Core setting device for static pressure line pipe fitting

Abstract

The utility model belongs to the technical field of sand core setting devices, and particularly relates to a core setting device for static pressure line pipe fittings, which comprises a sand core, a sliding plate and a lifting structure connected with the sliding plate. The driving mechanism is connected with the clamping mechanism, a piston rod of an air cylinder stretches out to drive the moving plate and the first connecting plate to move, the first connecting plate drives the first limiting plate and the clamping plates to move along the sliding plate, the clamping plates located at the two ends of the sliding plate are close to the sand core and abut against the sand core, and therefore the clamping action of the sand core is achieved, and core setting of the sand core is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of core lowering devices for sand cores. Specifically, this utility model relates to a core lowering device for static pressure line fittings. Background Technology

[0002] In the modern foundry industry, the production efficiency and quality of hydrostatic line fittings have a significant impact on a company's competitiveness. The core-setting process, as a crucial step in fitting casting, directly affects the yield rate of castings due to its level of automation and operational precision. Currently, because the sand cores for DN300 and above fittings are relatively heavy, the sand cores are prone to damaging the mold cavity during the core-setting process, leading to scrap products such as iron leakage and accumulation, affecting production and fitting qualification rates. Therefore, it is necessary to design a core-setting mechanism suitable for heavy sand cores.

[0003] Chinese Patent (Publication No.: 206502522U) discloses a core-lifting tool for small casting sand cores, comprising lifting rods 1, rotating shafts 2, and lifting shafts 3. There are four lifting rods 1 and two lifting shafts 3. Each pair of lifting rods 1 is hinged to both ends of a lifting shaft 3, forming two lifting rod groups. The four lifting rods 1 of each of the two groups are alternately stacked. The arc-shaped openings of the lifting rod clamping parts 10 on each pair of groups face each other, and the hinge points of corresponding adjacent lifting rods 1 in each pair of groups coincide, hinged to both ends of the rotating shaft 2. This core-lifting tool for small casting sand cores is not suitable for lifting heavy sand cores. Utility Model Content

[0004] This utility model is designed to solve the above-mentioned problems and aims to provide a core-lowering device for static pressure line fittings, which is suitable for lowering heavy sand cores. To achieve the above objective, the technical solution adopted by this utility model is as follows: a core-lowering device for static pressure line fittings, including a sand core, including a sliding plate and a lifting structure connected to the sliding plate, wherein the sliding plate is provided with a clamping mechanism and a driving mechanism, and the driving mechanism is connected to the clamping mechanism.

[0005] The clamping mechanism includes a clamping plate disposed at both ends of the slide plate. A first limiting plate is disposed on both sides of the clamping plate. The first limiting plate is located on both sides of the slide plate and is connected to the drive mechanism. A first fixing plate is disposed on the clamping plate and abuts against both ends of the sand core.

[0006] The driving mechanism includes a cylinder, the piston rod of the cylinder is connected to a moving plate, and the two ends of the moving plate are connected to a first connecting plate by rotating shafts. The first connecting plate is connected to a first limiting plate.

[0007] The first limiting plate is connected to a first roller and a second roller on its rotating shaft. The first roller is in contact with the upper surface of the slide plate, and the second roller is in contact with the lower surface of the slide plate.

[0008] The skateboard is provided with a second limiting plate, and the second limiting plate is provided with a reinforcing column.

[0009] The lifting structure includes a second connecting plate and a servo electric cylinder. The second connecting plate is disposed at both ends of the sliding plate. The second connecting plate is connected to a protective frame. The protective frame is connected to a connecting rope, and the connecting rope is connected to the servo electric cylinder.

[0010] The protective frame includes a first connecting rod, the second connecting plate is connected to the first connecting rod at both ends, one end of the first connecting rod is connected to a second connecting rod, and one side of the first connecting rod is connected to a third connecting rod.

[0011] A second fixing plate is provided between the piston rod of the cylinder and the moving plate. The second fixing plate is connected to the piston rod of the cylinder. A third fixing plate is connected to both ends of the second fixing plate. The third fixing plate is connected to the moving plate.

