Mold locking device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machine mold locking equipment, in particular to an injection molding machine mold locking device. Comprising a supporting table, a mounting plate, a lower mold, a sliding plate, an upper mold, an injection molding opening, an electric push rod, a fixing plate and connecting rods, the mounting plate is mounted on the supporting table, the lower mold is mounted on the mounting plate, four connecting rods are slidably arranged on the supporting table and penetrate through the supporting table, the sliding plate is fixedly connected among the four connecting rods, and the upper mold is mounted on the sliding plate; the upper mold is located above the lower mold, two injection molding openings are connected to the upper mold, an electric push rod is installed in the supporting table, a fixing plate is installed on a telescopic rod of the electric push rod, and the four connecting rods are installed on the fixing plate. And by starting the electric telescopic rod, the telescopic rod of the electric telescopic rod extends to drive the connecting plate to move downwards, the telescopic guide rod is extended, and the thermal insulation curtain is pulled open, so that the upper mold and the lower mold can be isolated, workers are prevented from being scalded due to mistaken touch, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding machine clamping equipment, and in particular to an injection molding machine clamping device. Background Technology

[0002] The clamping device of an injection molding machine is a crucial component in the injection molding process. Its main function is to firmly close and keep the mold closed during the injection stage to withstand the injection pressure and ensure precise alignment of the mold during the opening and closing process.

[0003] Patent CN221562165U discloses a mold-locking mechanism for an injection molding machine. It includes an operating table with a lower mold positioned at the top center and an upper mold positioned above it. First strip plates are symmetrically arranged on the top left and right sides of the lower mold, and second strip plates are symmetrically arranged on the bottom left and right sides of the upper mold. When using this patent for mold locking, the first and second strip plates are engaged, while a connecting block fits into a connecting groove and a square block fits into a recess. A receiver, photoelectric transmitter, and controller activate a motor, driving a screw to rotate, causing a limiting tube to penetrate into a circular hole. The connecting block is then fixed in the connecting groove, completing the locking between the upper and lower molds. However, in this patent, the upper and lower molds are exposed to the air, and the injection molding material is molten plastic with a high temperature. After injection molding, the overall temperature of the upper and lower molds rises rapidly. With the upper and lower molds exposed, this increases the risk of accidental contact by the operator, potentially leading to severe burns.

[0004] Therefore, there is a need for an injection molding machine clamping device that can isolate the high-temperature region of injection molding. Utility Model Content

[0005] In order to overcome the disadvantages of the above-mentioned patents, where the upper and lower molds are exposed to the air and the injection material is molten plastic with a high temperature, the overall temperature of the upper and lower molds will rise rapidly after injection. When the upper and lower molds are exposed, it will increase the risk of operators accidentally touching them and causing serious burns. This utility model provides an injection molding machine clamping device that can isolate the high-temperature injection area.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: A molding clamping device for an injection molding machine, comprising a support platform, a mounting plate, a lower mold, a sliding plate, an upper mold, an injection port, an electric push rod, a fixed plate, and connecting rods. The mounting plate is mounted on the support platform, and the lower mold is mounted on the mounting plate. Four connecting rods are slidably arranged on the support platform, passing through the support platform. A sliding plate is fixedly connected between the four connecting rods. The upper mold is mounted on the sliding plate, located above the lower mold. Two injection ports are connected to the upper mold. An electric push rod is installed inside the support platform, and a fixed plate is mounted on the telescopic rod of the electric push rod. The four connecting rods are mounted on the fixed plate. The device is characterized by further comprising a heat insulation curtain, a connecting plate, an electric telescopic rod, and a telescopic guide rod. The electric telescopic rod is mounted on the sliding plate, located to the right of the upper mold. A telescopic guide rod is fixedly connected to the sliding plate, located to the left of the upper mold. A connecting plate is provided between the telescopic rod of the electric telescopic rod and the telescopic guide rod. A heat insulation curtain is provided between the connecting plate and the sliding plate, and the upper mold is located inside the heat insulation curtain.

[0007] As a preferred technical solution of this utility model, it also includes a temperature detector, a temperature display and an indicator light. The temperature detector is installed on the upper mold, the temperature display is installed on the sliding plate, the temperature display is electrically connected to the temperature detector, and an indicator light is installed on the temperature display and electrically connected to the temperature display.

[0008] As a preferred technical solution of this utility model, it also includes a support plate, a refrigeration box, a water pump and a refrigeration pipe. The support plate is fixedly connected to the mounting plate, the refrigeration box is mounted on the support plate, two water pumps are mounted on the refrigeration box, and a refrigeration pipe is connected between the two water pumps. The refrigeration pipe is wound around the lower mold.

[0009] As a preferred technical solution of this utility model, it also includes corner protectors, with multiple corner protectors fitted onto the upper part of the sliding plate.

[0010] As a preferred technical solution of this utility model, it also includes a linear bearing, with a linear bearing installed on the support platform, and the connecting rod sliding within the adjacent linear bearing.

