A self-lubricating guide sleeve assembly for mold processing

Abstract

This utility model relates to the field of mold guide sleeve technology, specifically a self-lubricating guide sleeve assembly for mold processing, comprising: a guide post and a guide sleeve; the guide post is movably sleeved in the through hole of the guide sleeve, and three sets of ball bearings are equidistantly and movably embedded in the inner wall of the through hole of the guide sleeve, and a lubrication assembly is provided on the guide sleeve; a filter plate is installed in the oil injection pipe, and the filter plate filters impurities in the lubricating oil. During the movement of the support plate along the guide post towards the guide sleeve, the second push rod first pushes the triangular limit plate to the right to unlock the triangular push plate, and then the end of the first push rod pushes the triangular push plate and the support plate downward, so that the sealing piston moves to expose the oil inlet, and the lubricating oil in the oil storage cavity flows to the ball bearings located on the upper two sides, while the lubricating oil seeping out from the ball bearings on the upper two sides flows through the oil groove to the ball bearing located on the middle bottom side; thus, during the movement of the guide post, the lubricating oil automatically lubricates the ball bearings to ensure smooth cooperation between the guide post and the guide sleeve, reducing manual operation.

Description

Technical Field

[0001] This utility model relates to the field of mold guide sleeve technology, specifically a self-lubricating guide sleeve assembly for mold processing. Background Technology

[0002] Chinese patent document CN221362294U discloses a guide post and guide sleeve. By setting the head of the post to be circular, when the guide post and guide sleeve need to be installed, the head of the post first enters the guide sleeve, which positions the post so that the post can be smoothly embedded into the guide sleeve, thus completing the limiting installation of the guide post and guide sleeve. In this way, the guide post will not cause wear on the inner wall of the guide sleeve when it is embedded in the guide sleeve, thereby not affecting the fit precision between the guide post and guide sleeve. When the guide post and guide sleeve need to be removed, even if the guide post and guide sleeve are tilted, the circular head of the post and the arc-shaped groove on the bottom surface will prevent the head of the post from getting stuck between the inner wall of the guide sleeve. Instead, it can slide out of the guide sleeve smoothly with the help of the arc surface of the head of the post and the arc surface of the groove, without causing wear on the inner wall of the guide sleeve, and thus not affecting the fit precision between the guide post and guide sleeve.

[0003] However, in the above-mentioned solutions and existing technologies, the guide pillars are used in conjunction with the guide sleeves to guide the mold movement. During use, personnel need to periodically drip lubricating oil into the guide sleeves with a dropper to ensure smooth movement of the guide pillars and guide sleeves, which is inconvenient and requires improvement and optimization. Utility Model Content

[0004] The purpose of this invention is to provide a self-lubricating guide sleeve assembly for mold processing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating guide sleeve assembly for mold processing, comprising: a guide post and a guide sleeve; the guide post is movably sleeved in the through hole of the guide sleeve, and bead grooves are equidistantly arranged in annular grooves on the peripheral wall of the guide post; three sets of balls are equidistantly and annularly fitted in annular grooves on the inner wall of the through hole of the guide sleeve, and an oil flow groove is provided between the balls located on the upper two sides and the balls located on the middle bottom side; the balls are movably engaged in the bead grooves, and a lubrication assembly is provided on the guide sleeve.

[0006] Preferably, the lubrication assembly includes an oil reservoir, a piston chamber, a support plate, a sealing piston, an oil injection pipe, a filter plate, and a support plate. The oil reservoir is located inside the guide sleeve. Four oil inlets are equidistantly provided at the end of the oil reservoir. A piston chamber is provided at the bottom of the oil inlets. An oil groove is provided at the bottom of the piston chamber to connect the moving position of the ball bearing. The support plate is movably disposed on the upper end of the guide sleeve.

[0007] Preferably, the bottom wall of the support plate is provided with a support rod in a matrix connection. The support rod extends through the guide sleeve into the oil inlet. A sealing piston is fixedly sleeved at the bottom end of the support rod. The sealing piston is movably disposed in the piston cavity and is inserted into the oil inlet. A first spring is sleeved on the support rod. The two ends of the first spring are respectively engaged with the support plate and the guide sleeve.

[0008] Preferably, the guide sleeve is provided with an oil injection pipe that communicates with the oil storage chamber. The inner wall of the oil injection pipe is symmetrically provided with grooves. A filter plate is movably inserted into the oil injection pipe. L-shaped inserts are symmetrically connected to the periphery of the filter plate. The L-shaped inserts are fitted into the grooves. An L-shaped elastic buckle is connected to the end wall of the oil injection pipe. The L-shaped elastic buckle is fastened to the end wall of the L-shaped insert.

