Guardrail processing equipment and recycling method

Abstract

The invention relates to the technical field of cutting, in particular to guardrail processing equipment which comprises a cutting device, the cutting device comprises a cutting assembly, a conveying belt and an electromagnetic clamp, and the cutting assembly is arranged to cut an embedded soil layer part at the bottom of a guardrail and a non-embedded soil layer part on the upper portion of the guardrail into two sections along a preset cutting line; the multiple sets of electromagnetic clamps are arranged on the surface of the conveying belt, the guardrails are fixedly clamped to the electromagnetic clamps and conveyed to the cutting assembly to be cut by the conveying belt, each set of electromagnetic clamps comprises two clamping areas, and after the guardrails are cut, the cut soil-containing cutting sections can still be clamped by chucks of the corresponding clamping areas; and the cut soil-free cutting sections are released from the chucks in the corresponding clamping areas after being continuously conveyed for a certain distance by the conveying belt, are unstable in response to excitation loss of the chucks in the corresponding clamping areas, fall to one side of the conveying belt under the action of gravity, and are directly recycled, so that the cutting efficiency is improved. And the soil-containing cutting section is recovered after the soil body is removed by adopting a matched post-treatment process.

Description

Technical Field

[0001] The present invention relates to the field of cutting technology, and in particular to a guardrail processing equipment and a recycling method based on laser cutting. Background Art

[0002] Highway guardrails are a type of strip-shaped protective energy-absorbing structure installed on the outside of a highway lane or in the central dividing strip. When an accident vehicle collides with a guardrail, the guardrail can absorb the collision energy by blocking, deforming itself, or climbing the vehicle, and buffer and guide it, thereby blocking the vehicle and reducing the degree of injury to the driver and passengers. Highway guardrail posts are an important component of highway guardrails. They are responsible for supporting and fixing guardrail panels or other guardrail components to ensure the stability and safety of the entire guardrail system.

[0003] After the highway guardrail posts are dismantled, the bottom of the posts is buried in the soil layer, and the soil will be firmly embedded in the posts. It is particularly difficult to remove the soil in the posts, making the highway guardrail posts unable to be recycled, resulting in waste. Laser cutting is a commonly used cutting method in metal pipe cutting. The laser beam is used to process and cut the material. The cutting speed is fast, the precision is high, and it is easy to realize automation. It is suitable for the segmentation and recycling of guardrails. However, there is no experience in the existing technology that can be used to segment guardrails using laser cutting technology, especially how to classify, collect and post-process different guardrail pipe sections during segmentation. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a guardrail processing equipment and a recycling method, which can quickly and effectively segment, classify and post-process the guardrail based on a laser cutting host and related supporting post-processing procedures.

[0005] The technical solution of the present invention is as follows:

[0006] A guardrail processing device comprises a cutting device, wherein the cutting device comprises a cutting assembly, a conveyor belt and an electromagnetic clamp;

[0007] The cutting assembly is configured to cut the soil-embedded portion of the bottom of the guardrail and the non-soil-embedded portion of the top into two sections along a preset cutting line, wherein one of the two sections after cutting is a soil-containing cutting section and the other is a soil-free cutting section;

[0008] A plurality of sets of electromagnetic clamps are arranged on the surface of the conveyor belt, and the guardrail is fixedly clamped by the electromagnetic clamps and transported by the conveyor belt to the cutting assembly for cutting;

[0009] Each group of the electromagnetic clamps includes two clamping areas, each clamping area includes at least one clamping head, before the guardrail is cut, the clamping head of one clamping area clamps the embedded soil layer part of the guardrail, and the clamping head of the other clamping area clamps the unembedded soil layer part of the guardrail, and the clamping positions of the two clamping areas on the guardrail are set as follows: after the guardrail is cut, the soil-containing cutting section after cutting can still be clamped by the clamping head of the corresponding clamping area, and then released from the clamping head of the corresponding clamping area after being conveyed by the conveyor belt for a distance; the soil-free cutting section after cutting loses stability in response to the demagnetization of the clamping head on the corresponding clamping area, and then falls to one side of the conveyor belt under the action of gravity;

[0010] The cutting device also includes a soil-free cutting segment collecting member arranged on one side of the conveyor belt, which is used to collect the soil-free cutting segment that falls to one side of the conveyor belt under the action of gravity.

