Guardrail forming device

Abstract

The utility model discloses a guardrail forming device in the technical field of guardrail processing, which comprises a leveling machine and a forming machine, and further comprises a material guide roller group and a punching and cutting machine, the leveling machine, the punching and cutting machine, the material guide roller group and the forming machine are sequentially arranged, the punching and cutting machine comprises a punching and cutting die, and the material guide roller group and the forming machine are sequentially arranged. A punching die is arranged between the material guiding roller set and the punching and cutting-off die, the punching and cutting-off die comprises a first upper die plate and a first lower die plate, a plurality of first punches and cutting-off punches are fixed to the first upper die plate, and the sides, close to each other, of the first lower die plate and the cutting-off punches are arranged to be vertical planes. The vertical plane of the first lower die plate corresponds to the vertical plane of the cutting punch. According to the metal plate punching and cutting device, metal plates can be cut off while being punched, cutting is facilitated, waste materials cannot be generated, the utilization rate of the metal plates is greatly reduced, and the manufacturing cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guardrail processing, and particularly to a guardrail forming device. BACKGROUND

[0002] The production of highway guardrails is currently made by cold bending forming technology. The current guardrail forming device mainly comprises a leveling machine, multiple punching machines, a forming machine and a cutting machine. Specifically, after the metal plate is leveled by multiple leveling rollers of the leveling machine, it is punched by process hole molds of multiple punching machines, then is formed multiple times by multiple forming rollers of the forming machine, and finally is cut by the cutting machine.

[0003] The current guardrail forming device has defects. Since the structure of the guardrail is complex after forming, Figure 1 as shown, the thickness of the cutter needs to be relatively thick in the final cutting process to ensure cutting of the formed guardrail. However, this will also generate about 1 centimeter of waste material during the cutting process, resulting in material waste. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the utility model aims to provide a guardrail forming device that can punch and cut metal plates at the same time. This not only facilitates cutting, but also does not generate waste material, greatly reducing the use of metal plates and saving manufacturing costs.

[0006] To solve the above technical problems, the utility model provides a guardrail forming device, which adopts the following technical scheme: comprising a leveling machine and a forming machine, further comprising a material guiding roller group and a punching and cutting machine, the leveling machine, the punching and cutting machine, the material guiding roller group and the forming machine are sequentially arranged, the punching and cutting machine comprises a punching and cutting mold, a punching mold is arranged between the material guiding roller group and the punching and cutting mold, the punching and cutting mold comprises a first upper mold plate and a first lower mold plate, a plurality of first punches and a cutting punch are fixed on the first upper mold plate, the first lower mold plate and the cutting punch are arranged as vertical planes on the close side, and the vertical plane of the first lower mold plate corresponds to the vertical plane of the cutting punch.

[0007] Optionally, the leveling machine, the punching and cutting machine, the material guiding roller group and the forming machine are integrated on a rack.

[0008] Optionally, the material guiding roller set comprises two horizontal material guiding rollers rotatably arranged on the first roller frame, a gap is arranged between the two horizontal material guiding rollers for the metal plate to pass through, and a driving gear box connected with the two horizontal material guiding rollers is arranged on the first roller frame.

[0009] Optionally, a guide roller set is arranged between the flattening machine and the punching and cutting die and between the punching die and the forming machine, and the guide roller set comprises two vertical guide rollers rotatably arranged on the second roller frame, and the distance between the two vertical guide rollers is for the metal plate to pass through.

[0010] Optionally, the punching and cutting die comprises a first die frame, a first upper die seat is slidably connected to the first die frame, a first hydraulic cylinder is fixed to the first die frame, the telescopic end of the first hydraulic cylinder is fixed to the top of the first upper die seat, the first upper die plate is fixed to the bottom of the first upper die seat, a first lower die seat is fixed to the bottom of the first die frame, the first lower die plate is fixed to the top of the first lower die seat, and a plurality of first punching holes corresponding to the first punches are formed in the top of the first lower die plate.

[0011] Optionally, the punching die comprises a second die frame, a second upper die seat is slidably connected to the second die frame, a second hydraulic cylinder is fixed to the second die frame, the telescopic end of the second hydraulic cylinder is fixed to the top of the second upper die seat, the second upper die plate is fixed to the bottom of the second upper die seat, a second lower die seat is fixed to the bottom of the second die frame, the second lower die plate is fixed to the top of the second lower die seat, a plurality of second punches are fixed to the bottom of the second upper die plate, and a plurality of second punching holes corresponding to the second punches are formed in the top of the second lower die plate.

[0012] Optionally, the vertical plane of the first lower die plate and the vertical plane of the cutting punch are located on the same vertical plane.

[0013] Optionally, the first punch and the cutting punch are detachably connected to the lower surface of the first upper die plate.