[0009] Preferably, a triangular push plate is connected to the side wall of the support plate, a trapezoidal groove is provided on the side wall of the guide sleeve, a trapezoidal slider is movably engaged in the trapezoidal groove, a second spring is provided on the side end of the trapezoidal slider, a triangular limiting plate is connected to the side wall of the trapezoidal slider, and the end wall of the triangular limiting plate abuts against the bottom side of the triangular push plate.

[0010] Preferably, a support plate is connected to the peripheral wall of the guide post, and a first push rod and a second push rod are connected to the support plate. The ends of the first push rod and the second push rod are both arc-shaped. The length of the second push rod is greater than the length of the first push rod. The end of the first push rod is in contact with the inclined surface of the triangular push plate, and the second push rod is in contact with the inclined surface of the triangular limiting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By installing the filter plate into the oil injection pipe, the filter plate filters impurities in the lubricating oil. As the support plate moves with the guide post towards the guide sleeve, the second push rod first pushes the triangular limit plate to the right to unlock the triangular push plate. Then, the end of the first push rod pushes the triangular push plate and the support plate downward, causing the sealing piston to move and expose the oil inlet. The lubricating oil in the oil storage chamber flows to the balls located on the upper two sides. At the same time, the lubricating oil seeping out from the balls on the upper two sides flows through the oil groove to the balls located on the middle bottom side. This achieves automatic lubrication of the balls by the lubricating oil during the movement of the guide post, ensuring smooth operation of the guide post and the guide sleeve and reducing manual operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the guide post structure connection of this utility model; Figure 3 This is a schematic diagram of the guide sleeve structure connection of this utility model; Figure 4 This is an exploded view of the guide sleeve structure connection of this utility model; Figure 5 This is a half-sectional view of the guide sleeve structure connection of this utility model.

[0013] In the diagram: 1. Guide post; 2. Guide sleeve; 3. Ball groove; 4. Ball bearing; 5. Oil flow groove; 6. Oil storage chamber; 7. Oil inlet; 8. Piston chamber; 9. Oil groove; 10. Support plate; 11. Support rod; 12. Sealing piston; 13. First spring; 14. Oil injection pipe; 15. Embedded groove; 16. Filter plate; 17. L-shaped insert; 18. L-shaped elastic buckle; 19. Triangular push plate; 20. Trapezoidal slide groove; 21. Trapezoidal slider; 22. Second spring; 23. Triangular limiting plate; 24. Support plate; 25. First push rod; 26. Second push rod. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please see Figures 1-5 This utility model provides a technical solution: a self-lubricating guide sleeve assembly for mold processing, comprising: a guide post 1 and a guide sleeve 2; the guide post 1 is movably sleeved in the through hole of the guide sleeve 2, and bead grooves 3 are equidistantly arranged in annular on the peripheral wall of the guide post 1; three sets of balls 4 are equidistantly and movably embedded in the inner wall of the through hole of the guide sleeve 2, and an oil flow groove 5 is provided between the balls 4 located on the upper two sides and the balls 4 located on the middle bottom side; the balls 4 are movably engaged in the bead grooves 3, and a lubrication assembly is provided on the guide sleeve 2.

[0016] There are three ball grooves 3. The balls 4 are movably engaged in the ball grooves 3 to ensure that the guide post 1 moves smoothly and stably horizontally in the through hole of the guide sleeve 2. The balls 4 are arranged in groups of two horizontally. An oil flow groove 5 is provided between the balls 4 on the upper two sides and the balls 4 on the middle bottom side. The lubricating oil that seeps out from the balls 4 on the upper two sides flows through the oil flow groove 5 to the balls 4 on the middle bottom side.

[0017] The oil storage chamber 6 in the lubrication assembly is opened inside the guide sleeve 2. Four oil inlets 7 are equidistantly opened at the end of the oil storage chamber 6. A piston chamber 8 is opened at the bottom of the oil inlet 7. An oil groove 9 is opened at the bottom of the piston chamber 8 to connect the moving position of the ball 4. The support plate 10 is movably arranged on the upper end of the guide sleeve 2.

[0018] The lubricating oil in the oil storage chamber 6 flows into the piston chamber 8 through the oil inlet 7, and flows from the oil groove 9 at the bottom of the piston chamber 8 to the ball bearings 4 located on both sides above for lubrication.

