Machine-made sand microwave drying device

Abstract

The utility model discloses a machine-made sand microwave drying device which comprises a base, a working frame is fixed to the upper end of the base, a door plate is installed on the front side of the working frame, a dehumidification system is installed at the upper end of the working frame, and a microwave source is arranged on the right side of the working frame. A bottom frame is fixed to the upper end of the base, a bottom plate is vertically and movably installed in the lower end of the transfer box, the interior of the transfer box is used for containing machine-made sand, a positioning mechanism is installed on the side, close to the center of the bottom frame, of a side plate, and a shaking mechanism is installed in the middle of the bottom frame and used for driving the bottom plate to move upwards. According to the machine-made sand microwave drying device, after the transferring box is fixed through the positioning mechanism, the shaking mechanism is used for driving the bottom plate to move upwards, machine-made sand on the bottom plate can move up and down, and therefore the possibility that the sand is locally heated is reduced, the drying speed of the whole sand is more uniform, and the drying efficiency and the sand quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine-made sand drying, and particularly relates to a microwave drying device for machine-made sand. Background Technique

[0002] As a commonly used building material, machine-made sand has been widely used in fields such as concrete and dry-mixed mortar. Microwave drying, as a new drying method, has the advantages of fast drying speed, high efficiency, energy conservation and environmental protection. Therefore, applying microwave drying technology to the drying process of machine-made sand is of great significance.

[0003] In the patent application with the authorized publication number CN220583006U, the authorized publication date of March 12, 2024, and the name of "A Microwave Drying Equipment for Drying Large-Size Sand Molds", when drying the sand mold, the transfer cart pushes the sand mold into the rotation system. At this time, the sand mold is located in the resonant cavity. The air cylinder drives the piston rod to extend, and the extension of the piston rod drives the cylinder body to contact the bottom of the transfer cart. The fan extracts the air in the cylinder body through the valve, so that the cylinder body is adsorbed on the transfer cart due to negative pressure, realizing the fixation of the transfer cart. After that, the valve closes the cylinder body, and the fan stops working. The rotation system drives the transfer cart to rotate, and the microwave source outputs microwaves to the resonant cavity through the waveguide; the moisture exhaust system is connected to the resonant cavity to discharge the water vapor generated during the drying process, thus realizing the drying of the sand mold and solving the problem of poor stability of the transfer cart;

[0004] During the actual use of the above device, the rotation system drives the transfer cart to rotate, making the heating of each part more uniform. The transfer cart rotates on its own in the rotation system, and the self-rotation drying effect may cause uneven heating of the sand grains, local overheating and local non-drying, thus affecting the quality of the sand grains.

[0005] Therefore, we propose a microwave drying device for machine-made sand to solve the problems raised above. Content of the Utility Model

[0006] 1. Technical problems to be solved by the utility model:

[0007] The purpose of the present utility model is to provide a microwave drying device for machine-made sand to solve the problems in the current market proposed in the above background technique.

[0008] 2. Technical solution:

[0009] To achieve the above object, the present utility model provides the following technical solutions: A mechanism sand microwave drying device, including a base, a working frame is fixed at the upper end of the base, a door panel is installed on the front side of the working frame, and a moisture exhaust system is installed at the upper end of the working frame, and a microwave source is arranged on the right side of the working frame;

[0010] A chassis is fixed at the upper end of the base, a transfer box is placed on the upper end of the chassis, and a bottom plate is installed in the lower part of the transfer box in a vertically movable manner. The inside of the transfer box is used to place mechanism sand. Side plates are fixed on both the left and right sides of the upper end of the chassis, and a positioning mechanism is installed on the side of the side plate close to the center of the chassis. The positioning mechanism is used to fix the transfer box. A shaking mechanism is installed in the middle of the chassis, and the shaking mechanism is used to drive the bottom plate to move upward.

