Precoated sand heating device

Abstract

The utility model relates to the technical field of precoated sand heating, in particular to a precoated sand heating device which comprises a main body and a material guiding device, a heater is fixedly connected to the upper surface of the main body, a pipeline is fixedly connected to the upper surface of the main body, a fan is fixedly connected to one end of the pipeline, a discharging pipe is fixedly connected to the side face of the heater, and the discharging pipe is fixedly connected to the lower surface of the main body. The material guiding device is arranged at one end of the discharging pipe and comprises a material guiding pipe and a connecting block, the material guiding pipe is arranged at the discharging end of the discharging pipe, the connecting block is fixedly connected with the surface of the material guiding pipe, and a limiting hole is formed in the surface of the discharging pipe. According to the material guiding device, materials are effectively guided through the material guiding device, the effect of dragging the discharged materials is achieved, the situation that when equipment is used, due to the fact that a certain distance exists between the discharging pipe and the ground, the materials are prone to being scattered on the ground and difficult to be completely collected during discharging is reduced, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand heating, in particular to a coated sand heating device. Background Art

[0002] Coated sand refers to molding sand or core sand whose surface is covered with a layer of solid resin film before molding. The sand is preheated to a certain temperature, resin is added to melt it, and stirred to coat the resin on the surface of the sand. A urotropine aqueous solution and a lubricant are added. The coated sand is cooled, crushed, and sieved to obtain the coated sand, which is used for casting steel and iron parts. At present, coated sand mainly uses high-quality selected natural quartz sand as raw sand, thermoplastic phenolic resin, urotropine and reinforcing agent as raw materials. According to the different technical needs of users, the proportion is appropriately adjusted in terms of curing speed, demolding, fluidity, disintegration, casting surface finish, storage, etc.

[0003] Prior art such as the utility model with publication number CN213671671U discloses a coated sand heating device, which adopts a main body and a heating chamber, wherein the heating chamber is located above the main body, an air outlet and a fan connected to the air outlet are arranged on the left side thereof, an electric heating pipe is arranged inside, and multiple electric heating pipes are arranged horizontally between the inner walls on both sides of the heating chamber, and heat-conducting cotton is also arranged in the vertical direction of the heating chamber, and the heat-conducting cotton and the electric heating pipe are distributed in sequence; the two ends of the heating chamber are connected to the main body through a conveying pipe, and a plurality of heat outlets are arranged at the lower end of the conveying pipe, and a motor is arranged on the left side of the outside of the main body, and the motor is connected to the outer cylinder through a rotating shaft, and the outer cylinder is a hollow structure and an inner cylinder is arranged inside it, and a heat conductor is also arranged on the inner wall of the outer cylinder, and a cavity is formed between the heat conductor and the outer wall of the inner cylinder, and a spiral blade is arranged in the inner cavity of the inner cylinder; the utility model device solves the problems that the current coated sand heating equipment has low heating efficiency, the equipment is too large, occupies space, the heating is uneven, and too much heat is lost during the heating process, which is not conducive to energy saving.

[0004] The inventors found in their daily work that in the process of using the equipment, there is a problem that due to the certain distance between the discharge pipe and the ground, the material is easily spilled on the ground when being discharged, making it difficult to collect it completely. Utility Model Content

[0005] The utility model aims to solve the defect in the prior art that materials are easily spilled on the ground and are difficult to be completely received, and proposes a coated sand heating device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coated sand heating device, comprising a main body and a material guiding device, a heater is fixedly connected to the upper surface of the main body, a pipe is fixedly connected to the upper surface of the main body, a fan is fixedly connected to one end of the pipe, a discharge pipe is fixedly connected to the side of the heater, the material guiding device is arranged at one end of the discharge pipe, the material guiding device comprises a material guiding pipe and a connecting block, the material guiding pipe is arranged at the lower end of the discharge pipe, the connecting block is fixedly connected to the surface of the material guiding pipe, a limiting hole is opened on the surface of the discharge pipe, a pulling hole is opened on the inner wall of the connecting block, and the inner wall of the pulling hole is slidably connected to a limiting rod.

[0007] Furthermore, one end of the limit rod is clamped with the inside of the limit hole, and a retaining ring is fixedly connected to the surface of the limit rod. By setting the limit rod, the guide tube can be limited and connected, which reduces the possibility that the guide tube will easily separate from the surface of the discharge tube when the equipment is in use.

[0008] Furthermore, a spring is sleeved on the surface of the limit rod, and both ends of the spring are fixedly connected to the surface of the abutment ring and the inner wall of the pulling hole respectively. The spring is provided to facilitate applying a reset elastic force to the limit rod.

[0009] Furthermore, one end of the limit rod is fixedly connected to a pull rod, and the pull rod is provided to facilitate the movement of the limit rod.

