Small-specification rectangular pipe forming device

Abstract

The utility model belongs to the technical field and discloses a small-specification rectangular pipe forming device which comprises a machine table and forming mechanisms, a plurality of forming mechanisms are arranged on the machine table at intervals in the conveying direction of a steel plate, one forming mechanism is located on one side of the steel plate, and the other forming mechanism adjacent to the forming mechanism is located on the other side of the steel plate. The multiple forming mechanisms located on one side of the steel plate are used for rolling to form a left side height side length, and the multiple forming mechanisms located on the other side of the steel plate are used for rolling to form a right side height side length. By adopting a symmetrical dislocation mode, the rolling process of two adjacent forming mechanisms has a sequence of symmetrical staggered arrangement in sequence, one bending angle on the inner side of a steel plate is rolled preferentially, then the other bending angle is rolled, the dislocation arrangement can avoid position interference between the forming mechanisms, and the forming efficiency is improved. The forming mechanism can meet the requirement for manufacturing small-specification pipes, the cost for independently manufacturing molds for the small-specification square rectangular pipes is saved, and economic benefits are high.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling forming, in particular to a small-size rectangular tube forming device. Background Art

[0002] Small-sized square and rectangular tubes are square or rectangular tubes with hollow structures. They are widely used in various industries. The raw materials for producing small-sized square and rectangular tubes are steel strip coils. The steel strip coils are unrolled, steel plates are flattened, rolled and bent to form open square and rectangular tubes, extruded and welded to form closed square and rectangular tubes, and then sizing, straightening and shaping to roll out square and rectangular tubes of the required size and shape, and then cut into the required length. Compared with the first method, this method can use part of the initial forming mold universally. When changing the product size, there is no need to replace the mold. The size adjustment can be achieved by adjusting the spacing of the mold, saving part of the mold cost and improving production efficiency.

[0003] However, when manufacturing small-sized square and rectangular tubes, the side length of the tubes is usually 25mm-80mm. Even if the spacing of the forming device is adjusted to the minimum, it cannot meet the production needs of small-sized square and rectangular tubes, resulting in limitations in the forming device and inability to achieve universal use of all types of tubes.

[0004] Therefore, it is urgent to design a new small-size rectangular tube forming device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a small-sized rectangular tube forming device to solve the technical problem that even if the spacing of the forming device is adjusted to the minimum, it cannot meet the needs of producing small-sized rectangular tubes, resulting in limitations in the forming device and inability to achieve universal application of all types of tubes.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Small rectangular tube forming device, including:

[0008] Machine;

[0009] There are several forming mechanisms, and the forming mechanisms are arranged on the machine platform at intervals along the transmission direction of the steel plate. One of the forming mechanisms is located on one side of the steel plate and another adjacent forming mechanism is located on the other side of the steel plate. The forming mechanisms located on one side of the steel plate are used for rolling to form the left side height length, and the forming mechanisms located on the other side of the steel plate are used for rolling to form the right side height length.

[0010] Preferably, the forming mechanism comprises:

[0011] A bracket, which is mounted on the machine platform;

[0012] A first mold, which is disposed on the support; and

[0013] The second mold is arranged on the bracket, the first mold and the second mold are arranged up and down, and there is a gap between the first mold and the second mold for the steel plate to pass through.

[0014] Preferably, the first mold comprises a roller, and the roller is rotatably connected to the bracket;

[0015] The second mold comprises a wheel disc, which is rotatably connected to the bracket, the axial direction of the roller and the axial direction of the wheel disc are arranged at an angle, and the shape of the circumference of the wheel disc matches the shape of the circumference of the roller.

[0016] Preferably, the roller is rotatably connected to the bracket via a first rotating shaft, the wheel disc is rotatably connected to the bracket via a second rotating shaft, and bearings are provided between the roller and the first rotating shaft and between the wheel disc and the second rotating shaft.

[0017] Preferably, the roller comprises a cylindrical section and a conical section, the small head end of the conical section is connected to a section of the cylindrical section and the diameters of the connection are the same, the large head section of the conical section is arranged away from the cylindrical section, and the circumferential side of the wheel disc is located at the connection between the cylindrical section and the conical section.

[0018] Preferably, the cylindrical section and the conical section are integrally formed.

[0019] Preferably, the small-size rectangular tube forming device further comprises:

[0020] A driving mechanism is arranged on the machine platform, and an output end of the driving mechanism is connected to the forming mechanism to drive the forming mechanism to approach or move away from the steel plate along a direction perpendicular to the transmission direction.

[0021] Preferably, the driving mechanism comprises:

[0022] A connecting seat, which is arranged on the machine platform;

[0023] A screw rod is rotatably connected to the connection seat, the axial direction of the screw rod is arranged along a direction perpendicular to the transmission direction, the bracket is threadedly connected to the screw rod, and the bracket is movably abutted against the machine platform; and

[0024] A driving member is arranged on the connecting seat, and an output end of the driving member is connected to one end of the screw rod for driving the screw rod to rotate.

