Device for roasting yellow steel diamonds

Abstract

The utility model belongs to the technical field of drill bit machining, and particularly relates to a steel drill yellowing device which comprises a furnace body, the furnace body comprises a furnace cavity built by refractory bricks, a furnace ladle arranged in the furnace cavity and a furnace pipe, a furnace cover is arranged at the top of the furnace pipe, a soaking device is arranged at the bottom of the furnace cover, the furnace ladle is provided with an interlayer, and heat insulation materials are filled in the interlayer. Electric heating wires are evenly laid on the inner wall of the furnace ladle, the top of the furnace cover is controlled through a lifting device, the lifting device comprises a hydraulic device and a connecting frame, the output end of the hydraulic device is connected with a rotating shaft through a rotating shaft sleeve, one end of the connecting frame is connected with the rotating shaft, and the other end of the connecting frame is connected with the furnace cover; a temperature sensor is arranged in the furnace pipe, the interior of the furnace pipe is fully baked through an electric heating wire, meanwhile, a soaking device is arranged, baking is more uniform, then the manufacturing quality of steel diamond coating baking yellowing is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of drill bit processing, and in particular relates to a steel drill yellowing device. Background Art

[0002] In the prior art, there is a baking process in the process of producing steel drills. In this process, the drill bit needs to be sent into the furnace cavity and baked for a certain period of time to be baked yellow. However, the current baking device has a poor insulation effect, and the temperature in the furnace cavity loses quickly, resulting in insufficient baking time, color difference on the surface of the drill bit, and unqualified products. In addition, the furnace cover of the current baking furnace is controlled by a mobile crane. If the opening and closing of the furnace cover are controlled by this crane, there is a situation of untimely operation, which greatly affects the work efficiency and production progress.

[0003] Therefore, the above problems are issues that should be considered and solved in the process of producing the above steel drills. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a steel drill browning device which can prolong the heat preservation and control the heat preservation time, avoid heat loss, and use a hydraulic lifting device to save the time of opening and closing the furnace cover, thereby improving work efficiency.

[0005] The specific technical scheme of the utility model is as follows: The utility model provides a steel drill yellowing device, including a furnace body, the furnace body including a furnace cavity made of refractory bricks, a furnace bag arranged inside the furnace cavity and a furnace core arranged inside the furnace bag, a furnace cover is provided on the top of the furnace core, a heat equalizing device is provided at the bottom of the furnace cover, the furnace bag is provided with an interlayer, the interlayer is filled with heat insulating material, the inner wall of the furnace bag is evenly paved with electric heating wires, the top of the furnace cover is controlled by a lifting device, the lifting device includes a hydraulic device and a connecting frame, the output end of the hydraulic device is connected to the rotating shaft through a rotating shaft sleeve, one end of the connecting frame is connected to the rotating shaft, and the other end is connected to the furnace cover, a temperature sensor is provided inside the furnace core, and the temperature sensor is connected to an external control box through a signal.

[0006] A further improvement of the utility model is that the connecting frame comprises four supporting columns arranged on the top of the furnace cover and a connecting plate fixed on the supporting columns, and one end of the connecting plate is sleeved on the top of the rotating shaft.

[0007] A further improvement of the utility model is that the hydraulic device includes a hydraulic rod and a driving device for driving the hydraulic rod to rise and fall, the outer wall of the furnace body is provided with at least one limit block, and the middle part of the limit block is provided with a limit hole adapted to the diameter of the hydraulic rod.

[0008] A further improvement of the utility model is that two control buttons for respectively controlling the raising and lowering of the hydraulic rod are arranged on the connecting frame.

[0009] A further improvement of the utility model is that the heat equalizing device is a fan, a protective cover is arranged around the outer periphery of the fan, and a motor for controlling the rotation of the fan is arranged on the top of the furnace cover.

[0010] A further improvement of the utility model is that a temperature display screen is provided on the control box, and an alarm light is provided on the top of the control box.

[0011] The beneficial effects of the utility model are as follows: it has a simple structure and is easy to operate. The furnace chamber made of refractory bricks can improve the furnace body's resistance to high temperature, erosion and corrosion, extend the maintenance cycle, and increase the service life of the furnace body. An interlayer is arranged in the furnace bag and filled with heat-insulating materials, which can effectively prevent the loss of heat inside the furnace and improve its thermal insulation. While the inside of the furnace is fully baked by the electric heating wire, a heat-averaging device is arranged to make the baking more uniform, thereby improving the quality of the baked yellow coating of the steel drill and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is the structural intention of the connecting frame in the utility model;

[0014] Figure 3 It is a schematic diagram of the control box in the utility model;

[0015] Among them, 1-furnace body, 2-furnace cavity, 3-furnace bag, 4-furnace hearth, 5-furnace cover, 6-protective plate, 7-interlayer, 8-insulation cotton, 9-electric heating wire, 10-connecting frame, 11-hydraulic rod, 12-driving device, 13-rotating shaft sleeve, 14-rotating shaft, 15-support column, 16-connecting plate, 17-limiting block, 18-temperature sensor, 19-control box, 20-temperature display screen, 21-alarm light, 22-fan, 23-protective cover, 24-motor, 15-pull rod, 26-control button. DETAILED DESCRIPTION

[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the scope of protection.