[0019] The bottom wall of the support plate 10 is matrix-connected with a support rod 11. The support rod 11 passes through the guide sleeve 2 and extends into the oil port 7. A sealing piston 12 is fixedly sleeved at the bottom end of the support rod 11. The sealing piston 12 is movably disposed in the piston chamber 8 and is inserted into the oil port 7. A first spring 13 is sleeved on the support rod 11. The two ends of the first spring 13 are respectively engaged with the support plate 10 and the guide sleeve 2.

[0020] When the first spring 13 is in a compressed state, the first spring 13 returns to its original position and pushes the support plate 10 upward. As the support plate 10 moves upward, the sealing piston 12 can be inserted to block the oil port 7.

[0021] The guide sleeve 2 is provided with an oil injection pipe 14 that connects to the oil storage chamber 6. The inner wall of the oil injection pipe 14 is symmetrically provided with grooves 15. A filter plate 16 is movably inserted into the oil injection pipe 14. L-shaped inserts 17 are symmetrically connected to the periphery of the filter plate 16. The L-shaped inserts 17 are fitted into the grooves 15. An L-shaped elastic buckle 18 is connected to the end wall of the oil injection pipe 14. The L-shaped elastic buckle 18 is fastened to the end wall of the L-shaped insert 17.

[0022] The oil injection pipe 14 is used to inject lubricating oil into the oil storage chamber 6. The L-shaped insert 17 and the groove 15 are fitted together for positioning and installing the filter plate 16. The filter plate 16 filters impurities and prevents impurities from entering the oil storage chamber 6. When the L-shaped elastic buckle 18 is fastened to the end wall of the L-shaped insert 17, the inner side wall of the L-shaped elastic buckle 18 fits against the end wall of the L-shaped insert 17, thereby limiting the movement of the L-shaped insert 17.

[0023] A triangular push plate 19 is connected to the side wall of the support plate 10, and a trapezoidal slide groove 20 is opened on the side wall of the guide sleeve 2. A trapezoidal slider 21 is movably engaged in the trapezoidal slide groove 20. A second spring 22 is provided on the side end of the trapezoidal slider 21. A triangular limiting plate 23 is connected to the side wall of the trapezoidal slider 21, and the end wall of the triangular limiting plate 23 abuts against the bottom side of the triangular push plate 19.

[0024] The second spring 22 is in a compressed state. The second spring 22 returns to the original state and pushes the trapezoidal slider 21 to the left end of the trapezoidal slide groove 20. The end wall of the triangular limiting plate 23 abuts against the bottom side of the triangular push plate 19, so that the limiting support plate 10 moves downward, avoiding accidental pressing of the support plate 10 during oil injection, which would cause the sealing piston 12 to fail to block the oil passage 7.

[0025] A support plate 24 is connected to the periphery of the guide post 1. A first push rod 25 and a second push rod 26 are connected to the support plate 24. The ends of the first push rod 25 and the second push rod 26 are both arc-shaped. The length of the second push rod 26 is greater than the length of the first push rod 25. The end of the first push rod 25 is in contact with the inclined surface of the triangular push plate 19, and the second push rod 26 is in contact with the inclined surface of the triangular limiting plate 23.

[0026] The first push rod 25 is used to push the triangular push plate 19 and the support plate 10 downward, and the second push rod 26 is used to push the triangular limit plate 23 to move to the right to unlock the triangular push plate 19.

