Medical mold self-lubricating guide mechanism

Abstract

This utility model belongs to the field of mold guiding technology, specifically a self-lubricating guiding mechanism for medical molds. It includes a fixed mold base and a moving mold base, and further includes: four guide pillars fixedly connected to the top of the fixed mold base, with guide sleeves covering the guide pillars and fixedly connected to the moving mold base; an oil storage cavity and a receiving cavity are formed inside the guide pillars, and the oil storage cavity and the receiving cavity are connected by a connecting groove; a plug block movably disposed within the receiving cavity, with an oil outlet groove on the outer wall of the guide pillar that cooperates with the plug block; and a ball bearing movably connected to one end of the plug block, protruding from the outer wall of the guide pillar. The inner wall of the guide sleeve has contact grooves at both the upper and lower ends. This utility model enables the lubricating oil in the oil storage cavity to automatically flow to the guiding friction surface, achieving continuous self-lubrication and reducing manual intervention. Simultaneously, with the help of a movable sealing mechanism, the oil circuit is sealed to prevent leakage in the non-working state, and the lubricating oil is automatically released in the working state, achieving automatic supply.

Description

Technical Field

[0001] This utility model belongs to the field of mold guiding technology, and more specifically, it relates to a self-lubricating guiding mechanism for medical molds. Background Technology

[0002] Medical molds refer to molds used for the production of medical devices or parts. As a key core component of medical molds, the guiding mechanism ensures the precise alignment of the cavity and the core during the opening and closing of the mold through the cooperation of the guide post and guide sleeve between the moving mold base and the fixed mold base. Currently, the guiding mechanism of existing medical molds requires manual lubrication by operators to reduce friction and wear between the guide pillars and guide sleeves. However, manual lubrication is difficult to match the actual usage rhythm. Delayed lubrication or insufficient oil can easily lead to the guiding mechanism being in a state of dry friction or poor lubrication, which will accelerate the surface wear of the guide pillars and guide sleeves, reduce guiding accuracy, and may also affect the smooth operation of the mold due to increased friction. It may even cause an increase in the frequency of downtime maintenance, affecting the efficiency of medical device production and increasing the production cost of enterprises.

[0003] To address the aforementioned issues, this application proposes a self-lubricating guide mechanism for medical molds. Utility Model Content

[0004] The purpose of this invention is to provide a self-lubricating guide mechanism for medical molds, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a self-lubricating guide mechanism for medical molds, comprising a fixed mold base and a moving mold base, and further comprising: Four guide pillars are fixedly connected to the top of the fixed mold base, and guide sleeves are provided on the outer sleeves of the guide pillars. The guide sleeves are fixedly connected to the moving mold base. Oil storage cavities and receiving cavities are opened inside the guide pillars, and the oil storage cavities and receiving cavities are connected by a connecting groove. The block is movably disposed within the receiving cavity, and the outer wall of the guide column is provided with an oil outlet groove that mates with the block; A ball bearing is movably connected to one end of the block. The ball bearing protrudes from the outer wall of the guide post. The upper and lower ends of the inner wall of the guide sleeve are provided with abutment grooves.

[0006] Furthermore, the inner wall of the guide sleeve is provided with a ball channel for connecting to the contact groove, and the inner wall of the guide sleeve is also provided with two annular grooves that communicate with the ball channel.

[0007] Furthermore, both the block and the oil outlet groove have a stepped structure.

[0008] Furthermore, a stop block is fixed at the end of the block away from the ball, and the stop block is fixedly connected to the slider through a smooth rod passing through one end of the fixed cylinder. The slider is slidably disposed inside the fixed cylinder, and a spring is provided inside the fixed cylinder, with the two ends of the spring fixedly connected to the slider and the fixed cylinder respectively.

[0009] Furthermore, the fixing cylinder is disposed in the communicating groove, and the outer wall of the fixing cylinder is fixedly connected to the guide column by multiple fixing blocks.

