CN218139720U

CN218139720U - Television middle frame injection mold

Info

Publication number: CN218139720U
Application number: CN202220976158.2U
Authority: CN
Inventors: 肖纪辉
Original assignee: Litu Plastic Products Dongguan Co ltd
Current assignee: Litu Plastic Products Dongguan Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-12-27
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a television middle frame injection mold, which comprises a lower mold, wherein a top plate is arranged above the lower mold, an upper mold is arranged on the bottom surface of the top plate, a water tank is arranged on the bottom surface of the lower mold, and a lifting mechanism for driving the top plate to move up and down is arranged on the water tank; the lower die is of a cavity structure, a water pump is installed on the water tank, a water pumping pipe of the water pump extends into the water tank, a water outlet pipe of the water pump extends into the lower die, and a return pipe is installed between the lower die and the water tank. The utility model discloses a set up water pump, water tank, back flow, the back is accomplished to moulding plastics, through starting the water pump, carries the cavity of bed die with the water in the water tank in to be convenient for reduce the temperature of bed die, along with water constantly increases, in the water of bed die flows to the water tank again through the back flow, and then makes the hydrologic cycle get up, thereby the temperature of bed die that falls more quickly, thereby the shaping of accelerating the product has improved production efficiency.

Description

Television middle frame injection mold

Technical Field

The utility model relates to an injection mold field especially relates to a TV set center injection mold.

Background

The television is a device that transmits moving image pictures and audio signals by using electronic technology according to the persistence of vision characteristics and visual psychology of human eyes, that is, a television receiver. Are also important broadcast and video communication tools. The basic system of the television consists of three parts, namely shooting, transmission and display. Compared with a wide-edge design, the ultra-narrow-frame television has a larger screen visually, has more impact on viewing experience, embodies the quality and the design power of a product, enables the product to have more quality, and is deeply favored by consumers. The television frame is generally injection molded by an injection mold.

The existing Chinese patent with the publication number of CN208290372U discloses an injection mold for injection molding of a television front frame, which comprises a bottom plate, wherein a mounting rail is fixedly connected to the middle position of the top of the bottom plate, a lower mold is slidably connected to the inner surface of the mounting rail, and an ejection device is arranged at the bottom of the inner cavity of the lower mold.

However, the technical scheme has the following defects: lack the initiative cooling mechanism, lead to the product cooling shaping speed slower, production efficiency is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a TV set center injection mold to solve above-mentioned at least one technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize:

an injection mold for a television middle frame comprises a lower mold, wherein a top plate is arranged above the lower mold, an upper mold is arranged on the bottom surface of the top plate, a material conveying pipe penetrates through the upper mold, a water tank is arranged on the bottom surface of the lower mold, and a lifting mechanism for driving the top plate to move up and down is arranged on the water tank; the lower die is of a cavity structure, a water pump is mounted on the water tank, a water pumping pipe of the water pump extends into the water tank, a water outlet pipe of the water pump extends into the lower die, and a return pipe is mounted between the lower die and the water tank; the lower die is provided with a demoulding mechanism; the inner top surface of the water tank is provided with a hollow plate, the bottom surface of the hollow plate is provided with a plurality of spray heads, the lower end of the return pipe is connected with the hollow plate, and the water tank is provided with two grid plates in a penetrating manner; the grid plate is made of aluminum alloy, and a water injection pipe is installed on the water tank.

Preferably, demoulding mechanism includes back style of calligraphy venturi tube and air pump, back style of calligraphy venturi tube is installed in the bed die, install a plurality of piston pipes on the back style of calligraphy venturi tube, the piston pipe runs through the top surface of bed die, sliding connection has the piston piece in the piston pipe, install the connecting rod on the top surface of piston piece, the top piece is installed to the upper end of connecting rod, the air pump is installed on the bed die, the outlet duct of air pump extend in the end bed die and with back style of calligraphy venturi tube rigid coupling and intercommunication.

Preferably, elevating system includes four lead screws and drive assembly, four the lead screw all rotates and installs the top surface at the water tank, four all be provided with screw nut on the lead screw, four screw nut all runs through the roof and with roof fixed connection.

Preferably, drive assembly includes motor and driving belt, the motor is installed on the water tank, fixedly connected with driving gear on the power output shaft of motor, the meshing is connected with driven gear on the driving gear, driven gear fixed cover is established on the lead screw, four all fixed the cover is equipped with the belt pulley on the lead screw, driving belt overlaps and establishes on four belt pulleys.

The utility model has the advantages that:

1. the utility model discloses a set up water pump, water tank, back flow, the back is accomplished to moulding plastics, through starting the water pump, carries the cavity of bed die with the water in the water tank in to be convenient for reduce the temperature of bed die, along with water constantly increases, in the water of bed die flows to the water tank again through the back flow, and then makes the hydrologic cycle get up, thereby the temperature of bed die that falls more quickly, thereby the shaping of accelerating the product has improved production efficiency.