[0010] Furthermore, a breaking device is provided inside the material guide tube, and the breaking device includes a rotating column and a limit block. The rotating column is rotatably connected to the inner wall of the material guide tube, and the limit block is fixedly connected to the surface of the rotating column. The surface of the rotating column is fixedly connected with a beating rod. By providing the beating rod, the lumps of materials can be broken up, thereby reducing the situation where the materials are easy to clump and difficult to break up when the equipment is in use.

[0011] Furthermore, one end of the rotating column is fixedly connected to a motor, the surface of the motor is fixedly connected to a connecting frame, the connecting frame is fixedly connected to the surface of the material guide tube, and the connecting frame is provided to facilitate limiting the motor.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when the equipment is in use, the heated material is placed into the interior of the heater, and then resin and other materials are added, and then the fan blows hot air into the interior of the equipment for fusion. When the equipment is in use, the user pulls the pull rod, and when the pull rod moves, it drives the limit rod to move, and the movement of the limit rod drives the movement of the retaining ring, and when the retaining ring moves, it drives the spring to move and deform to generate elastic force, and then the limit rod moves out of the interior of the limit hole, and then the guide pipe loses its restraint, and the guide pipe is pulled out of the surface of the discharge pipe. By setting up the guide device, the material is effectively guided, which plays a role in pulling the material to be discharged, reducing the situation that when the equipment is in use, the material is easily spilled on the ground when it is discharged, and it is difficult to collect it completely because the discharge pipe is at a certain distance from the ground, thereby improving the practicality of the equipment.

[0014] 2. In the utility model, by setting a breaking device, when the equipment is in use, the motor is started, and then the motor rotates to drive the rotating column to rotate. When the rotating column rotates, it drives the beating rod to break up the material lumps. By setting up the breaking device, the material lumps are effectively broken up, which plays a role in breaking up the material lumps. When the equipment is in use, the appearance of lumps is reduced due to the melting of resin and other adhesives between the materials, which easily causes the user to process the material twice, wasting manpower and material resources, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a coated sand heating device is proposed for the utility model;

[0016] Figure 2 A side structural schematic diagram of a coated sand heating device is provided for the utility model;

[0017] Figure 3 A partial structural schematic diagram of a coated sand heating device proposed by the utility model;

[0018] Figure 4 The utility model proposes a coated sand heating device Figure 3 Schematic diagram of the structure at A in the middle;

[0019] Figure 5 The utility model proposes a coated sand heating device Figure 3 Schematic diagram of the structure at point B in the middle.

[0020] Legend: 1. Main body; 2. Heater; 3. Fan; 4. Pipe; 5. Discharge pipe; 6. Material guide device; 61. Material guide pipe; 62. Connecting block; 63. Limiting hole; 64. Pulling hole; 65. Limiting rod; 66. Thrust ring; 67. Spring; 68. Pulling rod; 7. Breaking device; 71. Rotating column; 72. Beating rod; 73. Limiting block; 74. Motor; 75. Connecting frame. DETAILED DESCRIPTION

[0021] See also Figure 1-5 The utility model provides a technical solution: a coated sand heating device, including a main body 1 and a material guiding device 6, a heater 2 is fixedly connected to the upper surface of the main body 1, a pipe 4 is fixedly connected to the upper surface of the main body 1, a fan 3 is fixedly connected to one end of the pipe 4, and a discharge pipe 5 is fixedly connected to the side of the heater 2.

[0022] The specific arrangement and function of the material guiding device 6 and the breaking device 7 will be described in detail below.

[0023] In this embodiment: the material guiding device 6 is arranged at one end of the discharge pipe 5, and the material guiding device 6 includes a material guiding pipe 61 and a connecting block 62. The material guiding pipe 61 is arranged at the discharge end of the discharge pipe 5, and the connecting block 62 is fixedly connected to the surface of the material guiding pipe 61. A limiting hole 63 is opened on the surface of the discharge pipe 5, and a pulling hole 64 is opened on the inner wall of the connecting block 62. The inner wall of the pulling hole 64 is slidably connected to a limiting rod 65.

[0024] Specifically, one end of the limiting rod 65 is engaged with the inside of the limiting hole 63 , and a retaining ring 66 is fixedly connected to the surface of the limiting rod 65 .

[0025] In this embodiment, by providing a limiting rod 65, the material guide tube 61 can be connected to a limiting position, thereby reducing the possibility that the material guide tube 61 is easily separated from the surface of the discharge tube 5 when the device is in use.

[0026] Specifically, a spring 67 is sleeved and connected to the surface of the limiting rod 65 , and two ends of the spring 67 are fixedly connected to the surface of the retaining ring 66 and the inner wall of the pulling hole 64 respectively. The spring 67 is provided to facilitate the application of a reset elastic force to the limiting rod 65 .

