Varistor sand filling machine
By using the screening outer cylinder and inner cylinder and vibration mechanism driven by a biaxial bidirectional motor in the varistor sand filling machine, the sand particle diameter in the existing technology is solved by using the screening outer cylinder and inner cylinder and vibration mechanism driven by a biaxial bidirectional motor. The gaps or hollow problems caused by unevenness achieve better sand filling effect.
Patent Information
- Application Number
- CN202411463185.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2044-10-21
AI Technical Summary
The existing varistor sand filling machines fail to carefully screen the particle size of the sand during sand filling, resulting in the sand being unable to fill evenly and closely within the varistor, and there are gaps or holes, which affects the sand filling effect.
A varistor sand filling machine including a screening and a screening and sand filling part is designed. The outer and inner cylinders of the screening driven by a biaxial bidirectional motor are combined with the reciprocating mechanism and vibration mechanism to fully screen the sand. Divide and break, remove parts that do not meet the particle size requirements, and fill the sand evenly through extrusion.
The particle size uniformity and tight filling of the sand are achieved, avoiding the occurrence of gaps or voids after sand filling, and improving the sand filling effect.
Smart Images
Figure CN118983157B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of varistor sand filling, in particular to a varistor sand filling machine. Background Art
[0002] A varistor is a resistor device used to limit overvoltage in a circuit and absorb excess current in the circuit. It is mainly used to protect sensitive devices in the circuit. When manufacturing a varistor, a sand filling machine is usually used to fill it with sand to protect the varistor and prevent it from overheating and damage during operation.
[0003] When the existing sand filling machine is filling the varistor with sand, the particle size of the sand is not carefully screened, so that there will be sand of various different particle sizes in the sand poured into the varistor. Moreover, due to the high sensitivity of the varistor, there will be certain requirements on the particle size of the sand filled therein. Moreover, the sand in the existing sand filling machine usually enters the varistor in an automatic falling manner, and the sand is not pressurized during the sand filling, so that the sand in the varistor cannot be evenly and tightly filled in the varistor, and there will be certain gaps or voids in the sand, and the sand filling effect is not good. Therefore, it is urgent to design a varistor sand filling machine to solve the above problems. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides a varistor sand filling machine, which solves the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a varistor sand filling machine, comprising a sand filling host and a varistor to be filled with sand;
[0006] The impurity removal and screening part is used to remove stones from the sand and preliminarily screen the sand. The impurity removal and screening part includes a double-axis bidirectional motor fixedly installed in the sand filling main machine through a fixed plate, and a screening outer cylinder is rotatably installed in the sand filling main machine through a bearing plate, and a screening inner cylinder is fixedly installed on the upper driving shaft of the double-axis bidirectional motor, and the screening inner cylinder is located in the screening outer cylinder, and a reciprocating mechanism is installed between the screening inner cylinder and the screening outer cylinder, and a feeding and discharging mechanism is installed on the screening inner cylinder;
[0007] The screening and sand filling part is used for secondary screening of sand and filling of varistor with sand, and a sand filling mechanism is installed between the storage box and the sand filling pipe, an air induced mechanism is installed between the storage box and the dual-axis bidirectional motor, a vibration mechanism is installed in the storage box, a mounting frame is fixedly installed at the lower part of the sand filling main machine, and a positioning mechanism for positioning the varistor is installed on the mounting frame.
[0008] Preferably, the reciprocating mechanism comprises a driven shaft rotatably mounted on a fixed disk, and a transmission belt is sleeved between the driven shaft and the upper driving shaft of the double-shaft bidirectional motor, a spur gear is fixedly mounted on the driven shaft, and a steering outer gear ring matched with the spur gear is fixedly mounted on the screening outer cylinder;
[0009] A driving structure is installed between the screening inner cylinder and the screening outer cylinder.
[0010] Preferably, the driving structure includes a push rod fixedly mounted on the outer wall of the screening inner cylinder, a driven rubber plate matching the push rod is fixedly mounted on the inner wall of the screening outer cylinder, a driven rod is fixedly mounted on the steering outer gear ring, and a limit lever matching the driven rod is fixedly mounted on the inner wall of the sand filling main machine.
