A preheating device for steel plate before shot blasting
By introducing an adjustable steel plate preheating device into the shot blasting machine, and using contact switches and sliding supports to control the flame nozzle, the problem of gas waste in the flame preheating of narrow steel plates was solved, achieving gas saving and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO EVERGLORY MASCH CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-07-07
AI Technical Summary
Existing shot blasting machines waste fuel during flame preheating when processing narrow steel plates, leading to increased costs.
An adjustable preheating device for steel plates before shot blasting was designed. By setting adjustable contact switches and sliding supports, the opening and closing of the flame nozzles are controlled, so that the steel plates are precisely heated only on both sides or in the middle, avoiding unnecessary gas ejection.
This resulted in gas savings and reduced processing costs.
Smart Images
Figure CN224464468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an adjustable steel plate preheating treatment device before shot blasting, belonging to the field of metal surface treatment. Background Technology
[0002] Generally, before shot blasting, the pre-treated steel plate is preheated with flame. In the past, the ignition nozzles with solenoid valves on the flame platform were all opened when needed and closed when needed. If the flame preheating is needed for a narrow steel plate, all the ignition nozzles with solenoid valves on the flame platform would be opened, which would cause the ignition nozzles with solenoid valves on both sides to burn dry, resulting in a waste of gas. Therefore, in order to save gas, a new technical solution is needed. Utility Model Content
[0003] This utility model provides an adjustable steel plate preheating treatment device before shot blasting to solve existing problems. It includes: an external flame platform, a left gas pipe, a left ignition nozzle with a solenoid valve, a left air inlet pipe, a middle gas pipe, a middle ignition nozzle with a solenoid valve, a middle air inlet pipe, a right gas pipe, a right air inlet pipe, a right ignition nozzle with a solenoid valve, a left contact switch, a right contact switch, a left sliding bracket, a right sliding bracket, a left slide rail, a right slide rail, a worktable, cables, wiring, a power switch, and a worktable electric roller motor switch. The external flame platform is equipped with the left gas pipe, the middle gas pipe, and the right gas pipe. The left gas pipe... The system includes a left-side ignition nozzle with a solenoid valve, a middle-side ignition nozzle with a solenoid valve on the middle gas pipe, and a right-side ignition nozzle with a solenoid valve on the right gas pipe. The left gas pipe is vertically connected to the left intake pipe, the middle gas pipe is vertically connected to the middle intake pipe, and the right gas pipe is vertically connected to the right intake pipe. A workbench is located below the external flame platform. An electric roller is mounted on the workbench, which can hold a pre-treated steel plate. Left and right slide rails are correspondingly located on both sides of the workbench. A left sliding bracket with a left contact switch is mounted on the left slide rail, and a right sliding bracket with a right contact switch is mounted on the right slide rail.
[0004] Preferably, the left and right contact switches are connected to the left and right electromagnetic ignition nozzles installed on the left and right gas pipes respectively via wiring.
[0005] Preferably, when the left and right contact switches are open, the left and right electromagnetic ignition nozzles are open; when the left and right contact switches are closed, the left and right electromagnetic ignition nozzles are closed. A middle electromagnetic ignition nozzle is installed on the middle gas pipe, and the middle electromagnetic ignition nozzle is connected to the power switch via wiring.
[0006] Preferably, the cable is connected to a power switch, and the power switch is connected to the left and right contact switches and the worktable electric roller motor switch through wiring.
[0007] Compared with the prior art, this utility model has the following advantages and effects: it saves gas and reduces costs. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of an adjustable steel plate preheating treatment device before shot blasting, according to this scheme.
[0009] Figure 2 This is a schematic diagram of the wiring of each switch part of an adjustable steel plate preheating treatment device before shot blasting in this scheme.
