Multi-cylinder synchronous mold opening and closing mechanism for mold processing

Abstract

The utility model relates to mould processing equipment technical field discloses a kind of multi-oil cylinder synchronous mold opening and closing mechanism for mould processing, including support, mounting plate, fixed mould, hydraulic rod, movable mould and hydraulic oil pump station, it further includes synchronous valve and multiple installation components, synchronous valve is arranged between hydraulic oil pump station and multiple hydraulic rods, for synchronously delivering hydraulic oil to hydraulic rod, multiple hydraulic rods are installed on mounting plate one by one by installation component, mounting plate is recessed, and installation component includes mounting disc fixed on hydraulic rod and housed in recess, and screw is connected in the screw hole of recess bottom by passing through the round groove on mounting disc, to compress mounting disc tightly fixed.The mechanism is preferably further including anti-falling component, to prevent movable mould from falling.The utility model ensures the synchronous operation of multiple oil cylinders by synchronous valve, and movable mould is stable;Through installation component, the quick disassembly and independent overhaul of hydraulic rod are realized, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of mold processing equipment technology, and in particular to a multi-cylinder synchronous opening and closing mold mechanism for mold processing. Background Technology

[0002] In modern industrial production, molds are the basic process equipment for achieving mass production of parts. During mold processing, the mold opening and closing mechanism is a key component of equipment such as injection molding machines and die casting machines. It is responsible for driving the moving mold to separate or close from the fixed mold to complete processes such as part removal and injection.

[0003] As product complexity increases, the size and weight of molds continue to grow. For large or heavy molds, especially their moving mold parts, using only a single drive cylinder for opening and closing operations often fails to provide sufficient ejection force and can easily lead to uneven force distribution, resulting in unstable movement of the moving mold. Therefore, the industry commonly adopts a solution where multiple hydraulic cylinders work together to drive the moving mold.

[0004] However, a key technical challenge in using multi-cylinder drives is ensuring perfect synchronization of the movements of all hydraulic cylinders. Due to slight differences in oil circuit resistance, seal friction, and load distribution within the hydraulic system, inconsistencies in speed are highly likely to occur among the individual hydraulic cylinders during actual operation. This asynchrony can cause the moving mold to tilt or deflect during lifting and lowering, which can range from exacerbating wear on guide pillars and bushings to, in severe cases, causing the moving mold to jam or even damage the mold, seriously affecting production stability and mold lifespan.

[0005] Therefore, this utility model proposes a multi-cylinder synchronous opening and closing mold mechanism for mold processing to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a multi-cylinder synchronous opening and closing mold mechanism for mold processing. It aims to improve the problems in the existing multi-cylinder synchronous opening and closing mold mechanism for mold processing, such as the asynchronous movement of multiple cylinders, which easily leads to tilting and jamming of the moving mold, and the complex installation structure of the hydraulic rods, making it inconvenient to repair and replace when a single rod fails.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A multi-cylinder synchronous mold opening and closing mechanism for mold processing includes: a bracket; a mounting plate fixedly connected to the bracket; a fixed mold fixedly connected to the bracket; multiple hydraulic rods; a moving mold fixedly connected to the output ends of the multiple hydraulic rods; and a hydraulic oil pump station for driving the multiple hydraulic rods; it also includes: a synchronization valve; and multiple mounting components.

[0008] The synchronization valve is installed between the hydraulic oil pump station and multiple hydraulic rods to synchronously deliver hydraulic oil from the hydraulic oil pump station to the multiple hydraulic rods.

[0009] Furthermore, multiple hydraulic rods are mounted one-to-one on a mounting plate via multiple mounting assemblies. The mounting plate has multiple grooves. Each mounting assembly includes a mounting disc and at least one screw. The mounting disc is fixed to the hydraulic rod and fits into the corresponding groove. The mounting disc has a circular groove, and the bottom of the groove has a threaded hole. The screw passes through the circular groove and is threaded into the threaded hole to press and fix the mounting disc firmly within the groove.