[0011] Preferably, the feeding and discharging mechanism includes a sand feeding pipe fixedly mounted on the sand filling main machine, the lower end of the sand feeding pipe is located in the screening inner cylinder, and the screening inner cylinder and the screening outer cylinder are rotatably connected to the sand feeding pipe, a lower sand pipe is fixedly connected between the carrying plate and the storage box, and a sand discharge pipe is fixedly connected to the screening inner cylinder and the screening outer cylinder.
[0012] Preferably, the air induced mechanism includes an air collecting hood fixedly mounted on the lower part of the fixed plate, an air induced impeller is fixedly mounted on the lower driving shaft of the dual-axis bidirectional motor, and the air induced impeller is located in the air collecting hood, and an air blowing pipe is fixedly connected between the air collecting hood and the storage box.
[0013] Preferably, the vibration mechanism comprises a vibration motor arranged in the storage box, a screening filter plate is fixedly mounted on the vibration motor, and the side of the screening filter plate is in contact with the inner wall of the storage box, a sand return pipe is fixedly connected between the storage box and the sand inlet pipe, and the sand return pipe is located at the lower part of the screening filter plate;
[0014] A swing structure is installed in the storage box.
[0015] Preferably, the swing structure includes a rotating rod rotatably installed in the storage box, a plurality of breaking wheels are fixedly installed on the rotating rod, and a heating plate is fixedly installed on each breaking wheel, a pneumatic impeller is fixedly installed in the middle of the rotating rod, and the pneumatic impeller cooperates with the blowing pipe.
[0016] Preferably, the sand filling mechanism includes a sand pressure plate slidably installed in the sand filling pipe, an electric sand blocking door is provided at the lower part of the sand filling pipe, a compressed air pipe is fixedly connected between the wind collecting hood and the sand filling pipe, and the lower end of the compressed air pipe is located at the upper part of the sand pressure plate, and a sand guiding structure is installed between the storage box and the sand filling pipe.
[0017] Preferably, the sand guiding structure includes a return spring fixedly installed on the top wall of the sand pressing tray and the sand filling pipe, a telescopic sand guiding pipe is fixedly connected between the screening filter plate and the sand pressing tray, and the upper end of the telescopic sand guiding pipe is fixedly connected to a sand suction pipe, the sand suction pipe is fixedly connected to an exhaust pipe, and the exhaust pipe is located at the upper part of the sand pressing tray in the sand filling pipe.
[0018] Preferably, the positioning mechanism includes a plurality of extrusion springs fixedly mounted on a mounting frame, a positioning clamping plate is fixedly mounted on two of the extrusion springs, a plurality of rubber strips are fixedly mounted on the inner sides of the two positioning clamping plates, and a control handle is fixedly mounted on the outer sides of the two positioning clamping plates.
[0019] The present invention provides a varistor sand filling machine. It has the following beneficial effects:
[0020] 1. When the sand filling machine is filling the varistor with sand, it can screen the sand more comprehensively and thoroughly by adopting the method of internal rotation to screen the sand and driving the external reciprocating swing to impact the sand screening, and can effectively break up the clumped parts in the sand, so that the stones and large-volume particles in the sand can be effectively screened out before filling the sand, which can effectively prevent large-volume sand from entering the varistor.
[0021] 2. When the sand filling machine is filling the varistor with sand, the scattering wheel is driven by air blast to rotate and the screening filter plate is vibrated. The screened sand can be fully lifted up in the storage box and fully contact and collide with the scattering wheel and the screening filter plate. The sand can be fully contacted with the screening filter plate to remove the smaller parts of the sand that do not meet the particle size requirements. The sand can also be fully dried during the impact and vibration process to prevent moisture in the sand from entering the varistor during sand filling.
[0022] 3. When this sand filling machine is filling the varistor with sand, the side double-sided extrusion clamping method can be used to quickly and stably position the varistor, so that it remains stable when filling with sand. The sand can be pressed evenly and smoothly into the varistor by adopting the upper uniform extrusion method, so that the sand entering the varistor is filled and squeezed more tightly, avoiding gaps or voids between the sand in the varistor after filling.
