Dumbbell casting ejection device

Abstract

The utility model relates to the technical field of dumbbell casting, especially to a dumbbell casting demolding device, which can accelerate the uniform cooling of the mold and the dumbbell casting by using cold water and air cooling in combination, improve work efficiency, conveniently take out the dumbbell casting from the mold, and avoid surface scratching of the dumbbell casting, comprising a conveying mechanism, further comprising a detection mechanism, a cooling mechanism, two sets of fixing mechanisms, a driving mechanism and a demolding mechanism, the detection mechanism is installed on the conveying mechanism and detects the position of the dumbbell, the cooling mechanism is installed on the detection mechanism and accelerates the cooling of the dumbbell, the two sets of fixing mechanisms are both installed on the detection mechanism and fix the mold, the driving mechanism is installed on the fixing mechanism and drives the rotation of the two sets of fixing mechanisms, and the demolding mechanism is installed on the detection mechanism and takes out the dumbbell.

Description

Technical Field

[0001] This utility model relates to the technical field of dumbbell castings, and in particular to a dumbbell casting demolding device. Background Technology

[0002] Dumbbells, as a simple and effective fitness exercise tool, have gained increasing popularity among consumers. In recent years, with the rise of the fitness trend, people's demand for fitness equipment has increased year by year, and the dumbbell market has ushered in rapid growth.

[0003] Existing dumbbell castings, such as the powder metallurgy dumbbell pressing mold disclosed in utility model patent application number 202422368215.0, mainly include an upper mold component, a middle mold plate, a lower mold component, an upper mold ejection drive component, a lower mold ejection drive component, a dumbbell head mold core, a feeder, an operating table, and a receiving plate. In use, after the pressed dumbbell product is separated from the upper mold forming plate, the middle mold plate moves downwards independently. At this time, the lower punch of the dumbbell head and the lower punch of the dumbbell rod remain stationary. When the middle mold plate moves to the limit position, the dumbbell product is completely separated from the middle mold plate.

[0004] However, dumbbells are prone to sticking to the mold after molding. Most existing demolding devices use a knocking demolding method, which can easily cause scratches, deformation, or even damage to the mold due to uneven force, affecting product quality and mold life. Moreover, the demolded dumbbells are at a high temperature, making them inconvenient to pick up manually and requiring a long time to cool naturally, resulting in low work efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a dumbbell casting demolding device that not only uses a combination of cold water and air cooling to accelerate the uniform cooling of the mold and dumbbell casting, thus improving work efficiency, but also facilitates the removal of the dumbbell casting from the mold and avoids surface scratches on the dumbbell casting.

[0006] This utility model discloses a dumbbell casting demolding device, comprising a conveying mechanism; it also includes a detection mechanism, a cooling mechanism, two sets of fixing mechanisms, a driving mechanism, and a demolding mechanism. The detection mechanism is installed on the conveying mechanism to detect the position of the dumbbell; the cooling mechanism is installed on the detection mechanism to accelerate the cooling of the dumbbell; both sets of fixing mechanisms are installed on the detection mechanism to fix the mold; the driving mechanism is installed on the fixing mechanisms to drive the two sets of fixing mechanisms to rotate; and the demolding mechanism is installed on the detection mechanism to remove the dumbbell. After casting, the lower mold containing the dumbbell casting is conveyed into the conveying mechanism, which drives the mold forward. The cooling mechanism delivers cooling water into the conveying mechanism to accelerate the cooling of the mold and simultaneously atomizes the cooling water and sprays it onto the dumbbell to accelerate its cooling. The detection mechanism detects the position of the dumbbell and stops when it reaches the worker. The driving mechanism drives the two sets of fixing mechanisms to fix the mold. The demolding mechanism removes the dumbbell from the mold, and the conveying mechanism drives the mold and dumbbell to be discharged.