[0010] Preferably, the multi-cylinder synchronous opening and closing mold mechanism for mold processing further includes a fall protection component. This fall protection component includes: a motor mounted on a bracket; a rotating shaft driven by the motor; a second pull ring fixed to the moving mold; a first pull ring fixed to a mounting plate; and a fall protection rope. One end of the fall protection rope is fixed to the rotating shaft, and the other end passes through the first pull ring and is fixed to the second pull ring. The motor drives the rotating shaft to rotate when the moving mold rises, thereby winding up the fall protection rope to taut it.

[0011] Preferably, the fall arrestor assembly further includes a limiting block fixed to the outside of the pivot shaft, the limiting block being used to separate the fall arrestor rope.

[0012] Preferably, the fall arrestor assembly further includes at least one fixing plate, which is fixed to the bracket, and the rotating shaft is rotatably connected to the fixing plate.

[0013] Preferably, a second pull ring is fixed on both sides of the moving mold; a first pull ring is fixed on both sides of the mounting plate.

[0014] Preferably, the multi-cylinder synchronous opening and closing mold mechanism for mold processing also includes a delivery pipe, which is connected between the hydraulic oil pump station and the synchronization valve.

[0015] Preferably, the multi-cylinder synchronous opening and closing mold mechanism for mold processing also includes multiple connecting pipes, which are respectively connected between the synchronous valve and multiple hydraulic rods.

[0016] Preferably, the multi-cylinder synchronous opening and closing mold mechanism for mold processing also includes a manifold, one end of which is pluggably adapted to a connecting pipe.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by setting a synchronization valve, hydraulic oil from the hydraulic oil pump station is synchronously delivered to multiple hydraulic rods, which solves the problem in the prior art where multiple hydraulic rods move asynchronously, which can easily lead to unstable movement, tilting or jamming of the moving mold, and achieves the technical effect of ensuring the smooth and synchronous opening and closing of the moving mold.

[0018] 2. In this utility model, by setting up an installation assembly consisting of an installation plate, grooves, and screws, each hydraulic rod is independently installed on the installation plate, which solves the problem of complex hydraulic rod installation structure and difficulty in independent disassembly and repair when a single hydraulic rod fails in the prior art, and achieves the technical effect of convenient and quick replacement and maintenance of a single hydraulic rod. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a multi-cylinder synchronous opening and closing mold mechanism for mold processing proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the first pull ring of a multi-cylinder synchronous mold opening and closing mechanism for mold processing proposed in this utility model; Figure 3 This is a schematic diagram of the installation assembly of a multi-cylinder synchronous opening and closing mold mechanism for mold processing proposed in this utility model; Figure 4 This is a schematic diagram of the hydraulic oil pump station of a multi-cylinder synchronous mold opening and closing mechanism for mold processing proposed in this utility model.

[0020] Legend: 1. Bracket; 2. Hydraulic rod; 3. Mounting assembly; 301. Mounting plate; 302. Screw; 303. Groove; 304. Screw hole; 305. Circular groove; 4. Connecting pipe; 5. Manifold; 6. Synchronizing valve; 7. Hydraulic oil pump station; 8. Delivery pipe; 9. Fall protection assembly; 901. Motor; 902. Fixing plate; 903. Rotating shaft; 904. Limit block; 905. Fall protection rope; 906. First pull ring; 907. Second pull ring; 10. Mounting plate; 11. Moving mold; 12. Fixed mold. Detailed Implementation

[0021] 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.

[0022] Please refer to Figures 1 to 4 This utility model provides a multi-cylinder synchronous opening and closing mold mechanism for mold processing, which aims to solve the problems in the prior art that cause the moving mold to tilt and jam due to asynchronous movement of multiple cylinders, the difficulty of disassembly and maintenance when the hydraulic rod fails, and the safety hazard of the moving mold falling.