[0023] In summary, the present invention can effectively screen the sand by adopting the screening method of positive and negative rotating screening impact and breaking wheel rotating impact in combination with the screening filter plate vibration, and can remove the part of the sand that does not meet the particle size requirements, so that the particle size of the sand entering the varistor is roughly the same, and by adopting the upper uniform extrusion method, the sand can be pressed into the varistor evenly and smoothly, so that the sand entering the varistor can be filled and squeezed more tightly, avoiding the formation of gaps or voids between the sand in the varistor after filling with sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:
[0025] Figure 1 This is a schematic diagram of the structure of the varistor sand filling machine proposed by the present invention;
[0026] Figure 2 for Figure 1 A top view of
[0027] Figure 3 for Figure 2 A cross-sectional view of the middle AA;
[0028] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure;
[0029] Figure 5 This is a schematic diagram of the internal structure of the sand filling host;
[0030] Figure 6 for Figure 5 Schematic diagram of the upper structure of the middle screening outer cylinder and the fixed plate;
[0031] Figure 7 for Figure 6 A top view of the upper structure of the middle screening outer cylinder;
[0032] Figure 8 for Figure 7 A cross-sectional view of the middle BB;
[0033] Fig. 9 for Figure 8 Schematic diagram of the three-dimensional structure;
[0034] Fig.10 The middle is a schematic diagram of the upper structure of the sand filling pipe and storage box;
[0035] Fig.11 for Fig.10 A schematic diagram of the internal structure of the central dual-axis bidirectional motor and the storage box in the positive direction;
[0036] Fig.12 for Fig.10 Schematic diagram of the internal structure of the middle storage box and the sand filling pipe from the side;
[0037] Fig.13 for Fig.10 Schematic diagram of the structural decomposition.
[0038] In the figure: 1 sand filling main machine, 2 sand inlet pipe, 3 mounting frame, 4 sand filling pipe, 5 varistor, 6 positioning splint, 7 screening outer cylinder, 8 screening inner cylinder, 9 bearing plate, 10 fixing plate, 11 double-axis bidirectional motor, 12 storage box, 13 driven shaft, 14 transmission belt, 15 sand return pipe, 16 lower sand pipe, 17 telescopic sand guide pipe, 18 return spur gear, 19 steering outer gear ring, 20 driven rod, 21 limit stop rod, 22 push rod, 23 driven rubber plate, 24 wind collecting hood, 25 compressed air pipe, 26 induced draft impeller, 27 sand suction pipe, 28 rotating rod, 29 breaking wheel, 30 reset spring, 31 screening filter plate, 32 blowing pipe, 33 electric sand blocking door, 34 sand pressing plate, 35 vibration motor, 36 pneumatic impeller, 37 exhaust pipe. DETAILED DESCRIPTION
[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0040] Reference Figure 1-Figure 9 The varistor sand filling machine comprises a sand filling main machine 1 and a varistor 5 to be filled with sand, and a impurity removal and screening part, which is used to remove stones in the sand and preliminarily screen the sand, so as to remove the part with larger particle size in the sand and avoid the sand with larger particle size from being poured into the varistor 5.
[0041] In a further embodiment, the impurity removal and screening section includes a double-shaft bidirectional motor 11 fixedly mounted in the sand filling main machine 1 through a fixed plate 10, and an upper drive shaft and a lower drive shaft are arranged on the double-shaft bidirectional motor 11, and the upper drive shaft and the lower drive shaft can rotate together or independently;
[0042] A screening outer cylinder 7 is rotatably installed in the sand filling main machine 1 through a bearing plate 9, a screening inner cylinder 8 is fixedly installed on the upper driving shaft of the double-shaft bidirectional motor 11, and the screening inner cylinder 8 is located in the screening outer cylinder 7, and a feeding and discharging mechanism is installed on the screening inner cylinder 8, and the feeding and discharging mechanism includes a sand inlet pipe 2 fixedly installed on the sand filling main machine 1, the lower end of the sand inlet pipe 2 is located in the screening inner cylinder 8, and the screening inner cylinder 8 and the screening outer cylinder 7 are both rotatably connected to the sand inlet pipe 2, a lower sand pipe 16 is fixedly connected between the bearing plate 9 and the storage box 12, and a sand discharge pipe is fixedly connected to the screening inner cylinder 8 and the screening outer cylinder 7, and the sand discharge pipe is used to export and collect the stones and large-volume sand accumulated in the screening inner cylinder 8 and the screening outer cylinder 7 after screening;
[0043] The sand to be screened enters the screening inner cylinder 8 through the sand inlet pipe 2, and after being screened by the screening inner cylinder 8, it will fall into the screening outer cylinder 7, and the screening outer cylinder 7 will screen the sand again. After screening, the sand that meets the requirements will fall onto the carrying plate 9 and will be discharged through the sand discharge pipe 16.
