CN117841269A - A mold with rapid cooling function - Google Patents

Abstract

The invention belongs to the technical field of dies, in particular to a die with a rapid cooling function, aiming at the problems that products provided by the background technology deform, the cleaning of the products is troublesome, and gaps between an injection molding head and the die can cause heat dissipation and stability of injection molding, the invention provides a scheme which comprises a machine table, wherein the outer wall of the top of the machine table is rotationally connected with a rotary table, and the outer wall of the top of the rotary table is fixedly connected with symmetrically distributed thermoplastic die frames through bolts. According to the invention, the cooling cover plate is turned over, so that a product can be arranged between the thermoplastic die frame and the cooling cover plate, the cooling uniformity of the product is ensured, the problem that the quality is affected due to deformation of the product caused by die stripping is avoided, the hot-pressing injection molding head can be tightly fixed between the two extrusion plates by impacting the extrusion plates through high-pressure gas in the gas receiving pipe, the heat dissipation is reduced, the injection molding stability of the product is improved, the lower drainage plate is driven to move by the air cylinder, the unified cleaning of the product waste is realized, and the cleaning difficulty of the waste is reduced.

Description

A mold with rapid cooling function

Technical Field

The invention relates to the technical field of molds, and in particular to a mold with a rapid cooling function.

Background technique

In the mold industry, various molds and tools are used to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, the mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry".

A tool that makes the blank into a product with a specific shape and size under the action of external force. It is widely used in punching, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or inner cavity shape. The use of a contour shape with a cutting edge can make the blank separate (punch out) according to the shape of the contour line. The use of the inner cavity shape can make the blank obtain a corresponding three-dimensional shape. The mold generally consists of a movable mold and a fixed mold (or a punch and a die), which can be separated or combined. When separated, the product is taken out, and when closed, the blank is injected into the mold cavity for forming. The mold is a precision tool with a complex shape. It bears the expansion force of the blank. It has high requirements for structural strength, rigidity, surface hardness, surface roughness and processing accuracy. The development level of mold production is one of the important indicators of the level of mechanical manufacturing.

In real life, there are many ways to process products with molds, one of which is injection molding, which involves injecting raw materials into a mold and then heating it at high temperature to form it. However, the temperature of the product after injection molding is very high. Although the mold is usually equipped with a cooling structure, whether it is air cooling or water cooling, the product has very little contact surface for cooling, which can easily cause uneven cooling and lead to certain deformation of the product after demolding, affecting the quality of the product.

At the same time, after a period of injection molding, some molds are polluted by the working environment, and a certain gap will be generated between the injection head at the bottom of the hydraulic cylinder and the mold, which will not only cause heat loss, but also easily affect the stability of mold injection molding.

In addition, there is usually a small amount of waste connected to the injection molding position of the product after injection molding, and multiple products are usually produced in one mold, which requires the staff to remove the waste from each product one by one, increasing the difficulty of product cleaning.

Summary of the invention

In view of the deficiencies of the prior art, the present invention provides a mold with a rapid cooling function, which overcomes the deficiencies of the prior art and effectively solves the problems of product deformation, difficult product cleaning, heat loss caused by the gap between the injection head and the mold, and injection stability.

In order to achieve the above object, the present invention adopts the following technical solutions:

A mold with a rapid cooling function comprises a machine platform, wherein the top outer wall of the machine platform is rotatably connected to a rotating platform, and the top outer wall of the rotating platform is fixedly connected to a symmetrically distributed thermoplastic mold frame by bolts, the outer wall on one side of the thermoplastic mold frame is connected to a symmetrically distributed liquid inlet pipe, and the outer wall on the other side of the thermoplastic mold frame is connected to a symmetrically distributed handover pipe, the outer wall at one end of the handover pipe is connected to a cooling cover plate, and the top outer wall of the cooling cover plate is connected to a symmetrically distributed liquid discharge pipe;

Through the above scheme, the coolant generated by the water cooler can flow from the liquid inlet pipe into the thermoplastic mold frame, and flow into the cooling cover plate through the handover pipe. After the product is injection molded, the product can be set between the thermoplastic mold frame and the cooling cover plate by flipping the cooling cover plate, so that the bottom and top of the product can be cooled in the first time, ensuring the uniformity of product cooling and avoiding the problem of product deformation during demolding that affects quality.