[0011] As a preferred technical solution of this utility model, it also includes a heat insulation shell, which is fixedly connected to the lower mold, and the cooling pipe is located between the heat insulation shell and the lower mold.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By activating the electric telescopic rod, the telescopic rod extends and drives the connecting plate to move downward, the telescopic guide rod is extended, and the heat insulation curtain is pulled open, thereby isolating the upper mold from the lower mold, preventing workers from being burned due to accidental contact, and improving safety.

[0013] 2. The temperature of the upper mold is monitored in real time by a temperature detector and fed back to the temperature display. The temperature display shows the temperature of the upper mold. When the temperature is too high or too low, the indicator light will show different colors, which can remind the operator to pay attention to the high temperature and reduce the risk of burns. Precise control of the cooling time can prevent premature demolding.

[0014] 3. By starting the water pumps, the two pumps respectively draw the condensate from the refrigeration box and the refrigeration pipes, thus forming a condensate circulation system, which accelerates the transformation of plastic from a molten state to a solid state, shortens the molding time, and improves the overall production efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the support platform, mounting plate, and lower mold of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of the electric push rod, fixing plate, and connecting rod of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the temperature display, indicator light, and heat insulation curtain of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the connecting plate, electric telescopic rod, and telescopic guide rod of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the support plate, refrigeration box, and refrigeration pipe of this utility model.

[0021] The markings in the diagram are as follows: 1-Support platform, 2-Mounting plate, 3-Lower mold, 4-Sliding plate, 5-Upper mold, 50-Injection port, 6-Electric push rod, 7-Fixing plate, 8-Connecting rod, 9-Temperature detector, 10-Temperature display, 11-Indicator light, 12-Insulation curtain, 13-Connecting plate, 14-Electric telescopic rod, 15-Telescopic guide rod, 16-Support plate, 17-Refrigeration box, 18-Refrigeration pipe, 1801-Water pump, 19-Corner protector, 20-Linear bearing, 21-Insulation shell. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0023] Example 1: A mold clamping device for an injection molding machine, see reference. Figures 1-6As shown, the system includes a support platform 1, a mounting plate 2, a lower mold 3, a sliding plate 4, an upper mold 5, injection ports 50, an electric push rod 6, a fixing plate 7, and connecting rods 8. The mounting plate 2 is bolted to the top of the support platform 1. The lower mold 3 is mounted on the top of the mounting plate 2. Connecting rods 8 are symmetrically slidably arranged on both sides of the top of the support platform 1, passing through the support platform 1. A sliding plate 4 is fixedly connected between the top ends of the four connecting rods 8. The upper mold 5 is mounted in the middle of the sliding plate 4, located above the lower mold 3. Two injection ports 50 are connected to the top of the upper mold 5. The electric push rod 6 is bolted to the inside of the support platform 1. A fixed plate 7 is installed on the telescopic rod of the electric push rod 6. The ends of four connecting rods 8 are installed on the fixed plate 7. It also includes a heat insulation curtain 12, a connecting plate 13, an electric telescopic rod 14, and a telescopic guide rod 15. The electric telescopic rod 14 is installed on the bottom right side of the sliding plate 4 by bolt connection. The electric telescopic rod 14 is located to the right of the upper mold 5. The telescopic guide rod 15 is fixed to the bottom left side of the sliding plate 4. The telescopic guide rod 15 is located to the left of the upper mold 5. A connecting plate 13 is provided between the telescopic rod of the electric telescopic rod 14 and the bottom end of the telescopic guide rod 15. A heat insulation curtain 12 is provided between the connecting plate 13 and the sliding plate 4. The upper mold 5 is located inside the heat insulation curtain 12.

[0024] See Figure 1 As shown, it also includes corner protectors 19, with corner protectors 19 fitted on all four corners of the sliding plate 4.

[0025] See Figure 1 As shown, it also includes linear bearings 20. Linear bearings 20 are symmetrically installed on the left and right sides of the top of the support platform 1, and the connecting rod 8 slides in the adjacent linear bearings 20.

[0026] When the device is to be used for injection molding, the electric push rod 6 is activated. The telescopic rod of the electric push rod 6 drives the fixed plate 7 and the connecting rod 8 to move downwards. The connecting rod 8 then drives the sliding plate 4 and the upper mold 5 to move downwards. After the upper mold 5 and the lower mold 3 are engaged, the upper mold 5 is connected to the external injection molding machine, so that the external injection molding machine injects molten plastic into the upper mold 5 and the lower mold 3 through the injection port 50. During injection molding, the electric telescopic rod 14 is activated. The telescopic rod of the electric telescopic rod 14 extends, driving the connecting plate 13 to move downwards. The telescopic guide rod 15 is extended, and the heat insulation curtain 12 is pulled open, thereby isolating the upper mold 5 and the lower mold 3 to prevent workers from being burned due to accidental contact, thus improving safety. The linear bearing 20 reduces the friction between the support platform 1 and the connecting rod 8, improving efficiency and reducing energy loss. The corner protectors 19 protect the four corners of the sliding plate 4, reducing direct contact between the corners of the sliding plate 4 and the surrounding environment, thereby reducing wear.