[0011] Further, the positioning mechanism includes a bidirectional threaded rod installed on the side plate through a bearing. Compression members are sleeved on the front and rear ends of the bidirectional threaded rod, and a positioning member is correspondingly provided for each compression member.

[0012] Through the above technical solution, when the bidirectional threaded rod rotates, the compression member can be driven to displace, thereby driving the positioning member to move.

[0013] Further, the compression member is integrally composed of a movable block and two compression blocks. The movable block is threadedly sleeved on the outside of the bidirectional threaded rod, and the two compression blocks are symmetrically distributed up and down about the center of the movable block. The movable block fits on the side of the side plate, and one side of the compression block is inclined.

[0014] Through the above technical solution, when the bidirectional threaded rod rotates, the two compression blocks can be driven to displace by using the threaded connection with the movable block.

[0015] Further, the positioning member includes a guide block fixed on the side plate. A positioning plate is elastically and slidably fitted on the outside of the guide block, and the side of the positioning plate close to the compression block fits on the inclined surface of the compression block.

[0016] Through the above technical solution, the positioning plate slides on the outside of the guide block after being stressed to fix the transfer box.

[0017] Further, the shaking mechanism includes two rotating rods installed in the chassis through bearings. The rear ends of the two rotating rods are connected by a transmission belt assembly, and the end of one of the rotating rods is connected to the output end of an existing motor. A cam is fixedly sleeved on the outer side of the middle of the rotating rod.

[0018] Through the above technical solution, when the motor is started, the cam can be driven to rotate.

[0019] Further, the maximum radius of the cam is greater than the shortest distance from the bottom plate to the rotating rod.

[0020] Through the above technical solution, when the cam rotates, the bottom plate can be driven to move upward.

[0021] 3. Beneficial effects:

[0022] Adopting the technical solution provided by the present invention, compared with the prior art, in the mechanism sand microwave drying device of the present invention, after the transfer box is fixed by the positioning mechanism, the shaking mechanism drives the bottom plate to move upward, so that the mechanism sand on the bottom plate can move up and down, thereby reducing the possibility of local heating of the sand particles, making the drying speed of the whole sand particles more uniform, improving the drying efficiency and the quality of the sand particles. The specific content is as follows:

[0023] Place the transfer box filled with mechanism sand on the upper end of the bottom frame, and then rotate the bidirectional threaded rod. After the bidirectional threaded rod rotates, the movable block sleeved on the outside of the bidirectional threaded rod drives the pressing block to move by the fitting action with the side plate. During the movement of the pressing block, the positioning plate is driven to move outside the guiding block by the fitting action with the positioning plate until the end face of the positioning plate fits against the outer wall of the transfer box to fix the transfer box. Then start the motor, and the motor drives the two rotating rods to rotate through the belt transmission assembly. During the rotation of the rotating rods, the cam is driven to rotate. During the rotation of the cam, it will squeeze the bottom plate and drive the bottom plate to move upward inside the transfer box. Then, after the cam no longer has a squeezing force on the bottom plate, under the gravity of the mechanism sand, the bottom plate is driven to move downward. The mechanism sand on the bottom plate reduces the possibility of local heating of the sand particles during the up and down movement, making the drying speed of the whole sand particles more uniform, and improving the drying efficiency and the quality of the sand particles. Description of the drawings

[0024] Figure 1 It is a schematic three-dimensional side view structure diagram of the whole of the present invention;

[0025] Figure 2 It is a schematic three-dimensional side view structure diagram of the base of the present invention;

[0026] Figure 3 It is a schematic three-dimensional side view structure diagram of the positioning mechanism of the present invention;

[0027] Figure 4 It is a schematic three-dimensional side view structure diagram of the pressing member of the present invention;

[0028] Figure 5 It is a schematic three-dimensional side sectional view structure diagram of the transfer box of the present invention.