[0014] In summary, the utility model has at least one of the following beneficial effects:

[0015] The flattening machine, the punching and cutting machine, the material guiding roller set and the forming machine are sequentially arranged, the flattening, cutting, double-side punching and forming of the guardrail are realized, the metal plate is punched and cut at the same time when the metal plate is flat and not formed by the punching and cutting machine, the cutting is good and no waste is generated, the use rate of the metal plate is greatly reduced, and the manufacturing cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 It is a structural schematic diagram of the present application forming guardrail;

[0018] Figure 2 It is a structural schematic diagram of the present application guardrail forming device;

[0019] Figure 3 It is a structural schematic diagram of the present application Figure 2 A part of the present application is enlarged and new;

[0020] Figure 4 It is a structural schematic diagram of the present application guide roller group;

[0021] Figure 5 It is a structural schematic diagram of the present application punching and cutting die;

[0022] Figure 6 It is a structural schematic diagram of the present application punching die;

[0023] Figure 7 It is a sectional view of the present application punching and cutting die.

[0024] The drawing mark explanation: 1, the leveling machine; 2, the forming machine; 3, the material leading roller group; 301, the first roller frame; 302, the horizontal material leading roller; 303, the driving gear box; 4, the punching and cutting machine; 401, the punching and cutting die; 401a, the first upper die plate; 401b, the first lower die plate; 401c, the first punch; 401d, the cutting punch; 401e, the vertical plane; 401f, the first die frame; 401g, the first upper die holder; 401h, the first hydraulic cylinder; 401i, the first lower die holder; 401j, the first punching; 402, the punching die; 402a, the second die frame; 402b, the second upper die holder; 402c, the second hydraulic cylinder; 402d, the second upper die plate; 402e, the second lower die holder; 402f, the second lower die plate; 402g, the second punch; 402h, the second punching; 5, the rack; 6, the guide roller group; 601, the second roller frame; 602, the vertical guide roller. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application; rather than all the embodiments; based on the embodiments in the present application; all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment one

[0029] With reference to Figure 2 , Figure 5 and Figure 7 , the present application discloses a guardrail forming device, which comprises a leveling machine 1 and a forming machine 2, and further comprises a material guiding roller set 3 and a punching and cutting machine 4. The leveling machine 1, the punching and cutting machine 4, the material guiding roller set 3 and the forming machine 2 are sequentially arranged. After the metal plate is unwound and conveyed from the unwinding roller (not shown in the figure), it is first leveled by the leveling machine 1, then punched and cut by the punching and cutting machine 4, and then the punched and cut metal plate is sent to the forming machine 2 under the action of the material guiding roller set 3. After being formed by the multiple forming rollers of the forming machine 2, the final shape of the guardrail is formed. Among them, the leveling machine 1 and the forming machine 2 both adopt existing products, which will not be described in detail here.

[0030] The punching and cutting machine 4 comprises a punching and cutting die 401, and a punching die 402 is arranged between the material guiding roller set 3 and the punching and cutting die 401, as shown in Figure 1The utility model discloses a formed guardrail structure, the utility model discloses a punch cutting machine 4 is flat in metal sheet material, is not formed when, the metal sheet material is punched and cut at the same time, at this time, it is not only good cutting, and also will not produce waste.

[0031] The scheme that the metal sheet material is punched and cut at the same time is specifically realized, punch cutting die 401 includes first upper die plate 401a and first lower die plate 401b, a plurality of first punch 401c and cutting punch 401d are fixed on first upper die plate 401a, when first upper die plate 401a moves towards first lower die plate 401b, first punch 401c is punched to the metal sheet material at the same time, cutting punch 401d is cut to the metal sheet material, specifically, the vertical plane 401e of first lower die plate 401b and the vertical plane 401e of cutting punch 401d are close to the side and are set into vertical plane 401e, the vertical plane 401e of first lower die plate 401b corresponds with the vertical plane 401e of cutting punch 401d, wherein the vertical plane 401e of first lower die plate 401b and the vertical plane 401e of cutting punch 401d are located on the same vertical plane, under the action of cutting punch 401d, the vertical plane 401e of cutting punch 401d will be extended out of the vertical plane 401e of first lower die plate 401b metal sheet material and be punched along the vertical plane 401e of vertical plane 401e, compared with the traditional cutting in the subsequent process of forming machine 2 through cutting machine, will not produce waste.

[0032] Referring to Figure 2 , in detail, in the embodiment, the flattening machine 1, punch cutting machine 4, material guide roller group 3 and forming machine 2 are integrated on the rack 5, to ensure the stability of the flattening machine 1, punch cutting machine 4, material guide roller group 3 and forming machine 2 in flattening, punching, transporting and forming the metal sheet material.