[0025] Beneficial effects of the utility model:

[0026] The utility model adopts a symmetrical staggered manner, so that the rolling processes of two adjacent forming mechanisms are arranged in a symmetrical and staggered order, and one bending angle on the inner side of the steel plate is rolled first, and then the other bending angle is rolled. Such a staggered arrangement can avoid position interference between the forming mechanisms, so that the forming mechanism can meet the production of small-sized pipes with a side length of 25mm-80mm, so that the forming mechanism can be universal, which greatly saves the cost of manufacturing molds separately for small-sized square and rectangular pipes, and has high economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a diagram of the forming process of the left section of the upper side length and the right section of the upper side length of the small-sized square rectangular tube provided by the embodiment of the utility model;

[0028] Figure 2 It is a side view of a small-sized square and rectangular tube forming device provided by an embodiment of the utility model;

[0029] Figure 3 This is a front view of a small-size square and rectangular tube forming device provided by an embodiment of the utility model;

[0030] Figure 4 is along Figure 2 Section view along line AA.

[0031] In the figure:

[0032] 01, left side height; 02, bottom side length; 03, right side height;

[0033] 1. Machine;

[0034] 2. Bracket;

[0035] 3. Roller; 31. First rotating shaft; 32. Cylindrical section; 33. Conical section;

[0036] 4. Roulette; 41. Second rotating shaft;

[0037] 5. Bearings;

[0038] 6. Driving mechanism; 61. Connecting seat; 62. Screw rod; 63. Servo motor. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] When making small-sized square and rectangular tubes, the side length of the tubes is usually 25mm-80mm. Even if the spacing of the forming device is adjusted to the minimum, it cannot meet the production needs of small-sized square and rectangular tubes, resulting in limitations in the forming device and inability to achieve universal use of all types of tubes.

[0044] In order to solve the above problems, combined Figure 1-Figure 4 As shown, this embodiment provides a small-sized rectangular tube forming device, which includes a machine platform 1 and a forming mechanism. A plurality of forming mechanisms are provided, and the plurality of forming mechanisms are arranged on the machine platform 1 at intervals along the transmission direction of the steel plate. One of the forming mechanisms is located on one side of the steel plate and another forming mechanism adjacent to it is located on the other side of the steel plate. The plurality of forming mechanisms located on one side of the steel plate are used for rolling to form a left side height length of 01, and the plurality of forming mechanisms located on the other side of the steel plate are used for rolling to form a right side height length of 03.

[0045] It can be understood that by adopting a symmetrical staggered manner, the rolling processes of two adjacent forming mechanisms are arranged in a symmetrical and staggered order, with one bending angle on the inner side of the steel plate being rolled first, and then the other bending angle being rolled. Such a staggered arrangement can avoid positional interference between the forming mechanisms, so that the forming mechanism can meet the production of small-sized pipes with a side length of 25mm-80mm, making the forming mechanism universal, greatly saving the cost of manufacturing molds separately for small-sized square and rectangular pipes, and having high economic benefits.

[0046] Specifically, Figure 2 and Figure 3 As shown, the forming mechanism includes a bracket 2, a first mold and a second mold. The bracket 2 is installed on the machine 1 by bolts. The bracket 2 includes a vertical part and an inclined part. The vertical part of the bracket 2 is connected to the machine 1. The inclined part is located at the top of the vertical part away from the machine 1, and the inclined part is gradually inclined toward the transmission direction of the steel plate. The first mold and the second mold are both arranged on the bracket 2. The first mold is located on the vertical part, and the second mold is located on the inclined part. Therefore, the first mold and the second mold are arranged up and down. There is a gap between the first mold and the second mold for the steel plate to pass through, and the steel plate passes between the two for rolling.

[0047] More specifically, if Figure 2 and Figure 4 As shown, the first mold includes a roller 3, which is rotatably connected to the bracket 2, and a bearing 5 is coaxially arranged on the roller 3, and a first rotating shaft 31 connected to the vertical part of the bracket 2 is fixedly connected in the bearing 5. The second mold includes a wheel disc 4, which is rotatably connected to the bracket 2, and a bearing 5 is also coaxially arranged on the wheel disc 4, and a second rotating shaft 41 connected to the inclined part of the bracket 2 is fixedly connected in the bearing 5, and the end face of the wheel disc 4 is parallel to the inclined part. Preferably, the bearing 5 is a ball bearing 5, which can bear a higher rotation speed and a larger radial and axial load. Since the friction between the ball and the raceway is relatively small, the wear on the bearing 5 is also small, so the service life is longer.

[0048] The roller 3 includes a cylindrical section 32 and a conical section 33, and the cylindrical section 32 and the conical section 33 are integrally formed and have better integrity. The small end of the conical section 33 is connected to one end of the cylindrical section 32 and the diameters of the connection are the same. The large end of the conical section 33 is arranged away from the cylindrical section 32, and the circumferential side of the wheel disc 4 is located at the connection between the cylindrical section 32 and the conical section 33. The steel plate is bent under the rolling of the wheel disc 4 and the roller 3 to form a left side height length 01 or a right left side height length 01. The left side height length 01 and the right side height length 03 are between the bottom side length 02. The distance between each forming mechanism and the steel plate can be adjusted by the difference in the width of the bottom side length 02.

