阅读说明：本技术 电视机壳塑胶模具及生产工艺 (Plastic mould for TV shell and its production technology ) 是由 李勇 于 2020-10-29 设计创作，主要内容包括：本发明属于模具领域,尤其是一种电视机壳塑胶模具及生产工艺,针对现有的注塑模具在使用时,冷却速度慢,脱模困难,不能满足人们的使用需求的问题,现提出如下方案,其电视机壳塑胶模具包括注塑台,所述注塑台的顶部设有下模,下模的顶部设有上模,上模上设有注塑口,所述下模上开设有冷却腔,冷却腔的一侧内壁固定连通有抽吸管的一端,注塑台的顶部设有冷却液存放箱,抽吸管的另一端延伸至冷却液存放箱内,所述冷却腔内滑动安装有活塞,活塞的一侧固定安装有推拉板的一侧,推拉板的另一侧延伸至下模的外侧,本发明可以使原料快速冷却成型,提高生产效率,同时可以方便将成型的机壳顶出,操作方便。(The invention belongs to the field of moulds, in particular to a television shell plastic mould and a production process, aiming at the problems that the existing injection mould has low cooling speed, difficult demoulding and can not meet the use requirements of people when in use, the invention provides the following scheme that the television shell plastic mould comprises an injection moulding table, the top of the injection moulding table is provided with a lower mould, the top of the lower mould is provided with an upper mould, the upper mould is provided with an injection moulding opening, the lower mould is provided with a cooling cavity, the inner wall of one side of the cooling cavity is fixedly communicated with one end of a suction pipe, the top of the injection moulding table is provided with a cooling liquid storage box, the other end of the suction pipe extends into the cooling liquid storage box, a piston is arranged in the cooling cavity in a sliding way, one side of the piston is fixedly provided with one side of a push-pull plate, and the other side of the push-pull, meanwhile, the formed shell can be conveniently ejected out, and the operation is convenient.)

1. TV set casing plastic mould, including the platform of moulding plastics, its characterized in that, the top of the platform of moulding plastics is equipped with the lower mould, and the top of lower mould is equipped with the mould, is equipped with the mouth of moulding plastics on going up the mould, seted up the cooling chamber on the lower mould, the fixed intercommunication of one side inner wall in cooling chamber has the one end of suction tube, and the top of the platform of moulding plastics is equipped with the coolant liquid and deposits the case, and the other end of suction tube extends to the coolant liquid and deposits the incasement, slidable mounting has the piston in the cooling chamber, and one side fixed mounting of piston has one side of push-and-pull plate, and the other side of push-and-pull plate extends to the outside of lower mould, be equipped with the liftout plate in the lower mould, the one end of a plurality of lift.

2. The plastic mold for television set cases as claimed in claim 1, wherein an outer ring of the first bearing is fixedly installed on one side of the lower mold, a first transmission shaft is fixedly installed on the inner ring of the first bearing, a first gear is fixedly installed at the bottom end of the first transmission shaft, a first rack is engaged with the first gear, the first rack is fixedly installed on one side of the push-pull plate, a second transmission shaft is sleeved on the outer side of the first transmission shaft, a circular groove is formed at the bottom of the second transmission shaft, and the outer side of the first transmission shaft is slidably connected with the inner wall of the circular groove.

3. The plastic mold for TV set shell according to claim 1, wherein a bracket is fixedly installed on the top of the upper mold, a fixing plate is fixedly installed on one side of the bracket, the second transmission shaft is rotatably connected with the fixing plate, the bottom of the fixing plate contacts with the top of the lifting plate, one side of the lifting plate is fixedly connected with one side of the connecting plate, one end of a plurality of springs is fixedly installed on the top of the connecting plate, and the other end of the plurality of springs is fixedly connected with the bottom of the injection molding table.

4. The plastic mold for TV set shell as described in claim 1, wherein a plurality of legs are fixed to the bottom of the injection molding table, and rubber pads are fixed to the bottom of each of the plurality of legs.

