) material, the high temperature ABS for entering mold runner during injection at first melts Cooled and solidified when glue passes through mold runner with mould contact surface part, when follow-up sizing material enters fashionable, promote solidifying substance to enter product Surface, and the former possibly can not fuse completely with the ABS melten gels that subsequently enter, will be produced near product surface cast gate microcosmic Crackle.And during application, paint liquid penetrates into crack depth depth, normal surface paint liquid depth of penetration is very shallow, causes lacquer painting display color not Unanimously, cause to be molded loose problem, even flow liner is produced when situation is serious.

Spot pouring mouth scar can be produced in product surface during injection molding simultaneously, and mud guard wall thickness is relatively thin, even if by hole irrigation Mouthful the product back side is arranged on, flow liner and loose injection problem still can be reacted in product external surfaces, causes that presentation quality is poor, painting Fill qualification rate low, virtually add manufacturing cost.

The content of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of injection mold of plate of front splash guard of motorcycle.

The utility model solves the technical scheme that its technical problem used：

Provided with correspondence front in a kind of injection mold of plate of front splash guard of motorcycle, including injection mold, the injection mold The die cavity of mud plate shape, the mould is provided with the cast gate for connecting the die cavity, and the die cavity includes master shield chamber and positioned at institute State to be formed on rear side of the preceding damping backplate chamber of master shield chamber front end both sides, the preceding damping backplate chamber and match somebody with somebody with motorcycle front damper component The assembling recess of conjunction, the cast gate is communicated to assembling recess side wall.

The cast gate to the flow channel cross-section between the wall of the assembling recess side gradually increases.

The injection mold is symmetrically arranged with two cast gates.

The assembling recess side wall is provided with the locating surface with the motorcycle front damper component contoured fit, the cast gate side To being communicated to the locating surface.

Described pour assembles recess and extends to form vertical injection molding channel down described in opening's edge, the vertical injection molding channel end is horizontal The horizontal injection molding channel connected to being extended with the locating surface.

The cast gate lateral communication is to the junction of the locating surface and the preceding damping backplate cavity wall wall.

The beneficial effects of the utility model are：The assembling recess formed before by the way that cast gate is communicated on rear side of damping backplate chamber Side wall, can make subsequent artefacts remove the cast gate scar produced and be located at after front mudguard is installed on sightless wall, outside product Surface is more aesthetically pleasing, while it also avoid product external surfaces has loose or flow liner, overall appearance quality is higher, improves The qualification rate of application, so as to reduce manufacturing cost.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the plate of front splash guard of motorcycle injection mold of prior art；

Fig. 2 is the die cavity of the plate of front splash guard of motorcycle injection mold of prior art；

Fig. 3 is plate of front splash guard of motorcycle injection mold of the present utility model；

Fig. 4 is plate of front splash guard of motorcycle molding mold cavity of the present utility model；

Fig. 5 is another view of molding mold cavity；

Fig. 6 is the three-dimensional cutaway view of molding mold cavity.

Embodiment

Reference picture 3 is set in injection mold 1 to Fig. 6, a kind of injection mold of plate of front splash guard of motorcycle, including injection mold 1 There is the die cavity 2 of corresponding front mudguard shape, mould 1 is provided with the cast gate 3 of connection die cavity 2, and die cavity 2 includes master shield chamber 21 and position The preceding damping backplate chamber 22 set in the front end both sides of master shield chamber 21 to this, and the rear side of preceding damping backplate chamber 22 is formed and motorcycle The assembling recess 23 that preceding dampening assembly coordinates, cast gate 3 is communicated to the assembling side wall of recess 23.

When being assemblied in motorcycle by fastening position 232 due to front mudguard, motorcycle front damper meeting partial occlusion lives assembling The side of recess 23, and cast gate 3 is communicated to the side wall, subsequent artefacts can be made to remove the cast gate scar produced and be located at front mud Plate install after on sightless wall, make product external surfaces more aesthetically pleasing, at the same it also avoid product external surfaces exist it is loose or Flow liner problem, overall appearance quality is higher, improves the qualification rate of application, so as to reduce manufacturing cost.

