Hot galvanizing auxiliary heating device

Abstract

The utility model discloses an auxiliary heating device for hot galvanizing, which belongs to the technical field of hot galvanizing and comprises a heating box, two connecting boxes are symmetrically mounted on the inner top surface of the heating box, and a plurality of electric heating wires for providing heat for heating a hot galvanizing workpiece are mounted on the inner walls of the two connecting boxes. The inner bottom faces of the two connecting boxes communicate with communicating pipes used for conveying heat, a driving motor is installed on the top face of the heating box, the output end of the driving motor is provided with a semi-fluted disc in a penetrating mode through a rotating shaft, transverse blocks are arranged on the peripheral sides of the two communicating pipes in a sleeving mode, and teeth meshed with the semi-fluted disc are installed on the opposite side faces of the two transverse blocks. One side face of each transverse block is connected with a plurality of springs, the free ends of the springs are connected with the inner side wall of the heating box, and two mounting boxes are symmetrically mounted on the top face of the heating box. According to the hot galvanizing auxiliary heating device, the problem that heating is difficult to conduct at different angles and positions is solved, and the heating effect on a hot galvanizing workpiece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-dip galvanizing, in particular to a hot-dip galvanizing auxiliary heating device. Background Technique

[0002] Hot-dip galvanizing, also known as hot-dip zinc plating and hot-dip galvanizing, is an effective method for metal anti-corrosion, mainly used for metal structure facilities in various industries. Before the hot-dip galvanizing process, it is necessary to dry and heat the workpiece to prevent the workpiece from deforming due to a sharp rise in temperature during dipping and remove the residual moisture to prevent zinc explosion and zinc liquid splashing. Now, most heating devices have different angles and positions when placing the workpiece inside the heating device, but the positions and angles of the heat delivery ports for delivering heat are fixed, resulting in a relatively fixed drying range for the heat delivery ports with fixed angles and positions, making it difficult to uniformly dry workpieces at different angles and positions, and causing local high temperature and local low temperature conditions to easily occur on the workpiece, reducing the heating effect on hot-dip galvanized workpieces.

[0003] For example, the existing Chinese publication number is: CN218443207U, a drying device for hot-dip galvanizing, which: "comprises a base, the top of the base is fixedly connected with four side plates, and the same rotating roller is rotatably connected between two corresponding side plates, and the outer sides of the two rotating rollers are drivingly connected with the same conveyor belt, and the same U-shaped frame is fixedly connected between the four side plates."

[0004] It can be seen that this cited patent document has the problem of being difficult to uniformly dry and prone to local high temperature and low temperature. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hot-dip galvanizing auxiliary heating device to solve the problems raised in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A hot-dip galvanizing auxiliary heating device, comprising a heating box, two connection boxes are symmetrically installed on the inner top surface of the heating box, a plurality of electric heating wires for providing heat for heating the hot-dip galvanized workpiece are installed on the inner walls of the two connection boxes, the inner bottom surfaces of the two connection boxes are both communicated with a communicating pipe for delivering heat, a driving motor is installed on the top surface of the heating box, the output end of the driving motor is provided with a semi-toothed disk through a rotating shaft, cross blocks are sleeved on the circumferences of the two communicating pipes, tooth teeth meshing with the semi-toothed disk are installed on the opposite side surfaces of the two cross blocks, one side surface of each of the two cross blocks is connected with a plurality of springs, and the free ends of the plurality of springs are respectively connected with the inner side wall of the heating box.

[0007] Preferably, two installation boxes are symmetrically installed on the top surface of the heating box, and the two installation boxes are respectively communicated with the two connection boxes through penetration.

[0008] Preferably, motors are installed on the inner top surfaces of the two mounting boxes, and the output ends of the two motors are respectively connected with fan blades.

[0009] Preferably, four limiting blocks for limiting the positions of the cross blocks are symmetrically welded on the inner side wall of the heating box, and the two cross blocks are respectively sleeved on the peripheries of the two limiting blocks in a sliding manner.

[0010] Preferably, through holes for the communicating pipes to pass through are formed in the top surfaces of the two cross blocks, bearings are arranged in the inner cavities of the two through holes, and the outer side walls of the two bearings are respectively fixedly connected to the inner side walls of the two through holes.

[0011] Preferably, the two communicating pipes respectively pass through the two bearings and are fixedly connected to the inner side walls of the two bearings.

[0012] Preferably, a conveyor belt for conveying hot-dip galvanized workpieces is installed in the inner cavity of the heating box through a bracket.

[0013] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0014] For this hot-dip galvanizing auxiliary heating device, the hot-dip galvanized workpieces are conveyed into the heating box through the conveyor belt, and power is provided by the driving motor, enabling the two cross blocks to perform reciprocating motion, so that the two communicating pipes can transfer heat at different positions and angles. Compared with the situation of heating hot-dip galvanized workpieces by the existing devices, this device can heat the hot-dip galvanized workpieces at different angles and positions, reducing the occurrence of local high temperature or local low temperature of the hot-dip galvanized workpieces.

