Cooling roller for precoated sand production

Abstract

The utility model relates to the technical field of precoated sand processing, and discloses a cooling roller for precoated sand production, which comprises a fixed roller, a support frame arranged at the bottom of the fixed roller, and a feeding cylinder arranged at the top of the fixed roller, the two ends of the first transmission shaft extend out of the two sides of the fixed roller correspondingly. The band-type brake servo motor drives the material turning plates to rotate synchronously through the first transmission shaft, then the rotating material turning plates turn over in a reciprocating mode to raise precoated sand in the fixed roller, the precoated sand can make full contact with air in the fixed roller, and meanwhile the precoated sand can be fully separated from the fixed roller. The first transmission shaft is in meshing transmission with the multiple meshing output components through the first transmission gear, so that the multiple meshing output components rotate to generate cooling air flow conveyed into the transition groove, and then the cooling air flow enters the fixed roller through the transition groove to conduct rapid air cooling on continuously raised precoated sand.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand processing, in particular to a cooling roller for coated sand production. Background Art

[0002] At present, in the process of preparing coated sand by the hot method of coating, a corresponding cooling device needs to be used for auxiliary production. As the prior art, the relevant technical content of the cooling device for coated sand production has already been in a public state. For example, the authorized patent with the application number 202122500690.5 proposes "a cooling roller for coated sand production of the present utility model, in which the roller rotates inside the sleeve by the cooperation of the rotating gear and the toothed ring, and the cooling water is circulated and discharged into the sleeve by the circulating pump, so that the cooling water flows on the surface of the roller, realizing the cooling of the roller. The cooled roller absorbs the heat of the coated sand, realizing the cooling of the coated sand. By blowing the coated sand inside the round groove by the fan, the residual heat inside the coated sand is discharged outwards. By combining water cooling and air cooling, the cooling speed of the coated sand is improved, and the production efficiency of the coated sand is effectively improved."

[0003] However, in actual processing, making the roller rotate actively to drive the raw materials to turn over places too much load on the transmission device and has a high use cost. Secondly, affected by gravity, during the rotation of the roller, the relative turning amplitude of the raw materials is not large, and most of them still remain within the bottom range of the roller, thus affecting the cooling efficiency. Finally, although water cooling is fast, subsequent auxiliary treatment for drying and dewatering the raw materials needs to be added, which further increases the processing production process. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a cooling roller for coated sand production, which solves the problems put forward in the above background art.

[0005] The utility model provides the following technical scheme: A cooling roller for coated sand production, including a fixed roller, a support frame installed at the bottom of the fixed roller, and a feeding cylinder installed at the top of the fixed roller. The middle inner side of the fixed roller is sleeved with a first transmission shaft through a bearing, and both ends of the first transmission shaft extend to the outside of both sides of the fixed roller. A plurality of turning plate parts movably sleeved inside the fixed roller are installed in the middle of the first transmission shaft;

[0006] One end of the first transmission shaft is drivingly connected with a brake servo motor. A transmission protection component is installed outside one side of the fixed roller. A first transmission gear and a meshing output component are movably sleeved inside the transmission protection component. The first transmission gear is meshed and connected with one end of the meshing output component, and the middle of the first transmission gear is fixedly connected with the end of the other end of the first transmission shaft. A transition groove located within the air output range of the meshing output component is opened on the side wall of one side of the fixed roller, and an anti-leakage filter screen is nested inside the transition groove;

[0007] A discharge trough is provided at the bottom of the fixed roller, and a self-sealing component for reciprocatingly opening and closing its own space is provided on the outer side of the bottom of the discharge trough. A sealing cover is externally threadedly connected to the port at the top of the feed cylinder, and a guide valve pipe is mounted on the rear end of the feed cylinder.

[0008] Selected, in order to ensure the stability of the brake servo motor during use, an auxiliary bracket located at the bottom of the brake servo motor is installed on the other side of the support frame, and a fixed seat is installed between the top of the auxiliary bracket and the bottom of the brake servo motor.

[0009] The guide valve tube is composed of a guide tube body and a regulating valve installed at one end of the guide tube body. A positioning bracket is installed between the surface of the guide tube body and the top surface of the fixed roller to improve the stability of the guide valve tube during use. One end of the guide tube body is sleeved inside the rear end of the feed barrel.