[0044] In a further embodiment, a reciprocating mechanism is installed between the screening inner cylinder 8 and the screening outer cylinder 7, the reciprocating mechanism includes a driven shaft 13 rotatably installed on the fixed plate 10, and a transmission belt 14 is sleeved between the driven shaft 13 and the upper driving shaft of the double-shaft bidirectional motor 11, a spur gear 18 is fixedly installed on the driven shaft 13, and a steering outer gear ring 19 matched with the spur gear 18 is fixedly installed on the screening outer cylinder 7;
[0045] When the upper driving shaft of the dual-axis bidirectional motor 11 rotates, it will drive the screening inner cylinder 8 to rotate directly, so that the sand in the screening inner cylinder 8 can be rotated and screened at high speed, so that the gravel and the larger part of the sand will be left in the screening inner cylinder 8, while the relatively small sand will pass through the screening inner cylinder 8 into the screening outer cylinder 7.
[0046] A driving structure is installed between the screening inner cylinder 8 and the screening outer cylinder 7, and the driving structure includes a push rod 22 fixedly installed on the outer wall of the screening inner cylinder 8, a driven rubber plate 23 matched with the push rod 22 is fixedly installed on the inner wall of the screening outer cylinder 7, a driven rod 20 is fixedly installed on the steering outer gear ring 19, and a limit stopper rod 21 matched with the driven rod 20 is fixedly installed on the inner wall of the sand filling main machine 1;
[0047] When the upper driving shaft of the dual-axis bidirectional motor 11 rotates, it will drive the driven shaft 13 to rotate with the cooperation of the transmission belt 14, thereby driving the spur gear 18 on the driven shaft 13 to rotate. When the screening inner cylinder 8 rotates, it will drive the push rod 22 thereon to rotate. The push rod 22 rotates and contacts with the driven rubber plate 23, thereby pushing the driven rubber plate 23 to rotate forward during the rotation process. The driven rubber plate 23 rotates forward, which will drive the screening outer cylinder 7 and the steering outer gear ring 19 to rotate.
[0048] When the driven rod 20 on the steering outer gear ring 19 is driven to contact the limit stop rod 21 on the sand filling main machine 1, the limit stop rod 21 will limit the driven rod 20 so that it cannot rotate forward, and the screening outer cylinder 7 cannot continue to rotate. At this time, the push rod 22 will squeeze the driven rubber plate 23 to compress it when it continues to rotate, so that the push rod 22 will leave the driven rubber plate 23 and continue to rotate until it contacts the driven rubber plate 23 again after one circle. When the screening outer cylinder 7 rotates forward to the maximum position and cannot rotate, the steering outer gear on it The ring 19 will contact and mesh with the spur gear 18. At this time, when the spur gear 18 rotates, it will drive the steering outer gear ring 19 to rotate in the opposite direction, thereby driving the screening outer cylinder 7 to rotate in the opposite direction and return to its original position. Repeating the above process can realize the reciprocating positive and negative rotation of the screening outer cylinder 7 at a certain angle, so that the sand in the screening outer cylinder 7 can fall when it stops and hit the inner wall of the screening outer cylinder 7 under the action of centrifugal force when it rotates, which can not only realize the re-screening of the sand, but also break up the clumping part of the sand under the action of the impact, thereby further accelerating the screening effect.
[0049] Reference Figure 1-Figure 5 as well as Figure 1-Figure 13 , screening and sand filling part, the screening and sand filling part is used for secondary screening of sand and filling the varistor 5 with sand;
[0050] The screening and sand filling part includes a storage box 12 and a sand filling pipe 4 fixedly installed in the sand filling main machine 1. An air induced mechanism is installed between the storage box 12 and the double-shaft bidirectional motor 11. The air induced mechanism includes an air collecting hood 24 fixedly installed at the lower part of the fixed plate 10. An air induced impeller 26 is fixedly installed on the lower driving shaft of the double-shaft bidirectional motor 11, and the air induced impeller 26 is located in the air collecting hood 24. An air blowing pipe 32 is fixedly connected between the air collecting hood 24 and the storage box 12.
