CN209095942U - A kind of automobile tail light injection mold - Google Patents

Abstract

The utility model relates to injection mold technologies, and disclose a kind of automobile tail light injection mold, including Bottom clamp plate and top clamping plate, the both ends of the Bottom clamp plate top surface are fixedly installed with cushion block, the quantity of cushion block is two, it is fixedly installed with support plate at the top of two cushion blocks, the push plate guide post being fixedly installed between two cushion blocks between support plate and Bottom clamp plate.The automobile tail light injection mold, pass through the heat effect of resistance wire, it can guarantee that the melt flowed into through cast gate will not generate viscous flow phenomenon during entering type chamber by runner, when avoiding melt mold filling, the material of front end condenses contraction once touching the surface of type chamber quickly, and later melt distending moves on continuous the problem of alternately making stream form surface shake line in advance of process with the cold burden shunk, it ensure that automobile tail light injection-molded finished quality and service life, substantially increase the practicability of the injection mold.

Description

A kind of automobile tail light injection mold

Technical field

The utility model relates to injection mold technology, specially a kind of automobile tail light injection mold.

Background technique

Injection mold is a kind of tool for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension Tool, injection molding are a kind of processing methods used when producing certain complex-shaped components in batches, refer specifically to melt heated Plastics die cavity is injected by injection molding machine high pressure, after cooling and solidifying, obtain formed products, the field that injection mold uses is very wide It is general, it just needs to use injection mold in the manufacturing process of automobile tail light.

Existing automobile tail light injection mold does not heat the melt in runner, only cast gate to melt into Row heating, due to the cooling effect of melt, in injection moulding process, melt viscosity it is excessive and in the form of viscous flow when mold filling, front end Material condenses contraction once touching the surface of type chamber quickly, and later melt distending is moved on the cold burden shunk The continuous of process alternately makes stream form shake line in surface in advance, not only affects the beauty of automobile tail light injection-molded item, The quality of automobile tail light injection-molded item is also affected, in addition, existing injection mold is after automobile tail light product shaping and demoulding, meeting Because the plastics of incomplete hardening by cooling discharged under the action of internal pressure gas expansion cause the swelling of automobile tail light injection-molded item and It is bubbled, the serious quality and service life for affecting automobile tail light.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of automobile tail light injection mold, and having prevents melt The advantages of remaining in a standstill and the intracavitary melt of rapid cooling type in runner, guaranteeing product quality, solves existing automobile tail light note Mould does not heat the melt in runner, only heats in cast gate to melt, and cooling due to melt makees With in injection moulding process, melt viscosity is excessive and in the form of viscous flow when mold filling, and the material of front end is once touching the surface of type chamber very Fast condensation shrinks, and later melt distending moves on the continuous of process with the cold burden shunk and alternately makes stream preceding Shake line in surface is formd in, is not only affected the beauty of automobile tail light injection-molded item, is also affected automobile tail light injection-molded item Quality, in addition, existing injection mold is after automobile tail light product shaping and demoulding, can because incomplete hardening by cooling plastics Gas expansion is discharged under the action of internal pressure causes the swelling of automobile tail light injection-molded item and bubbling, it is serious to affect automobile tail light Quality and service life the problem of.

The utility model provides the following technical solutions: a kind of automobile tail light injection mold, including Bottom clamp plate and cover half seat Plate, the both ends of the Bottom clamp plate top surface are fixedly installed with cushion block, and the quantity of the cushion block is two, two cushion blocks Top is fixedly installed with support plate, the push plate being fixedly installed between two cushion blocks between the support plate and Bottom clamp plate Guide post, the middle part movable sleeve of the Bottom clamp plate are connected to injection molding machine mandril, and Bottom clamp plate is run through on the top of the injection molding machine mandril And the outside that extends at the top of Bottom clamp plate and it being fixedly connected with push plate, the left end of the push plate and the outer surface of push plate guide post are living It is dynamic to be socketed, it is fixedly installed with push rod, the top of the push rod and the middle part pivot bush unit of support plate at the top of the push plate, it is described Push rod runs through the middle part of support plate and extends to the outside of support plate top surface, is fixedly installed with punch-pin in the middle part of the support plate, The quantity of the punch-pin is two, and the bottom of the top clamping plate is fixedly installed with solid plate, and the inside of the solid plate opens up There is runner, the outer surface fixing sleeve of the runner is connected to resistance wire, and the front of the solid plate offers cooling water channel.

Preferably, shape forming cavity between the solid plate, support plate and punch-pin, the top of the type chamber and the fixed company of runner Logical, the bottom of the type chamber and the top movable of push rod connect, and the size in type bottom of chamber face is mutually fitted with the size of push rod top surface Match.

Preferably, the top of the type chamber through top clamping plate and extends to the outside at the top of top clamping plate and fixed connection There is cast gate, the cast gate is up-side down triangle.

Preferably, the right end of the support plate top surface is fixedly installed with limit guide post, the right side opening of the solid plate inner cavity Equipped with guide sleeve, the length scale of the length scale and guide sleeve of the limit guide pillars and bushes pivot bush unit and limit guide post is mutually fitted Match.