[0010] Furthermore, the outer diameter of the stop block is the same as the diameter of the connecting groove.

[0011] Furthermore, the oil storage cavity is connected to the oil delivery pipe that penetrates the side wall of the guide column, and the oil delivery pipe is connected to the oil storage tank.

[0012] Furthermore, an oil inlet pipe is installed on the side wall of the oil storage tank, and the top of the oil inlet pipe is connected to an oil filling hopper, which is equipped with a sealing cap.

[0013] This utility model has the following beneficial effects: This utility model, through the interconnected design of the oil storage chamber, the connecting groove, the receiving chamber and the oil outlet groove, allows the lubricating oil in the lubricating oil storage chamber to flow through the oil outlet groove to the contact surface of the guide column and the guide sleeve, thereby achieving continuous and automatic lubrication of the guiding mechanism and reducing manual intervention. In the non-working state, the block seals the oil outlet groove to prevent lubricating oil leakage. In the working state, the guide sleeve squeezes the ball, causing the lubricating oil in the receiving cavity to be released through the oil outlet groove to the contact interface between the guide post and the guide sleeve, thereby realizing the automatic supply of lubricating oil.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a cross-sectional view of the oil storage tank of this utility model; Figure 3 This is a schematic cross-sectional view of the guide column structure of this utility model; Figure 4 This is a partial structural schematic diagram of the present invention; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Fixed mold base; 2. Moving mold base; 3. Guide pillar; 301. Oil storage cavity; 3011. Connecting groove; 302. Receiving cavity; 3021. Oil outlet groove; 4. Guide sleeve; 401. Contact groove; 402. Annular groove; 403. Ball channel; 5. Block; 6. Ball; 7. Stop block; 701. Smooth rod; 8. Slider; 9. Fixed cylinder; 901. Fixed block; 10. Spring; 11. Oil storage tank; 1101. Oil delivery pipe; 1102. Oil inlet pipe; 1103. Oil injection hopper. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Please see Figure 1 - Figure 4 As shown, this utility model is a self-lubricating guide mechanism for medical molds, including a fixed mold base 1 and a moving mold base 2, and further including: four guide pillars 3, which are fixedly connected to the top of the fixed mold base 1, and the guide pillars 3 are covered with guide sleeves 4, which are fixedly connected to the moving mold base 2. The guide pillars 3 have an oil storage cavity 301 and a receiving cavity 302, and the oil storage cavity 301 and the receiving cavity 302 are connected by a connecting groove 3011; a plug 5, which is movably disposed in the receiving cavity 302, and the outer wall of the guide pillars 3 has an oil outlet groove 3021 that cooperates with the plug 5; a ball 6, which is movably connected to one end of the plug 5, and the ball 6 protrudes from the outer wall of the guide pillars 3. The inner wall of the guide sleeve 4 has abutment grooves 401 at both the upper and lower ends. This embodiment provides a self-lubricating guide mechanism for medical molds. The guide sleeve 4 is slidably connected to the guide post 3, which guides the lifting and lowering of the moving mold base 2. The oil storage cavity 301 is used to store lubricating oil. The lubricating oil enters the receiving cavity 302 through the connecting groove 3011. When the guide sleeve 4 moves, it passes through the ball 6. After the ball 6 contacts the contact groove 401, it is squeezed and drives the block 5 to move into the guide post 3. Then the oil outlet groove 3021 is connected to the outside. The lubricating oil in the receiving cavity 302 overflows from the contact interface between the guide post 3 and the guide sleeve 4 through the oil outlet groove 3021, thus achieving self-lubrication.

[0020] The inner wall of the guide sleeve 4 is provided with a ball channel 403 for connecting the contact groove 401, and the inner wall of the guide sleeve 4 is also provided with two annular grooves 402 that communicate with the ball channel 403, so that the lubricating oil can be evenly distributed through the annular grooves 402.

