A vibrating sand-falling machine for sand casting

Abstract

The present invention provides a vibrating sand-dropping machine for sand casting, comprising a shell, a screen drum is arranged on the inner side of the shell, a plurality of springs are arranged between the screen drum and the shell, a first hydraulic cylinder is arranged at one end of the inner wall of the shell, and a distance sensor is connected to the other end, a first universal wheel is connected to the bottom of the screen drum, the first universal wheel is rollingly connected to a bottom plate, the bottom plate is fixedly connected to the inner wall of the shell, fixed plates are respectively connected to the two ends of the upper inner side of the shell, and second universal wheels are respectively connected to the two ends of the top surface of the screen drum; the screen drum is arranged, a plurality of springs are arranged between the screen drum and the shell, and the screen drum is driven to move by the elastic force of the springs, so that the casting is vibrated to remove sand, thereby greatly improving the efficiency of sand removal, and the second universal wheel is arranged to greatly improve the stability of the screen drum when moving; a closing component is provided by the society, so that the top of the screen drum is closed.

Description

Technical Field

[0001] The invention belongs to the technical field of casting, and in particular relates to a vibrating sand-falling machine for sand casting. Background Art

[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. During the casting process, the metal needs to be melted into liquid and poured into a mold made of molding sand. When the mold is cooled to a certain temperature, in order to obtain the casting, the vibration generated by the sand falling machine is needed to break the mold and separate the casting from the molding sand.

[0003] In the prior art, the sand-dropping machine has low sand-dropping efficiency and causes great loss to the machine itself; castings are often placed or moved manually, which is inefficient in the sand-dropping machine, thus greatly increasing the production cost of the enterprise. Summary of the invention

[0004] The invention provides a vibrating sand-falling machine for sand casting, aiming to solve the problems that the existing sand-falling machine has low sand-falling efficiency and large loss to the machine itself; and the casting is often manually placed or moved in the sand-falling machine with low efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a vibrating sand-falling machine for sand casting, comprising a shell, a screen drum is arranged on the inner side of the shell, a plurality of springs are arranged between the screen drum and the shell, a first hydraulic cylinder is arranged at one end of the inner wall of the shell, and a distance sensor is connected to the other end, a first universal wheel is connected to the bottom of the screen drum, the first universal wheel is rollingly connected to the bottom plate, the bottom plate is fixedly connected to the inner wall of the shell, fixed plates are respectively connected at both ends of the inner upper part of the shell, second universal wheels are respectively connected at both ends of the top surface of the screen drum, and any of the second universal wheels is rollingly connected to the corresponding fixed plate; closing components are respectively connected to the two fixed plates, a fixing frame is connected to the top end of the shell, a discharging component is cooperatively arranged on the fixing frame, and the first hydraulic cylinder, the distance sensor, the closing component and the discharging component are respectively connected to the controller.

[0006] Preferably, any of the closing components includes a driving motor disposed on a fixed plate, a bearing seat is provided on one side of the driving motor, a closing door is rotatably connected to the bearing seat, the driving motor drives the closing door to rotate, and the driving motor is connected to a controller.

[0007] Preferably, the discharging assembly includes a second hydraulic cylinder arranged on a fixed frame, the output end of the second hydraulic cylinder is connected to a connecting plate, the bottom end of the connecting plate is connected to two third hydraulic cylinders, the output end of any of the third hydraulic cylinders is connected to a clamping plate, and the second hydraulic cylinder and the third hydraulic cylinder are connected to a controller.

[0008] Preferably, the two third hydraulic cylinders are arranged back to back, and the connecting plate is slidably connected to the clamping plate.

[0009] Preferably, a rubber layer is provided on the inner side of the screen cylinder.

[0010] Preferably, the maximum compression distance of the spring is smaller than the distance between the housing and the screen drum.

[0011] Preferably, the distance between the two fixing plates is twice the width of the closed door.

[0012] Preferably, through holes are respectively provided on the bottom and the bottom plate of the sieve cylinder.

[0013] The beneficial effects of the present invention are as follows: by providing a screen drum, a plurality of springs are provided between the screen drum and the shell, the screen drum is driven to move by the elastic force of the springs, thereby vibrating and removing sand from the casting, thereby greatly improving the efficiency of sand removal; by providing a second universal wheel, the stability of the screen drum during movement is greatly improved; by providing a closing component, the top of the screen drum is closed; by providing a discharging component, the moving in and out of the casting is facilitated, thereby greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 for Figure 1 Middle AA section view;

[0016] In the figure: 1-shell, 2-screen drum, 3-spring, 4-first hydraulic cylinder, 5-distance sensor, 6-first universal wheel, 7-bottom plate, 8-fixed plate, 9-second universal wheel, 10-closing assembly, 101-drive motor, 102-bearing seat, 103-third hydraulic cylinder, 11-fixed frame, 12-discharging assembly, 121-second hydraulic cylinder, 122-connecting plate, 123-third hydraulic cylinder, 124-clamping plate, 13-rubber layer. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with embodiments, but the protection scope of the present invention is not limited thereto.