[0051] The sand falling through the lower sand pipe 16 will enter the storage box 12. At this time, the lower driving shaft of the dual-axis bidirectional motor 11 will start to drive the induced draft impeller 26 to rotate. The rotation of the induced draft impeller 26 will generate wind in the wind collecting cover 24 and blow it into the storage box 12 through the blowing pipe 32, which will blow the sand in the storage box 12, which can make the sand turn over in the storage box 12 to increase its fluidity and blow away the moisture in the sand while blowing.
[0052] In a further embodiment, a swing structure is installed in the storage box 12, and the swing structure includes a rotating rod 28 rotatably installed in the storage box 12, a plurality of scattering wheels 29 are fixedly installed on the rotating rod 28, and a heating plate is fixedly installed on each scattering wheel 29, and a pneumatic impeller 36 is fixedly installed in the middle of the rotating rod 28, and the pneumatic impeller 36 cooperates with the blowing pipe 32;
[0053] The wind flow blown out through the blowing pipe 32 will impact the pneumatic impeller 36 to make it rotate, which can drive the rotating rod 28 and the multiple scattering wheels 29 thereon to rotate. When the scattering wheels 29 rotate, they will come into contact with the overturned sand, thereby scattering the sand, thereby preventing it from clumping and making it easier to screen. When the scattering wheels 29 rotate, the heating plate will start to heat and dry the sand, further removing moisture from the sand.
[0054] In a further embodiment, a vibration mechanism is installed in the storage box 12, and the vibration mechanism includes a vibration motor 35 arranged in the storage box 12, a screening filter plate 31 is fixedly installed on the vibration motor 35, and the side of the screening filter plate 31 is in contact with the inner wall of the storage box 12, and a return sand pipe 15 is fixedly connected between the storage box 12 and the sand inlet pipe 2, and the return sand pipe 15 is located at the lower part of the screening filter plate 31;
[0055] The screening filter plate 31 is used to screen the sand. When the vibration motor 35 is started, the screening filter plate 31 will be driven to vibrate back and forth, so that the sand on the screening filter plate 31 can be shaken back and forth, making the filtering and screening efficiency higher. The sand with a smaller volume that does not meet the sand filling requirements will fall to the bottom of the storage box 12 through the screening filter plate 31. Due to the continuous air intake in the storage box 12, the air and moisture in the storage box 12 will be discharged upward through the sand return pipe 15 to the sand inlet pipe 2, and the sand with a smaller volume at the bottom of the storage box 12 will be taken away while exhausting. The relatively larger part of the sand will accumulate on the upper part of the screening filter plate 31, and the sand in this part is qualified sand that meets the sand filling requirements.
[0056] In a further embodiment, a mounting frame 3 is fixedly installed at the lower part of the sand filling main machine 1, and a positioning mechanism for positioning the varistor 5 is installed on the mounting frame 3, and the positioning mechanism includes a plurality of extrusion springs fixedly installed on the mounting frame 3, and a positioning clamping plate 6 is fixedly installed on two extrusion springs, and a plurality of rubber strips are fixedly installed on the inner sides of the two positioning clamping plates 6, and a control handle is fixedly installed on the outer sides of the two positioning clamping plates 6;
[0057] When filling with sand, hold the two control handles to pull the two positioning clamps 6 apart, and place the varistor 5 to be filled with sand between the two positioning clamps 6, and make the sand inlet end on it be at the bottom of the sand filling pipe 4, and then release the two control handles. At this time, the two positioning clamps 6 will move and squeeze the varistor 5 under the action of the corresponding extrusion springs, so that the varistor 5 can be clamped and positioned to keep it stable during sand filling.
[0058] In a further embodiment, a sand guide structure is installed between the storage box 12 and the sand filling pipe 4, and the sand guide structure includes a return spring 30 fixedly installed on the sand pressure tray 34 and the top wall of the sand filling pipe 4, and a telescopic sand guide pipe 17 is fixedly connected between the screening filter plate 31 and the sand pressure tray 34, and the upper end of the telescopic sand guide pipe 17 is fixedly connected to a sand suction pipe 27, and the sand suction pipe 27 is fixedly connected to an exhaust pipe 37, and the exhaust pipe 37 is located at the upper part of the sand pressure tray 34 in the sand filling pipe 4;
[0059] An electric sand-blocking gate 33 is provided at the lower part of the sand-filling pipe 4. After the sand screening is completed, the sand suction pipe 27 and the telescopic sand guide pipe 17 can be opened to allow the sand on the screening filter plate 31 to enter the upper part of the electric sand-blocking gate 33 in the sand-filling pipe 4 through the sand suction pipe 27 and the telescopic sand guide pipe 17 and gradually accumulate and store.
