Self-lubricating die guide device
By setting a guide lubrication chamber and a multi-channel flow system in the mold guide device, automatic and continuous lubrication is achieved, solving the problem of severe wear in traditional mold guide devices and improving the mold guiding accuracy and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HONGYI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional mold guiding devices lack a self-lubricating mechanism, resulting in severe wear between the guide pillars and guide sleeves, affecting the guiding accuracy and service life of the mold, and making it inconvenient to add lubricating oil.
A self-lubricating mold guiding device was designed, which includes a guide lubrication chamber and a multi-channel flow system in the guide sleeve to achieve automatic and continuous lubrication. Oil is supplied through the top and bottom of the guide sleeve to ensure that the guide post is fully wrapped with lubricant when sliding in the guide sleeve.
It effectively reduces the friction between the guide post and the guide sleeve, improves the guiding accuracy of the mold, extends the service life of the mold, and prevents excessive lubricant from affecting the guiding effect by reasonably controlling the distribution of lubricant.
Smart Images
Figure CN224170225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold accessories technology, specifically to a self-lubricating mold guide device. Background Technology
[0002] In the field of modern mold manufacturing and application, mold guiding devices play an indispensable role as key components that ensure the precise opening and closing of molds, improve mold life and product quality. With the rapid development of the manufacturing industry, the requirements for the precision, production efficiency and stability of molds are becoming increasingly stringent.
[0003] Traditional mold guiding devices, such as the common guide post and guide sleeve structure, have revealed many problems during long-term use. Due to the lack of an effective self-lubricating mechanism, the direct rigid contact between the guide post and the guide sleeve will aggravate wear, resulting in jamming and accelerated wear during mold opening and closing. This not only reduces the guiding accuracy of the mold and affects the dimensional accuracy and surface quality of the product, but also significantly shortens the service life of the mold and increases the production cost of enterprises.
[0004] To reduce wear and extend service life, the mold can only be lubricated by applying pre-applied lubricating oil to the guide pillars after each assembly. Once the pre-applied lubricating oil is depleted, it cannot be easily refilled. At this point, the moving and fixed molds must be separated, and the guide pillars and guide sleeves must also be separated before lubrication can be applied again, which is not conducive to achieving efficient self-lubricating protection. Therefore, we propose a self-lubricating mold guiding device. Utility Model Content
[0005] The purpose of this invention is to provide a self-lubricating mold guiding device to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A self-lubricating mold guiding device includes a guide sleeve mounted on a fixed mold and a guide post mounted on a moving mold. The guide sleeve has a guiding lubrication chamber with its top communicating with the outside. The guide post is located within the guiding lubrication chamber and is slidably connected to it. The guide sleeve has an upper flow channel arranged vertically within its housing. The top of the upper flow channel is connected to the outside. An expanding cavity chamber is located at the bottom of the upper flow channel. A side inlet hole communicating with the guiding lubrication chamber is provided on the inner wall of the expanding cavity chamber. A lower flow channel is provided on the bottom wall of the expanding cavity chamber. A bottom flow channel is located at the bottom of the lower flow channel within the bottom housing of the guide sleeve. Multiple bottom overflow holes communicating with the guiding lubrication chamber are provided on the top wall of the bottom flow channel.
[0008] Preferably, a lower fixed base is fixedly installed at the bottom end of the guide sleeve, and the lower fixed base is fixedly installed on the external mold fixed mold.
[0009] Preferably, an upper fixed base is fixedly installed at the top of the guide post, and the upper fixed base is fixedly installed on the moving mold of the external mold.
[0010] Preferably, a flared groove is provided at the top opening of the upper flow channel, and the cross-section of the flared groove is frustum-shaped.
[0011] Preferably, the top inner diameter of the flared groove is larger than the bottom inner diameter, and the plane containing the inner wall of the flared groove is inclined downward at 45° to 60°.