[0021] Both the plug 5 and the oil outlet groove 3021 have stepped structures. The annular outer wall of the plug 5 fits against the annular surface of the oil outlet groove 3021 to form a seal. The outer wall of the plug 5 can be equipped with a rubber ring that is interference-fitted with the oil outlet groove 3021 to improve the sealing effect.

[0022] In this design, a stop block 7 is fixedly provided at the end of the block 5 away from the ball 6, and the stop block 7 is fixedly connected to the slider 8 through a smooth rod 701 passing through one end of the fixed cylinder 9. The slider 8 is slidably disposed inside the fixed cylinder 9, and a spring 10 is provided inside the fixed cylinder 9. The two ends of the spring 10 are fixedly connected to the slider 8 and the fixed cylinder 9 respectively. When the guide sleeve 4 squeezes the ball 6, the ball 6 causes the block 5 to move into the guide post 3, and further drives the slider 8 to move through the stop block 7 and the smooth rod 701, thereby compressing the spring 10. After the guide sleeve 4 separates from the ball 6, the spring 10 returns to its original position, causing the block 5 to form a seal with the oil outlet groove 3021.

[0023] The fixing cylinder 9 is installed in the connecting groove 3011, and the outer wall of the fixing cylinder 9 is fixedly connected to the guide post 3 by multiple fixing blocks 901.

[0024] The outer diameter of the stop block 7 is the same as the diameter of the connecting groove 3011. During the process of the stop block 5 moving into the guide post 3, the annular sidewall of the stop block 7 will fit against the connecting groove 3011 and block the connecting groove 3011. This keeps the connecting groove 3011 closed when the lubricating oil is discharged through the oil outlet groove 3021, preventing excessive lubricating oil from flowing out.

[0025] The oil storage chamber 301 is connected to the oil delivery pipe 1101 that penetrates the side wall of the guide column 3. The oil delivery pipe 1101 is connected to the oil storage tank 11. After the lubricating oil in the oil storage chamber 301 is consumed, the lubricating oil in the oil storage tank 11 enters the oil storage chamber 301 through the oil delivery pipe 1101 to realize automatic replenishment of lubricating oil.

[0026] The oil storage tank 11 has an oil inlet pipe 1102 installed on its side wall, and the top of the oil inlet pipe 1102 is connected to an oil filling hopper 1103. The oil filling hopper 1103 is equipped with a sealing cover. The staff will open the sealing cover regularly and inject the lubricating oil into the oil filling hopper 1103 to replenish the lubricating oil in the oil storage tank 11.

[0027] A top plate is fixed at the top of the guide column 3, and a drive device (which can be a cylinder or an electric push rod) for driving the moving mold base 2 to rise and fall is fixed above the top plate. The oil tank 11 is fixed to the top plate, and the oil inlet pipe 1102 is connected to the top plate through a clamp. The oil tank 11 can be set on the side of the drive shaft of the drive device, or it can be provided with a clearance groove for the drive shaft to pass through. A fixing ring is provided on the outer wall of the guide column 3, located below the oil delivery pipe 1101, to prevent the moving mold base 2 from rising excessively and colliding with the oil delivery pipe 1101.

[0028] It is understood that this utility model enables the lubricating oil in the oil storage chamber 301 to automatically flow to the guide friction surface, achieving continuous self-lubrication and reducing manual intervention; at the same time, with the help of the movable sealing mechanism, the oil circuit is sealed to prevent leakage in the non-working state, and the lubricating oil is automatically released in the working state to achieve automatic supply.

