Simple core taking and transferring hoist for cold core sand core

Abstract

The utility model relates to a transfer lifting appliance technical field, concretely relates to a simple and easy core taking transfer lifting appliance of cold sand core, including sand core body and core taking lifting appliance, the surface of sand core body is equipped with two groups of lifting hole, and the core taking lifting appliance includes suspender, connecting block, clamping plate, suspension axle, hanging plate, mounting groove and lifting ring, and the centre of connecting block and clamping plate is rotatably connected, and the both ends of clamping plate are fixedly connected with suspension axle, and the suspension axle is inserted and fixed in the inside of lifting hole, the suspension axle is inserted into the inside of lifting hole, then the suspender and hanging plate are lifted up, the sand core body can be lifted up with clamping plate and suspension axle, and then the sand core body is taken, the structure is simple, and the use convenience is higher, and then the equipment production efficiency is improved, meanwhile, the clamping plate can rotate around the connecting block, and then the core taking lifting appliance can be suitable for two groups of sand core bodies of symmetrical division, and the adaptability of core taking lifting appliance is improved.

Description

Technical Field

[0001] This utility model relates to the field of transfer and lifting equipment technology, specifically to a simple core extraction and transfer lifting equipment for cold core sand cores. Background Technology

[0002] Lifting devices are used in lifting machinery to lift heavy objects. The most commonly used lifting device for lifting packaged goods is the hook. Others include lifting rings, lifting suction cups, clamps, and forks. Lifting suction cups, clamps, and forks can be used as dedicated lifting devices on cranes for extended periods, or they can be used temporarily as replaceable auxiliary lifting devices attached to the hook. They are commonly used in multi-cargo warehouses and storage yards to improve operational efficiency. Lifting devices for grabbing bulk materials are generally grabs with openable and closable jaws. Electromagnetic chucks can also be used to pick up magnetic materials such as metal shavings. Lifting devices for lifting fluid materials commonly include drums and tanks. Molten steel or chemical solutions are generally discharged by tilting or removing the bottom plug, while fluid materials such as concrete are discharged by opening the bottom door of the tank.

[0003] In the process of core making of the main sand core of the gear chamber of a large-bore engine, the sand core is too large to fit in the cold core machine. Therefore, the core is often made by splitting it in half and vertically shooting sand for cold core making. After the core making is completed, the prepared sand core needs to be removed and transported. The existing sand cores are mostly removed manually by V-belt, which is slow and easily damages the sand core, thus affecting the production rhythm and efficiency of the equipment.

[0004] Therefore, it is necessary to invent a simple core extraction and transfer device for cold core sand to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a simple core extraction and transfer device for cold cores, in order to solve the problem that existing technologies mostly use V-belt manual core extraction, which is slow and easily damages the cores, thus affecting the production rhythm and efficiency of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a simple core extraction and transfer lifting device for cold core sand, comprising a core body and a core extraction lifting device. The surface of the core body is provided with two sets of lifting holes. The core extraction lifting device includes a lifting rod, a connecting block, a clamping plate, a lifting shaft, a lifting plate, a mounting groove, and a lifting ring. The connecting block is rotatably connected to the center of the clamping plate. Both ends of the clamping plate are fixedly connected to the lifting shaft, which is inserted and fixed inside the lifting hole.

[0007] By adopting the above technical solution, two sets of lifting holes are pre-set on the surface of the sand core body. During the core extraction process, the lifting shaft is directly inserted into the lifting hole. At this time, by lifting the lifting rod and lifting plate upward, the sand core body can be lifted in conjunction with the clamp and lifting shaft, and then the sand core body can be extracted and placed in the sand core storage rack. The structure is relatively simple and the use is convenient.

[0008] Optionally, the lower end of the boom is fixedly connected to the upper end of the connecting block, the hanging plate is fixedly connected to the upper end of the boom, the mounting groove is opened on the upper surface of the hanging plate, and the lifting ring is fixedly installed inside the mounting groove.

