CN218700844U - Television foot fork seat production die capable of avoiding leakage and facilitating demolding - Google Patents

Abstract

The utility model relates to the technical field of injection moulds, in particular to a mold for the production of a TV set fork seat which avoids leakage and is easy to demould, comprising a lower mold and an upper mold, the top of the lower mold is provided with a first mold cavity, and the upper mold There is a second mold cavity at the bottom of the bottom, and it also includes: an ejector assembly, which is used to eject the TV stand after cooling and shaping inside the first mold cavity to the outside of the first mold cavity; two supporting columns make the upper The mold and the lower mold can move up and down between the two supporting columns; the rectangular frame and the top of the upper mold are provided with sealing grooves to improve the sealing between the lower mold and the upper mold and prevent the leakage of injection molding liquid. The utility model makes the upper mold move up and separate from the formed object through the threaded connection of the threaded rod and the second connecting block, and then pushes and pulls the first connecting block through the piston rod of the electric cylinder to make the lower mold and the formed object The objects are separated, so as to realize the demoulding of the formed objects and improve the convenience of use.

Description

A mold for the production of TV foot fork seat that avoids external leakage and is easy to demould

technical field

The utility model relates to the technical field of injection moulds, in particular to a mold for the production of television leg fork seats which avoids external leakage and is convenient for demoulding.

Background technique

The bottom of the sit-type TV set usually uses a foot fork to support the TV, and the foot fork needs to use an injection mold during production. As a tool for producing plastic products, injection molding is a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain complex-shaped parts such as foot forks. , the heated and melted plastic is injected into the mold cavity by the injection molding machine at high pressure, and after cooling and solidification, a molded product is obtained. However, due to the poor sealing performance of the traditional injection mold, it is easy to cause the injection liquid to leak from the opening of the mold core. After cooling and solidifying, the leaking part needs to be cleaned up.

The atomizer injection mold whose publication number is CN215472807U includes a plastic filling funnel, a panel, a nozzle plate, a first mounting plate, a core assembly, a second mounting plate, a square iron, a thimble plate and a bottom plate connected in sequence; the first mounting plate An accommodating cavity is formed between the second mounting plate; the mold core assembly includes a first mold core and a second mold core installed in the accommodating cavity; two circular holes are opened on the first mold core, and the circular holes are covered There is a first insert; the center of the first insert is provided with an injection hole, and a conduit adapted to the diameter of the injection hole is plugged into the injection hole; The insert is poured with plastic through the filling funnel, and injected into the second insert in the circular hole through the conduit to be injection molded.

The utility model arranges the first insert on the circular hole, sets the injection hole on the first insert, and injects molten plastic into the second insert by using a conduit, so that the material after injection is not easy to overflow and remain in the mold core edge, thereby reducing the cleaning burden of the staff, but when demolding, by installing several sets of thimbles between the second insert and the ejector plate, and the ejector plate can be close to the second mounting plate or away from it The direction of the second mounting plate is moved to drive the thimble to push the second insert out of the mold. Although the separation of the second insert and the formed object has been realized, the molded object has not been completely demoulded, which requires staff Further demoulding treatment will cause inconvenience in use. In view of this, we propose a mold for the production of TV foot fork seats that avoids leakage and is easy to demould.

Utility model content

In order to make up for the above deficiencies, the utility model provides a mold for the production of a TV set fork seat that avoids leakage and is easy to demould.

The technical scheme of the utility model is:

A mold for the production of a TV stand that avoids external leakage and is easy to demould, including a lower mold and an upper mold, the top of the lower mold is provided with a first mold cavity that matches the shape of the bottom part of the stand , the bottom of the upper mold is provided with a second mold cavity adapted to the shape of the top part of the foot fork seat, and also includes:

The ejection assembly is arranged under the lower mold, and is used to eject the TV prongs after cooling and shaping inside the first mold cavity to the outside of the first mold cavity;

Two support columns, used to connect the lower mold and the upper mold, so that the upper mold and the lower mold can move up and down between the two support columns;

The rectangular frame is arranged on the bottom of the upper mold, and the top of the upper mold is provided with a sealing groove, which is used to improve the sealing performance between the lower mold and the upper mold and prevent leakage of injection molding liquid.