2. The utility model discloses a set up demoulding mechanism, during the use, through starting the air pump, it is intraductal to make the air pump constantly carry the font of returning with the air, and then in carrying a plurality of piston pipes with the air, along with in the air constantly pours into the piston pipe into, the piston piece in the piston pipe can the rebound, and then drives connecting rod, top piece rebound, and the ejecting bed die of fashioned product can be with the top piece of rebound.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1 according to the present invention;

FIG. 3 is a front view of the present invention;

reference numerals: 1. a water tank; 2. a lower die; 3. a top plate; 4. an upper die; 5. a delivery pipe; 6. a square-shaped pipe; 7. a piston tube; 9. a topsheet; 10. a connecting rod; 11. a piston plate; 12. an air pump; 13. a water pump; 14. a return pipe; 15. a hollow slab; 16. a grid plate; 17. a lead screw; 18. a lead screw nut; 19. A belt pulley; 20. a drive belt; 21. a motor; 22. a driving gear; 23. a driven gear.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-3, a television center injection mold comprises a lower mold 2, a top plate 3 is arranged above the lower mold 2, an upper mold 4 is arranged on the bottom surface of the top plate 3, a material conveying pipe 5 is arranged on the upper mold 4 in a penetrating manner, a water tank 1 is arranged on the bottom surface of the lower mold 2, and a lifting mechanism for driving the top plate 3 to move up and down is arranged on the water tank 1; the lower die 2 is of a cavity structure, a water pump 13 is mounted on the water tank 1, a water pumping pipe of the water pump 13 extends into the water tank 1, the extending end of a water outlet pipe of the water pump 13 is arranged in the lower die 2, and a return pipe 14 is mounted between the lower die 2 and the water tank 1; the lower die 2 is provided with a demoulding mechanism, the inner top surface of the water tank 1 is provided with a hollow plate 15, the bottom surface of the hollow plate 15 is provided with a plurality of spray heads, the lower end of the return pipe 14 is connected with the hollow plate 15, and the water tank 1 is provided with two grid plates 16 in a penetrating way; by arranging the hollow plate 15, the nozzles and the grid plate 16, when the water-cooling water tank is used, water in the lower die 2 flows into the hollow plate 15 through the return pipe 14, and then is sprayed out through the nozzles, the sprayed water falls on the grid plate 16, and meanwhile, the water transfers heat to the grid plate 16, so that the grid plate 16 transfers the heat to the outside of the water tank 1, and therefore heat dissipation is facilitated in the water tank 1, the grid plate 16 is made of aluminum alloy, and the water injection pipe is arranged on the water tank 1; through setting up the water injection pipe, be convenient for to water tank 1 internal water injection.

In this embodiment, specifically, the demolding mechanism includes a square-shaped tube 6 and an air pump 12, the square-shaped tube 6 is installed in the lower mold 2, the square-shaped tube 6 is provided with a plurality of piston tubes 7, the piston tubes 7 penetrate through the top surface of the lower mold 2, piston sheets 11 are slidably connected to the piston tubes 7, the top surfaces of the piston sheets 11 are provided with connecting rods 10, the top sheet 9 is installed at the upper ends of the connecting rods 10, the air pump 12 is installed on the lower mold 2, and the extending end of the air outlet pipe of the air pump 12 is fixedly connected and communicated with the square-shaped tube 6 in the lower mold 2; through setting up demoulding mechanism, during the use, through starting air pump 12, make air pump 12 continuously carry the air in the square-shaped pipe 6 of returning the letter chinese character 'hui', and then carry the air in a plurality of piston pipes 7, along with the air constantly pours into in the piston pipe 7, piston piece 11 in the piston pipe 7 can the rebound, and then drives connecting rod 10, top piece 9 rebound, and the top piece 9 of rebound can be ejecting fashioned product from bed die 2.

In this embodiment, the lifting mechanism specifically includes four lead screws 17 and a driving assembly, the four lead screws 17 are all rotatably mounted on the top surface of the water tank 1, lead screw nuts 18 are all disposed on the four lead screws 17, and the four lead screw nuts 18 all penetrate through the top plate 3 and are fixedly connected with the top plate 3; through setting up elevating system, during the use, it is rotatory to drive four lead screws 17 through drive assembly, and then makes four lead screw 17 nuts remove, and then drives roof 3 and remove, and then drives mould 4 and remove.

In the embodiment, specifically, the driving assembly includes a motor 21 and a transmission belt 20, the motor 21 is installed on the water tank 1, a driving gear 22 is fixedly connected to a power output shaft of the motor 21, a driven gear 23 is engaged and connected to the driving gear 22, the driven gear 23 is fixedly sleeved on the lead screws 17, the four lead screws 17 are all fixedly sleeved with belt pulleys 19, and the transmission belt 20 is sleeved on the four belt pulleys 19; through setting up actuating mechanism, during the use, through starter motor 21, make the power output shaft of motor 21 drive the driving gear 22 rotatory, and then the meshing drives driven gear 23 rotatory, and then drives a lead screw 17 rotatory, and then drives all the other lead screws 17 rotations through belt pulley 19, driving belt 20, and then makes four lead screws 17 rotatory simultaneously.