[0011] In the guardrail processing equipment as described above, the release position is the end of the conveyor belt.

[0012] In the guardrail processing equipment as described above, the release method is: at the rotating position at the end of the conveyor belt, the soil-containing cutting segment is released from the chuck of the corresponding clamping area completely by gravity, or, at the rotating position at the end of the conveyor belt, the soil-containing cutting segment responds to the demagnetization of the chuck and is released from the chuck of the corresponding clamping area by gravity.

[0013] In the guardrail processing equipment as described above, each clamping area includes two clamps.

[0014] In the guardrail processing equipment as described above, the cutting assembly has a cutting head located above the conveyor belt and capable of moving along the extending direction of the cutting line.

[0015] In the guardrail processing equipment as described above, the cutting head is a laser cutting head.

[0016] In the guardrail processing equipment as described above, the soil-free cutting segment collecting piece is a hoistable box-type collecting piece.

[0017] In the guardrail processing equipment as described above, an inclined guide plate is arranged inside the box-type collecting piece, and the inclined guide plate automatically straightens the fallen cutting segment without soil.

[0018] The present invention also provides a guardrail recycling method using the guardrail processing equipment, comprising the following steps:

[0019] S1: The conveyor belt transports the guardrail fixedly clamped in the electromagnetic clamp to the cutting assembly;

[0020] S2: The cutting component cuts the embedded soil portion at the bottom of the guardrail and the unembedded soil portion at the top into two sections along a pre-set cutting line;

[0021] S3: The soil-free cutting section is directly recycled after cutting, and the soil-containing cutting section is recycled after the soil is removed.

[0022] In the guardrail recycling method as described above, the soil removal in step S3 is performed by mechanical treatment and / or liquid softening treatment.

[0023] The beneficial effects of the present invention are:

[0024] The present invention discloses a guardrail processing equipment and recycling method, which can quickly and effectively segment, classify and post-process the guardrail based on a laser cutting host (which can also be transformed into other high-energy beam cutting hosts such as plasma and electron beam) and related supporting post-processing procedures. In particular, the cutting device adopted has low investment and is easy to manufacture. The use of electromagnetic clamps simplifies the mechanical structure and control program. The working method is mobile and flexible. The supporting post-processing equipment can also remove the soil embedded in the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0026] In the attached picture:

[0027] Figure 1 It is a schematic diagram of the guardrail cutting processing scheme of the present invention.

[0028] Figure 2 This is a schematic structural diagram (front view) of the cutting device of the guardrail processing equipment of the present invention.

[0029] Figure 3 It is a schematic structural diagram (top view) of the cutting device of the guardrail processing equipment of the present invention.

[0030] Figure 4 It is a schematic diagram of the structure of the cutting device and the supporting post-processing process of the guardrail processing equipment of the present invention.

[0031] Figure 5 for Figure 4 An example of the structure of a soil pounding device used in the post-processing step.

[0032] Figure 6 for Figure 4 An example of the structure of the inner wall cleaning device used in the post-processing process.

[0033] The modules represented by the reference numerals in the figure are:

[0034] The meanings of the various reference numerals in the present invention are:

[0035] A, embedded in the soil layer, B, not embedded in the soil layer, L, cutting line;

[0036] 1. Cutting device, 1a. Cutting assembly, 1a1. Cutting head, 1b. Conveyor belt, 1c. Electromagnetic clamp, 1d. Collection part of cutting section without soil;

[0037] 2. soil pounding device, 2a. press machine, 2b. pounding die, 2b1. pounding lower die, 2b2. pounding upper die, 2b2a. pounding head, 2c. soil collecting box;

[0038] 3. Inner wall cleaning device, 3a. Softening liquid tank, 3b. Filter tank, 3c. Vibrating plate, 3d. Spring, 3e. Vibrating motor, 3f. Water pump A, 3g. Water pump B;

[0039] 4. Transmission device;

[0040] 5. Guardrail, 5a. Cutting section with soil, 5b. Cutting section without soil. DETAILED DESCRIPTION

[0041] Example 1

[0042] See also Figures 1 to 3 The present embodiment provides a guardrail processing equipment, which first includes a cutting device 1, and the cutting device 1 includes a cutting component 1a, a conveyor belt 1b and an electromagnetic clamp 1c.