[0049] For easy debugging, see Figure 3 The small-size rectangular tube forming device of this embodiment also includes a driving mechanism 6, which is arranged on the machine 1. The output end of the driving mechanism 6 is connected to the forming mechanism to drive the forming mechanism to approach or move away from the steel plate in a direction perpendicular to the transmission direction. Specifically, the driving mechanism 6 includes a connecting seat 61, a screw rod 62 and a driving member. The connecting seat 61 is arranged on the machine 1, and the screw rod 62 is rotatably connected to the connecting seat 61. The axial direction of the screw rod 62 is arranged in a direction perpendicular to the transmission direction. The bracket 2 is threadedly connected to the screw rod 62, and the bracket 2 is movably abutted against the machine 1. The driving member is arranged on the connecting seat 61, and the output end of the driving member is connected to one end of the screw rod 62 to drive the screw rod 62 to rotate. The screw rod 62 is driven to rotate by the driving member, and the screw rod 62 drives the connecting seat 61 to move in a direction perpendicular to the transmission direction to approach or move away from the steel plate, thereby realizing the universality of the small-size square rectangular tube forming mechanism.

[0050] Preferably, the driving member is a servo motor 63 , and the precise adjustment of the position of the forming mechanism is achieved through the rotation of the servo motor 63 .

[0051] In other embodiments, the forming mechanisms on both sides of the steel plate can also be arranged opposite to each other to realize the production of large-sized square and rectangular tubes, so that the adaptability of the forming mechanism is better. Whether it is large-sized or small-sized pipes, the cost of using a set of manufacturing molds is sufficient, and the economic benefits are good.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Small-size rectangular tube forming device, characterized in that: include: Machine (1); A plurality of forming mechanisms are provided, and the plurality of forming mechanisms are arranged on the machine platform (1) at intervals along the transmission direction of the steel plate, wherein one of the forming mechanisms is located on one side of the steel plate and another adjacent forming mechanism is located on the other side of the steel plate, the plurality of forming mechanisms located on one side of the steel plate are used for rolling to form the left height side length (01), and the plurality of forming mechanisms located on the other side of the steel plate are used for rolling to form the right height side length (03).

2. The small-size rectangular tube forming device according to claim 1 is characterized in that: The forming mechanism comprises: A bracket (2) mounted on the machine platform (1); a first mold, which is arranged on the support (2); and The second mold is arranged on the support (2), the first mold and the second mold are arranged up and down, and there is a gap between the first mold and the second mold for the steel plate to pass through.

3. The small-size rectangular tube forming device according to claim 2 is characterized in that: The first mold comprises a roller (3), and the roller (3) is rotatably connected to the bracket (2); The second mold comprises a wheel disc (4), the wheel disc (4) is rotatably connected to the bracket (2), the axial direction of the roller (3) is arranged at an angle to the axial direction of the wheel disc (4), and the shape of the circumference of the wheel disc (4) matches the shape of the circumference of the roller (3).

4. The small-size rectangular tube forming device according to claim 3 is characterized in that: The roller (3) is rotatably connected to the bracket (2) via a first rotating shaft (31), the wheel disc (4) is rotatably connected to the bracket (2) via a second rotating shaft (41), and bearings (5) are provided between the roller (3) and the first rotating shaft (31) and between the wheel disc (4) and the second rotating shaft (41).

5. The small-size rectangular tube forming device according to claim 3 is characterized in that: The roller (3) comprises a cylindrical section (32) and a conical section (33); the small end of the conical section (33) is connected to a section of the cylindrical section (32) and the diameters of the connection are the same; the large end of the conical section (33) is arranged away from the cylindrical section (32); and the circumferential side of the wheel disc (4) is located at the connection between the cylindrical section (32) and the conical section (33).

6. The small-size rectangular tube forming device according to claim 5 is characterized in that: The cylindrical section (32) and the conical section (33) are integrally formed.

7. The small-size rectangular tube forming device according to any one of claims 2 to 6, characterized in that: The small-size rectangular tube forming device also includes: A driving mechanism (6) is arranged on the machine platform (1); an output end of the driving mechanism (6) is connected to the forming mechanism and is used to drive the forming mechanism to approach or move away from the steel plate in a direction perpendicular to the transmission direction.

8. The small-size rectangular tube forming device according to claim 7 is characterized in that: The driving mechanism (6) comprises: A connecting seat (61) arranged on the machine platform (1); A screw rod (62) is rotatably connected to the connecting seat (61), the axial direction of the screw rod (62) is arranged in a direction perpendicular to the transmission direction, the bracket (2) is threadedly connected to the screw rod (62), and the bracket (2) is movably abutted against the machine platform (1); and A driving member is arranged on the connecting seat (61), and an output end of the driving member is connected to one end of the screw rod (62) for driving the screw rod (62) to rotate.

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