Plastic mold device facilitating part taking
By combining the limiting device and the cylinder, the disassembly process of the moving mold is simplified, solving the problem of cumbersome maintenance and repair of the moving mold in the existing technology, and improving the efficiency of maintenance and repair.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BINSHILI PRECISE MOLD & PLASTICS TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-19
AI Technical Summary
The existing plastic mold equipment requires specialized tools and multiple people to work together when maintaining and repairing the moving mold. The disassembly process is cumbersome and difficult, resulting in low maintenance and repair efficiency.
A plastic mold device for easy removal of parts was designed. By combining a limiting device and a cylinder, the disassembly process of the moving mold is simplified. The moving mold can be quickly removed from the mounting plate by using the cooperation of a rotating threaded rod and a limiting block.
It enables rapid disassembly of the moving mold, improves maintenance and repair efficiency, and reduces the workload of staff.
Smart Images

Figure CN224374733U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic mold technology, and in particular to a plastic mold device that facilitates part removal. Background Technology
[0002] A plastic mold-making device is a piece of equipment used to manufacture plastic products. It uses a mold to shape plastic raw materials into the desired shape and size. This device typically includes a mold, a heating system, a cooling system, and a control system, and is used to complete processes such as melting, injection, pressure holding, cooling, and demolding of the plastic.
[0003] The mold is the core component of a plastic molding device, determining the shape, size, and surface quality of the plastic product. A mold typically consists of two parts: a moving mold and a fixed mold, with a cavity in between to hold the plastic raw material.
[0004] In existing plastic mold making equipment, the hydraulic system drives the moving mold and lower mold to close and form a mold cavity. Then, the molten plastic is pushed by the screw and enters the mold cavity through the mold's gating system. After the plastic melt fills the mold cavity, pressure is maintained to ensure the density and dimensional accuracy of the product. At the same time, the cooling system inside the mold starts to work, using circulating coolant to remove heat and allow the plastic to gradually cool and solidify. However, when the moving mold needs maintenance and repair after long-term use, it requires workers to use special tools and multiple people to disassemble it. This disassembly process is cumbersome and difficult, which increases the workload of workers and reduces the efficiency of moving mold maintenance and repair. Utility Model Content
[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a plastic mold device that is easy to remove parts. This device can solve the problem that when the moving mold needs to be maintained and repaired after long-term use, it is necessary for workers to use special tools and multiple people to disassemble the moving mold. This disassembly process is cumbersome and difficult, which increases the workload of workers and reduces the maintenance and repair efficiency of the moving mold.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic mold device for easy part removal, comprising a base, a fixed mold and a top plate, wherein a limiting device is provided on the base;
[0007] The limiting device includes a mounting plate, a moving mold, and a protective shell. The protective shell is fixedly connected to the upper surface of the mounting plate. Two T-shaped blocks are opened on the lower surface of the mounting plate. A rotating threaded rod is threadedly connected to the upper surface of the protective shell. A second limiting block groove is opened on the lower surface of the mounting plate. Two sliding rods are slidably connected to the upper surface of the protective shell.
[0008] The second limiting block groove has a sliding connection to a limiting block inside, and the outer wall of the protrusion on the upper surface of the moving mold has a first limiting block groove.
[0009] Preferably, the outer walls of the two T-shaped blocks on the moving mold are slidably connected to the interior of the corresponding T-shaped blocks, the interior of the second limiting block groove is connected to the interior of the protective shell, and the end of the limiting block near the first limiting block groove slides to the outside of the mounting plate and contacts the inner wall of the first limiting block groove.
[0010] The rotating threaded rod extends threadedly into the groove of the second limit block at one end and is rotatably connected to one end of the limit block. The two sliding rods extend slidably into the groove of the second limit block at one end and are fixedly connected to one end of the limit block.
[0011] Preferably, the ends of the four support columns on the upper surface of the base that are away from the base are all fixedly connected to the lower surface of the top plate, and a cylinder is installed on the upper surface of the top plate;
[0012] The cylinder's output end slides to the outside of the top plate and is fixedly connected to the upper surface of the mounting plate.
