CN212764493U

CN212764493U - Cooling mold for injection molding of plastic accessories of electric vehicle

Info

Publication number: CN212764493U
Application number: CN202020931752.0U
Authority: CN
Inventors: 张磊
Original assignee: Tianjin Yige Technology Co ltd
Current assignee: Tianjin Yige Technology Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-03-23
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to a cooling mold technical field, and a cooling mold that electric motor car plastic accessories was moulded plastics is disclosed, last mould and bed die including laminating each other, upward be provided with the die cavity in the mould, be provided with down the die cavity in the bed die, the outside of going up die cavity and bed die cavity is all fixed has cup jointed spiral coil, go up equal fixed mounting on the lateral wall of mould and bed die and have the cooler bin, fixed the inlaying has the refrigerator on the lateral wall of cooler bin, the inside fixed surface mounting of cooler bin has the circulating pump, the fixed intercommunication in output of circulating pump has the outlet pipe, and the other end of outlet pipe and spiral coil's bottom mounting intercommunication, the fixed intercommunication in top of spiral coil has the back flow, and the other end and the cooler bin of back flow. The utility model discloses make cooling die collect water cold and forced air cooling in an organic whole, effectively improved the cooling effect of mould to improve electric motor car plastic accessories's production efficiency.

Description

Cooling mold for injection molding of plastic accessories of electric vehicle

Technical Field

The utility model relates to a cooling mold technical field especially relates to a cooling mold that electric motor car plastic accessories was moulded plastics.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to shape an article, the tool being made up of various parts, and different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. Injection molds are a tool for the mass production of plastic parts. Specifically, the heated and melted material is injected into a die cavity from high pressure, and a finished product is obtained after cooling and solidification. Refrigeration cooling usually takes up the majority of the molding cycle, so it is important to control the molding cycle to increase throughput and speed up product cooling.

Most of existing electric vehicle plastic accessory production molds are cooled by a single-circulation cooling mode, namely cooling water, cooling oil or cold air are transmitted to the other side from one side of a cooling cavity, and the heat dissipation efficiency is low, so that the quality of finished products can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art cooling die's cooling method singleness to influence cooling efficiency's problem, and the cooling die that an electric motor car plastic accessories was moulded plastics that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cooling mould for injection molding of plastic accessories of an electric vehicle comprises an upper mould and a lower mould which are mutually attached, wherein an upper mould cavity is arranged in the upper mould, a lower mould cavity is arranged in the lower mould, spiral coil pipes are fixedly sleeved on the outer sides of the upper mould cavity and the lower mould cavity, cooling boxes are fixedly arranged on the outer side walls of the upper mould and the lower mould, refrigerators are fixedly embedded on the side walls of the cooling boxes, a circulating pump is fixedly arranged on the lower surface in the cooling boxes, the output end of the circulating pump is fixedly communicated with a water outlet pipe, the other end of the water outlet pipe is fixedly communicated with the bottom end of each spiral coil pipe, a return pipe is fixedly communicated with the top end of each spiral coil pipe, the other end of the return pipe is fixedly communicated with the cooling boxes, a matched air deflector is fixedly connected to the lower surface in the lower mould, the air deflector is of a hollow structure, the side wall of the air deflector is fixedly communicated with a cold air pipe, the cold air pipe penetrates through the side wall of the lower die and extends outwards, the side wall of the upper die, which is close to the top end, is fixedly communicated with an air outlet pipe, an automatic air exhaust mechanism is installed in the air outlet pipe, the bottom of the lower die cavity is fixedly connected with the upper surface of the air deflector through a plurality of first connecting columns, and the top of the upper die cavity is fixedly connected with the upper surface inside the upper die through a plurality of second connecting columns;

automatic exhaust mechanism is including seting up the ring channel on the air-out pipe inner wall, and installs the annular in the ring channel and block up, fixedly connected with montant in the air-out pipe, and slide on the montant and run through and be provided with the slide bar, the tip and the annular of slide bar block up fixed connection, and the outside cover of slide bar is equipped with the spring, the both ends of spring block up fixed connection with montant and annular respectively.

Preferably, the cold section of the refrigerator is positioned on the inner side of the cooling box, and the hot end of the refrigerator is positioned on the outer side of the cooling box.

Preferably, the cross section of the annular plug is smaller than that of the annular groove.

Preferably, the top of the upper mold cavity is fixedly communicated with an injection molding opening.

Preferably, the upper die, the lower die, the upper die cavity, the lower die cavity and the spiral coil are all made of heat-conducting metal materials.