[0060] A sand filling mechanism is installed between the storage box 12 and the sand filling pipe 4, and the sand filling mechanism includes a sand pressing plate 34 slidably installed in the sand filling pipe 4, and a compressed air pipe 25 is fixedly connected between the wind collecting cover 24 and the sand filling pipe 4, and the lower end of the compressed air pipe 25 is located on the upper part of the sand pressing plate 34;
[0061] After a certain amount of sand is stored in the sand filling pipe 4, the electric sand blocking door 33 can be opened to allow the sand in the sand filling pipe 4 to fall into the varistor 5, and at the same time, the dual-axis bidirectional motor 11 is started to rotate its lower driving shaft to drive the induced draft impeller 26 to rotate to generate wind force, and the wind force airflow enters the upper part of the sand pressure tray 34 in the sand filling pipe 4 through the compressed air pipe 25. As the air gradually accumulates, the sand pressure tray 34 will be squeezed to move downward gradually, thereby squeezing the sand at the bottom of the sand pressure tray 34 to be constantly and evenly pressed down into the varistor 5, so that a uniform downward pressure is applied to the sand during sand filling so that it can smoothly enter the varistor 5, so that the sand in the varistor 5 is filled more tightly, which can effectively avoid the formation of gaps or voids in the sand. When the sand in the sand filling pipe 4 is filled, the sand filling work is completed.
[0062] After the sand filling is closed, the exhaust pipe 37 on the telescopic sand guide tube 17 can be opened to discharge the air filled on the sand pressing plate 34 into the storage box 12 through the exhaust pipe 37 and the telescopic sand guide tube 17, so that the sand pressing plate 34 is moved up and reset under the action of the reset spring 30, so as to facilitate the sand filling work again.
[0063] The specific steps of the sand filling process of the varistor 5 by the sand filling machine are as follows:
[0064] Sand screening: The sand to be screened enters the screening inner cylinder 8 through the sand inlet pipe 2, and after being screened by the screening inner cylinder 8, it will fall into the screening outer cylinder 7, and the screening outer cylinder 7 will screen the sand again. After screening, the sand that meets the requirements will fall onto the carrying plate 9 and will be discharged through the sand discharge pipe 16. When the upper driving shaft of the double-axis bidirectional motor 11 rotates, it will drive the screening inner cylinder 8 to rotate directly, so that the sand in the screening inner cylinder 8 can be rotated and screened at high speed, so that the stones and larger parts in the sand can be separated. The sand that remains in the screening inner cylinder 8 and the relatively small sand therein will enter the screening outer cylinder 7 through the screening inner cylinder 8. The rotation of the screening inner cylinder 8 will drive the screening outer cylinder 7 to rotate back and forth in a certain angle in the cooperation of the reciprocating mechanism, so that the sand in the screening outer cylinder 7 will fall when it stops and will hit the inner wall of the screening outer cylinder 7 under the action of centrifugal force when it rotates, which can not only realize the re-screening of the sand, but also break up the agglomerated parts of the sand under the action of the impact, thereby further accelerating the screening effect.
[0065] After screening by the screening outer cylinder 7, the sand that meets the requirements will fall onto the carrying plate 9, and will be discharged through the sand discharge pipe 16. The sand that falls through the sand discharge pipe 16 will enter the storage box 12. At this time, the lower driving shaft of the double-axis bidirectional motor 11 will start to drive the induced draft impeller 26 to rotate. The rotation of the induced draft impeller 26 will generate wind in the wind collecting cover 24 and blow it into the storage box 12 through the blowing pipe 32, that is, the sand in the storage box 12 will be blown up, which can not only make the sand in the storage box 12 turn over to increase its fluidity, but also blow away the moisture in the sand while blowing.
[0066] The wind flow blown out by the blowing pipe 32 will impact the pneumatic impeller 36 to make it rotate, which can drive the rotating rod 28 and the multiple scattering wheels 29 thereon to rotate. When the scattering wheels 29 rotate, they will contact the overturned sand, thereby scattering the sand, thereby preventing it from agglomerating and making it easier to screen. When the scattering wheels 29 rotate, the heating plate will start to heat and dry the sand, further removing moisture from the sand.
