Guide mechanism for die assembly

Abstract

The utility model discloses a guide mechanism for mold closing, and particularly relates to the technical field of molds, the guide mechanism comprises an upper mold base and a lower mold base, the top of the lower mold base is fixedly connected with a guide pillar, the outer surface of the guide pillar is sleeved with a first spring, the outer surface of the guide pillar is further movably connected with a ball sleeve, and the ball sleeve is located above the first spring. The ball sleeve and the guide column are provided with movable sealing rings, the outer side of the ball sleeve is fixedly connected with a lubricating oil box, the bottom of the upper die base is fixedly connected with an outer steel sleeve, the outer steel sleeve is movably connected with the ball sleeve, and the outer steel sleeve is provided with a sealing gasket movably connected with the lubricating oil box. A plurality of balls are connected to the ball sleeve in a ball rotating mode, the outer steel sleeve is movably connected with the balls on the ball sleeve, the movable sealing ring is fixedly connected to the inner side of the ball sleeve, and the movable sealing ring is connected to the guide column in a sliding mode. The die guide structure solves the technical problem that a die machining environment is easily polluted during guide lubrication of an existing die guide structure.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to a guide mechanism for mold closing. Background Technology

[0002] A mold is a tool used under external force to shape raw materials (solid or liquid) into parts with specific shapes and dimensions. Molds are widely used in forging, stamping, powder metallurgy pressing, pressure casting, and compression molding and injection molding of engineering plastics, rubber, ceramics, and other products. A mold generally consists of two parts: a moving mold and a stationary mold based on their motion; and a cavity mold and a punch mold based on their shape. Currently, molds require guiding mechanisms for directional movement and cushioning during mold closing to achieve precise and reliable mold closing.

[0003] For example, patent publication number CN218656455U discloses a mold guiding mechanism, including: a connecting sleeve, a guide post, a ball bearing sleeve installed on the guide post, multiple guide grooves on the guide post, multiple balls installed on the ball bearing sleeve, an oil injection cavity on the guide post, a sealing cap installed on the top of the guide post, oil injection balls in the guide grooves, a first spring sleeved on the guide post, and a pressure-applying mechanism below the first spring. This utility model provides a mold guiding mechanism that, by setting multiple vertically arranged guide grooves and balls adapted to the guide grooves, facilitates the axial positioning of the moving mold and the fixed mold during mold closing. By setting oil injection balls and a pressure-applying mechanism, the oil injection cavity can be pressurized, and the balls and ball bearing sleeve can be lubricated in real time. This allows condensed lubricating oil to smoothly lubricate the balls through the oil injection balls at low temperatures, thereby extending the service life of the guiding mechanism.

[0004] In the aforementioned patent, the inventor believes that although the patent automatically controls the lubricating oil to achieve ball lubrication through rolling, this method of oil supply easily causes the lubricating oil to drip, expanding the lubrication area and thus making the lubricating oil easily contaminate the mold processing environment.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the technical problem that existing mold guiding structures easily contaminate the mold processing environment during guiding lubrication.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mold closing guide mechanism, comprising an upper mold base and a lower mold base, a guide post fixedly connected to the top of the lower mold base, a spring sleeved on the outer surface of the guide post, a ball sleeve movably connected to the outer surface of the guide post, the ball sleeve being located above the spring, a dynamic sealing ring provided on the ball sleeve and the guide post, a lubricating oil box fixedly connected to the outer side of the ball sleeve, an outer steel sleeve fixedly connected to the bottom of the upper mold base, the outer steel sleeve being movably connected to the ball sleeve, and a sealing gasket movably connected to the lubricating oil box provided on the outer steel sleeve.

[0008] In a preferred embodiment, the ball sleeve is ball-rotated with a plurality of balls, the outer steel sleeve is movably connected to the balls on the ball sleeve, the dynamic sealing ring is fixedly connected to the inner side of the ball sleeve, and the dynamic sealing ring is slidably connected to the guide post.

[0009] In a preferred embodiment, the top of the lubricating oil box is open, and a plurality of oil-blocking rings are fixedly connected to the inner wall of the lubricating oil box.

[0010] In a preferred embodiment, the top of the guide post is threaded with a pressure cap.

[0011] In a preferred embodiment, the sealing gasket is slidably connected to the outer surface of the outer steel sleeve, the size of the sealing gasket is the same as the size of the lubricating oil box, a support ring is fixedly connected to the top of the sealing gasket, a second spring is sleeved on the outer surface of the outer steel sleeve, a limit ring is fixedly connected to the outer surface of the outer steel sleeve, and the second spring is located between the limit ring and the support ring.

[0012] In a preferred embodiment, the outer surface of the outer steel sleeve is threaded with a threaded ring, which is located at the bottom of the sealing gasket.

[0013] In a preferred embodiment, a breathable filter element is fixedly inserted through the sealing gasket and the support ring.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. The mold closing guide mechanism of this invention provides lubrication for the rolling friction balls by directly immersing the ball sleeve in the lubrication box containing lubricating oil on the outside of the ball sleeve. The dynamic sealing ring is used to seal the connection between the ball sleeve and the guide post, thereby improving the sealing performance of the bottom of the lubrication box.