[0043] The cutting assembly 1a is used to separate the embedded soil layer portion A at the bottom of the guardrail 5 and the unembedded soil layer portion B at the top along the Figure 1 The predetermined cutting line L shown in FIG. 1 is cut into two sections. Figure 2 and Figure 3 Among the two guardrails after cutting, one section is a soil-containing cutting section 5a, and the other section is a soil-free cutting section 5b.

[0044] The coordinated use of the conveyor belt 1b and the electromagnetic clamp 1c brings the advantages of flexibility and mobility to the cutting device of the present invention. Specifically, Figure 2 , Figure 3 As shown, a plurality of sets of electromagnetic clamps 1c are arranged on the surface of the conveyor belt 1b, and the guardrail 5 is fixedly clamped on the electromagnetic clamps 1c and transported by the conveyor belt 1b to the cutting assembly 1a for cutting.

[0045] In this embodiment, each group of the electromagnetic clamps 1c includes two clamping areas, each clamping area includes two clamps, that is, each group of electromagnetic clamps 1c includes four clamps. Before the guardrail 5 is cut, the two clamps in one clamping area clamp the embedded soil part A of the guardrail 5, and the two clamps in the other clamping area clamp the unembedded soil part B of the guardrail 5.

[0046] It should be noted that the four chucks in this embodiment are only examples, and the number of chucks can be increased, decreased or modified as long as the purpose of the present invention can be achieved.

[0047] In order to reduce the use of unnecessary workstation equipment, the present embodiment sets the clamping position of the two clamping areas on the guardrail 5 as follows: after the guardrail 5 is cut, the soil-containing cutting section 5a after cutting can still be clamped by the two clamps of the corresponding clamping area, and then be released from the two clamps of the corresponding clamping area after being further conveyed by the conveyor belt 1b for a distance, while the soil-free cutting section 5b after cutting becomes unstable in response to the demagnetization of the two clamps on the corresponding clamping area, and then falls to one side of the conveyor belt 1b under the action of gravity, combined with Figure 3 It can be seen that one end of the clamped guardrail 5 is far beyond the edge of the conveyor belt 1b, and the center of gravity of the cut section 5b without soil after cutting is beyond the edge of the conveyor belt 1b.

[0048] In order to collect the soil-free cutting segments 5b after cutting, as shown in the figure, the cutting device 1 also includes a soil-free cutting segment collecting piece 1d arranged on one side of the conveyor belt 1b, which is used to collect the soil-free cutting segments 5b that fall to one side of the conveyor belt 1b under the action of gravity. In this embodiment, the soil-free cutting segment collecting piece 1d is a hoistable box-type collecting piece, and an inclined guide plate is arranged inside. The inclined guide plate automatically straightens the fallen soil-free cutting segments 5b.

[0049] In this embodiment, the position where the soil-containing cutting section 5a is released is the end of the conveyor belt 1b. Figure 2 It can be seen that at the rotating position at the end of the conveyor belt 1b, the soil-containing cutting section 5a can be released from the clamping head of the corresponding clamping area. Since a lot of soil is embedded in the pipe body of the guardrail 5 and the deadweight is large, the soil-containing cutting section 5a can be completely released by gravity to get rid of the suction force of the electromagnetic clamp. However, if the suction force provided by the electromagnetic clamp is large, the soil-containing cutting section 5a can also be released from the clamping head of the corresponding clamping area in response to the demagnetization of the clamping head and by gravity.

[0050] The cutting assembly 1a in this embodiment has a cutting head 1a1 located above the conveyor belt 1b and capable of moving at least along the extension direction of the cutting line L. It preferably has multi-dimensional freedom of movement to freely adjust its position. The cutting head 1a1 in the present invention is a laser cutting head. Laser cutting is a cutting method currently commonly used in metal pipe cutting. The material is processed and cut by a laser beam. The cutting speed is fast, the precision is high, and it is easy to automate. It is suitable for segmenting and recycling guardrails.

[0051] However, after understanding the working principle of the present invention, the above-mentioned laser cutting head can also be extended to other high-energy beam cutting heads such as plasma, electron beam, etc.

[0052] The cutting device 1 is the main device of the present invention. The solution provided in this embodiment requires little investment and is easy to manufacture. The use of electromagnetic clamps and self-aligning workstation boxes simplifies the mechanical structure and control procedures, and the working mode is mobile and flexible.