[0029] In the figure: 1. Base; 2. Working frame; 3. Door panel; 4. Moisture exhaust system; 5. Underframe; 6. Transfer box; 61. Bottom plate; 7. Side plate; 8. Positioning mechanism; 81. Bi-directional threaded rod; 82. Compressing member; 821. Movable block; 822. Compressing block; 83. Positioning member; 831. Guide block; 832. Positioning plate; 9. Vibration mechanism; 91. Rotating rod; 92. Cam; 93. Belt transmission assembly; 10. Microwave source. Detailed implementation manners

[0030] To facilitate the understanding of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", "provided with", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Embodiment

[0034] Please refer to Figures 1-5, A mechanism sand microwave drying device, including a base 1, a working frame 2 is fixed at the upper end of the base 1, a door panel 3 is installed on the front side of the working frame 2, a moisture exhaust system 4 is installed at the upper end of the working frame 2, and a microwave source 10 is arranged on the right side of the working frame 2; a chassis 5 is fixed at the upper end of the base 1, a transfer box 6 is placed on the upper end of the chassis 5, and a bottom plate 61 is installed in the lower part of the transfer box 6 in a vertically movable manner. The inside of the transfer box 6 is used to place mechanism sand. Side plates 7 are fixed on both the left and right sides of the upper end of the chassis 5, and a positioning mechanism 8 is installed on the side of the side plate 7 close to the center of the chassis 5. The positioning mechanism 8 is used to fix the transfer box 6. A shaking mechanism 9 is installed in the middle of the chassis 5. The shaking mechanism 9 is used to drive the bottom plate 61 to move upward; the positioning mechanism 8 includes a bidirectional threaded rod 81 installed on the side plate 7 through a bearing. Tightening members 82 are sleeved at both the front and rear ends of the bidirectional threaded rod 81, and each tightening member 82 is provided with a positioning member 83; the tightening member 82 is integrally composed of a movable block 821 and two pressing blocks 822. The movable block 821 is threadedly sleeved on the outside of the bidirectional threaded rod 81, and the two pressing blocks 822 are symmetrically distributed up and down about the center of the movable block 821. And the movable block 821 is attached to the side of the side plate 7, and one side of the pressing block 822 is inclined; the positioning member 83 includes a guiding block 831 fixed on the side plate 7. A positioning plate 832 is elastically and slidably attached to the outside of the guiding block 831, and the side of the positioning plate 832 close to the pressing block 822 is attached to the inclined surface of the pressing block 822;

[0035] First, place the transfer box 6 filled with mechanism sand on the upper end of the chassis 5, and then rotate the bidirectional threaded rod 81. After the bidirectional threaded rod 81 rotates, the movable block 821 threadedly sleeved on the outside of the bidirectional threaded rod 81 drives the pressing block 822 to move by using the fitting action with the side plate 7. During the movement of the pressing block 822, it drives the positioning plate 832 to move on the outside of the guiding block 831 by using the fitting action with the positioning plate 832 until the end face of the positioning plate 832 fits against the outer wall of the transfer box 6 to fix the transfer box 6;

[0036] The shaking mechanism 9 includes two rotating rods 91 installed in the chassis 5 through bearings. The rear ends of the two rotating rods 91 are connected by a transmission belt assembly 93, and the end of one of the rotating rods 91 is connected to the output end of an existing motor. A cam 92 is fixedly sleeved on the outer side of the middle of the rotating rod 91; the maximum radius of the cam 92 is greater than the shortest distance from the bottom plate 61 to the rotating rod 91;

[0037] Start the motor connected to the end of the rotating rod 91. The motor drives the two rotating rods 91 to rotate through the belt drive assembly 93. During the rotation of the rotating rod 91, the cam 92 is driven to rotate. During the rotation of the cam 92, it will squeeze towards the bottom plate 61, driving the bottom plate 61 to move upward inside the transfer box 6. Then, after the cam 92 no longer has a squeezing force on the bottom plate 61, under the action of the gravity of the manufactured sand, the bottom plate 61 is driven to move downward. During the up and down movement of the manufactured sand located on the bottom plate 61, the possibility of local heating of the sand grains is reduced, making the drying speed of the entire sand grains more uniform, and improving the drying efficiency and the quality of the sand grains.

