Mold locking mechanism based on oil cylinder drive
The hydraulic cylinder-driven mold locking mechanism, combined with structures such as air cylinders, hydraulic cylinders, slide rails, and gears, enables the locking, lifting, and flipping functions of the mold. This solves the problems of unreliability and low automation of traditional mold locking mechanisms, and improves production efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINZHUANG HYDRAULIC TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
Smart Images

Figure CN224408181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locking equipment technology, and in particular to a mold locking mechanism based on hydraulic cylinder drive. Background Technology
[0002] Industrial production refers to large-scale product manufacturing activities carried out in factories and other similar locations. It encompasses a series of production processes, including raw material processing, component manufacturing, and product assembly, and involves various industries such as machinery manufacturing, electronics, and chemicals. Advanced production equipment and technologies are typically employed to improve production efficiency and product quality. In industrial production, precise control and efficient management of the production process are crucial to ensure that products are delivered on time, in accordance with quality standards, and in the required quantities.
[0003] In industrial production, molds, as core forming components, directly affect product quality through the precision and stability of their locking, lifting, and flipping actions. Traditional mold locking mechanisms have the following shortcomings: unreliable locking: mechanical locking structures are simple and easily loosened by external forces, failing to meet the demands of high-precision machining; low automation: they rely heavily on manual assistance to adjust the mold's posture, resulting in low efficiency and large errors; limited functionality: they lack integrated design, making it difficult to simultaneously achieve complex functions such as locking, lifting, and flipping. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a mold locking mechanism based on hydraulic cylinder drive, so as to improve the efficiency of automated production and processing accuracy.
[0005] The present invention adopts the following technical solution:
[0006] A hydraulic cylinder-driven mold locking mechanism includes a mechanism body comprising several locking modules and a mold module. Each locking module includes a locking cylinder, a locking block, and a locking hydraulic cylinder. The locking cylinder drives the locking block to perform linear motion. The locking block has a U-shaped groove that engages with the locking hydraulic cylinder. A limit nut is provided at the upper end of the piston rod of the locking hydraulic cylinder. The lower surface of the limit nut abuts tightly against the upper surface of the locking block to limit the stroke of the locking block and achieve mechanical limiting in the locked state. Each mold module includes an upper plate, a lower plate, and a lifting hydraulic cylinder. The upper plate is located below the locking cylinder and is connected through it to the output end of the locking hydraulic cylinder. The bottom of the locking hydraulic cylinder is fixedly mounted on the lower plate. The output end of the lifting hydraulic cylinder is connected to the upper plate, and the other end of the lifting hydraulic cylinder is fixedly connected to the lower plate.
[0007] A further improvement to the above technical solution is that the mold module further includes an upper template and a lower template, the upper template being located below the upper connecting plate and the lower template being located above the lower connecting plate.
[0008] A further improvement to the above technical solution is that the mold module is connected to a hydraulic tilting module, which includes a support base, a gantry frame, a tilting hydraulic cylinder, and a hydraulic control system; the support base is rotatably connected to the gantry frame; the gantry frame spans above the lower plate; one end of the tilting hydraulic cylinder is hinged to the support base, and the output end of the tilting hydraulic cylinder is hinged to the gantry frame; the hydraulic control system is used to provide power to the tilting hydraulic cylinder, drive the gantry frame to rotate relative to the support base, and thus drive the mold module to perform a tilting action.
[0009] A further improvement to the above technical solution is that a pneumatic control box is provided on one side of the support base, and the pneumatic control box is connected to the locking cylinder.
[0010] A further improvement to the above technical solution is that a water collection tray is provided at the bottom of the support base, and the water collection tray is located below the mold module.
[0011] A further improvement to the above technical solution is that the gantry frame is provided with first slide rails symmetrically on both sides of the front, the first slide rails are slidably connected to a first pulley group, and the first pulley group is fixedly connected to the front of the upper plate.
[0012] A further improvement to the above technical solution is that a second slide rail is symmetrically provided on both sides of the rear of the gantry frame, the second slide rail is slidably connected to a second pulley group, and the second pulley group is fixedly connected to the rear of the upper connecting plate.
[0013] A further improvement to the above technical solution is that the upper surface of the upper connecting plate is provided with a synchronizing rod, and the two ends of the synchronizing rod are respectively connected to synchronizing gears, which are fixedly installed on the inner side of the gantry frame.
[0014] A further improvement to the above technical solution is that the surface of the upper plate is provided with a plurality of guide components, each of the guide components including symmetrically arranged guide pieces, the guide pieces having a Z-shaped structure and slidingly engaging with the locking block, the guide pieces being used to guide and constrain the movement of the locking block.
