Automatic mold opening device

By using a combination of hydraulic cylinders and motor-driven gears and racks, along with a coolant circulation system, automated mold demolding and rapid cooling are achieved, solving the problems of cumbersome and inefficient traditional mold operation and improving production efficiency.

CN224183650UActive Publication Date: 2026-05-01SUZHOU HUIREN MECHANICAL & ELECTRICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HUIREN MECHANICAL & ELECTRICAL CO LTD
Filing Date
2025-04-14
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional mold opening and demolding methods are cumbersome, reliant on manpower, and inefficient, resulting in low production efficiency.

Method used

The upper and lower molds are separated by a hydraulic cylinder, and the demolding is automated by a motor driving the gears and racks to mesh. At the same time, the cooling components circulate cooling liquid to accelerate the molding of raw materials.

Benefits of technology

It improves the automation level of mold demolding and the efficiency of raw material forming, simplifies the operation process, reduces manpower requirements, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of mold opening devices, and discloses an automatic mold opening device which comprises a base, a supporting frame is fixedly connected to the side wall of the base, a hydraulic cylinder is arranged on the side wall of the supporting frame, an upper mold is connected to the side wall of the supporting frame in a sliding mode, and the output end of the hydraulic cylinder is connected with the upper mold. A lower mold is fixedly connected to the side wall of the base, a jacking assembly is arranged in the base, and a cooling assembly is arranged on the side wall of the base; the jacking assembly comprises a top plate, the side wall of the top plate is slidably connected to the interior of the lower mold, and a sleeve rod is fixedly connected to the interior of the base. According to the utility model, after the mold is manufactured, the hydraulic cylinder is used for driving the upper mold to be separated from the lower mold, and the motor is used for driving the rotating rod, the gear, the rack and other components to cooperatively operate, so that the mold in the lower mold is ejected out, the problems of complicated operation and low ejection efficiency during demolding of a traditional mold are solved, and the automation degree of demolding of the mold is improved.
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Description

Technical Field

[0001] This utility model relates to the field of mold opening devices, and in particular to an automatic mold opening device. Background Technology

[0002] Against the backdrop of the booming development of modern manufacturing, the efficiency and quality of mold production are directly related to product competitiveness and enterprise economic benefits. The mold opening and demolding process is a crucial link in the entire production process, and its ease of operation and efficiency play a key role in improving overall production efficiency.

[0003] In the field of mold opening and demolding, some traditional techniques rely on manual operation. Workers manually operate levers, using the torque of the levers to pry the upper mold apart from the lower mold, and then manually remove the formed mold from the lower mold. Other more complex traditional techniques use a motor-driven belt pulley system. The motor's rotation drives the pulley, which in turn drives the transmission components connected to the upper mold, thus opening and closing the mold. However, this method requires more manual adjustment and monitoring, making the operation process more complex.

[0004] However, these traditional mold opening and demolding methods are cumbersome to operate and have low ejection efficiency. The manual operation of the levers not only requires workers to have great physical strength, but also requires workers to spend a lot of time and energy to control the force and direction of the levers to ensure that the upper mold separates smoothly. This makes the whole mold opening process very cumbersome. Therefore, an automatic mold opening device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic mold opening device, which aims to improve the problems of cumbersome operation and low ejection efficiency when demolding molds in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic mold opening device includes a base, a support frame fixedly connected to the side wall of the base, a hydraulic cylinder provided on the side wall of the support frame, an upper mold slidably connected to the side wall of the support frame, an output end of the hydraulic cylinder connected to the upper mold, a lower mold fixedly connected to the side wall of the base, a lifting component provided inside the base, and a cooling component provided on the side wall of the base.

[0008] The lifting assembly includes a top plate, the side wall of which is slidably connected to the inside of the lower mold. A sleeve rod is fixedly connected inside the base, a connecting rod is slidably connected inside the sleeve rod, the side wall of the connecting rod is fixedly connected to the bottom of the top plate, a rack is fixedly connected to the side wall of the connecting rod, a fixed frame is fixedly connected to the side wall of the sleeve rod, a rotating rod is rotatably connected inside the fixed frame, a gear is fixedly connected to the side wall of the rotating rod, and a motor is provided on the side wall of the fixed frame.