[0023] like Figure 1As shown, the multi-cylinder synchronous opening and closing mold mechanism for mold processing includes a bracket 1, a mounting plate 10 fixedly connected to the bracket 1, and a fixed mold 12 fixedly connected to the bracket 1. The bracket 1 serves as the mounting base for the entire device. The mechanism also includes multiple hydraulic rods 2 and a moving mold 11 fixedly connected to the output ends of the multiple hydraulic rods 2. The mechanism further includes a hydraulic oil pump station 7, such as... Figure 4 As shown, the hydraulic oil pump station 7 drives multiple hydraulic rods 2, thereby causing the moving mold 11 to open and close relative to the fixed mold 12. The mechanism also includes a synchronization valve 6, which is located between the hydraulic oil pump station 7 and the multiple hydraulic rods 2, used to synchronously deliver hydraulic oil from the hydraulic oil pump station 7 to the multiple hydraulic rods 2, ensuring synchronous extension and retraction of the multiple hydraulic rods 2. The mechanism also includes a delivery pipe 8, which connects the hydraulic oil pump station 7 and the synchronization valve 6. The mechanism also includes multiple connecting pipes 4, which are respectively connected between the synchronization valve 6 and the multiple hydraulic rods 2. The mechanism also includes a manifold 5, one end of which is pluggably adapted to the connecting pipe 4, facilitating disconnection of the hydraulic connection when disassembling the hydraulic rods 2. The mechanism also includes multiple mounting components 3, through which the multiple hydraulic rods 2 are mounted one-to-one on the mounting plate 10. Please refer to... Figure 3 The mounting plate 10 has multiple grooves 303; the mounting assembly 3 includes a mounting disc 301 and at least one screw 302; the mounting disc 301 is fixed to the hydraulic rod 2 and adapted to be accommodated in the groove 303; the mounting disc 301 has a circular groove 305, and the bottom of the groove 303 has a screw hole 304; the screw 302 passes through the circular groove 305 and is threaded into the screw hole 304 to press and fix the mounting disc 301 in the groove 303. This structure allows a single hydraulic rod 2 to be installed and removed independently.

[0024] To further enhance safety, the multi-cylinder synchronous opening and closing mold mechanism for mold processing also includes a fall protection component 9. Furthermore, the fall protection component 9 forms a specific structural fit and connection relationship with the aforementioned bracket 1, mounting plate 10 and moving mold 11 to prevent the moving mold 11 from falling when the hydraulic rod 2 fails.

[0025] Please refer to the following carefully. Figure 1 The structure of the fall arrestor component 9 will be described in detail below: The fall arrestor assembly 9 includes a motor 901, which is mounted on the bracket 1; The fall arrestor assembly 9 also includes at least one fixing plate 902, which is fixed to the bracket 1; The fall arrestor assembly 9 also includes a rotating shaft 903, which is rotatably connected to the fixed plate 902. The input end of the rotating shaft 903 is connected to the output end of the motor 901 and is driven to rotate by the motor 901. The fall arrestor assembly 9 also includes a limiting block 904 fixed to the outside of the rotating shaft 903. The limiting block 904 is used to separate the fall arrestor rope 905 to prevent the fall arrestor rope 905 from being in an uncertain position or tangled when it is wound up. The fall arrestor assembly 9 also includes a first pull ring 906 fixed to the mounting plate 10 and a second pull ring 907 fixed to the moving mold 11; Specifically, a second pull ring 907 is fixed on both sides of the moving mold 11; a first pull ring 906 is fixed on both sides of the mounting plate 10 to achieve symmetrical force distribution and prevent the moving mold 11 from deflecting when it falls. Fall protection component 9 also includes fall protection rope 905; In the assembled state, one end of the fall arrest rope 905 is fixed to the rotating shaft 903, for example, fixed to both ends of the rotating shaft 903, and the other end passes through the stationary first pull ring 906 and is fixed to the moving second pull ring 907 in sequence. When the moving mold 11 rises, the motor 901 starts and drives the rotating shaft 903 to rotate, so as to wind up the fall arrest rope 905 and keep the fall arrest rope 905 taut at all times. This adaptive tightening structure ensures that when multiple hydraulic rods 2 fail and lose pressure, causing the moving mold 11 to tend to fall, the taut anti-fall rope 905 will immediately bear the weight of the moving mold 11 through the second pull ring 907, thereby achieving safety assurance.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, please refer to Figure 1 In order to prevent the fall arrest rope 905 from being out of position or tangled when it is wound up, the fall arrest component 9 also includes a limiting block 904 fixed to the outside of the rotating shaft 903. The limiting block 904 is used to separate the fall arrest rope 905.