Compared with the prior art, the utility model provides a cooling mold that electric motor car plastic accessories was moulded plastics possesses following beneficial effect:

the cooling mould for injection molding of plastic accessories of the electric vehicle is characterized in that an upper mould, a lower mould, an upper mould cavity, a lower mould cavity, a spiral coil pipe, a cooling box, a refrigerator, a circulating pump, a water outlet pipe, a backflow pipe, an air deflector, a cold air pipe, an air outlet pipe and an automatic air exhaust mechanism are arranged, the circulating pump and the refrigerator are started, water in the cooling box is conveniently cooled by the refrigerator, the cooled cold water enters the spiral coil pipe through the water outlet pipe, the cold water in the spiral coil pipe is subjected to sufficient heat exchange with the upper mould cavity and the lower mould cavity, so that heat absorption cooling is conveniently carried out, the heat-absorbed water returns to the cooling box through the backflow pipe, cooling treatment is carried out through the refrigerator, so that water circulation cooling is completed, waste of water resources is avoided, external cold air can be introduced into the lower mould through the cold, after cold air is injected into the mold, the pressure inside the mold is increased, and the automatic air exhaust mechanism is convenient for the air outlet pipe to automatically exhaust air, so that the cold air can be subjected to sufficient heat exchange inside the mold, and the cooling effect is effectively ensured.

The device does not relate to the part and all is the same with prior art or can adopt prior art to realize, the utility model discloses make the cooling mould catchment cold and forced air cooling in an organic whole, effectively improved the cooling effect of mould to improve electric motor car plastic accessories's production efficiency.

Drawings

Fig. 1 is a schematic structural view of a cooling mold for injection molding of plastic accessories of an electric vehicle according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the injection molding machine comprises an upper mold 1, a lower mold 2, an upper mold cavity 3, a lower mold cavity 4, a spiral coil pipe 5, a cooling box 6, a refrigerator 7, a circulating pump 8, a water outlet pipe 9, a return pipe 10, an air deflector 11, a cold air pipe 12, an air outlet pipe 13, an annular groove 14, an annular plug 15, a vertical rod 16, a slide rod 17, a spring 18 and an injection molding opening 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a cooling mold for injection molding of plastic accessories of an electric vehicle comprises an upper mold 1 and a lower mold 2 which are mutually attached, wherein an upper mold cavity 3 is arranged in the upper mold 1, a lower mold cavity 4 is arranged in the lower mold 2, spiral coils 5 are fixedly sleeved on the outer sides of the upper mold cavity 3 and the lower mold cavity 4, cooling boxes 6 are fixedly arranged on the outer side walls of the upper mold 1 and the lower mold 2, a refrigerator 7 is fixedly embedded on the side wall of the cooling box 6, a circulating pump 8 is fixedly arranged on the lower surface in the cooling box 6, an output end of the circulating pump 8 is fixedly communicated with a water outlet pipe 9, the other end of the water outlet pipe 9 is fixedly communicated with the bottom end of the spiral coil 5, a return pipe 10 is fixedly communicated with the top end of the spiral coil 5, the other end of the return pipe 10 is fixedly communicated with the cooling, the air deflector 11 is of a hollow structure, a plurality of uniformly distributed air outlets are formed in the top of the air deflector 11, a cold air pipe 12 is fixedly communicated with the side wall of the air deflector 11, the cold air pipe 12 extends outwards through the side wall of the lower die 2, an air outlet pipe 13 is fixedly communicated with the side wall of the upper die 1 close to the top end, an automatic air exhaust mechanism is installed in the air outlet pipe 13, the bottom of the lower die cavity 4 is fixedly connected with the upper surface of the air deflector 11 through a plurality of first connecting columns, and the top of the upper die cavity 3 is fixedly connected with the upper surface inside the upper die 1 through a plurality of second connecting columns;

the automatic exhaust mechanism comprises a ring-shaped groove 14 arranged on the inner wall of an air outlet pipe 13, an annular plug 15 is arranged in the ring-shaped groove 14, a vertical rod 16 is fixedly connected in the air outlet pipe 13, a sliding rod 17 is arranged on the vertical rod 16 in a sliding and penetrating manner, the end part of the sliding rod 17 is fixedly connected with the annular plug 15, a spring 18 is sleeved outside the sliding rod 17, two ends of the spring 18 are respectively fixedly connected with the vertical rod 16 and the annular plug 15, a circulating pump 8 and a refrigerator 7 are started, water in a cooling box 6 is conveniently cooled through the refrigerator 7, cooled cold water enters a spiral coil pipe 5 through a water outlet pipe 9, the cold water in the spiral coil pipe 5 is in sufficient heat exchange with an upper die cavity 3 and a lower die cavity 4, so that heat absorption and cooling are conveniently carried out, the water after heat absorption returns to the cooling box 6 through a return pipe 10 again, avoid water waste, external cold wind can let in 2 in the bed die via cold wind pipe 12, thereby form in the mould from supreme cold wind down, further improve the cooling effect, the inside pressure increase of mould after the cold wind pours into, press annular plug 15 along the motion of ring channel 14, it slides and compression spring 18 along montant 16 to drive slide bar 17, thereby automatically, open out tuber pipe 13 and air exhaust, the back pressure that airs exhaust diminishes, spring 18 drives annular plug 15 and resets, make out tuber pipe 13 self-closing, thereby make cold wind can carry out abundant heat exchange inside the mould, effectively guarantee the cooling effect.