[0009] As a further description of the above technical solution:

[0010] The cooling assembly includes a water tank, a cooler is fixedly connected to the side wall of the water tank, and a water pump is fixedly connected to the side wall of the water tank.

[0011] As a further description of the above technical solution:

[0012] The water pump has a fixed pipe fixedly connected to its input end, and one side wall of the fixed pipe is fixedly connected to the inside of the water tank.

[0013] As a further description of the above technical solution:

[0014] The output end of the water pump is fixedly connected to a conveying pipe, and the side wall of the lower mold is fixedly connected to a connecting pipe. The conveying pipe is connected to the connecting pipe.

[0015] As a further description of the above technical solution:

[0016] A second water pump is fixedly connected to the side wall of the water tank, and a second fixed pipe is fixedly connected to the input end of the second water pump.

[0017] As a further description of the above technical solution:

[0018] The two side walls of the fixed pipe are fixedly connected to the inside of the water tank, and the output end of the water pump is fixedly connected to the delivery pipe.

[0019] As a further description of the above technical solution:

[0020] A second connecting pipe is fixedly connected to the side wall of the upper mold, and the second conveying pipe is connected to the second connecting pipe;

[0021] As a further description of the above technical solution:

[0022] The rack meshes with the gear, and the motor output is connected to the rotating rod.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, after the mold is made, the hydraulic cylinder is started to move the upper mold and separate it from the lower mold. Then the motor is started to make the rotating rod rotate in the fixed frame, which drives the gear. The gear meshes with the rack, and the rack drives the connecting rod to slide in the sleeve rod, raising the top plate to eject the mold in the lower mold. This solves the problem of cumbersome operation and low ejection efficiency when demolding traditional molds. The above technical solution improves the automation level of mold demolding.

[0025] 2. In this utility model, the cooler cools the liquid in the water tank, and the water pump is started to draw the liquid in the water tank through the fixed pipe and send it to the lower mold through the conveying pipe and the connecting pipe. At the same time, the water pump is started to draw the liquid through the fixed pipe and send it to the upper mold through the conveying pipe and the connecting pipe to accelerate the molding of the raw material. This solves the problem of the mold not dissipating heat in time. The above technical solution improves the molding efficiency of the raw material. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an automatic mold opening device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the base of an automatic mold opening device proposed in this utility model;

[0028] Figure 3 This is a three-dimensional back view of an automatic mold opening device proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Support frame; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 6. Top plate; 7. Sleeve rod; 8. Connecting rod; 9. Rack; 10. Fixing frame; 11. Rotating rod; 12. Gear; 13. Motor; 14. Water tank; 15. Cooler; 16. Water pump one; 17. Fixed pipe one; 18. Conveying pipe one; 19. Connecting pipe one; 20. Water pump two; 21. Fixed pipe two; 22. Conveying pipe two; 23. Connecting pipe two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 2This utility model provides an embodiment of an automatic mold opening device, comprising a base 1, a support frame 2 fixedly connected to the side wall of the base 1, a hydraulic cylinder 3 disposed on the side wall of the support frame 2, an upper mold 4 slidably connected to the side wall of the support frame 2, the output end of the hydraulic cylinder 3 being connected to the upper mold 4, a lower mold 5 fixedly connected to the side wall of the base 1, a lifting assembly disposed inside the base 1, and a cooling assembly disposed on the side wall of the base 1; the lifting assembly includes a top plate 6, which is used to eject the mold inside the lower mold 5, and the side wall of the top plate 6 is slidably connected inside the lower mold 5. The base 1 has a fixedly connected sleeve rod 7 inside, which guides and supports the connecting rod 8. The connecting rod 8 is slidably connected inside the sleeve rod 7. The side wall of the connecting rod 8 is fixedly connected to the bottom of the top plate 6. The side wall of the connecting rod 8 is fixedly connected to a rack 9. The side wall of the sleeve rod 7 is fixedly connected to a fixed frame 10. The fixed frame 10 has a rotatable connecting rod 11 inside. The side wall of the rotating rod 11 is fixedly connected to a gear 12. The side wall of the fixed frame 10 is equipped with a motor 13. The rack 9 meshes with the gear 12. The output end of the motor 13 is connected to the rotating rod 11.