[0009] By adopting the above technical solution, the lifting ring can slide inside the installation groove, which makes it easy to adjust the center of gravity of the core lifting tool according to the weight of the sand core body, so that the sand core body is kept vertical when it is taken out, improving the safety of material extraction and avoiding damage to the sand core body.

[0010] Optionally, a connecting shaft is connected to the side of the clamping plate, a connecting hole is provided at the center of the connecting block, a copper sleeve is fixedly connected inside the connecting hole, and the connecting shaft is rotatably connected to the copper sleeve.

[0011] By adopting the above technical solution, the connecting shaft and the copper sleeve cooperate, allowing the connecting block to rotate around the clamping plate and adjust the angle of the clamping plate.

[0012] Optionally, a mounting plate is fixedly connected to the center of the clamping plate, a positioning groove is provided on the front surface of the mounting plate, and a positioning piece is fixedly connected to the rear end of the connecting shaft, the positioning piece being engaged inside the positioning groove.

[0013] By adopting the above technical solution, the positioning piece is stuck inside the positioning groove, thus limiting the position of the connecting shaft.

[0014] Optionally, a locking sleeve is snapped onto the front end of the connecting shaft, and a handle is fixedly connected to the front end of the locking sleeve.

[0015] By adopting the above technical solution, the locking sleeve is used to lock and position the front end of the connecting block to prevent the connecting block from slipping.

[0016] Optionally, the connecting block has a positioning hole inside, a ball is provided at the rear end of the positioning hole, a support spring is provided inside the positioning hole, a locking plug is fixedly connected to the front end of the positioning hole, and the two ends of the support spring abut against the surfaces of the locking plug and the ball, respectively.

[0017] By adopting the above technical solution, the support spring is used to push the ball backward, while the ball can compress the support spring and retract it into the positioning hole.

[0018] Optionally, the surface of the mounting plate is provided with two sets of symmetrical limiting grooves, and the ball bearings are engaged inside the limiting grooves.

[0019] By adopting the above technical solution, the ball bearings can be locked inside the limiting groove to limit the angle of the clamping plate, thereby improving the stability during use, without affecting the adjustment of the clamping plate angle.

[0020] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model has two sets of lifting holes pre-set on the surface of the sand core body. During the core extraction process, the lifting shaft is directly inserted into the lifting hole. At this time, by lifting the lifting rod and lifting plate upward, the sand core body can be lifted in conjunction with the clamp and lifting shaft, thereby extracting the sand core body and placing it in the sand core storage rack. The structure is relatively simple, the use is convenient, and the practicality is high, thereby improving the production efficiency of the equipment. 2. This utility model uses a copper sleeve and a connecting shaft to allow the clamping plate to rotate around the connecting block, thereby enabling the core-taking lifting tool to be used with two symmetrically divided sand core bodies, improving the adaptability of the core-taking lifting tool. At the same time, the support spring and locking screw plug work together to push the ball bearings backward, locking the ball bearings inside the limiting groove, limiting the angle of the clamping plate, improving the stability of the clamping plate during equipment use, facilitating the quick and accurate insertion of the lifting shaft into the lifting hole, and improving material handling efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the sand core body structure of this utility model; Figure 3 This is a schematic diagram of the core extraction lifting device of this utility model; Figure 4 This is a schematic diagram of the hanging plate structure of this utility model; Figure 5 This is a schematic diagram of the connecting block structure of this utility model; Figure 6 This is a schematic diagram of the clamping plate structure of this utility model.