5. The plastic mold for TV set shell according to claim 2, wherein the inner wall of the circular groove is fixedly installed with a guide block, the outer side of the first transmission shaft is opened with a guide groove, and the guide block is slidably connected with the inner wall of the guide groove.

6. The plastic mold for TV set case according to claim 3, wherein the bracket is rotatably installed with a cross bar, the outer side of the cross bar is fixedly sleeved with a first bevel gear, the first bevel gear is engaged with a second bevel gear, and the second bevel gear is fixedly installed on the top of the second transmission shaft.

7. The plastic mold for television set cases as claimed in claim 1, wherein a vertical plate is fixedly installed on the top of the injection molding table, a groove is formed on one side of the vertical plate, a second rack is fixedly installed in the groove, a second gear is fixedly installed at one end of the cross bar, and the second gear is engaged with the second rack.

8. The plastic mold for TV set case according to claim 7, wherein a mounting plate is fixedly installed on one side of the vertical plate, a cylinder is fixedly installed on the top of the mounting plate, and a telescopic shaft of the cylinder is fixedly connected with the top of the bracket.

9. The plastic mold for TV set case according to claim 3, wherein the second bearing is fixedly installed on the top of the fixing plate, and the outer side of the second transmission shaft is fixedly connected with the inner ring of the second bearing.

10. A process for manufacturing a plastic mold for a tv set housing according to claims 1-9, comprising the steps of:

s1: when the cooling liquid storage box is used, ice blocks and water are placed in the cooling liquid storage box in advance, the air cylinder is started through the switch, the air cylinder drives the support to move downwards, the support drives the upper die to move downwards, the upper die covers the lower die, meanwhile, the second gear moves downwards along with the support, the second gear is meshed with the second rack, the second gear drives the transverse rod to rotate while moving downwards, the transverse rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the second transmission shaft to rotate, the second transmission shaft drives the first transmission shaft to rotate through the guide block, the first transmission shaft drives the first gear to rotate, the first gear is meshed with the first rack to enable the push-pull plate to move rightwards, the push-pull plate drives the piston to move rightwards, and then cooling liquid in the cooling liquid storage box is pumped into the cooling cavity through the suction;

s2: the support moves downwards to drive the fixed plate to move downwards, the fixed plate drives the lifting plate to move downwards, the lifting plate drives the connecting plate to move downwards, the connecting plate drives the plurality of ejection rods to move downwards, the springs are stressed and stretched at the moment, and the ejection plates are driven to move downwards through the ejection rods;

s3: the raw materials are injected into a die cavity formed by an upper die and a lower die through an injection port, the raw materials can be rapidly cooled and formed through cooling liquid, then the cylinder drives the support to move upwards, the support drives the upper die to move downwards to complete die sinking, the piston moves leftwards at the moment, liquid in the cooling cavity is pushed into the cooling liquid storage box to be cooled, meanwhile, the spring gradually resets, the connecting plate drives the ejection rods to move upwards, and then the ejection plate is ejected out of the formed television shell, so that the demolding is convenient.

Technical Field

The invention relates to the technical field of molds, in particular to a plastic mold for a television shell and a production process.

Background

The mold refers to various molds 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, and the injection mold is required in the production of the television shell.

When the existing injection mold is used, the cooling speed is low, the demolding is difficult, and the use requirements of people cannot be met, so that a plastic mold and a production process for a television shell are provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects that an injection mold in the prior art is low in cooling speed and difficult to demould and cannot meet the use requirements of people, and provides a plastic mold for a television shell and a production process thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

TV set casing plastic mould, including the platform of moulding plastics, the top of the platform of moulding plastics is equipped with the lower mould, and the top of lower mould is equipped with the mould, is equipped with the mouth of moulding plastics on going up the mould, seted up the cooling chamber on the lower mould, the fixed intercommunication of one side inner wall in cooling chamber has the one end of suction tube, and the top of the platform of moulding plastics is equipped with the coolant liquid and deposits the case, and the other end of suction tube extends to the coolant liquid and deposits the incasement, slidable mounting has the piston in the cooling chamber, and one side fixed mounting of piston has one side of push-and-pull plate, and the other side of push-and-pull plate extends to the outside of lower mould, be equipped with the ejector plate in the lower mould, the bottom fixedly connected with one end of a plurality.