As a preferred technical solution, the ejection assembly includes a fixing plate and a positioning column located at the center of the top of the fixing plate, and the top end of the positioning column passes through the bottom of the lower mold and is provided with a supporting plate.

As a preferred technical solution, the shape of the support plate is the same as that of the first mold cavity and the size is matched, and both the positioning column and the support plate are slidably connected with the lower mold.

As a preferred technical solution, the two supporting columns are symmetrically distributed on the left and right sides of the fixing plate and are fixedly connected to the sides of the fixing plate, and the lower mold is connected to the supporting columns through a first connecting block , the upper mold is connected with the support column through the second connecting block.

As a preferred technical solution, the outer wall of the supporting column close to the fixing plate is respectively provided with a first moving groove and a second moving groove which are slidably connected with the first engaging block and the second engaging block.

As a preferred technical solution, an electric cylinder for driving the first engaging block to move up and down is provided inside the support column and below the first moving slot.

As a preferred technical solution, the top of the upper mold is provided with an injection pipe for introducing injection molding liquid into the second mold cavity.

Compared with the prior art, the beneficial effects of the utility model are:

1. In the utility model, the upper mold can be moved up and separated from the formed object through the threaded connection of the threaded rod and the second connecting block, and then the piston rod of the electric cylinder pushes and pulls the first connecting block to make the lower mold and the second connecting block The formed object is separated, so as to realize the demoulding of the formed object, thereby improving the convenience of use;

2. The utility model is used to enhance the sealing between the lower mold and the upper mold through the flexible insertion of the rectangular frame and the sealing groove, so as to effectively prevent the injection liquid from leaking out through the gap between the upper mold and the lower mold.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic diagram of the overall structure after the section of the support column in the utility model;

Fig. 3 is one of partial structural representations of the utility model;

Fig. 4 is the partial structure schematic diagram after the middle and lower mold of the utility model cuts;

Fig. 5 is the second of partial structure schematic diagram of the present utility model;

Fig. 6 is the third part of the structural schematic diagram of the utility model;

Fig. 7 is a schematic diagram of part of the structure of the utility model after cutting the upper mold.

The meaning of each label in the figure is:

1. Lower mold; 11. First mold cavity; 12. Sealing groove; 13. Electromagnet; 14. First connecting block;

2. Upper mold; 21. Second mold cavity; 22. Rectangular frame; 23. Filling pipe; 24. Second connecting block;

3. Fixed plate; 31. Positioning column; 311. Support plate;

4. Support column; 41. First moving slot; 42. Second moving slot; 421. Threaded rod; 422. Guide rod; 43. Electric cylinder; 44. Servo motor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-7, the utility model provides a technical solution:

A mold for the production of a TV stand that avoids external leakage and is easy to demould, includes a lower mold 1 and an upper mold 2, the top of the lower mold 1 is provided with a first mold that matches the shape of the bottom part of the stand Cavity 11, the bottom of upper mold 2 is provided with the second mold cavity 21 that matches the shape of the top part of the foot fork seat, and also includes:

The ejector assembly is arranged below the lower mold 1. The ejector assembly includes a fixing plate 3 and a positioning column 31 at the center of the top of the position fixing plate 3. The top of the positioning column 31 passes through the bottom of the lower mold 1 and is provided with a support plate 311. The shape of the support plate 311 is the same as that of the first mold cavity 11 and the size is suitable. The positioning column 31 and the support plate 311 are all slidably connected with the lower mold 1, so that the support plate 311 can move inside the first cavity 11, So that when the lower mold 1 and the support plate 311 move relative to each other, the support plate 311 can push out the TV prongs after cooling and shaping inside the first cavity 11 to the outside of the first cavity 11. It is worth noting that the second The inner walls of the first mold cavity 11 and the second mold cavity 21 are coated with a release agent, which is convenient for demoulding the TV stand after cooling and shaping.

