CN208343321U

CN208343321U - Automobile front reflecting mirror BMC injecting molding die

Info

Publication number: CN208343321U
Application number: CN201820504237.7U
Authority: CN
Inventors: 王强; 王轲韬; 王灵强; 张浪; 李琪; 应镓檠
Original assignee: Zhejiang Yongming Mold Ltd By Share Ltd
Current assignee: Zhejiang Yongming Mold Ltd By Share Ltd
Priority date: 2018-04-10
Filing date: 2018-04-10
Publication date: 2019-01-08
Anticipated expiration: 2028-04-10

Abstract

The utility model belongs to the technical field of automobile lamp manufacturing, in particular to a BMC injection molding die for automobile headlight reflectors. The utility model comprises a mounting plate, a movable template and a fixed template. The fixed template is provided with an injection port, a mold core component is arranged between the movable template and the fixed template, and the mold core component is movably connected with the movable template and the fixed template. A heater mounting plate is fixedly connected to the side of the template and the fixed template away from the mold core assembly, one end of the heater is fixedly connected to the heater mounting plate, and the other end extends to the inside of the movable template or the fixed template. The utility model can use a heater to heat to 200-220° C. during the molding process, so that the thermosetting material BMC can be cured and formed. Compared with the method of pressing molding in the prior art, the utility model has higher production efficiency. The ejection device can use the thread to control the ejection speed. Compared with the direct ejection method in the prior art, the problem of damage to the injection molded product by the ejector rod is effectively prevented.

Description

Automobile front reflecting mirror BMC injecting molding die

Technical field

The utility model belongs to automobile lamp manufacturing technology field more particularly to a kind of automobile front reflecting mirror BMC Injecting molding die.

Background technique

In recent years, automobile industry quickly growing in China produces the reflecting mirror material of car headlamp substantially at present For BMC material, BMC material is a kind of thermosetting material, it is mixed with various inert fill materials, multifilament reinforcing material, urges Agent, stabilizer and pigment, form a kind of composite material for compression moulding gluing, existing BMC material in injection molding mostly By the way of pressurization, but the molding cycle of this molding mode is long, and production efficiency is low.

For example, Chinese invention patent application discloses a kind of plastic injection-pressing compound forming process and its mold [Shen Please number: 200410051751.2], which comprises the following steps that (1) plastic raw materials heat modeling in injector barrel Change；(2) under the effect of two-stage die closing die opening mechanism, the molding of mold level-one forms near closed hollow ring；(3) under injection pressure effect, Molten plastic is sprayed from the nozzle of barrel front end, and the near closed hollow ring of mold, realization type chamber quantitative filling are injected into through running gate system； (4) type chamber heating and thermal insulation makes plastic melt be maintained at forming temperature, meanwhile, injection pressure maintains cavity pressure to reach molding Pressure, mould secondary molding, further decreases distance between punch-pin and die surface, realizes compression moulding；(5) mold cavity It begins to cool, so that plastic melt temperature is dropped to softening point hereinafter, completing cooling and shaping；(6) it is acted in two-stage die closing die opening mechanism Under, mold cavity is opened along die joint；Under that action of the demoulding mechanism, plastic demoulding is completed.

The patent application is the logical molding mode using compression moulding, therefore that there are molding cycles is long, and production efficiency is low to ask Topic.

Utility model content

The purpose of this utility model is to be injection moulded in view of the above-mentioned problems, providing a kind of automobile front reflecting mirror with BMC Mold.

In order to achieve the above objectives, the utility model uses following technical proposal:

A kind of automobile front reflecting mirror BMC injecting molding die, successively include mounting plate, moving template and solid plate, There is injection hole on solid plate, mode component is equipped between the moving template and solid plate, and mode component is with moving template and calmly Template flexible connection, moving template and solid plate are fixedly connected with having heaters mounting plate, heater far from mode component on one side One end be fixedly connected on heater mounting plate, the other end extends to inside moving template or solid plate.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the heater mounting plate and moving template It is equipped with heating chamber between solid plate, further includes the electrical communication mouth for installing external cord, the electrical communication mouth One end be connected to heating chamber, the other end penetrates through the side wall of solid plate or moving template.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the mode component includes being located at cover half Cover half mode in plate and the dynamic model mode in moving template form molding chamber, position between cover half mode and dynamic model mode It is connected to injection hole in injection molding channel one end in cover half mode, other end connection molding chamber, one end of the heater extends To cover half mode or dynamic model mode.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the mode component further includes symmetrically setting The die opening mechanism in cover half mode and dynamic model mode two sides is set, the output shaft of the die opening mechanism is pressed on cover half mode surface.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, gone back between the mounting plate and moving template Holding fixture block equipped with ejecting mechanism and fixed setting on a mounting board, the holding fixture block are symmetricly set on ejecting mechanism two sides And fit with the side of ejecting mechanism, one end of the ejecting mechanism is pressed on mounting plate, and the other end extends to dynamic model mould The upper surface of benevolence.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the ejecting mechanism includes and mounting plate The fixed plate being fixedly connected, the liftout plate and knock-pin that are pressed in fixed plate, described knock-pin one end are fixedly connected on ejection On plate, the other end extends to the upper surface of dynamic model mode, and the side of fixed plate and liftout plate is bonded and liftout plate with fixture block is kept Opposite fixture block can be kept to slide along the direction of vertical mounting plate.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the ejecting mechanism further include one end with Mounting plate rotation connection, the other end penetrate through the ejection control-rod of fixed plate and liftout plate, the ejection control-rod side wall protrusion There is fixed convex eaves, the end surface of fixed convex eaves is bonded with mounting plate, and another end surfaces are bonded with fixed plate, and control casing is arranged On ejection control-rod, and the screw thread threaded with ejection control-rod surface, the control casing and liftout plate perpendicular to It is moved synchronously on the direction of mounting plate.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the mounting plate, moving template and solid plate On be fixedly connected to several and hang modular ring.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, the heater mounting plate is far from mode The side of component is additionally provided with heat insulating board, has the injection molding being connected to injection hole logical on the heat insulating board of solid plate Hole, the axial line for being molded through-hole are overlapped with the axial line of injection hole.

In above-mentioned automobile front reflecting mirror in BMC injecting molding die, it is fixedly installed on the heat insulating board There is injection molding positioning ring, the axial line of the injection molding positioning ring is overlapped with the axial line of injection molding through-hole.

Compared with prior art, utility model has the advantages that

1, the utility model is heated to 200-220 DEG C using heater in forming process, so that thermosetting material BMC Curing molding, the middle method using extrusion forming has higher production efficiency compared with the prior art.

2, the liftout attachment of the utility model can directly be ejected compared to the prior art using screw thread control ejection speed Pushing method effectively prevents the problem of knock-pin damages injecting products generation.

Detailed description of the invention

Fig. 1 is the explosive view of the utility model；

Fig. 2 is the sectional view of the utility model；

Fig. 3 is the sectional view of the utility model part-structure；

Fig. 4 is the explosive view of the utility model part-structure；

In figure: mounting plate 1, moving template 2, solid plate 3, mode component 4, heater mounting plate 5, heater 6, heating chamber 7, electrical communication mouth 8, heat insulating board 9, ejecting mechanism 10, holding fixture block 11, injection hole 31, cover half mode 41, dynamic model mode 42, chamber 43, injection molding channel 44, die opening mechanism 45, injection molding through-hole 91, injection molding positioning ring 92, fixed plate 101, liftout plate are formed 102, knock-pin 103, ejection control-rod 104, fixed convex eaves 105, control casing 106, screw thread 107.

Specific embodiment

The utility model is described in more detail with reference to the accompanying drawings and detailed description.

As shown in Fig. 2, a kind of automobile front reflecting mirror BMC injecting molding die, successively includes mounting plate 1, dynamic model Plate 2 and solid plate 3 have injection hole 31 on solid plate 3, and mode component 4, and mould are equipped between the moving template 2 and solid plate 3 Benevolence component 4 is flexibly connected with moving template 2 and solid plate 3, and the one side of moving template 2 and solid plate 3 far from mode component 4 is fixed Having heaters mounting plate 5 is connected, one end of heater 6 is fixedly connected on heater mounting plate 5, and the other end extends to moving template 2 or solid plate 3 inside.

The utility model, in use, moving template 2 and solid plate 3 mold, the BMC of molten condition passes through note from injection molding machine Modeling mouth 31 is injected into mode component 4, in forming process, is added moving template 2, solid plate 3 and mode component 4 using heater 6 Heat to 200-220 DEG C so that BMC be heated curing molding, therefore the utility model compared with the prior art in using extrusion forming Method has higher production efficiency.

