CN212636383U - Three-color injection mold for automobile parts - Google Patents

Abstract

The utility model provides a three-colour injection mold for auto parts, include the mould and with last mould matched with lower mould, it sets up first pipe of moulding plastics to go up the mould left end, the pipe is moulded plastics to lower mould left end installation second, the lower mould right-hand member sets up the third pipe of moulding plastics, first mould one side annular portion of moulding plastics the pipe be close to mould one side annular portion of the second mould and the third mould a plastics the pipe and be close to the equal fixed connection heating mechanism of lower mould one side annular portion, heating mechanism is including thermal-insulated shell, the inside fixed connection heat-conducting tube of thermal-insulated shell, the heat-conducting tube annular outside sets up spiral heating rod and is in thermal-insulated shell. The utility model provides a three-colour injection mold for auto parts has and utilizes the spiral heating rod to produce the heat to make heat conduction section of thick bamboo temperature rise, make and heat the intraductal raw materials that dissolve of moulding plastics, effectively prevent to dissolve the raw materials and take place to solidify at the mouth of moulding plastics, convenient to use promotes product quality.

Description

Three-color injection mold for automobile parts

Technical Field

The utility model relates to an injection mold field especially relates to a three-colour injection mold for auto parts.

Background

The vehicle is a vehicle that has its own power to drive and can be driven by motor without the need of rail or electric power installation. In the automobile production, the automobile parts divide into metal parts and plastic parts, and plastic parts often has dichroism, trichrome or polychrome, and wherein the trichrome part often need carry out the production of moulding plastics, in the production of moulding plastics, need utilize trichrome injection mold, and injection mold is the instrument of a production plastic goods, also is the instrument of giving plastic goods complete construction and accurate size.

In the process of moulding plastics, because of the mould temperature itself is lower, and it is higher to mould plastics and dissolve raw materials temperature, can produce great temperature difference in the mouth position of moulding plastics, then make the dissolved raw materials of moulding plastics can take place to solidify at the mouth of moulding plastics, and then can take place to solidify, can make the product produce gas line, burr or butt fusion phenomenon such as bad at the mouth of moulding plastics, product quality is poor, serious can take place to block up, influences normal work.

Therefore, it is necessary to provide a three-color injection mold for automobile parts to solve the above technical problems.

Disclosure of Invention

The utility model provides a three-colour injection mold for auto parts has solved and has produced great temperature difference in the mouth position of moulding plastics, makes to mould plastics then and dissolves the raw materials and can take place to solidify at the mouth of moulding plastics, and then can take place to solidify, can make the product produce gas line, burr or butt fusion phenomenon such as bad at the mouth of moulding plastics, and product quality is poor, and serious meeting takes place to block up, influences the problem of normal work.

For solving the technical problem, the utility model provides a pair of three-colour injection mold for auto parts, include and go up mould and with last mould matched with lower mould, it sets up first pipe and the last mould intercommunication of moulding plastics to go up the mould left end, lower mould left end installation second mould plastics pipe and lower mould intercommunication, the lower mould right-hand member sets up the third and moulds plastics pipe and third and mould plastics pipe and lower mould intercommunication, first mould plastics the pipe be close to mould one side annular portion the second mould plastics the pipe be close to lower mould one side annular portion and the third mould plastics the equal fixed connection heating mechanism of pipe one side annular portion, heating mechanism includes thermal-insulated shell, the inside fixed connection heat-conducting tube of thermal-insulated shell, the heat-conducting tube annular outside sets up spiral heating rod and spiral heating rod is in thermal-insulated shell.

Preferably, go up first apron of mould upper end fixed connection, go up the first heat-conducting plate of top fixed connection in the mould, set up first coiled pipe between first heat-conducting plate and the first apron, the exit of first coiled pipe all extends the mould.

Preferably, the lower end of the lower die is fixedly connected with a second cover plate, the bottom of the lower die is fixedly connected with a second heat-conducting plate, a second coiled pipe is arranged between the second heat-conducting plate and the second cover plate, and an inlet and an outlet of the second coiled pipe extend out of the lower die.

Preferably, set up first chamber and the second of moulding plastics and mould plastics the pipe intercommunication in the lower mould, go up the mould and set up and mould plastics chamber and the second of moulding plastics chamber matched with first and mould plastics the pipe intercommunication with first, the first mould is moulded the intracavity and is set up well cavity and the third of well hollow slab and mould plastics the pipe intercommunication.

Preferably, the left end of the lower die is provided with an exit, the exit is internally and hermetically connected with a first plug, and the right end of the first plug is fixedly connected with a hollow plate.