[0013] Preferably, a cooling pipe is installed inside the lower end of the base, the fixed mold is installed in the groove opened on the base by bolts, and a limit frame is slidably connected inside the groove opened on the upper surface of the base.
[0014] The limiting frame is hollow, and hydraulic telescopic rods are installed inside the grooves at both ends of the base.
[0015] Preferably, the inner wall of the limiting frame is slidably connected to the outer wall of the fixed mold, and the inside of the fixed mold is slidably connected to a release template, which is U-shaped.
[0016] The fixed mold has through slots on both sides of its outer wall. The inner walls of the limiting frame extend through the through slots to the interior of the fixed mold via connecting plates, and are fixedly connected to the outer walls of the demolding template on both sides.
[0017] Preferably, the outer walls of the two conical blocks on both sides of the demolding template are slidably connected to the inner walls of the two conical grooves on both sides of the fixed mold;
[0018] The output ends of the two hydraulic telescopic rods are fixedly connected to the lower surfaces of the protruding plates on both sides of the limiting frame. The two sliding rods on the top plate are slidably extended to the outside of the top plate and are fixedly connected to the upper surface of the mounting plate.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This easy-to-remove plastic mold device uses a limit device to rotate a threaded rod to move it upwards, which in turn moves the limit block upwards. At the same time, the outer wall of the other end of the limit block disengages from the inside of the first limit block groove. Then, the moving mold can be removed from the mounting plate by pulling it. This makes the removal of the moving mold simple and quick, effectively improving the maintenance and repair efficiency of the moving mold, while reducing the workload of the staff. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the external structure of the moving mold of this utility model;
[0024] Figure 3 This is a schematic diagram of the external structure of the cooling pipe of this utility model;
[0025] Figure 4 This utility model Figure 3 A structural schematic diagram of the enlarged view at point A in the middle.
[0026] Reference numerals: 1. Base; 2. Hydraulic telescopic rod; 3. Fixed mold; 4. Release mold; 5. Cylinder; 6. Top plate; 7. Limiting frame; 8. Mounting plate; 9. Slide rod; 10. Rotating threaded rod; 11. Protective shell; 12. T-block; 13. Moving mold; 14. First limiting block groove; 15. Through groove; 16. Cooling pipe; 17. Second limiting block groove; 18. Limiting block. Detailed Implementation
[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] Please see Figure 1-4 This utility model provides a technical solution: a plastic mold device for easy part removal, including a base 1, a fixed mold 3 and a top plate 6;
[0032] A limit device is provided on the base 1;
[0033] The limiting device includes a mounting plate 8, a moving mold 13, and a protective shell 11. The protective shell 11 is fixedly connected to the upper surface of the mounting plate 8. Two T-shaped blocks 12 are formed on the lower surface of the mounting plate 8. The outer walls of the two T-shaped blocks on the moving mold 13 are slidably connected to the interior of the corresponding T-shaped blocks 12. A rotating threaded rod 10 is threadedly connected to the upper surface of the protective shell 11. A second limiting block groove 17 is formed on the lower surface of the mounting plate 8. The interior of the second limiting block groove 17 communicates with the interior of the protective shell 11. Two sliding rods 9 are slidably connected to the upper surface of the protective shell 11. The internal sliding connection of 7 is limited by a limiting block 18. The outer wall of the protrusion on the upper surface of the moving mold 13 is provided with a first limiting block groove 14. One end of the limiting block 18 near the first limiting block groove 14 slides to the outside of the mounting plate 8 and contacts the inner wall of the first limiting block groove 14. One end of the rotating threaded rod 10 near the limiting block 18 is threaded to the inside of the second limiting block groove 17 and is rotatably connected to one end of the limiting block 18. One end of each of the two sliding rods 9 near the limiting block 18 slides to the inside of the second limiting block groove 17 and is fixedly connected to one end of the limiting block 18.