This headlight reflecting mirror injecting molding die successively includes mounting plate 1, moving template 2 and solid plate 3, for producing The molding mode component 4 of product is movably arranged between moving template 2 and solid plate 3, is connected to inside injection hole 31 and mode component 4, Moving template 2 and solid plate 3 are fixedly connected with having heaters mounting plate 5 far from mode component 4 on one side, and one end of heater 6 is solid Surely it is connected on heater mounting plate 5, the other end extends to inside moving template 2 or solid plate 3, for moving template 2, solid plate 3 and mode component 4 heated, in use, moving template 2 and solid plate 3 mold, the BMC of molten condition leads to from injection molding machine It crosses injection hole 31 to be injected into mode component 4, in forming process, using heater 6 by moving template 2, solid plate 3 and mode component 4 are heated to 200-220 DEG C, the curing molding so that BMC is heated, therefore the utility model is middle using extrusion forming compared with the prior art Method have higher production efficiency.

Specifically, the mode component 4 includes cover half mode 41 in the solid plate 3 and in moving template 2 Dynamic model mode 42, between cover half mode 41 and dynamic model mode 42 formed molding chamber 43, injecting products in molding chamber 43 at Type, 44 one end of injection molding channel in cover half mode 41 are connected to injection hole 31, other end connection molding chamber 43, molten condition BMC from via in injection hole 31,44 injection moulding chamber 43 of injection molding channel, one end of the heater 6 extends in injection molding machine To cover half mode 41 or dynamic model mode 42, the mode component 4 further includes being symmetricly set on cover half mode 41 and dynamic model mould The die opening mechanism 45 of 42 two sides of benevolence, the output shaft of the die opening mechanism 45 are pressed on 41 surface of cover half mode, wherein die opening mechanism 45 can be oil cylinder, be also possible to cylinder, and when die sinking, starting die opening mechanism 45 can make cover half mode 41 and dynamic model mode 42 mutual Separation is ready to open molding chamber 43 for the ejection of product.

As shown in Figure 1, being equipped with heating chamber 7 between the heater mounting plate 5 and moving template 2 and solid plate 3, also wrap The electrical communication mouth 8 for installing external cord is included, one end of the electrical communication mouth 8 is connected to heating chamber 7, other end perforation The side wall of solid plate 3 or moving template 2, external electrical are directed into heating chamber 7 by electrical communication mouth 8, keep heater 6 logical Electricity fever.

In conjunction with shown in Fig. 3 and Fig. 4, it is additionally provided with ejecting mechanism 10 between the mounting plate 1 and moving template 2 and is fixed at Holding fixture block 11 on mounting plate 1, the holding fixture block 11 be symmetricly set on 10 two sides of ejecting mechanism and with ejecting mechanism 10 Side fits, and one end of the ejecting mechanism 10 is pressed on mounting plate 1, and the other end extends to the upper table of dynamic model mode 42 Face, the ejecting mechanism 10 include the fixed plate 101 being fixedly connected with mounting plate 1, the liftout plate being pressed in fixed plate 101 102 and knock-pin 103, described 103 one end of knock-pin be fixedly connected on liftout plate 102, the other end extends to dynamic model mode 42 Upper surface, the side of fixed plate 101 and liftout plate 102 with keep that fixture block 11 be bonded and liftout plate 102 can opposite holding fixture block 11 slide along the direction of vertical mounting plate 1, and the ejecting mechanism 10 further includes that one end and mounting plate 1 are rotatablely connected, and the other end passes through Across the ejection control-rod 104 of fixed plate 101 and liftout plate 102,104 side wall of ejection control-rod is protruding with fixed convex eaves 105, the end surface of fixed convex eaves 105 is bonded with mounting plate 1, and another end surfaces are bonded with fixed plate 101, controls casing 106 It is set on ejection control-rod 104, and 107 threaded of screw thread with ejection 104 surface of control-rod, the control casing 106 It is moved synchronously on the direction perpendicular to mounting plate 1 with liftout plate 102.