[0016] 2. This mold closing guide mechanism, by setting a baffle ring inside the lubricating oil box, reduces the fluidity of the lubricating oil as the lubricating oil box moves with the ball sleeve, thus preventing the lubricating oil from overflowing outwards. In addition, since the outer steel sleeve needs to reciprocate and roll in contact with the ball sleeve, a sealing gasket with spring tension is set on the outer steel sleeve to act on the opening of the lubricating oil box. The sealing gasket effectively seals the opening of the lubricating oil box, thus preventing the risk of lubricating oil overflow and fulfilling the function of preventing foreign objects from entering the lubricating oil box. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a mold closing guide mechanism according to the present invention;

[0019] Figure 2 This is a schematic diagram of the guide post, ball sleeve, and lubricating oil box of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the lubricating oil box of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer steel sleeve and sealing gasket of this utility model.

[0022] The attached diagram is labeled as follows: 1. Upper mold base; 2. Lower mold base; 3. Guide post; 4. Spring 1; 5. Ball sleeve; 51. Ball; 6. Dynamic sealing ring; 7. Lubricating oil box; 71. Oil baffle ring; 8. Outer steel sleeve; 9. Sealing gasket; 10. Pressure cap; 11. Support ring; 12. Spring 2; 13. Limiting ring; 14. Vent filter element; 15. Threaded ring. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See also Figures 1-4This utility model provides a guide mechanism for mold closing, including an upper mold base 1 and a lower mold base 2. The upper mold base 1 and the lower mold base 2 are partially drawn in this application. The upper mold base 1 and the lower mold base 2 can provide mounting bodies for the mold, that is, the moving mold is installed at the bottom of the upper mold base 1 and the fixed mold is installed at the top of the lower mold base 2.

[0025] The top of the lower mold base 2 is fixedly connected to a guide post 3. A spring 4 is sleeved on the outer surface of the guide post 3. A ball sleeve 5 is also movably connected to the outer surface of the guide post 3. The ball sleeve 5 is located above the spring 4. Several balls 51 are spherically connected to the ball sleeve 5.

[0026] The ball sleeve 5 can roll and rub against the guide post 3 through the ball 51. In this way, the ball sleeve 5 can provide a low-friction guiding effect when the mold is closed. The spring 4 is set so that the ball sleeve 5 can compress the spring 4 when sliding down. The rebound force generated by the compression of the spring 4 can buffer the impact force of the mold closing, thus ensuring the reliability of the mold closing.

[0027] In this embodiment, the top of the guide post 3 is threadedly connected to a pressure cap 10.

[0028] The pressure cap 10 can be installed and removed from the top of the guide post 3 by means of a threaded connection. It can be used to limit the position of the ball sleeve 5 and directly meet the convenience of assembling the ball sleeve 5 on the guide post 3.

[0029] In this embodiment: a dynamic sealing ring 6 is provided on the ball sleeve 5 and the guide post 3. The dynamic sealing ring 6 is fixedly connected to the inner side of the ball sleeve 5 and slidably connected to the guide post 3.

[0030] Since the ball sleeve 5 will move on the guide post 3, the dynamic sealing ring 6 can increase the sealing at the connection between the ball sleeve 5 and the guide post 3. This makes it easy to seal the lubricating oil at the bottom of the ball sleeve 5 to prevent it from flowing out.

[0031] In this embodiment, a lubricating oil box 7 is fixedly connected to the outer side of the ball sleeve 5.

[0032] The lubricating oil box 7 can be filled with lubricating oil so that the ball sleeve 5 is immersed in the lubricating oil in the lubricating oil box 7. In this way, when the ball sleeve 5 uses the rolling friction between the ball 51 and the guide post 3, the lubricating oil can lubricate the ball 51 in real time, which can improve the durability of the ball sleeve 5.

[0033] In this embodiment, the top of the lubricating oil box 7 is open, and multiple oil baffle rings 71 are fixedly connected to the inner wall of the lubricating oil box 7.

[0034] Because the lubricating oil box 7 moves with the ball sleeve 5 as it rises and falls, and the oil baffle ring 71 is placed inside the lubricating oil box 7, it can reduce the fluidity of the lubricating oil and prevent the lubricating oil from overflowing outward as the lubricating oil box 7 moves.

[0035] In this embodiment: an outer steel sleeve 8 is fixedly connected to the bottom of the upper mold base 1, and the outer steel sleeve 8 is movably connected to the ball sleeve 5.

[0036] When the mold closes, the outer steel sleeve 8 can enter the lubricating oil box 7 and roll and connect with the balls 51 on the ball sleeve 5. In this way, the mold closing movement can have a guiding effect. And because of the setting of spring 4, the ball sleeve 5 can squeeze the spring 4 to easily buffer the impact force of mold closing.