[0022] Explanation of reference numerals in the attached figures: 1. Core body; 11. Lifting hole; 2. Core lifting tool; 21. Lifting rod; 22. Connecting block; 221. Connecting hole; 222. Copper sleeve; 223. Positioning hole; 224. Ball bearing; 225. Support spring; 226. Locking plug; 23. Clamping plate; 231. Mounting plate; 232. Positioning groove; 233. First screw; 234. Connecting shaft; 235. Positioning piece; 236. Locking sleeve; 237. Handle; 238. Second screw; 239. Limiting groove; 24. Lifting shaft; 25. Lifting plate; 26. Mounting groove; 27. Lifting ring. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figures 1 to 3 The diagram shows a simple core extraction and transfer lifting device for cold cores, comprising a core body 1 and a core extraction lifting device 2. The surface of the core body 1 has two sets of lifting holes 11. The core extraction lifting device 2 includes a lifting rod 21, a connecting block 22, a clamping plate 23, a lifting shaft 24, a lifting plate 25, an installation groove 26, and a lifting ring 27. The connecting block 22 is rotatably connected to the center of the clamping plate 23. Both ends of the clamping plate 23 are fixedly connected to the lifting shaft 24, which is inserted and fixed inside the lifting hole 11. The lower end of the lifting rod 21 is fixedly connected to the upper end of the connecting block 22. The lifting plate 25 is fixedly connected to the upper end of the lifting rod 21. The installation groove 26 is opened on the upper surface of the lifting plate 25, and the lifting ring 27 is fixedly installed inside the installation groove 26.

[0025] The lifting hole 11 and the sand core body 1 are integrally formed. During use, the clamping plate 23 is rotated to a specified angle, and then the lifting shaft 24 is inserted into the lifting hole 11. At this time, the clamping plate 23, the lifting shaft 24 and the sand core body 1 can be lifted directly by the cooperation of the lifting ring 27, the lifting plate 25, the lifting rod 21 and the connecting block 22, so that the sand core body 1 can be taken out of the equipment and placed on the storage rack.

[0026] See Figures 3 to 6 A connecting shaft 234 is connected to the side of the clamping plate 23. A connecting hole 221 is opened at the center of the connecting block 22. A copper sleeve 222 is fixedly connected inside the connecting hole 221. The connecting shaft 234 is rotatably connected to the copper sleeve 222. An mounting plate 231 is fixedly connected at the center of the clamping plate 23. A positioning groove 232 is opened on the front surface of the mounting plate 231. A positioning piece 235 is fixedly connected to the rear end of the connecting shaft 234. The positioning piece 235 is stuck inside the positioning groove 232. A locking sleeve 236 is snapped into the front end of the connecting shaft 234. A handle 237 is fixedly connected to the front end of the locking sleeve 236.

[0027] In addition, the connecting shaft 234 is fixed to the front side of the mounting plate 231 by the first screw 233. Then, the connecting block 22 is fitted onto the surface of the connecting shaft 234 with the internal copper sleeve 222. At this time, the connecting block 22 can rotate around the connecting shaft 234, thereby adjusting the angle of the clamping plate 23, which is convenient for the application of two sets of symmetrically divided sand core bodies 1.

[0028] Meanwhile, after the connecting block 22 is fitted onto the surface of the connecting shaft 234, the locking sleeve 236 is fitted onto the front end of the connecting shaft 234 and locked in place by the second screw 238, thereby limiting the front end of the connecting block 22 and preventing the connecting block 22 from falling off.

[0029] See Figure 5 and Figure 6The connecting block 22 has a positioning hole 223 inside. A ball bearing 224 is provided at the rear end of the positioning hole 223. A support spring 225 is provided inside the positioning hole 223. A locking plug 226 is fixedly connected to the front end of the positioning hole 223. The two ends of the support spring 225 abut against the surfaces of the locking plug 226 and the ball bearing 224, respectively. The surface of the mounting plate 231 has two sets of symmetrical limiting grooves 239. The ball bearing 224 is engaged inside the limiting groove 239.

[0030] Specifically, during the adjustment of the angle of the clamping plate 23, simply rotate the clamping plate 23 vigorously. During the rotation, the ball bearing 224 will be squeezed into the positioning hole 223, thereby adjusting the angle of the clamping plate 23 and improving the convenience of the angle adjustment. At the same time, during the rotation of the clamping plate 23, the support spring 225 will engage the ball bearing 224 into another set of limiting grooves 239. At this time, the angle of the clamping plate 23 is adjusted. Meanwhile, the support spring 225 and the ball bearing 224 cooperate to limit the position of the clamping plate 23. Under natural conditions, the clamping plate 23 is prevented from rotating, so that the two sets of lifting shafts 24 can be accurately and quickly engaged into the lifting hole 11, thereby improving the material picking speed of the sand core body 1.