[0033] Referring to Figure 3 , in detail, in the embodiment, the material guide roller group 3 includes two horizontal material guide rollers 302 rotatably arranged on the first roller frame 301, a gap for the metal sheet material to pass through is arranged between the two horizontal material guide rollers 302, and a drive gear box 303 connected with the two horizontal material guide rollers 302 and the first roller frame 301 is installed on the rack 5. Under the action of the drive gear box 303, the two horizontal material guide rollers 302 will be driven to rotate in the opposite direction, so that the cut metal sheet material is driven into the multiple forming rollers of the forming machine 2 for multiple forming. Figure 4 , in detail, in the embodiment, the flattening machine 1 and the punch cutting die 401, and the punch die 402 and the forming machine 2 are provided with the guide roller group 6 fixed on the rack 5, the guide roller group 6 includes two vertical guide rollers 602 rotatably arranged on the second roller frame 601, and the distance between the two vertical guide rollers 602 is for the metal sheet material to pass through, and the distance between the two vertical guide rollers 602 is adjustable to ensure the movement guidance of the iron plate.

[0034] Referring to Figure 5 In detail, in the embodiment, the punching and cutting die 401 comprises a first die frame 401f, a first upper die holder 401g is slidably connected to the first die frame 401f, a first hydraulic cylinder 401h is fixed to the first die frame 401f, the first hydraulic cylinder 401h is fixed to the top of the first upper die holder 401g, a first upper die plate 401a is fixed to the bottom of the first upper die holder 401g, a first lower die holder 401i is fixed to the bottom of the first die frame 401f, a first lower die plate 401b is fixed to the top of the first lower die holder 401i, and a plurality of first punching holes 401j corresponding to the first punches 401c are formed in the top of the first lower die plate 401b; when the metal plate is conveyed to the top of the first lower die plate 401b by the leveling machine 1, the first hydraulic cylinder 401h is controlled to move downward by a distance, the first hydraulic cylinder 401h drives the first punch 401c and the cutting punch 401d on the first upper die plate 401a to move downward, the metal plate is punched when the first punch 401c moves into the first punching hole 401j, and the metal plate is cut when the cutting punch 401d moves and is offset from the top surface of the first upper die plate 401a.

[0035] In order to realize double-side punching of the metal plate, i.e., punching treatment is performed on the edges of the two separated metal plates, after the edge of the separated metal plate is punched by the punching and cutting die 401, the other metal plate is punched by the punching die 402. Referring to Figure 6In detail, in the embodiment, the punching die 402 comprises a second die frame 402a, a second upper die holder 402b is slidably connected to the second die frame 402a, a second hydraulic cylinder 402c is fixed to the second die frame 402a, a top of the second upper die holder 402b is fixed to an extension end of the second hydraulic cylinder 402c, a second upper die plate 402d is fixed to a bottom of the second upper die holder 402b, a second lower die holder 402e is fixed to a bottom of the second die frame 402a, a second lower die plate 402f is fixed to a top of the second lower die holder 402e, a plurality of second punches 402g are fixed to a bottom of the second upper die plate 402d, and a plurality of second punching holes 402h corresponding to the second punches 402g are formed in a top of the second lower die plate 402f; after the metal plate is punched, the other metal plate is guided by the material guiding roller set 3, an edge of the other metal plate passes through the second upper die plate 402d, the material guiding roller set 3 stops conveying, the second hydraulic cylinder 402c is controlled to move downward by a distance, the second hydraulic cylinder 402c drives the second punches 402g on the second upper die plate 402d to move downward, and the other metal plate is punched when the second punches 402g move into the second punching holes 402h. In this way, both ends of each metal plate are punched, and then the material guiding roller set 3 guides the metal plate to move towards the forming machine 2, and the forming machine 2 performs a plurality of forming roller forming processes on the punched metal plate.

[0036] Working principle:

[0037] The metal plate material wound on the unwinding roller is unwound, and the unwound plate material is flattened and conveyed under the action of the flattening machine 1. When one end of the metal plate material moves above the first lower die plate 401b in the punching and cutting die 401, the flattening machine 1 stops working. At this time, the one end of the metal plate material does not extend beyond the vertical plane 401e of the first lower die plate 401b, and then the preliminary punching and cutting of the one end of the metal plate material is performed. During the preliminary punching and cutting process, only the punching of the one end of the metal plate material is implemented. After the punching is completed, the flattening machine 1 continues to convey the metal plate material. When the punched one end of the metal plate material moves to the material guide roller group 3, the secondary punching and cutting of the metal plate material is performed. At this time, the metal plate material is driven by the first hydraulic cylinder 401h to perform punching and cutting on the metal plate material by the first punch 401c and the cutting punch 401d. After the punching and cutting is completed, the metal plate material is separated into two metal plate materials. The one end of the metal plate material located on the side of the flattening machine 1 is punched, and the other metal plate material is punched at the one end before the punching and cutting by the punching and cutting machine 4. After the punching and cutting, the material guide roller group 3 conveys the metal plate material a distance forward, so that the unpunched one end of the metal plate material moves to the second upper die plate 402d of the punching die 402. Then, the second hydraulic cylinder 402c drives the second punch 402g on the second upper die plate 402d to punch the unpunched one end of the metal plate material. After the punching is completed, the material guide roller group 3 continues to guide the metal plate material with both ends punched to move to the side of the forming machine 2. The forming machine 2 performs multi-channel forming roller forming processing on the punched metal plate material. In this way, the punching and cutting processing of the subsequent metal plate material is completed. The subsequent metal plate material is flattened, punched, cut, and formed by repeating the above work.