[0007] Preferably, the conveying mechanism includes a worktable, a water-cooled roller assembly, a conveyor belt, and an arc-shaped baffle. The bottom of the worktable is connected to the ground. The water-cooled roller assembly is rotatably mounted on the worktable. The conveyor belt is tensioned and mounted on the water-cooled roller assembly. The arc-shaped baffle is mounted on the worktable. After casting is completed, the lower mold with the dumbbell casting is conveyed to multiple sets of water-cooled roller assemblies. The multiple sets of water-cooled roller assemblies cool the mold while driving the mold forward. The arc-shaped baffle prevents the mold from moving onto the conveyor belt. When the mold moves to the designated position, it stops. The demolding mechanism removes the dumbbell casting from the mold and places it on the conveyor belt. The water-cooled roller assembly and the conveyor belt drive the mold and the dumbbell casting to be unloaded, respectively.

[0008] Preferably, the detection mechanism includes a protective box, a controller, a position sensor, and a cooling fan. The bottom of the protective box is connected to the top of the workbench. The controller is installed on the protective box, the position sensor is installed inside the protective box, and the cooling fan is installed on the protective box. The cooling fan is activated to accelerate the cooling of the dumbbell. The position sensor detects the position of the dumbbell. When the dumbbell moves to the demolding position, the controller stops the water-cooled roller assembly and controls the drive mechanism and demolding mechanism to perform the demolding operation.

[0009] Preferably, the cooling mechanism includes a water pump, a water supply pipe, a water distribution pipe, a regulating valve, and multiple sets of atomizing nozzles. The water pump is mounted on a protective box, and the outlet of the water pump is connected to the inlet of the water supply pipe. The outlet of the water supply pipe is connected to the inlet of the water-cooled roller assembly. The water distribution pipe is mounted on the protective box and is connected to the inside of the water supply pipe. The regulating valve is mounted on the water distribution pipe, and multiple sets of atomizing nozzles are all mounted on the water distribution pipe. The water pump is started to pump water and continuously deliver cooling water to the multiple sets of water-cooled roller assemblies. The amount of water entering the water distribution pipe is adjusted by the regulating valve. The multiple sets of atomizing nozzles atomize the cooling water in the water distribution pipe and spray it onto the surface of the dumbbells to accelerate the cooling of the dumbbells.

[0010] Preferably, the fixing mechanism includes a rotating shaft, two sets of first cylinders, a fixing block, and a pressing plate. The rotating shaft is rotatably mounted on the protective box, and both sets of first cylinders are mounted on the rotating shaft. The fixing block is connected and mounted between the two sets of first cylinders, and the pressing plate is mounted on the fixing block. The driving mechanism drives the two sets of rotating shafts to rotate, and adjusts the extension and retraction of the first cylinders according to the size of the mold. The two sets of rotating shafts synchronously drive the two sets of fixing blocks to rotate, pushing the mold to the middle position. Then, the two sets of first cylinders are activated to push the fixing block and the pressing plate down, ensuring the fixing effect on the mold and preventing the mold from being lifted during demolding.

[0011] Preferably, the drive mechanism includes a chassis, a stepper motor, a first reducer, a drive gear, a driven gear, two sets of synchronous pulleys, and a synchronous belt. The chassis is mounted on a protective housing, and the stepper motor is mounted on the chassis. The output end of the stepper motor is connected to the input end of the first reducer, and the output end of the first reducer is connected to the input end of the first set of rotating shafts. The drive gear is mounted on the first set of rotating shafts, and the driven gear is rotatably mounted on the protective housing and meshes with the drive gear. The two sets of synchronous pulleys are respectively mounted on the second set of rotating shafts and the driven gear. The synchronous belt is tensioned between the two sets of synchronous pulleys. When the stepper motor is started, it drives the first set of rotating shafts to rotate through the first reducer. The first set of rotating shafts drives the drive gear to rotate. The drive gear and the driven gear mesh, and the driven gear drives the synchronous pulley connected to it to rotate. The two sets of synchronous pulleys are connected by a synchronous belt, which in turn drives the second set of rotating shafts to rotate, and the two sets of rotating shafts rotate in opposite directions.