[0015] A further improvement to the above technical solution is that the locking cylinder and the lifting cylinder are respectively connected to the hydraulic control system.
[0016] The beneficial effects of this utility model are as follows:
[0017] This utility model achieves high-precision control of mold locking, lifting, and flipping through the cooperation of cylinders, oil cylinders, slide rails, gears, and other mechanical structures; the pneumatic control box and hydraulic control system integrate the power source, and the modules work together to improve the efficiency of automated production; the design of bidirectional slide rail guidance and synchronous gear transmission ensures the smoothness of mold movement and extends the service life of the equipment; it integrates functions such as locking, lifting, flipping, and waste liquid collection, improves the efficiency of automated production, and is suitable for diverse industrial production scenarios. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the mold locking mechanism based on hydraulic cylinder drive according to this utility model;
[0019] Figure 2 for Figure 1 A partial enlarged view of circle A in the cylinder-driven mold locking mechanism;
[0020] Figure 3 for Figure 1 A schematic diagram of the structure of a hydraulic tilting module based on a cylinder-driven mold locking mechanism;
[0021] Figure 4 for Figure 3 A schematic diagram of the gantry and mold module of the mold locking mechanism based on hydraulic cylinder drive;
[0022] Figure 5 for Figure 3 A schematic diagram of the gantry and mold module from another angle, based on a cylinder-driven mold locking mechanism;
[0023] Figure 6 for Figure 5 A magnified view of circle B in the gantry frame and mold module.
[0024] The numbers on the map are:
[0025] 10. Mechanism body; 20. Locking module; 21. Locking cylinder; 22. Locking oil cylinder; 23. Limit nut; 30. Mold module; 31. Upper connecting plate; 32. Lower connecting plate; 33. Lifting oil cylinder; 34. Upper template; 35. Lower template; 40. Locking block; 41. U-shaped slot; 50. Hydraulic tilting module; 51. Support base; 52. Gantry frame; 53. Tilting hydraulic cylinder; 54. Hydraulic control system; 55. Pneumatic control box; 56. Water collection tray; 60. First slide rail; 61. First pulley block; 70. Second slide rail; 71. Second pulley block; 80. Synchronizing rod; 81. Synchronizing gear; 82. Synchronizing rack; 90. Guide assembly; 91. Guide plate. Detailed Implementation
[0026] 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.
[0027] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] like Figures 1 to 6 The diagram illustrates an embodiment of this utility model, relating to a cylinder-driven mold locking mechanism. It includes a mechanism body 10, which comprises several locking modules 20 and a mold module 30. Each locking module 20 includes a locking cylinder 21, a locking block 40, and a locking cylinder 22. The locking cylinder 21 drives the locking block 40 in linear motion. The locking block 40 has a U-shaped slot 41 that engages with the locking cylinder 22. The mold module 30 includes an upper plate 31, a lower plate 32, and a lifting cylinder 33. The upper plate 31 is positioned below the locking cylinder 21 and is connected through it to the output end of the locking cylinder 22. The bottom of the locking cylinder 22 is fixedly mounted on the lower plate 32. The output end of the lifting cylinder 33 is connected to the upper plate 31, and the other end of the lifting cylinder 33 is fixedly connected to the lower plate 32.
[0030] Furthermore, the locking cylinder 21 drives the locking block 40 to engage the locking cylinder 22, thereby locking the mold module 30; the lifting cylinder 33 drives the upper plate 31 to rise and fall, forming a basic functional structure for locking and lifting, ensuring the positional stability and motion coordination of the mold during processing; the upper end of the piston rod of the locking cylinder 22 is provided with a limit nut 23, the lower surface of the limit nut 23 is in close contact with the upper surface of the locking block 40, which is used to limit the stroke of the locking block 40 and realize mechanical limiting in the locked state.
[0031] Furthermore, the mold module 30 also includes an upper mold plate 34 and a lower mold plate 35. The upper mold plate 34 is located below the upper connecting plate 31, and the lower mold plate 35 is located above the lower connecting plate 32. Specifically, the upper mold plate 34 and the lower mold plate 35 cooperate to form a processing cavity, which is linked with the upper connecting plate 31, the lower connecting plate 32, the lifting cylinder 33, etc., to meet the mold opening and closing requirements of injection molding, compression molding and other processes.