Preferably, a plurality of through holes with countersunk heads are formed in the annular mounting plate at equal intervals.

Preferably, the upper end and the lower end of the hollow plate are both provided with heating wires.

Preferably, the inlet of the first serpentine pipe is respectively communicated with the heating device and the cooling device through a three-phase joint, and the inlet of the second serpentine pipe is respectively communicated with the heating device and the cooling device through a three-phase joint.

Preferably, the outlets of the first coiled pipe and the second coiled pipe are connected with a recycling device.

Compared with the prior art, the utility model provides a three-colour injection mold for auto parts has following beneficial effect:

the utility model provides a three-colour injection mold for auto parts utilizes the spiral heating rod to produce the heat to make heat conduction section of thick bamboo temperature rise, make and heat the intraductal raw materials that dissolve of moulding plastics, effectively prevent to dissolve the raw materials and take place to solidify at the mouth of moulding plastics, convenient to use promotes product quality.

Utilize the intraductal heating agent that flows of first coiled pipe and second coiled pipe to make first heat-conducting plate and second heat-conducting plate temperature rise, realize the heating work, also can utilize the intraductal coolant that flows of first coiled pipe and second coiled pipe, thereby make first heat-conducting plate and second heat-conducting plate temperature reduction, realize cooling work, guarantee temperature uniformity.

The surfaces of the upper layer and the lower layer of the hollow injection molding plate of the hollow plate can be slightly melted by the heating wires, so that the middle layer and the upper layer and the lower layer are more tightly connected.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a three-color injection mold for automobile parts according to the present invention;

FIG. 2 is a schematic structural view of the heating mechanism shown in FIG. 1;

FIG. 3 is a cross-sectional view of the heating mechanism of FIG. 2;

FIG. 4 is a schematic view of the first serpentine tube of FIG. 1;

fig. 5 is a diagram of another embodiment of the three-color injection mold for automobile parts provided by the present invention.

Reference numbers in the figures: 1. the heat-insulating mould comprises an upper mould, 2, a first injection-molded pipe, 3, a second injection-molded pipe, 4, a lower mould, 5, a heating mechanism, 6, a third injection-molded pipe, 11, a first heat-conducting plate, 12, a first cover plate, 13, a first coiled pipe, 41, a second heat-conducting plate, 42, a second cover plate, 43, a second coiled pipe, 44, a hollow plate, 45, a first plug, 46, a second plug, 51, a heat-insulating shell, 52, a heat-conducting cylinder, 53, a spiral heating rod, 54, an annular mounting plate, 55 and a through hole with a countersunk head.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is an exemplary diagram; fig. 2 is a heating mechanism 5; fig. 3 is a sectional view of the heating mechanism 5; fig. 4 is a first serpentine tube 13; fig. 5 is another embodiment. Three-colour injection mold for auto parts, including last mould 1 and with last mould 1 matched with lower mould 4, it sets up first pipe 2 and the intercommunication of moulding plastics to go up mould 1 left end, 4 left ends installation second of lower mould moulds plastics pipe 3 and the second moulds plastics pipe 3 and the intercommunication of lower mould 4, 4 right-hand members of lower mould set up the third and mould plastics pipe 6 and the intercommunication of lower mould 4, first mould plastics pipe 2 is close to mould 1 one side annular portion, second mould plastics pipe 3 is close to 4 one side annular portions of lower mould and the equal fixed connection heating mechanism 5 of 4 one side annular portions of lower mould is close to third mould plastics pipe 6, heating mechanism 5 includes thermal-insulated shell 51, the inside fixed connection heat-conducting tube 52 of thermal-insulated shell 51, the heat-conducting tube 52 annular outside sets up spiral heating rod 53 and spiral heating rod 53 is in thermal-insulated shell 51.

Specifically, at first be connected spiral heating rod 53 with external power supply, at the transport solution in-process of moulding plastics, start spiral heating rod 53 through the controller, spiral heating rod 53 work produces the heat to make the heat conduction section of thick bamboo 52 temperature rise, make and to mould plastics intraductal dissolving the raw materials and heat, effectively prevent to dissolve the raw materials and take place to solidify at the mouth of moulding plastics, convenient to use promotes product quality.