[0012] Preferably, the demolding mechanism includes a servo motor, a second reducer, a lead screw box, a lead screw, a slider, a second cylinder, and grippers. The servo motor is mounted on a protective box, and its output end is connected to the power input end of the second reducer. The lead screw box is installed inside the protective box, and the power output end of the second reducer is connected to the power input end of the lead screw. The slider is slidably mounted inside the lead screw box and meshes with the lead screw for transmission. The top end of the second cylinder is connected to the bottom end of the slider, and the top end of the grippers is connected to the bottom end of the second cylinder. When the servo motor is started, it drives the lead screw to rotate through the second reducer. The lead screw drives the slider to slide inside the lead screw box, causing the grippers to move above the dumbbell casting. The second cylinder is then started to push the grippers down, and the grippers remove the dumbbell. The servo motor is started again to move the lead screw onto the conveyor belt, and the second cylinder pushes the grippers down to place the dumbbell on the conveyor belt.

[0013] Preferably, the gripper is equipped with multiple sets of electromagnetic chucks on its surface; the middle part of the dumbbell is made of cast iron. When the electromagnetic chuck is energized, it generates a strong magnetic force that directly attracts the cast iron dumbbell. It not only has a huge gripping force on ferromagnetic materials, but also completely ignores problems such as high temperature, roughness, and oil stains, and will not cause any mechanical scratches on the surface of the casting.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: After casting is completed, the lower mold with dumbbell casting is transported to the conveying mechanism. The conveying mechanism drives the mold forward. The cooling mechanism transports cooling water to the conveying mechanism to accelerate the cooling of the mold. At the same time, the cooling water is atomized and sprayed onto the dumbbell to accelerate the cooling of the dumbbell. The detection mechanism detects the position of the dumbbell and stops when it moves to the worker. The drive mechanism drives two sets of fixing mechanisms to fix the mold. The demolding mechanism removes the dumbbell from the mold. The conveying mechanism drives the mold and dumbbell to be discharged. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a partially enlarged isometric structural diagram of the conveying mechanism, detection mechanism, driving mechanism, and demolding mechanism of this utility model; Figure 3 This is a cross-sectional isometric structural diagram of the conveying mechanism, detection mechanism, and demolding mechanism of this utility model; Figure 4 This is a cross-sectional isometric structural diagram of the cooling mechanism of this utility model; Figure 5 This is a partially enlarged isometric structural diagram of the fixing mechanism of this utility model; Figure 6 This is a partially enlarged cross-sectional isometric structural diagram of the drive mechanism of this utility model.