[0015] Through the welded limiting blocks, the movement of the cross blocks can be limited to avoid deviation or shaking. The motor provides power to enable the fan blades to rotate, thereby blowing the heat generated by the heating wire. The setting of the heat insulation curtain can limit the inlet and outlet of the heating box, reducing the situation of heat overflowing from the heating box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a cross-sectional view of the heating box of the present utility model;

[0019] Figure 3 Structural schematic diagram of the semi-toothed disk and the cross block of the present utility model;

[0020] Figure 4 Of the present utility model Figure 2 Structural schematic diagram at position A in

[0021] Explanation of reference numerals:

[0022] In the figure: 1, heating box; 2, connection box; 3, heating wire; 4, connecting pipe; 5, driving motor; 6, semi-toothed disk; 7, cross block; 8, tooth; 9, spring; 10, installation box; 11, motor; 12, fan blade; 13, limiting block; 14, through hole; 15, bearing; 16, conveyor belt; 17, heat insulation curtain. Specific implementation mode

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this article are based on the up, down, left, right, front, back, inside and outside directions in the figure shown by the present utility model, which are hereby explained together.

[0025] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., subject to actual needs.

[0026] Such as Figures 1 to 4 Shown is a hot-dip galvanizing auxiliary heating device, including a heating box 1. Two connection boxes 2 are symmetrically installed on the inner top surface of the heating box 1. A plurality of heating wires 3 for providing heat for heating hot-dip galvanizing workpieces are installed on the inner walls of the two connection boxes 2. By connecting an external power supply to the plurality of heating wires 3, the plurality of heating wires 3 can generate heat to heat the hot-dip galvanizing workpieces.

[0027] The inner bottom surfaces of both connection boxes 2 are connected with a communicating pipe 4 for transporting heat. Two mounting boxes 10 are symmetrically installed on the top surface of the heating box 1. The two mounting boxes 10 are respectively penetrated and communicated with the two connection boxes 2. Motors 11 are installed on the inner top surfaces of the two mounting boxes 10. The output ends of the two motors 11 are both connected with fan blades 12. By starting the motors 11, the motors 11 drive the fan blades 12 to rotate, so that the fan blades 12 can blow air downward, enabling the heat generated by the heating wire 3 to enter the communicating pipe 4 through the connection box 2 and be blown onto the hot-dip galvanized workpiece through the communicating pipe 4 for heating operation. Heat dissipation openings are provided on the top surfaces of the two mounting boxes 10, which can dissipate the temperature inside the mounting boxes 10. The connection box 2, the mounting box 10, the cross block 7, and the limiting block 13 are all made of heat-resistant materials, such as 310S stainless steel plates, which can adapt to high-temperature environments.

[0028] A driving motor 5 is installed on the top surface of the heating box 1. The output end of the driving motor 5 is provided with a semi-toothed disc 6 through a rotating shaft. Cross blocks 7 are sleeved on the circumferences of the two communicating pipes 4. Tooth teeth 8 meshing with the semi-toothed disc 6 are installed on the opposite side surfaces of the two cross blocks 7. A plurality of springs 9 are connected to one side surface of each of the two cross blocks 7. The free ends of the plurality of springs 9 are respectively connected to the inner side wall of the heating box 1. When the communicating pipe 4 transports heat, the driving motor 5 is started, and the driving motor 5 drives the semi-toothed disc 6 to rotate. Since the semi-toothed disc 6 only has half of the teeth, the semi-toothed disc 6 can drive the two cross blocks 7 to reciprocate in different directions respectively through the tooth teeth 8, so that the two cross blocks 7 drive the two communicating pipes 4 to reciprocate in different directions, enabling the communicating pipe 4 to discharge heat at different positions and angles, reducing the situation that it is difficult to heat at different angles and positions, resulting in local high temperature and local low temperature of the hot-dip galvanized workpiece, and improving the heating effect on the hot-dip galvanized workpiece.

[0029] The material of the communicating pipe 4 is selected as a soft material, similar to the existing telescopic pipe structure, as long as it is ensured that the communicating pipe 4 can follow the reciprocating movement of the cross block 7. Both the semi-toothed disc 6 and the tooth teeth 8 can be made of nylon material, which has a certain heat resistance, and the spring 9 is an existing high-temperature spring, which can adapt to high-temperature environments.

[0030] Four limiting blocks 13 for limiting the positions of the cross blocks 7 are symmetrically welded on the inner side wall of the heating box 1. The two cross blocks 7 are respectively slidably sleeved on the circumferences of the two limiting blocks 13.

[0031] The top surfaces of the two horizontal blocks 7 are provided with through holes 14 for the communication pipes 4 to pass through. The inner cavities of the two through holes 14 are both provided with bearings 15. The outer side walls of the two bearings 15 are respectively fixedly connected to the inner side walls of the two through holes 14. The two communication pipes 4 respectively pass through the two bearings 15 and are fixedly connected to the inner side walls of the two bearings 15. Since the communication pipes 4 are fixedly connected to the inner rings of the bearings 15, the communication pipes 4 can rotate in the inner cavities of the through holes 14 while reciprocating with the horizontal blocks 7, avoiding the situation that the communication pipes 4 are twisted together due to the reciprocating motion.