[0033] After the mold is made, the hydraulic cylinder 3 is started. The hydraulic cylinder 3 acts as a power source, outputting a strong thrust to drive the upper mold 4 to slide upwards along the side wall of the support frame 2. The support frame 2 provides support and guidance, ensuring the upper mold 4 can move smoothly and separate from the lower mold 5. Then, the motor 13 is started, causing the rotating rod 11 to begin rotating inside the fixed frame 10. The fixed frame 10 provides fixation and support for the rotating rod 11, ensuring it can rotate stably around its own axis. The rotation of the rotating rod 11 drives the gear 1. 2. The gear 12 rotates and transmits the rotation of the rotating rod 11 to the meshing rack 9. The gear 12 and the rack 9 fixed to the side wall of the connecting rod 8 are meshed. Therefore, when the gear 12 rotates, the rack 9 is subjected to the force of the gear 12, which drives the connecting rod 8 to slide inside the sleeve 7. The sleeve 7 plays a guiding and supporting role for the connecting rod 8, ensuring that the connecting rod 8 can slide in a straight line. As the connecting rod 8 rises, the top plate 6 is raised. After the top plate 6 is raised, the mold inside the lower mold 5 can be ejected, completing the demolding process.

[0034] Reference Figure 1 and Figure 3The cooling assembly includes a water tank 14, a cooler 15 fixedly connected to the side wall of the water tank 14, the cooler 15 being used to cool the liquid inside the water tank 14, a water pump 16 fixedly connected to the side wall of the water tank 14, a fixed pipe 17 fixedly connected to the input end of the water pump 16, the fixed pipe 17 being fixedly connected to the side wall of the water tank 14, a conveying pipe 18 fixedly connected to the output end of the water pump 16, a connecting pipe 19 fixedly connected to the side wall of the lower mold 5, the conveying pipe 18 being connected to the connecting pipe 19, a water pump 20 fixedly connected to the side wall of the water tank 14, a fixed pipe 21 fixedly connected to the input end of the water pump 20, the fixed pipe 21 being fixedly connected to the side wall of the water tank 14, a conveying pipe 22 fixedly connected to the output end of the water pump 20, and a connecting pipe 23 fixedly connected to the side wall of the upper mold 4, the conveying pipe 22 being connected to the connecting pipe 23.

[0035] The hydraulic cylinder 3 is activated, causing the upper mold 4 to slide against the side wall of the support frame 2, closing the upper mold 4 and the lower mold 5. After the upper mold 4 and the lower mold 5 are closed, a closed space is formed. Then, the raw material is injected into the mold. The cooler 15 cools the liquid inside the water tank 14. The cooler 15 can lower the temperature of the liquid in the water tank 14 and keep it at a suitable low temperature to provide low-temperature coolant for subsequent cooling of the mold. At this time, the water pump 16 is activated. The water pump 16 draws the low-temperature liquid from the water tank 14 through the fixed pipe 17. The drawn liquid is transported through the delivery pipe 18 to the connecting pipe 19, and then the low-temperature liquid is transported into the lower mold 5. The low-temperature liquid enters the lower mold. After mold 5 is activated, it can absorb the heat of the raw material inside the mold, accelerating the cooling and molding speed of the raw material. Then, water pump 20 is started. Water pump 20 draws out the liquid inside water tank 14 through fixed pipe 21. The drawn liquid is transported to the inside of connecting pipe 23 through conveying pipe 22, and then transported to the inside of upper mold 4 through connecting pipe 23. After the low temperature liquid enters the upper mold 4, it can also absorb the heat of the raw material, accelerating the molding of the raw material in the area of ​​upper mold 4. The liquid sent into the mold will return to the inside of water tank 14 through connecting pipe 19 and connecting pipe 23, and take away the heat inside the mold. In this way, new low temperature liquid can re-enter the inside of the mold, realizing the circulation of coolant in the entire system.