Sliding frames are welded to the inner walls of both sides of the thermoplastic mold frame, and the inner walls of the sliding frames are slidably connected to the extrusion plates, and the outer wall of one side of the sliding frame is connected to the air pipe;

Through the above scheme, when the hydraulic cylinder drives the hot-press injection molding head to move downward and combine with the thermoplastic mold frame, after the air pipe is connected to the air pump, the high-pressure gas in the air pipe impacts the extrusion plate, and the extrusion plate slides along the inner wall of the slide frame, which can tightly fix the hot-press injection molding head between the two extrusion plates, thereby ensuring the sealing of the product injection, reducing heat loss, and improving the stability of the product injection.

A cylinder is installed on the inner wall of one side of the thermoplastic mold frame, and the cylinder piston rod is connected to a lower guide plate. Product forming frames are welded to the inner wall of the bottom of the thermoplastic mold frame and are distributed at equal distances. An upper guide plate is arranged on the top of the lower guide plate, and a raw material injection head is penetrated and connected to the outer wall of the top of the upper guide plate. A sealing cover is arranged on the top of the product forming frame.

Through the above scheme, after the product is injection molded, the product molding frame and the sealing cover as well as the lower guide plate and the upper guide plate will be separated from each other, and the lower guide plate is driven to move by the cylinder, and the waste remaining in the groove of the lower guide plate can be uniformly disconnected from the product in the product molding frame, thereby realizing unified cleaning of product waste and reducing the difficulty of waste cleaning.

Preferably, a connecting plate is welded to the outside of the top of the cooling cover plate, and an electric telescopic rod is hinged between the connecting plate and the thermoplastic mold frame.

Preferably, an arm is welded to the outer wall of the top of the machine platform, and a hydraulic cylinder is installed on the outer wall of one end of the arm, and the piston rod of the hydraulic cylinder is connected to a hot pressing injection molding head.

Preferably, the upper guide plate and the sealing cover are both mounted on the bottom outer wall of the hot pressing injection molding head.

Preferably, the bottom outer wall of the hot-press injection molding head is provided with symmetrically distributed buffer spring components, and the top outer wall of the thermoplastic mold frame is provided with symmetrically distributed positioning holes, and the size of the positioning column in the buffer spring component is matched with the size of the positioning hole.

Preferably, a column is welded to the top outer wall of the rotating table, and the top outer wall of the column is connected to a stepper motor via a coupling, and the stepper motor is mounted on the top outer wall of the table via a fixing frame.

Preferably, one of the thermoplastic mold frames is arranged at the bottom of the hot pressure injection molding head.

Preferably, the outer wall of one end of the air connecting pipe is connected to an air pump with a vacuum solenoid valve.

Preferably, a water cooler is installed inside the machine, and the liquid inlet pipe and the liquid discharge pipe are both connected to the inside of the water cooler.

Preferably, a PLC controller is fixedly connected to an outer wall of one side of the hydraulic cylinder by bolts, and the PLC controller is connected to the cylinder, the electric telescopic rod, the stepper motor and the hydraulic cylinder by signal lines.

The beneficial effects of the present invention are:

1. In the mold with rapid cooling function of the present invention, the coolant generated by the water cooler can flow from the liquid inlet pipe into the thermoplastic mold frame, and then flow into the cooling cover plate through the handover pipe. After the product is injection molded, the product can be placed between the thermoplastic mold frame and the cooling cover plate by turning over the cooling cover plate, so that the bottom and top of the product can be cooled in the first time, ensuring the uniformity of product cooling and avoiding the problem of product quality being affected by deformation during demolding;

2. The mold with rapid cooling function of the present invention, when the hydraulic cylinder drives the hot-pressing injection molding head to move downward and combine with the hot-plastic mold frame, after the air pipe is connected to the air pump, the high-pressure gas in the air pipe impacts the extrusion plate, and the extrusion plate slides along the inner wall of the slide frame, which can tightly fix the hot-pressing injection molding head between the two extrusion plates, thereby ensuring the sealing of the product injection, reducing heat loss, and improving the stability of the product injection.

