Railway line metal mesh protective fence production device

Abstract

The utility model relates to the technical field of protective fence production, in particular to a railway line metal mesh protective fence production device which comprises a suspension conveying device, and a workpiece feeding table, a control table, a workpiece preheating furnace, a fluidized bed device, a powder curing furnace and a workpiece discharging table are sequentially arranged below the suspension conveying device in the moving direction of the suspension conveying device. According to the production device, the suspension conveying device is arranged to convey workpieces, the fluidized bed is controlled to ascend and descend through the console, standardized production and automatic operation of the technological process are achieved, and the problem that the quality of finished protective fences is inconsistent during manual operation is solved; when coating operation is carried out, a workpiece is preheated in the preheating furnace firstly, so that residual oil stains and water on the surface of the workpiece can be volatilized in the preheating process, a coating film is thickened, and coating defects are avoided; a fluidized bed dip-coating method is adopted, the coating quality is good, loss of powder coating is little, powder basically does not fly in the operation process, and a powder recovery device is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of protective fence production, in particular to a production device for railway line metal mesh protective fences. Background Art

[0002] Railway line protection fences are commonly used along railway lines to protect the railway route. During production, the fences are coated with powder resin to increase durability and corrosion resistance, extend their service life, and improve nighttime visibility to reduce traffic accidents.

[0003] At present, when coating protective fence workpieces, epoxy resin powder is usually placed in a powder fluidized bed. The protective fence workpiece is first preheated in a heating furnace, and then the preheated protective fence workpiece is placed in a powder fluidized bed for dip coating. After the dip coating is completed, the worker uses a clamp to take out the protective fence workpiece, and finally places it in a curing furnace for curing, completing the coating process of the protective fence.

[0004] However, in the above-mentioned existing technical solutions, workers process the protective fences in a purely manual manner with a low degree of automation. In addition, the resin layer coated on the protective fences taken out of the powder fluidized bed may be uneven, which leads to inconsistent quality of the protective fences. Utility Model Content

[0005] In response to the existing problems, the utility model provides a production device for metal mesh protective fences for railway lines, aiming to solve the problems mentioned in the background technology of poor automation and unevenness in the dip-coated resin layer, which leads to inconsistent quality of the protective fences.

[0006] In order to solve the above problems, the utility model provides a production device for metal mesh protective fences of railway lines, including a cutting component, a welding and bending machine and a hanging conveying device, wherein an upper table, a workpiece preheating furnace, a fluidized bed device, a powder solidification furnace and a lower table are sequentially arranged below the hanging conveying device along the movement direction of the hanging conveying device, and the fluidized bed device includes a bracket arranged between the workpiece preheating furnace and the powder solidification furnace, a motor is installed at the center of the top of the bracket, the output end of the motor is connected to a motor reducer, and the output end of the motor reducer is connected to an active The cam is provided with a first gear and a second gear on both sides of the cam, and the second gear is connected to the third gear at both ends of the cam.

[0007] Furthermore, the cutting assembly includes a wire-releasing disk, a guide mechanism is provided on one side of the wire-releasing disk, and a straightening and cutting machine is provided on the side of the guide mechanism away from the wire-releasing disk.

[0008] Furthermore, the fluidized bed device is located in an underground trench between the workpiece preheating furnace and the powder solidification furnace.

[0009] Furthermore, slide rails are provided on both sides of the legs of the bracket close to the lifting platform, and the slide rails are slidably connected to the slide groove frame.

[0010] Furthermore, a control console is provided on the side of the loading platform.

[0011] Furthermore, the suspension conveying device, the motor and the control console are electrically connected.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The production device of the utility model transports the workpiece by setting a hanging conveying device and controls the fluidized bed to rise and fall through the console, thereby realizing standardized production and automated operation of the process flow, avoiding the problem of inconsistent quality of the finished protective fence during manual operation.