[0027] Working principle: After pushing the L-shaped elastic buckle 18 outward, the filter plate 16 is positioned and inserted into the oil injection pipe 14 until the L-shaped insert 17 is engaged with the groove 15. Then, the L-shaped elastic buckle 18 is released, and the L-shaped elastic buckle 18 resets and engages with the end wall of the L-shaped insert 17. At this time, the inner wall of the L-shaped elastic buckle 18 adheres to the end wall of the L-shaped insert 17, thus limiting the movement of the L-shaped insert 17. Lubricating oil is injected into the oil storage chamber 6 through the oil injection pipe 14. The filter plate 16 filters impurities in the lubricating oil. The guide post 1 moves horizontally with the mold in the through hole of the guide sleeve 2. During the movement of the support plate 24 in the direction of the guide post 1 towards the guide sleeve 2, the second push rod 26 first engages with the inclined surface of the triangular limiting plate 23. As the support plate 24 moves, the second push rod 26 pushes the triangular limiting plate 23 to the right, causing the trapezoidal slider 21 to compress the second spring 22. The triangular limit plate 23 stops abutting against the bottom side of the triangular push plate 19, thus unlocking the triangular push plate 19. Then, the end of the first push rod 25 engages with the inclined surface of the triangular push plate 19. As the support plate 24 moves, the first push rod 25 pushes the triangular push plate 19 and the support plate 10 downward. The support plate 10 moves downward and compresses the first spring 13. The sealing piston 12 moves downward with the support plate 10, exposing the oil port 7. The lubricating oil in the oil storage chamber 6 flows into the piston chamber 8 through the oil port 7 and flows from the oil groove 9 at the bottom of the piston chamber 8 to the ball bearings 4 located on both sides above for lubrication. At the same time, the lubricating oil seeping out from the ball bearings 4 on both sides above flows through the oil groove 5 to the ball bearing 4 located on the bottom side in the middle. During the movement of the guide post 1, the lubricating oil automatically lubricates the ball bearings 4 to ensure smooth operation of the guide post 1 and the guide sleeve 2, reducing manual operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating guide sleeve assembly for mold processing, comprising: Guide post (1), guide sleeve (2); the guide post (1) is movably sleeved in the through hole of the guide sleeve (2), and bead grooves (3) are equidistantly arranged in annular on the peripheral wall of the guide post (1). Three sets of balls (4) are equidistantly and movably embedded in the inner wall of the through hole of the guide sleeve (2). An oil flow groove (5) is provided between the balls (4) located on the upper two sides and the balls (4) located on the middle bottom side. The feature is that the ball (4) is movably engaged in the ball groove (3), and a lubrication component is provided on the guide sleeve (2).

2. The self-lubricating guide sleeve assembly for mold processing according to claim 1, characterized in that: The lubrication assembly includes an oil storage chamber (6), a piston chamber (8), a support plate (10), a sealing piston (12), an oil injection pipe (14), a filter plate (16), and a support plate (24). The oil storage chamber (6) is located inside the guide sleeve (2). Four oil inlets (7) are equidistantly provided at the end of the oil storage chamber (6). The piston chamber (8) is located at the bottom of the oil inlet (7). The oil groove (9) is located at the bottom of the piston chamber (8) to connect the moving position of the ball (4). The support plate (10) is movably arranged on the upper end of the guide sleeve (2).

3. The self-lubricating guide sleeve assembly for mold processing according to claim 2, characterized in that: The bottom wall of the support plate (10) is connected with a support rod (11). The support rod (11) passes through the guide sleeve (2) and extends into the oil port (7). The bottom end of the support rod (11) is fixedly fitted with a sealing piston (12). The sealing piston (12) is movably arranged in the piston cavity (8). The sealing piston (12) is inserted into the oil port (7). The support rod (11) is fitted with a first spring (13). The two ends of the first spring (13) are respectively engaged with the support plate (10) and the guide sleeve (2).

4. The self-lubricating guide sleeve assembly for mold processing according to claim 3, characterized in that: The guide sleeve (2) is provided with an oil injection pipe (14) that connects to the oil storage chamber (6). The inner wall of the oil injection pipe (14) is symmetrically provided with grooves (15). A filter plate (16) is movably inserted into the oil injection pipe (14). An L-shaped insert (17) is symmetrically connected to the periphery of the filter plate (16). The L-shaped insert (17) is embedded in the groove (15). An L-shaped elastic buckle (18) is connected to the end wall of the oil injection pipe (14). The L-shaped elastic buckle (18) is fastened to the end wall of the L-shaped insert (17).

5. A self-lubricating guide sleeve assembly for mold processing according to claim 3, characterized in that: A triangular push plate (19) is connected to the side wall of the support plate (10), and a trapezoidal slide groove (20) is opened on the side wall of the guide sleeve (2). A trapezoidal slider (21) is movably engaged in the trapezoidal slide groove (20). A second spring (22) is provided on the side end of the trapezoidal slider (21). A triangular limiting plate (23) is connected to the side wall of the trapezoidal slider (21), and the end wall of the triangular limiting plate (23) abuts against the bottom side of the triangular push plate (19).

6. The self-lubricating guide sleeve assembly for mold processing according to claim 1, characterized in that: A support plate (24) is connected to the periphery of the guide post (1). A first push rod (25) and a second push rod (26) are connected to the support plate (24). The ends of the first push rod (25) and the second push rod (26) are both arc-shaped. The length of the second push rod (26) is greater than the length of the first push rod (25). The end of the first push rod (25) is in contact with the inclined surface of the triangular push plate (19), and the second push rod (26) is in contact with the inclined surface of the triangular limiting plate (23).

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