Bidirectional buffering and guiding mechanism for mold blank guide sleeve
By using a bidirectional buffer guide mechanism for the mold blank guide sleeve, which employs a trapezoidal moving block, an oblique connecting rod, and a multi-stage spring structure, the problem of traditional guide sleeve systems being unable to cope with lateral forces is solved, achieving stable guidance of the mold and reducing wear, thus lowering maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JINGLIAN MOLD BASE CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional guide sleeve systems only provide guidance in one direction and cannot effectively cope with lateral forces or off-center loads during mold opening and closing, leading to mold skewing or wear. They also require high-precision manufacturing and frequent replacement, increasing maintenance costs.
A bidirectional buffer guide mechanism for mold blank guide sleeve was designed, which adopts a trapezoidal moving block, oblique connecting rod, rubber convex strip and multi-stage spring structure. The multi-stage spring absorbs impact force, disperses and reduces impact force, and improves system stability and adaptability.
It effectively buffers the impact force during the mold opening and closing process, reduces wear, improves mold manufacturing accuracy and service life, reduces maintenance costs, and ensures stable equipment operation.
Smart Images

Figure CN224240225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of buffer guide mechanisms, specifically a bidirectional buffer guide mechanism for a mold guide sleeve. Background Technology
[0002] In mold applications such as injection molding and stamping, mold blank guide bushings (guide pillars and guide bushings) are key components used for positioning and guiding when the mold opens and closes. Traditional guide bushing systems have some limitations, and the bidirectional buffer guide mechanism was proposed to solve these problems.
[0003] Traditional guide bushings typically only provide guidance in one direction, failing to effectively handle lateral forces or off-center loads during mold opening and closing. This can easily lead to mold skewing or wear. The hard contact between the guide post and the guide bushing generates significant impact forces during mold opening and closing, causing damage to the guide post, guide bushing, or mold body, while also generating noise. Traditional guide bushings require extremely high precision in mold manufacturing and assembly; even minor errors can lead to guide failure or jamming. Frequent impacts and friction accelerate the wear of the guide post and guide bushing, necessitating regular replacement and increasing maintenance costs and downtime. To address these issues, we propose a bidirectional buffer guide mechanism for mold blank guide bushings. Utility Model Content
[0004] The purpose of this invention is to provide a bidirectional buffer guide mechanism for mold blank guide sleeves to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bidirectional buffer guide mechanism for a mold blank guide sleeve, comprising a mounting plate, with connecting plates fixedly connected to both the upper and lower ends of the mounting plate, the right side of the mounting plate being fixedly mounted on an operating plate, a groove being provided inside the mounting plate, and a moving block being connected to the groove via a first spring, and a buffer plate being connected to the moving block via a connecting rod, a sleeve rod being fixedly connected to the middle position of the mounting plate near the buffer plate, and a second spring being sleeved on the outer side of the sleeve rod, and a telescopic rod being connected inside the sleeve rod via a third spring.
[0006] Preferably, a locking bolt is inserted into the connecting plate, and a locking groove is formed on the connecting plate to cooperate with the locking bolt, so that the connecting plate can be installed through the locking bolt.
[0007] Preferably, a first spring is fixedly connected in the groove of the mounting plate, and a movable block is fixedly connected to the other end of the first spring.
[0008] Preferably, the movable block is configured in a trapezoidal structure, and the mounting plate is provided with a trapezoidal slot that cooperates with the movable block. By configuring the movable block in a trapezoidal structure, the stability of the movable block during movement is increased.
[0009] Preferably, the movable block is hinged to the back side of the buffer plate via a connecting rod, and the connecting rod is configured in an oblique shape.
[0010] Preferably, the other end of the buffer plate has rubber protrusions evenly distributed.
[0011] Preferably, both ends of the second spring are fixedly connected to the buffer plate and the mounting plate, the telescopic rod is configured in a T-shape, the sleeve rod has a slot that matches the telescopic rod, and both ends of the third spring are fixedly connected to the telescopic rod and the sleeve rod, so that the impact force received by the sleeve rod, the telescopic rod and the third spring can be reduced.