[0031] The working principle of this utility model is as follows: Two sets of lifting holes 11 are pre-set on the surface of the sand core body 1. During the core extraction process, the lifting shaft 24 is directly inserted into the lifting hole 11. At this time, by lifting the lifting rod 21 and the lifting plate 25 upward, the sand core body 1 can be lifted with the help of the clamping plate 23 and the lifting shaft 24, thereby extracting the sand core body 1 and placing it in the sand core storage rack. The structure is relatively simple, the use is convenient, and it has high practicality. At the same time, the copper sleeve 222 cooperates with the connecting shaft 234, so that the clamping plate 23 can rotate around the connecting block 22, thereby making the core extraction lifting tool 2 applicable to two symmetrically divided sand core bodies 1, improving the adaptability of the core extraction lifting tool 2. Meanwhile, the support spring 225 and the locking screw 226 cooperate to push the ball 224 backward, locking the ball 224 inside the limiting groove 239, limiting the angle of the clamping plate 23, improving the stability of the clamping plate 23 during equipment use, and facilitating the quick and accurate insertion of the lifting shaft 24 into the lifting hole 11, thereby improving the material extraction efficiency.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A simple core extraction and transfer device for cold core sand, comprising a core body (1) and a core extraction device (2), characterized in that: The surface of the core body (1) is provided with two sets of lifting holes (11). The core extraction lifting tool (2) includes a lifting rod (21), a connecting block (22), a clamping plate (23), a lifting shaft (24), a lifting plate (25), a mounting groove (26), and a lifting ring (27). The connecting block (22) is rotatably connected to the center of the clamping plate (23). Both ends of the clamping plate (23) are fixedly connected to the lifting shaft (24), and the lifting shaft (24) is inserted and fixed inside the lifting hole (11).

2. The simplified core extraction and transfer device for cold cores according to claim 1, characterized in that: The lower end of the rod (21) is fixedly connected to the upper end of the connecting block (22), the hanging plate (25) is fixedly connected to the upper end of the rod (21), the mounting groove (26) is opened on the upper surface of the hanging plate (25), and the lifting ring (27) is fixedly installed inside the mounting groove (26).

3. The simplified core extraction and transfer device for cold cores according to claim 1, characterized in that: The side of the clamp (23) is connected to a connecting shaft (234), and a connecting hole (221) is provided at the center of the connecting block (22). A copper sleeve (222) is fixedly connected inside the connecting hole (221), and the connecting shaft (234) is rotatably connected to the copper sleeve (222).

4. The simplified core extraction and transfer device for cold cores according to claim 3, characterized in that: A mounting plate (231) is fixedly connected to the center of the clamp (23). A positioning groove (232) is provided on the front surface of the mounting plate (231). A positioning piece (235) is fixedly connected to the rear end of the connecting shaft (234). The positioning piece (235) is stuck inside the positioning groove (232).

5. A simplified core extraction and transfer lifting device for cold cores according to claim 3, characterized in that: The front end of the connecting shaft (234) is engaged with a locking sleeve (236), and the front end of the locking sleeve (236) is fixedly connected with a handle (237).

6. A simplified core extraction and transfer lifting device for cold cores according to claim 4, characterized in that: The connecting block (22) has a positioning hole (223) inside. A ball (224) is provided at the rear end of the positioning hole (223). A support spring (225) is provided inside the positioning hole (223). A locking plug (226) is fixedly connected to the front end of the positioning hole (223). The two ends of the support spring (225) abut against the surfaces of the locking plug (226) and the ball (224) respectively.

7. A simplified core extraction and transfer lifting device for cold cores according to claim 6, characterized in that: The surface of the mounting plate (231) is provided with two sets of symmetrical limiting grooves (239), and the ball (224) is engaged inside the limiting groove (239).

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