The working principle is as follows: when the material injection molding machine is used specifically, the motor 21 is started, the power output shaft of the motor 21 drives the driving gear 22 to rotate, the driven gear 23 is driven to rotate through meshing, one lead screw 17 is driven to rotate, the other lead screws 17 are driven to rotate through the belt pulleys 19 and the transmission belt 20, the four lead screws 17 are further driven to rotate simultaneously, the four lead screw nuts 18 are further driven to move downwards simultaneously, the top plate 3 and the upper die 4 are further driven to move downwards, the upper die 4 is in contact with the lower die 2, and then material injection molding is carried out between the upper die 4 and the lower die 2 through the material conveying pipe 5.

After the completion of moulding plastics, through starting water pump 13, carry the cavity of bed die 2 with the water in the water tank 1, thereby reduce the temperature of bed die 2, thereby accelerate the shaping of product, water along with in the bed die 2 constantly increases, hot water in the bed die 2 can flow to in the hollow plate 15 through back flow 14, and then spout water through a plurality of shower nozzles, spun water can fall on grid plate 16, make water pass grid plate 16 and fall to 1 bottom of water tank, thereby accomplish the circulation of water, when water and grid plate 16 contact, can give grid plate 16 with heat transfer, make grid plate 16 with heat transfer outside water tank 1, thereby be convenient for dispel the heat to water tank 1 inside, thereby be convenient for reduce the temperature of water tank 1 water-logging, thereby be convenient for reduce the temperature of mould 2, thereby further accelerate the shaping of mould.

After the product is cooled, the motor 21 is started, so that the power output shaft of the motor 21 rotates reversely, and the top plate 3 and the upper die 4 are driven to move upwards through the driving gear 22, the driven gear 23, the lead screw 17 and the lead screw nut 18; then, the air pump 12 is started, so that the air pump 12 continuously conveys air into the square-shaped pipe 6, and further conveys the air into the plurality of piston pipes 7, and as the air is continuously injected into the piston pipes 7, the piston sheets 11 in the piston pipes 7 move upwards, and further drive the connecting rods 10 and the top sheet 9 to move upwards, and the top sheet 9 moving upwards can eject the formed product out of the lower die 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a TV set center injection mold, includes bed die (2), its characterized in that: a top plate (3) is arranged above the lower die (2), an upper die (4) is arranged on the bottom surface of the top plate (3), a material conveying pipe (5) penetrates through the upper die (4), a water tank (1) is mounted on the bottom surface of the lower die (2), and a lifting mechanism for driving the top plate (3) to move up and down is arranged on the water tank (1); the lower die (2) is of a cavity structure, a water pump (13) is mounted on the water tank (1), a water pumping pipe of the water pump (13) extends into the water tank (1), a water outlet pipe of the water pump (13) extends into the lower die (2), and a return pipe (14) is mounted between the lower die (2) and the water tank (1); the lower die (2) is provided with a demoulding mechanism; the inner top surface of the water tank (1) is provided with a hollow plate (15), the bottom surface of the hollow plate (15) is provided with a plurality of spray heads, the lower end of the return pipe (14) is connected with the hollow plate (15), and the water tank (1) is provided with two grid plates (16) in a penetrating manner; the grid plate (16) is made of aluminum alloy, and a water injection pipe is installed on the water tank (1).

2. The television middle frame injection mold according to claim 1, characterized in that: demoulding mechanism includes word venturi tube (6) and air pump (12), word venturi tube (6) is installed in bed die (2), install a plurality of piston pipes (7) on word venturi tube (6), piston pipe (7) run through the top surface of bed die (2), sliding connection has piston piece (11) in piston pipe (7), install connecting rod (10) on the top surface of piston piece (11), top flat (9) are installed to the upper end of connecting rod (10), air pump (12) are installed on bed die (2), the outlet duct of air pump (12) extend in end bed die (2) and with word venturi tube (6) rigid coupling and intercommunication.

3. The television middle frame injection mold according to claim 1, characterized in that: elevating system includes four lead screw (17) and drive assembly, four lead screw (17) all rotate and install the top surface in water tank (1), four all be provided with screw nut (18) on lead screw (17), four screw nut (18) all run through roof (3) and with roof (3) fixed connection.

4. The television middle frame injection mold according to claim 3, wherein: drive assembly includes motor (21) and driving belt (20), install on water tank (1) motor (21), fixedly connected with driving gear (22) on the power output shaft of motor (21), the meshing is connected with driven gear (23) on driving gear (22), driven gear (23) fixed cover is established on lead screw (17), four all fixed cover is equipped with belt pulley (19) on lead screw (17), driving belt (20) cover is established on four belt pulley (19).