A high efficiency forming mold apparatus for floating oil seal centrifugal casting

Abstract

The utility model relates to floating oil seal technical field, and disclose a kind of high-efficiency forming die device for floating oil seal centrifugal casting, including base, the base top front and rear symmetry fixedly connected with support column, four the support column top fixedly connected with fixed seat, the base top is provided with rotary centrifugal mechanism, the left and right sides of the base top are provided with taking and placing mechanism, the rotary centrifugal mechanism includes box, the box is fixedly connected in base bottom, the box inner wall bottom is rotatably connected with the shaft. In rotary centrifugal mechanism, servo motor is driven the rotation of shaft by worm and worm wheel engagement, transmission precision is high, power is stable, can accurately control mould rotating speed, satisfy the process requirement of floating oil seal centrifugal casting, the cooperation of fixed plate and rotating ring further enhances the stability when the rotation of shaft, reduces the influence of shaking on casting forming, improves casting efficiency and finished product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of floating oil seal technology, specifically to a high-efficiency molding die device for centrifugal casting of floating oil seals. Background Technology

[0002] Floating oil seals are critical sealing components in equipment such as construction machinery and mining machinery. Their sealing performance and structural integrity directly affect the operational stability and service life of the equipment. Because floating oil seals often operate in environments with dust, mud, and high-frequency vibration, the requirements for their material density, surface flatness, and molding precision are extremely high. Therefore, the industry commonly uses centrifugal casting technology for production. This process uses centrifugal force to evenly distribute the molten material, reducing defects such as porosity and shrinkage in the casting and improving product quality.

[0003] However, existing mold devices for centrifugal casting of floating oil seals still have many technical drawbacks. Firstly, in terms of power transmission, most devices use ordinary motors in conjunction with belt or gear transmission to drive the mold rotation. The transmission accuracy is low and the stability is poor. The material distribution is uneven due to speed fluctuations, which in turn affects the sealing performance of the oil seal. At the same time, the mold rotation shaft lacks an effective radial limiting structure, which is prone to shaking when rotating at high speed. This not only reduces the casting accuracy but may also shorten the service life of the device. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency molding die device for centrifugal casting of floating oil seals, 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 high-efficiency molding mold device for centrifugal casting of floating oil seals, comprising a base, with support columns symmetrically fixedly connected to the top of the base in the front, back, left and right directions, and fixed seats fixedly connected to the top of the four support columns, a rotating centrifugal mechanism provided on the top of the base, and pick-up and put-down mechanisms provided on the left and right sides of the top of the base. The rotary centrifuge mechanism includes a housing, which is fixedly connected to the bottom of a base. A rotating shaft is rotatably connected to the bottom of the inner wall of the housing. A fixed plate is fixedly connected to the inner wall of the housing near the bottom. An annular groove is formed in the fixed plate, and a rotating ring is rotatably connected in the annular groove. A fixed disk is fixedly connected to the top of the rotating shaft. A mold is fixedly connected to the bottom of the fixed disk. A servo motor is fixedly connected to the front of the housing. A worm gear is fixedly connected to the output end of the servo motor. A worm wheel is fixedly connected to the surface of the rotating shaft.

[0006] Preferably, both the top of the fixing plate and the top of the box are provided with holes that match the rotating shaft, and the surface of the rotating shaft passes through and is rotatably connected to the hole.

[0007] Preferably, the inner wall of the rotating ring is rotatably connected to the surface of the rotating shaft, and the worm gear meshes with the worm wheel.

[0008] Preferably, the picking and placing mechanism includes hydraulic cylinders, which are symmetrically and fixedly connected to the top of the base. The output ends of the two hydraulic cylinders are fixedly connected to lifting plates. The top of the lifting plates are symmetrically and fixedly connected to sliding columns. The tops of the two sliding columns are fixedly connected to connecting plates. A fixing ring is fixedly connected to one side of the two connecting plates. A material conveying hopper is fixedly connected to the inner wall of the fixing ring.

[0009] Preferably, the top left and right sides of the fixed base are provided with grooves that match the sliding column, and the surface of the sliding column is connected to the grooves through and slides up and down.

[0010] Preferably, the top of the fixed base has a hole, and the diameter of the hopper is larger than the diameter of the hole.

[0011] Preferably, the top of the lifting plate has a hole, and the conveying pipe of the conveying hopper is inside the hole.

[0012] Compared with the prior art, this utility model provides a high-efficiency molding die device for centrifugal casting of floating oil seals, which has the following beneficial effects: 1. This high-efficiency forming mold device for centrifugal casting of floating oil seals features a rotating centrifugal mechanism in which a servo motor drives the rotating shaft through the meshing of a worm gear and a worm wheel. This mechanism offers high transmission precision and stable power, allowing for accurate control of the mold speed to meet the process requirements of centrifugal casting of floating oil seals. Furthermore, the cooperation between the fixed plate and the rotating ring further enhances the stability of the rotating shaft during rotation, reducing the impact of shaking on the forming of the casting and improving casting efficiency and the yield of finished products.