[0012] This utility model provides a bidirectional buffer and guiding mechanism for a mold guide sleeve, which has the following beneficial effects:
[0013] By providing locking bolts on the connecting plate, the connecting plate can be disassembled or installed, which in turn makes the mounting plate easier to disassemble or install, thus making the device more convenient to maintain.
[0014] When the device is subjected to an impact, the buffer plate is compressed, which in turn compresses the connecting rod connected to it. The connecting rod drives the moving block to move, and the moving block presses against the first spring. At the same time, the buffer plate presses against the second spring and the telescopic rod, and the telescopic rod applies pressure to the third spring. Through the first, second, and third springs, part of the impact force can be reduced, thus playing a buffering role. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0017] Figure 2 This is an exploded structural diagram of the mounting plate and operation plate of this utility model;
[0018] Figure 3 This is an exploded structural diagram of the mounting plate and the movable block of this utility model;
[0019] Figure 4 This is a cross-sectional structural diagram of the sleeve rod of this utility model.
[0020] In the diagram: 1. Mounting plate; 2. Connecting plate; 3. Operating plate; 4. First spring; 5. Moving block; 6. Connecting rod; 7. Buffer plate; 8. Sleeve rod; 9. Second spring; 10. Third spring; 11. Telescopic rod. 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 see Figure 1-4 This utility model provides a technical solution: a bidirectional buffer guide mechanism for a mold blank guide sleeve, including a mounting plate 1, with connecting plates 2 fixedly connected to both the upper and lower ends of the mounting plate 1, the right side of the mounting plate 1 fixedly mounted on an operating plate 3, a groove being provided inside the mounting plate 1, and a moving block 5 being connected to the groove through a first spring 4, and a buffer plate 7 being connected to the moving block 5 through a connecting rod 6, a sleeve rod 8 being fixedly connected to the middle position of the mounting plate 1 near the buffer plate 7, and a second spring 9 being sleeved on the outer side of the sleeve rod 8, and a telescopic rod 11 being connected inside the sleeve rod 8 through a third spring 10.
[0023] A locking bolt is inserted into the connecting plate 2, and a locking groove is opened on the connecting plate 2 to cooperate with the locking bolt. The locking groove provides a clear position reference for the locking bolt, ensuring that the relative position of the connecting plate 2 with other components (such as guide sleeves and mold blanks) is accurate and avoiding misalignment or displacement. The geometry of the locking groove can limit the movement range of the locking bolt and prevent the connecting plate 2 from rotating or sliding when subjected to force. The tight fit between the locking bolt and the locking groove can effectively prevent the connecting plate 2 from loosening due to vibration or impact during equipment operation, ensuring long-term stable fixation. By designing the depth or shape of the locking groove, the self-locking function of the locking bolt can be realized, further preventing loosening.
[0024] A first spring 4 is fixedly connected to the groove of the mounting plate 1, and a movable block 5 is fixedly connected to the other end of the first spring 4. The movable block 5 is trapezoidal in shape. The mounting plate 1 has a trapezoidal slot that mates with the movable block 5. The movable block 5 is hinged to the back of the buffer plate 7 via a connecting rod 6. The connecting rod 6 is oblique in shape. Rubber protrusions are evenly distributed on the other end of the buffer plate 7. Both ends of the second spring 9 are fixedly connected to the buffer plate 7 and the mounting plate 1. The telescopic rod 11 is T-shaped. The sleeve rod 8 has a slot that mates with the telescopic rod 11. Both ends of the third spring 10 are fixedly connected to the telescopic rod 11 and the sleeve rod 8. The first spring 4 The movable block 5 provides elastic support, allowing it to compress or stretch under external force, absorbing impact energy and reducing direct impact on the mounting plate 1. After the external force is removed, the elastic force of the first spring 4 pushes the movable block 5 back to its initial position, ensuring the system quickly returns to its original state. The trapezoidal structure of the movable block 5 fits tightly with the trapezoidal slot on the mounting plate 1, limiting the direction of movement of the movable block 5 and preventing tilting or offset. The geometry of the slot limits the stroke range of the movable block 5, avoiding excessive compression or stretching of the first spring 4. The trapezoidal structure design ensures uniform