Self-lubricating guide pillar guide sleeve

Abstract

The utility model discloses a self-lubricating guide pillar guide sleeve which comprises a guide sleeve and a guide pillar, an inner cavity used for containing and being matched with the guide pillar is formed in the guide sleeve, an annular groove is formed in the curved surface of the inner cavity, and the self-lubricating guide pillar guide sleeve further comprises a lubricating mechanism used for supplying oil to the annular groove. A buffer plate is further arranged in the inner cavity, the buffer plate is connected to the bottom face of the inner cavity through a first spring, when the guide column enters the guide sleeve every time, quantitative oil in the oil storage sleeve can be pumped into the annular groove and acts on the guide column, automatic lubricating work is achieved, the service life of the guide column is prolonged, and the service life of the guide column is prolonged. The maintenance frequency of workers on the guide column and the guide sleeve is reduced, and the service life is prolonged; a worker can adjust the oil pumping amount each time by adjusting the relative position between the top plate and the guide column, waste is avoided, and the adjusting range is widened.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an automatically lubricated guide post and guide sleeve. Background Technology

[0002] Guide pillars and guide bushings are important components used for guiding and positioning in molds or some mechanical equipment. Guide pillars are usually slender rods, while guide bushings are generally cylindrical components whose inner diameter matches the outer diameter of the guide pillar.

[0003] To reduce wear, improve the service life and guiding accuracy of guide posts and guide sleeves, and reduce operating noise, lubricating oil should be added to the contact surfaces of guide posts and guide sleeves. Currently, lubricating oil between guide posts and guide sleeves is generally added manually. However, in some high-temperature or dusty and impurity environments, lubricating oil may evaporate or deteriorate more quickly. This requires operators to manually add lubricating oil every few hours, which is tedious and labor-intensive. Therefore, improvements are needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an automatically lubricated guide post and guide sleeve to solve the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an automatically lubricated guide post and guide sleeve, including a guide sleeve and a guide post, wherein the guide sleeve is provided with an inner cavity for accommodating and adapting the guide post, and an annular groove is provided in the curved surface of the inner cavity, and further includes a lubrication mechanism for supplying oil to the annular groove;

[0006] The inner cavity is also equipped with a buffer plate, which is connected to the bottom surface of the inner cavity by a spring.

[0007] Preferably, the lubrication mechanism includes an oil reservoir sleeve disposed on the outer curved surface of the guide sleeve, the oil reservoir sleeve having an oil reservoir cavity, and the oil reservoir cavity being connected to the annular groove via an oil injection assembly.

[0008] Preferably, the oil storage sleeve is provided with an oil injection hole, and a filter screen is provided inside the oil injection hole.

[0009] Preferably, the oil injection assembly includes a pump chamber disposed within the guide sleeve, a piston slidably connected to the pump chamber, an inlet communicating with the oil storage chamber and an outlet communicating with the annular groove, and a one-way valve being provided in each of the inlet and the outlet;

[0010] A piston rod extending into the inner cavity is connected to the piston, and a pressure plate is installed at the end of the piston rod. The pressure plate is connected to the bottom surface of the inner cavity by a second spring. The inner cavity opens downwards, and the pressure plate is located on the upper side of the buffer plate.

[0011] Preferably, the guide post is provided with a threaded groove, and a screw is threadedly connected to the threaded groove. The upper end of the screw is equipped with a top plate for pressing the buffer plate, and the guide post also includes a positioning mechanism for the top plate for controlling the angle of the screw.

[0012] Preferably, the positioning mechanism includes a countersunk hole located on the side of the top plate, and a bolt screwed into the guide post is installed in the countersunk hole, and two bolts are provided that are symmetrically distributed on the left and right sides.

[0013] Preferably, an oiling ring is provided inside the annular groove.

[0014] Preferably, a sponge ring is provided on the inner curved surface of the oiling ring, and the inner diameter of the sponge ring is smaller than the inner diameter of the inner cavity.

[0015] This utility model provides an automatically lubricated guide post and guide sleeve, which has the following beneficial effects:

[0016] The guide post in this invention can pump a fixed amount of oil from the oil storage sleeve into the annular groove each time it enters the guide sleeve, and then act on the guide post, thus achieving automatic lubrication. This reduces the frequency of maintenance required by workers for the guide post and guide sleeve, and improves their service life.

[0017] Workers can adjust the amount of oil pumped each time by adjusting the relative position between the top plate and the guide column, thus avoiding waste and increasing the adjustment range. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 2 This is an enlarged view of point A in the diagram. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Reference Figures 1-2 According to an embodiment of the present invention, an automatically lubricated guide post and guide sleeve includes a guide sleeve 11 and a guide post 12. The guide sleeve 11 has an inner cavity 13 for accommodating and adapting the guide post 12. The inner cavity 13 has an annular groove 14 in its curved surface. The device also includes a lubrication mechanism for supplying oil to the annular groove 14. The lubricating oil injected into the annular groove 14 through the lubrication mechanism will be applied to the guide post 12 and lubricate the guide post 12 to reduce wear between the guide post 12 and the wall of the inner cavity 13.

[0025] In addition, a buffer plate 16 is provided in the inner cavity 13. The buffer plate 16 is connected to the bottom surface of the inner cavity 13 by a spring. The buffer plate 16 is used to relieve the force on the guide post 12, specifically by reducing the mold closing speed, relieving the impact force, and reducing unnecessary wear on the mold.

[0026] In this embodiment, the lubrication mechanism includes an oil storage sleeve 17 disposed on the outer curved surface of the guide sleeve 11, and an oil storage cavity is provided inside the oil storage sleeve 17. The oil storage cavity is connected to the annular groove 14 through an oil injection assembly.