Preferably, an outer ring of a first bearing is fixedly mounted on one side of the lower die, a first transmission shaft is fixedly mounted on an inner ring of the first bearing, a first gear is fixedly mounted at the bottom end of the first transmission shaft, a first rack is meshed with the first gear, the first rack is fixedly mounted on one side of the push-pull plate, a second transmission shaft is sleeved on the outer side of the first transmission shaft, a circular groove is formed in the bottom of the second transmission shaft, and the outer side of the first transmission shaft is slidably connected with the inner wall of the circular groove.

Preferably, the top fixed mounting who goes up the mould has the support, and one side fixed mounting of support has the fixed plate, and the second transmission shaft rotates with the fixed plate to be connected, and the bottom contact of fixed plate has the top of lifter plate, one side of lifter plate and one side fixed connection of connecting plate, and the top fixed mounting of connecting plate has the one end of a plurality of springs, the other end of a plurality of springs all with the bottom fixed connection who moulds plastics the platform.

Preferably, a plurality of supporting legs are fixedly installed at the bottom of the injection molding table, and rubber pads are fixedly installed at the bottoms of the supporting legs.

Preferably, the inner wall of the circular groove is fixedly provided with a guide block, the outer side of the first transmission shaft is provided with a guide groove, and the guide block is connected with the inner wall of the guide groove in a sliding manner.

Preferably, the support is rotatably provided with a cross rod, a first bevel gear is fixedly sleeved on the outer side of the cross rod, a second bevel gear is meshed with the first bevel gear, and the second bevel gear is fixedly arranged at the top of the second transmission shaft.

Preferably, the top of the injection molding table is fixedly provided with a vertical plate, one side of the vertical plate is provided with a groove, a second rack is fixedly arranged in the groove, one end of the cross rod is fixedly provided with a second gear, and the second gear is meshed with the second rack.

Preferably, one side fixed mounting of riser has the mounting panel, and the top fixed mounting of mounting panel has the cylinder, the telescopic shaft of cylinder and the top fixed connection of support.

Preferably, the top of the fixing plate is fixedly provided with a second bearing, and the outer side of the second transmission shaft is fixedly connected with an inner ring of the second bearing.

The invention also provides a production process of the plastic mold for the television shell, which comprises the following steps:

s1: when the cooling liquid storage box is used, ice blocks and water are placed in the cooling liquid storage box in advance, the air cylinder is started through the switch, the air cylinder drives the support to move downwards, the support drives the upper die to move downwards, the upper die covers the lower die, meanwhile, the second gear moves downwards along with the support, the second gear is meshed with the second rack, the second gear drives the transverse rod to rotate while moving downwards, the transverse rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the second transmission shaft to rotate, the second transmission shaft drives the first transmission shaft to rotate through the guide block, the first transmission shaft drives the first gear to rotate, the first gear is meshed with the first rack to enable the push-pull plate to move rightwards, the push-pull plate drives the piston to move rightwards, and then cooling liquid in the cooling liquid storage box is pumped into the cooling cavity through the suction;

s2: the support moves downwards to drive the fixed plate to move downwards, the fixed plate drives the lifting plate to move downwards, the lifting plate drives the connecting plate to move downwards, the connecting plate drives the plurality of ejection rods to move downwards, the springs are stressed and stretched at the moment, and the ejection plates are driven to move downwards through the ejection rods;

s3: the raw materials are injected into a die cavity formed by an upper die and a lower die through an injection port, the raw materials can be rapidly cooled and formed through cooling liquid, then the cylinder drives the support to move upwards, the support drives the upper die to move downwards to complete die sinking, the piston moves leftwards at the moment, liquid in the cooling cavity is pushed into the cooling liquid storage box to be cooled, meanwhile, the spring gradually resets, the connecting plate drives the ejection rods to move upwards, and then the ejection plate is ejected out of the formed television shell, so that the demolding is convenient.