[0013] 2. This high-efficiency molding die device for centrifugal casting of floating oil seals uses a hydraulic cylinder to drive the lifting plate to move up and down, which in turn drives the sliding column and connecting plate to adjust the lifting of the feeding hopper. The sliding cooperation between the sliding column and the fixed seat ensures a smooth lifting process. The feeding hopper can accurately connect to the die, facilitating material transportation. The hole design of the lifting plate and the fixed seat prevents the feeding pipe from shifting, simplifies the feeding process, reduces the difficulty of manual operation, and improves production convenience. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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. Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2This is a three-dimensional schematic diagram of the structural box and mold of this utility model; Figure 3 This is a three-dimensional view of the front and left side of the structural box of this utility model; Figure 4 This is a three-dimensional schematic diagram of the annular groove and rotating ring of this utility model; Figure 5 This is a three-dimensional schematic diagram of the picking and placing mechanism of this utility model; Figure 6 This is a three-dimensional schematic diagram of the fixing ring and conveying hopper of this utility model.

[0015] In the diagram: 1. Base; 2. Support column; 3. Fixed seat; 4. Rotary centrifugal mechanism; 41. Box body; 42. Rotating shaft; 43. Fixed plate; 44. Annular groove; 45. Rotating ring; 46. Fixed plate; 47. Mold; 48. Servo motor; 49. Worm gear; 411. Worm wheel; 5. Picking and placing mechanism; 51. Hydraulic cylinder; 52. Lifting plate; 53. Sliding column; 54. Connecting plate; 55. Fixed ring; 56. Conveying hopper. Detailed Implementation

[0016] 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.

[0017] 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] This utility model provides the following technical solution: Example 1 Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency molding die device for centrifugal casting of floating oil seals, including a base 1, with support columns 2 symmetrically fixedly connected to the top of the base 1 in the front, back, left and right directions, and fixed seats 3 fixedly connected to the top of the four support columns 2, a rotating centrifugal mechanism 4 set on the top of the base 1, and a pick-and-place mechanism 5 set on the left and right sides of the top of the base 1. The rotary centrifuge mechanism 4 includes a housing 41, which is fixedly connected to the bottom of the base 1. A rotating shaft 42 is rotatably connected to the bottom of the inner wall of the housing 41. A fixed plate 43 is fixedly connected to the inner wall of the housing 41 near the bottom. An annular groove 44 is opened in the fixed plate 43. A rotating ring 45 is rotatably connected in the annular groove 44. A fixed disk 46 is fixedly connected to the top of the rotating shaft 42. A mold 47 is fixedly connected to the bottom of the fixed disk 46. A servo motor 48 is fixedly connected to the front of the housing 41. A worm gear 49 is fixedly connected to the output end of the servo motor 48. A worm wheel 411 is fixedly connected to the surface of the rotating shaft 42.

[0019] Both the top of the fixing plate 43 and the top of the box 41 are provided with holes that match the rotating shaft 42, and the surface of the rotating shaft 42 is penetrated and rotatably connected to the hole.

[0020] The inner wall of the rotating ring 45 is rotatably connected to the surface of the rotating shaft 42, and the worm 49 meshes with the worm wheel 411.

[0021] Example 2 Please see Figure 5-6 Furthermore, based on Embodiment 1, the pick-and-place mechanism 5 is obtained.

[0022] The picking and placing mechanism 5 includes hydraulic cylinders 51, which are symmetrically and fixedly connected to the top of the base 1. The output ends of the two hydraulic cylinders 51 are fixedly connected to lifting plates 52. The top of the lifting plates 52 are symmetrically and fixedly connected to sliding columns 53. The top of the two sliding columns 53 are fixedly connected to connecting plates 54. The two connecting plates 54 are fixedly connected to one side of the two connecting plates 54. The inner wall of the fixing ring 55 is fixedly connected to a conveying hopper 56.

[0023] The top left and right sides of the fixed base 3 are provided with grooves that match the sliding column 53, and the surface of the sliding column 53 is penetrated and slidably connected to the groove.

[0024] The top of the fixed base 3 has a hole, and the diameter of the hopper 56 is larger than the diameter of the hole.

[0025] The top of the lifting plate 52 has a hole, and the conveying pipe of the conveying hopper 56 is inside the hole.