stress distribution on the movable block 5 under force, reducing local wear or deformation. The elasticity of the first spring 4 and the limiting effect of the movable block 5 can... Effective vibration absorption and improved system stability: The oblique structure of the connecting rod 6 disperses the impact force on the buffer plate 7 into multiple directions, avoiding excessive force in one direction. The oblique design can cope with impact forces from different angles, improving the system's adaptability. The hinged connection between the connecting rod 6, the moving block 5, and the buffer plate 7 allows the buffer plate 7 to rotate freely within a certain range, avoiding jamming or damage caused by external forces. The hinged structure reduces friction and wear, extending the service life of the connecting rod 6 and the buffer plate 7. The second spring 9 provides elastic support for the buffer plate 7, absorbing most of the impact force. The friction and elastic deformation between the rubber convex strip and the contact surface can further absorb the remaining energy, reducing... Minimal vibration transmission is achieved through the flexible material of the rubber ridges, which prevent direct hard contact between the buffer plate 7 and the contact surface, avoiding scratches or wear. The rubber ridges also fill gaps, providing a certain degree of sealing to prevent dust or impurities from entering. The rubber ridges are evenly distributed on the buffer plate 7, ensuring uniform force distribution and preventing excessive local pressure. The third spring 10 provides elastic support for the telescopic rod 11, which can be compressed or stretched when subjected to external force to absorb impact energy. After the external force is removed, the elastic force of the third spring 10 can push the telescopic rod 11 back to its initial position, ensuring that the system quickly returns to its original state. The T-shaped structure design ensures uniform stress distribution on the telescopic rod 11 when subjected to force, reducing local wear or deformation.
[0025] Working principle: Mounting plate 1 is installed with locking bolt via connecting plate 2. The locking bolt is inserted into connecting plate 2. At the same time, the locking bolt can be pulled out to disassemble connecting plate 2 and mounting plate 1.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A bidirectional buffer guide mechanism for a mold blank guide sleeve, comprising a mounting plate (1), characterized in that: The mounting plate (1) is fixedly connected to the upper and lower ends of the mounting plate (2). The right side of the mounting plate (1) is fixedly installed on the operating plate (3). The mounting plate (1) has a groove inside, and a moving block (5) is connected to the groove through a first spring (4). The moving block (5) is connected to a buffer plate (7) through a connecting rod (6). A sleeve rod (8) is fixedly connected to the middle position of the mounting plate (1) near the buffer plate (7). A second spring (9) is sleeved on the outside of the sleeve rod (8). A telescopic rod (11) is connected inside the sleeve rod (8) through a third spring (10).
2. The bidirectional buffer guide mechanism for a mold blank guide sleeve according to claim 1, characterized in that: A locking bolt is inserted into the connecting plate (2), and a locking groove that cooperates with the locking bolt is opened on the connecting plate (2).
3. The bidirectional buffer guide mechanism for a mold blank guide sleeve according to claim 1, characterized in that: A first spring (4) is fixedly connected in the groove of the mounting plate (1), and a moving block (5) is fixedly connected to the other end of the first spring (4).
4. The bidirectional buffer guide mechanism for a mold blank guide sleeve according to claim 1, characterized in that: The movable block (5) is configured in a trapezoidal structure, and the mounting plate (1) is provided with a trapezoidal slot that cooperates with the movable block (5).
5. The bidirectional buffer guide mechanism for a mold blank guide sleeve according to claim 1, characterized in that: The movable block (5) is hinged to the back side of the buffer plate (7) via a connecting rod (6), which is arranged in an oblique structure.
6. The bidirectional buffer guide mechanism for a mold blank guide sleeve according to claim 1, characterized in that: The other end of the buffer plate (7) has rubber ridges evenly distributed.
7. The bidirectional buffer guide mechanism for a mold blank guide sleeve according to claim 1, characterized in that: Both ends of the second spring (9) are fixedly connected to the buffer plate (7) and the mounting plate (1). The telescopic rod (11) is configured in a T-shape. The sleeve rod (8) has a slot that matches the telescopic rod (11). Both ends of the third spring (10) are fixedly connected to the telescopic rod (11) and the sleeve rod (8).