[0036] Working principle: After the mold is made, the hydraulic cylinder 3 is started to drive the upper mold 4 to move upward and slide on the side wall of the support frame 2, so that it is separated from the lower mold 5. Then the motor 13 is started to make the rotating rod 11 start to rotate inside the fixed frame 10. The rotation of the rotating rod 11 drives the gear 12 to rotate. The gear 12 is meshed with the rack 9 fixed on the side wall of the connecting rod 8. Therefore, the rack 9 drives the connecting rod 8 to slide inside the sleeve 7, raising the top plate 6 and pushing the mold inside the lower mold 5 out.

[0037] The hydraulic cylinder 3 is activated, causing the upper mold 4 to slide against the side wall of the support frame 2, closing the upper mold 4 and the lower mold 5. Then, the raw material is injected into the mold. The liquid in the water tank 14 is cooled by the cooler 15. At this time, the water pump 16 is activated to extract the liquid from the water tank 14 through the fixed pipe 17, and deliver it to the connecting pipe 19 through the conveying pipe 18. Then, it is delivered to the lower mold 5 through the connecting pipe 19. The water pump 20 is activated to extract the liquid from the water tank 14 through the fixed pipe 21, and deliver it to the connecting pipe 23 through the conveying pipe 22. Then, it is delivered to the upper mold 4 through the connecting pipe 23 to accelerate the molding of the raw material. The liquid sent into the mold will return to the water tank 14 through the connecting pipe 19 and the connecting pipe 23, taking away the heat inside the mold. New liquid re-enters the mold to achieve circulation.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic mold opening device, comprising a base (1), characterized in that: The base (1) has a support frame (2) fixedly connected to its side wall. The support frame (2) has a hydraulic cylinder (3) installed on its side wall. The support frame (2) has an upper mold (4) slidably connected to its side wall. The output end of the hydraulic cylinder (3) is connected to the upper mold (4). The base (1) has a lower mold (5) fixedly connected to its side wall. The base (1) has a lifting assembly installed inside its interior. The base (1) has a cooling assembly installed on its side wall. The lifting assembly includes a top plate (6), the side wall of which is slidably connected to the inside of the lower mold (5). A sleeve rod (7) is fixedly connected inside the base (1). A connecting rod (8) is slidably connected inside the sleeve rod (7). The side wall of the connecting rod (8) is fixedly connected to the bottom of the top plate (6). A rack (9) is fixedly connected to the side wall of the connecting rod (8). A fixing frame (10) is fixedly connected to the side wall of the sleeve rod (7). A rotating rod (11) is rotatably connected inside the fixing frame (10). A gear (12) is fixedly connected to the side wall of the rotating rod (11). A motor (13) is provided on the side wall of the fixing frame (10).

2. The automatic mold opening device according to claim 1, characterized in that: The cooling assembly includes a water tank (14), a cooler (15) is fixedly connected to the side wall of the water tank (14), and a water pump (16) is fixedly connected to the side wall of the water tank (14).

3. The automatic mold opening device according to claim 2, characterized in that: The water pump (16) is fixedly connected to a fixed pipe (17) at its input end, and the side wall of the fixed pipe (17) is fixedly connected to the inside of the water tank (14).

4. The automatic mold opening device according to claim 3, characterized in that: The output end of the water pump (16) is fixedly connected to the conveying pipe (18), and the side wall of the lower mold (5) is fixedly connected to the connecting pipe (19). The conveying pipe (18) is connected to the connecting pipe (19).

5. The automatic mold opening device according to claim 2, characterized in that: The water tank (14) is fixedly connected to a second water pump (20), and the input end of the second water pump (20) is fixedly connected to a second fixed pipe (21).

6. The automatic mold opening device according to claim 5, characterized in that: The side wall of the fixed pipe 2 (21) is fixedly connected to the inside of the water tank (14), and the output end of the water pump 2 (20) is fixedly connected to the delivery pipe 2 (22).

7. The automatic mold opening device according to claim 6, characterized in that: The upper mold (4) is fixedly connected to the side wall of the connecting pipe two (23), and the conveying pipe two (22) is connected to the connecting pipe two (23).

8. The automatic mold opening device according to claim 1, characterized in that: The rack (9) meshes with the gear (12), and the output end of the motor (13) is connected to the rotating rod (11).