[0067] The screening filter plate 31 is used to screen the sand. When the vibration motor 35 is started, the screening filter plate 31 will be driven to vibrate back and forth, so that the sand on the screening filter plate 31 can be shaken back and forth, making the filtering and screening efficiency higher. The sand with a smaller volume that does not meet the sand filling requirements will fall to the bottom of the storage box 12 through the screening filter plate 31. Due to the continuous air intake in the storage box 12, the air and moisture in the storage box 12 will be discharged upward through the sand return pipe 15 to the sand inlet pipe 2, and the sand with a smaller volume at the bottom of the storage box 12 will be taken away while exhausting. The relatively larger part of the sand will accumulate on the upper part of the screening filter plate 31, and the sand in this part is qualified sand that meets the sand filling requirements.
[0068] Filling the varistor 5 with sand: When filling the sand, hold the two control handles to pull the two positioning clamps 6 apart, and place the varistor 5 to be filled with sand between the two positioning clamps 6, and make the sand inlet end on it be at the bottom of the sand filling pipe 4, and then release the two control handles. At this time, the two positioning clamps 6 will move and squeeze the varistor 5 under the action of the corresponding extrusion springs, so that the varistor 5 can be clamped and positioned to keep it stable during sand filling;
[0069] After the sand screening is completed, the sand suction pipe 27 and the telescopic sand guide pipe 17 can be opened to allow the sand on the screening filter plate 31 to enter the upper part of the electric sand blocking gate 33 in the sand filling pipe 4 through the sand suction pipe 27 and the telescopic sand guide pipe 17 and gradually accumulate and store;
[0070] After a certain amount of sand is stored in the sand filling pipe 4, the electric sand blocking gate 33 can be opened to allow the sand in the sand filling pipe 4 to fall into the varistor 5, and at the same time, the dual-axis bidirectional motor 11 is started to rotate its lower driving shaft to drive the induced draft impeller 26 to rotate to generate wind force, and the wind force airflow enters the upper part of the sand pressure tray 34 in the sand filling pipe 4 through the compressed air pipe 25. As the air gradually accumulates, the sand pressure tray 34 will be squeezed to move downward gradually, thereby squeezing the sand at the bottom of the sand pressure tray 34 to press it down constantly and evenly into the varistor 5, thereby exerting downward pressure on the sand to make it enter the varistor 5 and fill it more tightly, avoiding the formation of gaps or voids. The filling of sand in the sand filling pipe 4 is completed, and the sand filling work is completed.
[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. Varistor sand filling machine, characterized in that, It comprises a sand filling host (1) and a varistor (5) to be filled with sand; The impurity removal and screening section is used to remove stones from the sand and perform preliminary screening on the sand. The impurity removal and screening section comprises a double-shaft bidirectional motor (11) fixedly mounted in a sand filling main machine (1) via a fixed plate (10), a screening outer cylinder (7) being rotatably mounted in the sand filling main machine (1) via a bearing plate (9), a screening inner cylinder (8) being fixedly mounted on an upper drive shaft of the double-shaft bidirectional motor (11), the screening inner cylinder (8) being located in the screening outer cylinder (7), a reciprocating mechanism being mounted between the screening inner cylinder (8) and the screening outer cylinder (7), and a material feeding and discharging mechanism being mounted on the screening inner cylinder (8); The screening sand filling section is used for secondary screening of sand and filling the varistor (5) with sand. The screening sand filling section comprises a storage box (12) and a sand filling pipe (4) fixedly installed in the sand filling main machine (1), and a sand filling mechanism is installed between the storage box (12) and the sand filling pipe (4). An air induction mechanism is installed between the storage box (12) and the double-axis bidirectional motor (11). A vibration mechanism is installed in the storage box (12). A mounting frame (3) is fixedly installed at the bottom of the sand filling main machine (1), and a positioning mechanism for positioning the varistor (5) is installed on the mounting frame (3).