[0012] Preferably, the guide lubrication chamber has a plurality of side overflow holes on its cavity wall, the cross-section of the side overflow holes is arc-shaped, and the plurality of side overflow holes are arranged along the height direction of the guide sleeve.
[0013] Preferably, the size of the guide post is adapted to the size of the guide lubrication chamber, and the guide post is provided with a plurality of annular hydraulic expansion grooves arranged linearly and at equal intervals, the plurality of annular hydraulic expansion grooves being arranged along the height direction of the guide post.
[0014] Preferably, the bottom end of the guide post is fixedly installed with a bottom arc end, the outer diameter of the bottom arc end decreasing from top to bottom, and the top outer diameter of the bottom arc end is equal to the outer diameter of the guide post.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model achieves automatic and continuous lubrication through the design of a guide sleeve, a guide lubrication chamber, and a flow channel system connected to them. External lubricant can enter the upper flow channel from the flared groove at the top of the guide sleeve, and then flow into the guide lubrication chamber through the flared cavity and the side inlet hole. At the same time, the bottom flow channel also replenishes the guide lubrication chamber with lubricant through the bottom overflow hole. This multi-channel lubrication method ensures that the guide post is always fully wrapped with lubricant when sliding in the guide lubrication chamber, effectively reducing the friction between the guide post and the guide sleeve, achieving automatic lubrication, and improving the guiding accuracy of the mold and extending the service life of the mold.
[0017] 2. This utility model achieves a stable connection between the device and the fixed mold and the moving mold by means of the lower fixed base at the bottom of the guide sleeve and the upper fixed base at the top of the guide post. At the same time, the guide post is matched with the size of the guide lubrication chamber, which further enhances the stability of the structure. The annular liquid expansion groove ensures the lubrication effect while allowing excess lubricant to enter the annular liquid expansion groove, avoiding the situation where the liquid is fully squeezed and the pressure increases.
[0018] 3. This utility model achieves reasonable control and guidance of lubricant through the side overflow hole on the wall of the guide lubrication chamber and the bottom arc end of the guide post. The side overflow hole can store excess lubricant to prevent the guiding effect from being affected by too much lubricant; the bottom arc end can guide the lubricant to be evenly distributed in the guide lubrication chamber and optimize the lubrication effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0021] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 This is a cross-sectional view of the guide sleeve of this utility model;
[0023] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;
[0024] The meanings of the labels in the diagram are as follows:
[0025] 1. Guide sleeve; 10. Lower fixed base; 11. Guide lubrication chamber; 12. Flaring groove; 121. Upper flow channel; 13. Flaring chamber; 131. Side inlet hole; 14. Lower flow channel; 15. Bottom flow channel; 16. Bottom overflow hole; 17. Side overflow hole;
[0026] 2. Guide post; 20. Upper fixed base; 21. Annular hydraulic expansion groove; 22. Bottom arc end. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0028] Please see Figures 1-5 This utility model provides a technical solution: a self-lubricating mold guiding device, including a guide sleeve 1 installed on the fixed mold and a guide post 2 installed on the moving mold. The guide sleeve 1 is provided with a guiding lubrication chamber 11 whose top is connected to the outside. The guide post 2 is located in the guiding lubrication chamber 11 and is slidably connected to the guiding lubrication chamber 11, so that the guide post 2 can slide smoothly in the guide sleeve 1 during the opening and closing of the mold, providing precise guidance for the mold, ensuring the accuracy of the mold opening and closing action, and enabling the mold to operate stably and efficiently.
[0029] Specifically, the housing of the guide sleeve 1 is provided with an upper flow channel 121 arranged vertically. The top of the upper flow channel 121 is connected to the outside, allowing external lubricant to flow in smoothly. The bottom of the upper flow channel 121 is provided with an expanding chamber 13, which makes it easier to inject lubricating oil through the expanding chamber 13. The inner wall of the expanding chamber 13 is provided with a side inlet hole 131 that is connected to the guide lubrication chamber 11, which can guide the lubricant to flow into the guide lubrication chamber 11 from the side, making the lubricant distribution more uniform and improving the lubrication effect.