[0010] The transmission protection component includes a protective shell and a dust filter. A makeshift groove is provided on one side of the protective shell, and the dust filter is nested inside the makeshift groove, thereby providing a relatively closed transmission space and filtering dust from the air used for cooling. A boss is provided on the other side of the protective shell, and the boss is installed and fixed to the side surface of one side of the fixed drum by screws, which is convenient for subsequent reciprocating maintenance and disassembly.

[0011] The meshing output component comprises a second transmission shaft, fan blades and a second transmission gear. One end of the second transmission shaft is mounted inside one side of the fixed drum through a bearing sleeve, and the other end of the second transmission shaft is fixedly connected to the middle part of the second transmission gear. The second transmission gear is meshingly connected to the first transmission gear. The number of the fan blades is not less than two and they are equidistantly installed on the surface of the middle part of the second transmission shaft. The meshing output component synchronously receives the kinetic energy transmitted by the first transmission gear and the first transmission shaft, and generates kinetic energy that is output to the transition groove, thereby meeting the use effect of automatic cooling.

[0012] Preferably, the number of the meshing output components is not less than two, and the number of the transition grooves is the same as the number of the meshing output components, so as to ensure that sufficient cooling airflow is provided for cooling the coated sand.

[0013] Preferably, the self-sealing component comprises a sealing plate and an electric push rod, the output end of the electric push rod is transmission-connected to one side, and the sealing plate can seal the bottom space of the discharge trough under the transmission of the electric push rod.

[0014] Preferably, a support sleeve plate is clamped on the other side of the sealing plate, the top of the support sleeve plate is fixedly connected to the surface of the bottom of the fixed drum, and a connecting frame is installed between the surface of the housing of the electric push rod and the surface of the bottom of the fixed drum.

[0015] Preferably, the material turning plate member is composed of a turning frame plate and a ventilation filter screen nested inside the turning frame plate. The turning frame plate is fixedly connected to the surface of the middle part of the first transmission shaft. The material turning plate member is linked with the first transmission shaft. Subsequently, the raw materials inside the fixed drum are fully lifted, thereby accelerating the cooling speed. A temperature sensor is installed on the inner wall at the corner of the top of the fixed drum.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] 1. In the present utility model, the brake servo motor drives a plurality of material turning plate members to rotate synchronously through the first transmission shaft. Subsequently, the several rotating material turning plate members reciprocally turn and lift the coated sand inside the fixed drum, enabling the coated sand to fully contact the air inside the fixed drum. At the same time, the first transmission shaft drives a plurality of meshing output components to rotate through meshing with the first transmission gear, generating a cooling air flow that is directed into the transition groove. Subsequently, the cooling air flow enters the inside of the fixed drum through the transition groove, rapidly air-cooling the continuously lifted coated sand and further accelerating the cooling efficiency.

[0018] 2. The cooling drum proposed by the present utility model has relatively few rotating moving parts and is lightweight. Thus, while reducing the auxiliary load on power output and the usage cost, it still maintains an efficient cooling effect on the coated sand.

[0019] 3. The transmission cooling components such as the brake servo motor, the first transmission shaft, the material turning plate member, the meshing output component, and the first transmission gear proposed by the present utility model, in addition to meeting the cooling requirements of the coated sand, can also achieve turning discharging and pneumatic accelerating discharging during the discharging process of the coated sand, reducing the material residue inside the fixed drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic cross-sectional view of the structure of the present utility model;

[0021] Figure 2 is a right view schematic of the first transmission shaft of the structure of the present utility model;

[0022] Figure 3 is a front view schematic of the structure of the present utility model;

[0023] Figure 4 is a rear view schematic of the structure of the present utility model;

[0024] Figure 5 is the structure of the present utility modelFigure 1 The enlarged schematic diagram of point A in the middle;

[0025] Figure 6 The utility model structure Figure 1 A magnified schematic diagram of point B in the middle.