3. According to the mold with rapid cooling function of the present invention, after the product is injection molded, the product molding frame and the sealing cover as well as the lower guide plate and the upper guide plate will be separated from each other, and the lower guide plate is driven to move by the cylinder, and the waste remaining in the groove of the lower guide plate can be uniformly disconnected from the product in the product molding frame, thereby realizing the unified cleaning of product waste and reducing the difficulty of waste cleaning.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a mold with a rapid cooling function proposed by the present invention;

FIG2 is a schematic diagram of a hydraulic cylinder connection of a mold with a rapid cooling function proposed by the present invention;

FIG3 is a second schematic diagram of a hydraulic cylinder connection of a mold with a rapid cooling function proposed by the present invention;

FIG4 is a schematic diagram of the unfolded structure of a thermoplastic mold frame of a mold with a rapid cooling function proposed by the present invention;

FIG5 is a schematic diagram of a thermoplastic mold frame connection structure of a mold with a rapid cooling function proposed by the present invention;

FIG6 is a schematic diagram of the closed connection between a product forming frame and a sealing cover as well as a lower guide plate and an upper guide plate of a mold with a rapid cooling function proposed by the present invention;

FIG. 7 is a schematic diagram of the internal structure of a thermoplastic mold frame of a mold with a rapid cooling function proposed by the present invention.

In the figure: 1. machine table; 2. rotating table; 3. thermoplastic mold frame; 4. liquid inlet pipe; 5. handover pipe; 6. cooling cover plate; 7. liquid discharge pipe; 8. slide frame; 9. extrusion plate; 10. air connection pipe; 11. cylinder; 12. lower drainage plate; 13. product molding frame; 14. upper drainage plate; 15. raw material injection head; 16. sealing cover; 17. connecting plate; 18. electric telescopic rod; 19. arm; 20. hydraulic cylinder; 21. hot pressing injection head; 22. buffer spring part; 23. column; 24. stepping motor; 25. water cooler; 26. PLC controller.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

Embodiment 1, referring to Figures 1-5, a mold with a rapid cooling function includes a machine table 1, the top outer wall of the machine table 1 is rotatably connected to a rotating table 2, and the top outer wall of the rotating table 2 is fixedly connected to a symmetrically distributed thermoplastic mold frame 3 by bolts, one side outer wall of the thermoplastic mold frame 3 is connected to a symmetrically distributed liquid inlet pipe 4, and the other side outer wall of the thermoplastic mold frame 3 is connected to a symmetrically distributed transfer pipe 5, one end outer wall of the transfer pipe 5 is connected to a cooling cover plate 6, and the top outer wall of the cooling cover plate 6 is connected to a symmetrically distributed liquid discharge pipe 7.

5 , a connecting plate 17 is welded to the top of the cooling cover plate 6 , and an electric telescopic rod 18 is hinged between the connecting plate 17 and the thermoplastic mold frame 3 .

1 , a water cooler 25 is installed inside the machine 1 , and the liquid inlet pipe 4 and the liquid outlet pipe 7 are both connected to the inside of the water cooler 25 .

In this embodiment, the coolant generated by the water cooler 25 can flow from the liquid inlet pipe 4 into the thermoplastic mold frame 3, and flow into the cooling cover plate 6 through the transfer pipe 5. After the product is injection molded, the product can be set between the thermoplastic mold frame 3 and the cooling cover plate 6 by flipping the cooling cover plate 6, so that the bottom and top of the product can be cooled in the first time, ensuring the uniformity of product cooling and avoiding the problem of product deformation during demolding that affects quality.

Embodiment 2, referring to FIG. 4 , a mold with a rapid cooling function, the inner walls of both sides of the thermoplastic mold frame 3 are welded with sliding frames 8 , and the inner wall of the sliding frame 8 is slidably connected to an extrusion plate 9 , and the outer wall of one side of the sliding frame 8 is connected to an air connection pipe 10 .

4-5 , the outer wall of one end of the air connection pipe 10 is connected to an air pump with a vacuum solenoid valve.