[0032] Furthermore, the mold module 30 is connected to a hydraulic tilting module 50, which includes a support base 51, a gantry frame 52, a tilting hydraulic cylinder 53, and a hydraulic control system 54. The support base 51 is rotatably connected to the gantry frame 52. The gantry frame 52 spans above the lower plate 32. One end of the tilting hydraulic cylinder 53 is hinged to the support base 51, and the output end of the tilting hydraulic cylinder 53 is hinged to the gantry frame 52. The hydraulic control system 54 provides power to the tilting hydraulic cylinder 53, driving the gantry frame 52 to rotate relative to the support base 51, thereby causing the mold module 30 to perform a tilting action. Specifically, the hydraulic tilting module 50 achieves multi-angle tilting of the mold module 30 through hinged drive and hydraulic control, adapting to the adjustment requirements of different processes for mold posture and expanding the application scenarios of the equipment. The hydraulic control system 54 adopts a conventional hydraulic station structure in the field, including components such as an oil pump, control valve group, and oil tank. Its specific structure and working principle will not be described in detail here.
[0033] Furthermore, a pneumatic control box 55 is provided on one side of the support base 51, and the pneumatic control box 55 is connected to the locking cylinder 21. Specifically, the pneumatic control box 55 provides a stable air source for the locking cylinder 21, accurately controls the start-stop and movement accuracy of the locking cylinder 21, and ensures the timeliness and reliability of the locking action.
[0034] Furthermore, a water collection tray 56 is provided at the bottom of the support base 51, and the water collection tray 56 is located below the mold module 30. Specifically, the water collection tray 56 is used to collect coolant, waste liquid, etc. during the mold processing, to prevent liquid dripping and contaminating the working environment, and to improve the cleanliness and maintenance convenience of the equipment.
[0035] Furthermore, the gantry frame 52 is symmetrically provided with first slide rails 60 on both sides of its front. The first slide rails 60 are slidably connected to the first pulley group 61, and the first pulley group 61 is fixedly connected to the front of the upper connecting plate 31. Specifically, the first slide rails 60 and the first pulley group 61 form a guide structure, constraining the lifting trajectory of the upper connecting plate 31, preventing deviation, and improving the stability of the lifting process of the mold module 30.
[0036] Furthermore, symmetrical second slide rails 70 are provided on both rear sides of the gantry frame 52. The second slide rails 70 are slidably connected to the second pulley group 71, and the second pulley group 71 is fixedly connected to the rear of the upper connecting plate 31. Specifically, they form a bidirectional guide with the first slide rail 60 and the first pulley group 61, further enhancing the stability of the lifting of the upper connecting plate 31 and ensuring the movement accuracy of the mold module 30.
[0037] Furthermore, the upper surface of the upper plate 31 is provided with a synchronizing rod 80, and synchronizing gears 81 are respectively connected to both ends of the synchronizing rod 80. The synchronizing gears 81 are connected to a synchronizing rack 82, and the synchronizing rack 82 is fixedly installed on the inner side of the gantry frame 52. Specifically, the synchronizing rod 80 connects to the synchronizing gears 81, and the synchronizing gears 81 mesh with the synchronizing rack 82 fixed on the inner side of the gantry frame 52 to form a gear and rack transmission structure. When the upper plate 31 is raised or lowered, the synchronizing rod 80 drives the synchronizing gears 81 to move along the synchronizing rack 82, forcibly constraining the movement speed of both sides of the upper plate 31 to be consistent, ensuring that the upper plate 31 always remains horizontal during the raising and lowering process, avoiding mold tilting due to asynchronous raising and lowering, and greatly improving the mold closing accuracy and processing reliability.
[0038] Furthermore, the surface of the upper plate 31 is provided with a plurality of guide components 90, each guide component 90 including symmetrically arranged guide pieces 91. The guide pieces 91 have a Z-shaped structure and slide in cooperation with the locking block 40. The guide pieces 91 are used to guide and constrain the movement of the locking block 40. Specifically, the Z-shaped guide pieces 91 provide sliding guidance for the locking block 40, reduce movement deviation, and ensure the accuracy of the locking block 40 in engaging or disengaging the locking cylinder 22.
[0039] Furthermore, the locking cylinder 22 and the lifting cylinder 33 are respectively connected to the hydraulic control system 54. Specifically, the hydraulic control system 54 controls the locking cylinder 22 and the lifting cylinder 33 through pipelines to achieve centralized management of the power source and improve system coordination and control accuracy.