Compared with the prior art, the invention has the beneficial effects that:

according to the scheme, when the upper die and the lower die are closed, the cooling liquid can enter the cooling cavity, the raw materials can be rapidly cooled and formed through the cooling liquid, the production efficiency is improved, the cooling liquid can be discharged for heat exchange when the die is opened, and the cooling effect of the cooling liquid is ensured;

according to the scheme, the ejector plate can move downwards when the upper die and the lower die are closed, and the ejector plate is reset upwards through the spring when the die is opened, so that the formed shell can be ejected conveniently, and the die is conveniently released;

the invention can quickly cool and mold the raw materials, improve the production efficiency, and simultaneously can conveniently eject the molded shell, and the operation is convenient.

Drawings

FIG. 1 is a schematic structural diagram of a plastic mold for a TV housing according to the present invention;

FIG. 2 is a schematic structural diagram of part A of a plastic mold for a television housing according to the present invention;

FIG. 3 is a schematic structural diagram of a portion B of a plastic mold for a TV set housing according to the present invention;

fig. 4 is a schematic bottom view of the connection between the first transmission shaft and the second transmission shaft of the plastic mold for a tv housing according to the present invention;

fig. 5 is a schematic bottom view of the connection between the lower mold and the ejector rod of the plastic mold for a tv housing according to the present invention.

In the figure: the device comprises an injection molding table 1, a lower mold 2, an upper mold 3, a support 4, a cylinder 5, a cross rod 6, a second gear 7, a vertical plate 8, a cooling cavity 9, a suction pipe 10, a cooling liquid storage tank 11, a piston 12, a push-pull plate 13, a first bearing 14, a first transmission shaft 15, a first gear 16, a second transmission shaft 17, a guide groove 18, a guide block 19, a fixing plate 20, a second bevel gear 21, a first bevel gear 22, an ejector plate 23, an injection molding opening 24, a connecting plate 25, an ejector rod 26, a spring 27, a mounting plate 28 and a lifting plate 29.

Detailed Description

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

Example one

Referring to fig. 1-5, a plastic mold for a television housing comprises an injection molding table 1, a lower mold 2 is arranged at the top of the injection molding table 1, an upper mold 3 is arranged at the top of the lower mold 2, an injection molding opening 24 is formed in the upper mold 3, a cooling cavity 9 is formed in the lower mold 2, one end of a suction tube 10 is fixedly communicated with the inner wall of one side of the cooling cavity 9, a cooling liquid storage box 11 is arranged at the top of the injection molding table 1, the other end of the suction tube 10 extends into the cooling liquid storage box 11, a piston 12 is slidably mounted in the cooling cavity 9, one side of a push-pull plate 13 is fixedly mounted at one side of the piston 12, the other side of the push-pull plate 13 extends to the outer side of the lower mold 2, an ejection plate 23 is arranged in the lower mold 2, one end of a plurality of ejection rods 26 is fixedly connected to the bottom of the ejection plate.

According to the invention, an outer ring of a first bearing 14 is fixedly arranged on one side of a lower die 2, a first transmission shaft 15 is fixedly arranged on an inner ring of the first bearing 14, a first gear 16 is fixedly arranged at the bottom end of the first transmission shaft 15, a first rack is meshed with the first gear 16 and is fixedly arranged on one side of a push-pull plate 13, a second transmission shaft 17 is sleeved on the outer side of the first transmission shaft 15, a circular groove is formed in the bottom of the second transmission shaft 17, and the outer side of the first transmission shaft 15 is in sliding connection with the inner wall of the circular groove.

In the invention, the bracket 4 is fixedly arranged at the top of the upper die 3, the fixed plate 20 is fixedly arranged on one side of the bracket 4, the second transmission shaft 17 is rotatably connected with the fixed plate 20, the bottom of the fixed plate 20 is contacted with the top of the lifting plate 29, one side of the lifting plate 29 is fixedly connected with one side of the connecting plate 25, one end of a plurality of springs 27 is fixedly arranged at the top of the connecting plate 25, and the other ends of the plurality of springs 27 are fixedly connected with the bottom of the injection molding table 1.