[0016] The attached diagram is labeled as follows: 01, conveying mechanism; 11, workbench; 12, water-cooled roller assembly; 13, conveyor belt; 14, arc-shaped baffle; 02, detection mechanism; 21, protective box; 22, controller; 23, position sensor; 24, cooling fan; 03, cooling mechanism; 31, water pump; 32, water supply pipe; 33, water distribution pipe; 34, regulating valve; 35, atomizing nozzle; 04, fixing mechanism; 41, rotating shaft; 42, first cylinder; 43, fixing block; 44, pressing plate; 05, drive mechanism; 51, chassis; 52, stepper motor; 53, first reducer; 54, driving gear; 55, driven gear; 56, synchronous pulley; 57, synchronous belt; 06, demolding mechanism; 61, servo motor; 62, second reducer; 63, lead screw box; 64, lead screw; 65, slider; 66, second cylinder; 67, gripper. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0018] This utility model discloses a dumbbell casting demolding device, including a conveying mechanism 01; it also includes a detection mechanism 02, a cooling mechanism 03, two sets of fixing mechanisms 04, a driving mechanism 05, and a demolding mechanism 06. The detection mechanism 02 is installed on the conveying mechanism 01 and detects the dumbbell position. The cooling mechanism 03 is installed on the detection mechanism 02 and accelerates the cooling of the dumbbell. Both sets of fixing mechanisms 04 are installed on the detection mechanism 02 and fix the mold. The driving mechanism 05 is installed on the fixing mechanisms 04 and drives the two sets of fixing mechanisms 04 to rotate. The demolding mechanism 06 is installed on the detection mechanism 02 and demolds the dumbbell. The conveying mechanism 01 includes a workbench 11, a water-cooled roller assembly 12, a conveyor belt 13, and an arc-shaped baffle 14. The bottom of the workbench 11 is connected to the ground. The water-cooled roller assembly 12 is rotatably mounted on the workbench 11. The conveyor belt 13 is tensioned and mounted on the water-cooled roller assembly 12. The arc-shaped baffle 14 is mounted on the workbench 11. The detection mechanism 02 includes a protective box 21, a controller 22, a position sensor 23, and a cooling fan 24. The bottom of the protective box 21 is connected to the top of the workbench 11. The controller 22 is mounted on the protective box 21. The position sensor 23 is mounted inside the protective box 21. The cooling fan 24 is mounted on the protective box 21. The cooling mechanism 03 includes a water pump 31, a water supply pipe 32, a water distribution pipe 33, a regulating valve 34, and multiple sets of atomizing nozzles 35, all mounted on the protective box 21. The water pump 31 is mounted on the protective box 21, and its outlet is connected to the inlet of the water supply pipe 32. The outlet of the water supply pipe 32 is connected to the inlet of the water-cooled roller assembly 12. The water distribution pipe 33 is mounted on the protective box 21 and is connected to the inside of the water supply pipe 32. The regulating valve 34 is mounted on the water distribution pipe 33, and multiple sets of atomizing nozzles 35 are all mounted on the water distribution pipe 33. The demolding mechanism 06 includes a servo motor 61, a second reducer 62, and a lead screw box. 63, lead screw 64, slider 65, second cylinder 66, and gripper 67; servo motor 61 is mounted on protective housing 21, and the output end of servo motor 61 is connected to the power input end of second reducer 62; lead screw housing 63 is mounted inside protective housing 21, and the power output end of second reducer 62 is connected to the power input end of lead screw 64; slider 65 is slidably mounted inside lead screw housing 63 and meshes with lead screw 64 for transmission; the top end of second cylinder 66 is connected to the bottom end of slider 65; the top end of gripper 67 is connected to the bottom end of second cylinder 66; it also includes gripper 67 with multiple sets of electromagnetic chucks mounted on its surface;During operation, firstly, after casting is completed, the lower mold containing the dumbbell casting is conveyed to multiple sets of water-cooled rollers 12. The multiple sets of water-cooled rollers 12 cool the mold while simultaneously conveying it forward. An arc-shaped baffle 14 prevents the mold from moving onto the conveyor belt 13. The cooling fan 24 is activated to accelerate dumbbell cooling, and simultaneously, the water pump 31 pumps water, continuously supplying cooling water to the multiple sets of water-cooled rollers 12. The amount of water entering the water distribution pipe 33 is adjusted by the regulating valve 34. Multiple atomizing nozzles 35 atomize the cooling water in the water distribution pipe 33 and spray it onto the dumbbell surface to accelerate cooling. The position sensor 23 detects the dumbbell's position. When the dumbbell moves to the demolding position, the controller 22 stops the water-cooled rollers 12 and controls the drive mechanism 05 and the demolding mechanism 06 via the water-cooled rollers 12. The mold mechanism 06 performs a demolding operation, activating the servo motor 61. The servo motor 61 drives the lead screw 64 to rotate via the second reducer 62. The lead screw 64 drives the slider 65 to slide within the lead screw box 63, moving the gripper 67 above the dumbbell casting. The second cylinder 66 is then activated to push the gripper 67 downwards. The dumbbell's center is made of cast iron. When the electromagnetic chuck is energized, it generates a strong magnetic force, directly attracting the cast iron dumbbell. This not only provides a powerful grip on ferromagnetic materials, completely ignoring issues like high temperatures, roughness, and oil stains, but also prevents any mechanical scratches on the casting surface. The servo motor 61 is activated again to move the lead screw 64 onto the conveyor belt 13. The second cylinder 66 pushes the gripper 67 downwards, placing the dumbbell on the conveyor belt 13. The water-cooled roller group 12 and the conveyor belt 13 then respectively unload the mold and the dumbbell casting. Example 2