2. The varistor sand filling machine according to claim 1, characterized in that: The reciprocating mechanism comprises a driven shaft (13) rotatably mounted on a fixed plate (10), a transmission belt (14) being sleeved between the driven shaft (13) and an upper drive shaft of a double-shaft bidirectional motor (11), a spur gear (18) being fixedly mounted on the driven shaft (13), and a steering outer gear ring (19) matching the spur gear (18) being fixedly mounted on the screening outer cylinder (7); A driving structure is installed between the screening inner cylinder (8) and the screening outer cylinder (7).
3. The varistor sand filling machine according to claim 2, characterized in that: The driving structure comprises a push rod (22) fixedly mounted on the outer wall of the screening inner cylinder (8), a driven rubber plate (23) matched with the push rod (22) fixedly mounted on the inner wall of the screening outer cylinder (7), a driven rod (20) fixedly mounted on the steering outer gear ring (19), and a limit stop rod (21) matched with the driven rod (20) fixedly mounted on the inner wall of the sand filling main machine (1).
4. The varistor sand filling machine according to claim 1, characterized in that: The material inlet and outlet mechanism comprises a sand inlet pipe (2) fixedly mounted on the sand filling main machine (1), the lower end of the sand inlet pipe (2) being located in a screening inner cylinder (8), and the screening inner cylinder (8) and the screening outer cylinder (7) being rotatably connected to the sand inlet pipe (2), a lower sand pipe (16) being fixedly connected between the carrier plate (9) and the storage box (12), and a sand discharge pipe being fixedly connected to the screening inner cylinder (8) and the screening outer cylinder (7).
5. The varistor sand filling machine according to claim 4, characterized in that: The air induced mechanism comprises an air collecting hood (24) fixedly mounted on the lower part of the fixed plate (10); an air induced impeller (26) is fixedly mounted on the lower driving shaft of the dual-axis bidirectional motor (11); the air induced impeller (26) is located in the air collecting hood (24); and an air blowing pipe (32) is fixedly connected between the air collecting hood (24) and the storage box (12).
6. The varistor sand filling machine according to claim 5, characterized in that: The vibration mechanism comprises a vibration motor (35) arranged in the storage box (12), a screening filter plate (31) is fixedly mounted on the vibration motor (35), and the side of the screening filter plate (31) is in contact with the inner wall of the storage box (12), a sand return pipe (15) is fixedly connected between the storage box (12) and the sand inlet pipe (2), and the sand return pipe (15) is located at the bottom of the screening filter plate (31); A swing structure is installed in the storage box (12).
7. The varistor sand filling machine according to claim 6, characterized in that: The swing structure comprises a rotating rod (28) rotatably mounted in the storage box (12); a plurality of scattering wheels (29) are fixedly mounted on the rotating rod (28); a heating plate is fixedly mounted on each scattering wheel (29); a pneumatic impeller (36) is fixedly mounted in the middle of the rotating rod (28); and the pneumatic impeller (36) cooperates with the blowing pipe (32).
8. The varistor sand filling machine according to claim 7, characterized in that: The sand filling mechanism comprises a sand pressing plate (34) slidably mounted in a sand filling pipe (4); an electric sand blocking door (33) is arranged at the lower part of the sand filling pipe (4); a compressed air pipe (25) is fixedly connected between the wind collecting cover (24) and the sand filling pipe (4); and the lower end of the compressed air pipe (25) is located at the upper part of the sand pressing plate (34); and a sand guiding structure is installed between the storage box (12) and the sand filling pipe (4).
9. The varistor sand filling machine according to claim 8, characterized in that: The sand guiding structure comprises a return spring (30) fixedly mounted on the top wall of the sand pressing plate (34) and the sand filling pipe (4); a telescopic sand guiding pipe (17) is fixedly connected between the screening filter plate (31) and the sand pressing plate (34); a sand suction pipe (27) is fixedly connected to the upper end of the telescopic sand guiding pipe (17); an exhaust pipe (37) is fixedly connected to the sand suction pipe (27); and the exhaust pipe (37) is located at the upper part of the sand pressing plate (34) in the sand filling pipe (4).
10. The varistor sand filling machine according to claim 1, characterized in that: The positioning mechanism comprises a plurality of extrusion springs fixedly mounted on a mounting frame (3), a positioning clamping plate (6) being fixedly mounted on two of the extrusion springs, a plurality of rubber strips being fixedly mounted on the inner sides of the two positioning clamping plates (6), and a control handle being fixedly mounted on the outer sides of the two positioning clamping plates (6).