[0026] In actual operation, when this device is in use, the device forms a stable support frame through the base 1 and the support column 2. The fixed seat 3 provides the installation and guiding foundation for the picking and placing mechanism 5. In the initial state, the hydraulic cylinder 51 of the picking and placing mechanism 5 is in the retracted state, which drives the lifting plate 52, the sliding column 53 and the connecting plate 54 to move down, so that the conveying hopper 56 passes through the hole at the top of the fixed seat 3 and its bottom approaches the mold 47 of the rotary centrifugal mechanism 4, completing the alignment preparation before feeding. At the same time, the mold 47 of the rotary centrifugal mechanism 4 is fixed to the top of the rotating shaft 42 by the fixed plate 46 and is in the ready-to-work state. The servo motor 48 of the rotary centrifugal mechanism 4 is started, and the output end of the motor drives the worm 49 to rotate. Because the worm 49 meshes with the worm wheel 411 on the surface of the rotating shaft 42, the power is converted into the rotational motion of the rotating shaft 42. The rotating shaft 42 passes through the matching hole at the top of the fixed plate 43 and the box 41, and the rotating ring 45 in the annular groove 44 of the fixed plate 43 rotates and engages with the surface of the rotating shaft 42. The radial sway of the rotating shaft 42 is limited to ensure stable rotation. The rotating shaft 42 drives the fixed plate 46 at the top to rotate synchronously with the mold 47. After reaching the speed required for centrifugal casting, molten raw material is injected into the mold 47 through the feeding hopper 56. Under the action of centrifugal force, the raw material is evenly distributed in the cavity of the mold 47 to complete the molding process. If it is necessary to adjust the position of the feeding hopper 56, the hydraulic cylinder 51 is controlled to extend or retract: when the hydraulic cylinder 51 extends, it pushes the lifting plate 52 to move upward, and the sliding column 53 slides synchronously along the matching groove of the fixed seat 3, driving the connecting plate 54 and the fixed ring 55 to move upward, thereby lifting the feeding hopper 56. When the hydraulic cylinder 51 retracts, the feeding hopper 56 moves downward. During this process, the hole at the top of the lifting plate 52 provides clearance space for the feeding pipe of the feeding hopper 56, and the diameter of the feeding hopper 56 is larger than the diameter of the hole at the top of the fixed seat 3, which can avoid excessive downward movement of the feeding hopper 56 and structural interference, ensuring the safety and stability of the adjustment operation and meeting the material conveying needs of different casting stages.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high-efficiency molding die device for centrifugal casting of floating oil seals, comprising a base (1), characterized in that: The base (1) has symmetrical support columns (2) fixedly connected to the top of the base (1), and fixed seats (3) are fixedly connected to the top of the four support columns (2). The base (1) is equipped with a rotating centrifugal mechanism (4), and the base (1) is equipped with a pick-and-place mechanism (5) on the left and right sides of the top. The rotating centrifugal mechanism (4) includes a housing (41), which is fixedly connected to the bottom of the base (1). A rotating shaft (42) is rotatably connected to the bottom of the inner wall of the housing (41). A fixed plate (43) is fixedly connected to the inner wall of the housing (41) near the bottom. An annular groove (44) is provided in the fixed plate (43). A rotating ring (45) is rotatably connected in the annular groove (44). A fixed disk (46) is fixedly connected to the top of the rotating shaft (42). A mold (47) is fixedly connected to the bottom of the fixed disk (46). A servo motor (48) is fixedly connected to the front of the housing (41). A worm gear (49) is fixedly connected to the output end of the servo motor (48). A worm wheel (411) is fixedly connected to the surface of the rotating shaft (42).

2. The high-efficiency molding die device for centrifugal casting of floating oil seals according to claim 1, characterized in that: The top of the fixing plate (43) and the top of the box (41) are both provided with holes that match the rotating shaft (42), and the surface of the rotating shaft (42) is penetrated and rotatably connected to the hole.

3. The high-efficiency molding die device for centrifugal casting of floating oil seals according to claim 1, characterized in that: The inner wall of the rotating ring (45) is rotatably connected to the surface of the rotating shaft (42), and the worm (49) meshes with the worm wheel (411).

4. The high-efficiency molding die device for centrifugal casting of floating oil seals according to claim 1, characterized in that: The picking and placing mechanism (5) includes hydraulic cylinders (51), which are symmetrically fixedly connected to the top of the base (1). The output ends of the two hydraulic cylinders (51) are fixedly connected to lifting plates (52). The top of the lifting plates (52) are symmetrically fixedly connected to sliding columns (53). The top of the two sliding columns (53) are fixedly connected to connecting plates (54). The two connecting plates (54) are fixedly connected to one side of a fixing ring (55). The inner wall of the fixing ring (55) is fixedly connected to a conveying hopper (56).

5. The high-efficiency molding die device for centrifugal casting of floating oil seals according to claim 4, characterized in that: The top left and right sides of the fixed base (3) are provided with grooves that match the sliding column (53), and the surface of the sliding column (53) is connected to the grooves by sliding up and down.

6. The high-efficiency forming mold device for centrifugal casting of floating oil seals according to claim 4, characterized in that: The top of the fixed seat (3) has a hole, and the diameter of the hopper (56) is larger than the diameter of the hole.

7. The high-efficiency molding die device for centrifugal casting of floating oil seals according to claim 4, characterized in that: The top of the lifting plate (52) has a hole, and the conveying pipe of the conveying hopper (56) is inside the hole.

Images