[0026] In the figure: 1. fixed roller; 2. supporting frame; 3. feeding cylinder; 4. first transmission shaft; 5. turning plate; 6. transmission protection component; 7. first transmission gear; 8. meshing output component; 81. second transmission shaft; 82. fan blade; 83. second transmission gear; 9. discharge chute; 10. self-sealing component; 101. sealing plate; 102. electric push rod; 11. brake servo motor; 12. guide valve pipe; 13. transition chute. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1-6 A cooling drum for coated sand production comprises a fixed drum 1, a support frame 2 installed at the bottom of the fixed drum 1, a feeding drum 3 installed at the top of the fixed drum 1, a first transmission shaft 4 is sleeved on the inner side of the middle of the fixed drum 1 through a bearing, and both ends of the first transmission shaft 4 extend to the outside of both sides of the fixed drum 1 respectively, and a plurality of turning plates 5 movably sleeved inside the fixed drum 1 are installed in the middle of the first transmission shaft 4;

[0029] The end of one end of the first transmission shaft 4 is connected to the brake servo motor 11. To ensure the stability of the brake servo motor 11 during use, an auxiliary bracket located at the bottom of the brake servo motor 11 is installed on the other side of the support frame 2, and a fixing seat is installed between the top of the auxiliary bracket and the bottom of the brake servo motor 11. A transmission protection component 6 is installed on the outside of one side of the fixed drum 1. The transmission protection component 6 includes a protective shell and a dust filter. A clearance groove is opened on one side of the protective shell, and the dust filter is nested in the clearance groove. In addition to providing a relatively closed transmission space, the air used for cooling is also filtered. A boss is provided on the other side of the protective shell, and the boss is fixed to the side of one side of the fixed drum 1 by screws, which is convenient for subsequent reciprocating maintenance and disassembly;

[0030] The transmission protection component 6 is internally movably sleeved with a first transmission gear 7 and a meshing output component 8, the first transmission gear 7 is meshedly connected with one end of the meshing output component 8, and the middle part of the first transmission gear 7 is fixedly connected with the end of the other end of the first transmission shaft 4, and a side wall on one side of the fixed drum 1 is provided with a transition groove 13 located within the air delivery range of the meshing output component 8, and a leak-proof filter is nested inside the transition groove 13;

[0031] The meshing output component 8 includes a second transmission shaft 81, a fan blade 82 and a second transmission gear 83. One end of the second transmission shaft 81 is sleeved inside one side of the fixed drum 1 through a bearing, and the other end of the second transmission shaft 81 is fixedly connected to the middle of the second transmission gear 83. The second transmission gear 83 is meshed with the first transmission gear 7. The number of fan blades 82 is not less than two and is equidistantly installed on the surface of the middle part of the second transmission shaft 81. The meshing output component 8 synchronously receives the kinetic energy transmitted by the first transmission gear 7 and the first transmission shaft 4, and generates kinetic energy to be transmitted to the transition groove 13, so as to meet the use effect of automatic cooling. The number of meshing output components 8 is not less than two and they are all meshed with the first transmission gear 7. The number of transition grooves 13 is the same as the number of meshing output components 8, so as to ensure that sufficient cooling airflow is put into the cooling process of the coated sand.

[0032] A discharge trough 9 is provided at the bottom of the fixed drum 1. A self-sealing component 10 for reciprocatingly opening and closing its own space is provided on the outer side of the bottom of the discharge trough 9. The self-sealing component 10 includes a sealing plate 101 and an electric push rod 102. The output end of the electric push rod 102 is transmission-connected to one side of the sealing plate 101. The sealing plate 101 can seal the bottom space of the discharge trough 9 under the transmission of the electric push rod 102. A support sleeve is clamped on the other side of the sealing plate 101. The top of the support sleeve is fixedly connected to the surface of the bottom of the fixed drum 1. A connecting frame is installed between the shell surface of the electric push rod 102 and the surface of the bottom of the fixed drum 1.

