Sand discharging device for electrostatic sand planting machine
By designing partitions and hydraulic control systems inside the rotating drum of the electrostatic sand planting machine, automatic separation and switching of sand particles of different specifications are achieved, solving the cumbersome problem of sand particle replacement in the production of coated abrasives and improving production efficiency.
Patent Information
- Application Number
- CN202422657483.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-31
AI Technical Summary
During the production of coated abrasives, sand grains of different specifications need to be frequently replaced, which makes the operation complicated and reduces production efficiency.
A sand feeding device for an electrostatic sand planting machine was designed. Sand of different specifications was stored separately by partitions in the rotating drum, and the opening and closing of the discharge port was controlled by hydraulic rods and motors to achieve automatic switching and separation of sand of different specifications.
The sand grain replacement process is simplified, the production efficiency of coated abrasive tools is improved, and the labor intensity of staff is reduced.
Smart Images
Figure CN223395086U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of feeding devices, in particular to a sand feeding device for an electrostatic sand planting machine. Background Art
[0002] In the production process of coated abrasives, electrostatic sand planting refers to the use of high-voltage electrostatic field and the electrical properties of the abrasive to make the abrasive become charged and adsorbed on the base material coated with the binder, forming an abrasive belt with excellent grinding performance; and different types of coated abrasives (such as different numbers of sandpaper) use different coarseness of sand particles. Therefore, when producing different types of coated abrasives, the staff is required to stop the machine, discharge the remaining sand particles in the discharge barrel, and then replace the sand particles of the required specifications, and then continue to start the production of coated molds; but each time a different type of coated mold is produced, the staff is required to replace the sand particles, the operation process is cumbersome, and the production efficiency of coated abrasives is reduced. Utility Model Content
[0003] The utility model discloses a sand feeding device for an electrostatic sand planting machine, which solves the problem that when producing different types of coating molds, workers need to replace sand particles, the operation process is cumbersome, and the production efficiency of coated abrasives is reduced.
[0004] In order to solve the above technical problems, the present invention specifically adopts the following technical solutions:
[0005] A sand feeding device for an electrostatic sand planting machine comprises a sand planting machine body, a circular shell is provided above the sand planting machine body, the bottom of the circular shell is connected to a feeding pipe connected to the top of the sand planting machine body, a push rod is provided in the feeding pipe, and a No. 1 hydraulic rod for driving the push rod to rise and fall is provided on the circular shell; a rotating drum is rotatably connected in the circular shell, a fixed rod is fixed at the axis of the rotating drum, a group of partitions for dividing the interior of the rotating drum into several storage spaces are fixed on the fixed rod, a group of discharge ports respectively connected to the several storage spaces are provided on the outer ring surface of the rotating drum, a telescopic rod connected to the fixed rod is provided in the storage space in the rotating drum, a sealing plate for sealing the discharge port is fixed to the telescopic end of the telescopic rod; a hopper is connected to the top of the circular shell, a No. 2 hydraulic rod for pushing the sealing plate is provided in the hopper; a No. 1 motor for driving the rotating drum to rotate is provided on the circular shell.
[0006] Compared with the prior art, the present invention has the following beneficial effects:
[0007] First, make a discharge port on the drum correspond to the connection between the hopper and the round shell, then put the sand to be used into the hopper, start the No. 2 hydraulic rod to drive the sealing plate blocking the discharge port to move downward, and after the telescopic end of the telescopic rod is contracted, the discharge port corresponding to the connection between the hopper and the round shell is opened, and the sand in the hopper can enter a storage space in the drum through the discharge port; then start the No. 1 motor to drive the drum to rotate, and repeat the above operation, so that sand of different specifications enters several storage spaces in the drum respectively, and a group of partitions can separate sand of different specifications; when a certain specification of sand is needed, the No. 1 motor can be started to rotate the drum so that the storage space containing sand of that specification is closest to the discharge pipe. When the material is discharged, the discharge port connected to the storage space corresponds to the connection between the discharge pipe and the round shell, and then the No. 1 hydraulic rod is started to drive the push rod to move upward, and the sealing plate is pushed upward to shrink the telescopic end of the telescopic rod. After the discharge port is opened, the sand in the storage space can enter the sand planting machine body through the discharge pipe, and the sand is discharged. When sand of a certain specification is needed later, the drum is rotated, and the storage space storing the sand of the required specification is close to the discharge pipe, and the above operation is repeated. The utility model can store sand of different specifications separately, so that when producing coated abrasives of different models, it can be switched in time. The operation is simple and fast, which reduces the labor intensity of the staff and improves the processing efficiency of the coated abrasives. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic structural diagram of the utility model;
[0009] Figure 2 This is a schematic structural diagram of a circular shell section of the present invention;
[0010] Figure 3 This is a schematic structural diagram of a cross-section of the movable ring of the present invention.