Two support columns 4 are used to connect the lower mold 1 and the upper mold 2, so that the upper mold 2 and the lower mold 1 can move up and down between the two support columns 4, and the two support columns 4 are symmetrically distributed on the fixed plate The left and right sides of 3 are fixedly connected with the sides of the fixed plate 3, the lower mold 1 is connected with the supporting column 4 through the first connecting block 14, the upper mold 2 is connected with the supporting column 4 through the second connecting block 24, and the supporting column 4 is close to The outer wall on one side of the fixed plate 3 is respectively provided with a first moving groove 41 and a second moving groove 42 which are slidably connected with the first engaging block 14 and the second engaging block 24, and the inside of the support column 4 is located in the first moving groove 41. Below is provided an electric cylinder 43 that drives the first connecting block 14 to move up and down, and the piston rod of the electric cylinder 43 is fixedly connected with the corresponding first connecting block 14 .

Specifically, when the piston rod of the electric cylinder 43 is extended to the extreme, the top of the first engaging block 14 is in contact with the top inner wall of the corresponding first moving groove 41, at this time, the bottom of the support plate 311 is in contact with the first cavity 11 It is worth noting that the outer wall of the support plate 311 is embedded with a rubber gasket, and the side of the rubber gasket away from the support plate 311 is in close contact with the inner wall of the first cavity 11 for increased support. The tightness between the plate 311 and the lower mold 1 prevents the injection liquid of the first cavity 11 from leaking through the gap between the support plate 311 and the lower mold 1 .

Further, the insides of the two second moving grooves 42 are provided with threaded rods 421 and guide rods 422 respectively, and the guide rods 422 are slidably connected with the corresponding second engaging blocks 24 for limiting the movement track of the second engaging blocks 24, The threaded rod 421 is rotatably connected to the inner wall of the corresponding second moving groove 42, the threaded rod 421 is threadedly connected to the corresponding second connecting block 24, and the top of the supporting column 4 corresponding to the threaded rod 421 is equipped with a servo motor 44, and the top of the threaded rod 421 passes through Pass through the top inner wall of the supporting column 4 corresponding to it and be coaxially connected with the output shaft of the servo motor 44 .

As is well known to those skilled in the art, the servo motor 44 drives the threaded rod 421 to rotate after being powered, so that the second connecting block 24 threaded with the threaded rod 421 is along the axial direction of the threaded rod 421 and at the corresponding first position. Move up and down in the two moving grooves 42 .

The rectangular frame 22 is arranged on the bottom of the upper mold 2, and the top of the upper mold 2 is provided with a sealing groove 12, and the rectangular frame 22 is movably inserted into the sealing groove 12, and the height of the rectangular frame 22 is the same as the depth of the sealing groove 12. When the bottom of the frame 22 is in contact with the bottom inner wall of the sealing groove 12, the bottom of the upper mold 2 is in contact with the top of the lower mold 1, which is used to improve the sealing between the lower mold 1 and the upper mold 2 and prevent the injection liquid from In addition, an electromagnet 13 is embedded in the inside of the lower mold 1 and along the inner wall of the sealing groove 12 away from the first cavity 11, and the rectangular frame 22 is made of metal material so that the electromagnet 13 After electrification, the rectangular frame 22 is adsorbed and fixed to enhance the tightness between the rectangular frame 22 and the sealing groove 12 .

What needs to be added is that both the lower mold 1 and the upper mold 2 are made of metal materials with good thermal conductivity, so that the heat inside the lower mold 1 and the upper mold 2 can be transferred to the outside, and then the lower mold 1 can be transferred through the external air flow. And the temperature on the surface of the upper mold 2 is taken away to improve the cooling efficiency.

As a preference of this embodiment, the top of the upper mold 2 is provided with an injection pipe 23 that guides the injection molding liquid into the second cavity 21, and the outer wall of the injection pipe 23 is provided with a valve for switching the injection pipe 23. control.