[0037] In this embodiment: a sealing gasket 9 is provided on the outer steel sleeve 8 and is movably connected to the lubricating oil box 7. The sealing gasket 9 is slidably connected to the outer surface of the outer steel sleeve 8. The size of the sealing gasket 9 is the same as the size of the lubricating oil box 7. A support ring 11 is fixedly connected to the top of the sealing gasket 9. A second spring 12 is sleeved on the outer surface of the outer steel sleeve 8. A limit ring 13 is fixedly connected to the outer surface of the outer steel sleeve 8. The second spring 12 is located between the limit ring 13 and the support ring 11.

[0038] When the outer steel sleeve 8 contacts the ball sleeve 5, the outer steel sleeve 8 is continuously squeezed into the lubricating oil box 7, which allows the sealing gasket 9 to slide upward on the outer steel sleeve 8. Under the tension of the second spring 12, the sealing gasket 9 on the support ring 11 can be pressed tightly against the top of the lubricating oil box 7 in real time. In this way, when the lubricating oil box 7 moves with the ball sleeve 5, the sealing effect of the top of the lubricating oil box 7 can be guaranteed to prevent the lubricating oil from overflowing, while also satisfying the protection effect of preventing foreign objects from entering, such as dust protection.

[0039] It is worth noting that the lubricating oil box 7 is sealed by the sealing gasket 9 on the outer steel sleeve 8. When it is necessary to fill the lubricating oil box 7 with lubricating oil, the upper mold base 1 can be controlled to drive the outer steel sleeve 8 to rise to a certain height to open the lubricating oil box 7.

[0040] In this embodiment, the outer surface of the outer steel sleeve 8 is threaded with a threaded ring 15, which is located at the bottom of the sealing gasket 9.

[0041] The threaded ring 15 is located at the bottom of the sealing gasket 9 and can provide partial support for the sealing gasket 9, thus limiting the sealing position of the sealing gasket 9. Similarly, since the threaded ring 15 is threaded onto the outer steel sleeve 8, it can be easily disassembled and assembled, which facilitates the assembly of the sealing gasket 9, the support ring 11 and the second spring 12.

[0042] In this embodiment: a breathable filter element 14 is fixedly inserted through the sealing gasket 9 and the support ring 11.

[0043] The placement of the vent filter element 14 allows both the sealing gasket 9 and the support ring 11 to form vent holes. Multiple vent filter elements 14 are provided. While satisfying the need for ventilation, the vent filter element 14 also provides dust protection. On the one hand, it can ensure the stability of the internal pressure of the lubricating oil box 7 under the blocked state, and on the other hand, it can satisfy the need for dust protection of the lubricating oil box 7.

Claims

1. A mold closing guide mechanism, comprising an upper mold base (1) and a lower mold base (2), characterized in that: The top of the lower mold base (2) is fixedly connected to a guide post (3), and a spring (4) is sleeved on the outer surface of the guide post (3). A ball sleeve (5) is also movably connected to the outer surface of the guide post (3). The ball sleeve (5) is located above the spring (4). A dynamic sealing ring (6) is provided on the ball sleeve (5) and the guide post (3). A lubricating oil box (7) is fixedly connected to the outer side of the ball sleeve (5). An outer steel sleeve (8) is fixedly connected to the bottom of the upper mold base (1). The outer steel sleeve (8) is movably connected to the ball sleeve (5). A sealing gasket (9) is provided on the outer steel sleeve (8) and movably connected to the lubricating oil box (7).

2. The mold closing guide mechanism according to claim 1, characterized in that: The ball sleeve (5) has a plurality of balls (51) connected to it. The outer steel sleeve (8) is movably connected to the balls (51) on the ball sleeve (5). The dynamic sealing ring (6) is fixedly connected to the inner side of the ball sleeve (5). The dynamic sealing ring (6) is slidably connected to the guide post (3).

3. The mold closing guide mechanism according to claim 1, characterized in that: The top of the lubricating oil box (7) is open, and multiple oil baffle rings (71) are fixedly connected to the inner wall of the lubricating oil box (7).

4. The mold closing guide mechanism according to claim 1, characterized in that: The top of the guide post (3) is threaded with a pressure cap (10).

5. A mold closing guide mechanism according to claim 1, characterized in that: The sealing gasket (9) is slidably connected to the outer surface of the outer steel sleeve (8). The size of the sealing gasket (9) is the same as that of the lubricating oil box (7). A support ring (11) is fixedly connected to the top of the sealing gasket (9). A second spring (12) is sleeved on the outer surface of the outer steel sleeve (8). A limit ring (13) is fixedly connected to the outer surface of the outer steel sleeve (8). The second spring (12) is located between the limit ring (13) and the support ring (11).

6. A mold closing guide mechanism according to claim 5, characterized in that: The outer surface of the outer steel sleeve (8) is threaded with a threaded ring (15), which is located at the bottom of the sealing gasket (9).

7. A mold closing guide mechanism according to claim 5, characterized in that: A breathable filter element (14) is fixedly inserted through the sealing gasket (9) and the support ring (11).

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