[0030] Specifically, a lower flow channel 14 is provided on the bottom wall of the expansion chamber 13, and a bottom flow channel 15 is provided at the bottom of the lower flow channel 14. The bottom flow channel 15 is located inside the bottom shell of the guide sleeve 1. Multiple bottom overflow holes 16 are provided on the top wall of the bottom flow channel 15, which are all connected to the guide lubrication chamber 11. This enables the replenishment of lubricant to the guide lubrication chamber 11 from the bottom, further ensuring that there is always sufficient lubricant in the guide lubrication chamber 11 and maintaining a good lubrication state. Subsequently, as the guide post 2 moves up and down, the guide post 2 can be wrapped by the lubricating oil in the guide lubrication chamber 11, realizing self-lubrication operation.
[0031] In this embodiment, a lower fixed base 10 is fixedly installed at the bottom of the guide sleeve 1, and the lower fixed base 10 is fixedly installed on the fixed mold of the external mold by multiple fastening screws; an upper fixed base 20 is fixedly installed at the top of the guide post 2, and the upper fixed base 20 is fixedly installed on the moving mold of the external mold by multiple fastening screws, so as to achieve stable fixed installation operation.
[0032] Specifically, a flared groove 12 is provided at the top orifice of the upper flow channel 121. The cross-section of the flared groove 12 is frustum-shaped. The inner diameter of the top of the flared groove 12 is larger than the inner diameter of the bottom. The plane of the inner wall of the flared groove 12 is inclined downward at 45°~60°, which facilitates the rapid and accurate flow of lubricant into the upper flow channel 121 and improves the lubricant addition efficiency.
[0033] Furthermore, the guide lubrication chamber 11 is provided with multiple side overflow holes 17 on its cavity wall. The cross-section of the side overflow holes 17 is arc-shaped. The multiple side overflow holes 17 are arranged along the height direction of the guide sleeve 1. Through the multiple side overflow holes 17, it can be ensured that after the guide post 2 is inserted into the guide lubrication chamber 11, the excess lubricating oil in the guide lubrication chamber 11 can be stored in the side overflow holes 17, preventing the guiding effect from being affected by excessive lubricant. At the same time, the arc-shaped design allows the lubricant in the subsequent side overflow holes 17 to continue to flow into the guide lubrication chamber 11, achieving a continuous lubrication effect.
[0034] In addition, the size of the guide post 2 is adapted to the size of the guide lubrication chamber 11. The guide post 2 is provided with a plurality of annular hydraulic expansion grooves 21 arranged linearly and equally spaced. The plurality of annular hydraulic expansion grooves 21 are arranged along the height direction of the guide post 2. These annular hydraulic expansion grooves 21 can store a certain amount of lubricant, and continuously provide lubrication between the guide post 2 and the cavity wall of the guide lubrication chamber 11 during the sliding process of the guide post 2, thereby further improving the lubrication effect.
[0035] It is worth noting that the bottom end of the guide post 2 is fixedly installed with a bottom arc end 22. The outer diameter of the bottom arc end 22 decreases from top to bottom. The top outer diameter of the bottom arc end 22 is equal to the outer diameter of the guide post 2. When the guide post 2 is inserted into the guide lubrication chamber 11, the bottom arc end 22 can play a guiding role, making it easier and more accurate for the guide post 2 to enter the guide lubrication chamber 11. At the same time, the bottom arc end 22 can guide the lubricant to be evenly distributed in the guide lubrication chamber 11, optimize the lubrication effect, and reduce damage to the cavity wall of the guide lubrication chamber 11 during the insertion process.
[0036] When using the self-lubricating mold guide device of this utility model, the lower fixed base 10 is firmly installed on the fixed mold with multiple fastening screws, and the upper fixed base 20 is installed on the moving mold with multiple fastening screws, so that the guide post 2 is tightly connected to the moving mold, preparing for the subsequent mold opening and closing movement.