[0027] Example 2: Based on Example 1, refer to Figures 1-5As shown, it also includes a temperature detector 9, a temperature display 10, and an indicator light 11. The temperature detector 9 is installed on the lower front side of the upper mold 5 by means of bolt connection. The temperature display 10 is installed on the middle front side of the sliding plate 4 by means of bolt connection. The temperature display 10 is electrically connected to the temperature detector 9. The indicator light 11 is installed on the top of the temperature display 10 by means of bolt connection. The indicator light 11 is electrically connected to the temperature display 10.

[0028] During injection molding, the temperature of the upper mold 5 is monitored in real time by the temperature detector 9 and fed back to the temperature display 10, so that the temperature display 10 displays the temperature data of the upper mold 5. When the temperature is too high, the indicator light 11 will show red, and when the temperature drops to a suitable degree Celsius, the indicator light 11 will show green. This can remind the operator to pay attention to the high temperature, reduce the risk of burns, and accurately control the cooling time to prevent premature demolding.

[0029] See Figure 6 As shown, it also includes a support plate 16, a refrigeration box 17, a water pump 1801, and a refrigeration pipe 18. The support plate 16 is installed on the mounting plate 2 by welding. The refrigeration box 17 is installed on the support plate 16. The water pumps 1801 are installed symmetrically on the top of the refrigeration box 17 by bolt connection. The two water pumps 1801 are connected by a refrigeration pipe 18. The refrigeration pipe 18 is filled with refrigerant and surrounds the outside of the lower mold 3.

[0030] See Figure 1 As shown, it also includes a heat insulation shell 21. The heat insulation shell 21 is welded to the upper part of the lower mold 3, and the cooling pipe 18 is located between the heat insulation shell 21 and the lower mold 3.

[0031] During the cooling process, the water pump 1801 is started. The two water pumps 1801 respectively draw the condensate from the refrigeration box 17 and the refrigeration pipe 18 to form a condensate circulation system, which accelerates the transformation of plastic from molten to solid state, shortens molding time, and improves overall production efficiency. The heat insulation shell 21 can prevent cold air from escaping and accelerate the cooling efficiency.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A molding clamping device for an injection molding machine, comprising a support platform (1), a mounting plate (2), a lower mold (3), a sliding plate (4), an upper mold (5), an injection port (50), an electric push rod (6), a fixing plate (7), and connecting rods (8), wherein the support platform (1) is mounted with the mounting plate (2), the lower mold (3) is mounted with the mounting plate (2), four connecting rods (8) are slidably arranged on the support platform (1), the connecting rods (8) penetrate the support platform (1), the sliding plate (4) is fixedly connected between the four connecting rods (8), the upper mold (5) is mounted on the sliding plate (4), the upper mold (5) is located above the lower mold (3), two injection ports (50) are connected to the upper mold (5), the electric push rod (6) is installed inside the support platform (1), the fixing plate (7) is mounted on the telescopic rod of the electric push rod (6), and the four connecting rods (8) are mounted on the fixing plate (7), characterized in that, It also includes a heat insulation curtain (12), a connecting plate (13), an electric telescopic rod (14), and a telescopic guide rod (15). The electric telescopic rod (14) is installed on the sliding plate (4) and is located to the right of the upper mold (5). The telescopic guide rod (15) is fixed on the sliding plate (4) and is located to the left of the upper mold (5). A connecting plate (13) is provided between the telescopic rod of the electric telescopic rod (14) and the telescopic guide rod (15). A heat insulation curtain (12) is provided between the connecting plate (13) and the sliding plate (4). The upper mold (5) is located inside the heat insulation curtain (12).

2. The injection molding machine clamping device according to claim 1, characterized in that, It also includes a temperature detector (9), a temperature display (10) and an indicator light (11). The temperature detector (9) is installed on the upper mold (5), and the temperature display (10) is installed on the sliding plate (4). The temperature display (10) is electrically connected to the temperature detector (9), and the indicator light (11) is installed on the temperature display (10). The indicator light (11) is electrically connected to the temperature display (10).

3. The injection molding machine clamping device according to claim 2, characterized in that, It also includes a support plate (16), a refrigeration box (17), a water pump (1801) and a refrigeration pipe (18). The support plate (16) is fixed on the mounting plate (2), the refrigeration box (17) is installed on the support plate (16), two water pumps (1801) are installed on the refrigeration box (17), and a refrigeration pipe (18) is connected between the two water pumps (1801). The refrigeration pipe (18) is wound around the lower mold (3).

4. The injection molding machine clamping device according to claim 3, characterized in that, It also includes corner protectors (19), and multiple corner protectors (19) are fitted on the upper part of the sliding plate (4).

5. A mold clamping device for an injection molding machine according to claim 4, characterized in that, It also includes a linear bearing (20), which is mounted on the support platform (1), and the connecting rod (8) slides within the adjacent linear bearing (20).

6. A mold clamping device for an injection molding machine according to claim 5, characterized in that, It also includes an insulation shell (21), the insulation shell (21) is fixedly attached to the lower mold (3), and the refrigeration pipe (18) is located between the insulation shell (21) and the lower mold (3).

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