[0027] Specifically, one end of the limiting rod 65 is fixedly connected to a pull rod 68 , and the pull rod 68 is provided to facilitate the movement of the limiting rod 65 .

[0028] In this embodiment: a breaking device 7 is arranged inside the material guide tube 61, and the breaking device 7 includes a rotating column 71 and a limit block 73. The rotating column 71 is rotatably connected to the inner wall of the material guide tube 61, and the limit block 73 is fixedly connected to the surface of the rotating column 71. A hitting rod 72 is fixedly connected to the surface of the rotating column 71.

[0029] In this embodiment, by providing a beating rod 72, the lumps of the materials can be broken up, thereby reducing the situation where the materials are easy to clump and difficult to break up when the equipment is in use.

[0030] Specifically, one end of the rotating column 71 is fixedly connected to a motor 74 , a connecting frame 75 is fixedly connected to the surface of the motor 74 , and the connecting frame 75 is fixedly connected to the surface of the material guide tube 61 . The connecting frame 75 is provided to facilitate limiting the motor 74 .

[0031] Working principle: When the equipment is in use, the heated material is placed into the interior of the heater 2, and then resin and other materials are added, and then the fan 3 blows hot air into the interior of the equipment for fusion. When the equipment is in use, the user pulls the pull rod 68, and when the pull rod 68 moves, it drives the limit rod 65 to move, and the limit rod 65 moves to drive the retaining ring 66 to move, and when the retaining ring 66 moves, it drives the spring 67 to displace and deform to generate elastic force, and then the limit rod 65 moves out of the interior of the limit hole 63, and then the guide pipe 61 loses its restraint, and pulls the guide pipe 61 out of the surface of the discharge pipe 5. By setting the guide device 6, the material is effectively guided, which plays a role in pulling the material to be discharged, reducing the situation that when the equipment is in use, the material is easily spilled on the ground when it is discharged, and it is difficult to collect it completely because the discharge pipe 5 is at a certain distance from the ground, thereby improving the practicability of the equipment.

[0032] When the equipment is in use, the motor 74 is started, and then the motor 74 rotates to drive the rotating column 71 to rotate. When the rotating column 71 rotates, it drives the beating rod 72 to break up the material lumps. By setting up the breaking device 7, the material lumps are effectively broken up, which plays a role in breaking up the material lumps. When the equipment is in use, the appearance of lumps is reduced due to the melting of resin and other adhesives between the materials, which easily causes the user to process the material twice, wasting manpower and material resources, thereby improving the practicability of the equipment.

Claims

1. A coated sand heating device, comprising a main body (1) and a material guiding device (6), characterized in that: The upper surface of the main body (1) is fixedly connected to a heater (2), the upper surface of the main body (1) is fixedly connected to a pipe (4), one end of the pipe (4) is fixedly connected to a fan (3), the side of the heater (2) is fixedly connected to a discharge pipe (5), the guide device (6) is arranged at one end of the discharge pipe (5), the guide device (6) comprises a guide pipe (61) and a connecting block (62), the guide pipe (61) is arranged at the discharge end of the discharge pipe (5), the connecting block (62) is fixedly connected to the surface of the guide pipe (61), a limiting hole (63) is provided on the surface of the discharge pipe (5), a pulling hole (64) is provided on the inner wall of the connecting block (62), and the inner wall of the pulling hole (64) is slidably connected to a limiting rod (65).

2. The coated sand heating device according to claim 1, characterized in that: One end of the limiting rod (65) is clamped with the inside of the limiting hole (63), and a retaining ring (66) is fixedly connected to the surface of the limiting rod (65).

3. The coated sand heating device according to claim 2, characterized in that: A spring (67) is sleeved and connected to the surface of the limiting rod (65), and two ends of the spring (67) are respectively fixedly connected to the surface of the abutment ring (66) and the inner wall of the pulling hole (64).

4. The coated sand heating device according to claim 3, characterized in that: One end of the limiting rod (65) is fixedly connected to a pull rod (68).

5. The coated sand heating device according to claim 1, characterized in that: A scattering device (7) is arranged inside the material guide tube (61), and the scattering device (7) comprises a rotating column (71) and a limiting block (73). The rotating column (71) is rotatably connected to the inner wall of the material guide tube (61), and the limiting block (73) is fixedly connected to the surface of the rotating column (71). A beating rod (72) is fixedly connected to the surface of the rotating column (71).

6. The coated sand heating device according to claim 5, characterized in that: One end of the rotating column (71) is fixedly connected to a motor (74), the surface of the motor (74) is fixedly connected to a connecting frame (75), and the connecting frame (75) is fixedly connected to the surface of the material guide tube (61).

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