[0011] In the figure: 1. Sand planting machine body; 2. Round shell; 21. Motor No. 1; 22. Discharge pipe; 23. Opening; 24. Hydraulic rod No. 1; 25. Push rod; 26. Baffle; 3. Rotating drum; 31. Fixed rod; 32. Partition; 33. Telescopic rod; 34. Sealing plate; 35. Trapezoidal block; 36. Fixed ring; 37. Folding tube; 4. Hopper; 41. Fixed beam; 42. Hydraulic rod No. 2; 43. Push rod; 5. Motor No. 2; 51. Column; 52. Cross bar; 53. Moving ring; 6. Loading ring; 61. Positioning rod; 7. Filter; 71. Pull rod. DETAILED DESCRIPTION
[0012] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.
[0013] like Figure 1and Figure 2 As shown, the utility model provides a sand material feeding device for an electrostatic sand planting machine, comprising a sand planting machine body 1, a round shell 2 is provided above the sand planting machine body 1, the bottom of the round shell 2 is connected to a feeding pipe 22 connected to the top of the sand planting machine body 1, a push rod 25 is provided in the feeding pipe 22, and a hydraulic rod 24 for driving the push rod 25 to rise and fall is provided on the round shell 2; a rotating drum 3 is rotatably connected in the round shell 2, a fixing rod 31 is fixed at the axis of the rotating drum 3, and a group of fixing rods 31 are fixed on the fixing rod 31 for raising and lowering the rotating drum 3 The interior is divided into several storage spaces by partitions 32, and the outer ring surface of the rotating drum 3 is provided with a group of discharge ports connected to the several storage spaces respectively. A telescopic rod 33 connected to the fixed rod 31 is provided in the storage space inside the rotating drum 3, and a sealing plate 34 for sealing the discharge port is fixed to the telescopic end of the telescopic rod 33; the top of the circular shell 2 is connected to the hopper 4, and the hopper 4 is provided with a No. 2 hydraulic rod 42 for pushing the sealing plate 34; the circular shell 2 is provided with a No. 1 motor 21 for driving the rotating drum 3 to rotate.
[0014] like Figure 1 and Figure 2 As shown, an opening 23 is provided on one side of the discharge pipe 22, and the push rod 25 is arranged in an L shape. One end of the push rod 25 passes through the opening 23 and is fixed to the telescopic end of the No. 1 hydraulic rod 24, and the fixed end of the No. 1 hydraulic rod 24 is fixed on the round shell 2; two baffles 26 are fixed on the push rod 25, which are symmetrically distributed up and down and in contact with the inner wall of the discharge pipe 22, and the baffle 26 located above corresponds to the opening 23. After starting the No. 1 hydraulic rod 24, the telescopic end of the No. 1 hydraulic rod 24 contracts and can drive the push rod 25 to move upward, and the top end of the push rod 25 can pass through the connection between the discharge pipe 22 and the circular shell 2 and enter a discharge port on the rotating drum 3 (a discharge port corresponding to the connection between the discharge pipe 22 and the circular shell 2), and then push the sealing plate 34 upward to make the telescopic end of the telescopic rod 33 contract (the telescopic rod 33 includes a sleeve fixed on the fixed rod 31, a spring fixed in the sleeve, and a movable rod extending outside the sleeve is fixed at the other end of the spring, and the movable rod is slidably connected to the inner wall of the sleeve), and the sealing plate 34 no longer seals the discharge port, so that the sand particles in a storage space in the rotating drum 3 can be discharged through the discharge port, and the sand particles can enter the sand planting machine body 1 through the discharge pipe 22; the two baffles 26 are set, and when the push rod 25 moves upward or downward, the two baffles 26 can respectively block the opening 23.
[0015] like Figure 2 As shown, a fixing ring 36 is fixed to the fixed end of the telescopic rod 33, and a folding tube 37 is fixed between the fixing ring 36 and the sealing plate 34. The telescopic end of the telescopic rod 33 is located within the folding tube 37. The folding tube 37 can block the telescopic end of the telescopic rod 33 to prevent sand from entering the interior of the telescopic rod 33. When the telescopic end of the telescopic rod 33 moves, the folding tube 37 is compressed or stretched.