[0038] Working principle: When using this microwave drying device for manufactured sand, as Figures 1-5 shown, first place the transfer box 6 filled with manufactured sand on the upper end of the chassis 5. Then rotate the bidirectional threaded rod 81 to drive the end face of the positioning plate 832 to fit against the outer wall of the transfer box 6 to fix the transfer box 6. The microwave source 10 outputs microwaves to the resonant cavity through the waveguide. The moisture exhaust system 4 is connected to the resonant cavity to discharge the water vapor generated during the drying process, realizing the drying of the sand mold. Then start the motor to drive the cam 92 to rotate. By the cam 92 squeezing towards the bottom plate 61, the bottom plate 61 is driven to move upward inside the transfer box 6. Then, after the cam 92 no longer has a squeezing force on the bottom plate 61, under the action of the gravity of the manufactured sand, the bottom plate 61 is driven to move downward. During the up and down movement of the manufactured sand located on the bottom plate 61, the possibility of local heating of the sand grains is reduced, making the drying speed of the entire sand grains more uniform, and improving the drying efficiency and the quality of the sand grains.

[0039] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A machine-made sand microwave drying device, characterized in that: It comprises a base (1), a working frame (2) is fixed to the upper end of the base (1), a door panel (3) is installed on the front side of the working frame (2), a dehumidification system (4) is installed on the upper end of the working frame (2), and a microwave source (10) is arranged on the right side of the working frame (2); A base frame (5) is fixed to the upper end of the base (1), and a transfer box (6) is placed on the upper end of the base frame (5), and a bottom plate (61) is movably mounted inside the lower end of the transfer box (6), the interior of the transfer box (6) is used to place machine-made sand, side plates (7) are fixed to the left and right sides of the upper end of the base frame (5), and a positioning mechanism (8) is installed on the side of the side plate (7) close to the center of the base frame (5), the positioning mechanism (8) is used to fix the transfer box (6), and a shaking mechanism (9) is installed in the middle of the base frame (5), the shaking mechanism (9) is used to drive the bottom plate (61) to move upward.

2. The microwave drying device for machine-made sand according to claim 1, characterized in that: The positioning mechanism (8) comprises a bidirectional threaded rod (81) bearing-mounted on the side plate (7), the front and rear ends of the bidirectional threaded rod (81) are sleeved with pressing pieces (82), and each pressing piece (82) is correspondingly provided with a positioning piece (83).

3. The microwave drying device for machine-made sand according to claim 2, characterized in that: The clamping member (82) is composed of a movable block (821) and two clamping blocks (822) which are integrally formed; the movable block (821) is threadedly sleeved on the outside of the bidirectional threaded rod (81); the two clamping blocks (822) are symmetrically distributed up and down about the center of the movable block (821); the movable block (821) is attached to the side of the side plate (7); and one side of the clamping block (822) is arranged in an inclined shape.

4. The microwave drying device for machine-made sand according to claim 2, characterized in that: The positioning member (83) comprises a guide block (831) fixed on the side plate (7), a positioning plate (832) being elastically slidably mounted on the outer side of the guide block (831), and a side of the positioning plate (832) close to the pressing block (822) is in contact with an inclined surface of the pressing block (822).

5. The machine-made sand microwave drying device according to claim 1, characterized in that: The shaking mechanism (9) comprises two rotating rods (91) whose bearings are mounted inside the base frame (5), the rear ends of the two rotating rods (91) are connected via a transmission belt assembly (93), and the end of one of the rotating rods (91) is connected to the output end of an existing motor, and a cam (92) is provided on the outer fixed sleeve of the middle part of the rotating rod (91).

6. The microwave drying device for machine-made sand according to claim 5, characterized in that: The maximum radius of the cam (92) is greater than the shortest distance from the bottom plate (61) to the rotating rod (91).

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