[0034] The four support columns on the upper surface of the base 1 are fixedly connected to the lower surface of the top plate 6 at their ends furthest from the base 1. A cylinder 5 is installed on the upper surface of the top plate 6, and the output end of the cylinder 5 extends slidably to the outside of the top plate 6 and is fixedly connected to the upper surface of the mounting plate 8. A cooling pipe 16 is installed inside the lower end of the base 1. The fixed mold 3 is installed in a groove on the base 1 by bolts. A limit frame 7 is slidably connected inside the groove on the upper surface of the base 1. The limit frame 7 is hollow. Hydraulic telescopic rods 2 are installed inside the grooves at both ends of the base 1. The inner wall of the limit frame 7 is slidably connected to the outer wall of the fixed mold 3. The internal sliding connection of the fixed mold 3 is... The mold 4 is U-shaped and has through slots 15 on both sides of the outer wall of the fixed mold 3. The inner walls of the limiting frame 7 extend through the through slots 15 to the interior of the fixed mold 3 and are fixedly connected to the outer walls of the mold 4. The outer walls of the two conical blocks on both sides of the mold 4 are slidably connected to the inner walls of the two conical slots on both sides of the fixed mold 3. The output ends of the two hydraulic telescopic rods 2 are fixedly connected to the lower surfaces of the protruding plates on both sides of the limiting frame 7. The two sliding rods on the top plate 6 are slidably extended to the outside of the top plate 6 and are fixedly connected to the upper surface of the mounting plate 8.
[0035] Furthermore, when using this device, it is started by connecting to an external power source. The output end of cylinder 5 moves downwards, causing the mounting plate 8 to move downwards and simultaneously closing the moving mold 13 and the fixed mold 3. This forms a mold cavity through the groove on the lower surface of the moving mold 13 and the protrusion on the ejector plate 4 inside the fixed mold 3. Then, an external injection molding machine delivers molten plastic to the mold cavity through the gating system on the moving mold 13. Finally, cooling water is supplied to the cooling pipe 16 via external cooling equipment connected to flanges at both ends, thus accelerating the mold forming speed. After the mold is formed, the cylinder 5 drives the moving mold 13 to separate from the fixed mold 3. Then, the output end of the hydraulic telescopic rod 2 moves upward, driving the limiting frame 7 to move upward, and at the same time, the ejector plate 4 moves upward and slides out from the inside of the fixed mold 3. Then, the worker wearing gloves can remove the forming mold from the ejector plate 4. Then, when it is necessary to remove the moving mold 13, the screw rod 10 is turned to rotate it and move it upward, driving the limiting block 18 to move upward, while the outer wall of its other end disengages from the inside of the first limiting block groove 14. Then, the moving mold 13 can be removed from the mounting plate 8 by pulling it.
[0036] By rotating the threaded rod 10 in the limiting device, it moves upward, causing the limiting block 18 to move upward, while the outer wall of its other end disengages from the inside of the first limiting block groove 14. Then, by pulling the moving mold 13, the moving mold 13 can be removed from the mounting plate 8. This method of disassembling the moving mold 13 is simple and quick, effectively improving the maintenance and repair efficiency of the moving mold 13, while reducing the workload of the staff.
[0037] Structural Description: Cylinder 5: Used to push the mounting plate 8 and the moving mold 13 to move up and down. The cylinder is connected to the mounting plate by bolts or pins. The structure is simple, the movement is smooth, and it is easy to realize automated control.
[0038] Fixed mold 3: The fixed part of the mold, which cooperates with the moving mold 13 to form a cavity. The fixed mold 3 is fixed to the frame, providing a stable molding base and ensuring mold accuracy;
[0039] Demolding template 4: Located inside the fixed mold 3, it is used for demolding the molded product. The demolding template 4 is connected to the fixed mold through the guide rail, which allows for smooth sliding and facilitates demolding operation.
[0040] Moving mold 13: The movable part of the mold, which closes with the fixed mold 3 to form a cavity. The moving mold 13 is connected by a cylinder and a mounting plate, which closes tightly and produces good molding results.