[0012] The movable plate has a triangular structure, and the second limiting plate has an L-shaped structure.

[0013] The skateboard is equipped with a reinforcing plate, and the cylinder is located inside the reinforcing plate.

[0014] The technical advantages of this invention are as follows: When clamping is required, the piston rod of the cylinder extends, causing the moving plate to move upward. This upward movement of the moving plate causes one end of the first connecting plate to rotate around the pivot. The end of the first connecting plate then drives the first limiting plate and the clamping plate to move along the slide plate. The first and second rollers can roll along the slide plate, making the clamping action of the clamping plate smoother. Simultaneously, the arrangement of the first and second rollers reduces friction when the clamping plate moves along the slide plate, extending the service life of the clamping plate and the slide plate. The clamping plates located at both ends of the slide plate are close to and abut against the sand core, thereby achieving the clamping action of the sand core and thus enabling the lowering of the sand core. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following:

[0016] Figure 1 This is an overall structural diagram of a core-lowering device for static pressure conduit fittings according to this utility model;

[0017] Figure 2 This utility model relates to a core-lowering device for static pressure conduit fittings. Figure 1 Enlarged view of point A in the middle.

[0018] The markings in the diagram are as follows: 1. Slide plate; 101. Second limiting plate; 102. Reinforcing column; 2. Lifting structure; 201. Second connecting plate; 202. Connecting rope; 3. Clamping mechanism; 301. Clamping plate; 302. First limiting plate; 303. First fixing plate; 4. Drive mechanism; 401. Cylinder; 402. Moving plate; 403. First connecting plate; 5. First roller; 6. Second roller; 7. Protective frame; 701. First connecting rod; 702. Second connecting rod; 703. Third connecting rod; 8. Second fixing plate; 801. Third fixing plate; 9. Reinforcing plate. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0020] like Figures 1-2 As shown, a core-lowering device for static pressure conduit fittings includes a sand core, a sliding plate 1, and a lifting structure 2 connected to the sliding plate 1. The sliding plate 1 is equipped with a clamping mechanism 3 and a driving mechanism 4, with the driving mechanism 4 connected to the clamping mechanism 3. The sliding plate 1 allows the driving mechanism 4 to drive the clamping mechanism 3 to move on the sliding plate 1, thereby clamping the sand core. The lifting structure 2 transports the clamped sand core.

[0021] The clamping mechanism 3 includes a clamping plate 301, which is disposed at both ends of the slide plate 1. First limiting plates 302 are disposed on both sides of the clamping plate 301, and are connected to the drive mechanism 4. A first fixing plate 303 is disposed on the clamping plate 301, and abuts against both ends of the sand core. The drive mechanism 4 pulls the first limiting plate 302, causing the clamping plates 301 at both ends of the slide plate 1 to move on the slide plate 1. As the clamping plates 301 at both ends of the slide plate 1 approach each other, the first fixing plates 303 are positioned within the openings at both ends of the sand core, abutting against the sand core. The clamping plates 301 firmly abut against both sides of the sand core. Through the cooperation of the clamping plates 301 and the first fixing plates 303, the sand core can be firmly fixed.

[0022] The drive mechanism 4 includes a cylinder 401. The piston rod of the cylinder 401 is connected to a movable plate 402. The two ends of the movable plate 402 are connected to a first connecting plate 403 via rotating shafts. The first connecting plate 403 is connected to a first limiting plate 302. When the piston rod of the cylinder 401 extends or retracts, it drives the movable plate 402 to move. The movement of the movable plate 402 drives the clamping action of the first connecting plate 403, the first limiting plate 302, and the clamping plate 301. When clamping is required, the piston rod of the cylinder 401 extends, driving the movable plate 402 to move upward. The upward movement of the movable plate 402 causes one end of the first connecting plate 403 to rotate around the rotating shaft. The end of the first connecting plate 403 drives the first limiting plate 302 and the clamping plate 301 to move along the slide plate 1. The clamping plates 301 located at both ends of the slide plate 1 approach the sand core and abut against the sand core, thereby realizing the clamping action of the sand core and thus realizing the lowering of the sand core.