When the utility model prevents external leakage and is convenient for demoulding, the production mold for the TV foot fork base is used, and the piston rod of the electric cylinder 43 pushes the corresponding first connecting block 14 to move up inside the first moving groove 41. , so that the lower mold 1 moves up accordingly. When the bottom of the support plate 311 contacts the bottom inner wall of the first mold cavity 11, the electric cylinder 43 stops driving, and then the servo motor 44 drives the threaded rod 421 to rotate. Make the second engagement block 24 threadedly connected with the threaded rod 421 move down along the axial direction of the threaded rod 421 and in the corresponding second moving groove 42;

At the same time, another second engaging block 24 moves down along the axial direction of the guide rod 422 and in the corresponding second moving groove 42, so that the upper mold 2 moves down synchronously with the second engaging block 24, When the second engaging block 24 moves to the bottom of the second moving groove 42, the rectangular frame 22 is inserted into the inside of the sealing groove 12, and the bottom of the rectangular frame 22 is in contact with the bottom inner wall of the sealing groove 12, and then the injection molding liquid is passed through The injection pipe 23 is introduced into the second mold cavity 21, so that the injection molding liquid enters the first mold cavity 11 through the second mold cavity 21, and after cooling and forming, the threaded rod 421 is driven by the servo motor 44 to rotate in reverse, so that The second connecting block 24 drives the upper mold 2 to move upwards, and then the upper mold 2 is separated from the formed TV stand to realize demoulding, and then the piston rod of the electric cylinder 43 pulls the first connecting block 14 to move down, The lower mold 1 moves down accordingly, so that the position between the lower mold 1 and the support plate 311 is relatively adjusted, and then the lower mold 1 is separated from the formed TV foot fork to realize demoulding. At this time, after forming The TV stand is separated and located on the top of the support plate 311, and then the formed TV stand is removed.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the utility model Under the premise of the spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a avoid outer hourglass and TV set fork seat production of being convenient for drawing of patterns uses mould, includes bed die (1) and last mould (2), first die cavity (11) with fork seat bottom end portion shape looks adaptation are seted up at the top of bed die (1), second die cavity (21) with fork seat top end portion shape looks adaptation are seted up to the bottom of going up mould (2), its characterized in that still includes:

the ejection assembly is arranged below the lower die (1) and used for ejecting the television fork seat which is cooled and shaped in the first die cavity (11) to the outside of the first die cavity (11);

two supporting columns (4) for connecting the lower die (1) and the upper die (2) so that the upper die (2) and the lower die (1) can move up and down between the two supporting columns (4);

rectangle frame (22), set up in the bottom of last mould (2), seal groove (12) have been seted up at the top of going up mould (2), are used for improving bed die (1) with go up the leakproofness between mould (2), prevent that the liquid of moulding plastics from leaking outward.

2. The mold for producing a tv foot fork base avoiding leakage and facilitating mold release as claimed in claim 1, wherein: the ejection assembly comprises a fixing plate (3) and a positioning column (31) located in the center of the top of the fixing plate (3), and the top end of the positioning column (31) penetrates through the bottom of the lower die (1) and is provided with a supporting plate (311).

3. The mold for producing a tv foot fork base avoiding leakage and facilitating mold release as claimed in claim 2, wherein: the shape of the supporting plate (311) is the same as that of the first die cavity (11), the size of the supporting plate is matched with that of the first die cavity, and the positioning column (31) and the supporting plate (311) are both in sliding connection with the lower die (1).

4. The mold for producing a tv foot fork base avoiding leakage and facilitating mold release as claimed in claim 2, wherein: two support column (4) symmetric distribution is in the left and right sides of fixed plate (3) and with the side fixed connection of fixed plate (3), bed die (1) through first link up piece (14) with support column (4) are connected, go up mould (2) through second link up piece (24) with support column (4) are connected.

5. The mold for producing TV set fork base capable of avoiding leakage and facilitating mold release as claimed in claim 4, wherein: the outer wall of one side, close to the fixed plate (3), of the supporting column (4) is respectively provided with a first moving groove (41) and a second moving groove (42) which are in sliding connection with the first connecting block (14) and the second connecting block (24).

6. The mold for producing the television foot fork base avoiding the leakage and facilitating the demolding as claimed in claim 5, wherein: and an electric cylinder (43) for driving the first connecting block (14) to move up and down is arranged in the supporting column (4) and below the first moving groove (41).

7. The mold for producing a tv foot fork base avoiding leakage and facilitating mold release as claimed in claim 1, wherein: and a material injection pipe (23) for guiding injection molding liquid into the second mold cavity (21) is arranged at the top of the upper mold (2).

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