[0053] Example 2

[0054] This embodiment is based on the cutting device 1 provided in Embodiment 1, and further provides a guardrail recycling method, comprising the following steps:

[0055] S1: The conveyor belt 1b transports the guardrail fixedly clamped by the electromagnetic clamp 1c to the cutting assembly 1a.

[0056] S2: The cutting assembly 1a cuts the embedded soil layer portion A at the bottom of the guardrail and the unembedded soil layer portion B at the top into two sections along a preset cutting line L.

[0057] S3: The soil-free cutting segment 5b is directly recycled after cutting, and the soil-containing cutting segment 5a is recycled after the soil is removed.

[0058] The recycling method of the cutting section 5b without soil has been described in detail in Example 1. As for the cutting section 5a containing soil, since the soil is firmly embedded in the guardrail, it is necessary to use a certain mechanical treatment and / or liquid softening treatment method to remove the embedded soil before it can be recycled. Figure 4-6 An exemplary supporting post-processing process is provided, which uses a soil pounding device 2 and an inner wall cleaning device 3 to perform post-processing.

[0059] like Figure 4 As shown, the soil-containing cutting segment 5a after cutting in Example 1 is released to a transmission device 4 at the end of the conveyor belt 1b, and is transmitted by the transmission device 4 to the soil pounding device 2, which is used to press out the soil in the soil-containing cutting segment 5a.

[0060] In this embodiment, the transmission device 4 can be a common conveyor belt.

[0061] like Figure 5 As shown, the soil pounding device 2 illustrated in this embodiment includes a press 2a and an extrusion die 2b, wherein the extrusion die 2b includes an extrusion lower die 2b1 and an extrusion upper die 2b2, wherein the extrusion lower die 2b2 is arranged on the workbench of the press 2a, and the soil-containing cutting section 5a of the guardrail 5 is vertically placed on the extrusion lower die 2b1, and the extrusion upper die 2b2 is fixed on the slider of the press 2a and moves up and down with the slider, and the extrusion upper die 2b2 is provided with a pounding head 2b2a matching the inner hole of the soil-containing cutting section 5a, and a soil collection box 2c is placed below the extrusion lower die 2b2. As the pounding head 2b2a moves downward driven by the slider, the soil in the soil-containing cutting section 5a is pounded out by the pounding head 2b2a and falls into the soil collection box 2c.

[0062] In addition to having an outer diameter smaller than the inner diameter of the guardrail 5, the outer wall of the tamping head 2b2a used in the present invention is also provided with a plurality of cutting ribs distributed along the circumferential direction (not shown in the figure). When the tamping head 2b2a scrapes the inner wall of the soil-containing cutting section 5a, the cutting ribs leave a plurality of grooves on the soil remaining on the inner wall of the soil-containing cutting section 5a, which is convenient for subsequent softening and infiltration.

[0063] Since soil still remains on the inner wall of the soil-containing cutting section 5a after being processed by the soil-pulling device 2 and is difficult to remove using general methods, this embodiment provides an inner wall cleaning device 3, which uses softening and infiltration combined with vibration to remove the soil remaining on the inner wall of the soil-containing cutting section 5a after the soil is pressed out.

[0064] like Figure 6 As shown, the inner wall cleaning device 3 illustrated in this embodiment includes a softening liquid tank 3a and a vibrating plate 3c arranged in the softening liquid tank 3a, wherein the softening liquid tank 3a contains softening liquid (water) and overflows the surface of the vibrating plate 3c, and the soil-containing cutting section 5a is placed on the vibrating plate 3c.

[0065] In this embodiment, the bottom of the vibration plate 3c is connected to the bottom of the softening liquid tank 3a through a spring 3d. The vibration mechanism used is a vibration motor 3e arranged on the top of the vibration plate 3c. The vibration motor 3e can drive the vibration plate 3c to vibrate, so that the soil-containing cutting section 5a placed on the vibration plate 3c vibrates, so that the residual soil inside the soil-containing cutting section 5a immersed in the softening liquid and softened is vibrated and removed.

[0066] It can be seen from the figure that the vibration plate 3c of this embodiment has a placement platform arranged along the axial direction of the soil-containing cutting section 5a, and the vibration plate 3c itself is also provided with a through hole corresponding to the position of the placement platform. The placement platform does not need to have a complicated loose and tight clamping function, but only needs to be able to support the soil-containing cutting section 5a so that it can be stably vibrated, and the fallen soil can sink from the through hole.