Ejecting mechanism 10 is for ejecting product after molding, including being located at 101 He of fixed plate kept between fixture block 11 Liftout plate 102, fixed plate 101 are fixed on mounting plate 1, and 103 one end of knock-pin is fixed on liftout plate 102, and the other end extends It is moved synchronously to the upper surface of dynamic model mode 42 to eject shaped article, knock-pin 103 after being opened with liftout plate 102, therefore If the ejection speed of knock-pin 103 need to be controlled, it is only necessary to control the ejection speed of liftout plate 102, the utility model utilizes table Face has the control ejection speed of ejection control-rod 104 of screw thread 107, and specifically, ejection control-rod 104 and mounting plate 1 rotate Connection, side wall are protruding with fixed convex eaves 105, and fixed plate 101 is pressed on fixed convex 105 surface of eaves to prevent ejection control-rod 104 It is moved along axis direction, it is preferable that fixed convex eaves 105 is annular in shape, can make to eject control-rod 104 in this way perpendicular to mounting plate 1 Direction on it is fixed, ejection 104 surface of control-rod is bolted with control casing 106, controls casing 106 with liftout plate 102 vertical It is moved synchronously on the direction of mounting plate 1, therefore when rotation control rod 104, drive lower edge control of the control casing 106 in screw thread 107 The direction of axis line of bar 104 processed moves, so that liftout plate 102 and knock-pin 103 is driven to move synchronously, therefore the utility model Liftout attachment 10 can control the ejection speed of knock-pin 103, the ejection side directly ejected compared to the prior art using screw thread 107 Formula effectively prevents the problem of knock-pin 103 damages injecting products generation.

The utility model moves synchronously realization control casing 106 with liftout plate 102 on the direction perpendicular to mounting plate 1 Specific implementation be not construed as limiting, can control casing 106 be fixedly connected with liftout plate 102 by way of realize, can also To lift platform by as shown in Fig. 3, controlling to be protruding on the outside of casing 106, liftout plate 102, which is pressed on, lifts platform surface Mode is realized.

As shown in Fig. 2, being fixedly connected to several on the mounting plate 1, moving template 2 and solid plate 3 hangs modular ring 12, with Facilitate the transport of each component of mold.

As shown in Fig. 2, the heater mounting plate 5 is additionally provided with heat insulating board 9 far from the side of mode component 4, it is heat-insulated Insulation board 9 can play the role of heat preservation to mould inside, and heat-insulated effect can be played to mold exterior, prevent user from scalding Wound has the injection molding through-hole 91 being connected to injection hole 31 on the heat insulating board 9 of solid plate 3, is molded the axle center of through-hole 91 Line is overlapped with the axial line of injection hole 31, and injection molding positioning ring 92, the injection molding positioning are fixedly installed on the heat insulating board 9 The axial line of ring 92 is overlapped with the axial line of injection molding through-hole 91, and injection molding positioning ring 92 can realize that injection molding machine fast and accurately positions.

The working principle of the utility model is: in use, moving template 2 and solid plate 3 mold, the BMC of molten condition is from note It in forming process, will be moved using heater 6 by injection hole 31 via in 44 injection moulding chamber 43 of injection molding channel in molding machine Template 2, solid plate 3 and mode component 4 are heated to 200-220 DEG C, and the curing molding so that BMC is heated after molding, starts die-sinking machine Structure 45 is separated from each other cover half mode 41 and dynamic model mode 42, to open molding chamber 43, then drives 104 turns of control-rod of ejection It is dynamic so that knock-pin 103 ejects product, complete a production process, therefore the utility model compared with the prior art in use The method of extrusion forming has higher production efficiency.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although be used more herein mounting plate 1, moving template 2, solid plate 3, mode component 4, heater mounting plate 5, Heater 6, electrical communication mouth 8, heat insulating board 9, ejecting mechanism 10, keeps fixture block 11, injection hole 31, cover half at heating chamber 7 Mode 41, dynamic model mode 42, molding chamber 43, injection molding channel 44, die opening mechanism 45, injection molding through-hole 91, injection molding positioning ring 92, Fixed plate 101, liftout plate 102, knock-pin 103, ejection control-rod 104, fixed convex eaves 105, control casing 106, screw thread 107 etc. Term, but it does not exclude the possibility of using other terms.The use of these items is only for be more convenient to describe and explain The essence of the utility model；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.

Claims

1. A BMC injection molding mold for an automobile headlight reflector, comprising a mounting plate (1), a movable template (2) and a fixed template (3) in turn, and the fixed template (3) is provided with an injection port (31), which is It is characterized in that: a mold core assembly (4) is arranged between the movable template (2) and the fixed template (3), and the mold core assembly (4) is movably connected with the movable template (2) and the fixed template (3), and the movable template (3). A heater mounting plate (5) is fixedly connected to the side of the template (2) and the fixed template (3) away from the mold core assembly (4), and one end of the heater (6) is fixedly connected to the heater mounting plate (5), The other end extends to the inside of the movable template (2) or the fixed template (3).