[0023] When the sand core does not need to be clamped, the piston rod of cylinder 401 retracts, and the clamping plates 301 located at both ends of slide plate 1 release the sand core, realizing the core lowering action.

[0024] The first limiting plate 302 is pivotally connected to a first roller 5 and a second roller 6. The first roller 5 contacts the upper surface of the slide plate 1, and the second roller 6 contacts the lower surface of the slide plate 1. When the moving plate 402 moves upward, one end of the first connecting plate 403 rotates around the pivot. When the end of the first connecting plate 403 drives the first limiting plate 302 and the clamping plate 301 to move along the slide plate 1, the first roller 5 and the second roller 6 can roll along the slide plate 1, making the clamping action of the clamping plate 301 smoother. At the same time, the arrangement of the first roller 5 and the second roller 6 can reduce the friction of the clamping plate 301 along the slide plate 1, extending the service life of the clamping plate 301 and the slide plate 1.

[0025] The slide plate 1 is provided with a second limiting plate 101, and the second limiting plate 101 is provided with a reinforcing post 102. When the clamping plate 301 approaches the sand core and abuts against the sand core to achieve the clamping action of the sand core, the first limiting plate 302 will abut against the second limiting plate 101, which can prevent the clamping plate 301 from over-clamping the sand core and damaging it. The reinforcing post 102 strengthens the structural strength of the second limiting plate 101, so that the second limiting plate 101 will not be damaged when it abuts against the first limiting plate 302 multiple times.

[0026] The lifting structure 2 includes a second connecting plate 201 and a servo cylinder. The second connecting plate 201 is located at both ends of the slide plate 1. A protective frame 7 is connected to the second connecting plate 201, and a connecting rope 202 is connected to the protective frame 7. The connecting rope 202 is connected to the servo cylinder. The servo cylinder controls the lifting via a PLC. The protective frame 7 is connected to the second connecting plate 201, and the second connecting plate 201 is connected to the slide plate 1. The servo cylinder pulls the protective frame 7 via the connecting rope 202, thereby driving the slide plate 1 and the clamped sand core to move, thus realizing the core lowering operation.

[0027] The protective frame 7 includes a first connecting rod 701, with two ends of a second connecting plate 201 connected to the first connecting rod 701. One end of the first connecting rod 701 is connected to a second connecting rod 702, and one side of the first connecting rod 701 is connected to a third connecting rod 703. The first connecting rod 701 and the second connecting rod 702 connect to form a protective frame that protects the sides of the slide plate and prevents accidental injury to the operator. The two ends of the third connecting rod 703 connect to the first connecting rod 701 located at both ends of the slide plate 1, which strengthens the structural strength of the protective frame. The first connecting rod 701, the second connecting rod 702, and the third connecting rod 703 protect the entire device from impacts and other damage.

[0028] A second fixing plate 8 is provided between the piston rod of cylinder 401 and the moving plate 402. The second fixing plate 8 is connected to the piston rod of cylinder 401, and third fixing plates 801 are connected to both ends of the second fixing plate 8. The third fixing plates 801 are connected to the moving plate 402. The second fixing plate 8 is a square plate, and the third fixing plate 801 is bolted to the moving plate 402. The second fixing plate 8 and the third fixing plate 801 connect the cylinder and the moving plate 402, enhancing the connection strength between the piston rod of cylinder 401 and the moving plate 402, making the force transmission more stable and reliable.

[0029] The movable plate 402 has a triangular structure, and the second limiting plate 101 has an L-shaped structure. The triangular structure of the movable plate 402 allows the force to be evenly distributed along its sides. When the piston rod of the cylinder 401 pushes the movable plate 402, the force can be evenly transmitted to the first connecting plate 403 connected to the rotating shaft of the movable plate 402, which drives the clamping plates 301 located at both ends of the slide plate 1 to approach the sand core, which is beneficial for achieving uniform clamping of the sand core. The L-shaped structure of the second limiting plate 101 allows one end of the second limiting plate 101 to be better fixed to the slide plate 1, and one side of the second limiting plate 101 to better abut against the first limiting plate 302.