[0014] 2. When the production device of the present invention is performing coating operations, the workpiece is first preheated in a preheating furnace, so that the remaining oil stains and moisture on the surface of the workpiece can be volatilized during the preheating process, making the coating film thicker and avoiding coating defects.

[0015] 3. The production device of the utility model adopts the fluidized bed dipping method, which has good coating quality, little loss of powder coating, high coating utilization rate, and basically no powder flying during the operation, without the need for a powder recovery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a production device for metal mesh protective fences for railway lines;

[0017] Figure 2 A schematic diagram of a straightening and cutting machine and a welding and bending machine portion of a production device for metal mesh protective fences for railway lines;

[0018] Figure 3 This is a partial schematic diagram of a coating production line for a railway metal mesh protective fence production device;

[0019] Figure 4 A partial schematic diagram of a fluidized bed device for producing metal mesh protective fences for railway lines;

[0020] Figure 5 A partial schematic diagram of a fluidized bed device for producing metal mesh protective fences for railway lines;

[0021] Figure 6 A partial schematic diagram of a fluidized bed device for producing metal mesh protective fences for railway lines;

[0022] Figure 7 This is a schematic elevation diagram of a fluidized bed device for producing metal mesh protective fencing for railway lines;

[0023] Figure 8 A schematic diagram of a production device for metal mesh protective fences for railway lines Figure 1 ;

[0024] Figure 9 A schematic diagram of a production device for metal mesh protective fences for railway lines Figure 2 ;

[0025] Figure 10 A schematic diagram of a production device for metal mesh protective fences for railway lines Figure 3 ;

[0026] Figure 11 A schematic diagram of a production device for metal mesh protective fences for railway lines Figure 4 ;

[0027] 1. Cutting assembly; 101. Wire unwinding reel; 102. Guide mechanism; 103. Straightening and cutting machine; 2. Welding and bending machine; 3. Suspension conveyor device; 4. Loading table; 5. Workpiece preheating furnace; 6. Fluidized bed device; 601. Bracket; 602. Motor; 603. Motor reducer; 604. Driving wheel; 605. Driving shaft; 606. Driven shaft; 607. First driven wheel; 608. Second driven wheel; 609. Third driven wheel; 610. First chain; 611. Second chain; 612. Counterweight plate; 613. Slide rack; 614. Lifting platform; 615. Fluidized bed; 616. Slide rail; 7. Powder curing furnace; 8. Unloading table; 9. Control console. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7 The utility model provides a production device for railway line metal mesh protective fence, including a cutting component 1, a welding and bending machine 2 and a hanging conveyor 3, below the hanging conveyor 3 are arranged in sequence along the movement direction of the hanging conveyor 3. An upper table 4, a workpiece preheating furnace 5, a fluidized bed device 6, a powder solidification furnace 7, and a lower table 8, the fluidized bed device 6 includes a bracket 601 arranged between the workpiece preheating furnace 5 and the powder solidification furnace 7, a motor 602 is installed at the center of the top of the bracket 601, the output end of the motor 602 is connected to a motor reducer 603, the output end of the motor reducer 603 is connected to a driving wheel 604, the top of the bracket 601 and located on both sides of the motor 602 are divided into A driving shaft 605 and a driven shaft 606 are separately provided for rotation, a first driven wheel 607 is sleeved in the center of the driving shaft 605, a second driven wheel 608 is sleeved at both ends of the driving shaft 605, a third driven wheel 609 is sleeved at both ends of the driven shaft 606, the driving wheel 604 and the first driven wheel 607 are connected to each other through a first chain 610, the second driven wheel 608 and the third driven wheel 609 are connected to each other through a second chain 611, the two ends of the second chain 611 are respectively connected to a counterweight plate 612 and a lifting platform 614, a slide frame 613 is provided at both ends of the lifting platform 614 and on one side close to the bracket 601, and a fluidized bed 615 is provided above the lifting platform 614.

[0030] The main dimensions of the drying tunnels of the workpiece preheating furnace 5 and the powder solidification furnace 7 are lengthened and enlarged compared with the past. Lengthening the cycle by one increases the distance between the workpiece and the furnace door to better protect the furnace door from opening and closing.