[0040] The working principle of this utility model is as follows:
[0041] Locking cylinder 21 drives locking block 40 to engage locking cylinder 22 through U-shaped slot 41, fixing mold module 30; lifting cylinder 33 drives upper plate 31 to rise and fall, driving upper template 34 and lower template 35 to complete mold opening and closing actions; hydraulic control system 54 drives tilting hydraulic cylinder 53, driving gantry frame 52 to rotate around hinge point of support base 51, realizing tilting of mold module 30 to adapt to different processing angle requirements; pneumatic control box 55 supplies power to locking cylinder 21 to ensure reliable locking action; water collection tray 56 collects waste liquid to maintain a clean working environment; slide rails, pulley blocks, synchronous gears 81, etc. ensure motion accuracy and stability.
[0042] This utility model achieves high-precision control of mold locking, lifting, and flipping through the cooperation of cylinders, oil cylinders, slide rails, gears, and other mechanical structures; the pneumatic control box 55 and hydraulic control system 54 integrate the power source, and the modules work together to improve the efficiency of automated production; the design of bidirectional slide rail guidance and synchronous gear 81 transmission ensures the smoothness of mold movement and extends the service life of the equipment; it integrates locking, lifting, flipping, and waste liquid collection functions to improve the efficiency of automated production and adapt to diverse industrial production scenarios.
[0043] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.
Claims
1. A mold locking mechanism based on hydraulic cylinder drive, characterized in that, The device includes a mechanism body, which comprises several locking modules and a mold module. Each locking module includes a locking cylinder, a locking block, and a locking hydraulic cylinder. The locking cylinder drives the locking block to move linearly. The locking block has a U-shaped groove that engages with the locking hydraulic cylinder. A limit nut is provided at the upper end of the piston rod of the locking hydraulic cylinder. The lower surface of the limit nut abuts tightly against the upper surface of the locking block to limit the stroke of the locking block and achieve mechanical limiting in the locked state. The mold module includes an upper plate, a lower plate, and a lifting hydraulic cylinder. The upper plate is located below the locking cylinder and is connected through it to the output end of the locking hydraulic cylinder. The bottom of the locking hydraulic cylinder is fixedly installed on the lower plate. The output end of the lifting hydraulic cylinder is connected to the upper plate, and the other end of the lifting hydraulic cylinder is fixedly connected to the lower plate.
2. The mold locking mechanism based on hydraulic cylinder drive according to claim 1, characterized in that, The mold module also includes an upper template and a lower template. The upper template is located below the upper connecting plate, and the lower template is located above the lower connecting plate.
3. The mold locking mechanism based on hydraulic cylinder drive according to claim 1, characterized in that, The mold module is connected to a hydraulic tilting module, which includes a support base, a gantry frame, a tilting hydraulic cylinder, and a hydraulic control system. The support base is rotatably connected to the gantry frame. The gantry frame spans above the lower plate. One end of the tilting hydraulic cylinder is hinged to the support base, and the output end of the tilting hydraulic cylinder is hinged to the gantry frame. The hydraulic control system provides power to the tilting hydraulic cylinder, driving the gantry frame to rotate relative to the support base, thereby causing the mold module to perform a tilting action.
4. The mold locking mechanism based on hydraulic cylinder drive according to claim 3, characterized in that, A pneumatic control box is provided on one side of the support base, and the pneumatic control box is connected to the locking cylinder.
5. The mold locking mechanism based on hydraulic cylinder drive according to claim 3, characterized in that, The bottom of the support base is provided with a water collection tray, which is located below the mold module.
6. The mold locking mechanism based on hydraulic cylinder drive according to claim 3, characterized in that, The gantry frame is provided with first slide rails symmetrically on both sides of the front. The first slide rails are slidably connected to the first pulley group, and the first pulley group is fixedly connected to the front of the upper plate.
7. The mold locking mechanism based on hydraulic cylinder drive according to claim 3, characterized in that, The gantry frame is provided with symmetrical second slide rails on both rear sides. The second slide rails are slidably connected to a second pulley group, and the second pulley group is fixedly connected to the rear of the upper plate.
8. The mold locking mechanism based on hydraulic cylinder drive according to claim 1, characterized in that, The upper surface of the upper plate is provided with a synchronizing rod, and the two ends of the synchronizing rod are respectively connected to synchronizing gears, which are fixedly installed on the inner side of the gantry.
9. The mold locking mechanism based on hydraulic cylinder drive according to claim 1, characterized in that, The surface of the upper plate is provided with a number of guide components. Each guide component includes symmetrically arranged guide pieces. The guide pieces have a Z-shaped structure and slide with the locking block. The guide pieces are used to guide and constrain the movement of the locking block.
10. The mold locking mechanism based on hydraulic cylinder drive according to claim 1, characterized in that, The locking cylinder and lifting cylinder are respectively connected to the hydraulic control system.