In the invention, a plurality of support legs are fixedly arranged at the bottom of the injection molding table 1, and rubber pads are fixedly arranged at the bottoms of the support legs.

In the invention, a guide block 19 is fixedly arranged on the inner wall of the circular groove, a guide groove 18 is arranged on the outer side of the first transmission shaft 15, and the guide block 19 is connected with the inner wall of the guide groove 18 in a sliding manner.

In the invention, a cross rod 6 is rotatably arranged on a bracket 4, a first bevel gear 22 is fixedly sleeved on the outer side of the cross rod 6, a second bevel gear 21 is meshed on the first bevel gear 22, and the second bevel gear 21 is fixedly arranged on the top of a second transmission shaft 17.

According to the injection molding machine, a vertical plate 8 is fixedly mounted at the top of an injection molding table 1, a groove is formed in one side of the vertical plate 8, a second rack is fixedly mounted in the groove, a second gear 7 is fixedly mounted at one end of a cross rod 6, and the second gear 7 is meshed with the second rack.

In the invention, one side of the vertical plate 8 is fixedly provided with the mounting plate 28, the top of the mounting plate 28 is fixedly provided with the air cylinder 5, and the telescopic shaft of the air cylinder 5 is fixedly connected with the top of the bracket 4.

In the invention, the top of the fixing plate 20 is fixedly provided with a second bearing, and the outer side of the second transmission shaft 17 is fixedly connected with the inner ring of the second bearing.

Example two

Referring to fig. 1-5, a plastic mold for a television housing comprises an injection molding table 1, a lower mold 2 is arranged at the top of the injection molding table 1, an upper mold 3 is arranged at the top of the lower mold 2, an injection molding opening 24 is formed in the upper mold 3, a cooling cavity 9 is formed in the lower mold 2, one end of a suction pipe 10 is fixedly communicated with the inner wall of one side of the cooling cavity 9, a cooling liquid storage box 11 is arranged at the top of the injection molding table 1, the other end of the suction pipe 10 extends into the cooling liquid storage box 11, a piston 12 is slidably mounted in the cooling cavity 9, one side of the piston 12 is fixedly provided with one side of a push-pull plate 13 by welding, the other side of the push-pull plate 13 extends to the outer side of the lower mold 2, an ejection plate 23 is arranged in the lower mold 2, the bottom of the ejection plate 23 is fixedly connected with one ends of a plurality of ejection rods 26 by welding.

According to the invention, an outer ring of a first bearing 14 is fixedly arranged on one side of a lower die 2 through welding, a first transmission shaft 15 is fixedly arranged on an inner ring of the first bearing 14 through welding, a first gear 16 is fixedly arranged at the bottom end of the first transmission shaft 15 through welding, a first rack is meshed on the first gear 16 and is fixedly arranged on one side of a push-pull plate 13 through welding, a second transmission shaft 17 is sleeved on the outer side of the first transmission shaft 15, a circular groove is formed in the bottom of the second transmission shaft 17, the outer side of the first transmission shaft 15 is slidably connected with the inner wall of the circular groove, and the push-pull plate 13 can be horizontally moved through meshing with the first rack when the first gear 16 rotates.

According to the injection molding machine, the support 4 is fixedly arranged at the top of the upper die 3 through welding, the fixing plate 20 is fixedly arranged on one side of the support 4 through welding, the second transmission shaft 17 is rotatably connected with the fixing plate 20, the bottom of the fixing plate 20 is in contact with the top of the lifting plate 29, one side of the lifting plate 29 is fixedly connected with one side of the connecting plate 25 through welding, one ends of the springs 27 are fixedly arranged at the top of the connecting plate 25 through welding, the other ends of the springs 27 are fixedly connected with the bottom of the injection molding table 1 through welding, and the springs 27 reset the connecting plate 25.