2. The BMC injection moulding mould for automobile headlamp reflector as claimed in claim 1, characterized in that: the heater mounting plate (5), the movable template (2) and the fixed template (3) are all provided with There is a heating chamber (7), and also includes an electrical communication port (8) for installing external wires, one end of the electrical communication port (8) is connected to the heating chamber (7), and the other end is connected to the fixed template (3) or the side wall of the movable template (2).

3. The BMC injection molding mold for automobile headlight reflector as claimed in claim 1, characterized in that: the mold core assembly (4) comprises a fixed mold core (41) located in a fixed platen (3) and a fixed mold core (41) and A movable die core (42) located in the movable die plate (2), a forming cavity (43) is formed between the fixed die core (41) and the movable die core (42), and is located in the fixed die core (41) One end of the injection flow channel (44) is connected to the injection port (31), the other end is connected to the molding chamber (43), and one end of the heater (6) extends to the fixed mold core (41) or the movable mold core (42). )internal.

4. The BMC injection molding mold for automobile headlight reflector as claimed in claim 3, characterized in that: the mold core assembly (4) further comprises a fixed mold core (41) and a movable mold core that are symmetrically arranged on the fixed mold core (41) (42) The mold opening mechanisms (45) on both sides, the output shafts of the mold opening mechanisms (45) are set on the surface of the fixed mold core (41).

5. The BMC injection molding mold for automobile headlamp reflector as claimed in claim 3, characterized in that: between the mounting plate (1) and the movable template (2), an ejector mechanism (10) and a holding clamp block (11) fixedly arranged on the mounting plate (1), the holding clamp block (11) is symmetrically arranged on both sides of the ejection mechanism (10) and abuts with the side surface of the ejection mechanism (10), One end of the ejection mechanism (10) is pressed on the mounting plate (1), and the other end extends to the upper surface of the movable mold core (42).

6. The BMC injection molding mold for automotive headlamp reflectors according to claim 5, wherein the ejection mechanism (10) comprises a fixing plate (101) fixedly connected with the mounting plate (1), a pressure An ejector plate (102) and an ejector rod (103) arranged on the fixed plate (101), one end of the ejector rod (103) is fixedly connected to the ejector plate (102), and the other end extends to the movable die The upper surface of the kernel (42), the side surfaces of the fixing plate (101) and the ejecting plate (102) are in contact with the retaining clip (11), and the ejecting plate (102) can be vertically installed relative to the retaining clip (11). Slide in the direction of (1).

7. The BMC injection molding mold for automobile headlamp reflector as claimed in claim 6, wherein the ejection mechanism (10) further comprises one end that is rotatably connected to the mounting plate (1), and the other end that penetrates through the fixing plate (1). The ejection control rod (104) of the plate (101) and the ejection plate (102), the side wall of the ejection control rod (104) is protruded with a fixed eave (105), and one end surface of the fixed eave (105) is provided Fitted with the mounting plate (1), the other end surface is fitted with the fixing plate (101), the control sleeve (106) is sleeved on the ejection control rod (104), and is connected to the surface of the ejection control rod (104). The threads (107) are screwed together, and the control sleeve (106) and the ejector plate (102) move synchronously in a direction perpendicular to the mounting plate (1).

8. The BMC injection moulding mould for automobile headlight reflector as claimed in claim 1, characterized in that: the mounting plate (1), the movable template (2) and the fixed template (3) are all fixedly connected with several A die ring (12).

9. The BMC injection molding mold for automobile headlight reflector as claimed in claim 1, wherein the heater mounting plate (5) is further provided with heat insulation on the side away from the mold core assembly (4). The plate (9), the thermal insulation plate (9) close to the fixed template (3) has an injection through hole (91) communicating with the injection port (31), and the axis of the injection through hole (91) is connected to the injection port ( 31) The axis lines coincide.

10. The BMC injection molding mold for automotive headlight reflectors according to claim 9, wherein an injection molding positioning ring (92) is fixedly arranged on the heat insulation board (9), and the injection molding positioning ring is The axis line of (92) coincides with the axis line of the injection through hole (91).