In this embodiment, when the hydraulic cylinder 20 drives the hot-pressing injection molding head 21 to move downward and combine with the thermoplastic mold frame 3, the air connecting pipe 10 is connected to the air pump, and the high-pressure gas in the air connecting pipe 10 impacts the extrusion plate 9, and the extrusion plate 9 will slide along the inner wall of the slide frame 8, so that the hot-pressing injection molding head 21 can be tightly fixed between the two extrusion plates 9, thereby ensuring the sealing of the product injection, reducing heat loss, and improving the stability of the product injection.

Embodiment 3, referring to Figures 6-7, a mold with a rapid cooling function, a cylinder 11 is installed on the inner wall of one side of the thermoplastic mold frame 3, and the piston rod of the cylinder 11 is connected to the lower guide plate 12, and the product forming frames 13 distributed equidistantly are welded to the inner wall of the bottom of the thermoplastic mold frame 3, an upper guide plate 14 is arranged on the top of the lower guide plate 12, and a raw material injection head 15 is connected to the outer wall of the top of the upper guide plate 14, and a sealing cover 16 is arranged on the top of the product forming frame 13.

In this embodiment, after the product is injection molded, the product molding frame 13 and the sealing cover 16 as well as the lower guide plate 12 and the upper guide plate 14 will be separated from each other, and the lower guide plate 12 is driven to move by the cylinder 11, and the waste remaining in the groove of the lower guide plate 12 can be uniformly disconnected from the product in the product molding frame 13, thereby realizing unified cleaning of product waste and reducing the difficulty of waste cleaning.

1-2 , an arm 19 is welded to the outer wall of the top of the machine 1 , and a hydraulic cylinder 20 is installed on the outer wall of one end of the arm 19 , and a hot pressing injection molding head 21 is connected to the piston rod of the hydraulic cylinder 20 .

3 , the upper guide plate 14 and the sealing cover 16 are both mounted on the bottom outer wall of the hot pressing injection molding head 21 .

2 , the bottom outer wall of the hot-press injection molding head 21 is provided with symmetrically distributed buffer spring members 22 , and the top outer wall of the thermoplastic mold frame 3 is provided with symmetrically distributed positioning holes, and the size of the positioning column in the buffer spring member 22 matches the size of the positioning hole.

1 , a column 23 is welded to the top outer wall of the rotating table 2 , and a stepper motor 24 is connected to the top outer wall of the column 23 via a coupling. The stepper motor 24 is mounted on the top outer wall of the machine table 1 via a fixing frame.

3 , one of the thermoplastic mold frames 3 is disposed at the bottom of the hot press injection molding head 21 .

1-7 , a PLC controller 26 is fixedly connected to the outer wall of one side of the hydraulic cylinder 20 by bolts, and the PLC controller 26 is connected to the cylinder 11 , the electric telescopic rod 18 , the stepper motor 24 and the hydraulic cylinder 20 by signal lines.

Working principle: When the stepper motor 24 drives the rotating table 2 under the column 23 to rotate and move one of the thermoplastic mold frames 3 to the bottom of the hot-pressing injection molding head 21, the hydraulic cylinder 20 drives the hot-pressing injection molding head 21 to move downward, so that the hot-pressing injection molding head 21 is combined with the thermoplastic mold frame 3;

Next, the air pipe 10 passes high-pressure gas to impact the extrusion plate 9, and the extrusion plate 9 will slide along the inner wall of the slide frame 8, and the hot-pressing injection molding head 21 will be tightly fixed between the two extrusion plates 9. At this time, the product molding frame 13 and the sealing cover 16 as well as the lower guide plate 12 and the upper guide plate 14 will be closed to each other, and the raw material will be injected from the raw material injection head 15 into the groove in the guide plate and finally flow into the gap between the product molding frame 13 and the sealing cover 16. The raw material is heated by the heater in the hot-pressing injection molding head 21, and the raw material is heated and molded;

Afterwards, the hot-pressing injection molding head 21 is moved upward and reset, and the product molding frame 13 and the sealing cover 16 as well as the lower guide plate 12 and the upper guide plate 14 are separated from each other;

When the piston rod of the electric telescopic rod 18 is extended, the cooling cover plate 6 will flip into the thermoplastic mold frame 3, and the coolant produced by the water cooler 25 will flow into the thermoplastic mold frame 3 from the liquid inlet pipe 4, and flow into the cooling cover plate 6 along the transfer pipe 5. The coolant after absorbing heat will eventually flow back to the water cooler 25, and the coolant in the thermoplastic mold frame 3 and the cooling cover plate 6 will cool the bottom and top of the product at the same time;