[0016] like Figure 2 As shown, the side of the sealing plate 34 away from the telescopic rod 33 is fixed with a trapezoidal block 35 inserted into the discharge port of the drum 3, and the side of the sealing plate 34 close to the telescopic rod 33 is arranged in an arc shape. Figure 2 As shown in the figure, when the push rod 25 moves toward the sealing plate 34, it first contacts the trapezoidal block 35 and then lifts the trapezoidal block 35 to open the discharge port; the setting of the trapezoidal block 35 can control the discharge speed of the sand in the storage space according to the distance moved by the trapezoidal block 35, so as to meet the production needs of coated abrasives; and the sealing plate 34 is arranged in an arc shape on one side close to the telescopic rod 33, which can effectively prevent sand from accumulating on the sealing plate 34.
[0017] like Figure 2 As shown, a fixed beam 41 with an arc-shaped top surface is fixed in the hopper 4, the fixed end of the No. 2 hydraulic rod 42 is fixed to the bottom of the fixed beam 41, and a push rod 43 is fixed to the telescopic end of the No. 2 hydraulic rod 42. After the No. 2 hydraulic rod 42 is started, the telescopic end of the No. 2 hydraulic rod 42 can drive the push rod 43 to move downward, so that the bottom end of the push rod 43 enters the connection between the hopper 4 and the circular shell 2, and then the push rod 43 enters the discharge port corresponding to the connection between the hopper 4 and the circular shell 2, and then pushes the sealing plate 34 to move downward, opening the discharge port, so that the sand in the hopper 4 can enter the corresponding storage space; the top of the fixed beam 41 is set in an arc shape, which can effectively prevent sand from accumulating on the fixed beam 41.
[0018] like Figure 1 and Figure 3 As shown, a No. 2 motor 5 is fixed to one side of the hopper 4, a column 51 is fixed to the rotating shaft of the No. 2 motor 5, a group of cross bars 52 distributed in a circular array are fixed to the outer ring surface of the column 51, and a movable ring 53 is fixed to the other end of the cross bar 52. A movable ring 53 is located directly above the hopper 4, and a detachable filter screen 7 is provided in the movable ring 53. The number of filters 7 is the same as the number of storage spaces in the drum 3. The number of storage spaces in the drum 3 is at least four, and the corresponding number of movable rings 53 is also at least four. The inner diameters of the filter holes on a group of filters 7 are different, so as to facilitate the screening of four different sand particles. When the sand particles are put into the hopper 4, they first enter the movable ring 53 located directly above the hopper 4, and then the filter screen 7 can screen the sand particles and remove the larger sand particles so that the qualified sand particles can enter the corresponding storage space in the drum 3. Subsequently, according to different storage spaces, the No. 2 motor 5 can be started to drive the column 51 to rotate, and the cross bar 52 can drive the movable ring 53 to move accordingly. The main body of the No. 2 motor 5 is fixed to the hopper 4 through the bearing plate, and the No. 1 motor 21 is fixed to the round shell 2 through the bearing block.
[0019] like Figure 3 As shown, a carrying ring 6 is fixed to the inner wall of the movable ring 53, a positioning rod 61 is fixed to the top of the carrying ring 6, a positioning hole for the positioning rod 61 to pass through is opened on the filter screen 7, and a pull rod 71 is fixed to the top of the filter screen 7. The carrying ring 6 can support the filter screen 7, and the positioning rod 61 can increase the stability of the filter screen 7. After the staff removes the filter screen 7 from the movable ring 53, they can clean the sand on the filter screen 7.
[0020] When in use, a set of partitions 32 divides the interior of the drum 3 into four storage spaces, so that each storage space can store sand particles of different specifications (for the convenience of subsequent description, Figure 1 The directions shown in the figure are, from top to bottom, numbered clockwise as A, B, C, and D four storage spaces); the discharge port on storage space A corresponds to the connection between the hopper 4 and the round shell 2. When sand needs to be stored in storage space A, the second hydraulic rod 42 is first activated to move the push rod 43 downward into the discharge port on storage space A, and then the sealing plate 34 is pushed downward to retract the telescopic end of the telescopic rod 33. Then, the discharge port on storage space A is opened, so that the sand in the hopper 4 can enter storage space A. During this time, when all the sand grains have entered the storage space A, the telescopic end of the No. 2 hydraulic rod 42 is restored, and the telescopic rod 33 drives the sealing plate 34 to reset to block the discharge port, completing the storage of one specification of sand grains; after starting the No. 1 motor 21 to rotate the drum 3 counterclockwise, the B storage space is located at the position of the previous A storage space, and then the above operation can be repeated to store the sand grains of another specification in the B storage space. Subsequently, by continuing to rotate the drum 3, the other two specifications of sand grains can be stored in turn, respectively. The sand is stored in the C and D storage spaces. Both the No. 1 motor 21 and the No. 2 motor 5 are servo motors. When the sand