[0067] It should be noted that the means of vibrating the vibration plate 3c is a preferred means in this embodiment but not the only means, and modifications that do not deviate from the concept of the present invention are still within the protection scope of the present invention.

[0068] To ensure that the softening liquid in the softening liquid tank 3a is clean, the softening liquid tank 3a is provided with a water purification device, which includes a filter box 3b arranged next to the softening liquid tank 3a, and a water pump A3f is arranged between the bottom of the softening liquid tank 3a and the top of the filter box 3b. The dirty water at the bottom of the softening liquid tank 3a is pumped to the top of the filter box 3b by the water pump A3f and filtered by the filter screen arranged in the filter box 3b. After being filtered by the filter screen, the clean water at the bottom of the filter box 3b is pumped to the softening liquid tank 3a by the water pump B3g for recycling.

[0069] It should be noted that the water purification device provided for the softening liquid tank 3a is also a preferred means in this embodiment but not the only means, and modifications that do not deviate from the concept of the present invention are still within the protection scope of the present invention.

Claims

1. A guardrail processing device capable of removing soil, comprising a soil removing device (2) and an inner wall cleaning device (3), characterized in that: The soil pounding device (2) comprises a press (2a) and an extrusion die (2b), wherein the extrusion die (2b) comprises an extrusion lower die (2b1) and an extrusion upper die (2b2), wherein the extrusion lower die (2b1) is arranged on a workbench of the press (2a), the soil-containing cutting section (5a) of the guardrail (5) is vertically placed on the extrusion lower die (2b1), the extrusion upper die (2b2) ​​is fixed on a slider of the press (2a) and moves up and down with the slider, the extrusion upper die (2b2) ​​is provided with a pounding head (2b2a) matching the inner hole of the soil-containing cutting section (5a), and a soil collection box (2c) is placed below the extrusion lower die (2b1), and as the pounding head (2b2a) moves downward driven by the slider, the soil in the soil-containing cutting section (5a) is pounded out by the pounding head (2b2a) and falls into the soil collection box (2c); The inner wall cleaning device (3) comprises a softening liquid tank (3a) and a vibrating plate (3c) arranged in the softening liquid tank (3a). The softening liquid is contained in the softening liquid tank (3a) and overflows the surface of the vibrating plate (3c). The soil-containing cutting section (5a) is placed on the vibrating plate (3c). The bottom of the vibrating plate (3c) is connected to the bottom of the softening liquid tank (3a) through a spring (3d). The vibration mechanism used is a vibration motor (3e) arranged on the top of the vibrating plate (3c). The vibration motor (3e) drives the vibrating plate (3c) to vibrate, thereby vibrating the soil-containing cutting section (5a) placed on the vibrating plate (3c), so that the residual soil inside the soil-containing cutting section (5a) soaked in the softening liquid and softened is vibrated and removed. The vibrating plate (3c) has a placement table arranged along the axial direction of the soil-containing cutting section (5a), and the vibrating plate (3c) itself is also provided with a through hole corresponding to the position of the placement table.

2. A guardrail processing equipment according to claim 1, characterized in that: The outer diameter of the ramming head (2b2a) is smaller than the inner diameter of the guardrail (5), and the outer wall of the ramming head (2b2a) is provided with a plurality of cutting ribs distributed along the circumferential direction.

3. A guardrail processing equipment according to claim 1, characterized in that: The softening liquid tank (3a) is provided with a water purification device.

4. A guardrail processing equipment according to claim 3, characterized in that: The water purification device comprises a filter box (3b) arranged next to the softening liquid box (3a).

5. A guardrail processing equipment according to claim 4, characterized in that: A water pump A (3f) is provided between the bottom of the softening liquid tank (3a) and the top of the filter tank (3b), and dirty water at the bottom of the softening liquid tank (3a) is pumped to the top of the filter tank (3b) by the water pump A (3f) and filtered by a filter screen provided in the filter tank (3b).

6. A guardrail processing equipment according to claim 5, characterized in that: It also includes a water pump B (3g). After the dirty water is filtered through the filter screen, the clean water at the bottom of the filter box (3b) is pumped to the softening liquid tank (3a) through the water pump B (3g) for circulation.

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