[0010] In the diagram: 1. External flame stand; 2. Left gas pipe; 3. Left ignition nozzle with solenoid valve; 4. Left air intake pipe; 5. Middle ignition nozzle with solenoid valve; 6. Middle gas pipe; 7. Middle air intake pipe; 8. Right ignition nozzle with solenoid valve; 9. Right air intake pipe; 10. Right gas pipe; 11. Left contact switch; 12. Left sliding bracket; 13. Left slide rail; 14. Pre-treated steel plate; 15. Workbench; 16. Right slide rail; 17. Right sliding bracket; 18. Right contact switch; 19. Cable; 20. Wiring. Detailed Implementation
[0011] To implement this solution, the following components need to be described in advance: All of the following components are external or purchased externally: External flame stand 1, left gas pipe 1, left ignition nozzle with solenoid valve 3, left air intake pipe 4, middle ignition nozzle with solenoid valve 5, middle gas pipe 6, middle air intake pipe 7, right ignition nozzle with solenoid valve 8, right air intake pipe 9, right gas pipe 10, left contact switch 11, left sliding bracket 12, left slide rail 13, pre-treated steel plate 14, workbench 15, right slide rail 16, right sliding bracket 17, right contact switch 1 8. Cable 19, wiring 10; the other end of the left sliding bracket 12 and the right sliding bracket 17 includes a pulley with a brake handle; the left slide rail 13 and the right slide rail 16 are provided with pulley grooves; the workbench 10 is an external complete set of equipment, and the workbench 15 is provided with rollers and rollers on the table surface, and is driven by a chain and roller motor; the left ignition nozzle 3 with a solenoid valve, the middle ignition nozzle 5 with a solenoid valve, and the right ignition nozzle 8 with a solenoid valve are all provided with switches; the external flame platform 1 is set on the frame of the external through shot blasting machine.
[0012] See Figure 1The external flame platform 1 is equipped with a left gas pipe 2, a middle gas pipe 6, and a right gas pipe 10. A left ignition nozzle 3 with a solenoid valve is mounted on the left gas pipe 2, a middle ignition nozzle 5 with a solenoid valve is mounted on the middle gas pipe 6, and a right ignition nozzle 8 with a solenoid valve is mounted on the right gas pipe 10. The left gas pipe 2 is vertically connected to and communicates with the left air intake pipe 4, the middle gas pipe 6 is vertically connected to and communicates with the middle air intake pipe 7, and the right gas pipe 10 is vertically connected to and communicates with the right air intake pipe 9. A workbench 15 is located below the external flame platform 1, and an electric roller is mounted on the surface of the workbench 15. The roller can hold a pre-treated steel plate 14. The worktable 15 has a left slide rail 13 and a right slide rail 16 on either side. A left sliding bracket 12 is mounted on the left slide rail 13, and a left contact switch 11 is mounted on the left sliding bracket 12. A right sliding bracket 17 is mounted on the right slide rail 16, and a right contact switch 18 is mounted on the right sliding bracket 16. The left gas pipe 2, the middle gas pipe 6, and the right gas pipe 10 are all closed at both ends and independent. They have the same diameter and are all made of metal. The left slide rail 13 and the right slide rail 16 have the same structure, dimensions, and material. The left sliding bracket 13... 2. The left sliding bracket 11 and the right sliding bracket 18 have the same structure, size, and material as the right sliding bracket 17. The left contact switch 11 and the right contact switch 18 have the same structure, size, and material. The left contact switch 11 and the right contact switch 18 are respectively located at one end of the left sliding bracket 12 and the right sliding bracket 17. The left slide rail 13 and the right slide rail 16 are provided with slide grooves perpendicular to the worktable 15. The left slide rail 13 and the right slide rail 16 are perpendicular to the worktable 15. The other end of the left sliding bracket 12 and the right sliding bracket 17 are respectively connected to pulleys with brake handles, which can be moved manually left and right on the left slide rail 13 and the right slide rail 17. The left sliding bracket 12 and the right sliding bracket 17 move outward or inward on the pulley grooves of the left slide rail 13 and the right slide rail 16 via the pulleys with brake handles at one end of each of them. At the same time, the contact switches 11 and 18 at the other end of the left sliding bracket 12 and the right sliding bracket 17 also move to contact or move away from the two sides of the pre-treated steel plate 14, so as to detect the pre-treated steel plate 14.
[0013] See Figure 2 After the cable is connected to the control power supply on the external shot blasting machine, the cable is connected to the power switch. The power switch is connected to the left and right contact switches 11 and 18 and the worktable electric roller motor switch through wiring. Each switch and wiring is connected in series separately. The left and right contact switches 11 and 18 are connected to the left and right electromagnetic ignition nozzles 3 and 8 installed on the left and right gas pipes through wiring.