Further, make cast gate 3 to assembling the side wall of recess 23 between flow channel cross-section gradually increase, i.e., mold runner from Cast gate 3 is to ascending in runner, and the sizing material of cooling and solidifying can be stuck in runner inner surface and not enter product, it is to avoid cooling is solid The small sizing material changed directly is flushed to the situation of product surface, so as to avoid loose or flow liner problem generation, product appearance quality It is higher；The less cast gate in other cross section can also accelerate sizing material flow velocity, the effect with shear thinning sizing material.

Further, injection mold 1 is symmetrically arranged with two cast gates 3, makes the internal stress both sides of shaped article symmetrical, The deformation of product both sides is consistent, does not influence product appearance.

Assemble the side wall of recess 23 and be provided with locating surface 231 corresponding with preceding dampening assembly profile so that front fork and front mudguard Between form chimeric position, the lateral communication of cast gate 3 to locating surface 231, the lateral communication of cast gate 3 to the centre of locating surface 231, cast gate Scar will produce the center in chimeric position, so that the hidden effect being optimal.

And cast gate 3 can use the cast gate manufacture craft of tapping type type, it is vertical that cast gate 3 extends formation down along assembling recess 23 Injection molding channel 31, the vertical end of injection molding channel 31 extends laterally the horizontal injection molding channel 32 connected with locating surface 231, during injection Solution is flushed to horizontal injection molding channel 32 from the first vertical stream of injection molding channel 31, and upper recirculation is to die cavity sideways, and runner is apart from short, flowing Property it is good, the internal stress after plastic parts moulding is small, and product reliability is high, while the machining of mould is easy, and manufacturing cost is low.

Reference picture 6, further, can make the lateral communication of cast gate 3 to the handing-over of locating surface 231 and extension interior sidewall surface Place, makes cast gate scar produce on the corner formed in junction, fractures and can thoroughly remove manually after shaping cooling, operation is more Simplicity, it is disguised more preferable.

After the technical solution of the utility model, by the way that cast gate is arranged on into sightless portion after front mudguard is installed Position, can fully cover after assembling because of the open defect that injection is produced, and the internal stress after plastic parts moulding is small, injection effect is good, improves Application qualification rate, overall appearance quality is high.

Claims

1. provided with correspondence in a kind of injection mold of plate of front splash guard of motorcycle, including injection mold (1), the injection mold (1) The die cavity (2) of front mudguard shape, the mould (1) is provided with the cast gate (3) for connecting the die cavity (2), it is characterised in that：Institute Stating die cavity (2) includes master shield chamber (21) and the preceding damping backplate chamber (22) positioned at master shield chamber (21) the front end both sides, institute The assembling recess (23) coordinated with motorcycle front damper component is formed before stating on rear side of damping backplate chamber (22), the cast gate (3) is even Pass to assembling recess (23) side wall.

2. injection mold according to claim 1, it is characterised in that：The cast gate (3) assembles recess (23) side to described Flow channel cross-section product between wall gradually increases.

3. injection mold according to claim 1, it is characterised in that：The injection mold (1) is symmetrically arranged with two institutes State cast gate (3).

4. the injection mold according to claim 1 or 2 or 3, it is characterised in that：It is described assembling recess (23) side wall be provided with The locating surface (231) of the motorcycle front damper component contoured fit, cast gate (3) lateral communication to the locating surface (231)。

5. injection mold according to claim 4, it is characterised in that：The cast gate (3) assembles recess (23) court along described Lower extension forms vertical injection molding channel (31), and vertical injection molding channel (31) end has been extended laterally and the locating surface (231) the horizontal injection molding channel (32) of connection.

6. injection mold according to claim 4, it is characterised in that：Cast gate (3) lateral communication is to the locating surface (231) with the junction of preceding damping backplate chamber (22) the inwall wall.