[0031] By adopting the above technical solution, the heat source can be better and more fully utilized. The external splicing adopts a through-welding process to prevent temperature leakage in the drying tunnel. The high-temperature resistant plug-in fan is used, which has a good insulation effect and can better utilize the heat source.

[0032] Among them, the material of the elevator's bracket 601 is enlarged and thickened to ensure the elevator's smooth operation and longer service life. At the same time, the transmission chain adopts double chains to ensure the safe operation and service life of the lifting mechanism.

[0033] Among them, the motor 602 and reducer 603 of the elevator are designed to be 1 meter above the ground.

[0034] By adopting the above technical solution, compared with the previous method of placing the driving motor under the ground, the damage to the motor and the reducer caused by falling powder is reduced, the use of the motor 602 and the reducer 603 can be protected, and at the same time, the maintenance of the motor 602 and the reducer 603 is convenient.

[0035] The cutting assembly 1 includes a wire-releasing disk 101 , a guide mechanism 102 is provided on one side of the wire-releasing disk 101 , and a straightening and cutting machine 103 is provided on the side of the guide mechanism 102 away from the wire-releasing disk 101 .

[0036] The fluidized bed device 6 is located in an underground trench between the workpiece preheating furnace 5 and the powder solidification furnace 7 .

[0037] The support legs of the bracket 601 close to the lifting platform 614 are provided with slide rails 616 on both sides, and the slide rails 616 are slidably connected to the slide slot frame 613 .

[0038] Wherein, a control console 9 is provided on the side of the loading platform 4 .

[0039] The suspension conveying device 3 , the motor 602 and the control console 9 are electrically connected.

[0040] Among them, the control console 9 and the motor 602 are all connected by cables, which reduces damage to the wires during construction and improves the safety and reliability of the entire line.

[0041] See also Figures 8-11 , various types of guardrails of the production line of this utility model;

[0042] Among them, the product shows Figure 1The guardrail shown is suitable for heavy-load railways in sparsely populated deserts and Gobi areas, passenger and freight lines with speeds of 120km / h and above, or rebuilt railways where fences can only be set up on the shoulder. The unit length of the guardrail is 3.0m; the vertical height from the ground to the top surface of the mesh is 1.8m, and the upper 300mm of the mesh is folded outward at 30°; the mesh specification is 50mmx100mm.

[0043] Among them, the product shows Figure 2 The protective fence shown is suitable for high-speed and intercity railways in remote desert and Gobi areas with a ground slope of less than 12 degrees. The 3.0m unit is suitable for areas with a ground slope of less than 6°, and the 1.59m unit is suitable for slopes between 6° and 12°. The height from the ground to the top of the upper sill is 1.8m, the vertical height of the upper barbed wire cage is 0.5m, and the total protective height is 2.3m.

[0044] Among them, the product shows Figure 3 The protective fence shown is suitable for high-speed railway and intercity railway protective fences with a ground longitudinal slope greater than 12°. The length of the protective fence unit is 3.0m; the height from the ground to the top of the column is 2.2m, the height of the upper barbed wire cage is 0.5m, the total protection height is 2.7m, and the horizontal and vertical tubes are welded; the gap between the vertical tubes is 127mm except for the two sides which are 126mm.

[0045] Among them, the product shows Figure 4 Shown are double-opening fence gates with protective heights of 1.8m and 2.7m.

[0046] Specific embodiments of the present utility model:

[0047] When in use, the steel bars are first wound on the wire reel 101, and the steel bars pass through the guide mechanism 102 and enter the straightening and cutting machine 103. The straightening and cutting machine 103 straightens and cuts them into strip steel bars that meet the requirements. Then the strip steel bars are welded into a fence in the welding and bending machine 2 and bent into a finished protective fence workpiece.