[0033] The port at the top of the feed barrel 3 is externally threadedly connected with a sealing cover, and the rear end of the feed barrel 3 is sleeved with a guide valve tube 12, which is composed of a guide tube body and a regulating valve installed at one end of the guide tube body. A positioning bracket is installed between the surface of the guide tube body and the top surface of the fixed roller 1 to improve the stability of the guide valve tube 12 during use, and one end of the guide tube body is sleeved inside the rear end of the feed barrel 3;

[0034] The flipping plate 5 is composed of a flipping frame and a ventilation filter nested in the flipping frame. The flipping frame is fixedly connected to the surface of the middle part of the first transmission shaft 4. The flipping plate 5 is linked with the first transmission shaft 4, and then the raw materials inside the fixed drum 1 are fully lifted, thereby accelerating the cooling speed. A temperature sensor is installed on the inner wall of the corners at the top of the fixed drum 1.

[0035] Working principle: Example 1:

[0036] Add the coated sand to be cooled into the inner part of the fixed drum 1 through the feeding cylinder 3, and then use the sealing cover to seal the top port of the feeding cylinder 3. Then, start the brake servo motor 11, and rotate and drive a plurality of turning plate parts 5 through the first transmission shaft 4 at the output end of the brake servo motor 11. Furthermore, use the plurality of rotating turning plate parts 5 to reciprocally turn up the coated sand inside the fixed drum 1, so that the coated sand can fully contact the air inside the fixed drum 1;

[0037] Meanwhile, the first transmission shaft 4 will also drive the first transmission gear 7, so that the first transmission gear 7 drives the second transmission gear 83 inside the meshing output component 8 to synchronously mesh and drive, and further drives the second transmission shaft 81 to drive a plurality of fan blades 82 to rotate to generate a cooling air flow directed into the inner part of the transition groove 13. Subsequently, the cooling air flow enters the inner part of the fixed drum 1 through the transition groove 13 to quickly air-cool the continuously turned-up coated sand. Then, open the regulating valve inside the diversion valve pipe 12 to discharge the hot air. In this way, repeat the process until the output temperature data of the temperature sensor reaches the specified stable value;

[0038] After the coated sand is cooled, place the collection container outside the bottom of the discharge chute 9, close the brake servo motor 11 and the electric push rod 102 inside the self-sealing component 10 that is in the open state. The output end of the electric push rod 102 will immediately drive the sealing plate 101 to reset and move, yielding the bottom space of the discharge chute 9. Then, the coated sand inside the fixed drum 1 enters the collection container through the discharge chute 9 under the action of gravity. Example 2:

[0039] Add the coated sand to be cooled into the inner part of the fixed drum 1 through the feeding cylinder 3, and then use the sealing cover to seal the top port of the feeding cylinder 3. Then, start the brake servo motor 11, and rotate and drive a plurality of turning plate parts 5 through the first transmission shaft 4 at the output end of the brake servo motor 11. Furthermore, use the plurality of rotating turning plate parts 5 to reciprocally turn up the coated sand inside the fixed drum 1, so that the coated sand can fully contact the air inside the fixed drum 1. Meanwhile, the first transmission shaft 4 will also drive the first transmission gear 7, so that the first transmission gear 7 drives the second transmission gear 83 inside the meshing output component 8 to synchronously mesh and drive, and further drives the second transmission shaft 81 to drive a plurality of fan blades 82 to rotate to generate a cooling air flow directed into the inner part of the transition groove 13. Subsequently, the cooling air flow enters the inner part of the fixed drum 1 through the transition groove 13 to quickly air-cool the continuously turned-up coated sand. Then, open the regulating valve inside the diversion valve pipe 12 to discharge the hot air. In this way, repeat the process until the output temperature data of the temperature sensor reaches the specified stable value;

[0040] For the rapid collection of the cooled coated sand, place the collection container outside the bottom of the discharge chute 9, close the electric push rod 102 in the open state inside the self-sealing component 10 and maintain the normal conveying of the brake servo motor 11, close the regulating valve of the diversion valve pipe 12, and then the output end of the electric push rod 102 drives the sealing plate 101 to move back to its original position, giving way to the bottom space of the discharge chute 9;

[0041] Meanwhile, the continuously rotating material turning plate member 5 and the airflow continuously input into the fixed drum 1 will both accelerate the coated sand inside the fixed drum 1 to enter the collection container through the discharge chute 9, improving the collection efficiency.

[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the filling patterns are only for distinguishing layers and are not subject to any other limitations.