[0019] like Figures 1 to 6As shown, this utility model discloses a dumbbell casting demolding device based on embodiment 1. The fixing mechanism 04 includes a rotating shaft 41, two sets of first cylinders 42, a fixing block 43, and a pressing plate 44. The rotating shaft 41 is rotatably mounted on the protective box 21, and both sets of first cylinders 42 are mounted on the rotating shaft 41. The fixing block 43 is connected and mounted between the two sets of first cylinders 42, and the pressing plate 44 is mounted on the fixing block 43. The driving mechanism 05 includes a chassis 51, a stepper motor 52, a first reducer 53, a driving gear 54, a driven gear 55, and two sets of synchronous pulleys 56. The synchronous belt 57 and the housing 51 are mounted on the protective housing 21. The stepper motor 52 is mounted on the housing 51. The output end of the stepper motor 52 is connected to the input end of the first reducer 53. The output end of the first reducer 53 is connected to the input end of the first set of rotating shafts 41. The driving gear 54 is mounted on the first set of rotating shafts 41. The driven gear 55 is rotatably mounted on the protective housing 21 and meshes with the driving gear 54 for transmission. The two sets of synchronous pulleys 56 are respectively mounted on the second set of rotating shafts 41 and the driven gear 55. The synchronous belt 57 is tensioned and mounted between the two sets of synchronous pulleys 56.During operation, firstly, after casting is completed, the lower mold containing the dumbbell casting is conveyed to multiple sets of water-cooled rollers 12. The multiple sets of water-cooled rollers 12 cool the mold while simultaneously conveying it forward. An arc-shaped baffle 14 prevents the mold from moving onto the conveyor belt 13. The cooling fan 24 is activated to accelerate the cooling of the dumbbell, and at the same time, the water pump 31 is activated to pump water, continuously delivering cooling water to the multiple sets of water-cooled rollers 12. The amount of water entering the water distribution pipe 33 is adjusted by the regulating valve 34, and multiple sets of atomizing nozzles 35 atomize the cooling water in the water distribution pipe 33 and spray it onto the surface of the dumbbell to accelerate the cooling of the dumbbell. Position sensor 23 detects the position of the dumbbell. When the dumbbell moves to the demolding position, controller 22 controls the water-cooled roller assembly 12 to stop running, and the water-cooled roller assembly 12 controls the drive mechanism 05 and the demolding mechanism 06 to perform the demolding operation. Stepper motor 52 is started, and stepper motor 52 drives the first set of rotating shafts 41 to rotate through the first reducer 53. The first set of rotating shafts 41 drives the drive gear 54 to rotate. The drive gear 54 and the driven gear 55 mesh and drive each other. The driven gear 55 drives the synchronous pulley 56 connected to it to rotate. The two sets of synchronous pulleys 56 are driven by synchronous belt 57. The connection drives the second set of rotating shafts 41 to rotate, and the two sets of rotating shafts 41 rotate in opposite directions. The extension and retraction of the first cylinder 42 is adjusted according to the size of the mold. The two sets of rotating shafts 41 synchronously drive the two sets of fixed blocks 43 to rotate, pushing the mold to the middle position. Then, the two sets of first cylinders 42 are activated to push the fixed blocks 43 and the pressing plate 44 down, ensuring the fixing effect of the mold and preventing the mold from rising during demolding. The servo motor 61 is activated, and the servo motor 61 drives the lead screw 64 to rotate through the second reducer 62. The lead screw 64 drives the slider 65 to slide in the lead screw box 63, so that the gripper... 67 moves above the dumbbell casting, and the second cylinder 66 is activated to push the gripper 67 down. The middle of the dumbbell is made of cast iron. After the electromagnetic chuck is energized, it generates a strong magnetic force, directly attracting the cast iron dumbbell. It not only has a huge gripping force on ferromagnetic materials, but also completely ignores problems such as high temperature, roughness, and oil stains, and will not cause any mechanical scratches on the surface of the casting. The servo motor 61 is activated again to drive the lead screw 64 to move onto the conveyor belt 13. The second cylinder 66 pushes the gripper 67 down to place the dumbbell on the conveyor belt 13. The water-cooled roller group 12 and the conveyor belt 13 respectively drive the mold and the dumbbell casting to unload.

[0020] The stepper motor 52, the first reducer 53, the servo motor 61, and the second reducer 62 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dumbbell casting demolding device, comprising a conveying mechanism (01); characterized in that, It also includes a detection mechanism (02), a cooling mechanism (03), two sets of fixing mechanisms (04), a drive mechanism (05), and a demolding mechanism (06). The detection mechanism (02) is installed on the conveying mechanism (01) and detects the position of the dumbbell. The cooling mechanism (03) is installed on the detection mechanism (02) and accelerates the cooling of the dumbbell. Both sets of fixing mechanisms (04) are installed on the detection mechanism (02) and fix the mold. The drive mechanism (05) is installed on the fixing mechanism (04) and drives the two sets of fixing mechanisms (04) to rotate. The demolding mechanism (06) is installed on the detection mechanism (02) and removes the dumbbell.