[0038] Embodiment two

[0039] With reference to Figure 5 and Figure 7 , based on the same concept as in Embodiment one, the guardrail forming device further comprises a first punch 401c and a cutting punch 401d which are detachably connected to the lower surface of the first upper die plate 401a. For example, bolt holes are formed in the lower surface of the first upper die plate 401a, and the first punch 401c and the cutting punch 401d are fixed to the lower surface of the first upper die plate 401a by bolts. The first punch 401c and the cutting punch 401d can be selected according to the hole specifications and the cut width specifications of the metal plate material to be punched and cut.

[0040] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A guardrail forming device, comprising a leveling machine (1) and a forming machine (2), characterized in that: It also includes a feeding roller group (3) and a punching and cutting machine (4). The leveling machine (1), punching and cutting machine (4), feeding roller group (3) and forming machine (2) are arranged in sequence. The punching and cutting machine (4) includes a punching and cutting mold (401). A punching mold (402) is provided between the feeding roller group (3) and the punching and cutting mold (401). The punching and cutting mold (401) includes a first upper template (401a) and a first lower template (401b). A plurality of first punches (401c) and cutting punches (401d) are fixed on the first upper template (401a). The sides of the first lower template (401b) and the cutting punches (401d) that are close to each other are arranged as vertical planes (401e). The vertical plane (401e) of the first lower template (401b) corresponds to the vertical plane (401e) of the cutting punches (401d).

2. The guardrail forming device according to claim 1, characterized in that: The leveling machine (1), punching and cutting machine (4), feeding roller group (3) and forming machine (2) are integrated on the frame (5).

3. The guardrail forming device according to claim 2, characterized in that: The feed roller assembly (3) includes two horizontal feed rollers (302) rotatably mounted on the first roller frame (301). A gap is provided between the two horizontal feed rollers (302) for the metal sheet to pass through. The frame (5) is equipped with a drive gearbox (303) connected to the two horizontal feed rollers (302) and the first roller frame (301).

4. The guardrail forming device according to claim 2, characterized in that: Guide roller groups (6) fixed on the frame (5) are provided between the leveling machine (1) and the punching and cutting die (401) and between the punching die (402) and the forming machine (2). The guide roller group (6) includes two vertical guide rollers (602) rotatably mounted on the second roller frame (601). The distance between the two vertical guide rollers (602) is sufficient for the metal sheet to pass through.

5. A guardrail forming device according to any one of claims 1-4, characterized in that: The punching and cutting die (401) includes a first die frame (401f), a first upper die base (401g) is slidably connected to the first die frame (401f), a first hydraulic cylinder (401h) is fixed on the first die frame (401f), the telescopic end of the first hydraulic cylinder (401h) is fixed to the top of the first upper die base (401g), the bottom of the first upper die base (401g) is fixed to the first upper template (401a), the bottom of the first die frame (401f) is fixed to the first lower die base (401i), the top of the first lower die base (401i) is fixed to the first lower template (401b), and the top of the first lower template (401b) has a plurality of first punch holes (401j) corresponding one-to-one with the first punch (401c).

6. A guardrail forming device according to claim 5, characterized in that: The punching die (402) includes a second die frame (402a), a second upper die base (402b) slidably connected to the second die frame (402a), a second hydraulic cylinder (402c) fixed on the second die frame (402a), the telescopic end of the second hydraulic cylinder (402c) fixed to the top of the second upper die base (402b), a second upper template (402d) fixed to the bottom of the second upper die base (402b), a second lower die base (402e) fixed to the bottom of the second die frame (402a), a second lower template (402f) fixed to the top of the second lower die base (402e), a plurality of second punches (402g) fixed to the bottom of the second upper template (402d), and a plurality of second punches (402h) corresponding one-to-one with the second punches (402g) on ​​the top of the second lower template (402f).

7. A guardrail forming device according to claim 5, characterized in that: The vertical plane (401e) of the first lower template (401b) and the vertical plane (401e) of the cutting punch (401d) are located on the same vertical plane.

8. The guardrail forming device according to claim 7, characterized in that: The first punch (401c) and the cutting punch (401d) are detachably connected to the lower surface of the first upper template (401a).

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