[0043] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling drum for producing coated sand, comprising a fixed drum (1), a support frame (2) mounted at the bottom of the fixed drum (1), and a feed drum (3) mounted at the top of the fixed drum (1), characterized in that: A first transmission shaft (4) is sleeved on the inner side of the middle of the fixed roller (1) via a bearing sleeve, and both ends of the first transmission shaft (4) extend to the outside of both sides of the fixed roller (1) respectively, and a plurality of turning plates (5) movably sleeved inside the fixed roller (1) are installed in the middle of the first transmission shaft (4); The end of one end of the first transmission shaft (4) is transmission-connected to a brake servo motor (11); a transmission protection component (6) is installed on the outside of one side of the fixed drum (1); a first transmission gear (7) and a meshing output component (8) are movably sleeved inside the transmission protection component (6); the first transmission gear (7) is meshingly connected to one end of the meshing output component (8); and the middle part of the first transmission gear (7) is fixedly connected to the end of the other end of the first transmission shaft (4); a transition groove (13) is provided on the side wall of one side of the fixed drum (1) and is located within the air delivery range of the meshing output component (8); and a leak-proof filter is nested inside the transition groove (13); A discharge trough (9) is provided at the bottom of the fixed roller (1), and a self-sealing component (10) for reciprocatingly opening and closing its own space is provided on the outer side of the bottom of the discharge trough (9). A sealing cover is externally threadedly connected to the port at the top of the feed cylinder (3), and a guide valve pipe (12) is mounted at the rear end of the feed cylinder (3).

2. The cooling drum for producing coated sand according to claim 1, characterized in that: An auxiliary bracket located at the bottom of the brake servo motor (11) is installed on the other side of the support frame (2), and a fixing seat is installed between the top of the auxiliary bracket and the bottom of the brake servo motor (11).

3. The cooling drum for producing coated sand according to claim 1, characterized in that: The guide valve tube (12) is composed of a guide tube body and a regulating valve installed at one end of the guide tube body, a positioning bracket is installed between the surface of the guide tube body and the top surface of the fixed roller (1), and one end of the guide tube body is sleeved inside the rear end of the feed cylinder (3).

4. The cooling drum for producing coated sand according to claim 1, characterized in that: The transmission protection component (6) comprises a protection shell and a dust filter. A clearance groove is provided on one side of the protection shell, and the dust filter is nested in the clearance groove. A boss is provided on the other side of the protection shell, and the boss is fixed to the side surface of one side of the fixed roller (1) by screws.

5. The cooling drum for producing coated sand according to claim 1, characterized in that: The meshing output component (8) comprises a second transmission shaft (81), a fan blade (82) and a second transmission gear (83); one end of the second transmission shaft (81) is sleeved inside one side of the fixed drum (1) via a bearing; the other end of the second transmission shaft (81) is fixedly connected to the middle of the second transmission gear (83); the second transmission gear (83) is meshingly connected to the first transmission gear (7); and the number of the fan blades (82) is not less than two and they are equidistantly mounted on the surface of the middle of the second transmission shaft (81).

6. The cooling drum for producing coated sand according to claim 1, characterized in that: The number of the meshing output components (8) provided is not less than two, and the number of the transition grooves (13) provided is the same as the number of the meshing output components (8) provided.

7. The cooling drum for producing coated sand according to claim 1, characterized in that: The self-sealing component (10) comprises a sealing plate (101) and an electric push rod (102); an output end of the electric push rod (102) is drivingly connected to one side of the sealing plate (101); and the sealing plate (101) is capable of sealing the bottom space of the discharge chute (9) under the transmission of the electric push rod (102).

8. The cooling drum for producing coated sand according to claim 7, characterized in that: A support sleeve is clamped on the other side of the sealing plate (101), the top of the support sleeve is fixedly connected to the bottom surface of the fixed roller (1), and a connecting frame is installed between the shell surface of the electric push rod (102) and the bottom surface of the fixed roller (1).

9. The cooling drum for producing coated sand according to claim 1, characterized in that: The turning plate (5) is composed of a turning frame and a ventilation filter embedded in the turning frame. The turning frame is fixedly connected to the surface of the middle part of the first transmission shaft (4). A temperature sensor is installed on the inner wall of the corner of the top of the fixed roller (1).

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