[0027] As another preferred embodiment, please refer to Figure 1 In order to stably install the rotating shaft 903, the anti-fall assembly 9 also includes at least one fixing plate 902, which is fixed on the bracket 1, and the rotating shaft 903 is rotatably connected to the fixing plate 902.

[0028] As another preferred embodiment, please refer to Figure 1 In order to ensure that the moving mold 11 is subjected to uniform force when it is pulled by the fall arresting rope 905 and to prevent deflection, a second pull ring 907 is fixed on both sides of the moving mold 11; a first pull ring 906 is fixed on both sides of the mounting plate 10.

[0029] As another preferred embodiment, please refer to Figure 1 and Figure 4 In order to deliver hydraulic oil from the hydraulic oil pump station 7 to the synchronization valve 6, the mechanism also includes a delivery pipe 8, which connects the hydraulic oil pump station 7 and the synchronization valve 6.

[0030] As another preferred embodiment, please refer to Figure 1 In order to deliver the hydraulic oil distributed by the synchronizing valve 6 to each hydraulic rod 2, the mechanism also includes multiple connecting pipes 4, which are respectively connected between the synchronizing valve 6 and the multiple hydraulic rods 2.

[0031] As another preferred embodiment, please refer to Figure 1 In order to facilitate the quick disconnection of the oil circuit of a single hydraulic rod 2 during maintenance, the mechanism also includes a manifold 5, one end of which is pluggably adapted to the connecting pipe 4.

[0032] Working principle: When performing mold opening and closing operations, the hydraulic oil pump station 7 installed behind the support 1 is started. The hydraulic oil output by the hydraulic oil pump station 7 enters the synchronization valve 6 through the delivery pipe 8. The synchronization valve 6 distributes the hydraulic oil synchronously and equally into multiple connecting pipes 4. The multiple connecting pipes 4 respectively deliver the hydraulic oil to multiple hydraulic rods 2. Through the action of the synchronization valve 6, the multiple hydraulic rods 2 extend or retract synchronously. Since the output ends of the multiple hydraulic rods 2 are all fixed to the moving mold 11, the synchronous movement of the hydraulic rods 2 drives the moving mold 11 to perform a smooth mold opening and closing movement relative to the fixed mold 12 fixedly connected to the support 1. This solves the problem of the moving mold tilting or jamming that may be caused by the asynchronous movement of multiple cylinders.

[0033] When a single hydraulic rod 2 needs to be replaced or repaired, the manifold 5, which is pluggable and adapted to the connecting pipe 4, can be pulled out first to disconnect the oil circuit. Then, the screw 302, which passes through the circular groove 305 on the mounting plate 301 and is threaded into the screw hole 304 at the bottom of the groove 303, is unscrewed. After the screw 302 is removed from the circular groove 305 and the screw hole 304, the hydraulic rod 2, which is fixed to the mounting plate 301, can be directly removed from the groove 303 of the mounting plate 10 without disassembling other parts, thus achieving quick and convenient installation and repair.