According to the invention, a plurality of support legs are fixedly arranged at the bottom of the injection molding table 1 through welding, rubber pads are fixedly arranged at the bottoms of the support legs through welding, and the support legs support the injection molding table 1.

In the invention, a guide block 19 is fixedly arranged on the inner wall of the circular groove through welding, a guide groove 18 is formed on the outer side of the first transmission shaft 15, the guide block 19 is in sliding connection with the inner wall of the guide groove 18, and the guide block 19 and the guide groove 18 enable the first transmission shaft 15 to only slide in the circular groove.

According to the invention, a cross rod 6 is rotatably mounted on a support 4, a first bevel gear 22 is fixedly sleeved on the outer side of the cross rod 6, a second bevel gear 21 is meshed on the first bevel gear 22, the second bevel gear 21 is fixedly mounted on the top of a second transmission shaft 17 through welding, and the rotating directions of the first bevel gear 22 and the second bevel gear 21 are changed.

According to the injection molding machine, a vertical plate 8 is fixedly arranged at the top of an injection molding table 1 through welding, a groove is formed in one side of the vertical plate 8, a second rack is fixedly arranged in the groove through welding, a second gear 7 is fixedly arranged at one end of a cross rod 6 through welding, the second gear 7 is meshed with the second rack, and the second rack is arranged so that the second gear 7 can rotate while moving.

According to the invention, one side of the vertical plate 8 is fixedly provided with the mounting plate 28 through welding, the top of the mounting plate 28 is fixedly provided with the air cylinder 5 through welding, the telescopic shaft of the air cylinder 5 is fixedly connected with the top of the support 4 through welding, and the air cylinder 5 is used for driving the support 4 to vertically move.

In the invention, the top of the fixing plate 20 is fixedly provided with a second bearing through welding, the outer side of the second transmission shaft 17 is fixedly connected with the inner ring of the second bearing through welding, and the second bearing enables the second transmission shaft 17 to stably rotate.

The embodiment also provides a production process of the plastic mold for the television shell, which comprises the following steps:

s1: when the cooling device is used, ice blocks and water are placed in the cooling liquid storage box 11 in advance, the air cylinder 5 is started through a switch, the air cylinder 5 drives the support 4 to move downwards, the support 4 drives the upper die 3 to move downwards, the upper die 3 covers the lower die 2, meanwhile, the second gear 7 moves downwards along with the support 4, as the second gear 7 is meshed with the second rack, the second gear 7 drives the cross rod 6 to rotate while moving downwards, the cross rod 6 drives the first bevel gear 22 to rotate, the first bevel gear 22 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the second transmission shaft 17 to rotate, the second transmission shaft 17 drives the first transmission shaft 15 to rotate through the guide block 19, the first transmission shaft 15 drives the first gear 16 to rotate, the first gear 16 can drive the push-pull plate 13 to move rightwards through being meshed with the first rack, the push-pull plate 13 drives the piston 12 to move rightwards, further, the cooling liquid in the cooling liquid storage tank 11 is pumped into the cooling chamber 9 through the suction pipe 10;

s2: the fixed plate 20 is driven to move downwards by the downward movement of the bracket 4, the fixed plate 20 drives the lifting plate 29 to move downwards, the lifting plate 29 drives the connecting plate 25 to move downwards, the connecting plate 25 drives the ejection rods 26 to move downwards, and at the moment, the springs 27 are stressed and stretched to drive the ejection plates 23 to move downwards through the ejection rods 26;

s3: the raw materials are injected into the die cavity formed by the upper die 3 and the lower die 2 through the injection port 24, the raw materials can be rapidly cooled and formed through the cooling liquid, then the cylinder 5 drives the support 4 to move upwards, the support 4 drives the upper die 3 to move downwards to complete die sinking, at the moment, the piston 12 moves leftwards, the liquid in the cooling cavity 9 is pushed into the cooling liquid storage box 11 to be cooled, meanwhile, the spring 27 gradually resets, the connecting plate 25 drives the ejection rods 26 to move upwards, and then the ejection plate 23 is ejected out of the formed television shell, and the demolding is convenient.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.