Go up first apron 12 of mould 1 upper end fixed connection, go up the first heat-conducting plate 11 of top fixed connection in mould 1, set up first coiled pipe 13 between first heat-conducting plate 11 and the first apron 12, the exit of first coiled pipe 13 all extends and goes up mould 1, concretely, in moulding plastics, utilize heating equipment to carry the heating agent in first coiled pipe 13 and flow, thereby make first heat-conducting plate 11 temperature rise, heat the mould 1 inner chamber, also can utilize cooling equipment to carry the cooling agent in first coiled pipe 13 and flow, thereby make the temperature of first heat-conducting plate 11 reduce, cool off the mould 1 inner chamber, guarantee temperature uniformity.

The lower end of the lower die 4 is fixedly connected with a second cover plate 42, the bottom in the lower die 4 is fixedly connected with a second heat conducting plate 41, a second coiled pipe 43 is arranged between the second heat conducting plate 41 and the second cover plate 42, and the inlet and the outlet of the second coiled pipe 43 extend out of the lower die 4. specifically, in the injection molding process, a heating agent is conveyed into the second coiled pipe 43 by a heating device and flows, so that the temperature of the second heat conducting plate 41 is raised, the inner cavity of the lower die 4 is heated, and a cooling agent can also be conveyed into the second coiled pipe 43 by a cooling device and flows, so that the temperature of the second heat conducting plate 41 is lowered, the inner cavity of the lower die 4 is cooled, and the temperature uniformity.

Set up first injection molding chamber and second in the lower mould 4 and mould plastics 3 intercommunications, go up and set up in 1 and mould plastics chamber and second injection molding chamber and first injection molding pipe 2 intercommunications with first injection molding chamber matched with second, cavity and the third injection molding pipe 6 intercommunication of cavity board 44 and cavity board 44 in setting up in the first injection molding chamber, specifically, can utilize the second to mould plastics pipe 3 and mould plastics to the first intracavity of moulding plastics, can utilize first injection molding pipe 2 to mould plastics the intracavity to the second, can utilize the second to mould plastics pipe 3 and mould plastics to the cavity of cavity board 44, realize the three-colour work of moulding plastics.

An exit is formed in the left end of the lower die 4, the exit is internally and hermetically connected with a first plug 45, the right end of the first plug 45 is fixedly connected with the hollow plate 44, specifically, after the hollow cavity of the hollow plate 44 is molded, the first plug 45 can be detached from the exit, so that the hollow plate 44 is taken out of the lower die 4, as shown in fig. 5, a second plug 46 with the same specification as that of the first plug 45 is taken out and inserted into the exit again, and sealing is performed again, thereby facilitating subsequent work.

The annular mounting plate 54 is provided with a plurality of countersunk through holes 55 at equal intervals, and specifically, the annular mounting plate 54 can be mounted to the left end of the upper die 1 or the left and right ends of the lower die 4 by bolts and the countersunk through holes 55.

The upper and lower both ends of cavity board 44 all set up the heater strip, specifically, can slightly melt the surface of two-layer about the cavity injection moulding board of cavity board 44 through the heater strip, can make intermediate level and two-layer upper and lower be connected inseparabler.

The inlet of the first serpentine pipe 13 is communicated with the heating device and the cooling device through three-phase joints, respectively, and the inlet of the second serpentine pipe 43 is communicated with the heating device and the cooling device through three-phase joints, respectively, specifically, heating work or cooling work is realized.

The outlets of the first coiled pipe 13 and the second coiled pipe 43 are connected with a recycling device, and particularly, resources flowing in the first coiled pipe 13 and the second coiled pipe 43 can be recycled, so that the production cost is reduced.

The utility model provides a three-colour injection mold for auto parts's theory of operation as follows: firstly connecting the spiral heating rod 53 with an external power supply, then injecting an injection solution into the hollow cavity of the hollow plate 44 through the second injection pipe 3 to form a middle layer, in the conveying process, starting the spiral heating rod 53 through a controller, enabling the spiral heating rod 53 to work to generate heat, so as to enable the temperature of the heat conducting cylinder 52 to rise, heating the dissolved raw material in the injection pipe, effectively preventing the dissolved raw material from being solidified at an injection port, being convenient to use, improving the product quality, after the completion, detaching the first plug 45 from the exit port, taking out the hollow plate 44 from the lower die 4, taking out the second plug 46 with the same specification as the first plug 45 to be inserted into the exit port again, further carrying out resealing, then carrying out injection molding into the first injection cavity by utilizing the second injection pipe 3 and carrying out injection molding into the second injection cavity by utilizing the first injection pipe 2, thereby both sides are moulded plastics about the intermediate level of having moulded plastics, realize the three-colour work of moulding plastics, the in-process of moulding plastics is carried out in both sides about the intermediate level, also can utilize heating mechanism 5 to heat the mouth of moulding plastics, effectively prevent to mould plastics the mouth and take place to solidify, can flow the heating agent in first coiled pipe 13 and the second coiled pipe 43 in addition, thereby make first heat-conducting plate 11 and 41 temperature rising of second heat-conducting plate, heat upper and lower layer, also can utilize the coolant that flows in first coiled pipe 13 and the second coiled pipe 43, thereby make first heat-conducting plate 11 temperature reduction, cool off the inner chamber of last mould 1, guarantee temperature uniformity.