[0048] During the coating operation, the workpiece is mounted on the hanging conveyor 3 at the loading platform 4, and the hanging conveyor 3 is started through the control console 9 to allow the workpiece to enter the workpiece preheating furnace 5. After 8 minutes of high-temperature preheating, the workpiece continues to move forward to the fluidized bed device 6 station under the drive of the hanging conveyor 3 and then stops; the motor 602 is started through the control console 9, and the motor 602 drives the driving shaft 605 to rotate through the driving wheel 604, the first driven wheel 607 and the first chain 610 arranged at the output end, and the second driven wheel 608 on the driving shaft 605 drives the driven shaft 606 to rotate through the second chain 611 and the third driven wheel 609, and the rotation of the second chain 611 drives the driven shaft 606 to rotate. The lifting platform 614 and the counterweight plate 612 connected at both ends move up and down, wherein the lifting platform 614 moves smoothly on the slide rail 616 through the slide frame 613; the fluidized bed 615 rises, and the powder in the fluidized state in the fluidized bed 615 submerges the hot workpiece in the powder, so that the workpiece is covered with powder; after the powdering operation is completed, the fluidized bed 615 is controlled by the control console 9 to descend and leave the hot workpiece; the powder attached to the surface of the workpiece is initially melted and leveled under the high temperature of the workpiece itself, and continues to enter the powder curing furnace 7 under the traction of the suspension conveyor device 3 for re-baking; after the second baking is completed, the workpiece is unloaded at the unloading platform 8 under the traction of the suspension conveyor device 3, completing an operation process.

[0049] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A production device for metal mesh protective fences for railway lines, comprising a cutting assembly (1), a welding and bending machine (2) and a hanging conveying device (3), characterized in that: Below the suspension conveying device (3), there are arranged an upper table (4), a workpiece preheating furnace (5), a fluidized bed device (6), a powder solidification furnace (7), and a lower table (8) in sequence along the movement direction of the suspension conveying device (3). The fluidized bed device (6) includes a bracket (601) arranged between the workpiece preheating furnace (5) and the powder solidification furnace (7). A motor (602) is installed at the center of the top of the bracket (601). The output end of the motor (602) is connected to a motor reducer (603). The output end of the motor reducer (603) is connected to a driving wheel (604). A driving shaft (605) and a driven shaft (606) are respectively rotatably arranged at the top of the bracket (601) and located on both sides of the motor (602). A first driven wheel (607) is sleeved on the center of the shaft (605), a second driven wheel (608) is sleeved on both ends of the driving shaft (605), and a third driven wheel (609) is sleeved on both ends of the driven shaft (606). The driving wheel (604) and the first driven wheel (607) are connected to each other via a first chain (610), and the second driven wheel (608) and the third driven wheel (609) are connected to each other via a second chain (611). The two ends of the second chain (611) are respectively connected to a counterweight plate (612) and a lifting platform (614). Slide racks (613) are provided at both ends of the lifting platform (614) and on one side close to the bracket (601). A fluidized bed (615) is provided above the lifting platform (614).

2. The production device for railway line metal mesh protective fence according to claim 1, characterized in that: The cutting assembly (1) comprises a wire-releasing disk (101), a guide mechanism (102) is provided on one side of the wire-releasing disk (101), and a straightening and cutting machine (103) is provided on the side of the guide mechanism (102) away from the wire-releasing disk (101).

3. The railway line metal mesh protective fence production device according to claim 1, characterized in that: The fluidized bed device (6) is located in an underground trench between the workpiece preheating furnace (5) and the powder solidification furnace (7).

4. The railway line metal mesh protective fence production device according to claim 1, characterized in that: Slide rails (616) are provided on both sides of the legs of the bracket (601) close to the lifting platform (614), and the slide rails (616) are slidably connected to the slide frame (613).

5. The railway line metal mesh protective fence production device according to claim 1, characterized in that: A control console (9) is provided on the side of the loading platform (4).

6. The railway line metal mesh protective fence production device according to claim 5, characterized in that: The suspension conveying device (3), the motor (602) and the control console (9) are electrically connected.

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