[0018] The present invention relates to a vibrating sand-falling machine for sand casting, comprising a shell 1, a screen drum 2 is arranged on the inner side of the shell 1, a plurality of springs 3 are arranged between the screen drum 2 and the shell 1, a first hydraulic cylinder 4 is arranged on one end of the inner wall of the shell 1, and a distance sensor 5 is connected to the other end, a first universal wheel 6 is connected to the bottom of the screen drum 2, the first universal wheel 6 is rollingly connected to a bottom plate 7, the bottom plate 7 is fixedly connected to the inner wall of the shell 1, fixed plates 8 are respectively connected to the two ends of the inner upper part of the shell 1, second universal wheels 9 are respectively connected to the two ends of the top surface of the screen drum 2, and any second universal wheel 9 is rollingly connected to the corresponding fixed plate 8; closing components 10 are respectively connected to the two fixed plates 8, a fixing frame 11 is connected to the top of the shell 1, a discharging component 12 is matched on the fixing frame 11, and the first hydraulic cylinder 4, the distance sensor 5, the closing component 10 and the discharging component 12 are respectively connected to a controller.

[0019] In this embodiment, a sieve drum 2 is provided on the inner side of the shell 1, and the sieve drum 2 is elastically connected to the shell 1 through a spring 3. A first hydraulic cylinder 4 is connected to the inner side wall of the shell 1, and a distance sensor 5 is connected to the other end. A bottom plate 7 is connected to the lower inner side of the shell 1, and the bottom plate 7 is located below the sieve drum 2. A first universal wheel 6 is connected to the bottom of the sieve drum 2, and the sieve drum 2 is rollingly connected to the bottom plate 7 through the first universal wheel 6. The first hydraulic cylinder 4 pushes the sieve drum 2 to move, and the spring 3 at one end of the sieve drum 2 is compressed, and the spring 3 at the other end is stretched, and the first pressure sensor 4 is reset. The sieve drum 2 rolls on the bottom plate 7 under the action of elastic force, thereby driving the casting in the sieve drum 2 to move, thereby playing a role in sand removal, greatly improving the efficiency of sand removal. At the same time, a distance sensor 5 is connected to the other side wall of the inner side of the shell 1, and the distance between the shell 1 and the sieve drum 2 is detected by the distance sensor 5. When the distance value between the shell 1 and the sieve drum 2 does not change, the spring is compressed by the first hydraulic cylinder 4, thereby providing power for the movement of the sieve drum 2.

[0020] In this embodiment, fixed plates 8 are respectively connected to the two ends of the upper inner wall of the shell 1, and second universal wheels 9 are respectively connected to the two sides of the top of the screen drum 9. The screen drum 2 is rollingly connected to the fixed plate 8 through the second universal wheels 9, and the second universal wheels 9 make the screen drum 2 more stable when moving.

[0021] In this embodiment, a closing assembly 10 is connected to the fixed plate 8, and the closing assembly 10 closes the top of the screen cylinder 2 to prevent the casting from moving out of the screen cylinder 2 due to the reaction force when the screen cylinder 2 moves. A fixing frame 11 is connected to the top of the shell 1, and a discharge assembly 12 is connected to the fixing frame 11. The discharge assembly 12 facilitates the removal of the casting after the casting is completed.

[0022] Furthermore, any closing component 10 includes a driving motor 101 arranged on the fixed plate 8, a bearing seat 102 is provided on one side of the driving motor 101, a closing door 103 is rotatably connected to the bearing seat 102, the driving motor 101 drives the closing door 103 to rotate, and the driving motor 101 is connected to a controller.

[0023] In this embodiment, a driving motor 101 is connected to the top of the fixed plate 8, one end of the driving motor 101 is connected to a bearing seat 102, the closing door 103 is rotatably connected to the bearing seat 102 via a rotating shaft, the output end of the driving motor 101 is connected to a gear, the gear is meshed with the groove teeth on one end of the rotating shaft, the driving motor 101 drives the gear to rotate, thereby driving the closing door 103 to rotate, thereby achieving closing and opening.

[0024] Furthermore, the discharging assembly 12 includes a second hydraulic cylinder 121 arranged on the fixed frame 11, the output end of the second hydraulic cylinder 121 is connected to a connecting plate 122, the bottom end of the connecting plate 122 is connected to two third hydraulic cylinders 123, the output end of any third hydraulic cylinder 123 is connected to a clamping plate 124, and the second hydraulic cylinder 121 and the third hydraulic cylinder 123 are connected to a controller.