Preferably, the cooling water channel runs through solid plate and extends to the back side of solid plate, the quantity of the cooling water channel It is six, six cooling water channels are evenly distributed on around type chamber.

Preferably, the inside of six cooling water channels is fixedly installed with cooling tube, and the left end of the cooling tube is fixed It is communicated with water inlet pipe, the right end fixation of the cooling tube is communicated with outlet pipe.

Be compared with the prior art, the utility model have it is following the utility model has the advantages that

1, the automobile tail light injection mold is fixedly installed resistance wire by the outer surface in runner, utilizes resistance wire Heat effect effectively heats melt, prevents the cooling viscosity of melt from becoming larger, can guarantee that the melt flowed into through cast gate exists Viscous flow phenomenon will not be generated during entering type chamber by runner, avoid melt viscosity it is excessive and in the form of viscous flow mold filling When, the material of front end condenses contraction once touching the surface of type chamber quickly, and later melt distending is cold with what is shunk Material moves on continuous the problem of alternately making stream form surface shake line in advance of process, ensure that automobile tail light is molded into The quality and service life of product, substantially increase the practicability of the injection mold.

2, the automobile tail light injection mold, by six cooling water channels of setting and six cooling water channels are evenly distributed on type chamber Around, it is fixedly installed cooling tube in the inside of six cooling water channels, utilizes the phase between cooling tube, water inlet pipe and outlet pipe Mutually cooperation, after the completion of injection molding, opening water inlet pipe and outlet pipe can make full of cold water in cooling tube, can be effectively to type chamber Interior melt is cooled down, and the plastics for avoiding incomplete hardening by cooling discharge gas expansion under the action of internal pressure and cause automobile The problem of swelling of taillight injection-molded item and bubbling, substantially increase the quality of the injection mold.

Detailed description of the invention

Fig. 1 is schematic diagram of internal structure when the utility model molds；

Fig. 2 is schematic diagram of internal structure when the utility model demoulds；

Fig. 3 is the outside drawing of the utility model Fig. 1；

Fig. 4 is the side view of the utility model Fig. 3；

Fig. 5 is the structural schematic diagram of the utility model resistance wire.

In figure: 1, Bottom clamp plate；2, top clamping plate；3, cushion block；4, support plate；5, push plate guide post；6, injection molding machine mandril；7, Push plate；8, push rod；9, solid plate；10, runner；11, type chamber；12, resistance wire；13, punch-pin；14, guide sleeve；15, cast gate；16, it limits Position guide post；17, cooling water channel；18, cooling tube；19, water inlet pipe；20, outlet pipe.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5, a kind of automobile tail light injection mold, including Bottom clamp plate 1 and top clamping plate 2 are please referred to, Bottom clamp plate 1 pushes up The both ends in face are fixedly installed with cushion block 3, and the quantity of cushion block 3 is two, and the top of two cushion blocks 3 is fixedly installed with support plate 4, The right end of 4 top surface of support plate is fixedly installed with limit guide post 16, and the right side opening of 9 inner cavity of solid plate is equipped with guide sleeve 14, limits guide post 16 and 14 pivot bush unit of guide sleeve and limit guide post 16 length scale be adapted with the length scale of guide sleeve 14, ensure that dynamic model seat Plate 1 and top clamping plate 2 are more accurately docked in molding, are improved the leakproofness of the injection mold, be ensure that injection-molded item The top of quality, shape forming cavity 11 between solid plate 9, support plate 4 and punch-pin 13, type chamber 11 through top clamping plate 2 and extends to The outside at the top of top clamping plate 2 and it is fixed be communicated with cast gate 15, cast gate 15 is up-side down triangle, can make by melt by compared with Strong shearing and increase temperature, to reduce apparent viscosity to improve mobility, the top of type chamber 11 is connected to the fixation of runner 10, The bottom of type chamber 11 is connect with the top movable of push rod 8, and the size of 11 bottom surface of type chamber is adapted with the size of 8 top surface of push rod, branch The middle part of the push plate guide post 5 being fixedly installed between two cushion blocks 3 between fagging 4 and Bottom clamp plate 1, Bottom clamp plate 1 is living Dynamic to be socketed with injection molding machine mandril 6, the top of injection molding machine mandril 6 through Bottom clamp plate 1 and extends to the outside at the top of Bottom clamp plate 1 And it is fixedly connected with push plate 7, the top of the left end of push plate 7 and the outer surface pivot bush unit of push plate guide post 5, push plate 7 is fixedly mounted There are push rod 8, the top of push rod 8 and the middle part pivot bush unit of support plate 4, push rod 8 runs through the middle part of support plate 4 and extends to support The outside of 4 top surface of plate, the middle part of support plate 4 are fixedly installed with punch-pin 13, and the quantity of punch-pin 13 is two, the bottom of top clamping plate 2 Portion is fixedly installed with solid plate 9, and the inside of solid plate 9 offers runner 10, and the outer surface fixing sleeve of runner 10 is connected to resistance wire 12, using the heat effect of resistance wire 12, effectively melt is heated, prevents the cooling viscosity of melt from becoming larger, can guarantee The melt flowed into through cast gate 15 will not generate viscous flow phenomenon during entering type chamber 11 by runner 10, and solid plate 9 is just Face offers cooling water channel 17, and cooling water channel 17 runs through solid plate 9 and extends to the back side of solid plate 9, the number of cooling water channel 17 Amount is six, and six cooling water channels 17 are evenly distributed on around type chamber 11, and the inside of six cooling water channels 17 is fixedly mounted There is cooling tube 18, the left end of cooling tube 18 is fixed to be communicated with water inlet pipe 19, and the right end fixation of cooling tube 18 is communicated with outlet pipe 20, Using the mutual cooperation between cooling tube 18, water inlet pipe 19 and outlet pipe 20, after the completion of injection molding, water inlet pipe 19 and water outlet are opened Pipe 20 can make effectively cool down the melt in type chamber 11 in cooling tube 18 full of cold water, avoid not completely The plastics of hardening by cooling discharge the problem of gas expansion causes the swelling of automobile tail light injection-molded item and is bubbled under the action of internal pressure, Substantially increase the quality of the injection mold.