[0032] A conveyor belt 16 for conveying hot-dip galvanized workpieces is installed in the inner cavity of the heating box 1 through a bracket. Inlets and outlets are respectively formed on the two side surfaces of the heating box 1, and the conveyor belt 16 respectively passes through the inlet and the outlet. One side surface of the bracket is provided with a motor, and the output end of the motor penetrates and is connected to the roller of the conveyor belt 16. After placing the hot-dip galvanized workpiece on the surface of the conveyor belt 16, the motor is turned on, so that the motor can drive the roller to rotate, thereby driving the conveyor belt 16 to rotate, and enabling the conveyor belt 16 to drive the hot-dip galvanized workpiece to move into the heating box 1 for heating.

[0033] Heat insulation curtains 17 are respectively connected to the inner top surfaces of the inlet and the outlet through hinges. The heat insulation curtains 17 can limit the inlet and the outlet, reducing the heat in the heating box 1 from overflowing from the inlet and the outlet.

[0034] Working principle:

[0035] For this hot-dip galvanized auxiliary heating device, place the hot-dip galvanized workpiece to be heated on the surface of the conveyor belt 16, and drive the conveyor belt 16 to rotate through the motor, so that the hot-dip galvanized workpiece can enter the heating box 1. At this time, the external power supply is connected to the heating wire 3 to energize, so that the heating wire 3 generates heat, and the motor 11 is turned on to drive the fan blade 12 to rotate, then it can blow downward, enabling the heat generated by the heating wire 3 to enter the communication pipe 4 through the connection box 2 and be blown to the hot-dip galvanized workpiece through the communication pipe 4, and then the heating operation can be carried out. At this time, the driving motor 5 is turned on, and the driving motor 5 drives the semi-toothed disk 6 to rotate. Since the semi-toothed disk 6 only has half of the teeth, the semi-toothed disk 6 can drive the two horizontal blocks 7 to reciprocate in different directions respectively through the teeth 8, thereby driving the two communication pipes 4 to reciprocate, enabling the communication pipes 4 to discharge heat at different positions and angles, reducing the situation that it is difficult to heat at different angles and positions and making the hot-dip galvanized workpiece prone to local high temperature and local low temperature, and improving the heating effect of the hot-dip galvanized workpiece.

[0036] It should be noted that, in this text, relational terms such as "one" and "two" 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 "include", "comprise" 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. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0037] 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 hot-dip galvanizing auxiliary heating device, comprising a heating box (1), characterized in that: Two connection boxes (2) are symmetrically installed on the inner top surface of the heating box (1). A number of electric heating wires (3) for providing heat for heating the hot-dip galvanized workpieces are installed on the inner walls of the two connection boxes (2). The inner bottom surfaces of the two connection boxes (2) are both communicated with a communicating pipe (4) for transporting heat. A driving motor (5) is installed on the top surface of the heating box (1). A semi-toothed disc (6) is provided through the output end of the driving motor (5) by a rotating shaft. Transverse blocks (7) are sleeved on the circumferences of the two communicating pipes (4). Tooth teeth (8) meshing with the semi-toothed disc (6) are installed on the opposite side surfaces of the two transverse blocks (7). A plurality of springs (9) are connected to one side surface of each of the two transverse blocks (7). The free ends of the plurality of springs (9) are respectively connected to the inner side wall of the heating box (1).

2. The hot-dip galvanizing auxiliary heating device according to claim 1, characterized in that: Two mounting boxes (10) are symmetrically installed on the top surface of the heating box (1). The two mounting boxes (10) are respectively communicated with the two connection boxes (2) through penetration.

3. The auxiliary heating device for hot-dip galvanizing according to claim 2, characterized in that: Motors (11) are installed on the inner top surfaces of the two mounting boxes (10). Fan blades (12) are connected to the output ends of the two motors (11).

4. The hot-dip galvanizing auxiliary heating device according to claim 1, wherein: Four limiting blocks (13) for limiting the positions of the transverse blocks (7) are symmetrically welded on the inner side wall of the heating box (1). The two transverse blocks (7) are respectively sleeved on the circumferences of the two limiting blocks (13) in a sliding manner.

5. A hot-dip galvanizing auxiliary heating device according to claim 1, characterized in that: Through holes (14) for the communicating pipes (4) to pass through are provided through the top surfaces of the two transverse blocks (7). Bearings (15) are provided in the inner cavities of the two through holes (14). The outer side walls of the two bearings (15) are respectively fixedly connected to the inner side walls of the two through holes (14).

6. The hot-dip galvanizing auxiliary heating device according to claim 5, wherein: The two communicating pipes (4) respectively pass through the two bearings (15) and are fixedly connected to the inner side walls of the two bearings (15).

7. A hot-dip galvanizing auxiliary heating device according to claim 1, characterized in that: A conveyor belt (16) for transporting hot-dip galvanized workpieces is installed in the inner cavity of the heating box (1) through a bracket.

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