Compared with the prior art, the utility model provides a three-colour injection mold for auto parts has following beneficial effect:

can utilize spiral heating rod 53 to produce the heat to make the 52 temperature of heat conduction section of thick bamboo rise, make and to mould plastics intraductal dissolving the raw materials and heat, effectively prevent to dissolve the raw materials and take place to solidify at the mouth of moulding plastics, convenient to use promotes product quality.

The heating agent flows in the first coiled pipe 13 and the second coiled pipe 43, so that the temperature of the first heat conducting plate 11 and the temperature of the second heat conducting plate 41 are increased, the heating work is realized, the cooling agent flows in the first coiled pipe 13 and the second coiled pipe 43, the temperature of the first heat conducting plate 11 and the temperature of the second heat conducting plate 41 are reduced, the cooling work is realized, and the temperature uniformity is ensured.

The surfaces of the upper and lower layers of the hollow internal injection molded plate of the hollow plate 44 can be slightly melted by the heater wires, so that the intermediate layer and the upper and lower layers are more closely connected.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a three-colour injection mold for auto parts which characterized in that: including last mould and with last mould matched with lower mould, it sets up first pipe and the last mould intercommunication of moulding plastics to go up the mould left end, the pipe is moulded plastics to lower mould left end installation second and the second is moulded plastics and is managed and lower mould intercommunication, the lower mould right-hand member sets up the third and moulds plastics pipe and the third and mould a pipe and lower mould intercommunication, first mould plastics the pipe be close to mould one side annular portion the second mould is moulded plastics the pipe and is close to the equal fixed connection heating mechanism of lower mould one side annular portion and the third is moulded plastics the pipe and is close to lower mould one side annular portion, heating mechanism includes thermal-insulated shell, the inside fixed connection heat-conducting tube of thermal-insulated shell, the heat-conducting tube annular outside sets up spiral heating rod and spiral heating.

2. The three-color injection mold for automobile parts according to claim 1, characterized in that: go up mould upper end fixed connection first apron, go up the first heat-conducting plate of top fixed connection in the mould, set up first coiled pipe between first heat-conducting plate and the first apron, the exit of first coiled pipe all extends the mould.

3. The three-color injection mold for automobile parts according to claim 2, characterized in that: the lower end of the lower die is fixedly connected with a second cover plate, the bottom of the lower die is fixedly connected with a second heat-conducting plate, a second coiled pipe is arranged between the second heat-conducting plate and the second cover plate, and an inlet and an outlet of the second coiled pipe extend out of the lower die.

4. The three-color injection mold for automobile parts according to claim 1, characterized in that: set up first chamber and the second of moulding plastics and mould plastics the pipe intercommunication in the lower mould, go up the mould and set up and mould plastics chamber and the second of moulding plastics chamber matched with first and mould plastics chamber and first pipe intercommunication of moulding plastics, the well cavity and the third of well cavity that well cavity board and well board were set up in the first chamber of moulding plastics are moulded plastics and are managed the intercommunication.

5. The three-color injection mold for automobile parts according to claim 1, characterized in that: an exit is formed in the left end of the lower die, a first plug is connected in the exit in a sealing mode, and the right end of the first plug is fixedly connected with a hollow plate.

6. The three-color injection mold for automobile parts according to claim 1, characterized in that: the annular outer end of the outer side of the heat insulation shell is fixedly connected with an annular mounting plate, and a plurality of through holes with countersunk heads are formed in the annular mounting plate at equal intervals.

7. The three-color injection mold for automobile parts according to claim 5, characterized in that: and heating wires are arranged at the upper end and the lower end of the hollow plate.

8. The three-color injection mold for automobile parts according to claim 3, characterized in that: the inlet of the first coiled pipe is respectively communicated with the heating equipment and the cooling equipment through three-phase joints, and the inlet of the second coiled pipe is respectively communicated with the heating equipment and the cooling equipment through three-phase joints.

9. The three-color injection mold for automobile parts according to claim 2, characterized in that: and outlets of the first coiled pipe and the second coiled pipe are connected with a circulating recovery device.

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