2. The dumbbell casting demolding device as described in claim 1, characterized in that, The conveying mechanism (01) includes a workbench (11), a water-cooled roller assembly (12), a conveyor belt (13), and an arc-shaped baffle (14). The bottom end of the workbench (11) is connected to the ground. The water-cooled roller assembly (12) is rotatably mounted on the workbench (11). The conveyor belt (13) is tensioned and mounted on the water-cooled roller assembly (12). The arc-shaped baffle (14) is mounted on the workbench (11).

3. The dumbbell casting demolding device as described in claim 2, characterized in that, The testing mechanism (02) includes a protective box (21), a controller (22), a position sensor (23), and a cooling fan (24). The bottom of the protective box (21) is connected to the top of the workbench (11). The controller (22) is installed on the protective box (21), the position sensor (23) is installed inside the protective box (21), and the cooling fan (24) is installed on the protective box (21).

4. The dumbbell casting demolding device as described in claim 3, characterized in that, The cooling mechanism (03) includes a water pump (31), a water supply pipe (32), a water distribution pipe (33), a regulating valve (34), and multiple sets of atomizing nozzles (35). The water pump (31) is installed on the protective box (21). The outlet of the water pump (31) is connected to the inlet of the water supply pipe (32). The outlet of the water supply pipe (32) is connected to the inlet of the water-cooled roller group (12). The water distribution pipe (33) is installed on the protective box (21) and is connected to the inside of the water supply pipe (32). The regulating valve (34) is installed on the water distribution pipe (33). Multiple sets of atomizing nozzles (35) are all installed on the water distribution pipe (33).

5. A dumbbell casting demolding device as described in claim 3, characterized in that, The fixing mechanism (04) includes a rotating shaft (41), two sets of first cylinders (42), a fixing block (43) and a pressing plate (44). The rotating shaft (41) is rotatably mounted on the protective box (21). Both sets of first cylinders (42) are mounted on the rotating shaft (41). The fixing block (43) is connected between the two sets of first cylinders (42). The pressing plate (44) is mounted on the fixing block (43).

6. The dumbbell casting demolding device as described in claim 5, characterized in that, The drive mechanism (05) includes a chassis (51), a stepper motor (52), a first reducer (53), a drive gear (54), a driven gear (55), two sets of synchronous pulleys (56), and a synchronous belt (57). The chassis (51) is mounted on the protective box (21). The stepper motor (52) is mounted on the chassis (51). The output end of the stepper motor (52) is connected to the input end of the first reducer (53). The output end of the first reducer (53) is connected to the input end of the first set of rotating shafts (41). The drive gear (54) is mounted on the first set of rotating shafts (41). The driven gear (55) is rotatably mounted on the protective box (21) and meshes with the drive gear (54) for transmission. The two sets of synchronous pulleys (56) are respectively mounted on the second set of rotating shafts (41) and the driven gear (55). The synchronous belt (57) is tensioned between the two sets of synchronous pulleys (56).

7. A dumbbell casting demolding device as described in claim 3, characterized in that, The demolding mechanism (06) includes a servo motor (61), a second reducer (62), a lead screw box (63), a lead screw (64), a slider (65), a second cylinder (66), and a gripper (67). The servo motor (61) is mounted on the protective box (21), and the output end of the servo motor (61) is connected to the power input end of the second reducer (62). The lead screw box (63) is mounted inside the protective box (21), and the power output end of the second reducer (62) is connected to the power input end of the lead screw (64). The slider (65) is slidably mounted inside the lead screw box (63) and meshes with the lead screw (64) for transmission. The top end of the second cylinder (66) is connected to the bottom end of the slider (65), and the top end of the gripper (67) is connected to the bottom end of the second cylinder (66).

8. A dumbbell casting demolding device as described in claim 7, characterized in that, It also includes grippers (67) for mounting multiple electromagnetic chucks on the surface.

Images