[0025] Furthermore, the two third hydraulic cylinders 123 are arranged in back-to-back relation, and the connecting plate 122 is slidably connected to the clamping plate 124 .

[0026] In this embodiment, a second hydraulic cylinder 121 is connected to the top inner side of the fixed frame 11, and a connecting plate 122 is connected to the output end of the second hydraulic cylinder 121. Two third hydraulic cylinders 123 are connected to the middle position of the bottom of the connecting plate 122. The two third hydraulic cylinders 123 are arranged back to back, and a clamping plate 124 is connected to the output ends of the two third hydraulic cylinders 123. The clamping plate 124 is slidably connected to the connecting plate 122, so that the third hydraulic cylinder 123 drives the clamping plate 124 to move, thereby clamping the casting, and the second hydraulic cylinder 121 drives the casting to move up and down, thereby facilitating feeding and discharging.

[0027] In this embodiment, the two ends of the bottom surface of the connecting plate 122 are respectively connected to the third hydraulic cylinders 123, and the output ends of the two third hydraulic cylinders 123 are respectively connected to the clamping plates 124. The two clamping plates 124 are located in the middle position between the two third hydraulic cylinders 123. When the two third hydraulic cylinders 123 respectively drive the clamping plates 124 to move toward the middle, when the two third hydraulic cylinders 123 are extended to the maximum distance, the two clamping plates 124 are in a fitted state.

[0028] Furthermore, the inner sides of the screen cylinders 2 are respectively connected with rubber layers 13 .

[0029] Furthermore, the maximum compression distance of the spring 3 is smaller than the distance between the housing 1 and the screen drum 2 .

[0030] Furthermore, the distance between the two fixing plates 8 is twice the width of the closing door 103 .

[0031] Furthermore, through holes are respectively provided on the bottom of the sieve drum 2 and the bottom plate 7 .

[0032] In this embodiment, through holes are respectively formed on the bottom plate 7 and the bottom of the sieve drum 2 , and corresponding through holes are also formed on the connecting rubber layer 13 on the bottom of the sieve drum 2 .

[0033] The above-described embodiment is only a preferred solution of a vibrating sand-falling machine for sand casting of the present invention, and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. A vibrating sand-falling machine for sand casting, comprising a housing (1), characterized in that: A sieve drum (2) is arranged on the inner side of the housing (1), and a plurality of springs (3) are arranged between the sieve drum (2) and the housing (1). A first hydraulic cylinder (4) is arranged at one end of the inner side wall of the housing (1), and a distance sensor (5) is connected to the other end. A first universal wheel (6) is connected to the bottom of the sieve drum (2), and the first universal wheel (6) is rollingly connected to a bottom plate (7). The bottom plate (7) is fixedly connected to the inner side wall of the housing (1). Fixed plates (8) are respectively connected to the two ends of the inner upper part of the housing (1). Second universal wheels (9) are respectively connected to the two ends of the top surface of the sieve drum (2), and any of the second universal wheels (9) is rollingly connected to the corresponding fixed plate (8). Closing components (10) are respectively connected to the two fixed plates (8). A fixing frame (11) is connected to the top of the housing (1), and a discharging component (12) is arranged on the fixing frame (11). The first hydraulic cylinder (4), the distance sensor (5), the closing component (10) and the discharging component (12) are arranged in a coordinated manner. They are respectively connected to a controller, any of the closing components (10) comprises a driving motor (101) arranged on a fixed plate (8), a bearing seat (102) being arranged on one side of the driving motor (101), a closing door (103) being rotatably connected to the bearing seat (102), the driving motor (101) driving the closing door (103) to rotate, the driving motor (101) being connected to the controller, the discharging component (12) comprising a second hydraulic cylinder (121) arranged on a fixed frame (11), an output end of the second hydraulic cylinder (121) being connected to a connecting plate (122), a bottom end of the connecting plate (122) being connected to two third hydraulic cylinders (123), an output end of any of the third hydraulic cylinders (123) being connected to a clamping plate (124), the second hydraulic cylinder (121) and the third hydraulic cylinder (123) being connected to the controller, the two third hydraulic cylinders (123) being arranged in a back-to-back relationship, and the connecting plate (122) being slidably connected to the clamping plate (124).

2. The vibrating sand-falling machine for sand casting according to claim 1, characterized in that: A rubber layer (13) is provided on the inner side of the screen cylinder (2).

3. The vibrating sand-falling machine for sand casting according to claim 1, characterized in that: The maximum compression distance of the spring (3) is smaller than the distance between the housing (1) and the screen drum (2).

4. The vibrating sand-falling machine for sand casting according to claim 1, characterized in that: The distance between the two fixing plates (8) is twice the width of the closing door (103).

5. The vibrating sand-falling machine for sand casting according to claim 1, characterized in that: Through holes are respectively provided on the bottom of the sieve drum (2) and the bottom plate (7).

Images