[0029] A specific application of the operation flow of this embodiment is as follows: Initial state: The guide sleeve 4 is located at the upper end of the guide post 3, the block 5 is embedded in the oil groove 3021 under the elastic force of the spring 10, and the stop block 7 is in the receiving cavity 302; Working state: The moving mold base 2 moves vertically under the action of the driving device. The contact groove 401 contacts and squeezes the ball 6, pushing the block 5 into the guide post 3, which in turn drives the stop block 7, the smooth rod 701 and the slider 8 to move horizontally and compress the spring 10. At this time, the stepped surface of the block 5 is separated from the oil outlet groove 3021, and the receiving cavity 302 is connected to the outside through the oil outlet groove 3021. The stop block 7 and the connecting groove 3011 are fitted together to form a seal. The lubricating oil overflows from the receiving cavity 302 through the oil outlet groove 3021 to the contact interface between the guide post 3 and the guide sleeve 4, and is evenly distributed through the annular groove 402. Automatic sealing: After the guide sleeve 4 separates from the ball 6, the spring 10 returns to its original position, pushing the slider 8, smooth rod 701 and stop 7 to move in the opposite direction. The block 5 re-embeds into the oil groove 3021, restoring the seal on the connecting groove 3011 and stopping the release of lubricating oil. The stop 7 disengages from the connecting groove 3011, and the lubricating oil is transferred into the receiving cavity 302 under the action of gravity. The air in the receiving cavity 302 is discharged to the liquid surface above the oil storage cavity 301 through the connecting groove 3011.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A self-lubricating guiding mechanism for medical molds, comprising a fixed mold base (1) and a moving mold base (2), characterized in that, Also includes: Four guide pillars (3) are fixedly connected to the top of the fixed mold base (1), and guide sleeves (4) are provided on the outer sleeves of the guide pillars (3). The guide sleeves (4) are fixedly connected to the moving mold base (2). An oil storage cavity (301) and a receiving cavity (302) are provided in the guide pillars (3), and the oil storage cavity (301) and the receiving cavity (302) are connected by a connecting groove (3011). The block (5) is movably disposed in the receiving cavity (302), and the outer wall of the guide column (3) is provided with an oil outlet groove (3021) that cooperates with the block (5). The ball (6) is movably connected to one end of the block (5). The ball (6) protrudes from the outer wall of the guide post (3). The upper and lower ends of the inner wall of the guide sleeve (4) are provided with abutment grooves (401).

2. The medical mold self-lubricating guide mechanism according to claim 1, characterized in that: The inner wall of the guide sleeve (4) is provided with a ball channel (403) for connecting the contact groove (401), and the inner wall of the guide sleeve (4) is also provided with two annular grooves (402) that communicate with the ball channel (403).

3. The medical mold self-lubricating guide mechanism according to claim 1, characterized in that: Both the block (5) and the oil outlet groove (3021) are stepped structures.

4. The medical mold self-lubricating guide mechanism according to claim 1, characterized in that: The end of the block (5) away from the ball (6) is fixedly provided with a stop (7), and the stop (7) is fixedly connected to the slider (8) through a smooth rod (701) that passes through one end of the fixed cylinder (9). The slider (8) is slidably disposed in the fixed cylinder (9). The fixed cylinder (9) is provided with a spring (10), and the two ends of the spring (10) are fixedly connected to the slider (8) and the fixed cylinder (9) respectively.

5. The medical mold self-lubricating guide mechanism according to claim 4, characterized in that: The fixed cylinder (9) is set in the connecting groove (3011), and the outer wall of the fixed cylinder (9) is fixedly connected to the guide column (3) by multiple fixing blocks (901).

6. The medical mold self-lubricating guide mechanism according to claim 5, characterized in that: The outer diameter of the stop (7) is the same as the diameter of the connecting groove (3011).

7. The medical mold self-lubricating guide mechanism according to claim 1, characterized in that: The oil storage chamber (301) is connected to the oil delivery pipe (1101) that penetrates the side wall of the guide column (3), and the oil delivery pipe (1101) is connected to the oil storage tank (11).

8. The medical mold self-lubricating guide mechanism according to claim 7, characterized in that: The oil storage tank (11) is equipped with an oil inlet pipe (1102) on its side wall, and the top of the oil inlet pipe (1102) is connected to an oil filling hopper (1103), and the oil filling hopper (1103) is provided with a sealing cap.

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