When injection molding, Bottom clamp plate 1 and top clamping plate 2 are first closed into tight shape forming cavity 11, first guarantee that resistance wire 12 is heated to one After determining temperature, then melt is molded into runner 10 from cast gate 15, made by the melt of runner 10 by the heating of resistance wire 12 Entered in type chamber 11 with rear, after the completion of injection molding, opens simultaneously water inlet pipe 19 and outlet pipe 20, keep 18 internal circulation flow of cooling tube cold Water carrys out the cooling of melt in accelerating type chamber 11, and after cooling, by the effect of injection molding machine mandril 6, injection molding manufactured goods are released ?.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of automobile tail light injection mold, including Bottom clamp plate (1) and top clamping plate (2), it is characterised in that: the dynamic model seat The both ends of plate (1) top surface are fixedly installed with cushion block (3), and the quantity of the cushion block (3) is two, two cushion blocks (3) Top is fixedly installed with support plate (4), is fixedly installed between the support plate (4) and Bottom clamp plate (1) positioned at two cushion blocks (3) the middle part movable sleeve of the push plate guide post (5) between, the Bottom clamp plate (1) is connected to injection molding machine mandril (6), the injection molding machine The top of mandril (6) is through Bottom clamp plate (1) and the outside that extends at the top of Bottom clamp plate (1) and is fixedly connected with push plate (7), The outer surface pivot bush unit of the left end of the push plate (7) and push plate guide post (5) is fixedly installed at the top of the push plate (7) and pushes away Bar (8), the top of the push rod (8) and the middle part pivot bush unit of support plate (4), the push rod (8) is in support plate (4) Portion and the outside for extending to support plate (4) top surface are fixedly installed with punch-pin (13), the punch-pin in the middle part of the support plate (4) (13) quantity is two, and the bottom of the top clamping plate (2) is fixedly installed with solid plate (9), the inside of the solid plate (9) It offers runner (10), the outer surface fixing sleeve of the runner (10) is connected to resistance wire (12), and the front of the solid plate (9) is opened Equipped with cooling water channel (17).

2. a kind of automobile tail light injection mold according to claim 1, it is characterised in that: the solid plate (9), support plate (4) top of the shape forming cavity (11) between punch-pin (13), the type chamber (11) is connected to runner (10) fixation, the type chamber (11) bottom is connect with the top movable of push rod (8), the size and the size phase of push rod (8) top surface of type chamber (11) bottom surface Adaptation.

3. a kind of automobile tail light injection mold according to claim 2, it is characterised in that: passed through at the top of the type chamber (11) It wears top clamping plate (2) and the outside that extends at the top of top clamping plate (2) and fixation is communicated with cast gate (15), the cast gate (15) is Up-side down triangle.

4. a kind of automobile tail light injection mold according to claim 1, it is characterised in that: support plate (4) top surface Right end is fixedly installed with limit guide post (16), and the right side opening of solid plate (9) inner cavity is equipped with guide sleeve (14), the limit guide post (16) and guide sleeve (14) pivot bush unit and limit guide post (16) length scale be adapted with the length scale of guide sleeve (14).

5. a kind of automobile tail light injection mold according to claim 1, it is characterised in that: the cooling water channel (17) is run through Solid plate (9) and the back side for extending to solid plate (9), the quantity of the cooling water channel (17) are six, six cooling waters Road (17) is evenly distributed on around type chamber (11).

6. a kind of automobile tail light injection mold according to claim 5, it is characterised in that: six cooling water channels (17) Inside be fixedly installed with cooling tube (18), the fixation of the left end of the cooling tube (18) is communicated with water inlet pipe (19), described cold But the right end fixation for managing (18) is communicated with outlet pipe (20).