[0030] A reinforcing plate 9 is provided on the slide plate 1, and the cylinder 401 is located inside the reinforcing plate 9. The reinforcing plate 9 is connected to the slide plate 1 and the cylinder 401, which enhances the connection strength between the cylinder 401 and the slide plate 1 and ensures the stability of the cylinder 1 during operation.

[0031] The role and effect of the embodiments

[0032] When clamping is required, the piston rod of cylinder 401 extends, causing the moving plate 402 to move upward. This upward movement of the moving plate 402 causes one end of the first connecting plate 403 to rotate around the pivot. The end of the first connecting plate 403 drives the first limiting plate 302 and the clamping plate 301 to move along the slide plate 1. The first roller 5 and the second roller 6 can roll along the slide plate 1, making the clamping action of the clamping plate 301 smoother. Simultaneously, the placement of the first roller 5 and the second roller 6 reduces friction of the clamping plate 301 along the slide plate 1, extending the service life of the clamping plate 301 and the slide plate 1. The clamping plates 301 located at both ends of the slide plate 1 are close to and abut against the sand core, thereby achieving the clamping action of the sand core and thus enabling the lowering of the sand core.

[0033] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A core-lowering device for static pressure conduit fittings, comprising a sand core, characterized in that, It includes a slide plate (1) and a lifting structure (2) connected to the slide plate (1). The slide plate (1) is provided with a clamping mechanism (3) and a driving mechanism (4). The driving mechanism (4) is connected to the clamping mechanism (3).

2. The core-lowering device for static pressure line fittings according to claim 1, characterized in that: The clamping mechanism (3) includes a clamping plate (301), which is disposed at both ends of the slide plate (1). A first limiting plate (302) is provided on both sides of the clamping plate (301). The first limiting plate (302) is located on both sides of the slide plate (1) and is connected to the driving mechanism (4). A first fixing plate (303) is provided on the clamping plate (301) and abuts against both ends of the sand core.

3. The core-lowering device for static pressure conduit according to claim 2, characterized in that: The drive mechanism (4) includes a cylinder (401), the piston rod of the cylinder (401) is connected to a moving plate (402), the two ends of the moving plate (402) are connected to a first connecting plate (403), and the first connecting plate (403) is connected to a first limiting plate (302).

4. The core-lowering device for static pressure line fittings according to claim 2, characterized in that: The first limiting plate (302) is connected to a first roller (5) and a second roller (6) on its rotating shaft. The first roller (5) is in contact with the upper surface of the slide plate (1), and the second roller (6) is in contact with the lower surface of the slide plate (1).

5. The core-lowering device for static pressure line fittings according to claim 3, characterized in that: The skateboard (1) is provided with a second limiting plate (101), and the second limiting plate (101) is provided with a reinforcing column (102).

6. The core-lowering device for static pressure line fittings according to claim 1, characterized in that: The lifting structure (2) includes a second connecting plate (201) and a servo electric cylinder. The second connecting plate (201) is set at both ends of the slide plate (1). The second connecting plate (201) is connected to a protective frame (7). The protective frame (7) is connected to a connecting rope (202). The connecting rope (202) is connected to the servo electric cylinder.

7. The core-lowering device for static pressure line fittings according to claim 6, characterized in that: The protective frame (7) includes a first connecting rod (701), the two ends of the second connecting plate (201) are connected to the first connecting rod (701), one end of the first connecting rod (701) is connected to a second connecting rod (702), and one side of the first connecting rod (701) is connected to a third connecting rod (703).

8. The core-lowering device for static pressure conduit according to claim 3, characterized in that: A second fixing plate (8) is provided between the piston rod of the cylinder (401) and the moving plate (402). The second fixing plate (8) is connected to the piston rod of the cylinder (401). The two ends of the second fixing plate (8) are connected to a third fixing plate (801). The third fixing plate (801) is connected to the moving plate (402).

9. The core-lowering device for static pressure line fittings according to claim 5, characterized in that: The movable plate (402) has a triangular structure, and the second limiting plate (101) has an L-shaped structure.

10. The core-lowering device for static pressure line fittings according to claim 3, characterized in that: The slide plate (1) is provided with a reinforcing plate (9), and the cylinder (401) is located inside the reinforcing plate (9).

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