[0017] The present embodiment provides a device for baking yellow steel drill, comprising a furnace body 1, the furnace body 1 comprising a furnace chamber 2 made of refractory bricks, a furnace bag 3 arranged inside the furnace chamber 2, and a furnace 4 arranged inside the furnace bag 3, a furnace cover 5 is arranged on the top of the furnace 4, the outer wall of the furnace chamber 2 is wrapped with a steel plate, a protective plate 6 is arranged on the top of the furnace chamber 2, the furnace bag 3 is provided with an interlayer 7, and the contact surface between the protective plate 6 and the furnace chamber 2 and the interlayer 7 are provided with thermal insulation cotton 8. The inner wall of the furnace bag 3 is evenly paved with electric heating wires 9, the top of the furnace cover 5 is controlled by a lifting device, the lifting device comprises a hydraulic device and a connecting frame 10, the hydraulic device comprises a hydraulic rod 11 and a driving device 12 for driving the hydraulic rod 11 to lift and lower, the top of the hydraulic rod 11 is connected to a rotating shaft 14 through a rotating shaft sleeve 13, the connecting frame comprises four supporting columns 15 arranged on the top of the furnace cover 5 and a connecting plate 16 fixed on the supporting columns 15, one end of the connecting plate 16 is sleeved on the top of the rotating shaft 14. The outer wall of the furnace body 1 is provided with two stop blocks 17 correspondingly arranged in the upper and lower parts. The middle part of the stop block 17 is provided with a stop hole for limiting and fixing the hydraulic rod 11. The hydraulic rod 11 is inserted into the stop hole. The connecting frame 10 is provided with two control buttons 26 for controlling the lifting and lowering of the hydraulic rod 11 respectively, wherein the lifting button is green and the lowering button is red. A temperature sensor 18 is provided inside the furnace 4. The temperature sensor 18 is connected to the external control box 19 through a signal. A temperature display screen 20 is provided on the control box. An alarm light 21 is provided on the top of the control box 20. A heat equalization device is provided at the bottom of the furnace cover 5. The heat equalization device is a fan 22. A protective cover 23 is provided around the outer periphery of the fan 22. A motor 24 for controlling the rotation of the fan 22 is provided on the top of the furnace cover 3. A pull rod 25 is also provided on the connecting frame 10.

[0018] The present embodiment provides a device for baking a steel drill yellow. When baking the drill coating, the drill to be baked yellow can be first loaded into a metal basket, and then the metal basket is placed in the furnace 4 by a crane. After that, the hydraulic device is driven by the red button to lower the hydraulic rod 11 and cover the furnace cover 5. The temperature sensor 18 can monitor the temperature in the furnace in real time and transmit it to the temperature display screen 20 of the control box 19. When the temperature is too high, the alarm light 21 will sound an alarm to remind the staff to intervene. The fan 22 at the bottom of the furnace cover 5 can make the air in the furnace 4 flow, so that the baking temperature is more uniform, and the baking quality and efficiency are improved. After baking, the hydraulic rod 11 is lifted by the green button to open the furnace cover 5, and the furnace cover 5 is manually rotated by the pull rod 25 using the rotating shaft 14 to make the furnace cover 5 away from the furnace opening, and the drill bit can be taken out.

[0019] The above are only preferred feasible embodiments of the present invention and are not limitations of the present invention. The present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A steel drill yellowing device, characterized in that: The invention comprises a furnace body, wherein the furnace body comprises a furnace cavity made of refractory bricks, a furnace bag arranged inside the furnace cavity and a furnace core arranged inside the furnace bag, a furnace cover is arranged on the top of the furnace core, a heat equalizing device is arranged on the bottom of the furnace cover, the furnace bag is provided with an interlayer, the interlayer is filled with heat insulating material, and the inner wall of the furnace bag is evenly paved with electric heating wires, the top of the furnace cover is controlled by a lifting device, the lifting device comprises a hydraulic device and a connecting frame, the output end of the hydraulic device is connected to a rotating shaft through a rotating shaft sleeve, one end of the connecting frame is connected to the rotating shaft, and the other end is connected to the furnace cover, a temperature sensor is arranged inside the furnace cavity, and the temperature sensor is connected to an external control box through a signal.

2. The device for baking yellow steel drill according to claim 1, characterized in that: The connecting frame comprises four supporting columns arranged on the top of the furnace cover and a connecting plate fixed on the supporting columns, and one end of the connecting plate is sleeved on the top of the rotating shaft.

3. The device for baking yellow steel drill according to claim 1, characterized in that: The hydraulic device comprises a hydraulic rod and a driving device for driving the hydraulic rod to rise and fall. The outer wall of the furnace body is provided with at least one limit block, and the middle part of the limit block is provided with a limit hole adapted to the diameter of the hydraulic rod.

4. The device for baking yellow steel drill according to claim 3, characterized in that: The connecting frame is provided with two control buttons for respectively controlling the raising and lowering of the hydraulic rod.

5. The device for baking yellow steel drill according to claim 1, characterized in that: The heat equalizing device is a fan, a protective cover is arranged around the outer periphery of the fan, and a motor for controlling the rotation of the fan is arranged on the top of the furnace cover.

6. The device for baking yellow steel drill according to claim 1, characterized in that: A protective plate is arranged on the top of the furnace cavity, and thermal insulation cotton is arranged on the contact surface between the protective plate and the refractory bricks and in the interlayer.

7. The device for baking a steel drill yellow according to claim 1, characterized in that: The control box is provided with a temperature display screen, and the top of the control box is provided with an alarm light.

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