Then, the cylinder 11 drives the lower guide plate 12 to move, and the waste materials remaining in the groove of the lower guide plate 12 can be uniformly disconnected from the products in the product forming frame 13, and finally the products are taken out from the product forming frame 13 and the waste materials are taken out from the lower guide plate 12 in turn.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a mould with quick cooling function, includes board (1), its characterized in that, board (1) top outer wall rotates and is connected with revolving stage (2), and revolving stage (2) top outer wall is through bolt fixedly connected with symmetrical distribution's thermoplastic die carrier (3), thermoplastic die carrier (3) one side outer wall is connected with symmetrical distribution's feed liquor pipe (4), and thermoplastic die carrier (3) opposite side outer wall is connected with symmetrical distribution's handing-over pipe (5), handing-over pipe (5) one end outer wall is connected with cooling cover plate (6), and cooling cover plate (6) top outer wall is connected with symmetrical distribution's drain pipe (7);

the inner walls of two sides of the thermoplastic die carrier (3) are welded with sliding frames (8), the inner walls of the sliding frames (8) are connected with extrusion plates (9) in a sliding manner, and the outer wall of one side of each sliding frame (8) is connected with an air connecting pipe (10);

the plastic die carrier (3) is installed cylinder (11) on one side inner wall, and cylinder (11) piston rod is connected with drainage board (12) down, the welding of thermoplastic die carrier (3) bottom inner wall has equidistant product shaping frame (13) that distribute, drainage board (12) top is provided with drainage board (14) down, and goes up drainage board (14) top outer wall through connection has raw materials injection head (15), product shaping frame (13) top is provided with sealed lid (16).

2. A mould with rapid cooling function according to claim 1, characterized in that the top of the cooling cover plate (6) is welded with a connecting plate (17), and an electric telescopic rod (18) is hinged between the connecting plate (17) and the thermoplastic mould frame (3).

3. The die with the rapid cooling function according to claim 1, wherein an arm support (19) is welded on the outer wall of the top of the machine table (1), a hydraulic oil cylinder (20) is installed on the outer wall of one end of the arm support (19), and a piston rod of the hydraulic oil cylinder (20) is connected with a hot-pressing injection molding head (21).

4. A mould with rapid cooling function according to claim 1, characterized in that the upper drainage plate (14) and the sealing cover (16) are both mounted on the bottom outer wall of the hot-press injection head (21).

5. The mold with the rapid cooling function according to claim 4, wherein symmetrically distributed buffer spring pieces (22) are installed on the outer wall of the bottom of the hot-pressing injection molding head (21), symmetrically distributed positioning holes are formed in the outer wall of the top of the thermoplastic mold frame (3), and the size of positioning columns in the buffer spring pieces (22) is matched with the size of the positioning holes.

6. The mold with the rapid cooling function according to claim 1, wherein the outer wall of the top of the rotary table (2) is welded with a stand column (23), the outer wall of the top of the stand column (23) is connected with a stepping motor (24) through a coupler, and the stepping motor (24) is installed on the outer wall of the top of the machine table (1) through a fixing frame.

7. A mould with rapid cooling according to claim 1, characterized in that one of the thermoplastic mould frames (3) is arranged at the bottom of the hot-press injection head (21).

8. A mould with rapid cooling function according to claim 1, characterized in that the outer wall of one end of the gas pipe (10) is connected with a gas pump with a vacuum electromagnetic valve.

9. The mold with the rapid cooling function according to claim 1, wherein the water cooling machine (25) is installed inside the machine table (1), and the liquid inlet pipe (4) and the liquid outlet pipe (7) are connected inside the water cooling machine (25).

10. A mould with a rapid cooling function according to claim 3, wherein the outer wall of one side of the hydraulic cylinder (20) is fixedly connected with a PLC (26) through bolts, and the PLC (26) is connected with the cylinder (11), the electric telescopic rod (18), the stepping motor (24) and the hydraulic cylinder (20) through signal wires.