[0034] During the ascent of the moving mold 11, the motor 901 mounted on the bracket 1 starts, driving the rotating shaft 903 connected to the fixed plate 902 to rotate. The rotation of the rotating shaft 903 causes the fall arrest rope 905 to be wound up. The limiting block 904 fixed on the rotating shaft 903 is used to separate the fall arrest rope 905 to prevent entanglement. One end of the fall arrest rope 905 is fixed to the rotating shaft 903, and the other end passes through the first pull ring 906 fixed on the mounting plate 10 and is fixed to the second pull ring 907 fixed on the moving mold 11. The synchronous winding action of the motor 901 keeps the fall arrest rope 905 taut at all times. When the hydraulic rod 2 fails and the moving mold 11 falls unexpectedly, the taut fall arrest rope 905 will immediately pull the moving mold 11 through the second pull ring 907 to prevent it from falling further, thus ensuring safety.

Claims

1. A multi-cylinder synchronous opening and closing mold mechanism for mold processing, comprising: Support (1); Mounting plate (10) is fixedly connected to the bracket (1); The fixed mold (12) is fixedly connected to the bracket (1); Multiple hydraulic rods (2); The moving mold (11) is fixedly connected to the output end of the plurality of hydraulic rods (2); Hydraulic oil pump station (7) is used to drive the plurality of hydraulic rods (2); Its features are, The organization also includes: Synchronization valve (6), which is disposed between the hydraulic oil pump station (7) and the plurality of hydraulic rods (2), is used to synchronously deliver hydraulic oil from the hydraulic oil pump station (7) to the plurality of hydraulic rods (2). Multiple mounting components (3), wherein the multiple hydraulic rods (2) are mounted on the mounting plate (10) one by one through the multiple mounting components (3); The mounting plate (10) has multiple grooves (303); The mounting assembly (3) includes a mounting plate (301) and at least one screw (302). The mounting plate (301) is fixed on the hydraulic rod (2) and adapted to be accommodated in the groove (303); The mounting plate (301) has a circular groove (305), and the bottom of the groove (303) has a screw hole (304). The screw (302) passes through the circular groove (305) and is threaded into the screw hole (304) to press and fix the mounting plate (301) in the groove (303).

2. The multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 1, characterized in that: The mechanism also includes a fall protection component (9), which includes: The motor (901) is mounted on the bracket (1); The rotating shaft (903) is driven to rotate by the motor (901); The second pull ring (907) is fixed on the moving mold (11); The first pull ring (906) is fixed on the mounting plate (10); A fall arresting rope (905), one end of which is fixed to the rotating shaft (903), and the other end passes through the first pull ring (906) and is fixed to the second pull ring (907); The motor (901) drives the rotating shaft (903) to rotate as the moving mold (11) rises, so as to wind up the fall arrest rope (905) and tighten it.

3. The multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 2, characterized in that: The fall arrestor assembly (9) also includes a limiting block (904) fixed to the outside of the pivot (903), the limiting block (904) being used to separate the fall arrestor rope (905).

4. The multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 2, characterized in that: The fall arrestor assembly (9) further includes at least one fixing plate (902), which is fixed on the bracket (1), and the rotating shaft (903) is rotatably connected to the fixing plate (902).

5. A multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 2, characterized in that: The second pull ring (907) is fixed on both sides of the moving mold (11); the first pull ring (906) is fixed on both sides of the mounting plate (10).

6. The multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 1, characterized in that: The mechanism also includes a delivery pipe (8) connected between the hydraulic oil pump station (7) and the synchronizing valve (6).

7. A multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 6, characterized in that: The mechanism also includes multiple connecting pipes (4), which are respectively connected between the synchronizing valve (6) and the multiple hydraulic rods (2).

8. A multi-cylinder synchronous opening and closing mold mechanism for mold processing according to claim 7, characterized in that: The mechanism also includes a manifold (5), one end of which is pluggably adapted to the connecting pipe (4).

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