[0014] See Figure 1 , Figure 2When the left and right contact switches 11 and 18 are open, the left and right electromagnetic ignition nozzles 3 and 8 are open; when the left and right contact switches 11 and 18 are closed, the left and right electromagnetic ignition nozzles 3 and 8 are closed. A middle electromagnetic ignition nozzle 5 is installed on the central gas pipe 6, and the middle electromagnetic ignition nozzle 5 is connected to a power switch via wiring. Since the left and right contact switches 11 and 18 of the left sliding bracket 12 are connected to the left sliding bracket 12 and the right sliding bracket 17, and the sliding brackets 12 and 17 are respectively installed on the left slide rail 13 and the right slide rail 16 and can move left and right or inward and outward respectively, when manually operated, such as by contacting the left and right contact switches 11 and 18 with both sides of the pre-treated steel plate 14, the left... When the switches of the ignition nozzle 3 with a solenoid valve and the right ignition nozzle 8 with a solenoid valve are turned on, the gas is ejected and ignited, initiating heating of both sides of the pre-treated steel plate 14. When the left and right contact switches 11 and 18 are manually operated away from the sides of the pre-treated steel plate 14, the switches of the left and right ignition nozzles 3 and 8 with solenoid valves will not be turned on, the gas will not be ejected and ignited, and heating of both sides of the pre-treated steel plate 14 will not be implemented. When the nozzle 5 with electromagnetic ignition in the middle is connected to an external power switch via wiring, the switch of the nozzle 5 with electromagnetic ignition in the middle is turned on, the gas is ejected and ignited, and pre-treatment heating of the middle part of the pre-treated steel plate 14 can be implemented. The settings and connections described in this solution include welding or threaded connections.
[0015] This invention enables manual operation of the left and right contact switches 11 and 18 to contact both sides of the pre-treated steel plate 14 when flame heating treatment is performed on a relatively narrow pre-treated steel plate 14. This allows the left and right ignition nozzles 3 and 8 with solenoid valves to be automatically shut off, thereby saving gas and reducing costs.
[0016] Through the above description and embodiments, some technical solutions of this utility model have been disclosed. This utility model also includes other solutions. Any changes or modifications made to this utility model by those skilled in the art should also fall within the protection scope of this utility model.
Claims
1. An adjustable preheating treatment device for steel plates before shot blasting, characterized in that: It includes: The external flame platform includes a left gas pipe, a left ignition nozzle with a solenoid valve, a left air intake pipe, a middle gas pipe, a middle ignition nozzle with a solenoid valve, a middle air intake pipe, a right gas pipe, a right air intake pipe, a right ignition nozzle with a solenoid valve, a left contact switch, a right contact switch, a left sliding bracket, a right sliding bracket, a left slide rail, a right slide rail, a worktable, cables, wiring, a power switch, and a worktable electric roller motor switch. The external flame platform is equipped with a left gas pipe, a middle gas pipe, and a right gas pipe. A left ignition nozzle with a solenoid valve is mounted on the left gas pipe, and a middle gas nozzle with a solenoid valve is mounted on the middle gas pipe. An ignition nozzle with a solenoid valve is installed on the middle gas pipe, and a right ignition nozzle with a solenoid valve is installed on the right gas pipe. The left gas pipe is vertically connected to the left air intake pipe, the middle gas pipe is vertically connected to the middle air intake pipe, and the right gas pipe is vertically connected to the right air intake pipe. A workbench is installed below the external flame platform. An electric roller is installed on the workbench, and a pre-treated steel plate can be placed on the electric roller. A left slide rail and a right slide rail are respectively installed on both sides of the workbench. A left sliding bracket is installed on the left slide rail, and a left contact switch is installed on the left sliding bracket. A right sliding bracket is installed on the right slide rail, and a right contact switch is installed on the right sliding bracket.
2. The adjustable steel plate preheating treatment device before shot blasting according to claim 1, characterized in that: The left and right contact switches are respectively connected to the left and right electromagnetic ignition nozzles installed on the left and right gas pipes via wiring.
3. The adjustable steel plate preheating treatment device before shot blasting according to claim 1, characterized in that: When the left and right contact switches are open, the left and right electromagnetic ignition nozzles are open; when the left and right contact switches are closed, the left and right electromagnetic ignition nozzles are closed. A middle electromagnetic ignition nozzle is installed on the middle gas pipe, and the middle electromagnetic ignition nozzle is connected to the power switch via wiring.
4. The adjustable steel plate preheating treatment device before shot blasting according to claim 1, characterized in that: The cable is connected to the power switch, which is connected to the left and right contact switches and the worktable electric roller motor switch via wiring.