[0041] Limiting frame 7: used to limit the movement of the demolding template 4. The limiting frame 7 is connected to the demolding template 4 by the hydraulic telescopic rod 2, which ensures precise positioning and convenient operation.
[0042] Rotating threaded rod 10: Rotating threaded rod 10 is connected to limit block 18 by thread, which is convenient for adjustment and accurate for positioning.
[0043] Limiting block 18: Used to move in conjunction with the rotating threaded rod 10. The limiting block 18 and the rotating threaded rod 10 are connected by threads, ensuring smooth movement and facilitating the disassembly of the moving mold 13.
[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A plastic mold device for easy part removal, comprising a base (1), a fixed mold (3), and a top plate (6), characterized in that: A limiting device is provided on the base (1); The limiting device includes a mounting plate (8), a moving mold (13), and a protective shell (11). The protective shell (11) is fixedly connected to the upper surface of the mounting plate (8). Two T-shaped blocks (12) are opened on the lower surface of the mounting plate (8). A rotating threaded rod (10) is threadedly connected to the upper surface of the protective shell (11). A second limiting block groove (17) is opened on the lower surface of the mounting plate (8). Two sliding rods (9) are slidably connected to the upper surface of the protective shell (11). Among them, the second limiting block groove (17) is internally connected to a limiting block (18), and the upper surface of the moving mold (13) has a first limiting block groove (14) on the outer wall of the protrusion.
2. The plastic mold device for easy part removal according to claim 1, characterized in that: The outer walls of the two T-shaped blocks on the moving mold (13) are slidably connected to the interior of the corresponding T-shaped block (12), the interior of the second limiting block groove (17) is connected to the interior of the protective shell (11), and the end of the limiting block (18) near the first limiting block groove (14) slides to the outside of the mounting plate (8) and contacts the inner wall of the first limiting block groove (14). Among them, the end of the rotating threaded rod (10) near the limiting block (18) is threaded into the interior of the second limiting block groove (17) and rotatably connected to one end of the limiting block (18), and the ends of the two sliding rods (9) near the limiting block (18) are slidably extended into the interior of the second limiting block groove (17) and fixedly connected to one end of the limiting block (18).
3. The plastic mold device for easy part removal according to claim 1, characterized in that: The four support columns on the upper surface of the base (1) are fixedly connected to the lower surface of the top plate (6) at the ends away from the base (1). A cylinder (5) is installed on the upper surface of the top plate (6). The output end of the cylinder (5) extends slidably to the outside of the top plate (6) and is fixedly connected to the upper surface of the mounting plate (8).
4. The plastic mold device for easy part removal according to claim 1, characterized in that: A cooling pipe (16) is installed inside the lower end of the base (1), and the fixed mold (3) is installed inside the groove opened on the base (1) by bolts. A limit frame (7) is slidably connected inside the groove opened on the upper surface of the base (1). The limiting frame (7) is hollow, and hydraulic telescopic rods (2) are installed inside the grooves at both ends of the base (1).
5. A plastic mold device for easy part removal according to claim 4, characterized in that: The inner wall of the limiting frame (7) is slidably connected to the outer wall of the fixed mold (3), and the mold (3) has a release template (4) slidably connected inside, which is U-shaped; The fixed mold (3) has through slots (15) on both sides of its outer wall. The inner walls of the limiting frame (7) extend through the through slots (15) to the interior of the fixed mold (3) and are fixedly connected to the outer walls of the demolding template (4).
6. The plastic mold device for easy part removal according to claim 5, characterized in that: The outer walls of the two conical blocks on both sides of the demolding template (4) are slidably connected to the two conical grooves on both sides of the inner wall of the fixed mold (3); Among them, the output ends of the two hydraulic telescopic rods (2) are fixedly connected to the lower surfaces of the protruding plates on both sides of the limiting frame (7), and the two sliding rods on the top plate (6) are slidably connected to the outside of the mounting plate (8) and are fixedly connected to the upper surface of the mounting plate (8).