needs to be discharged into the sand planting machine body 1, for example, when the sand in the A storage space needs to be discharged into the sand planting machine body 1, the No. 1 motor 21 can be started to drive the drum 3 to rotate, so that the discharge port on the A storage space corresponds to the connection between the discharge pipe 22 and the round shell 2, and then the No. 1 hydraulic rod 24 is started to drive the push rod 25 to move upward. After the push rod 25 is inserted into the discharge port on the A storage space, the sand can be discharged into the sand planting machine body 1. After the sealing plate 34 is pushed upward to shrink the telescopic end of the telescopic rod 33, the discharge port can be opened to allow the sand in the storage space A to enter the discharge pipe 22 and then be discharged into the sand planting machine body 1; when different types of coated abrasives are subsequently processed, the No. 1 motor 21 can be started to rotate the drum 3, so that the discharge port on the storage space storing the sand of the required specifications corresponds to the connection between the discharge pipe 22 and the round shell 2, and the above operation is repeated to complete the discharge of the sand in the storage space.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A sand material feeding device for an electrostatic sand planting machine, comprising a sand planting machine body (1), characterized in that: A round shell (2) is provided above the sand-planting machine body (1); the bottom of the round shell (2) is connected to a feed pipe (22) connected to the top of the sand-planting machine body (1); a push rod (25) is provided in the feed pipe (22); a hydraulic rod (24) for driving the push rod (25) to move up and down is provided on the round shell (2); a rotating drum (3) is rotatably connected in the round shell (2); a fixing rod (31) is fixed at the axis of the rotating drum (3); a group of partitions (31) for dividing the interior of the rotating drum (3) into a plurality of storage spaces are fixed on the fixing rod (31). 32), a group of discharge ports respectively connected to a plurality of storage spaces are provided on the outer ring surface of the rotating drum (3), a telescopic rod (33) connected to the fixed rod (31) is provided in the storage space inside the rotating drum (3), and a sealing plate (34) for sealing the discharge port is fixed to the telescopic end of the telescopic rod (33); the top of the circular shell (2) is connected to the hopper (4), and a second hydraulic rod (42) for pushing the sealing plate (34) is provided in the hopper (4); and a first motor (21) for driving the rotating drum (3) to rotate is provided on the circular shell (2).
2. The sand feeding device for an electrostatic sand planting machine according to claim 1, characterized in that: An opening (23) is provided on one side of the discharge pipe (22), and a push rod (25) is arranged in an L shape. One end of the push rod (25) passes through the opening (23) and is fixed to the telescopic end of the No. 1 hydraulic rod (24), and the fixed end of the No. 1 hydraulic rod (24) is fixed to the circular shell (2); two baffles (26) are fixed on the push rod (25) and are symmetrically distributed in the upper and lower directions and in contact with the inner wall of the discharge pipe (22), and the baffle (26) located on the upper side corresponds to the opening (23).
3. The sand feeding device for an electrostatic sand planting machine according to claim 1, characterized in that: A fixing ring (36) is fixed on the fixed end of the telescopic rod (33), a folding tube (37) is fixed between the fixing ring (36) and the sealing plate (34), and the telescopic end of the telescopic rod (33) is located in the folding tube (37).
4. The sand feeding device for an electrostatic sand planting machine according to claim 1, characterized in that: A trapezoidal block (35) inserted into the upper discharge port of the rotating drum (3) is fixed on the side of the sealing plate (34) away from the telescopic rod (33), and the side of the sealing plate (34) close to the telescopic rod (33) is arranged in an arc shape.
5. The sand feeding device for an electrostatic sand planting machine according to claim 1, characterized in that: A fixed beam (41) with an arc-shaped top surface is fixed in the hopper (4), the fixed end of the second hydraulic rod (42) is fixed to the bottom of the fixed beam (41), and a push rod (43) is fixed to the telescopic end of the second hydraulic rod (42).
6. The sand material feeding device for an electrostatic sand planting machine according to claim 1, characterized in that: A second motor (5) is fixed to one side of the hopper (4), a column (51) is fixed to the rotating shaft of the second motor (5), a group of cross bars (52) distributed in a circular array are fixed to the outer ring surface of the column (51), a movable ring (53) is fixed to the other end of the cross bar (52), one movable ring (53) is located directly above the hopper (4), and a detachable filter screen (7) is provided in the movable ring (53).
7. The sand feeding device for an electrostatic sand planting machine according to claim 6, characterized in that: A carrying ring (6) is fixed on the inner wall of the movable ring (53), a positioning rod (61) is fixed on the top of the carrying ring (6), a positioning hole for the positioning rod (61) to pass through is opened on the filter screen (7), and a pull rod (71) is fixed on the top of the filter screen (7).