The cold section of the refrigerator 7 is positioned at the inner side of the cooling box 6, and the hot end of the refrigerator 7 is positioned at the outer side of the cooling box 6, so that the refrigerating effect of the refrigerator 7 is ensured.

The section of the annular plug 15 is smaller than that of the annular groove 14, so that the air outlet pipe 13 can be opened for discharging after the plug 15 moves.

The top of the upper die cavity 3 is fixedly communicated with an injection molding opening 19, so that injection molding is facilitated.

Go up mould 1, bed die 2, go up mould cavity 3, bed cavity 4 and spiral coil 5 and be heat conduction metal material, guarantee heat exchange performance, improve the cooling effect.

In the utility model, the circulating pump 8 and the refrigerator 7 are started, the water in the cooling box 6 is conveniently cooled by the refrigerator 7, the cooled cold water enters the spiral coil pipe 5 through the water outlet pipe 9, the cold water in the spiral coil pipe 5 is fully heat exchanged with the upper die cavity 3 and the lower die cavity 4, thereby heat absorption and cooling are conveniently carried out, the water after heat absorption returns to the cooling box 6 through the return pipe 10, the cooling treatment is carried out through the refrigerator 7, water circulation cooling is completed, water resource waste is avoided, external cold air can be introduced into the lower die 2 through the cold air pipe 12, thereby cold air from bottom to top is formed in the die, the cooling effect is further improved, the pressure inside the die is increased after the cold air is injected, the annular plug 15 is pressed to move along the annular groove 14, the slide bar 17 is driven to slide along the vertical bar 16 and compress the spring 18, thereby the air outlet, after the air is exhausted, the pressure intensity is reduced, the spring 18 drives the annular plug 15 to reset, and the air outlet pipe 13 is automatically closed, so that cold air can be fully subjected to heat exchange inside the die, and the cooling effect is effectively guaranteed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The cooling mold for injection molding of the plastic accessories of the electric vehicle comprises an upper mold (1) and a lower mold (2) which are mutually attached, and is characterized in that an upper mold cavity (3) is arranged in the upper mold (1), a lower mold cavity (4) is arranged in the lower mold (2), the outer sides of the upper mold cavity (3) and the lower mold cavity (4) are fixedly sleeved with a spiral coil (5), the outer side walls of the upper mold (1) and the lower mold (2) are fixedly provided with a cooling box (6), the side wall of the cooling box (6) is fixedly embedded with a refrigerator (7), the lower surface inside the cooling box (6) is fixedly provided with a circulating pump (8), the output end of the circulating pump (8) is fixedly communicated with a water outlet pipe (9), the other end of the circulating pump (9) is fixedly communicated with the bottom end of the spiral coil (5), the top end of the spiral coil (5) is fixedly communicated with a return pipe, the other end of the return pipe (10) is fixedly communicated with the cooling box (6), the lower surface inside the lower die (2) is fixedly connected with a matched air deflector (11), the air deflector (11) is of a hollow structure, the top of the air deflector (11) is provided with a plurality of uniformly distributed air outlets, the side wall of the air deflector (11) is fixedly communicated with a cold air pipe (12), the cold air pipe (12) penetrates through the side wall of the lower die (2) to extend outwards, the side wall, close to the top end, of the upper die (1) is fixedly communicated with an air outlet pipe (13), an automatic air exhaust mechanism is installed in the air outlet pipe (13), the bottom of the lower die cavity (4) is fixedly connected with the upper surface of the air deflector (11) through a plurality of first connecting columns, and the top of the upper die cavity (3) is fixedly connected with the upper surface inside the upper die (1) through a plurality of second connecting columns;

automatic exhaust mechanism is including offering ring channel (14) on air-out pipe (13) inner wall, and installs annular stopper (15) in ring channel (14), air-out pipe (13) internal fixation is connected with montant (16), and slides on montant (16) and run through and be provided with slide bar (17), the tip and the annular of slide bar (17) block up (15) fixed connection, and the outside cover of slide bar (17) is equipped with spring (18), the both ends of spring (18) block up (15) fixed connection with montant (16) and annular respectively.

2. A cooling mold for injection molding of plastic accessories of electric vehicles according to claim 1, characterized in that the cold section of the refrigerator (7) is located inside the cooling tank (6) and the hot end of the refrigerator (7) is located outside the cooling tank (6).

3. A cooling mold for injection molding of plastic accessories for electric vehicles according to claim 1, characterized in that the cross section of the annular plug (15) is smaller than the cross section of the annular groove (14).

4. The cooling mold for injection molding of plastic accessories of electric vehicles according to claim 1, characterized in that the top of the upper mold cavity (3) is fixedly communicated with an injection port (19).

5. The cooling mold for injection molding of plastic accessories of electric vehicles according to claim 1, wherein the upper mold (1), the lower mold (2), the upper mold cavity (3), the lower mold cavity (4) and the spiral coil (5) are all made of heat-conducting metal.