[0027] In order to ensure that the oil in the oil storage sleeve 17 can be replenished after it is depleted, the oil storage sleeve 17 is provided with an oil filling hole 18, and the oil filling hole 18 is provided with a filter screen, and also includes a plug for sealing the oil filling hole.

[0028] The oil injection assembly includes a pump chamber 21 disposed within the guide sleeve 11. A piston 22 is slidably connected to the pump chamber 21. The pump chamber 21 is provided with an inlet communicating with the oil storage chamber and an outlet communicating with the annular groove 14. A one-way valve is provided in each of the inlet and the outlet.

[0029] A piston rod extending into the inner cavity 13 is connected to the piston 22, and a pressure plate 23 is installed at the end of the piston rod extending into the inner cavity 13. The pressure plate 23 is connected to the bottom surface of the inner cavity 13 by a second spring. The inner cavity 13 opens downwards, and the pressure plate 23 is located above the buffer plate 16. With this arrangement, when the mold is closed, the guide post 12 will first press against the buffer plate 16, and then the buffer plate 16 will press against the pressure plate 23. The pressure plate 23 and the piston 22 are pressed together. When pushed upward, the lubricating oil in the pump chamber 21 is pressed into the annular groove 14 through the outlet. When the guide post 12 leaves the inner cavity 13, the buffer plate 16 and the pressure plate 23 will return downward under the action of the first spring and the second spring. At this time, the oil in the oil storage sleeve 17 will be drawn and replenished into the pump chamber 21. The one-way valve is used to prevent backflow. This process is repeated so that each rise and fall of the guide post 12 in the inner cavity 13 can perform a lubrication operation.

[0030] In a second embodiment of the self-lubricating guide post and guide sleeve, in order to make the depth of the guide post 12 pressing against the pressure plate 23 adjustable so as to adjust the amount of lubricating oil pumped out of the pump chamber 21 each time, the guide post 12 is provided with a threaded groove, and a screw is threadedly connected in the threaded groove. The upper end of the screw is equipped with a top plate 24 for pressing the buffer plate 16, and a positioning mechanism for the top plate for controlling the angle of the screw is also included.

[0031] The positioning mechanism includes a countersunk hole located on the upper side of the top plate 24, and a bolt screwed into the guide post 12 is installed in the countersunk hole. Two bolts are symmetrically distributed on the left and right sides. The operator can rotate the top plate 24 to adjust the height of the top plate 24 relative to the guide post 12. After the height of the top plate 24 is adjusted, the operator can screw in the bolts and lock the current relative position of the guide post 12 and the top plate 24. The height of the top plate 24 relative to the guide post 12 affects the displacement of the pressure plate 23 and the piston 22 each time the mold is closed, that is, it affects the pumping volume of oil each time.

[0032] In a third embodiment of the self-lubricating guide post and guide sleeve, an oiling ring 15 is provided in the annular groove 14 to ensure uniform oil application.

[0033] In addition, a sponge ring is provided on the inner curved surface of the oiling ring 15. The inner diameter of the sponge ring is smaller than the inner diameter of the inner cavity 13, so that the sponge ring can contact the curved surface of the guide post 12.

[0034] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An automatically lubricated guide post and guide sleeve, comprising a guide sleeve (11) and a guide post (12), characterized in that: The guide sleeve (11) has an inner cavity (13) for accommodating and adapting the guide post (12), and the inner cavity (13) has an annular groove (14) in its curved surface. It also includes a lubrication mechanism for supplying oil to the annular groove (14). The inner cavity (13) is also provided with a buffer plate (16), which is connected to the bottom surface of the inner cavity (13) by a spring. The lubrication mechanism includes an oil storage sleeve (17) disposed on the outer curved surface of the guide sleeve (11), and an oil storage cavity is provided inside the oil storage sleeve (17). The oil storage cavity is connected to the annular groove (14) through an oil injection assembly. The oil injection assembly includes a pump chamber (21) located in the guide sleeve (11), a piston (22) is slidably connected in the pump chamber (21), the pump chamber (21) is provided with an inlet communicating with the oil storage chamber and an outlet communicating with the annular groove (14), and a one-way valve is provided in the inlet and the outlet respectively; The piston (22) is connected to a piston rod extending into the inner cavity (13), and the end of the piston rod is fitted with a pressure plate (23). The pressure plate (23) is connected to the bottom surface of the inner cavity (13) by a second spring. The inner cavity (13) opens downwards, and the pressure plate (23) is located on the upper side of the buffer plate (16).

2. The self-lubricating guide post and guide sleeve according to claim 1, characterized in that: The oil storage sleeve (17) is provided with an oil injection hole (18), and a filter screen is provided in the oil injection hole (18).

3. The self-lubricating guide post and guide sleeve according to claim 1, characterized in that: The guide post (12) is provided with a threaded groove, and a screw is threadedly connected in the threaded groove. The upper end of the screw is equipped with a top plate (24) for pressing the buffer plate (16), and also includes a positioning mechanism for the top plate for controlling the angle of the screw.

4. The self-lubricating guide post and guide sleeve according to claim 3, characterized in that: The positioning mechanism includes a countersunk hole located on the upper side of the top plate (24), and the countersunk hole is fitted with a bolt screwed into the guide post (12), and the bolt has two bolts symmetrically distributed on the left and right.

5. The self-lubricating guide post and guide sleeve according to claim 1, characterized in that: An oiling ring (15) is provided inside the annular groove (14).

6. The self-lubricating guide post and guide sleeve according to claim 5, characterized in that: A sponge ring is provided on the inner curved surface of the oiling ring (15), and the inner diameter of the sponge ring is smaller than the inner diameter of the inner cavity (13).

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