[0037] Next, lubricant is added through the flared groove 12 at the top of the upper flow channel 121 of the guide sleeve 1. The lubricant then enters the flared chamber 13. Part of the lubricant flows into the guide lubrication chamber 11 through the side inlet hole 131 on the inner wall of the flared chamber 13, achieving uniform lubrication on the side. The other part enters the guide lubrication chamber 11 through the lower flow channel 14 and bottom flow channel 15 on the bottom wall of the flared chamber 13, and from the bottom overflow hole 16, ensuring that there is always sufficient lubricant in the chamber.
[0038] During the mold opening and closing process, the moving mold drives the guide post 2 to slide in the guide lubrication chamber 11. Since the guide lubrication chamber 11 has stored an appropriate amount of lubricating oil, each time the guide post 2 is inserted into the guide lubrication chamber 11, the lubricating oil in the guide lubrication chamber 11 can coat the surface of the guide post 2, realizing self-lubrication operation during each mold opening and closing process.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A self-lubricating mold guiding device, comprising a guide sleeve (1) mounted on the fixed mold and a guide post (2) mounted on the moving mold, characterized in that: The guide sleeve (1) is provided with a guide lubrication chamber (11) whose top is connected to the outside. The guide post (2) is located in the guide lubrication chamber (11) and is slidably connected to the guide lubrication chamber (11). The shell of the guide sleeve (1) is provided with an upper flow channel (121) arranged vertically. The top of the upper flow channel (121) is connected to the outside. The bottom of the upper flow channel (121) is provided with an expanding oral cavity (13). The inner wall of the cavity is provided with a side inlet hole (131) that communicates with the guide lubrication chamber (11). The bottom wall of the expansion chamber (13) is provided with a lower flow channel (14). The bottom of the lower flow channel (14) is provided with a bottom flow channel (15). The bottom flow channel (15) is located in the bottom shell of the guide sleeve (1). The top wall of the bottom flow channel (15) is provided with a plurality of bottom overflow holes (16) that communicate with the guide lubrication chamber (11).
2. The self-lubricating mold guiding device according to claim 1, characterized in that: The bottom end of the guide sleeve (1) is fixedly installed with a lower fixed base (10), and the lower fixed base (10) is fixedly installed on the external mold fixed mold.
3. The self-lubricating mold guiding device according to claim 1, characterized in that: The top of the guide post (2) is fixedly installed with an upper fixed base (20), which is fixedly installed on the moving mold of the external mold.
4. The self-lubricating mold guiding device according to claim 1, characterized in that: The top opening of the upper channel (121) is provided with a flared groove (12), and the cross section of the flared groove (12) is frustum-shaped.
5. The self-lubricating mold guiding device according to claim 4, characterized in that: The top inner diameter of the flared groove (12) is larger than the bottom inner diameter, and the plane on which the inner wall of the flared groove (12) is located is inclined downward at 45°~60°.
6. The self-lubricating mold guiding device according to claim 1, characterized in that: The guide lubrication chamber (11) has a plurality of side overflow holes (17) on its cavity wall. The cross-section of the side overflow holes (17) is arc-shaped, and the plurality of side overflow holes (17) are arranged along the height direction of the guide sleeve (1).
7. The self-lubricating mold guiding device according to claim 1, characterized in that: The size of the guide post (2) is adapted to the size of the guide lubrication chamber (11). The guide post (2) is provided with a plurality of annular hydraulic expansion grooves (21) arranged linearly and at equal intervals. The plurality of annular hydraulic expansion grooves (21) are arranged along the height direction of the guide post (2).
8. The self-lubricating mold guiding device according to claim 1, characterized in that: The bottom end of the guide post (2) is fixedly installed with a bottom arc end (22). The outer diameter of the bottom arc end (22) decreases from top to bottom. The top outer diameter of the bottom arc end (22) is equal to the outer diameter of the guide post (2).